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Reator eletrônico para lâmpadas de descarga em alta pressão baseado no conversor biflyback inversor
(Universidade Federal de Santa Maria, 2011-07-26)
The study of the best utilization of high intensity discharge lamps deals with the great global concern with energy efficiency. Electronic ballasts are the current devices that can make the good use of high luminous efficacy ...
O marketing de rede como estratégia para o desenvolvimento sustentável
(Universidade Federal de Santa Maria, 2011-08-25)
The third sector in Brazil is an industry with great growth potential, but due
tomismanagement performed, the non-governmental organizations end up using
the funds raised only for their survival. Thus, the investment ...
Análise mecânica e química de placas pré-moldadas de concreto com adição de resíduos de borracha de pneus
(Universidade Federal de Santa Maria, 2012-09-28)
This work aims to analyze a building system that utilizes alternative material and residues of tire rubber in community housing. Primarily, this work shows a review of literature concerning housing, debit, environment, ...
Regime hidrológico de duas microbacias contíguas: um comparativo entre uso urbano e rural
(Universidade Federal de Santa Maria, 2012-02-27)
The human action induces changes in basins natural runoff. Flooding may become more
intense, there may be more immediate and prolonged droughts, an accelerated erosion
process and water quality tends to deteriorate. ...
Análise comparativa da energia injetada na rede por inversores módulos CA utilizados em sistemas fotovoltaicos
(Universidade Federal de Santa Maria, 2013-05-29)
This Master's Dissertation aims to compare two topologies of AC Module converters, applied in photovoltaic systems. The principles of operation, the characteristic equations, the parameters found are detailed for both ...
Gestão de riscos de segurança da informação baseada na norma NBR ISO/IEC 27005 usando padrões de segurança
(Universidade Federal de Santa Maria, 2013-02-26)
In the last years more vulnerabilities and threats have emerged, compromising information
security in Information and Communication Technology (ICT) systems. In addition, many
organizations are unprepared to deal with ...
Avaliação do desempenho térmico em edificações de blocos estruturais cerâmicos e de blocos estruturais de concreto para a zona bioclimática 2 brasileira
(Universidade Federal de Santa Maria, 2012-09-18)
Structural masonry has been used more and more in Brazil, but this technology
has limitations on research which report its thermal behavior. In Rio Grande do Sul, the
clay structural block is the most widely used, while ...
Reconfiguração de redes de distribuição considerando multivariáveis e geração distribuída
(Universidade Federal de Santa Maria, 2014-02-28)
The new design of electric power system, called Smart Grid, has emerged as a new challenge
especially for power distribution networks, which need to promote greater functionality such
as real-time monitoring of the ...
Modelagem e controle de um reator eletrônico para lâmpadas HPS baseado na conexão diferencial de conversores CC
(Universidade Federal de Santa Maria, 2012-02-28)
This paper presents the development of an electronic ballast for high intensity discharge lamps, using the differential connection technique applied to Flyback converters. The power factor correction stage was implemented ...
Estudo da viabilidade técnica da aplicação de solo saprolítico melhorado com cimento como base de pavimento de baixo custo
(Universidade Federal de Santa Maria, 2012-12-28)
When analyzing the road network of the country, it is noticed that the
extension of paved roads is very small. This fact is mainly due to reduced public
resources and the high costs of traditional materials utilized in ...