Experimental thermal time estimation for Mach‐Zehnder interferometer to study coupled heat and mass transfer
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Bibliographic record
Abstract
In the present investigation, a theoretical approach and experimental models are discussed for estimating the experimental thermal time of an optical digital interferometry experiment. The investigation deals with coupling between heat and mass transfer phenomena. Mach‐Zehnder Interferometry has been found to be an accurate and precise experimental tool for visualizing the thermodiffusion phenomenon inside a parallelepiped cavity, when a thermal gradient is applied to its two opposite sides. Processing the results of this experiment requires distinguishing the two experimental phases: 1) refractive index changes due to change of temperature and 2) refractive index changes due to the separation of the components. We can separate these two phases according to the thermal time of the liquid mixture. In previous studies L 2 / χ ( L = distance between hot and cold sides, χ = thermal diffusivity of the mixture) was used as the thermal time of the liquid. However, due to a high separation rate at the beginning of the thermodiffusion process, an accurate estimation of the thermal time can significantly affect the final result of the interferometry measurements. Here, a theoretical approach and an experimental method were developed to estimate the proper thermal time for this experiment. We also discuss the importance of precisely estimating the thermal time on the experimental results. This study shows that assuming thermal time equals L 2 / χ may cause noticeable underestimation when measuring the Soret coefficients and maximum separation values.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it