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2.080  Articles
1 of 208 pages  |  10  records  |  more records»
The comparison of technical and economic parameters of modern intermediate fastenings is made and the prospect of their further development is analysed in this article.

The present investigation this focused in evaluating the methodologies used in the Nineties in projects of agricultural type, particularly in the districts of irrigation, by identify the theoretical and technical and operative strengths and weaknesses in ... see more

The comparison of the energy performance of the main schemes of valve converters of electric energy parameters: currents, voltages, installed powers. Recommendations for their optimal use are done

The use of systems of the quasi–continuous adjusting the wagon speed on the marshalling tracks contributes to the improvement of indices of occupation quality of marshalling tracks with wagons. These indices characterize different sides of the occupation ... see more

Variabilidad espacial de la velocidad de infiltración del agua en el suelo. I. Generación de datosCiencia e Investigación Agraria, Revista latinoamericana en Ciencias de la Agricultura, está indexada en las siguientes bases de datos: Thomson ISI, Alerta a... see more

Makalah ini bertujuan mengkaji kelayakan ekonomi produksi nanopartikel Fe3O4 dari skala laboratorium menjadi skala industri. Evaluasi dilakukan menggunakan 2 model studi kelayakan, yaitu: analisis teknik dan evaluasi ekonomi. Analisis teknik memberikan in... see more

The major part of the locomotives under operation requires increase of the maintenance and repair expenditures by 40-60% in comparison with the modern models. Creating a hybrid shunting locomotive is an effective solution to the shortage of finance and th... see more

This research work was conducted in order to asses the socio-economic and technical aspects of backyard animal rearing in two communities of Yucatán, México. One hundred and thirty nine families were interviewed in Sudzal (C1) and 117 families in San Jose... see more

The article deals with the development of an innovative model of traction transmissions of railway vehicles with a higher technical level, which allows to eliminate the existing shortcomings of the mechanical system, simplify the repair processes and redu... see more

1 of 208 pages  |  10  records  |  more records»