Influence of Climatic Parameters on Changes in the Density and Viscosity of Diluted Bitumen after a Spill
Bibliographic record
Abstract
Nonconventional oil products (Access Western Blend [dilbit], Western Canadian Select [dilsynbit], and Synthetic Bitumen [synbit]) and a conventional crude (Heidrun) were naturally weathered on sea water under spring (April-May) and summer (July-August) conditions to improve our understanding of the effects of climatic parameters (air and water temperature, wind speed, and light intensity [solar radiation]) on their density and viscosity. The physical properties data, from each experiment, was fitted to a previously developed hyperbolic function that captured different rates of changes in densities and viscosities of the oils due to preferential weathering of the diluent portion of the diluted bitumen products. A combination of multiple correlation and regression analysis of experimental data over two seasons revealed that there were significant (p<0.05) trends among the measured climatic parameters and the changes in the densities and viscosities of oils after a spill. Analysis of variance (repeated measures) showed that seasonal conditions had a significant (p<0.01) effect on the changes in the physical properties of all oils after release. These results on key factors which control the rates of natural attenuation for nonconventional oils spilled on water will aid decision making during oil spill preparedness and response operations.<div><br></div>
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".