2400 ADDITIONAL TESTABLE SCIENCE HYPOTHESES — 301–2700

STATUS AND SCOPE
These are speculative research proposals, not experimental results. Worldwide originality has not been established. No human subjects, personal data, demographic data, social theories, or behavioral claims are included. Technology includes engineered apparatus.

STRUCTURE
The first 200 additions are individually drafted proposals. The following 2,200 are systematic, system-specific experimental variants: 22 research areas, 10 model systems per area, and 10 perturbation or measurement questions per system. Related variants share a mechanism and are explicitly labeled; 2,400 entries do not imply 2,400 independent new mechanisms. Literature review and feasibility pilots are required before treating any as a research gap. Some will overlap known work or fail preliminary compatibility checks.

EVALUATION
Every entry has a prediction, a possible experiment, controls, and a contrary outcome. Predefine the tested parameter range, measurable effect size, primary outcome, rejection rule, and replication strategy. A nonsignificant result with inadequate precision is inconclusive. Prefer confidence intervals and independent preparations. Technical repeats alone do not establish reproducibility. A positive experiment supports a bounded claim; it does not prove universal truth.

Biological entries concern nonpathogenic models or purified cell-free systems. Equipment and methods assume appropriate research facilities and trained operation. These are research starting points, not complete laboratory protocols. No measured or fabricated experimental data are supplied.

0301. Extrusion pauses
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: Brief extrusion pauses will increase surface roughness more in slowly relaxing polymer melts.
Test: Measure roughness and melt relaxation across pause durations.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0302. Cooling direction
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: One-sided cooling will produce greater residual curvature than symmetric cooling in equal-thickness polymer sheets.
Test: Map curvature and residual strain after matched cooling histories.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0303. Draw reversal
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: Reversing draw direction before solidification will reduce final chain orientation relative to continuous drawing.
Test: Compare birefringence and tensile anisotropy at matched total strain.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0304. Pellet moisture heterogeneity
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: Uneven pellet moisture will increase extrudate defect variability beyond that from equal mean moisture.
Test: Compare uniform and mixed-moisture feedstocks using microscopy and mass analysis.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0305. Solvent removal staging
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: An initial slow solvent-removal stage will reduce internal voids in thick cast polymer films.
Test: Image voids after staged and constant-rate drying.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0306. Melt filtering delay
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: Longer residence after melt filtration will increase newly formed gel inclusions in a thermally sensitive model polymer.
Test: Count inclusions and measure molecular-mass distributions over residence times.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0307. Shear alignment persistence
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: Confined polymer melt films will retain shear-induced orientation longer than bulk samples after flow stops.
Test: Track birefringence relaxation across film thicknesses.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0308. Annealing under curvature
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: Annealing a bent semicrystalline strip will bias crystallite orientation relative to flat annealing.
Test: Measure diffraction orientation and subsequent bending recovery.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0309. Regrind particle uniformity
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: Uniform regrind particle sizes will reduce local fusion defects during low-pressure molding.
Test: Compare defect maps across feedstocks with matched recycled fraction.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0310. Release surface compliance
Area: Polymer processing
Type: individually drafted proposal
Hypothesis: A compliant mold-release layer will reduce demolding crack incidence in brittle polymer replicas.
Test: Measure demolding forces and crack counts across layer stiffnesses.
Controls: Composition, temperature, specimen dimensions, and processing history
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0311. Green-body density gradients
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Gentler initial density gradients will reduce warpage during ceramic sintering.
Test: Map initial density and final shape in model ceramic compacts.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0312. Bimodal powder necking
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Small particles placed selectively at large-particle contacts will accelerate initial sintering neck formation.
Test: Image interrupted sintering compared with randomly mixed powders.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0313. Binder escape channels
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Temporary channels will reduce internal cracking during binder removal from thick ceramic parts.
Test: Compare tomography and mass-loss curves with channel-free controls.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0314. Sintering support friction
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Lower support friction will reduce in-plane distortion during constrained ceramic shrinkage.
Test: Measure shrinkage fields on supports with calibrated friction.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0315. Interrupted grain growth
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Brief lower-temperature holds between hot stages will narrow ceramic grain-size distributions.
Test: Compare microscopy after schedules with matched final density.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0316. Pore shape rounding
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Pre-rounded pores will produce less strength variability than angular pores at equal ceramic porosity.
Test: Measure fracture-strength distributions and pore geometry.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0317. Fiber sacrificial orientation
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Aligned sacrificial fibers will create more directionally uniform permeability than randomly oriented fibers after burnout.
Test: Measure directional permeability and channel connectivity.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0318. Coating shrinkage matching
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: A graded ceramic coating will crack less when its shrinkage profile approaches that of its substrate.
Test: Measure shrinkage curves and crack density across graded compositions.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0319. Particle humidity conditioning
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Uniform humidity conditioning will improve consistency of ceramic powder compaction pressure.
Test: Record compaction curves for conditioned and unconditioned batches.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0320. Laser scan turn spacing
Area: Ceramics and sintering
Type: individually drafted proposal
Hypothesis: Larger separation between scan reversals will reduce local thermal cracking during ceramic laser processing.
Test: Map temperatures and cracks in specialist processing equipment.
Controls: Powder chemistry, initial density, heating schedule, and atmosphere
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0321. Twin spacing and springback
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Intermediate twin-boundary spacing will minimize springback variability in a suitable model alloy.
Test: Measure microscopy and bending recovery across matched alloy treatments.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0322. Prestrain direction memory
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Crosswise prestrain will shift later yielding more strongly than parallel prestrain at equal plastic work.
Test: Compare directional yield surfaces after calibrated prestrains.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0323. Grain-boundary oxidation depth
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Curved grain boundaries will show greater oxidation-depth variability than straight boundaries in matched metal films.
Test: Map boundary curvature and oxide penetration after controlled exposure.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0324. Fine precipitate dissolution
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Broad precipitate-size distributions will create a longer dissolution tail than narrow distributions at equal precipitate volume.
Test: Track precipitates during controlled annealing.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0325. Surface work hardening gradient
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: A smooth work-hardening gradient will delay surface strain localization relative to an abrupt gradient.
Test: Map local strain during tensile loading.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0326. Rolling texture and hydrogen-free cracking
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Strong rolling texture will change crack-path tortuosity in inert-environment fatigue independent of grain size.
Test: Measure fatigue paths in texture-controlled sheet samples.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0327. Metal foam joint rounding
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Rounded strut junctions will reduce fatigue-life variability in metal foams.
Test: Cycle geometrically matched foams and image junction damage.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0328. Quench agitation intermittency
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Intermittent quench agitation will reduce distortion in thin asymmetric metal coupons within a finite pulse range.
Test: Measure cooling fields and final distortion in controlled facilities.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0329. Recovery anneal sequencing
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Two separated recovery anneals will reduce residual-stress variability more than one continuous anneal of equal duration.
Test: Map stress and hardness after matched temperature exposures.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0330. Dislocation escape length
Area: Metal microstructures
Type: individually drafted proposal
Hypothesis: Narrower freestanding metal ribbons will show faster post-load stress relaxation through surface dislocation escape.
Test: Measure relaxation and defect motion across ribbon widths.
Controls: Alloy composition, grain size, loading, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0331. Adhesive edge porosity
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: A narrow porous edge zone will reduce peel-front force oscillations relative to a uniformly dense adhesive.
Test: Measure peel force and front shape on patterned bonds.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0332. Cure illumination direction
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: Opposed illumination will reduce through-thickness cure gradients more than one-sided illumination at equal absorbed light.
Test: Map conversion and modulus through transparent model adhesives.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0333. Joint taper and creep
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: A gradual adhesive-thickness taper will reduce concentrated creep strain at lap-joint ends.
Test: Track full-field strain during sustained loading.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0334. Primer island connectivity
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: Connected primer islands will improve wet-aging bond retention more than isolated islands of equal coverage.
Test: Compare bond strength and water-ingress maps.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0335. Bondline particle compressibility
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: Compressible spacer particles will reduce assembly-induced voids compared with rigid spacers of equal size.
Test: Image bondlines after controlled joining pressure.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0336. Reversible adhesive cooling rate
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: Slow cooling will increase repeatability of reversible adhesive release temperatures.
Test: Measure release curves over repeated thermal cycles.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0337. Weld bead spacing
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: Staggered low-energy weld spots will reduce distortion relative to aligned spots at equal joined area.
Test: Measure joint geometry and mechanical strength.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0338. Solvent welding contact delay
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: A short solvent-evaporation delay before contact will maximize bond strength in a compatible polymer pair.
Test: Sweep delay and measure solvent content and failure location.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0339. Adhesive filler boundary segregation
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: Filler concentrated near bondline midplanes will reduce edge moisture sensitivity relative to uniform filler.
Test: Measure aging strength and spatial moisture uptake.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0340. Repair patch stiffness steps
Area: Adhesion and joining
Type: individually drafted proposal
Hypothesis: Several small stiffness steps will reduce interfacial strain peaks around a repair patch.
Test: Map strain in matched patched model laminates.
Controls: Adhesive chemistry, contact area, curing conditions, and loading speed
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0341. Gel deswelling fronts
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: A lateral stiffness gradient will curve a deswelling front in a hydrogel strip.
Test: Image front position and local modulus during controlled solvent exchange.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0342. Crosslink mobility and indentation
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: Mobile crosslinks will produce greater indentation recovery after long holds than fixed crosslinks at equal initial modulus.
Test: Compare force relaxation and recovered topography.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0343. Embedded droplet reservoirs
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: Dispersed benign liquid reservoirs will delay gel stiffening during drying.
Test: Measure local water content and modulus against reservoir-free gels.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0344. Photogel pattern overlap
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: Overlapping exposure boundaries will produce smoother strain fields than sharply separated exposure zones.
Test: Map conversion and swelling deformation in photogels.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0345. Gel salt-front steering
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: A fixed-charge gradient will steer an advancing salt-induced contraction front.
Test: Image contraction while independently mapping ion concentration.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0346. Hydrogel skin perforation
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: Sparse skin perforations will reduce swelling delay more than expected from their fractional open area.
Test: Measure uptake and deformation across perforation densities.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0347. Interpenetrating network order
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: Reversing network-formation order will change damage recovery even at equal final network composition.
Test: Compare hysteresis and microscopic structure after repeated strain.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0348. Gel cavity pressure memory
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: Closed cavities will prolong gel volume recovery after compression compared with vented cavities.
Test: Track pressure proxies and shape recovery in transparent gels.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0349. Stimulus gradient rotation
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: Rotating a thermal gradient will create a persistent helical shape in a slowly relaxing responsive strip.
Test: Measure three-dimensional shape and recovery after gradient removal.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0350. Hydrogel particle contacts
Area: Hydrogels and responsive solids
Type: individually drafted proposal
Hypothesis: Flat-faced gel particles will form a stronger compressed packing than spherical particles at equal swelling and solid fraction.
Test: Measure packing modulus and contact rearrangements.
Controls: Water content, chemistry, sample dimensions, and stimulus intensity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0351. Auxetic cell orientation
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: Alternating auxetic-cell orientations will reduce lateral strain variability under compression.
Test: Measure local strain in printed lattice panels.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0352. Hollow inclusion wall variance
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: Narrower hollow-particle wall-thickness distributions will reduce sudden collapse events in lightweight composites.
Test: Record compression force drops and inclusion fractures.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0353. Hierarchical beam joints
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: Adding compliant secondary joints will reduce sensitivity of lattice stiffness to one missing primary beam.
Test: Compare intact and deliberately damaged lattices.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0354. Embedded mesh pretension
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: Moderate mesh pretension will reduce impact indentation in soft composites without increasing permanent damage.
Test: Measure indentation and recovery across pretension levels.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0355. Conductive fiber crossings
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: Bonding only selected fiber crossings will preserve conductivity under bending better than bonding every crossing.
Test: Track resistance and crossing damage during cycling.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0356. Graded cell chirality
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: A gradual chirality transition will spread torsional strain more uniformly than an abrupt transition.
Test: Map rotations in architected cylinders.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0357. Inclusion corner rounding
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: Rounded stiff inclusions will reduce matrix cavitation compared with sharp inclusions at equal volume.
Test: Image cavitation during tensile loading.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0358. Layer registration offsets
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: Small deliberate layer offsets will reduce aligned weak-plane failure in stacked cellular solids.
Test: Compare fracture paths across controlled offsets.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0359. Foam skin permeability
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: A permeable outer skin will reduce compression-rate sensitivity by allowing trapped gas escape.
Test: Measure stress across loading rates and skin permeabilities.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0360. Embedded void connectivity
Area: Composites and architected materials
Type: individually drafted proposal
Hypothesis: Connected voids will increase damping at intermediate compression frequencies through internal gas flow.
Test: Measure frequency-dependent damping with sealed and vented controls.
Controls: Constituent fractions, mass, dimensions, and fabrication tolerances
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0361. Contact-line corner angle
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: Rounded chemical-pattern corners will reduce droplet pinning variability compared with sharp corners.
Test: Measure advancing and receding contact angles across identical patterns.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0362. Condensate collision offset
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: Off-center collisions will shed condensate from tilted fibers more efficiently than central collisions.
Test: Use high-speed imaging of controlled droplet pairs.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0363. Liquid bridge asymmetry
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: Unequal wetting angles at bridge endpoints will bias the rupture position toward one support.
Test: Image bridge necking while swapping endpoint treatments.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0364. Droplet shell permeability
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: A permeable elastic droplet shell will suppress rebound more strongly after long contact than short contact.
Test: Measure rebound and volume exchange over impact speeds.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0365. Surface nanobubble spacing
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: Closer gas-pocket spacing will increase collective collapse under pressure beyond independent-pocket predictions.
Test: Image patterned gas pockets during calibrated pressure ramps.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0366. Dew droplet edge roughness
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: A roughness gradient confined to track edges will guide dew without increasing overall retention as much as uniform roughening.
Test: Track droplet paths and collected mass.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0367. Spreading solvent prefilm
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: A thin compatible prefilm will reduce spreading-time variability on mildly heterogeneous surfaces.
Test: Measure spreading fronts with controlled prefilm thickness.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0368. Droplet footprint eccentricity
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: Elongated footprints will enhance evaporation-rate sensitivity to airflow direction.
Test: Rotate patterned droplets relative to calibrated airflow.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0369. Contact-line elastic ridge
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: Faster-relaxing soft substrates will show less stick-slip during slow droplet withdrawal.
Test: Measure ridge dynamics and contact-line motion.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0370. Immersed drop detachment
Area: Wetting and droplets
Type: individually drafted proposal
Hypothesis: A density gradient in the surrounding liquid will shift pendant-drop detachment volume without changing interfacial tension.
Test: Measure detachment alongside density and tension profiles.
Controls: Liquid composition, temperature, surface cleanliness, and droplet volume
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0371. Channel corner fillets
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Rounded channel corners will reduce long-tail residence times for nonadsorbing tracers.
Test: Measure breakthrough curves in sharp and filleted channels.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0372. Branch compliance matching
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Matching branch compliance rather than resistance alone will improve pulse splitting uniformity.
Test: Measure transient branch flows in transparent networks.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0373. Oscillatory inlet phase
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Phase-offset inlet oscillations will reduce unmixed regions in a two-inlet junction.
Test: Map tracer concentration at equal average throughput.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0374. Dead-end cavity inclination
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Inclined dead-end cavities will exchange solute faster than perpendicular cavities under oscillatory flow.
Test: Image tracer clearance across cavity angles.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0375. Microchannel wall waviness
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Low-amplitude long-wavelength wall waviness will reduce bubble trapping relative to abrupt steps.
Test: Count trapped bubbles under controlled injections.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0376. Capillary network junction order
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Reordering identical junctions will change passive filling sequence beyond total path resistance.
Test: Track filling in geometrically permuted networks.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0377. Pulsatile viscosity contrast
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Pulsed flow will amplify lateral segregation of two miscible liquids with different viscosities.
Test: Image concentration profiles while controlling molecular diffusion.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0378. Elastic tube wave reflections
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: A gradual compliance transition will reduce pressure-wave reflection compared with a sharp transition.
Test: Measure incident and reflected pulses along matched tubes.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0379. Reservoir meniscus coupling
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Small reservoir headspaces will introduce measurable anti-correlated flow fluctuations in connected channels.
Test: Measure pressure and flow while varying headspace volume.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0380. Capillary stop edge wear
Area: Microfluidics and liquid transport
Type: individually drafted proposal
Hypothesis: Repeated wetting cycles will shift valve burst pressure more strongly at sharp than rounded capillary stops.
Test: Track burst-pressure distributions and edge geometry.
Controls: Flow rate, fluid properties, channel dimensions, and input energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0381. Droplet charge asymmetry
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: Asymmetrically charged droplets will aggregate more directionally than uniformly charged droplets of equal mean charge.
Test: Image dilute emulsions and characterize charge distributions.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0382. Colloid softness and depletion
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: Soft colloids will form more reversible depletion clusters than rigid colloids at matched attraction strength.
Test: Measure cluster breakup and particle deformation.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0383. Emulsion temperature cycling
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: Mild temperature cycling will broaden droplet sizes faster in weakly stabilized than strongly stabilized emulsions.
Test: Track size distributions and interfacial coverage.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0384. Mixed stabilizer exchange
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: A slow-exchanging stabilizer will reduce loss of a fast-exchanging stabilizer from droplet interfaces.
Test: Measure labeled stabilizer exchange and coalescence.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0385. Particle roughness and sediment beds
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: Rough colloids will produce more permeable sediment beds than smooth colloids at equal settled solid fraction.
Test: Measure bed structure and permeability.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0386. Colloidal crystal boundary mobility
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: A weak periodic shear will increase grain-boundary mobility more than grain-interior disorder.
Test: Image ordered colloids during sub-yield oscillation.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0387. Hollow particle buoyancy drift
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: Porous hollow particles will show slower buoyancy equilibration than nonporous particles after liquid exchange.
Test: Track settling and internal liquid uptake.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0388. Droplet interfacial age
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: Older droplet interfaces will resist sudden area expansion more strongly than fresh interfaces at equal bulk stabilizer concentration.
Test: Measure dynamic tension and expansion response.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0389. Colloid shape polydispersity
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: Small shape variation will suppress ordered packing more strongly than comparable relative size variation.
Test: Compare scattering and microscopy in concentrated suspensions.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0390. Emulsion confinement layering
Area: Emulsions and colloids
Type: individually drafted proposal
Hypothesis: Channel heights near integer droplet diameters will reduce droplet rearrangement noise.
Test: Measure flow fluctuations across confinement ratios.
Controls: Particle or droplet loading, chemistry, temperature, and preparation energy
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0391. Foam film age contrast
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: A single young film among aged films will redirect a local foam rearrangement.
Test: Image controlled foams after selective film renewal.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0392. Foam edge drainage asymmetry
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Asymmetric boundary wetting will produce a lateral liquid-fraction gradient during drainage.
Test: Map liquid fraction while reversing boundary treatments.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0393. Granular vibration polarization
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Elliptically polarized vibration will generate stronger shape-dependent segregation than linear vibration at equal energy.
Test: Track mixed-shape grains in enclosed beds.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0394. Grain surface patchiness
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Patchy friction will produce more intermittent hopper flow than uniform friction at equal mean coefficient.
Test: Measure discharge and particle rotations.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0395. Granular confinement elasticity
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Soft sidewalls will broaden the distribution of force-chain lifetimes under slow compression.
Test: Use photoelastic grains and calibrated wall stiffness.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0396. Foam bubble shell elasticity
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Elastic bubble coatings will reduce irreversible neighbor exchanges during sub-yield cycling.
Test: Image rearrangements and measure coating mechanics.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0397. Rotating drum fill history
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Filling a drum in alternating layers will preserve segregation memory longer than premixing the same grains.
Test: Track labeled grains through controlled rotations.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0398. Grain hole orientation
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Perforated grains will align their holes with shear more slowly than solid shape-matched grains.
Test: Image orientations in a slow shear cell.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0399. Granular acoustic probing
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Weak acoustic pulses will detect approaching compaction saturation before bulk height stabilizes.
Test: Track sound transmission and bed height during cycling.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0400. Foam channel branching
Area: Foams and granular systems
Type: individually drafted proposal
Hypothesis: Gradual channel branching will reduce bubble fragmentation relative to abrupt branching at equal flow division.
Test: Count fragmentation and measure local deformation.
Controls: Particle properties, packing fraction, liquid fraction, and driving conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0401. Contact asperity height spread
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Narrow asperity-height distributions will reduce thermal-conductance variability under repeated clamping.
Test: Measure conductance and contact maps across repeated assemblies.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0402. Thermal grease particle migration
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Alternating shear will redistribute thermal-grease filler less unevenly than unidirectional shear.
Test: Map filler and thermal resistance after cycling.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0403. Porous heat-spreader venting
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Vented pores will reduce transient thermal lag compared with sealed pores containing humid air.
Test: Measure temperature steps and internal humidity.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0404. Anisotropic insert rotation
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Rotating anisotropic inserts will shift heat concentration without changing average conductivity.
Test: Map heat fields across insert orientations.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0405. Contact dwell dependence
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Thermal contact conductance will increase with dwell time more strongly for viscoelastic than elastic pads.
Test: Measure conductance and deformation during fixed-load holds.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0406. Interface waviness wavelength
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Longer-wavelength waviness will produce larger cold spots at equal roughness amplitude.
Test: Map temperature under uniform heating.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0407. Thin-film boundary roughness
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Correlated roughness on opposite film faces will alter in-plane thermal transport more than uncorrelated roughness.
Test: Measure transport in specialist matched thin-film samples.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0408. Compressive thermal ratcheting
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Unequal expansion of bonded layers will increase thermal resistance progressively under asymmetric temperature cycles.
Test: Track resistance and interface separation.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0409. Particle contact oxidation
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Thin oxide shells will increase thermal-network sensitivity to compression in metal-particle beds.
Test: Measure conductance versus load and oxide thickness.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0410. Thermal adhesive cure gradient
Area: Conduction and thermal interfaces
Type: individually drafted proposal
Hypothesis: Through-thickness cure gradients will create direction-dependent transient thermal impedance.
Test: Reverse heat-flow measurements through characterized adhesive layers.
Controls: Temperature range, contact pressure, geometry, and material composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0411. Heated patch ordering
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: Alternating large and small heated patches will destabilize natural-convection plumes sooner than equal patches.
Test: Image plumes while sweeping input power.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0412. Sidewall heat leakage
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: Small asymmetric sidewall heating will shift convection-roll orientation before changing total heat transfer.
Test: Map flow orientation and calorimetric output.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0413. Oscillating fin flexibility
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: Flexible fins will improve cooling only above a flow-dependent oscillation threshold.
Test: Measure fin motion and heat transfer across airflow speeds.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0414. Coolant inlet stratification
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: A stratified inlet temperature will persist farther in flattened than circular ducts at equal hydraulic diameter.
Test: Map downstream fluid temperatures.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0415. Convection cavity tilt memory
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: Rapid tilt reversal will retain circulation direction longer in high-viscosity fluids.
Test: Track circulation after controlled tilt changes.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0416. Bubble-free boiling precursor
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: Microscale wall-temperature fluctuations will increase before visible nucleation in clean heated liquids.
Test: Use specialist synchronized thermal imaging and microscopy.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0417. Heat exchanger surface aging
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: Spatially uneven surface aging will increase wall-temperature variability more than uniform aging at equal mean resistance.
Test: Map heat transfer with controlled benign deposits.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0418. Pulsed fan coast interval
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: Short fan-off intervals will preserve convective heat removal disproportionately when boundary-layer inertia is large.
Test: Measure heat removal and actual fan energy.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0419. Buoyant jet nozzle shape
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: A flattened nozzle will change buoyant-jet merging height relative to a circular nozzle at equal flow.
Test: Image thermal plumes from matched nozzles.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0420. Inclined cavity baffles
Area: Convection and heat exchange
Type: individually drafted proposal
Hypothesis: Thin inclined baffles will suppress temperature oscillations more efficiently than horizontal baffles of equal area.
Test: Measure temperature spectra and heat transfer.
Controls: Fluid properties, thermal input, geometry, and boundary temperatures
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0421. Melt capsule wall elasticity
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: Elastic capsule walls will reduce void formation during repeated solidification.
Test: Image voids and track latent-heat capacity.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0422. Nucleator localization
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: Wall-localized nucleators will reduce supercooling variability more than dispersed nucleators of equal mass.
Test: Measure freezing temperatures across independent cycles.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0423. Phase-change layer orientation
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: Vertical phase-change layers will melt less uniformly than horizontal layers when buoyancy is significant.
Test: Map melt fronts under matched heating.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0424. Solidification pause location
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: A pause near mid-solidification will reduce final shrinkage-cavity size more than an early pause.
Test: Compare cavity tomography across pause timings.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0425. Thermal storage capsule packing
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: Ordered capsule packing will reduce discharge-temperature variability relative to random packing.
Test: Measure outlet temperature and flow distribution.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0426. Melt viscosity gradient
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: A viscosity gradient will bend a melt front even with uniform thermal conductivity.
Test: Image model phase-change mixtures with measured properties.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0427. Solid seed anchoring
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: Anchored solid seeds will stabilize freezing location over more cycles than freely mobile seeds.
Test: Track seed position and nucleation events.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0428. Capsule surface grooves
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: Axial grooves will accelerate external condensate removal and improve latent-storage charging under moist airflow.
Test: Measure condensate and charging energy.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0429. Thermal expansion headspace
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: An intermediate headspace volume will minimize cyclic capsule pressure variability.
Test: Measure pressure over controlled phase-change cycles.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0430. Multiple melting bands
Area: Phase-change heat systems
Type: individually drafted proposal
Hypothesis: Two separated melting transitions will reduce output-temperature swings under variable heat pulses.
Test: Compare calorimetry and discharge curves with single-transition controls.
Controls: Energy input, phase-change mass, geometry, and environmental losses
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0431. Condensation fiber twist
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Twisted paired fibers will transport condensate farther before detachment than parallel fibers.
Test: Image condensate motion and collection.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0432. Evaporator edge insulation
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Insulating only an evaporator edge will reduce salt accumulation there at equal total evaporation.
Test: Map temperature and benign salt deposition.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0433. Vapor gap shape
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: A tapered vapor gap will reduce stagnant condensation zones relative to a uniform gap.
Test: Map condensation rate and vapor concentration.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0434. Pulsed humidity nucleation
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Brief humidity overshoots will increase condensation-site density without proportionally increasing final droplet mass.
Test: Count nuclei and track droplet growth.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0435. Droplet coalescence heat pulses
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Local temperature pulses following coalescence will measurably delay nearby condensation.
Test: Synchronize thermal imaging and droplet microscopy.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0436. Porous condenser thickness
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Intermediate porous-coating thickness will maximize condensate drainage before liquid flooding.
Test: Measure collection across coating thicknesses.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0437. Evaporative surface rotation
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Slow periodic orientation changes will reduce persistent dry patches in a wick.
Test: Image wetness and measure evaporation.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0438. Vapor adsorption preconditioning
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Humidity preconditioning will shorten condensation induction more on porous than smooth surfaces.
Test: Measure induction and retained water.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0439. Condensate track junction angles
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Acute track junctions will retain less liquid than right-angle junctions at equal wettability.
Test: Measure residual droplets after drainage.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0440. Evaporating droplet thermal coupling
Area: Evaporation and condensation
Type: individually drafted proposal
Hypothesis: Closely spaced droplets on conductive supports will have more synchronized evaporation rates.
Test: Compare independent mass-loss curves across spacing.
Controls: Humidity, pressure, airflow, surface temperature, and liquid purity
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0441. Emissivity patch size
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Smaller emissivity patches will reduce surface-temperature contrast under radiative cooling.
Test: Map temperature across matched average emissivity.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0442. Angular radiation shields
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Angled reflective shields will reduce sensitivity to a warm horizon more than flat shields of equal area.
Test: Measure cooling under controlled angular radiation.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0443. Thermochromic cycling width
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Narrower switching hysteresis will improve average temperature regulation under slowly varying radiation.
Test: Measure temperature and optical state during radiation cycles.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0444. Subsurface reflective particles
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Reflective particles buried shallowly will reduce heating without increasing surface abrasion as much as exposed particles.
Test: Measure absorption, wear, and temperature.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0445. Radiative cavity venting
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Small vents will alter apparent cavity emissivity less than equal-area openings near the cavity base.
Test: Measure calibrated radiation across vent positions.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0446. Infrared coating strain
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Repeated strain will shift infrared emissivity before visible cracks appear in a brittle coating.
Test: Track spectra and microscopic damage.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0447. Porous optical thickness
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Drying-induced pore collapse will change near-infrared transmission before visible transparency.
Test: Measure spectra and pore volume during drying.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0448. Polarized heating orientation
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Aligned absorbing fibers will show orientation-dependent photothermal bending under polarized illumination.
Test: Rotate polarization and measure curvature.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0449. Radiation baffle contamination
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: Dust near baffle entrances will increase stray thermal radiation more than equal dust deep inside.
Test: Apply controlled inert dust and measure detector offsets.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0450. Temperature-dependent scattering
Area: Radiation and thermal optics
Type: individually drafted proposal
Hypothesis: A reversible refractive-index mismatch will change thermal-light escape from particle-filled films.
Test: Measure temperature-dependent scattering and emission separately.
Controls: Spectral properties, temperature, geometry, and absorbed power
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0451. Electrode rest orientation
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: Vertical orientation will accelerate post-pulse concentration recovery compared with horizontal orientation when buoyancy assists transport.
Test: Measure concentration and voltage recovery in safe aqueous model cells.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0452. Current collector pattern
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: Radial current-collector patterns will reduce potential variation on circular electrodes relative to edge strips.
Test: Map local potential at matched conductor mass.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0453. Electrolyte mixing delay
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: A delayed gentle mixing step will recover more useful voltage than immediate mixing after a concentration-building pulse.
Test: Compare recovery and mixing energy across delays.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0454. Surface oxide patch spacing
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: Closely spaced oxide patches will homogenize initial reaction current better than widely spaced patches of equal coverage.
Test: Use local electrochemical mapping.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0455. Electrode edge rounding
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: Rounded electrode edges will reduce local gas-generation hotspots relative to sharp edges.
Test: Image specialist aqueous gas-evolution experiments with local-current controls.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0456. Aqueous buffer placement
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: Buffer confined near an electrode will reduce bulk electrolyte use for a target local-pH stability.
Test: Measure local pH and side reactions.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0457. Reference electrode distance
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: Closer reference placement will reduce apparent pulse hysteresis caused by uncompensated resistance.
Test: Compare voltage transients with independent resistance measurements.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0458. Electrode polishing direction
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: Directional polishing will bias initial deposit elongation at low overpotential.
Test: Rotate polishing direction and image benign metal deposits.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0459. Electrolyte headspace exchange
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: A larger air-exposed headspace will change long-rest voltage drift in oxygen-sensitive aqueous model cells.
Test: Measure dissolved oxygen and voltage.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0460. Porous electrode saturation
Area: Aqueous electrochemistry
Type: individually drafted proposal
Hypothesis: Partial wetting will produce larger impedance variability than full wetting at equal measured active area.
Test: Measure wetting maps and impedance repeatability.
Controls: Electrolyte composition, electrode area, temperature, and delivered charge
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0461. Salt domain spacing
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Closer salt-rich domains will reduce conductivity loss during gel stretching.
Test: Measure conductivity and domain spacing under strain.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0462. Polymer backbone alignment
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Backbone alignment will increase conductivity anisotropy more at low than high water content.
Test: Measure directional conductivity across hydration levels.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0463. Gel interface roughening
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Mild interfacial roughening will reduce contact-impedance drift under repeated bending.
Test: Measure contact and bulk impedance separately.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0464. Plasticizer evaporation gradient
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Edge sealing will reduce lateral conductivity gradients during plasticizer loss.
Test: Map composition and local conductivity.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0465. Ion-pair relaxation
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Slower ion-pair relaxation will increase conductivity hysteresis during temperature ramps.
Test: Measure spectroscopy and conductivity across ramp rates.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0466. Gel compression dwell
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Long compression holds will increase post-release conductivity overshoot when ions redistribute slowly.
Test: Measure transient conductivity and thickness recovery.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0467. Multilayer salt asymmetry
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Opposite salt gradients in adjacent layers will reduce net concentration polarization.
Test: Measure concentration profiles during matched current pulses.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0468. Crosslink-size distribution
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Narrower network-mesh distributions will reduce variation in ion transit times.
Test: Compare diffusion measurements and network characterization.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0469. Gel drying orientation
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Drying perpendicular to aligned channels will preserve more ionic anisotropy than drying along them.
Test: Measure structure and directional conductivity after rehydration.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0470. Electrolyte microcrack closure
Area: Ion gels and polymer electrolytes
Type: individually drafted proposal
Hypothesis: Small compressive bias will restore conductivity across reversible gel microcracks.
Test: Image cracks while measuring local resistance.
Controls: Salt content, water content, thickness, and temperature
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0471. Porous capacitor channel orientation
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Through-thickness channels will reduce rate-dependent capacitance loss more than in-plane channels.
Test: Measure benign aqueous model capacitors over charging rates.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0472. Carbon surface aging order
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Air aging before wetting will produce different leakage drift than aging after wetting.
Test: Track surface chemistry and leakage in model capacitors.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0473. Capacitor separator waviness
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Low-amplitude separator waviness will reduce pressure-induced short-risk hotspots.
Test: Map contact pressure and leakage in low-energy test cells.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0474. Electrode thickness alternation
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Alternating thin and thick porous layers will broaden relaxation times less than a single thick layer of equal mass.
Test: Measure impedance and discharge transients.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0475. Collector contact redundancy
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Multiple small collector contacts will retain lower resistance during bending than one large contact of equal area.
Test: Cycle model electrodes and map resistance.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0476. Aqueous storage duty cycle
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Long idle intervals will increase self-discharge per stored-energy hour when slow surface reactions dominate.
Test: Measure energy recovery across matched duty schedules.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0477. Prewetting pressure cycles
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Gentle vacuum-free pressure cycling will increase accessible capacitance by removing trapped gas.
Test: Measure saturation and capacitance before and after cycling.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0478. Capacitor packaging flexibility
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Moderately compliant packaging will reduce contact-resistance growth during swelling.
Test: Track pressure and resistance in safe model devices.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0479. Pore-mouth coating depth
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Shallow hydrophilic coatings will improve charging speed more than deep coatings at equal added mass.
Test: Measure uptake and frequency-dependent capacitance.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0480. Electrode drying before assembly
Area: Electrical storage model systems
Type: individually drafted proposal
Hypothesis: Partial residual hydration will reduce initial conditioning variability compared with complete drying.
Test: Measure hydration and early-cycle response.
Controls: Active mass, voltage range, energy input, and thermal conditions
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0481. Coating defect alignment
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Aligned defects in two coating layers will accelerate corrosion more than staggered defects.
Test: Map corrosion beneath patterned low-hazard coatings.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0482. Scratch endpoint shape
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Rounded scratch endpoints will reduce localized corrosion initiation compared with pointed endpoints.
Test: Track corrosion fronts in benign salt exposure.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0483. Humidity ramp asymmetry
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Fast wetting and slow drying will cause more corrosion than the reverse schedule at equal wet duration.
Test: Measure mass change and local electrochemistry.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0484. Protective particle settling
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Preventing particle settling during coating cure will reduce spatial corrosion variability.
Test: Compare filler maps and corrosion exposure results.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0485. Galvanic spacing
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Increasing separation between dissimilar-metal contacts will delay localized attack under a thin electrolyte film.
Test: Measure current and attack location across spacing.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0486. Rust layer permeability cycling
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Repeated mild compression will increase rust-layer transport more than static compression.
Test: Measure permeability and corrosion rate in controlled model layers.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0487. Coating strain release
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Gradual strain release will close coating microcracks more effectively than abrupt release.
Test: Image cracks and measure barrier recovery.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0488. Benign inhibitor release patches
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Distributed small inhibitor reservoirs will protect isolated scratches longer than one reservoir of equal volume.
Test: Measure release and corrosion progression.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0489. Surface finish crossing
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Crosshatched polishing will produce less directional underfilm corrosion than single-direction polishing.
Test: Map corrosion front shapes.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0490. Condensate chloride redistribution
Area: Corrosion and protective surfaces
Type: individually drafted proposal
Hypothesis: Intermittent droplet shedding will create stronger local salt concentration than continuous wetting.
Test: Measure deposited salt maps and subsequent attack.
Controls: Environment chemistry, exposure time, coating thickness, and metal composition
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0491. Insulator edge thickness
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: Thicker rounded edges will reduce surface discharge variability in specialist low-energy dielectric tests.
Test: Map discharge locations under controlled voltage ramps.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0492. Dielectric pore filling sequence
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: Water entering connected pores will increase dielectric loss earlier than mass uptake predicts.
Test: Measure dielectric spectra and gravimetric uptake.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0493. Charge patch separation
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: Closely spaced opposite-charge patches will decay more slowly through external leakage than isolated patches.
Test: Map surface potentials and leakage routes.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0494. Electrode mesh pitch
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: Fine mesh electrodes will reduce dielectric-force nonuniformity at fixed open area.
Test: Measure deformation of calibrated soft dielectric films.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0495. Humidity shield vent direction
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: Downward-facing vents will reduce transient charge loss during humid airflow pulses.
Test: Measure local humidity and charge decay.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0496. Polymer orientation and charging
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: Aligned polymer chains will produce direction-dependent frictional charge transfer.
Test: Rotate sliding direction while measuring contact mechanics.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0497. Dielectric filler shell continuity
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: Continuous insulating shells will suppress leakage hotspots more than patchy shells of equal mass.
Test: Map local conduction in matched composites.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0498. Electrostatic adhesion waiting time
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: A longer field-free wait after contact will reduce pull-off hysteresis when trapped charge relaxes.
Test: Measure charge and adhesion across delays.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0499. Dust charge relaxation spread
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: A broader particle conductivity distribution will prolong ensemble charge decay tails.
Test: Measure individual charge decay and bulk potential.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0500. Dielectric layer wrinkle phase
Area: Dielectrics and electrostatics
Type: individually drafted proposal
Hypothesis: Misaligned wrinkles in adjacent dielectric layers will reduce concentrated electric strain.
Test: Map deformation under controlled low-energy fields.
Controls: Humidity, temperature, geometry, initial charge, and measurement noise
Against: The stated directional prediction is absent or reversed in independent preparations after the listed controls are matched; reject it within the tested range if confidence intervals exclude the predefined minimum effect.

