Now showing items 1-10 of 867
Contribution of social, spatial, and economic frictions to the socioeconomic school segregation : evidence from Chile.
(2019)
A growing body of research has shown that increasing freedom of school choice
may lead to higher socioeconomic school segregation. However, the evaluation
of related educational policies requires a deeper understanding of ...
Influence of Bobbin Tool Friction Stir Welding (BT-FSW) variants on the microstructure and properties of AA2060 and AA2196 aluminum alloys
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2020-06-18)
In order to reduce total costs in aircrafts production, operation and maintenance, materials and processing techniques have been continuously further optimized. In this scenario, aluminum-lithium alloys have been studied ...
Identificación experimental de la fricción en las transmisiones accionadas por cable
(Universidad Nacional de ColombiaManizales - Ingeniería y Arquitectura - Doctorado en Ingeniería - AutomáticaDepartamento de Ingeniería Eléctrica y ElectrónicaFacultad de Ingeniería y ArquitecturaManizales, ColombiaUniversidad Nacional de Colombia - Sede Manizales, 2022)
En esta tesis se propone un modelo de fricción empírico para transmisiones tipo polea-cable que incluye en su formulación, además de la velocidad, el efecto de la carga externa y la relación de transmisión. Los experimentos ...
União pontual por fricção (“friction spot joining”) de alumínio 6181-T4 com compósito laminado de poli(sulfeto de fenileno) e fibra de carbono (CF-PPS)
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2015-02-26)
The friction spot joining (FSpJ) emerges as an alternative and innovative
technique for producing polymer-metal hybrid structures. This technique was
developed and patented by HZG / Germany in 2012. The process uses ...
Process parameters optimization and microstructure evaluation on friction spot-welded aluminum/copper dissimilar joints
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2016-11-17)
Dissimilar materials welding is a field of increasing interest for a wide range of industrial applications. Specifically, the welding of aluminum alloys with copper has potential applications in the heating, ventilation ...