Field investigation and laboratory testing of exposed vinyl roof systems
Pourquoi ce travail est dans la base
Une base qui oublie comment elle a trouvé un travail ne peut pas être vérifiée. Voici les voies qui ont admis celui-ci.
Notice bibliographique
Résumé
In 1999, a major manufacturer of thermoplastic membranes set out to 'quantify and qualify' how their oldest roofs in the United States and Canada were performing. This information was critical for their Life Cycle Cost Data. The process was as follows: This manufacturer reviewed their internal project data base and project files to determine the oldest project in each of their regions. The regions attempted to contact each owner of the building. Approximately 70% of the owners were contacted because some of the buildings were vacant or torn down. A survey was sent to the building owners of 70 of their oldest projects in the U.S and Canada (range 17-22 years old). Some surveys were filled out over the telephone. The response rate was 63%. All surveys were collected and statistics created. In 2001, the manufacturer sampled 25 of these projects in all regions and climates and invited roof consultants and architects to participate in field investigations and roof sampling. The specific roofs sampled in these different regions and climates were selected solely as a matter of convenience. That is, the roofs were samples when owners provided the manufacturer permission to do so and when the costs of accessing the selected roofs were reasonable.Samples were packaged and sent to the National Research Council of Canada (NRCC). The NRCC tested samples according to ASTM D4434 [1] (where appropriate) for thickness, tensile strength, elongation, linear dimensional change, low temperature flexibility and seam strength. It should be noted that D4434 [1] was established in 1985 and was the first ASTM standard for any single ply roof membrane in the U.S. Most of the roofs sampled were installed before the standard even existed. All of the roofs investigated and sampled were found to be in good shape. No immediate maintenance or repairs were needed. After sampling all of the existing roof membranes could be easily patched by hot air welding.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle