Performance of a Solar Greenhouse under Manitoba's Winter Weather Conditions
Bibliographic record
Abstract
The performance of a solar energy greenhouse, which has been efficiently used in China to grow vegetables and flowers during the wintertime, was investigated under cold Manitoba weather conditions. A 30 m by 7 m solar greenhouse was constructed in Elie, MB. The greenhouse was oriented due south to absorb maximum solar energy, and had a north wall to store solar energy at daytime and release thermal energy at nighttime. The preliminary data showed that the application of solar greenhouse under Manitoba's winter weather was promising. During the month of February the daytime temperature inside the greenhouse was above 15°C and the nighttime temperature stayed above 0°C when the outdoor temperature was as low as - 30°C. Moreover, the comparison between the solar greenhouse and a conventional greenhouse showed that the solar greenhouse was 20°C warmer than the conventional one at night when the outdoor temperature was about -15°C. Without supplemental heating, vegetable seeds geminated well (95% in two weeks) in the solar greenhouse in February, and bedding plants (geraniums) grew well in March.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 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".