Mechanical properties of bamboo after exposure to low temperatures
Bibliographic record
Abstract
Interest in bamboo as a building material has recently expanded beyond regions traditionally associated with its use. Advantages of bamboo over conventional building materials include a short harvesting time and competitive mechanical properties. This research evaluates the extent to which colder climates may affect the viability of bamboo as a building material in countries with shorter construction seasons. Phyllostachys edulis (Moso) bamboo samples were subjected to freeze–thaw (FT) cycles under wet and dry conditions, and over 100 small-scale tests were performed. Analysis of variance (ANOVA) tests suggest that FT cycles did not significantly affect tensile properties or shear strength perpendicular-to-culm, nor the mechanical properties of samples tested in dry conditions. However, FT in wet conditions resulted in a statistically significant reduction in compressive and shear parallel-to-culm strength of 18% and 21%, respectively. The results suggest that bamboo may be a potentially viable building material in colder climates if protected against excessive moisture ingress.
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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 | 0.000 | 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".