Retrofitting variable flow axial fan by inverter control at the Kan-etsu Tunnel
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The Kan-etsu Tunnel is the longest mountain tunnel in Japan, with a length of approximately 11 km, and longitudinal ventilation is operated using fans installed in two underground ventilation stations and one precipitator room on each of the outbound and inbound tunnel. These fans have a variable rotor blade angle in consideration of air volume adjustment and the effect on the electric motor. In recent years, there have been occasional cases which it has become difficult to adjust the blade angle of the fans installed in the precipitator room due to rust caused by antifreeze sprayed in winter. Therefore, it was required to consider upgrading the system to one with a fixed blade angle and variable motor speed controlled by an inverter. This report describes the results of tests conducted during the retrofit and the operating status after the retrofit.
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.
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 | 0.001 | 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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 it