Canadian bag‐in‐box wine under distribution channel abuse: material fatigue, flexing simulation and total closure/spout leakage investigation
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Bibliographic record
Abstract
Abstract Bag‐in‐box (BIB) is a convenient means of wine transportation. One of the materials commonly used, metallized polyester (Met.Pet), has good oxygen barrier properties. However, little is known of the effect of handling and transportation of the BIB on O 2 permeation of the flexible material and the tap under a Canadian distribution system. Our objectives were to characterize the damages to the BIB after actual transportation and distribution, correlate with a standard method for mechanical damage (Gelbo flex cracking) and validate a new capture cell design for the measurement of O 2 leakage from the tap (valve and neck). Damage to Met.Pet occurred mainly near the edges and around the tap. Oxygen transmission rate ranged from 2.45 to 4.99 cm 3 /m 2 ·d·atm for routes of 414–809 km, with storage times of 3–8.1 months. Storage time ( r 2 = 0.83; p < 0.01) was a much better predictor of damage than distance covered ( r 2 = 0.33; NS at α = 0.05), with respect to O 2 permeation. Wear simulation using the Gelbo flex test was significantly related to O 2 transmission rate ( p < 0.01) and was a suitable film pre‐selection method. Converting permeation values back to an equivalent number of cycles (DMZE) shows that minimum damage measured on BIB represents about 43 flexing cycles. Up to 60% of total O 2 ingress in BIB is caused by the tap, an element overlooked by actual standards. 10–16% of tap permeation was due to the neck and valve–neck interface, and the snugness of the fit was particularly sensitive to temperature under our experimental conditions. Copyright © 2005 John Wiley & Sons, Ltd.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.000 | 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