0501. Modulated excitation recovery — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0502. Barrier-free reverse face — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0503. Lateral reference proximity — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0504. Porosity gradient direction — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0505. Excitation spot travel — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0506. Humidity pre-equilibration — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0507. Temperature pulse diagnosis — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0508. Edge sealing tradeoff — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0509. Host relaxation hold — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0510. Depth-resolved calibration — porous silica-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For porous silica-bound oxygen-sensitive dye, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0511. Modulated excitation recovery — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0512. Barrier-free reverse face — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0513. Lateral reference proximity — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0514. Porosity gradient direction — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0515. Excitation spot travel — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0516. Humidity pre-equilibration — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0517. Temperature pulse diagnosis — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0518. Edge sealing tradeoff — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0519. Host relaxation hold — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0520. Depth-resolved calibration — silicone-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For silicone-bound oxygen-sensitive dye, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0521. Modulated excitation recovery — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0522. Barrier-free reverse face — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0523. Lateral reference proximity — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0524. Porosity gradient direction — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0525. Excitation spot travel — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0526. Humidity pre-equilibration — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0527. Temperature pulse diagnosis — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0528. Edge sealing tradeoff — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0529. Host relaxation hold — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0530. Depth-resolved calibration — ethylcellulose-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For ethylcellulose-bound oxygen-sensitive dye, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0531. Modulated excitation recovery — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0532. Barrier-free reverse face — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0533. Lateral reference proximity — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0534. Porosity gradient direction — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0535. Excitation spot travel — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0536. Humidity pre-equilibration — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0537. Temperature pulse diagnosis — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0538. Edge sealing tradeoff — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0539. Host relaxation hold — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0540. Depth-resolved calibration — fluoropolymer-bound oxygen-sensitive dye
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-bound oxygen-sensitive dye, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0541. Modulated excitation recovery — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0542. Barrier-free reverse face — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0543. Lateral reference proximity — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0544. Porosity gradient direction — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0545. Excitation spot travel — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0546. Humidity pre-equilibration — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0547. Temperature pulse diagnosis — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0548. Edge sealing tradeoff — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0549. Host relaxation hold — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0550. Depth-resolved calibration — sol-gel oxygen-sensitive film
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For sol-gel oxygen-sensitive film, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0551. Modulated excitation recovery — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0552. Barrier-free reverse face — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0553. Lateral reference proximity — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0554. Porosity gradient direction — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0555. Excitation spot travel — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0556. Humidity pre-equilibration — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0557. Temperature pulse diagnosis — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0558. Edge sealing tradeoff — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0559. Host relaxation hold — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0560. Depth-resolved calibration — oxygen-sensitive dye on cellulose fibers
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on cellulose fibers, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0561. Modulated excitation recovery — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0562. Barrier-free reverse face — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0563. Lateral reference proximity — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0564. Porosity gradient direction — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0565. Excitation spot travel — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0566. Humidity pre-equilibration — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0567. Temperature pulse diagnosis — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0568. Edge sealing tradeoff — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0569. Host relaxation hold — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0570. Depth-resolved calibration — oxygen-sensitive dye in hydrogel beads
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in hydrogel beads, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0571. Modulated excitation recovery — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0572. Barrier-free reverse face — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0573. Lateral reference proximity — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0574. Porosity gradient direction — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0575. Excitation spot travel — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0576. Humidity pre-equilibration — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0577. Temperature pulse diagnosis — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0578. Edge sealing tradeoff — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0579. Host relaxation hold — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0580. Depth-resolved calibration — oxygen-sensitive dye on polymer microspheres
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye on polymer microspheres, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0581. Modulated excitation recovery — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0582. Barrier-free reverse face — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0583. Lateral reference proximity — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0584. Porosity gradient direction — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0585. Excitation spot travel — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0586. Humidity pre-equilibration — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0587. Temperature pulse diagnosis — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0588. Edge sealing tradeoff — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0589. Host relaxation hold — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0590. Depth-resolved calibration — oxygen-sensitive dye in a fibrous mat
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a fibrous mat, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0591. Modulated excitation recovery — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, alternating short illumination and dark intervals will reduce calibration drift relative to continuous excitation at equal absorbed photons.
Test: Measure lifetime, intensity, and oxygen calibration before and after matched light schedules.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration drift is not smaller under interrupted illumination.

