Large scale hull loading of freshwater and brackish ice
Bibliographic record
Abstract
The International Northern Sea Route Project addressed the issue of large-scale, ship hull-ice loading, which would be encountered sailing along the Northern Sea Route. Previous work done on ship hull-ice loads has either been measurements with actual ships, small scale model basin tests, or controlled field tests. This project falls into the last category. Phase 1 of this project had been conducted on lake ice near Calgary [1] and had identified the need for further tests on sea ice, focusing on the effects of prior damage on strength, as well as control of rate. To fulfill this requirement, a series of tests in first-year sea ice was carried out at Tuktoyaktuk in the Canadian Arctic. The concept behind these Phase 2 tests was to simulate the impact of a ship hull with an ice cusp. A hydraulic actuator was used to press an indentor plate against the edge of an ice sheet. The objective was to generate loading over a large contact area, 0.3 m2 with a high aspect ratio; i.e., the ratio of the length to height of the contact patch was up to 8:1.
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 | 0.000 | 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) | 0.001 | 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".