Bibliographic record
Abstract
In the event of a mine emergency that prevents escape, shelter and await rescue may be the best option. Shelter systems have been used in numerous applications over the decades; fall out shelters, control room shelters, and submarine escape compartments to name a few. This paper will report the atmosphere control capabilities of manned shelter tests conducted at the Logan, West Virginia coal mine in September 2007 and at the Cameco McArthur River uranium mine in August 2008. Micropore teamed with Mine Lifeline LLC to support the Logan test and with Cameco Corp. to conduct the McArthur River test. For these manned tests, carbon dioxide was controlled by deploying ExtendAir® brand CO2 absorbent lithium hydroxide curtains manufactured by Micropore, Inc.. Oxygen was supplied into the shelter from high pressure cylinders via pressure regulators. The ExtendAir® lithium hydroxide curtains and the make-up oxygen were set out based on a predetermined schedule. A common goal of these tests was to demonstrate the proper function of the atmosphere control system and validate the deployment schedule for carbon dioxide control curtains and make-up oxygen. This paper will report the carbon dioxide concentrations and ExtendAir® absorbent curtain performance over the course of the test. Ambient oxygen concentration and oxygen supply rate will also be reported. Both tests were completed successfully. The refuge chambers maintained a life supporting atmosphere with comfortable ambient temperature and humidity.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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 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".