Design of high power underwater laser cutting nozzle
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
According to the principle of the laser spot size requirement and the design principle of Laval nozzle,the part of stable section,contraction section,throat section and expansion section of the nozzle were designed. The size of stable section is mainly limited by the overall size of the laser cutting gun. Contraction section is used to connect the stable period and the throat section by using tangent arc transition. In order to ensure the laser go smoothly through the throat,throat diameter must be greater than the laser spot diameter. Expansion section adopts linear expansion method,in view of the cutting seam width limit,divergence angle should not be too large. According to the design size,the supersonic Laval nozzle was manufactured,the jet velocity and stiffness of oxygen flow was improved. In underwater laser cutting experiment,using the local drainage method and larger oxygen flow,30 mm thick carbon steel plate was cut smoothly. Compared with the convergent nozzle, the cutting effect of the supersonic nozzle has been obviously improved
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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