Power and oxygen sources for a diver propulsion vehicle
Bibliographic record
Abstract
Diver propulsion vehicles (DPVs) are used by recreational and military divers. For the latter divers there is a need for special DPVs which have low magnetic and acoustic signatures so that they can operate in areas were mines are known or suspected to exist or dumped munitions. The possibility of constructing a power system for such a DPV was investigated. Since commercial off-the-shelf (COTS) products are being used increasingly in military systems a survey and evaluation of existing power systems technologies was conducted. One of the most viable options identified was the use of a Stirling engine. As part of the military specification was the use of a liquid hydrocarbon fuel it was necessary to explore ways in which the necessary oxidant could be provided, using a commercial product, if possible. In the latter case the use of oxygen candles was identified as a viable option. Thus, a Stirling engine system was designed and a breadboard unit constructed and experimental studies of a COTS oxygen candle were conducted. It was determined that such a combination of oxygen source and energy convertor was worthy of further investigation.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 0.002 |
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".