The tractor industry in the United States
Notice bibliographique
Résumé
The tractor in its early days was known as a "steam plough", "traction engine", and "trackless locomotive". The name "tractor" did not come into common usage until after 1900. The tractor is fundamentally a prime-mover used for towing purposes. Other uses are made of this machine but it still maintains its important function of towing. A quarter of a century ago tractors were being made on a modest scale in the United States. Several of the early companies of that day founded by pioneers in the industry, are today found producing. tractors that bear the names of "Caterpillar", "Hart-Parr", and "International". During this span of years great changes have taken place in the firms, the tractor, and its uses, Prom a crude vehicle then hardly more than an experiment, has emerged a remarkable machine with many possibilities and uses. The production of tractors has kept pace with its development, and from a small number manufactured in the beginning of the twentieth century, the output has grown to 220,000 in recent years. Although originally designed for use on the farm, the tractor has been developed until today it is adaptable to many different uses. Besides being an agricultural implement, it is found in the field of industry as well, performing a multiplicity of tasks more efficiently than ever before. This has been accomplished by years of costly development and research work and the genius of a host of inventors. Dating back to before the Civil War, a need for satisfactory mechanical power on the farm was generally conceded. Shore was the insistent demand for a machine that would do the work cheaper and better than could be accomplished by animal power. A knowledge of the historical development of the tractor to its present advanced stage is necessary in order to better understand the growth of the industry. A clearer concept of the tractor industry, its problems, and future, may best be secured by considering those producing tractors as a whole, rather than dealing with any particular company.
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 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 | 0,001 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,003 |
| Études des sciences et des technologies | 0,001 | 0,001 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,001 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,003 |
| 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 découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, 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 ».