The effects of buoyancy convection on the measured solute diffusion coefficients in dilute metallic liquids
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Bibliographic record
Abstract
In order to determine the effect of gravity on the results from earlier liquid diffusion experiments in low earth orbit, comparative experiments involving gold, silver, and antimony diffusing in liquid lead have been carried out using the Queen’s University Experiments in liquid diffusion ground-based unit under terrestrial conditions. It was found that buoyancy-driven convection still persists in the liquid even when conditions are arranged for a continuously decreasing density gradient up the long axis of a melted long capillary diffusion couple. It is suggested that radial temperature gradients in the diffusion samples cause such buoyancy-driven convection, and so enhance the solute transport and increase the measured diffusion coefficient (D) values; however, it is noted that if the density of the solute is considerably less than that of the solvent, then the convective flow and the corresponding solute transport are much reduced.
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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)
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 it