Wind speed in easily assembled premises with different design constructions for side curtains in winter
Notice bibliographique
Résumé
This work aimed to identify the influence of the environment wind speed over similar indicators in easy-to-assemble premises of different configurations and insulation systems in the winter period. Air movement speed in the livestock room is also essential and affects animal and human bodies. At low temperatures in winter, a significant speed of air movement causes hypothermia in animals. High indoor wind speed can indicate the mistakes which had been made when choosing a farm location. The research was conducted in the central Forest-Steppe of Ukraine (Kyiv region) in three farms with free-stall housing of cows: option I – keeping in an easy-to-assemble room; option II – In an easy-to-assemble room with curtain insulation; option III – In an easy-to-assemble room on a deep straw litter within the period from December 1, 2019, to February 29, 2020. It has been established that the territory of the central part of Ukraine during the winter period of the year is characterized by the dominance of winds of the southern (South), south-eastern (South-East), and south-western (South-West) directions, which amount is more than 50% of average wind rose. The cold winds from the north and east constitute 31%. The average wind speed in winter is 9.8 m/s. The results of the research have shown that the use of insulation systems for side curtains can extend for 13 days the permissible norms of wind speed indoors and protect more effectively from the environment during all categories of wind speed, as well as reduce wind speed indoors by 11.68–21.74% compared to an easy-to-assemble box and deep litter. Keywords: dairy cows, cold weather, wind speed, easy-to-assemble premises References Ames, D.R., & Insley, L.W. (1975). Wind-chill effect for cattle and sheep. Journal of Animal Science, 40, 161–165. doi: 10.2527/jas1975.401161x. 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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.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| 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 | 0,001 | 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) | 0,001 | 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 découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».