0592. Barrier-free reverse face — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, exposing both faces to gas will shorten recovery more than initial response when internal oxygen gradients persist.
Test: Compare one-face and two-face exposure using independently calibrated gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Recovery gains do not exceed response gains within uncertainty.

0593. Lateral reference proximity — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, a nearby oxygen-insensitive reference patch will correct illumination drift better than a remote reference.
Test: Introduce controlled light gradients and compare recovered oxygen against an independent probe.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Nearby referencing does not reduce oxygen-estimation error.

0594. Porosity gradient direction — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, increasing porosity toward the gas-facing surface will reduce response-time dispersion compared with the reversed gradient.
Test: Prepare reversed gradients and measure lifetime response maps after gas steps.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response-time dispersion does not depend on gradient direction.

0595. Excitation spot travel — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, moving the excitation spot will preserve calibration longer than stationary excitation at equal total absorbed energy.
Test: Compare spatial bleaching and repeated gas calibrations under stationary and scanned illumination.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Calibration lifetime is no longer after accounting for local photon dose.

0596. Humidity pre-equilibration — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, slow humidity pre-equilibration will reduce oxygen-calibration hysteresis relative to abrupt conditioning.
Test: Measure oxygen response after matched final humidity reached by different paths.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Oxygen hysteresis is independent of conditioning path.

0597. Temperature pulse diagnosis — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, a small reversible temperature pulse will distinguish dye loss from reduced oxygen permeability.
Test: Create independently verified dye-loss and permeability-change samples and compare transient signatures.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Signatures fail to identify the two changes on blinded samples.

0598. Edge sealing tradeoff — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, edge sealing will reduce spatial calibration variation while lengthening recovery disproportionately near the center.
Test: Map response before and after edge sealing with a gas-permeable central face.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Spatial variation or recovery lacks the predicted position-dependent change.

0599. Host relaxation hold — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, an unloaded rest after mild flexing will restore part of the oxygen response without restoring bleached intensity.
Test: Measure lifetime calibration and intensity during mechanical recovery.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Response recovery tracks intensity recovery alone or does not occur.

0600. Depth-resolved calibration — oxygen-sensitive dye in a microporous membrane
Area: Luminescent oxygen-sensing films
Type: system-specific member of an experimental family
Hypothesis: For oxygen-sensitive dye in a microporous membrane, calibrating emission from two optical depths will detect diffusion limitation earlier than bulk intensity alone.
Test: Vary gas-step speed and compare depth-resolved signals with independent oxygen transport measurements.
Controls: Dye identity and loading, oxygen partial pressure, humidity, absorbed light, and actual film temperature. Use a dye independently established to be oxygen-sensitive and compatible with each host.
Against: Depth-resolved measurements provide no earlier reliable diffusion warning.

0601. Alternating moisture faces — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0602. End-face sealing pattern — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0603. Compression during rewetting — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0604. Notch humidity cycling — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0605. Thermal pretreatment gradient — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0606. Fiber junction lubrication — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0607. Pore blockage locality — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0608. Water uptake pause — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0609. Grain-angle mixing — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0610. Surface densification depth — balsa wood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For balsa wood, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0611. Alternating moisture faces — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0612. End-face sealing pattern — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0613. Compression during rewetting — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0614. Notch humidity cycling — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0615. Thermal pretreatment gradient — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0616. Fiber junction lubrication — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0617. Pore blockage locality — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0618. Water uptake pause — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0619. Grain-angle mixing — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0620. Surface densification depth — birch veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For birch veneer, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0621. Alternating moisture faces — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0622. End-face sealing pattern — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0623. Compression during rewetting — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0624. Notch humidity cycling — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0625. Thermal pretreatment gradient — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0626. Fiber junction lubrication — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0627. Pore blockage locality — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0628. Water uptake pause — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0629. Grain-angle mixing — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0630. Surface densification depth — cork sheet
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For cork sheet, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0631. Alternating moisture faces — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0632. End-face sealing pattern — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0633. Compression during rewetting — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0634. Notch humidity cycling — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0635. Thermal pretreatment gradient — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0636. Fiber junction lubrication — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0637. Pore blockage locality — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0638. Water uptake pause — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0639. Grain-angle mixing — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0640. Surface densification depth — bamboo strip
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bamboo strip, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0641. Alternating moisture faces — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0642. End-face sealing pattern — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0643. Compression during rewetting — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0644. Notch humidity cycling — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0645. Thermal pretreatment gradient — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0646. Fiber junction lubrication — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0647. Pore blockage locality — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0648. Water uptake pause — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0649. Grain-angle mixing — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0650. Surface densification depth — pine sapwood
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For pine sapwood, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0651. Alternating moisture faces — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0652. End-face sealing pattern — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0653. Compression during rewetting — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0654. Notch humidity cycling — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0655. Thermal pretreatment gradient — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0656. Fiber junction lubrication — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0657. Pore blockage locality — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0658. Water uptake pause — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0659. Grain-angle mixing — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0660. Surface densification depth — beech veneer
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For beech veneer, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0661. Alternating moisture faces — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0662. End-face sealing pattern — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0663. Compression during rewetting — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0664. Notch humidity cycling — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0665. Thermal pretreatment gradient — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0666. Fiber junction lubrication — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0667. Pore blockage locality — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0668. Water uptake pause — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0669. Grain-angle mixing — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0670. Surface densification depth — compressed cellulose board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For compressed cellulose board, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0671. Alternating moisture faces — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0672. End-face sealing pattern — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0673. Compression during rewetting — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0674. Notch humidity cycling — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0675. Thermal pretreatment gradient — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0676. Fiber junction lubrication — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0677. Pore blockage locality — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0678. Water uptake pause — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0679. Grain-angle mixing — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0680. Surface densification depth — flax fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For flax fiber board, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0681. Alternating moisture faces — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0682. End-face sealing pattern — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0683. Compression during rewetting — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0684. Notch humidity cycling — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0685. Thermal pretreatment gradient — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0686. Fiber junction lubrication — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0687. Pore blockage locality — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0688. Water uptake pause — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0689. Grain-angle mixing — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0690. Surface densification depth — hemp fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber board, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0691. Alternating moisture faces — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, alternating the wetted face will reduce persistent curvature compared with repeatedly wetting one face at equal water uptake.
Test: Measure curvature and spatial moisture through repeated wetting cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Persistent curvature is not smaller under alternating exposure.

0692. End-face sealing pattern — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, discontinuous end-face seals will produce larger local moisture gradients than a continuous partial-area seal.
Test: Map moisture after controlled humidity steps with matched sealed area.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Local gradients do not differ after seal permeability is measured.

0693. Compression during rewetting — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, mild compression during rewetting will increase retained shape change compared with compression after equilibration.
Test: Compare recovered dimensions and stiffness after identical peak load.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Retained shape change does not depend on loading stage.

0694. Notch humidity cycling — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, shallow notches will amplify local swelling strain more during fast than slow humidity cycles.
Test: Use digital image correlation while measuring moisture uptake.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Notch strain amplification is independent of cycle speed.

0695. Thermal pretreatment gradient — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, a shallow heat-treatment gradient will direct bending during hydration more reproducibly than a sharp treatment boundary.
Test: Map chemistry, modulus, and curvature across repeated humidity cycles.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Bending repeatability is no better with a graded treatment.

0696. Fiber junction lubrication — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, small retained amounts of a compatible nonreactive lubricant will reduce humidity-driven acoustic emission before changing bulk stiffness.
Test: Measure emission events, stiffness, and lubricant retention during cycling.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Emission reduction occurs only alongside comparable stiffness changes.

0697. Pore blockage locality — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, blocking a few large transport channels will slow drying more than distributing equal blocker mass among small channels.
Test: Image pore filling and record mass-loss curves.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Drying differences are explained by total blocked volume alone.

0698. Water uptake pause — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, a short dry pause during uptake will increase subsequent uptake variability by redistributing internal moisture.
Test: Compare restart uptake maps with uninterrupted controls.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Restart variability is unchanged after mean moisture is matched.

0699. Grain-angle mixing — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, laminating alternating small grain angles will reduce humidity-induced twist compared with a constant off-axis angle.
Test: Measure three-dimensional deformation in matched laminates.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: Twist does not decrease after adhesive effects are controlled.

0700. Surface densification depth — bagasse fiber board
Area: Wood and plant-derived porous solids
Type: system-specific member of an experimental family
Hypothesis: For bagasse fiber board, intermediate surface densification will minimize wetting-induced roughness without strongly slowing drying.
Test: Measure topography and drying across densification depths.
Controls: Dry density, grain or fiber direction, specimen size, equilibrium moisture, treatment chemistry, and actual temperature.
Against: No intermediate regime improves roughness while preserving drying rate.

0701. Solvent-front pauses — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0702. Loading footprint aspect ratio — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0703. Substrate tension — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0704. Chamber humidity history — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0705. Front curvature correction — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0706. Gradient prewetting — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0707. Repeated low-mass loading — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0708. Reversed development — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0709. Temperature ramp timing — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0710. Support contact pattern — cellulose strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose strip chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0711. Solvent-front pauses — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0712. Loading footprint aspect ratio — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0713. Substrate tension — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0714. Chamber humidity history — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0715. Front curvature correction — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0716. Gradient prewetting — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0717. Repeated low-mass loading — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0718. Reversed development — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0719. Temperature ramp timing — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0720. Support contact pattern — silica thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica thin-layer chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0721. Solvent-front pauses — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0722. Loading footprint aspect ratio — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0723. Substrate tension — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0724. Chamber humidity history — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0725. Front curvature correction — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0726. Gradient prewetting — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0727. Repeated low-mass loading — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0728. Reversed development — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0729. Temperature ramp timing — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0730. Support contact pattern — alumina thin-layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For alumina thin-layer chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0731. Solvent-front pauses — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0732. Loading footprint aspect ratio — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0733. Substrate tension — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0734. Chamber humidity history — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0735. Front curvature correction — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0736. Gradient prewetting — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0737. Repeated low-mass loading — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0738. Reversed development — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0739. Temperature ramp timing — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0740. Support contact pattern — starch-coated paper chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For starch-coated paper chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0741. Solvent-front pauses — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0742. Loading footprint aspect ratio — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0743. Substrate tension — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0744. Chamber humidity history — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0745. Front curvature correction — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0746. Gradient prewetting — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0747. Repeated low-mass loading — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0748. Reversed development — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0749. Temperature ramp timing — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0750. Support contact pattern — agarose-coated strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For agarose-coated strip chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0751. Solvent-front pauses — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0752. Loading footprint aspect ratio — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0753. Substrate tension — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0754. Chamber humidity history — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0755. Front curvature correction — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0756. Gradient prewetting — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0757. Repeated low-mass loading — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0758. Reversed development — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0759. Temperature ramp timing — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0760. Support contact pattern — cellulose acetate strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For cellulose acetate strip chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0761. Solvent-front pauses — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0762. Loading footprint aspect ratio — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0763. Substrate tension — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0764. Chamber humidity history — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0765. Front curvature correction — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0766. Gradient prewetting — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0767. Repeated low-mass loading — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0768. Reversed development — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0769. Temperature ramp timing — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0770. Support contact pattern — glass-fiber strip chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber strip chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0771. Solvent-front pauses — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0772. Loading footprint aspect ratio — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0773. Substrate tension — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0774. Chamber humidity history — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0775. Front curvature correction — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0776. Gradient prewetting — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0777. Repeated low-mass loading — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0778. Reversed development — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0779. Temperature ramp timing — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0780. Support contact pattern — silica-coated glass-fiber chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For silica-coated glass-fiber chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0781. Solvent-front pauses — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0782. Loading footprint aspect ratio — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0783. Substrate tension — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0784. Chamber humidity history — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0785. Front curvature correction — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0786. Gradient prewetting — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0787. Repeated low-mass loading — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0788. Reversed development — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0789. Temperature ramp timing — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0790. Support contact pattern — crosslinked dextran layer chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For crosslinked dextran layer chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0791. Solvent-front pauses — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, a short solvent-front pause will broaden strongly retained bands more than weakly retained bands.
Test: Interrupt flow reproducibly and image multiple independently characterized tracers.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Broadening does not depend on tracer retention.

0792. Loading footprint aspect ratio — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, a narrow transverse loading line will reduce migration-direction dispersion relative to a circular spot of equal area.
Test: Compare band variance at matched loaded mass and travel distance.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Variance is no smaller after initial footprint is included.

0793. Substrate tension — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, mild uniform tension will reduce lateral band wandering by stabilizing pore alignment.
Test: Image tracer trajectories at several non-damaging tensions.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Wandering does not decrease or is explained by changed mean front speed.

0794. Chamber humidity history — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, humidity cycling before development will alter selectivity more than mean migration speed.
Test: Measure pairwise tracer separation and front position after conditioning.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Selectivity remains unchanged once retained water is matched.

0795. Front curvature correction — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, edge reservoir wicks will flatten the advancing solvent front and reduce edge-band distortion.
Test: Compare full-width front maps with and without edge reservoirs.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Front flatness and band distortion do not improve together.

0796. Gradient prewetting — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, a shallow prewetting gradient will reduce startup fingering compared with uniform partial wetting.
Test: Map solvent fronts and tracer transport at matched initial liquid content.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Fingering is no lower after uptake rate is matched.

0797. Repeated low-mass loading — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, several dried low-mass loads will produce sharper bands than one wet load of equal solute mass.
Test: Compare initial deposits and developed band widths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Final sharpness does not improve after initial spot width is considered.

0798. Reversed development — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, reversing development direction after a short first run will expose retention hysteresis beyond simple diffusion.
Test: Track tracer displacement against a nonretained reference.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Return displacements agree with a reversible transport model.

0799. Temperature ramp timing — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, a mild temperature ramp late in development will alter late-band spacing more than the same ramp early.
Test: Measure band positions and solvent evaporation across matched ramp energies.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Spacing depends only on mean temperature and travel distance.

0800. Support contact pattern — chitosan-coated cellulose chromatography
Area: Capillary and thin-layer chromatography
Type: system-specific member of an experimental family
Hypothesis: For chitosan-coated cellulose chromatography, sparse support contacts will produce less local band distortion than continuous support under unequal heating.
Test: Map support temperature and tracer paths.
Controls: Use compatible benign tracer mixtures, a verified separating mobile phase, matched loading, layer thickness, chamber saturation, and temperature.
Against: Sparse contacts do not reduce distortion after temperature differences are measured.

0801. Inlet widening profile — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0802. Baffle gap sequence — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0803. Pulsed drain timing — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0804. Sloped floor microtexture — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0805. Split inlet phase — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0806. Wall compliance surge buffer — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0807. Bed thickness warning — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0808. Distributed outlet sampling — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0809. Tilt reversal cleanup — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0810. Quiet-zone placement — glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For glass-bead water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0811. Inlet widening profile — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0812. Baffle gap sequence — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0813. Pulsed drain timing — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0814. Sloped floor microtexture — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0815. Split inlet phase — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0816. Wall compliance surge buffer — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0817. Bed thickness warning — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0818. Distributed outlet sampling — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0819. Tilt reversal cleanup — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0820. Quiet-zone placement — cellulose-particle water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For cellulose-particle water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0821. Inlet widening profile — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0822. Baffle gap sequence — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0823. Pulsed drain timing — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0824. Sloped floor microtexture — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0825. Split inlet phase — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0826. Wall compliance surge buffer — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0827. Bed thickness warning — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0828. Distributed outlet sampling — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0829. Tilt reversal cleanup — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0830. Quiet-zone placement — starch-granule water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For starch-granule water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0831. Inlet widening profile — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0832. Baffle gap sequence — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0833. Pulsed drain timing — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0834. Sloped floor microtexture — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0835. Split inlet phase — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0836. Wall compliance surge buffer — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0837. Bed thickness warning — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0838. Distributed outlet sampling — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0839. Tilt reversal cleanup — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0840. Quiet-zone placement — rounded sand water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For rounded sand water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0841. Inlet widening profile — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0842. Baffle gap sequence — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0843. Pulsed drain timing — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0844. Sloped floor microtexture — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0845. Split inlet phase — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0846. Wall compliance surge buffer — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0847. Bed thickness warning — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0848. Distributed outlet sampling — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0849. Tilt reversal cleanup — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0850. Quiet-zone placement — angular silica water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For angular silica water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0851. Inlet widening profile — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0852. Baffle gap sequence — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0853. Pulsed drain timing — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0854. Sloped floor microtexture — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0855. Split inlet phase — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0856. Wall compliance surge buffer — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0857. Bed thickness warning — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0858. Distributed outlet sampling — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0859. Tilt reversal cleanup — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0860. Quiet-zone placement — inert polymer-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert polymer-bead water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0861. Inlet widening profile — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0862. Baffle gap sequence — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0863. Pulsed drain timing — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0864. Sloped floor microtexture — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0865. Split inlet phase — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0866. Wall compliance surge buffer — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0867. Bed thickness warning — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0868. Distributed outlet sampling — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0869. Tilt reversal cleanup — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0870. Quiet-zone placement — hollow glass-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For hollow glass-bead water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0871. Inlet widening profile — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0872. Baffle gap sequence — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0873. Pulsed drain timing — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0874. Sloped floor microtexture — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0875. Split inlet phase — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0876. Wall compliance surge buffer — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0877. Bed thickness warning — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0878. Distributed outlet sampling — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0879. Tilt reversal cleanup — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0880. Quiet-zone placement — calcium-carbonate water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0881. Inlet widening profile — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0882. Baffle gap sequence — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0883. Pulsed drain timing — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0884. Sloped floor microtexture — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0885. Split inlet phase — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0886. Wall compliance surge buffer — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0887. Bed thickness warning — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0888. Distributed outlet sampling — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0889. Tilt reversal cleanup — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0890. Quiet-zone placement — porous ceramic-bead water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-bead water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0891. Inlet widening profile — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, a gradual inlet expansion will reduce particle carryover more than an abrupt expansion at equal chamber volume.
Test: Measure outlet particle mass and velocity fields.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover is not reduced after residence time is matched.

0892. Baffle gap sequence — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, progressively widening baffle gaps will reduce resuspension during flow increases.
Test: Compare outlet transients with reversed and uniform gap sequences.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Gap order does not change resuspension at matched hydraulic work.

0893. Pulsed drain timing — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, draining settled particles during low-flow intervals will reduce losses relative to draining during high flow.
Test: Measure recovered solids and effluent concentration across schedules.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Recovery does not improve at equal drain volume.

0894. Sloped floor microtexture — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, shallow downstream grooves will reduce retained solids after a gravity-only discharge.
Test: Map residual deposits and collected mass.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Residual mass is unchanged after floor friction is measured.

0895. Split inlet phase — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, out-of-phase inlet pulses will reduce coherent recirculation and improve settling.
Test: Measure flow fields and size-resolved removal at equal mean throughput.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Improvement is absent or explained by longer residence time.

0896. Wall compliance surge buffer — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, a compliant inlet wall will reduce short-surge particle breakthrough.
Test: Measure pressure, wall motion, and outlet particles during identical surges.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Breakthrough is unchanged at matched mean flow.

0897. Bed thickness warning — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, pressure fluctuations will detect incipient resuspension before outlet turbidity rises.
Test: Track pressure spectra, bed images, and calibrated turbidity.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Pressure gives no earlier warning at a matched false-alarm rate.

0898. Distributed outlet sampling — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, many small outlets will reduce preferential particle escape compared with one equal-area outlet.
Test: Map concentration near outlets and total carryover.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Carryover does not decrease after flow uniformity is included.

0899. Tilt reversal cleanup — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, a brief small tilt reversal will release trapped solids more effectively than a constant tilt.
Test: Measure cleanup mass and subsequent effluent contamination.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Released mass is no higher or contamination eliminates the gain.

0900. Quiet-zone placement — inert fiber-fragment water suspension
Area: Settling chambers and passive particle separation
Type: system-specific member of an experimental family
Hypothesis: For inert fiber-fragment water suspension, placing a quiet zone downstream of recirculation will outperform an equal zone upstream.
Test: Compare size-dependent removal and tracer residence distributions.
Controls: Particle size distribution, loading, liquid properties, residence time, chamber volume, and actual hydraulic work. Use enclosed inert model suspensions.
Against: Zone placement has no independent effect on removal.

