<scp>R</scp>aman Spectroscopy for the Study of Molecular Order, Thermodynamics, and Solid–Liquid Transitions in Triacylglycerols
Bibliographic record
Abstract
Abstract The use of Raman spectroscopy for the study of the molecular order in triglycerides is explored, with emphasis placed on three key spectroscopic fingerprints: (i) the CH stretching region at 3000–2700 cm−1, (ii) the ester carbonyl (CO) stretching region at 1780–1700 cm−1, and the CC stretching region at ∼1200–1100 cm−1. Triglyceride polymorph and phase‐dependent changes related to the aliphatic chain and glycerol backbone conformation and packing, as well as changes in local environment, are ascertained on the basis of shifts in these bands. In particular, the ester carbonyl stretching region demonstrates clear differences between triglycerides polymorphs, as changes are seen in the number, stretching frequency, and size of the modes present. Besides, phase transition enthalpies are extracted from the Raman spectra of triglycerides studied. This chapter demonstrates that Raman spectroscopy is a viable tool for the characterization of triglycerides.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.137 | 0.067 |
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 source (direct Gemma or distilled Codex), 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".