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Record W4416146203 · doi:10.1364/josab.578539

Temperature dependence of microwave resonances in saline aqueous spheres [Invited]

2025· article· en· W4416146203 on OpenAlexfundno aff
Yuchen Song, Aaron D. Slepkov

Bibliographic record

VenueJournal of the Optical Society of America B · 2025
Typearticle
Languageen
FieldChemistry
TopicMicrowave-Assisted Synthesis and Applications
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsMicrowaveAbsorption (acoustics)DielectricAqueous solutionThermalMicrowave heatingRefractive indexInternal heatingSPHERESMicrowave cavity

Abstract

fetched live from OpenAlex

Heating via the absorption of microwaves in water is the underlying physical mechanism of microwave food processing. Here we show that while bulk heating can contribute at all sizes and shapes, water’s high refractive index at 2.45 GHz means that resonant heating can also contribute—and perhaps even dominate—at particular shapes and sizes, modifying heating rates and internal field distributions. The temperature dependence of the dielectric susceptibility of water gives rise to an evolving resonant landscape as an aqueous object heats up. In water-laden spheres, these changes include shifts in the resonant conditions that can lead to self-tuning, where the system stabilizes on resonance, and/or thermal runaway, where the system steadily drifts away from resonance. Salt content likewise alters the dielectric properties of water, in terms of both absorption and refraction. High salinity, for example, both broadens and weakens the optical resonances, promoting more uniform heating rates across a range of sizes.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.005
Threshold uncertainty score0.018

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0050.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.243
Teacher spread0.236 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2025
Admission routes1
Has abstractyes

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Same venueJournal of the Optical Society of America BSame topicMicrowave-Assisted Synthesis and ApplicationsFrench-language works237,207