0901. Bend spacing resonance — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0902. Twist before bending — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0903. Clamp edge compliance — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0904. Thermal gradient direction — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0905. Coating swelling delay — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0906. Alternating curvature recovery — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0907. Localized heating identification — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0908. Input diffuser stability — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0909. Axial preload window — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0910. Distributed support spacing — large-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For large-core silica optical fiber, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0911. Bend spacing resonance — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0912. Twist before bending — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0913. Clamp edge compliance — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0914. Thermal gradient direction — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0915. Coating swelling delay — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0916. Alternating curvature recovery — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0917. Localized heating identification — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0918. Input diffuser stability — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0919. Axial preload window — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0920. Distributed support spacing — small-core silica optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For small-core silica optical fiber, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0921. Bend spacing resonance — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0922. Twist before bending — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0923. Clamp edge compliance — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0924. Thermal gradient direction — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0925. Coating swelling delay — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0926. Alternating curvature recovery — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0927. Localized heating identification — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0928. Input diffuser stability — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0929. Axial preload window — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0930. Distributed support spacing — multimode polymer optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For multimode polymer optical fiber, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0931. Bend spacing resonance — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0932. Twist before bending — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0933. Clamp edge compliance — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0934. Thermal gradient direction — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0935. Coating swelling delay — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0936. Alternating curvature recovery — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0937. Localized heating identification — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0938. Input diffuser stability — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0939. Axial preload window — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0940. Distributed support spacing — fluoropolymer-clad optical fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For fluoropolymer-clad optical fiber, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0941. Bend spacing resonance — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0942. Twist before bending — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0943. Clamp edge compliance — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0944. Thermal gradient direction — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0945. Coating swelling delay — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0946. Alternating curvature recovery — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0947. Localized heating identification — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0948. Input diffuser stability — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0949. Axial preload window — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0950. Distributed support spacing — silicone optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For silicone optical waveguide, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0951. Bend spacing resonance — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0952. Twist before bending — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0953. Clamp edge compliance — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0954. Thermal gradient direction — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0955. Coating swelling delay — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0956. Alternating curvature recovery — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0957. Localized heating identification — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0958. Input diffuser stability — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0959. Axial preload window — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0960. Distributed support spacing — hydrogel optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hydrogel optical waveguide, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0961. Bend spacing resonance — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0962. Twist before bending — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0963. Clamp edge compliance — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0964. Thermal gradient direction — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0965. Coating swelling delay — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0966. Alternating curvature recovery — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0967. Localized heating identification — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0968. Input diffuser stability — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0969. Axial preload window — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0970. Distributed support spacing — liquid-core optical waveguide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For liquid-core optical waveguide, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0971. Bend spacing resonance — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0972. Twist before bending — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0973. Clamp edge compliance — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0974. Thermal gradient direction — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0975. Coating swelling delay — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0976. Alternating curvature recovery — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0977. Localized heating identification — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0978. Input diffuser stability — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0979. Axial preload window — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0980. Distributed support spacing — hollow polymer light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For hollow polymer light guide, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0981. Bend spacing resonance — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0982. Twist before bending — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0983. Clamp edge compliance — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0984. Thermal gradient direction — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0985. Coating swelling delay — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0986. Alternating curvature recovery — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0987. Localized heating identification — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0988. Input diffuser stability — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0989. Axial preload window — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

0990. Distributed support spacing — elastomer-clad glass fiber
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For elastomer-clad glass fiber, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

0991. Bend spacing resonance — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, periodic small bends will produce sharper wavelength-dependent losses than randomly spaced bends of equal curvature distribution.
Test: Measure transmission spectra across controlled bend patterns.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss spectra are no sharper after launch variability is controlled.

0992. Twist before bending — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, pre-twist will change bending-loss hysteresis more than straight-guide attenuation.
Test: Measure loss during bend cycles at several pre-twists.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Hysteresis changes are absent or track baseline attenuation alone.

0993. Clamp edge compliance — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, soft clamp edges will reduce irreversible optical loss after repeated handling.
Test: Measure transmission and local strain through clamping cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Loss accumulation is unchanged after clamp pressure is matched.

0994. Thermal gradient direction — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, reversing a lateral thermal gradient will reverse the dominant output-pattern distortion.
Test: Record output fields while reversing independently mapped temperature gradients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Distortion does not reverse with the gradient.

0995. Coating swelling delay — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, a swelling outer coating will produce delayed attenuation after humidity changes.
Test: Measure coating dimensions, humidity, and transmission transients.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Attenuation follows immediate optical temperature shifts rather than swelling.

0996. Alternating curvature recovery — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, alternating bend direction will reduce residual output-pattern drift relative to repeated same-direction bending.
Test: Compare output images at equal strain cycles.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Residual drift is no smaller after return geometry is matched.

0997. Localized heating identification — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, two-wavelength transmission will distinguish localized heating from a small bend more accurately than one wavelength.
Test: Apply independently calibrated perturbations and classify blinded trials.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Two wavelengths do not improve classification at matched photon counts.

0998. Input diffuser stability — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, a weak input diffuser will reduce handling-induced intensity variation at a cost in mean throughput.
Test: Measure transmission statistics during controlled connector motion.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Variability does not decrease or is explained solely by lower received light.

0999. Axial preload window — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, moderate axial preload will minimize vibration-induced transmission noise.
Test: Sweep preload while recording motion and optical noise.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: No reproducible noise minimum remains after vibration amplitude is included.

1000. Distributed support spacing — cellulose-derived flexible light guide
Area: Optical fibers and flexible waveguides
Type: system-specific member of an experimental family
Hypothesis: For cellulose-derived flexible light guide, graded support spacing will suppress narrow mechanical noise peaks more than uniform support spacing.
Test: Measure vibration spectra and optical intensity at equal support count.
Controls: Wavelength, launch conditions, length, temperature, initial attenuation, and actual bend geometry. Verify optical guidance in each specimen before testing.
Against: Peak optical noise is not reduced within the specified frequency range.

1001. Gas pulse recovery — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1002. Flow direction switching — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1003. Support mesh offset — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1004. Humidity condensate threshold — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1005. Pressure ramp wetting — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1006. Surface rinse direction — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1007. Membrane tension balance — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1008. Pore-mouth deposit placement — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1009. Gas channel taper — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1010. Liquid interruption memory — microporous polypropylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polypropylene gas-transfer sheet, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1011. Gas pulse recovery — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1012. Flow direction switching — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1013. Support mesh offset — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1014. Humidity condensate threshold — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1015. Pressure ramp wetting — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1016. Surface rinse direction — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1017. Membrane tension balance — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1018. Pore-mouth deposit placement — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1019. Gas channel taper — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1020. Liquid interruption memory — microporous polyethylene gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For microporous polyethylene gas-transfer sheet, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1021. Gas pulse recovery — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1022. Flow direction switching — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1023. Support mesh offset — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1024. Humidity condensate threshold — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1025. Pressure ramp wetting — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1026. Surface rinse direction — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1027. Membrane tension balance — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1028. Pore-mouth deposit placement — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1029. Gas channel taper — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1030. Liquid interruption memory — PTFE gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PTFE gas-transfer sheet, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1031. Gas pulse recovery — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1032. Flow direction switching — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1033. Support mesh offset — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1034. Humidity condensate threshold — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1035. Pressure ramp wetting — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1036. Surface rinse direction — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1037. Membrane tension balance — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1038. Pore-mouth deposit placement — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1039. Gas channel taper — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1040. Liquid interruption memory — PVDF gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For PVDF gas-transfer sheet, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1041. Gas pulse recovery — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1042. Flow direction switching — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1043. Support mesh offset — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1044. Humidity condensate threshold — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1045. Pressure ramp wetting — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1046. Surface rinse direction — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1047. Membrane tension balance — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1048. Pore-mouth deposit placement — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1049. Gas channel taper — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1050. Liquid interruption memory — silicone-coated porous gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For silicone-coated porous gas-transfer sheet, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1051. Gas pulse recovery — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1052. Flow direction switching — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1053. Support mesh offset — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1054. Humidity condensate threshold — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1055. Pressure ramp wetting — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1056. Surface rinse direction — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1057. Membrane tension balance — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1058. Pore-mouth deposit placement — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1059. Gas channel taper — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1060. Liquid interruption memory — hydrophobic ceramic gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic ceramic gas-transfer sheet, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1061. Gas pulse recovery — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1062. Flow direction switching — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1063. Support mesh offset — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1064. Humidity condensate threshold — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1065. Pressure ramp wetting — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1066. Surface rinse direction — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1067. Membrane tension balance — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1068. Pore-mouth deposit placement — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1069. Gas channel taper — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1070. Liquid interruption memory — wax-treated cellulose gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For wax-treated cellulose gas-transfer sheet, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1071. Gas pulse recovery — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1072. Flow direction switching — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1073. Support mesh offset — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1074. Humidity condensate threshold — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1075. Pressure ramp wetting — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1076. Surface rinse direction — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1077. Membrane tension balance — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1078. Pore-mouth deposit placement — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1079. Gas channel taper — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1080. Liquid interruption memory — hydrophobic glass-fiber gas-transfer sheet
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic glass-fiber gas-transfer sheet, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1081. Gas pulse recovery — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1082. Flow direction switching — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1083. Support mesh offset — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1084. Humidity condensate threshold — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1085. Pressure ramp wetting — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1086. Surface rinse direction — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1087. Membrane tension balance — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1088. Pore-mouth deposit placement — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1089. Gas channel taper — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1090. Liquid interruption memory — hydrophobic polymer hollow fiber
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic polymer hollow fiber, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1091. Gas pulse recovery — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, short gas-pressure rests will restore transfer after reversible pore flooding.
Test: Measure oxygen flux and wetted pore fraction during repeated pressure cycles.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux does not recover or recovery occurs without reduced flooding.

1092. Flow direction switching — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, alternating liquid-flow direction will reduce spatial transfer nonuniformity.
Test: Map oxygen uptake along the membrane under equal pumping work.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Nonuniformity is unchanged after flow distribution is matched.

1093. Support mesh offset — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, offset support meshes will reduce blocked transfer area compared with aligned meshes.
Test: Measure local flux and deformation at equal support density.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Offsetting does not improve usable transfer area.

1094. Humidity condensate threshold — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, a gas-side humidity gradient will create localized transfer loss before bulk condensation appears.
Test: Map humidity, local flux, and condensate images.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux loss begins only with visible bulk condensation.

1095. Pressure ramp wetting — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, a slower liquid-pressure ramp will increase wetting penetration at the same maximum pressure.
Test: Measure wetted area and retained liquid after ramps.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Wetting is independent of ramp duration.

1096. Surface rinse direction — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, tangential rinsing will restore flux with less liquid intrusion than normal rinsing.
Test: Compare flux recovery and liquid breakthrough after controlled benign fouling.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Tangential rinsing has no recovery-versus-intrusion advantage.

1097. Membrane tension balance — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, intermediate tension will minimize flux variability caused by flow-induced flutter.
Test: Measure membrane motion and flux at several tensions.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Flux variability lacks a reproducible intermediate minimum.

1098. Pore-mouth deposit placement — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, deposits at pore entrances will reduce gas transfer more than equal deposits on pore walls.
Test: Use compatible inert deposits and characterize their location.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer loss follows total deposited mass alone.

1099. Gas channel taper — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, a taper matched to gas consumption will flatten the longitudinal transfer profile.
Test: Compare oxygen-transfer maps in tapered and constant channels.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Transfer uniformity is no better after pressure differences are included.

1100. Liquid interruption memory — hydrophobic silica-coated mesh
Area: Hydrophobic gas-transfer membranes
Type: system-specific member of an experimental family
Hypothesis: For hydrophobic silica-coated mesh, brief liquid-flow interruptions will leave a longer flux memory when surface adsorption is stronger.
Test: Measure restart flux and independent benign-solute adsorption.
Controls: Use nonreactive air-water oxygen transfer, verified liquid exclusion, equal active area, temperature, gas pressure, and measured liquid-side mixing.
Against: Memory duration is unrelated to adsorption after mixing is controlled.

1101. Strain dwell conditioning — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1102. Lead orientation sensitivity — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1103. Compression release staging — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1104. Thermal compensation patch — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1105. Filler-free surface skin — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1106. Strain direction alternation — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1107. Microtexture pressure distribution — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1108. Preload relaxation diagnosis — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1109. Localized conductor bridges — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1110. Measurement current scheduling — carbon-black silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black silicone composite, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1111. Strain dwell conditioning — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1112. Lead orientation sensitivity — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1113. Compression release staging — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1114. Thermal compensation patch — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1115. Filler-free surface skin — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1116. Strain direction alternation — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1117. Microtexture pressure distribution — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1118. Preload relaxation diagnosis — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1119. Localized conductor bridges — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1120. Measurement current scheduling — graphite silicone composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite silicone composite, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1121. Strain dwell conditioning — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1122. Lead orientation sensitivity — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1123. Compression release staging — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1124. Thermal compensation patch — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1125. Filler-free surface skin — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1126. Strain direction alternation — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1127. Microtexture pressure distribution — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1128. Preload relaxation diagnosis — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1129. Localized conductor bridges — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1130. Measurement current scheduling — carbon-fiber elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-fiber elastomer composite, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1131. Strain dwell conditioning — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1132. Lead orientation sensitivity — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1133. Compression release staging — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1134. Thermal compensation patch — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1135. Filler-free surface skin — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1136. Strain direction alternation — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1137. Microtexture pressure distribution — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1138. Preload relaxation diagnosis — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1139. Localized conductor bridges — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1140. Measurement current scheduling — conductive polymer hydrogel
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive polymer hydrogel, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1141. Strain dwell conditioning — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1142. Lead orientation sensitivity — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1143. Compression release staging — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1144. Thermal compensation patch — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1145. Filler-free surface skin — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1146. Strain direction alternation — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1147. Microtexture pressure distribution — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1148. Preload relaxation diagnosis — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1149. Localized conductor bridges — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1150. Measurement current scheduling — graphite polyurethane composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphite polyurethane composite, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1151. Strain dwell conditioning — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1152. Lead orientation sensitivity — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1153. Compression release staging — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1154. Thermal compensation patch — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1155. Filler-free surface skin — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1156. Strain direction alternation — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1157. Microtexture pressure distribution — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1158. Preload relaxation diagnosis — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1159. Localized conductor bridges — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1160. Measurement current scheduling — carbon-black natural-rubber composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-black natural-rubber composite, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1161. Strain dwell conditioning — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1162. Lead orientation sensitivity — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1163. Compression release staging — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1164. Thermal compensation patch — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1165. Filler-free surface skin — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1166. Strain direction alternation — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1167. Microtexture pressure distribution — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1168. Preload relaxation diagnosis — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1169. Localized conductor bridges — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1170. Measurement current scheduling — carbon-coated cellulose foam
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-coated cellulose foam, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1171. Strain dwell conditioning — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1172. Lead orientation sensitivity — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1173. Compression release staging — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1174. Thermal compensation patch — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1175. Filler-free surface skin — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1176. Strain direction alternation — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1177. Microtexture pressure distribution — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1178. Preload relaxation diagnosis — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1179. Localized conductor bridges — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1180. Measurement current scheduling — graphene-platelet elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For graphene-platelet elastomer composite, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1181. Strain dwell conditioning — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1182. Lead orientation sensitivity — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1183. Compression release staging — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1184. Thermal compensation patch — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1185. Filler-free surface skin — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1186. Strain direction alternation — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1187. Microtexture pressure distribution — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1188. Preload relaxation diagnosis — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1189. Localized conductor bridges — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1190. Measurement current scheduling — carbon-filled thermoplastic elastomer
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For carbon-filled thermoplastic elastomer, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1191. Strain dwell conditioning — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, several short strain holds will reduce later resistance hysteresis more than one long hold of equal duration.
Test: Measure resistance-strain loops and recovery after matched conditioning.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Hysteresis reduction is no greater with repeated holds.

1192. Lead orientation sensitivity — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, diagonal voltage contacts will detect shear-induced network changes more strongly than axial contacts.
Test: Measure multi-terminal resistance during calibrated shear.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Diagonal contacts provide no greater shear signal after baseline resistance is normalized.

1193. Compression release staging — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, staged unloading will reduce resistance overshoot compared with abrupt unloading.
Test: Record thickness and resistance transients after identical compression.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Overshoot is unchanged once mechanical recovery is included.

1194. Thermal compensation patch — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, an unloaded adjacent reference patch will correct thermal drift during deformation.
Test: Independently vary temperature and strain and compare corrected readings.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Reference correction does not reduce strain-estimation error.

1195. Filler-free surface skin — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, a thin insulating skin will reduce humidity-driven resistance drift while preserving strain response.
Test: Measure humidity and strain calibration across skin thicknesses.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift reduction requires comparable loss of strain sensitivity.

1196. Strain direction alternation — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, alternating tension and shear will reveal network damage earlier than tension cycles alone.
Test: Track resistance tensors and independent microscopic damage.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Electrical warning does not precede damage indicators from tension alone.

1197. Microtexture pressure distribution — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, rounded surface domes will reduce pressure-signal variability relative to sharp pyramids.
Test: Measure pressure maps and repeatability under repeated contact.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Variability is not reduced after contact area is matched.

1198. Preload relaxation diagnosis — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, resistance relaxation under fixed preload will predict subsequent calibration drift.
Test: Compare prerecording relaxation with independently measured later drift across specimens.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Relaxation fails to predict drift on held-out specimens.

1199. Localized conductor bridges — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, sparse highly conductive bridges will reduce open-circuit failures without eliminating local strain sensitivity.
Test: Map resistance and strain through fatigue cycles.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Bridges provide no lifetime gain at matched usable sensitivity.

1200. Measurement current scheduling — conductive carbon aerogel-elastomer composite
Area: Piezoresistive soft composites
Type: system-specific member of an experimental family
Hypothesis: For conductive carbon aerogel-elastomer composite, intermittent sensing current will reduce self-heating drift relative to continuous sensing at equal data precision.
Test: Measure temperature and resistance with matched noise levels.
Controls: Filler fraction, initial resistance, dimensions, temperature, strain rate, contact resistance, and measured mechanical strain.
Against: Drift is unchanged after actual dissipated energy is included.

1201. Field ramp order — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1202. Crosswise field pulses — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1203. Wall magnetic roughness — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1204. Chain age and yielding — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1205. Sedimentation field rotation — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1206. Oscillatory shear phase — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1207. Field-free recovery geometry — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1208. Particle softness coupling — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1209. Magnetic gradient placement — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1210. Small-signal structural probe — iron-microparticle silicone-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-microparticle silicone-oil suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1211. Field ramp order — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1212. Crosswise field pulses — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1213. Wall magnetic roughness — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1214. Chain age and yielding — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1215. Sedimentation field rotation — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1216. Oscillatory shear phase — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1217. Field-free recovery geometry — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1218. Particle softness coupling — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1219. Magnetic gradient placement — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1220. Small-signal structural probe — carbonyl-iron mineral-oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For carbonyl-iron mineral-oil suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1221. Field ramp order — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1222. Crosswise field pulses — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1223. Wall magnetic roughness — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1224. Chain age and yielding — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1225. Sedimentation field rotation — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1226. Oscillatory shear phase — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1227. Field-free recovery geometry — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1228. Particle softness coupling — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1229. Magnetic gradient placement — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1230. Small-signal structural probe — magnetite water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite water suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1231. Field ramp order — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1232. Crosswise field pulses — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1233. Wall magnetic roughness — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1234. Chain age and yielding — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1235. Sedimentation field rotation — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1236. Oscillatory shear phase — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1237. Field-free recovery geometry — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1238. Particle softness coupling — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1239. Magnetic gradient placement — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1240. Small-signal structural probe — magnetic-bead glycerol suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic-bead glycerol suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1241. Field ramp order — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1242. Crosswise field pulses — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1243. Wall magnetic roughness — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1244. Chain age and yielding — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1245. Sedimentation field rotation — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1246. Oscillatory shear phase — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1247. Field-free recovery geometry — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1248. Particle softness coupling — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1249. Magnetic gradient placement — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1250. Small-signal structural probe — iron-coated glass-bead oil suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-coated glass-bead oil suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1251. Field ramp order — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1252. Crosswise field pulses — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1253. Wall magnetic roughness — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1254. Chain age and yielding — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1255. Sedimentation field rotation — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1256. Oscillatory shear phase — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1257. Field-free recovery geometry — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1258. Particle softness coupling — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1259. Magnetic gradient placement — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1260. Small-signal structural probe — magnetic cellulose-bead water suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic cellulose-bead water suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1261. Field ramp order — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1262. Crosswise field pulses — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1263. Wall magnetic roughness — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1264. Chain age and yielding — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1265. Sedimentation field rotation — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1266. Oscillatory shear phase — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1267. Field-free recovery geometry — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1268. Particle softness coupling — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1269. Magnetic gradient placement — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1270. Small-signal structural probe — magnetite hydrogel-bead suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite hydrogel-bead suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1271. Field ramp order — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1272. Crosswise field pulses — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1273. Wall magnetic roughness — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1274. Chain age and yielding — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1275. Sedimentation field rotation — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1276. Oscillatory shear phase — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1277. Field-free recovery geometry — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1278. Particle softness coupling — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1279. Magnetic gradient placement — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1280. Small-signal structural probe — iron-particle grease
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For iron-particle grease, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1281. Field ramp order — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1282. Crosswise field pulses — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1283. Wall magnetic roughness — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1284. Chain age and yielding — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1285. Sedimentation field rotation — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1286. Oscillatory shear phase — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1287. Field-free recovery geometry — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1288. Particle softness coupling — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1289. Magnetic gradient placement — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1290. Small-signal structural probe — magnetic polymer-microsphere suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetic polymer-microsphere suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1291. Field ramp order — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, a slow field increase followed by rapid decrease will leave more residual structure than the reversed ramp order.
Test: Measure rheology and particle structure after matched field exposure.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Residual structure is independent of ramp order.

1292. Crosswise field pulses — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, brief crosswise field pulses will accelerate breakup of flow-aligned chains.
Test: Image chains and measure stress recovery at equal field energy.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Breakup and recovery are no faster than without crosswise pulses.

