Detonation velocity/diameter relation in gelled explosive with inert inclusions
Bibliographic record
Abstract
The detonation velocity is measured in a gelled explosive that has been sensitize via the addition of glass microballoons (GMBs) and additionally diluted via large-scale inert inclusions. The explosive is nitromethane that has been gelled via the addition of poly(methyl methacrylate) (PMMA) and then sensitized via hot-spot inducing glass microballoons (GMBs, 3M K-1). Inert inclusions consisting of pellets of polyether block amide (PEBA, 2–3 mm in size) are then added to the explosive to make a heterogeneous explosive with heterogeneities that are at a scale disparate from those of the microballoons. The PEBA is density matched to the NM/PMMA/GMB mixture such that the large pellets remain in suspension. This system has the potential to be a synthetic explosive that can be tuned to have the properties of morphologically complex commercial blasting explosives. The velocity-diameter and velocity-thickness relation is measured using weakly confined (polyvinyl chloride) cylindrical and slab charges, respectively. The results are also used to further explore the phenomenon of anomalous scaling between axisymmetric and two-dimensional geometries.
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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 | 0.000 | 0.001 |
| 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) | 0.001 | 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 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".