Development and Application of the New Explosive Loading Experimental System of Digital Laser Dynamic Caustics
Bibliographic record
Abstract
Abstract The new explosive loading experimental system of digital laser dynamic caustics was developed by replacing the conventional multi-spark point source light and the previous multi-frame film camera with the solid-state laser and the digital high-speed camera, respectively; namely, a new caustics experimental system of high-speed photography system using a combination of solid-state laser and digital high-speed camera was created. This new experimental system was used to conduct the crack propagation test of single-borehole explosion with defective medium and the double-boreholes explosive loading experiment to obtain the clear digital caustics photos. If compared with the conventional optical photos, these digital photos were found to be clearer with more reliable results and longer recording time, which demonstrates that the new system can meet the requirements of ultra-dynamic fracture problems such as blasting. The new optical system is simple, user-friendly, which ensures a low experimental cost, short cycle, and the continuous observation throughout the fracture process.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".