1293. Wall magnetic roughness — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, weakly patterned magnetic walls will reduce shear localization relative to uniform walls.
Test: Map velocity profiles and local particle concentration.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Localization is unchanged after wall slip is accounted for.

1294. Chain age and yielding — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, longer field-rest periods will broaden the distribution of initial yielding events.
Test: Record stress fluctuations after controlled structure-building times.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Yield-event distributions do not broaden with structure age.

1295. Sedimentation field rotation — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, slow field rotation will reduce long-term concentration gradients without vigorous bulk mixing.
Test: Measure vertical concentration and mechanical power.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Gradients persist or apparent gains require substantial bulk stirring.

1296. Oscillatory shear phase — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, synchronizing field maxima with low shear will increase cycle-averaged stiffness per field exposure.
Test: Measure viscoelastic response across field-shear phase offsets.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No phase-dependent stiffness advantage is reproducible.

1297. Field-free recovery geometry — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, wider gaps will recover baseline viscosity more slowly after field removal.
Test: Compare rheology and chain breakup across gap widths.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Recovery is gap-independent after wall effects are measured.

1298. Particle softness coupling — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, adding a small compatible soft-particle fraction will reduce brittle chain-collapse events.
Test: Measure stress drops and structural rearrangements.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Collapse statistics do not change at matched overall solid fraction.

1299. Magnetic gradient placement — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, placing a weak field gradient near the outlet will increase concentration fluctuations more than near the inlet.
Test: Map concentration under reversed gradient placement.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: Placement effects vanish after total particle retention is matched.

1300. Small-signal structural probe — magnetite-coated silica suspension
Area: Magnetic-particle rheology
Type: system-specific member of an experimental family
Hypothesis: For magnetite-coated silica suspension, low-amplitude rheological probing will identify residual chains before mean viscosity changes significantly.
Test: Compare probe response with microscopy after field cycling.
Controls: Particle loading, size distribution, carrier viscosity, magnetic field, temperature, and actual shear history. Use enclosed compatible suspensions.
Against: No earlier chain detection occurs at matched false-alarm rate.

1301. Pulse grouping — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1302. Opposed beam timing — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1303. Contact footprint rotation — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1304. Frequency hopping — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1305. Rest interval pinning — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1306. Subthreshold conditioning — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1307. Two-drop collision control — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1308. Acoustic reflection guard — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1309. Evaporation compensation — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1310. Vertical motion precursor — water droplet on silica-coated piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on silica-coated piezoelectric substrate, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1311. Pulse grouping — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1312. Opposed beam timing — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1313. Contact footprint rotation — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1314. Frequency hopping — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1315. Rest interval pinning — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1316. Subthreshold conditioning — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1317. Two-drop collision control — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1318. Acoustic reflection guard — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1319. Evaporation compensation — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1320. Vertical motion precursor — glycerol-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For glycerol-water droplet on piezoelectric substrate, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1321. Pulse grouping — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1322. Opposed beam timing — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1323. Contact footprint rotation — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1324. Frequency hopping — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1325. Rest interval pinning — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1326. Subthreshold conditioning — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1327. Two-drop collision control — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1328. Acoustic reflection guard — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1329. Evaporation compensation — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1330. Vertical motion precursor — saline droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For saline droplet on protected piezoelectric substrate, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1331. Pulse grouping — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1332. Opposed beam timing — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1333. Contact footprint rotation — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1334. Frequency hopping — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1335. Rest interval pinning — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1336. Subthreshold conditioning — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1337. Two-drop collision control — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1338. Acoustic reflection guard — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1339. Evaporation compensation — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1340. Vertical motion precursor — sucrose-water droplet on piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For sucrose-water droplet on piezoelectric substrate, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1341. Pulse grouping — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1342. Opposed beam timing — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1343. Contact footprint rotation — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1344. Frequency hopping — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1345. Rest interval pinning — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1346. Subthreshold conditioning — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1347. Two-drop collision control — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1348. Acoustic reflection guard — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1349. Evaporation compensation — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1350. Vertical motion precursor — buffer droplet on protected piezoelectric substrate
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For buffer droplet on protected piezoelectric substrate, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1351. Pulse grouping — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1352. Opposed beam timing — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1353. Contact footprint rotation — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1354. Frequency hopping — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1355. Rest interval pinning — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1356. Subthreshold conditioning — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1357. Two-drop collision control — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1358. Acoustic reflection guard — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1359. Evaporation compensation — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1360. Vertical motion precursor — water droplet on fluoropolymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on fluoropolymer-coated acoustic chip, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1361. Pulse grouping — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1362. Opposed beam timing — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1363. Contact footprint rotation — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1364. Frequency hopping — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1365. Rest interval pinning — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1366. Subthreshold conditioning — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1367. Two-drop collision control — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1368. Acoustic reflection guard — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1369. Evaporation compensation — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1370. Vertical motion precursor — water droplet on polymer-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on polymer-coated acoustic chip, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1371. Pulse grouping — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1372. Opposed beam timing — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1373. Contact footprint rotation — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1374. Frequency hopping — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1375. Rest interval pinning — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1376. Subthreshold conditioning — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1377. Two-drop collision control — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1378. Acoustic reflection guard — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1379. Evaporation compensation — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1380. Vertical motion precursor — water droplet on grooved acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on grooved acoustic chip, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1381. Pulse grouping — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1382. Opposed beam timing — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1383. Contact footprint rotation — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1384. Frequency hopping — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1385. Rest interval pinning — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1386. Subthreshold conditioning — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1387. Two-drop collision control — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1388. Acoustic reflection guard — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1389. Evaporation compensation — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1390. Vertical motion precursor — water droplet on patterned-wettability acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on patterned-wettability acoustic chip, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1391. Pulse grouping — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, grouped short acoustic pulses will reduce heating per net transported distance.
Test: Measure droplet displacement and temperature for matched travel tasks.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Heating is no lower once delivered acoustic energy is included.

1392. Opposed beam timing — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, alternating opposed beams will improve internal mixing while limiting net motion.
Test: Map tracer mixing and droplet center position.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Mixing gains require proportionate extra translation or heating.

1393. Contact footprint rotation — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, rotating an elongated footprint relative to propagation will shift the movement threshold.
Test: Measure threshold power at several verified footprint angles.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Threshold is angle-independent after contact-line length is included.

1394. Frequency hopping — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, switching among nearby acoustic frequencies will reduce persistent unmixed regions.
Test: Image tracer concentration at equal input energy and duration.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Residual unmixed volume is no lower than single-frequency control.

1395. Rest interval pinning — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, longer rests between pulses will increase restart power when contact-line aging dominates.
Test: Measure restart thresholds and line motion across rest times.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Restart power does not depend on rest after evaporation is corrected.

1396. Subthreshold conditioning — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, weak acoustic conditioning will reduce variability of the next transport event.
Test: Compare displacement distributions after conditioning and silent controls.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Variability is unchanged at matched temperature and volume.

1397. Two-drop collision control — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, staggered acoustic pulses will narrow collision-position variability of matched droplet pairs.
Test: Track pair trajectories and collision positions.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Position variance is not reduced after launch timing is controlled.

1398. Acoustic reflection guard — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, an absorbing boundary will reduce trajectory curvature caused by reflected waves.
Test: Map acoustic fields and droplet paths with matched boundaries.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Curvature persists independently of reflected-wave amplitude.

1399. Evaporation compensation — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, adjusting pulse duration using optically measured volume will stabilize transport distance during slow evaporation.
Test: Compare calibrated adaptive and fixed schedules on held-out runs.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Distance error is no lower after equal sensing time is counted.

1400. Vertical motion precursor — water droplet on thin hydrogel-coated acoustic chip
Area: Surface-acoustic-wave droplet handling
Type: system-specific member of an experimental family
Hypothesis: For water droplet on thin hydrogel-coated acoustic chip, increased vertical shape oscillation will precede irregular horizontal transport.
Test: Measure three-dimensional droplet motion across increasing acoustic power.
Controls: Droplet volume, actual acoustic power, contact angle, temperature, waveform, and substrate response. Use specialist acoustic equipment and compatible liquids.
Against: Vertical oscillations provide no advance warning of trajectory errors.

1401. Nucleation-window interruption — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1402. Weak rotational mixing — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1403. Droplet depth — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1404. Seed delivery spread — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1405. Protein surface adsorption — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1406. Temperature-cycle asymmetry — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1407. Microgravity analogue limits — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1408. Precipitant front width — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1409. Growth-surface rest — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1410. Optical precursor timing — purified hen-egg lysozyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified hen-egg lysozyme crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1411. Nucleation-window interruption — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1412. Weak rotational mixing — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1413. Droplet depth — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1414. Seed delivery spread — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1415. Protein surface adsorption — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1416. Temperature-cycle asymmetry — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1417. Microgravity analogue limits — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1418. Precipitant front width — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1419. Growth-surface rest — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1420. Optical precursor timing — purified thaumatin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified thaumatin crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1421. Nucleation-window interruption — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1422. Weak rotational mixing — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1423. Droplet depth — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1424. Seed delivery spread — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1425. Protein surface adsorption — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1426. Temperature-cycle asymmetry — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1427. Microgravity analogue limits — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1428. Precipitant front width — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1429. Growth-surface rest — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1430. Optical precursor timing — purified glucose-isomerase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified glucose-isomerase crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1431. Nucleation-window interruption — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1432. Weak rotational mixing — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1433. Droplet depth — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1434. Seed delivery spread — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1435. Protein surface adsorption — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1436. Temperature-cycle asymmetry — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1437. Microgravity analogue limits — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1438. Precipitant front width — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1439. Growth-surface rest — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1440. Optical precursor timing — purified plant urease crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified plant urease crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1441. Nucleation-window interruption — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1442. Weak rotational mixing — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1443. Droplet depth — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1444. Seed delivery spread — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1445. Protein surface adsorption — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1446. Temperature-cycle asymmetry — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1447. Microgravity analogue limits — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1448. Precipitant front width — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1449. Growth-surface rest — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1450. Optical precursor timing — purified catalase crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified catalase crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1451. Nucleation-window interruption — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1452. Weak rotational mixing — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1453. Droplet depth — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1454. Seed delivery spread — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1455. Protein surface adsorption — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1456. Temperature-cycle asymmetry — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1457. Microgravity analogue limits — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1458. Precipitant front width — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1459. Growth-surface rest — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1460. Optical precursor timing — purified ferritin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified ferritin crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1461. Nucleation-window interruption — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1462. Weak rotational mixing — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1463. Droplet depth — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1464. Seed delivery spread — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1465. Protein surface adsorption — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1466. Temperature-cycle asymmetry — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1467. Microgravity analogue limits — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1468. Precipitant front width — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1469. Growth-surface rest — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1470. Optical precursor timing — purified concanavalin-A crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified concanavalin-A crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1471. Nucleation-window interruption — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1472. Weak rotational mixing — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1473. Droplet depth — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1474. Seed delivery spread — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1475. Protein surface adsorption — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1476. Temperature-cycle asymmetry — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1477. Microgravity analogue limits — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1478. Precipitant front width — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1479. Growth-surface rest — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1480. Optical precursor timing — purified nonhuman insulin crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman insulin crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1481. Nucleation-window interruption — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1482. Weak rotational mixing — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1483. Droplet depth — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1484. Seed delivery spread — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1485. Protein surface adsorption — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1486. Temperature-cycle asymmetry — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1487. Microgravity analogue limits — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1488. Precipitant front width — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1489. Growth-surface rest — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1490. Optical precursor timing — purified nonpathogenic bacterial enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial enzyme crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1491. Nucleation-window interruption — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, a brief return toward undersaturation before visible crystals appear will reduce crystal count more than final crystal mass.
Test: Image nucleation and weigh or quantify final crystalline protein.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal count and mass change proportionally or not at all.

1492. Weak rotational mixing — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, slow rotation during early growth will reduce face-to-face growth-rate variation.
Test: Image crystal faces while measuring actual mixing and temperature.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Face-rate variation is unchanged after crystal orientation is controlled.

1493. Droplet depth — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, shallow drops will show less vertical variation in crystal morphology than deeper drops.
Test: Map crystal positions and shapes at equal solution volume using varied footprints.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Morphology variation does not depend on depth after evaporation is matched.

1494. Seed delivery spread — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, distributing a fixed seed number across several points will narrow final crystal-size variation.
Test: Track seeds and grown crystals in matched chambers.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Size variation is unchanged after seed-size distribution is included.

1495. Protein surface adsorption — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, nonbinding chamber coatings will shorten induction-time tails by reducing protein loss.
Test: Measure soluble protein and nucleation distributions with validated nonbinding coatings.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Induction tails persist independently of measured surface loss.

1496. Temperature-cycle asymmetry — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, slow cooling with fast partial reheating will favor fewer larger crystals than symmetric cycles.
Test: Measure size and diffraction quality at matched final yield.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Crystal number and size show no predicted shift.

1497. Microgravity analogue limits — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, density-matched suppression of convection will reduce growth striations without requiring actual spaceflight.
Test: Use a compatible validated density modifier and measure flow, structure, and solubility.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Striation reduction is explained solely by changed solubility or viscosity.

1498. Precipitant front width — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, a broader diffusion-generated precipitant front will increase the spatial width of the crystal-forming zone.
Test: Map concentration and nucleation locations.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: The crystal zone does not widen after local supersaturation is measured.

1499. Growth-surface rest — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, short solution-exchange rests will reduce trapped liquid inclusions during continued growth.
Test: Image inclusions and growth rates with sham-exchange controls.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Inclusion reduction disappears when mean growth rate is matched.

1500. Optical precursor timing — purified model fungal enzyme crystallization
Area: Benign protein crystallization models
Type: system-specific member of an experimental family
Hypothesis: For purified model fungal enzyme crystallization, increasing low-angle scattering will predict nucleation before visible crystals more reliably than turbidity alone.
Test: Record scattering and turbidity prospectively and validate predicted induction times.
Controls: Use a separately validated crystallization condition for each protein; match purity, concentration, precipitant, temperature, and sample age. No human samples.
Against: Scattering adds no predictive value on independent preparations.

1501. Extraction staging — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1502. Drying support adhesion — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1503. Ion exposure sequence — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1504. Freeze concentration memory — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1505. Shear rest alternation — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1506. Mineral contact reversibility — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1507. Layered rehydration — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1508. Evaporation skin timing — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1509. Mild thermal recovery — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1510. Particle bridging threshold — flaxseed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For flaxseed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1511. Extraction staging — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1512. Drying support adhesion — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1513. Ion exposure sequence — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1514. Freeze concentration memory — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1515. Shear rest alternation — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1516. Mineral contact reversibility — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1517. Layered rehydration — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1518. Evaporation skin timing — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1519. Mild thermal recovery — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1520. Particle bridging threshold — chia seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For chia seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1521. Extraction staging — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1522. Drying support adhesion — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1523. Ion exposure sequence — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1524. Freeze concentration memory — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1525. Shear rest alternation — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1526. Mineral contact reversibility — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1527. Layered rehydration — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1528. Evaporation skin timing — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1529. Mild thermal recovery — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1530. Particle bridging threshold — psyllium seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For psyllium seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1531. Extraction staging — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1532. Drying support adhesion — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1533. Ion exposure sequence — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1534. Freeze concentration memory — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1535. Shear rest alternation — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1536. Mineral contact reversibility — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1537. Layered rehydration — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1538. Evaporation skin timing — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1539. Mild thermal recovery — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1540. Particle bridging threshold — quince seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For quince seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1541. Extraction staging — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1542. Drying support adhesion — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1543. Ion exposure sequence — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1544. Freeze concentration memory — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1545. Shear rest alternation — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1546. Mineral contact reversibility — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1547. Layered rehydration — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1548. Evaporation skin timing — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1549. Mild thermal recovery — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1550. Particle bridging threshold — basil seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For basil seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1551. Extraction staging — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1552. Drying support adhesion — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1553. Ion exposure sequence — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1554. Freeze concentration memory — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1555. Shear rest alternation — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1556. Mineral contact reversibility — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1557. Layered rehydration — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1558. Evaporation skin timing — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1559. Mild thermal recovery — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1560. Particle bridging threshold — cress seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For cress seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1561. Extraction staging — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1562. Drying support adhesion — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1563. Ion exposure sequence — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1564. Freeze concentration memory — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1565. Shear rest alternation — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1566. Mineral contact reversibility — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1567. Layered rehydration — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1568. Evaporation skin timing — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1569. Mild thermal recovery — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1570. Particle bridging threshold — okra seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For okra seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1571. Extraction staging — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1572. Drying support adhesion — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1573. Ion exposure sequence — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1574. Freeze concentration memory — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1575. Shear rest alternation — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1576. Mineral contact reversibility — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1577. Layered rehydration — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1578. Evaporation skin timing — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1579. Mild thermal recovery — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1580. Particle bridging threshold — fenugreek seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For fenugreek seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1581. Extraction staging — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1582. Drying support adhesion — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1583. Ion exposure sequence — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1584. Freeze concentration memory — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1585. Shear rest alternation — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1586. Mineral contact reversibility — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1587. Layered rehydration — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1588. Evaporation skin timing — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1589. Mild thermal recovery — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1590. Particle bridging threshold — mustard seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For mustard seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1591. Extraction staging — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, two gentle extraction stages will preserve more recoverable elasticity than one intense extraction at equal recovered solids.
Test: Measure molecular size and oscillatory rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic recovery is unchanged after solids and molecular size are considered.

1592. Drying support adhesion — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, low-adhesion drying supports will reduce rehydration-time variability.
Test: Compare uptake and film cracking across support treatments.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Rehydration variability does not follow support adhesion.

1593. Ion exposure sequence — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, gradual divalent-ion addition will produce a more uniform gel than abrupt addition at equal final composition.
Test: Map local modulus and ion concentration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Modulus variation is no lower under gradual addition.

1594. Freeze concentration memory — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, partial freezing before thawing will alter relaxation spectra more than bulk viscosity.
Test: Measure rheology before and after controlled partial freezing.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Relaxation changes are explained entirely by viscosity or concentration.

1595. Shear rest alternation — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, alternating short shear and rest intervals will preserve molecular length better than continuous shear at equal work.
Test: Measure polymer size and rheology.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Molecular length retention is no better at matched work.

1596. Mineral contact reversibility — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, adsorption onto smooth silica will recover more activity in water-film stabilization than adsorption onto rough silica.
Test: Measure adsorbed mass, release, and capillary film lifetimes.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovered stabilization follows released mass without a roughness effect.

1597. Layered rehydration — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, stacked thin dried layers will hydrate more uniformly than one thick layer at equal mass.
Test: Map water content and local stiffness during hydration.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Spatial hydration variation is unchanged.

1598. Evaporation skin timing — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, surface elastic signals will precede measurable evaporation-rate decline during skin formation.
Test: Measure surface rheology and gravimetric drying synchronously.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Elastic changes do not precede drying-rate changes.

1599. Mild thermal recovery — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, mild heating after shear will restore elasticity faster than passive rest without changing polymer mass.
Test: Measure recovery and molecular-size distributions.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: Recovery improvement requires measurable degradation or concentration changes.

1600. Particle bridging threshold — Arabidopsis seed mucilage
Area: Seed-derived mucilage gels
Type: system-specific member of an experimental family
Hypothesis: For Arabidopsis seed mucilage, an intermediate polymer dose will maximize reversible bridging of inert mineral particles.
Test: Measure cluster size and breakup after dose sweeps.
Controls: Use purified nonhuman plant material; match extraction batch, solids, ionic strength, temperature, and independently measured starting viscosity.
Against: No intermediate maximum occurs after free-polymer concentration is measured.

