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Itens para a visualização no momento 21-30 of 148
Contribuições ao controle do motor síncrono de ímã permanente com FCEM não senoidal
(Universidade Federal de Santa Maria, 2015-08-20)
This thesis presents contributions to the sensorless vector control of Permanent
Magnet Synchronous Motors (PMSM) with nonsinusoidal back Electromotive Force (back-
EMF), whose magnets are allocated on the rotor surface. ...
Concepção de um conversor DC-DC auto-oscilante aplicado a um sistema energy harvesting
(Universidade Federal de Santa Maria, 2015-09-01)
This thesis aims to present the design and development of a self-oscillating DC-DC converter applied to an Energy Harvesting (EH) system. The relevance of this study is caracterized by the proposed standard analysis with ...
Aplicação da metodologia seis sigma para avaliar a produtividade de um processo de britagem
(Universidade Federal de Santa Maria, 2015-03-10)
Nowadays, organizations face a highly competitive environment where customer satisfaction and loyalty are important factors for success. In this scenario, it is necessary to use performance improvement methods of production ...
Alvenaria estrutural: construindo conhecimento
(Universidade Federal de Santa Maria, 2015-08-18)
Innovations in building systems over the years have raised the masonry, through large and important works built in the past, allowing the understanding of logic and design of the elements and materials used, as well as its ...
Análise da abordagem e resultados da produção mais limpa em empresas do núcleo de extensão produtiva e inovação da região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2015-08-17)
Balancing sustainable development with high productivity is a major current challenges, especially regarding the search for alternatives and technologies focused on devising processes and products that do not generate or ...
Análise da organização formal dos processos de trabalho dos hospitais universitários federais do RS: segurança dos pacientes e dos profissionais
(Universidade Federal de Santa Maria, 2015-02-27)
This study aimed to analyze the formal organization of work processes in the four Federal University Hospitals of RS, Brazil, from the perspective of quality and safety of patients and professionals. This is a descriptive ...
Análise da permeabilidade de argamassas estabilizadas submetidas a tratamento superficial com aditivos cristalizantes
(Universidade Federal de Santa Maria, 2015-08-27)
Water presence is one of the major causes of pathological manifestations in mortar coatings. Such problem endangers the material durability, and the protection ability of these coatings, thus allowing early degradation of ...
Análise de contaminação em solo e água subterrânea por hidrocarbonetos derivados de petróleo
(Universidade Federal de Santa Maria, 2015-08-06)
This research aimed to delineate the contamination plume, coming from a leak in the fuel station dealer, penetrating crystalline aquifer in the Rio Grande do Sul state southern Brazil. Determined with the use of a steam ...
Análise dinâmica de torres estaiadas de linhas de transmissão submetidas à ruptura de cabo
(Universidade Federal de Santa Maria, 2015-02-10)
The need for transmission lines expansion (TL) is evident in the face of growing electrical energy demand in Brazil as well as the great distances between generation and consumption centers. It is known that numerous ...
Fator de eficiência da resistência prisma/bloco cerâmico de paredes vazadas
(Universidade Federal de Santa Maria, 2015-01-22)
The Brazilian civil construction showed in the last few years a large increase in technology, thus increasing the competitiveness in the labor market. In order to remain in compliance with the standard requirements, builders ...