Acoustic black holes and de Laval nozzle
Bibliographic record
Abstract
I buchi neri acustici sono l'analogo sonoro dei buchi neri gravitazionali. La loro base teorica è l'analogia formale tra due tipi di equazione d'onda: quella per la perturbazione del potenziale della velocità in un fluido non viscoso e inomogeneo e quella per un campo scalare in uno spazio-tempo curvo. Nel presente lavoro, in primo luogo vengono introdotti gli elementi fondamentali della Relatività Generale. In secondo luogo, vengono mostrate la metrica di Schwarzschild e la sua rappresentazione nelle coordinate di Painlevé-Gullstrand. Successivamente, la parte principale di questa tesi è dedicata alla derivazione della metrica acustica e allo studio di buchi neri acustici a simmetria sferica o unidimensionali. Per quanto riguarda questi ultimi, viene illustrato l'ugello di Laval, essendo un possibile modello per realizzare sperimentalmente buchi neri acustici.
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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 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.001 |
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".