Full scale testing of an instrumented conventional lifeboat - trials review and analysis
Bibliographic record
Abstract
This report describes a set of open water trials; performed on a full-scale conventional totally enclosed motor propelled survival craft. These trials were run as part of the “Performance and Survivability of Totally Enclosed Motor Propelled Survival Craft (TEMPSC) in Level and Pack Ice Conditions” project sponsored by the Program of Energy Research and Development (PERD) Marine Transportation and Offshore Safety Program. The objective of the PERD project is to evaluate the performance of evacuation craft (lifeboat) in environments where floating ice is present, as well as to recognize improvements that may be implemented. The aforementioned trials took place in November 2008, out of MUN/MI’s Holyrood facility, located on the north side of South Arm, Holyrood Bay, opposite the marina. To fully test the performance of the modified lifeboat, a number of open water tests were performed. These included both non-standard turning circles and collision avoidances. The raw data from the trials initially had to be calibrated, using a calibration file and in-house software called IOTDataLoggerCal. Once each file had been calibrated, it was loaded into IGOR, an integrated program for visualizing, analyzing, transforming and presenting data. Data analysis proved that there is a much smaller diameter for the port side turns than there is for the starboard turns. When comparing upwind and downwind turns the results seemed to be extremely varied, indicating that the direction of travel in terms of wind direction had no significant effect on turn diameter. The initial speeds, speed during the turns, and final speed varied slightly for each trial and this may mislead the comparison. The plots of Turn Diameter verses Rudder Angle indicated that as the rudder angle used in the turn increased, the turn diameter decreased.
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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 | 0.034 | 0.054 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.003 | 0.002 |
| Bibliometrics | 0.003 | 0.003 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.004 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".