Comparing the Whole Body Vibration Exposures across Three Truck Seats
Bibliographic record
Abstract
Studies have shown that there are differences in whole body vibration (WBV) exposures and WBV attenuation performance among different suppliers of air suspension truck seats. With 17 truck drivers operating semi-trucks over two common road types (the same highways and dirt roads), WBV exposures were measured and compared across three different air-suspension truck seats. Similar to a previous study, in the higher-speed, on-road highway conditions, one seat was found to have higher WBV exposures and lower WBV attenuation performance. In off-road conditions at slower speed, there were negligible differences across the three seats. These differences in seat performance have important practical implications. The higher performing seats nearly doubled the amount of time drivers could operate their trucks before reaching the ISO daily vibration action limits from 3 to 6 hours a day to 9 to 11 hours a day. Seat suspension-based design differences are thought to account for the performance differences.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.002 | 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".