1601. Dark-zone transit spread — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1602. Bubble release spacing — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1603. Wall reflection color — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1604. Short settling rests — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1605. Gas pulse smoothing — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1606. Culture rotation direction — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1607. Optical self-shading warning — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1608. Thermal pulse placement — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1609. Harvest fraction scheduling — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1610. Flow-history relaxation — Chlorella vulgaris laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlorella vulgaris laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1611. Dark-zone transit spread — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1612. Bubble release spacing — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1613. Wall reflection color — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1614. Short settling rests — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1615. Gas pulse smoothing — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1616. Culture rotation direction — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1617. Optical self-shading warning — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1618. Thermal pulse placement — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1619. Harvest fraction scheduling — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1620. Flow-history relaxation — Chlamydomonas reinhardtii laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Chlamydomonas reinhardtii laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1621. Dark-zone transit spread — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1622. Bubble release spacing — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1623. Wall reflection color — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1624. Short settling rests — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1625. Gas pulse smoothing — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1626. Culture rotation direction — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1627. Optical self-shading warning — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1628. Thermal pulse placement — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1629. Harvest fraction scheduling — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1630. Flow-history relaxation — Scenedesmus obliquus laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Scenedesmus obliquus laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1631. Dark-zone transit spread — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1632. Bubble release spacing — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1633. Wall reflection color — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1634. Short settling rests — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1635. Gas pulse smoothing — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1636. Culture rotation direction — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1637. Optical self-shading warning — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1638. Thermal pulse placement — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1639. Harvest fraction scheduling — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1640. Flow-history relaxation — Desmodesmus communis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Desmodesmus communis laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1641. Dark-zone transit spread — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1642. Bubble release spacing — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1643. Wall reflection color — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1644. Short settling rests — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1645. Gas pulse smoothing — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1646. Culture rotation direction — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1647. Optical self-shading warning — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1648. Thermal pulse placement — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1649. Harvest fraction scheduling — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1650. Flow-history relaxation — Haematococcus pluvialis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Haematococcus pluvialis laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1651. Dark-zone transit spread — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1652. Bubble release spacing — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1653. Wall reflection color — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1654. Short settling rests — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1655. Gas pulse smoothing — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1656. Culture rotation direction — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1657. Optical self-shading warning — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1658. Thermal pulse placement — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1659. Harvest fraction scheduling — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1660. Flow-history relaxation — Dunaliella salina laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Dunaliella salina laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1661. Dark-zone transit spread — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1662. Bubble release spacing — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1663. Wall reflection color — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1664. Short settling rests — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1665. Gas pulse smoothing — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1666. Culture rotation direction — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1667. Optical self-shading warning — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1668. Thermal pulse placement — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1669. Harvest fraction scheduling — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1670. Flow-history relaxation — Nannochloropsis oceanica laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Nannochloropsis oceanica laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1671. Dark-zone transit spread — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1672. Bubble release spacing — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1673. Wall reflection color — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1674. Short settling rests — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1675. Gas pulse smoothing — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1676. Culture rotation direction — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1677. Optical self-shading warning — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1678. Thermal pulse placement — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1679. Harvest fraction scheduling — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1680. Flow-history relaxation — Phaeodactylum tricornutum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Phaeodactylum tricornutum laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1681. Dark-zone transit spread — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1682. Bubble release spacing — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1683. Wall reflection color — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1684. Short settling rests — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1685. Gas pulse smoothing — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1686. Culture rotation direction — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1687. Optical self-shading warning — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1688. Thermal pulse placement — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1689. Harvest fraction scheduling — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1690. Flow-history relaxation — Porphyridium purpureum laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Porphyridium purpureum laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1691. Dark-zone transit spread — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, narrowing the distribution of dark-zone transit times will improve photosynthetic recovery at equal mean light exposure.
Test: Compare controlled circulation paths and fluorescence recovery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is unchanged after actual photon histories are included.

1692. Bubble release spacing — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, widely spaced fine-bubble release points will reduce local cell accumulation compared with clustered releases.
Test: Map cells and flow at equal gas delivery.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Spatial accumulation is no lower after mixing is matched.

1693. Wall reflection color — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, a spectrally selective rear reflector will reduce the depth gradient of photosynthetic yield.
Test: Measure internal spectra and fluorescence profiles.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Yield gradients persist after absorbed photons are matched.

1694. Short settling rests — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, brief circulation rests will change aggregate-size distributions before bulk growth rate changes.
Test: Track aggregates and growth under equal daily mixing work.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Aggregation changes appear only alongside growth changes.

1695. Gas pulse smoothing — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, smoothing carbon-dioxide delivery will reduce pH variance more than it changes mean biomass production.
Test: Measure pH, dissolved carbon, and biomass.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: pH variance is unchanged or growth changes dominate.

1696. Culture rotation direction — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, periodically reversing gentle circulation will reduce persistent wall deposits.
Test: Measure attached biomass and suspended cell viability.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Deposits are unchanged at equal mixing work.

1697. Optical self-shading warning — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, spatial fluorescence variance will predict emerging self-shading earlier than bulk optical density.
Test: Track yield maps and independent light fields.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variance provides no earlier warning on independent cultures.

1698. Thermal pulse placement — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, a mild temperature pulse during darkness will cause different recovery than the same pulse during light.
Test: Measure fluorescence and growth after matched thermal doses.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Recovery is independent of light-phase placement.

1699. Harvest fraction scheduling — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, several small removals with medium replacement will reduce physiological variability relative to one equal-volume removal.
Test: Measure cell size and fluorescence distributions.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Variability is no lower after mean culture density is matched.

1700. Flow-history relaxation — Euglena gracilis laboratory culture
Area: Nonpathogenic microalgal culture physics
Type: system-specific member of an experimental family
Hypothesis: For Euglena gracilis laboratory culture, cell orientation or aggregation will retain a measurable memory after circulation stops.
Test: Track orientation and aggregate statistics during rest.
Controls: Use characterized nonpathogenic strains and species-appropriate media; match biomass, growth stage, temperature, nutrients, absorbed photons, and gas transfer.
Against: Observed relaxation is fully explained by passive settling controls.

1701. Flow interruption pits — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1702. Mask edge enhancement — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1703. Undersaturation ramp — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1704. Facet roughness memory — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1705. Grain contact shielding — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1706. Boundary layer asymmetry — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1707. Ion pulse recovery — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1708. Surface strain response — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1709. Microchannel confinement — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1710. Paired mineral spacing — calcite single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For calcite single-crystal dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1711. Flow interruption pits — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1712. Mask edge enhancement — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1713. Undersaturation ramp — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1714. Facet roughness memory — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1715. Grain contact shielding — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1716. Boundary layer asymmetry — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1717. Ion pulse recovery — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1718. Surface strain response — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1719. Microchannel confinement — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1720. Paired mineral spacing — gypsum single-crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For gypsum single-crystal dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1721. Flow interruption pits — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1722. Mask edge enhancement — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1723. Undersaturation ramp — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1724. Facet roughness memory — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1725. Grain contact shielding — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1726. Boundary layer asymmetry — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1727. Ion pulse recovery — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1728. Surface strain response — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1729. Microchannel confinement — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1730. Paired mineral spacing — halite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For halite crystal dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1731. Flow interruption pits — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1732. Mask edge enhancement — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1733. Undersaturation ramp — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1734. Facet roughness memory — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1735. Grain contact shielding — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1736. Boundary layer asymmetry — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1737. Ion pulse recovery — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1738. Surface strain response — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1739. Microchannel confinement — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1740. Paired mineral spacing — quartz grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For quartz grain dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1741. Flow interruption pits — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1742. Mask edge enhancement — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1743. Undersaturation ramp — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1744. Facet roughness memory — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1745. Grain contact shielding — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1746. Boundary layer asymmetry — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1747. Ion pulse recovery — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1748. Surface strain response — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1749. Microchannel confinement — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1750. Paired mineral spacing — feldspar grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For feldspar grain dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1751. Flow interruption pits — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1752. Mask edge enhancement — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1753. Undersaturation ramp — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1754. Facet roughness memory — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1755. Grain contact shielding — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1756. Boundary layer asymmetry — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1757. Ion pulse recovery — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1758. Surface strain response — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1759. Microchannel confinement — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1760. Paired mineral spacing — olivine grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For olivine grain dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1761. Flow interruption pits — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1762. Mask edge enhancement — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1763. Undersaturation ramp — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1764. Facet roughness memory — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1765. Grain contact shielding — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1766. Boundary layer asymmetry — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1767. Ion pulse recovery — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1768. Surface strain response — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1769. Microchannel confinement — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1770. Paired mineral spacing — dolomite grain dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For dolomite grain dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1771. Flow interruption pits — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1772. Mask edge enhancement — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1773. Undersaturation ramp — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1774. Facet roughness memory — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1775. Grain contact shielding — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1776. Boundary layer asymmetry — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1777. Ion pulse recovery — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1778. Surface strain response — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1779. Microchannel confinement — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1780. Paired mineral spacing — brucite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For brucite crystal dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1781. Flow interruption pits — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1782. Mask edge enhancement — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1783. Undersaturation ramp — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1784. Facet roughness memory — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1785. Grain contact shielding — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1786. Boundary layer asymmetry — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1787. Ion pulse recovery — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1788. Surface strain response — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1789. Microchannel confinement — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1790. Paired mineral spacing — aragonite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For aragonite crystal dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1791. Flow interruption pits — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, repeated flow interruptions will increase pit-depth variability compared with steady flow.
Test: Measure surface topography and dissolved-ion release.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Pit variability is unchanged after total dissolved mass is matched.

1792. Mask edge enhancement — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, narrow inert surface masks will concentrate dissolution near mask boundaries.
Test: Map retreat rates while varying boundary length at fixed masked area.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Retreat rates show no boundary-localized excess.

1793. Undersaturation ramp — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, gradual undersaturation changes will produce less rate hysteresis than abrupt changes.
Test: Measure solution chemistry and retreat across ramp schedules.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Hysteresis is independent of ramp speed.

1794. Facet roughness memory — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, pre-roughened facets will retain elevated dissolution-rate fluctuations after mean rates converge.
Test: Measure time-resolved retreat and roughness.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Fluctuations converge with the mean rate.

1795. Grain contact shielding — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, narrow grain contacts will retain dissolution-resistant bridges longer than isolated protrusions.
Test: Image matched contact and free-surface geometries.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Bridge lifetime is explained solely by exposed area.

1796. Boundary layer asymmetry — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, alternating flow direction will reduce upstream-downstream surface asymmetry.
Test: Map topography under equal total throughput.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Asymmetry is no lower after local flow is measured.

1797. Ion pulse recovery — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, a short pulse of a compatible common ion will leave a transient rate memory after washout.
Test: Measure local solution exchange and dissolution rate.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Rate follows solution composition without additional memory.

1798. Surface strain response — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, mild elastic strain will increase spatial variability of dissolution before changing mean rate.
Test: Map strain and retreat in specialist fixtures.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Variability changes only with mean rate or fracture.

1799. Microchannel confinement — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, confined dissolution will produce stronger temporal rate correlations than open-bath dissolution.
Test: Compare time series with matched transport coefficients.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Correlations are fully explained by measured solution residence times.

1800. Paired mineral spacing — fluorite crystal dissolution
Area: Mineral dissolution model systems
Type: system-specific member of an experimental family
Hypothesis: For fluorite crystal dissolution, close neighboring grains will dissolve less uniformly than widely separated grains at equal total area.
Test: Measure grain-resolved mass loss across spacing.
Controls: Use suitable controlled laboratory chemistry for each mineral; match reactive area, solution saturation, flow, pH, and temperature. Slow systems may require extended monitoring.
Against: Uniformity is independent of spacing after flow is controlled.

1801. Bubble neighborhood density — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1802. Pressure staircase — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1803. Flow pause saturation — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1804. Outlet distance memory — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1805. Thermal microcycle pumping — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1806. Pore-wall compliance — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1807. Initial wetting direction — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1808. Gas-path reconnection — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1809. Sparse vent positioning — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1810. Dissolution noise warning — periodic square-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For periodic square-pore glass network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1811. Bubble neighborhood density — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1812. Pressure staircase — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1813. Flow pause saturation — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1814. Outlet distance memory — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1815. Thermal microcycle pumping — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1816. Pore-wall compliance — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1817. Initial wetting direction — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1818. Gas-path reconnection — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1819. Sparse vent positioning — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1820. Dissolution noise warning — hexagonal-pore glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For hexagonal-pore glass network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1821. Bubble neighborhood density — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1822. Pressure staircase — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1823. Flow pause saturation — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1824. Outlet distance memory — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1825. Thermal microcycle pumping — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1826. Pore-wall compliance — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1827. Initial wetting direction — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1828. Gas-path reconnection — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1829. Sparse vent positioning — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1830. Dissolution noise warning — random-throat glass network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For random-throat glass network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1831. Bubble neighborhood density — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1832. Pressure staircase — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1833. Flow pause saturation — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1834. Outlet distance memory — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1835. Thermal microcycle pumping — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1836. Pore-wall compliance — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1837. Initial wetting direction — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1838. Gas-path reconnection — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1839. Sparse vent positioning — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1840. Dissolution noise warning — branching silicone pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For branching silicone pore network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1841. Bubble neighborhood density — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1842. Pressure staircase — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1843. Flow pause saturation — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1844. Outlet distance memory — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1845. Thermal microcycle pumping — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1846. Pore-wall compliance — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1847. Initial wetting direction — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1848. Gas-path reconnection — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1849. Sparse vent positioning — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1850. Dissolution noise warning — rigid branching polymer network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For rigid branching polymer network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1851. Bubble neighborhood density — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1852. Pressure staircase — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1853. Flow pause saturation — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1854. Outlet distance memory — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1855. Thermal microcycle pumping — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1856. Pore-wall compliance — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1857. Initial wetting direction — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1858. Gas-path reconnection — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1859. Sparse vent positioning — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1860. Dissolution noise warning — packed spherical-glass-bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed spherical-glass-bead network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1861. Bubble neighborhood density — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1862. Pressure staircase — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1863. Flow pause saturation — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1864. Outlet distance memory — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1865. Thermal microcycle pumping — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1866. Pore-wall compliance — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1867. Initial wetting direction — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1868. Gas-path reconnection — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1869. Sparse vent positioning — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1870. Dissolution noise warning — packed angular-silica network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For packed angular-silica network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1871. Bubble neighborhood density — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1872. Pressure staircase — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1873. Flow pause saturation — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1874. Outlet distance memory — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1875. Thermal microcycle pumping — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1876. Pore-wall compliance — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1877. Initial wetting direction — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1878. Gas-path reconnection — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1879. Sparse vent positioning — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1880. Dissolution noise warning — layered coarse-fine bead network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For layered coarse-fine bead network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1881. Bubble neighborhood density — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1882. Pressure staircase — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1883. Flow pause saturation — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1884. Outlet distance memory — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1885. Thermal microcycle pumping — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1886. Pore-wall compliance — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1887. Initial wetting direction — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1888. Gas-path reconnection — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1889. Sparse vent positioning — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1890. Dissolution noise warning — woven glass-fiber pore network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For woven glass-fiber pore network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1891. Bubble neighborhood density — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, closely neighboring trapped bubbles will dissolve more slowly per initial area than isolated bubbles.
Test: Image bubble shrinkage at controlled dissolved-gas concentration.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Neighborhood density has no effect after local transport is measured.

1892. Pressure staircase — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, a pressure staircase will leave a broader bubble-size distribution than a smooth pressure ramp.
Test: Compare trapped bubbles at equal final pressure and elapsed time.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Size distributions are indistinguishable after initial sizes are matched.

1893. Flow pause saturation — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, short flow pauses will slow subsequent dissolution by locally saturating water.
Test: Measure restart shrinkage and local dissolved gas.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Restart slowdown is absent or unrelated to local saturation.

1894. Outlet distance memory — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, bubbles farther from the outlet will retain longer pressure-cycle memory.
Test: Map bubble volume and connectivity across positions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Memory does not correlate with transport distance after geometry is included.

1895. Thermal microcycle pumping — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, small temperature cycles will alter trapped-gas topology before changing total gas volume.
Test: Image topology and gas volume during controlled thermal cycles.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Topology changes only alongside proportional gas-volume changes.

1896. Pore-wall compliance — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, reversible wall deformation will increase dissolution-time variability near a deformation threshold.
Test: Measure wall motion and bubble lifetimes across pressures.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Variability is independent of measured wall deformation.

1897. Initial wetting direction — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, reversing initial wetting direction will change long-lived bubble locations.
Test: Compare registered networks and independently characterized wettability.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Locations follow fixed defects without a directional effect.

1898. Gas-path reconnection — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, a brief low-pressure pulse will reconnect gas clusters and accelerate later removal.
Test: Image connectivity and removal after sham and real pulses.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Removal does not improve after pressure work is included.

1899. Sparse vent positioning — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, vents near high-connectivity nodes will remove more gas than vents near dead ends.
Test: Compare equal vent area and gas initial conditions.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Gas removal is independent of node connectivity.

1900. Dissolution noise warning — porous transparent hydrogel network
Area: Porous-network gas dissolution
Type: system-specific member of an experimental family
Hypothesis: For porous transparent hydrogel network, sudden pressure-noise events will predict gas-cluster disconnection.
Test: Synchronize pressure and high-speed pore imaging.
Controls: Use water and air with matched gas saturation, temperature, initial trapped volume, wettability, pressure, and measured pore geometry.
Against: Noise events fail to predict disconnections above chance on held-out runs.

1901. Mixing order memory — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1902. Thin-layer coarsening — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1903. Weak shear cessation — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1904. Temperature oscillation arrest — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1905. Neutral tracer partition — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1906. Surface affinity gradient — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1907. Salt pulse topology — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1908. Droplet collision age — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1909. Evaporation symmetry — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1910. Rehydration pathway — PEG-dextran aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-dextran aqueous two-phase mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1911. Mixing order memory — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1912. Thin-layer coarsening — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1913. Weak shear cessation — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1914. Temperature oscillation arrest — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1915. Neutral tracer partition — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1916. Surface affinity gradient — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1917. Salt pulse topology — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1918. Droplet collision age — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1919. Evaporation symmetry — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1920. Rehydration pathway — PEG-ficoll aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-ficoll aqueous two-phase mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1921. Mixing order memory — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1922. Thin-layer coarsening — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1923. Weak shear cessation — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1924. Temperature oscillation arrest — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1925. Neutral tracer partition — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1926. Surface affinity gradient — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1927. Salt pulse topology — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1928. Droplet collision age — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1929. Evaporation symmetry — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1930. Rehydration pathway — PEG-starch aqueous two-phase mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-starch aqueous two-phase mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1931. Mixing order memory — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1932. Thin-layer coarsening — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1933. Weak shear cessation — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1934. Temperature oscillation arrest — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1935. Neutral tracer partition — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1936. Surface affinity gradient — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1937. Salt pulse topology — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1938. Droplet collision age — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1939. Evaporation symmetry — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1940. Rehydration pathway — PEG-polyvinyl-alcohol aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For PEG-polyvinyl-alcohol aqueous mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1941. Mixing order memory — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1942. Thin-layer coarsening — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1943. Weak shear cessation — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1944. Temperature oscillation arrest — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1945. Neutral tracer partition — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1946. Surface affinity gradient — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1947. Salt pulse topology — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1948. Droplet collision age — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1949. Evaporation symmetry — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1950. Rehydration pathway — dextran-methylcellulose aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For dextran-methylcellulose aqueous mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1951. Mixing order memory — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1952. Thin-layer coarsening — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1953. Weak shear cessation — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1954. Temperature oscillation arrest — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1955. Neutral tracer partition — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1956. Surface affinity gradient — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1957. Salt pulse topology — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1958. Droplet collision age — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1959. Evaporation symmetry — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1960. Rehydration pathway — gelatin-dextran aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gelatin-dextran aqueous mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1961. Mixing order memory — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1962. Thin-layer coarsening — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1963. Weak shear cessation — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1964. Temperature oscillation arrest — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1965. Neutral tracer partition — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1966. Surface affinity gradient — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1967. Salt pulse topology — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1968. Droplet collision age — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1969. Evaporation symmetry — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1970. Rehydration pathway — alginate-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For alginate-PEG aqueous mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1971. Mixing order memory — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1972. Thin-layer coarsening — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1973. Weak shear cessation — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1974. Temperature oscillation arrest — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1975. Neutral tracer partition — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1976. Surface affinity gradient — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1977. Salt pulse topology — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1978. Droplet collision age — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1979. Evaporation symmetry — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1980. Rehydration pathway — hydroxyethylcellulose-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For hydroxyethylcellulose-PEG aqueous mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1981. Mixing order memory — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1982. Thin-layer coarsening — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1983. Weak shear cessation — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1984. Temperature oscillation arrest — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1985. Neutral tracer partition — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1986. Surface affinity gradient — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1987. Salt pulse topology — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1988. Droplet collision age — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1989. Evaporation symmetry — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

1990. Rehydration pathway — pullulan-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For pullulan-PEG aqueous mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

1991. Mixing order memory — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, opposite addition orders will produce different early domain sizes but convergent equilibrium phase compositions.
Test: Measure time-resolved domains and final phase concentrations.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Domain kinetics are identical or final compositions remain different.

1992. Thin-layer coarsening — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, confinement will shift domain growth from three-dimensional coalescence toward elongated connected regions.
Test: Image morphology across gap thicknesses.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Morphology differences are explained solely by wall adsorption.

1993. Weak shear cessation — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, shear-aligned domains will retain orientation longer near the phase boundary.
Test: Measure orientation relaxation across independently mapped compositions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Relaxation time does not increase near the boundary.

1994. Temperature oscillation arrest — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, small temperature oscillations will slow net coarsening relative to the same mean temperature.
Test: Track domain size and verify reversible phase behavior.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Coarsening rates agree after actual temperature histories are modeled.

1995. Neutral tracer partition — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, neutral tracer partition will show stronger size dependence near domain interfaces than within bulk phases.
Test: Image a calibrated inert tracer-size series.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Apparent interfacial selectivity is explained by optical resolution or binding.

1996. Surface affinity gradient — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, a mild surface-affinity gradient will bias domain migration without bulk flow.
Test: Track domains and inert flow markers.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Migration disappears after correcting for residual flow.

1997. Salt pulse topology — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, a small reversible salt pulse will alter connectivity before changing total phase fraction.
Test: Measure phase topology and compositions during pulse washout.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Topology changes are proportional to phase-fraction changes only.

1998. Droplet collision age — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, older dispersed domains will merge more slowly at equal size because interfaces accumulate slow components.
Test: Measure collision and fusion while tracking interfacial composition.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Fusion time is age-independent after viscosity is matched.

1999. Evaporation symmetry — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, symmetric solvent loss will produce less domain-size variation than one-sided loss.
Test: Map water content and domains at equal final solids.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Variation is unchanged after local composition is included.

