Bibliographic record
Abstract
The model presented in this paper is the first step towards explaining the mechanisms of ice adhesion. Considerable work, however, remains to validate each term included in the model due to the lack of physical constants and parameters related to rough surfaces. The ice adhesion model at the ice-substrate interface is based on water behavior before and after freezing, substrate roughness and ice type. Within nanoseconds following impact, water occupies the substrate surface either partially before freezing when drops or rivulets form, or totally when a film is formed. The ice surface area in contact with the substrate is reduced due to the space between drops and rivulets. Due to the electrostatic attraction between water and substrate molecules, ice sticks to the substrate. The electrostatic force depends on the intensity of this bond, which is related to the work needed to maintain the drop shape over the surface and the distance between the water and substrate molecules. The water can also sink in and fill the cavities formed by adjacent surface roughness peaks when the surface tension force is less than the water pressure force. Following the phase change, on the order of microseconds for rime ice, and milliseconds for glaze ice, the ice mechanically locks onto the surface and must be broken down to be shed. This paper shows the development of a phenomenological model to predict the cohesive failure of ice, one that does not take into consideration rime ice porosity. The model assumes that ice near its freezing point is subject to internal and external strains, and that its cohesive strength corresponds to the failure stress. The failure stress is dependent on grain size and creep involving grain boundary sliding in a polycrystalline material at elevated temperatures. The next steps in the development of the model are to quantify the physical parameters, validate an idealized rough surface, as well as evaluate the effects of rime ice porosity and small grain sizes.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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".