Ultrasonic standing wave patterns in a petri-dish
Bibliographic record
Abstract
A standing wave is well developed in a petri-dish used for cell culture, which is subject to the height of the culture fluid. A simple acoustic theory states that the pressure at the bottom of the petri-dish varies from 0 to its maximum while the height varies over a half wave length of the driving ultrasound. This suggests that the standing wave pattern should be taken into account when the cell line in a petri-dish is exposed to ultrasound. The present study has experimentally verified the theoretical prediction using the pressure sensitive film attached to the bottom of the petri-dish, when water, instead of the culture fluid, was contained in the dish. The driving field was made of 1 MHz transducer (V316, Panametrics, USA). Gradual destructuring of the standing wave patterns was observed as the driving power increased and, thus, the surface of water was becoming more fluctuating. Keywords, standing wave, petri-dish, cell, culture fluid, monitoring
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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 | 0.000 | 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 | 0.001 |
| 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 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".