2000. Rehydration pathway — gum-arabic-PEG aqueous mixture
Area: Aqueous polymer phase separation
Type: system-specific member of an experimental family
Hypothesis: For gum-arabic-PEG aqueous mixture, stepwise rehydration will restore initial domain statistics more closely than abrupt dilution.
Test: Compare initial and recovered size and connectivity distributions.
Controls: First verify a reversible two-phase region for the chosen grades; match phase fractions, polymer masses, temperature, ionic strength, and viscosity.
Against: Stepwise rehydration provides no better structural recovery.

2001. Illumination sweep direction — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2002. Dark oxygen recovery — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2003. Catalyst island perimeter — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2004. Water-film thickness window — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2005. Support thermal conductivity — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2006. Pre-adsorption timing — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2007. Washout flow pulses — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2008. Dual-sided illumination — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2009. Dissolved oxygen microgradients — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2010. Reference adsorption control — titania-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated glass beads, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2011. Illumination sweep direction — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2012. Dark oxygen recovery — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2013. Catalyst island perimeter — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2014. Water-film thickness window — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2015. Support thermal conductivity — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2016. Pre-adsorption timing — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2017. Washout flow pulses — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2018. Dual-sided illumination — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2019. Dissolved oxygen microgradients — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2020. Reference adsorption control — titania-coated ceramic foam
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated ceramic foam, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2021. Illumination sweep direction — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2022. Dark oxygen recovery — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2023. Catalyst island perimeter — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2024. Water-film thickness window — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2025. Support thermal conductivity — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2026. Pre-adsorption timing — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2027. Washout flow pulses — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2028. Dual-sided illumination — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2029. Dissolved oxygen microgradients — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2030. Reference adsorption control — titania-coated cellulose sheet
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated cellulose sheet, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2031. Illumination sweep direction — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2032. Dark oxygen recovery — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2033. Catalyst island perimeter — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2034. Water-film thickness window — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2035. Support thermal conductivity — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2036. Pre-adsorption timing — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2037. Washout flow pulses — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2038. Dual-sided illumination — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2039. Dissolved oxygen microgradients — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2040. Reference adsorption control — titania-coated silica fibers
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For titania-coated silica fibers, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2041. Illumination sweep direction — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2042. Dark oxygen recovery — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2043. Catalyst island perimeter — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2044. Water-film thickness window — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2045. Support thermal conductivity — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2046. Pre-adsorption timing — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2047. Washout flow pulses — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2048. Dual-sided illumination — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2049. Dissolved oxygen microgradients — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2050. Reference adsorption control — zinc-oxide-coated glass beads
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated glass beads, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2051. Illumination sweep direction — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2052. Dark oxygen recovery — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2053. Catalyst island perimeter — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2054. Water-film thickness window — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2055. Support thermal conductivity — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2056. Pre-adsorption timing — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2057. Washout flow pulses — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2058. Dual-sided illumination — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2059. Dissolved oxygen microgradients — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2060. Reference adsorption control — zinc-oxide-coated ceramic tile
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For zinc-oxide-coated ceramic tile, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2061. Illumination sweep direction — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2062. Dark oxygen recovery — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2063. Catalyst island perimeter — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2064. Water-film thickness window — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2065. Support thermal conductivity — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2066. Pre-adsorption timing — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2067. Washout flow pulses — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2068. Dual-sided illumination — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2069. Dissolved oxygen microgradients — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2070. Reference adsorption control — carbon-nitride-coated glass
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated glass, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2071. Illumination sweep direction — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2072. Dark oxygen recovery — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2073. Catalyst island perimeter — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2074. Water-film thickness window — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2075. Support thermal conductivity — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2076. Pre-adsorption timing — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2077. Washout flow pulses — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2078. Dual-sided illumination — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2079. Dissolved oxygen microgradients — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2080. Reference adsorption control — carbon-nitride-coated porous silica
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For carbon-nitride-coated porous silica, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2081. Illumination sweep direction — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2082. Dark oxygen recovery — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2083. Catalyst island perimeter — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2084. Water-film thickness window — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2085. Support thermal conductivity — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2086. Pre-adsorption timing — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2087. Washout flow pulses — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2088. Dual-sided illumination — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2089. Dissolved oxygen microgradients — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2090. Reference adsorption control — immobilized iron-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized iron-oxide model photocatalyst, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2091. Illumination sweep direction — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, scanning light against liquid flow will flatten conversion gradients more than scanning with flow.
Test: Map products and local irradiance at equal absorbed photons.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Conversion uniformity is independent of scan direction.

2092. Dark oxygen recovery — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, short dark aeration intervals will restore reaction rate more effectively than illuminated aeration.
Test: Measure oxygen, products, and subsequent rate at equal gas input.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Recovery is no better after temperature and oxygen are matched.

2093. Catalyst island perimeter — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, smaller separated catalyst islands will improve product yield per catalyst mass until transport zones overlap.
Test: Vary island size at fixed catalyst mass and measure products.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: No perimeter-dependent gain remains after light absorption is matched.

2094. Water-film thickness window — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, an intermediate liquid-film thickness will maximize product formation per input photon.
Test: Measure product balance, film thickness, and absorbed light.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Yield lacks an intermediate maximum within the predefined range.

2095. Support thermal conductivity — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, higher support conductivity will reduce spatial rate fluctuations under intermittent light.
Test: Map temperatures and product formation on matched supports.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate fluctuations persist after measured thermal gradients are reduced.

2096. Pre-adsorption timing — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, allowing adsorption before illumination will change early product selectivity beyond the change in total conversion.
Test: Measure adsorbed probe, products, and total carbon where appropriate.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Selectivity follows conversion alone without a timing effect.

2097. Washout flow pulses — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, brief clean-water pulses will reduce product inhibition without substantial catalyst loss.
Test: Measure product recovery, restart rates, and catalyst in effluent.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate recovery is absent or due to catalyst shedding.

2098. Dual-sided illumination — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, illumination from both sides will reduce inactive catalyst depth at equal absorbed photons.
Test: Measure depth-resolved activity and spectral absorption.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Usable depth and overall yield do not improve.

2099. Dissolved oxygen microgradients — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, local oxygen depletion will precede apparent catalyst deactivation under rising substrate load.
Test: Measure oxygen near surfaces and independently characterize catalyst changes.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Rate decline occurs without prior depletion or survives oxygen restoration unchanged.

2100. Reference adsorption control — immobilized bismuth-oxide model photocatalyst
Area: Supported benign photocatalytic model reactions
Type: system-specific member of an experimental family
Hypothesis: For immobilized bismuth-oxide model photocatalyst, paired dark adsorption runs will substantially change inferred reaction kinetics when probe binding is slow.
Test: Compare product-verified rates with disappearance-only estimates.
Controls: Use a validated low-hazard probe reaction, compatible immobilization, equal catalyst activity, absorbed light, oxygen, temperature, and independently measured adsorption. Probe disappearance alone is not mineralization.
Against: Dark correction does not change validated rate estimates beyond uncertainty.

2101. Edge exposure asymmetry — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2102. Perforation orientation — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2103. Humidity reset plateau — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2104. Width tapering — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2105. Passive layer viscoelasticity — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2106. Alternating active stripes — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2107. Moisture pulse saturation — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2108. Neutral-axis marker sensing — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2109. Mechanical stop recovery — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2110. Counterbalanced mounting — cellulose-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For cellulose-polymer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2111. Edge exposure asymmetry — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2112. Perforation orientation — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2113. Humidity reset plateau — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2114. Width tapering — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2115. Passive layer viscoelasticity — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2116. Alternating active stripes — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2117. Moisture pulse saturation — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2118. Neutral-axis marker sensing — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2119. Mechanical stop recovery — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2120. Counterbalanced mounting — wood-veneer elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For wood-veneer elastomer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2121. Edge exposure asymmetry — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2122. Perforation orientation — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2123. Humidity reset plateau — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2124. Width tapering — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2125. Passive layer viscoelasticity — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2126. Alternating active stripes — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2127. Moisture pulse saturation — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2128. Neutral-axis marker sensing — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2129. Mechanical stop recovery — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2130. Counterbalanced mounting — agarose-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For agarose-elastomer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2131. Edge exposure asymmetry — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2132. Perforation orientation — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2133. Humidity reset plateau — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2134. Width tapering — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2135. Passive layer viscoelasticity — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2136. Alternating active stripes — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2137. Moisture pulse saturation — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2138. Neutral-axis marker sensing — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2139. Mechanical stop recovery — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2140. Counterbalanced mounting — gelatin-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For gelatin-polymer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2141. Edge exposure asymmetry — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2142. Perforation orientation — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2143. Humidity reset plateau — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2144. Width tapering — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2145. Passive layer viscoelasticity — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2146. Alternating active stripes — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2147. Moisture pulse saturation — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2148. Neutral-axis marker sensing — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2149. Mechanical stop recovery — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2150. Counterbalanced mounting — chitosan-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For chitosan-polymer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2151. Edge exposure asymmetry — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2152. Perforation orientation — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2153. Humidity reset plateau — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2154. Width tapering — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2155. Passive layer viscoelasticity — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2156. Alternating active stripes — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2157. Moisture pulse saturation — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2158. Neutral-axis marker sensing — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2159. Mechanical stop recovery — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2160. Counterbalanced mounting — alginate-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For alginate-polymer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2161. Edge exposure asymmetry — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2162. Perforation orientation — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2163. Humidity reset plateau — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2164. Width tapering — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2165. Passive layer viscoelasticity — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2166. Alternating active stripes — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2167. Moisture pulse saturation — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2168. Neutral-axis marker sensing — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2169. Mechanical stop recovery — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2170. Counterbalanced mounting — starch-polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For starch-polymer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2171. Edge exposure asymmetry — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2172. Perforation orientation — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2173. Humidity reset plateau — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2174. Width tapering — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2175. Passive layer viscoelasticity — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2176. Alternating active stripes — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2177. Moisture pulse saturation — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2178. Neutral-axis marker sensing — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2179. Mechanical stop recovery — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2180. Counterbalanced mounting — silk-fibroin polymer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For silk-fibroin polymer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2181. Edge exposure asymmetry — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2182. Perforation orientation — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2183. Humidity reset plateau — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2184. Width tapering — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2185. Passive layer viscoelasticity — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2186. Alternating active stripes — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2187. Moisture pulse saturation — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2188. Neutral-axis marker sensing — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2189. Mechanical stop recovery — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2190. Counterbalanced mounting — hygroscopic nylon-elastomer bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For hygroscopic nylon-elastomer bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2191. Edge exposure asymmetry — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, exposing edges while sealing faces will produce slower but more spatially uniform bending.
Test: Map moisture and curvature under controlled humidity steps.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Bending uniformity does not improve despite slower uptake.

2192. Perforation orientation — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, transverse perforations will speed bending more than longitudinal perforations of equal removed area.
Test: Measure response time, stiffness, and local strain.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Orientation has no independent effect after stiffness is matched.

2193. Humidity reset plateau — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, a short intermediate-humidity plateau will reduce endpoint curvature drift.
Test: Compare repeated humidity cycles with equal total duration.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Endpoint drift is unchanged under the plateau schedule.

2194. Width tapering — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, gradual width tapering will localize useful tip displacement without concentrating peak interfacial strain.
Test: Map shape and strain relative to constant-width controls.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Any displacement gain requires greater peak interfacial strain.

2195. Passive layer viscoelasticity — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, slower passive-layer relaxation will increase directional bending hysteresis.
Test: Measure mechanical relaxation and humidity-cycle curvature.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Hysteresis is unrelated to passive-layer relaxation after uptake is matched.

2196. Alternating active stripes — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, oblique hygroscopic stripes will create more repeatable twist than uniform active layers.
Test: Measure three-dimensional motion over independent specimens.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Twist repeatability is no better after thickness variation is included.

2197. Moisture pulse saturation — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, two separated short humidity pulses will produce greater final curvature than one equal-dose pulse near saturation.
Test: Measure absorbed water and curvature for matched pulse histories.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Curvature depends only on final moisture without a pulse-history effect.

2198. Neutral-axis marker sensing — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, paired optical markers across thickness will detect delamination earlier than tip displacement alone.
Test: Track markers, tip motion, and independent interface images during cycling.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Markers provide no earlier reliable delamination warning.

2199. Mechanical stop recovery — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, a compliant motion stop will preserve actuation amplitude longer than a rigid stop.
Test: Measure amplitude retention and interface damage under identical cycles.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Amplitude retention is unchanged after maximum strain is controlled.

2200. Counterbalanced mounting — paper-metal thin-film bilayer
Area: Humidity-driven soft actuators
Type: system-specific member of an experimental family
Hypothesis: For paper-metal thin-film bilayer, mounting opposing actuators will reduce gravity-induced calibration drift more than humidity sensitivity.
Test: Compare orientation effects and humidity response under equal loads.
Controls: Layer thickness, modulus, moisture uptake, actual humidity history, temperature, actuator length, and adhesion. Verify reversible actuation before comparisons.
Against: Gravity error falls only with comparable loss of humidity response.

2201. Loading-side alternation — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2202. Gentle vibration cleaning — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2203. Humidity conditioning timing — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2204. Layer-spacing redistribution — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2205. Fiber-direction alternation — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2206. Pulsed face velocity — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2207. Edge-seal compliance — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2208. Electrostatic neutralization timing — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2209. Deposit patch spacing — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2210. Pressure-noise localization — cellulose fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For cellulose fiber filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2211. Loading-side alternation — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2212. Gentle vibration cleaning — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2213. Humidity conditioning timing — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2214. Layer-spacing redistribution — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2215. Fiber-direction alternation — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2216. Pulsed face velocity — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2217. Edge-seal compliance — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2218. Electrostatic neutralization timing — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2219. Deposit patch spacing — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2220. Pressure-noise localization — glass-fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2221. Loading-side alternation — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2222. Gentle vibration cleaning — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2223. Humidity conditioning timing — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2224. Layer-spacing redistribution — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2225. Fiber-direction alternation — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2226. Pulsed face velocity — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2227. Edge-seal compliance — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2228. Electrostatic neutralization timing — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2229. Deposit patch spacing — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2230. Pressure-noise localization — polypropylene fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polypropylene fiber filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2231. Loading-side alternation — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2232. Gentle vibration cleaning — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2233. Humidity conditioning timing — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2234. Layer-spacing redistribution — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2235. Fiber-direction alternation — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2236. Pulsed face velocity — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2237. Edge-seal compliance — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2238. Electrostatic neutralization timing — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2239. Deposit patch spacing — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2240. Pressure-noise localization — polyester fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2241. Loading-side alternation — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2242. Gentle vibration cleaning — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2243. Humidity conditioning timing — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2244. Layer-spacing redistribution — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2245. Fiber-direction alternation — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2246. Pulsed face velocity — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2247. Edge-seal compliance — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2248. Electrostatic neutralization timing — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2249. Deposit patch spacing — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2250. Pressure-noise localization — nylon fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2251. Loading-side alternation — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2252. Gentle vibration cleaning — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2253. Humidity conditioning timing — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2254. Layer-spacing redistribution — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2255. Fiber-direction alternation — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2256. Pulsed face velocity — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2257. Edge-seal compliance — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2258. Electrostatic neutralization timing — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2259. Deposit patch spacing — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2260. Pressure-noise localization — wool-derived fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For wool-derived fiber filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2261. Loading-side alternation — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2262. Gentle vibration cleaning — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2263. Humidity conditioning timing — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2264. Layer-spacing redistribution — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2265. Fiber-direction alternation — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2266. Pulsed face velocity — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2267. Edge-seal compliance — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2268. Electrostatic neutralization timing — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2269. Deposit patch spacing — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2270. Pressure-noise localization — silica-coated fiber filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For silica-coated fiber filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2271. Loading-side alternation — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2272. Gentle vibration cleaning — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2273. Humidity conditioning timing — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2274. Layer-spacing redistribution — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2275. Fiber-direction alternation — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2276. Pulsed face velocity — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2277. Edge-seal compliance — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2278. Electrostatic neutralization timing — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2279. Deposit patch spacing — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2280. Pressure-noise localization — porous ceramic air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic air filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2281. Loading-side alternation — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2282. Gentle vibration cleaning — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2283. Humidity conditioning timing — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2284. Layer-spacing redistribution — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2285. Fiber-direction alternation — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2286. Pulsed face velocity — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2287. Edge-seal compliance — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2288. Electrostatic neutralization timing — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2289. Deposit patch spacing — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2290. Pressure-noise localization — open-cell polymer foam air filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For open-cell polymer foam air filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2291. Loading-side alternation — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, alternating the upstream face will distribute deposits more evenly but may increase particle re-entrainment.
Test: Measure depth profiles, efficiency, and downstream bursts.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Deposit uniformity and re-entrainment remain unchanged.

2292. Gentle vibration cleaning — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, brief off-flow vibration will restore permeability with less downstream release than vibration during flow.
Test: Measure recovered pressure drop and escaped particles.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Off-flow cleaning has no permeability-versus-release advantage.

2293. Humidity conditioning timing — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, conditioning before dust loading will alter pressure-rise kinetics more than conditioning afterward.
Test: Compare matched final humidity and deposited mass.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Pressure rise is independent of conditioning sequence.

2294. Layer-spacing redistribution — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, widening gaps downstream will reduce deposit bridging between layers.
Test: Image deposits and pressure evolution at equal total thickness.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Bridging frequency is unchanged after loading distribution is measured.

2295. Fiber-direction alternation — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, crossed fiber layers will reduce flow-channel persistence during loading.
Test: Map local airflow and deposits in aligned and crossed arrangements.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Channel persistence does not decrease with crossed layers.

2296. Pulsed face velocity — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, low-amplitude flow pulsation will broaden deposited-particle size profiles through the depth.
Test: Measure size-resolved layer deposits at equal air volume.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Depth profiles remain indistinguishable after mean velocity is matched.

2297. Edge-seal compliance — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, compliant seals will reduce apparent efficiency drift during humidity cycling by preserving bypass closure.
Test: Measure bypass leakage separately from media penetration.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Efficiency drift is unrelated to measured seal leakage.

2298. Electrostatic neutralization timing — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, neutralizing incoming particles will reduce early efficiency more than late loaded-filter efficiency.
Test: Measure charge and size-resolved capture through loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Neutralization effects do not vary with loading stage.

2299. Deposit patch spacing — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, distributed small preloads will delay large open-channel formation compared with one preload patch.
Test: Map airflow during subsequent uniform loading.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Open channels form equally soon after initial permeability is matched.

2300. Pressure-noise localization — stacked inert wire-mesh filter
Area: Inert particle aerosol filtration
Type: system-specific member of an experimental family
Hypothesis: For stacked inert wire-mesh filter, pressure fluctuation changes will identify local deposit collapse before average pressure drop falls.
Test: Synchronize pressure and deposit imaging.
Controls: Use contained inert model aerosols; match particle-size distribution, face velocity, humidity, initial pressure drop, and independently measured loading.
Against: Noise offers no earlier collapse detection at matched false-alarm rate.

2301. Fiber crossover bonding — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2302. Tapered branching supply — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2303. Cyclic inlet immersion — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2304. Gravity orientation cycling — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2305. Nonwetting pin pattern — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2306. Salt washout direction — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2307. Compression release speed — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2308. Evaporation-edge curvature — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2309. Fiber finish removal — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2310. Interlayer contact pressure — cotton fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cotton fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2311. Fiber crossover bonding — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2312. Tapered branching supply — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2313. Cyclic inlet immersion — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2314. Gravity orientation cycling — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2315. Nonwetting pin pattern — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2316. Salt washout direction — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2317. Compression release speed — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2318. Evaporation-edge curvature — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2319. Fiber finish removal — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2320. Interlayer contact pressure — cellulose paper wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For cellulose paper wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2321. Fiber crossover bonding — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2322. Tapered branching supply — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2323. Cyclic inlet immersion — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2324. Gravity orientation cycling — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2325. Nonwetting pin pattern — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2326. Salt washout direction — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2327. Compression release speed — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2328. Evaporation-edge curvature — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2329. Fiber finish removal — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2330. Interlayer contact pressure — glass-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For glass-fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2331. Fiber crossover bonding — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2332. Tapered branching supply — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2333. Cyclic inlet immersion — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2334. Gravity orientation cycling — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2335. Nonwetting pin pattern — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2336. Salt washout direction — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2337. Compression release speed — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2338. Evaporation-edge curvature — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2339. Fiber finish removal — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2340. Interlayer contact pressure — polyester fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For polyester fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2341. Fiber crossover bonding — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2342. Tapered branching supply — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2343. Cyclic inlet immersion — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2344. Gravity orientation cycling — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2345. Nonwetting pin pattern — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2346. Salt washout direction — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2347. Compression release speed — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2348. Evaporation-edge curvature — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2349. Fiber finish removal — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2350. Interlayer contact pressure — nylon fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For nylon fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2351. Fiber crossover bonding — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2352. Tapered branching supply — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2353. Cyclic inlet immersion — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2354. Gravity orientation cycling — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2355. Nonwetting pin pattern — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2356. Salt washout direction — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2357. Compression release speed — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2358. Evaporation-edge curvature — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2359. Fiber finish removal — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2360. Interlayer contact pressure — flax fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For flax fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2361. Fiber crossover bonding — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2362. Tapered branching supply — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2363. Cyclic inlet immersion — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2364. Gravity orientation cycling — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2365. Nonwetting pin pattern — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2366. Salt washout direction — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2367. Compression release speed — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2368. Evaporation-edge curvature — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2369. Fiber finish removal — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2370. Interlayer contact pressure — hemp fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For hemp fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2371. Fiber crossover bonding — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2372. Tapered branching supply — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2373. Cyclic inlet immersion — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2374. Gravity orientation cycling — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2375. Nonwetting pin pattern — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2376. Salt washout direction — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2377. Compression release speed — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2378. Evaporation-edge curvature — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2379. Fiber finish removal — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2380. Interlayer contact pressure — bamboo-derived fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For bamboo-derived fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2381. Fiber crossover bonding — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2382. Tapered branching supply — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2383. Cyclic inlet immersion — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2384. Gravity orientation cycling — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2385. Nonwetting pin pattern — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2386. Salt washout direction — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2387. Compression release speed — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2388. Evaporation-edge curvature — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2389. Fiber finish removal — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2390. Interlayer contact pressure — viscose fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For viscose fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2391. Fiber crossover bonding — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, bonding selected crossovers will reduce capillary-front wandering without strongly reducing uptake speed.
Test: Measure fronts and conductance across bonding densities.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Wandering improves only alongside proportionate conductance loss.

