Continuous wave photothermal deflection spectrometry based on Fresnel diffraction theory: Experimental applications
Bibliographic record
Abstract
Recently we developed a one-dimensional continuous wave photothermal deflection model based on Fresnel diffraction theory with a set of closed-form analytical signal expressions for both fundamental and second harmonic responses. This article reports its experimental applications in thermal property measurements, demonstrating the simplicity, validity, and usefulness of these analytical signal expressions. The thermal diffusivity of air was found to be (2.2±0.1)×10−5 m2/s that is consistent with literature value; the thermal effusivities of a rubber and a graphite plate sample were determined to be (1.2±0.2)×103 W s1/2 m−2 K−1 and (5.6±0.2)×103 W s1/2 m−2 K−1, respectively, which are in good agreement with the measured values of the same samples by a photoacoustic method.
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How this classification was reachedexpand
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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".