2392. Tapered branching supply — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, gradually tapered branches will distribute liquid more evenly under unequal evaporation.
Test: Map branch moisture and evaporation at equal inlet supply.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supply uniformity is no better than constant-width branches.

2393. Cyclic inlet immersion — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, short immersion breaks will leave stronger uptake memory in compressed than uncompressed regions.
Test: Measure local uptake and retained water after restart.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Memory is independent of compression after pore size is considered.

2394. Gravity orientation cycling — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, slow orientation changes will reduce permanently dry regions near the supply limit.
Test: Image wetness at matched evaporation and liquid head.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Dry-area reduction disappears after instantaneous head is modeled.

2395. Nonwetting pin pattern — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, sparse nonwetting pins will redirect fronts more predictably than continuous nonwetting stripes.
Test: Measure front paths and repeatability at equal treated area.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Routing repeatability is not improved.

2396. Salt washout direction — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, flushing opposite the normal supply direction will remove benign salt deposits more efficiently.
Test: Measure residual salt and restored conductance at equal wash volume.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Salt removal and recovery are direction-independent.

2397. Compression release speed — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, slow decompression will reduce trapped-air voids during rewetting.
Test: Image gas and measure uptake after matched compression.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Gas fraction is unchanged after final thickness is matched.

2398. Evaporation-edge curvature — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, rounded evaporating edges will reduce local salt supersaturation compared with sharp edges.
Test: Map salt concentration and crystal onset with benign salts.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Supersaturation depends only on local evaporation flux.

2399. Fiber finish removal — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, mild verified finish removal will reduce uptake variability more than it changes mean uptake.
Test: Measure surface chemistry and uptake across independent samples.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Variability and mean change proportionally or not at all.

2400. Interlayer contact pressure — porous ceramic-fiber wick
Area: Fibrous liquid wicks
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-fiber wick, intermediate contact pressure will maximize transfer between crossed wick layers.
Test: Measure transfer while independently mapping contact area and pore collapse.
Controls: Use a compatible nonreactive liquid; match fiber mass, dimensions, initial moisture, contact angle, temperature, and measured pore distribution.
Against: Transfer lacks an intermediate maximum.

2401. Flow startup curvature — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2402. Rest consolidation timing — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2403. Small obstacle alignment — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2404. Surface grain substitution — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2405. Water-level oscillation — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2406. Deposition interval ordering — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2407. Sidewall friction asymmetry — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2408. Drainage-before-flow — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2409. Oscillation phase and bed slope — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2410. Acoustic erosion warning — rounded quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For rounded quartz sand bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2411. Flow startup curvature — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2412. Rest consolidation timing — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2413. Small obstacle alignment — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2414. Surface grain substitution — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2415. Water-level oscillation — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2416. Deposition interval ordering — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2417. Sidewall friction asymmetry — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2418. Drainage-before-flow — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2419. Oscillation phase and bed slope — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2420. Acoustic erosion warning — angular quartz sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For angular quartz sand bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2421. Flow startup curvature — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2422. Rest consolidation timing — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2423. Small obstacle alignment — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2424. Surface grain substitution — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2425. Water-level oscillation — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2426. Deposition interval ordering — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2427. Sidewall friction asymmetry — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2428. Drainage-before-flow — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2429. Oscillation phase and bed slope — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2430. Acoustic erosion warning — glass-microsphere bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For glass-microsphere bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2431. Flow startup curvature — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2432. Rest consolidation timing — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2433. Small obstacle alignment — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2434. Surface grain substitution — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2435. Water-level oscillation — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2436. Deposition interval ordering — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2437. Sidewall friction asymmetry — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2438. Drainage-before-flow — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2439. Oscillation phase and bed slope — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2440. Acoustic erosion warning — calcium-carbonate sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For calcium-carbonate sand bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2441. Flow startup curvature — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2442. Rest consolidation timing — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2443. Small obstacle alignment — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2444. Surface grain substitution — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2445. Water-level oscillation — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2446. Deposition interval ordering — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2447. Sidewall friction asymmetry — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2448. Drainage-before-flow — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2449. Oscillation phase and bed slope — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2450. Acoustic erosion warning — kaolin-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For kaolin-sand mixed bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2451. Flow startup curvature — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2452. Rest consolidation timing — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2453. Small obstacle alignment — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2454. Surface grain substitution — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2455. Water-level oscillation — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2456. Deposition interval ordering — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2457. Sidewall friction asymmetry — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2458. Drainage-before-flow — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2459. Oscillation phase and bed slope — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2460. Acoustic erosion warning — bentonite-sand mixed bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For bentonite-sand mixed bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2461. Flow startup curvature — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2462. Rest consolidation timing — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2463. Small obstacle alignment — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2464. Surface grain substitution — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2465. Water-level oscillation — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2466. Deposition interval ordering — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2467. Sidewall friction asymmetry — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2468. Drainage-before-flow — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2469. Oscillation phase and bed slope — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2470. Acoustic erosion warning — porous ceramic-granule bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For porous ceramic-granule bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2471. Flow startup curvature — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2472. Rest consolidation timing — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2473. Small obstacle alignment — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2474. Surface grain substitution — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2475. Water-level oscillation — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2476. Deposition interval ordering — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2477. Sidewall friction asymmetry — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2478. Drainage-before-flow — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2479. Oscillation phase and bed slope — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2480. Acoustic erosion warning — fine gravel bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For fine gravel bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2481. Flow startup curvature — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2482. Rest consolidation timing — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2483. Small obstacle alignment — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2484. Surface grain substitution — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2485. Water-level oscillation — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2486. Deposition interval ordering — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2487. Sidewall friction asymmetry — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2488. Drainage-before-flow — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2489. Oscillation phase and bed slope — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2490. Acoustic erosion warning — cellulose-fiber sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For cellulose-fiber sand bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2491. Flow startup curvature — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, a smoothly accelerating flow will erode less mass than an abrupt start at equal peak shear and work.
Test: Measure effluent solids and near-bed velocities.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Startup shape has no independent erosion effect.

2492. Rest consolidation timing — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, several short rests will strengthen the bed less than one equal-duration rest.
Test: Measure erosion threshold and bed density after matched histories.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Threshold depends only on total rest time.

2493. Small obstacle alignment — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, staggered low obstacles will reduce connected erosion channels compared with aligned obstacles.
Test: Map bed topography and channel connectivity.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Connected channels are no less frequent after mean shear is matched.

2494. Surface grain substitution — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, sparse larger surface grains will stabilize a disproportionate area around them.
Test: Track erosion maps while varying larger-grain spacing.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Stabilized area is proportional only to covered area.

2495. Water-level oscillation — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, water-level oscillations without mean flow will weaken later erosion resistance.
Test: Measure bed structure and later erosion thresholds.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Resistance is unchanged after saturation and packing are matched.

2496. Deposition interval ordering — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, alternating dilute and concentrated deposition pulses will yield different permeability than steady deposition at equal solids mass.
Test: Measure deposited structure and permeability.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Permeability follows final density alone.

2497. Sidewall friction asymmetry — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, unequal sidewall friction will bias the first erosion channel toward one side.
Test: Reverse wall treatments and map channel onset.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Bias does not reverse with wall friction.

2498. Drainage-before-flow — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, brief drainage before reflooding will increase first-flush sediment loss.
Test: Measure cracks, pore pressure, and initial effluent mass.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: First-flush loss is unchanged after initial saturation is included.

2499. Oscillation phase and bed slope — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, reversing oscillatory flow at slope-favored phases will increase net downslope transport.
Test: Track particles under phase-controlled bed motion and flow.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Transport depends only on mean forcing without a phase effect.

2500. Acoustic erosion warning — layered silt-sand bed
Area: Model sediment erosion and deposition
Type: system-specific member of an experimental family
Hypothesis: For layered silt-sand bed, acoustic scattering will reveal surface rearrangement before measurable bulk sediment release.
Test: Record scattering, bed images, and effluent solids.
Controls: Bed packing, grain distributions, saturation, channel geometry, actual bed shear stress, temperature, and total hydraulic work.
Against: Scattering provides no advance warning on held-out runs.

2501. Substrate delivery geometry — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2502. Wall passivation timing — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2503. Assay depth correction — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2504. Mixing rest ratio — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2505. Product removal scheduling — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2506. Carrier adsorption age — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2507. Thermal equilibration direction — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2508. Reaction-order pulse diagnosis — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2509. Inert crowding spatial pattern — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2510. Parallel blank matching — purified fungal amylase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal amylase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2511. Substrate delivery geometry — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2512. Wall passivation timing — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2513. Assay depth correction — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2514. Mixing rest ratio — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2515. Product removal scheduling — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2516. Carrier adsorption age — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2517. Thermal equilibration direction — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2518. Reaction-order pulse diagnosis — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2519. Inert crowding spatial pattern — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2520. Parallel blank matching — purified plant peroxidase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant peroxidase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2521. Substrate delivery geometry — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2522. Wall passivation timing — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2523. Assay depth correction — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2524. Mixing rest ratio — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2525. Product removal scheduling — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2526. Carrier adsorption age — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2527. Thermal equilibration direction — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2528. Reaction-order pulse diagnosis — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2529. Inert crowding spatial pattern — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2530. Parallel blank matching — purified nonhuman catalase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonhuman catalase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2531. Substrate delivery geometry — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2532. Wall passivation timing — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2533. Assay depth correction — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2534. Mixing rest ratio — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2535. Product removal scheduling — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2536. Carrier adsorption age — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2537. Thermal equilibration direction — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2538. Reaction-order pulse diagnosis — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2539. Inert crowding spatial pattern — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2540. Parallel blank matching — purified yeast invertase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified yeast invertase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2541. Substrate delivery geometry — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2542. Wall passivation timing — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2543. Assay depth correction — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2544. Mixing rest ratio — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2545. Product removal scheduling — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2546. Carrier adsorption age — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2547. Thermal equilibration direction — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2548. Reaction-order pulse diagnosis — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2549. Inert crowding spatial pattern — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2550. Parallel blank matching — purified microbial lactase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lactase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2551. Substrate delivery geometry — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2552. Wall passivation timing — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2553. Assay depth correction — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2554. Mixing rest ratio — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2555. Product removal scheduling — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2556. Carrier adsorption age — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2557. Thermal equilibration direction — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2558. Reaction-order pulse diagnosis — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2559. Inert crowding spatial pattern — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2560. Parallel blank matching — purified nonpathogenic bacterial phosphatase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified nonpathogenic bacterial phosphatase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2561. Substrate delivery geometry — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2562. Wall passivation timing — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2563. Assay depth correction — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2564. Mixing rest ratio — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2565. Product removal scheduling — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2566. Carrier adsorption age — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2567. Thermal equilibration direction — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2568. Reaction-order pulse diagnosis — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2569. Inert crowding spatial pattern — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2570. Parallel blank matching — purified fungal cellulase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified fungal cellulase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2571. Substrate delivery geometry — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2572. Wall passivation timing — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2573. Assay depth correction — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2574. Mixing rest ratio — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2575. Product removal scheduling — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2576. Carrier adsorption age — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2577. Thermal equilibration direction — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2578. Reaction-order pulse diagnosis — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2579. Inert crowding spatial pattern — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2580. Parallel blank matching — purified plant protease assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified plant protease assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2581. Substrate delivery geometry — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2582. Wall passivation timing — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2583. Assay depth correction — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2584. Mixing rest ratio — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2585. Product removal scheduling — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2586. Carrier adsorption age — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2587. Thermal equilibration direction — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2588. Reaction-order pulse diagnosis — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2589. Inert crowding spatial pattern — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2590. Parallel blank matching — purified microbial lipase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial lipase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2591. Substrate delivery geometry — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, distributed substrate injection will reduce apparent induction time compared with one-point injection.
Test: Measure mixing with an inert tracer and product generation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Induction reduction is explained entirely by detection or mixing artifacts.

2592. Wall passivation timing — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, passivation before enzyme addition will improve low-concentration rate repeatability.
Test: Measure active enzyme loss and replicate rates.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Repeatability is unchanged after retained activity is matched.

2593. Assay depth correction — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, shallow reaction layers will reduce rate underestimation from diffusion-limited substrate access.
Test: Compare depth series with independent product sampling.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate estimates are depth-independent after optical path correction.

2594. Mixing rest ratio — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, intermittent gentle mixing will preserve more activity per product formed than continuous mixing.
Test: Measure total product and residual enzyme activity.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Preserved activity is no greater at matched conversion and energy input.

2595. Product removal scheduling — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, periodic selective product removal will reduce rate decline when product inhibition is reversible.
Test: Verify inhibition independently and track rate through removal cycles.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rates fail to recover despite verified product removal.

2596. Carrier adsorption age — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, longer benign carrier adsorption time will broaden release times without increasing active loading proportionally.
Test: Measure active loading, desorption, and product formation.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Release-time broadening follows loading alone.

2597. Thermal equilibration direction — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, warming enzyme and substrate separately will reduce early rate variability compared with warming after mixing.
Test: Measure true reaction temperature and products over time.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Variability is unchanged after temperature histories are included.

2598. Reaction-order pulse diagnosis — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, small substrate pulses will reveal developing transport limitation earlier than endpoint yield.
Test: Compare pulse responses with independent transport and kinetic measurements.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Pulses do not improve identification of transport limitation.

2599. Inert crowding spatial pattern — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, localized inert crowding will produce a different rate map from uniform crowding at equal average concentration.
Test: Map crowding, diffusion, and product while testing for direct binding.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Rate differences vanish after local diffusion and activity are included.

2600. Parallel blank matching — purified microbial glucose-isomerase assay
Area: Cell-free enzyme assay transport
Type: system-specific member of an experimental family
Hypothesis: For purified microbial glucose-isomerase assay, matrix-matched inactive-enzyme blanks will reduce apparent low-rate signals more accurately than buffer blanks.
Test: Use independently known small product additions to compare recovery.
Controls: Use validated compatible benign substrates and detection; match active enzyme, substrate, pH, temperature, optical artifacts, and independently measured intrinsic kinetics.
Against: Matrix-matched blanks do not improve measured product accuracy.

2601. Coupling gradient direction — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2602. Boundary resonator detuning — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2603. Alternating loss distribution — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2604. Off-axis incidence memory — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2605. Distributed leak tolerance — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2606. Humidity stabilization lining — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2607. Element order permutation — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2608. Pulse ringdown separation — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2609. Thermal expansion compensation — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2610. Partial blockage warning — Helmholtz cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For Helmholtz cavity array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2611. Coupling gradient direction — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2612. Boundary resonator detuning — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2613. Alternating loss distribution — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2614. Off-axis incidence memory — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2615. Distributed leak tolerance — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2616. Humidity stabilization lining — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2617. Element order permutation — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2618. Pulse ringdown separation — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2619. Thermal expansion compensation — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2620. Partial blockage warning — quarter-wave tube array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For quarter-wave tube array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2621. Coupling gradient direction — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2622. Boundary resonator detuning — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2623. Alternating loss distribution — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2624. Off-axis incidence memory — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2625. Distributed leak tolerance — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2626. Humidity stabilization lining — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2627. Element order permutation — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2628. Pulse ringdown separation — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2629. Thermal expansion compensation — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2630. Partial blockage warning — membrane-backed cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For membrane-backed cavity array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2631. Coupling gradient direction — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2632. Boundary resonator detuning — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2633. Alternating loss distribution — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2634. Off-axis incidence memory — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2635. Distributed leak tolerance — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2636. Humidity stabilization lining — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2637. Element order permutation — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2638. Pulse ringdown separation — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2639. Thermal expansion compensation — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2640. Partial blockage warning — microperforated panel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For microperforated panel array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2641. Coupling gradient direction — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2642. Boundary resonator detuning — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2643. Alternating loss distribution — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2644. Off-axis incidence memory — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2645. Distributed leak tolerance — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2646. Humidity stabilization lining — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2647. Element order permutation — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2648. Pulse ringdown separation — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2649. Thermal expansion compensation — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2650. Partial blockage warning — labyrinthine channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For labyrinthine channel array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2651. Coupling gradient direction — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2652. Boundary resonator detuning — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2653. Alternating loss distribution — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2654. Off-axis incidence memory — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2655. Distributed leak tolerance — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2656. Humidity stabilization lining — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2657. Element order permutation — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2658. Pulse ringdown separation — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2659. Thermal expansion compensation — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2660. Partial blockage warning — slit-cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For slit-cavity array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2661. Coupling gradient direction — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2662. Boundary resonator detuning — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2663. Alternating loss distribution — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2664. Off-axis incidence memory — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2665. Distributed leak tolerance — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2666. Humidity stabilization lining — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2667. Element order permutation — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2668. Pulse ringdown separation — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2669. Thermal expansion compensation — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2670. Partial blockage warning — flexible-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For flexible-neck cavity array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2671. Coupling gradient direction — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2672. Boundary resonator detuning — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2673. Alternating loss distribution — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2674. Off-axis incidence memory — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2675. Distributed leak tolerance — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2676. Humidity stabilization lining — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2677. Element order permutation — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2678. Pulse ringdown separation — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2679. Thermal expansion compensation — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2680. Partial blockage warning — porous-neck cavity array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For porous-neck cavity array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2681. Coupling gradient direction — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2682. Boundary resonator detuning — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2683. Alternating loss distribution — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2684. Off-axis incidence memory — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2685. Distributed leak tolerance — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2686. Humidity stabilization lining — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2687. Element order permutation — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2688. Pulse ringdown separation — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2689. Thermal expansion compensation — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2690. Partial blockage warning — coupled bottle-resonator array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For coupled bottle-resonator array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

2691. Coupling gradient direction — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, a gradual coupling-strength gradient will shift where sound energy localizes without a comparable shift in the main absorption frequency.
Test: Map local pressure and total absorption with reversed gradients.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Localization fails to reverse or requires a comparable frequency shift.

2692. Boundary resonator detuning — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, slight boundary detuning will reduce sensitivity to mounting changes.
Test: Measure spectra across mount stiffnesses with matched interior elements.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Mount-induced spectral variability is not reduced.

2693. Alternating loss distribution — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, alternating high-loss and low-loss elements will broaden useful absorption more than uniform loss at equal total dissipation capacity.
Test: Measure impedance and absorption with independently calibrated element losses.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Bandwidth is no larger after total loss is matched.

2694. Off-axis incidence memory — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, reversible mechanical deformation will change angular response more than normal-incidence response.
Test: Measure spectra across angles before and during mild deformation.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Angular and normal responses change proportionally.

2695. Distributed leak tolerance — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, many small leaks will degrade peak absorption less than one equal-area leak.
Test: Introduce calibrated leaks and measure acoustic energy balance.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Degradation depends only on total leak area.

2696. Humidity stabilization lining — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, a thin low-sorption lining will reduce humidity-driven resonance drift without materially reducing peak absorption.
Test: Measure absorption and cavity humidity over controlled cycles.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Drift reduction requires a comparable loss of absorption.

2697. Element order permutation — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, ordering elements by resonance frequency will reduce local pressure hotspots relative to random order.
Test: Map pressure and absorption with identical element sets.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Hotspot intensity is unchanged after boundary conditions are matched.

2698. Pulse ringdown separation — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, short-pulse ringdown will distinguish weak coupling changes from material damping more reliably than a single steady tone.
Test: Create independently known coupling and damping changes and test blind recovery.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Ringdown does not improve parameter recovery at equal measurement time.

2699. Thermal expansion compensation — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, a passive neck-length compensator will reduce temperature-driven resonance drift.
Test: Measure geometry and spectra against uncompensated controls.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Resonance drift is no smaller after actual temperature is included.

2700. Partial blockage warning — 3D-printed coiled-channel array
Area: Passive acoustic resonator arrays
Type: system-specific member of an experimental family
Hypothesis: For 3D-printed coiled-channel array, inter-element phase differences will reveal an obstructed opening before mean absorption changes substantially.
Test: Introduce blinded partial blockages and record local phase and total absorption.
Controls: Array size, material loss, total cavity volume, opening area, sound level, boundary mounting, and actual resonant frequencies.
Against: Phase offers no earlier reliable warning at a matched false-alarm rate.

