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Proposta, análise e implementação de técnicas de comutação sob tensão nula aplicadas a fontes cc-cc isoladas para telecomunicações
(Universidade Federal de Santa Maria, 2003-08-13)
Dc-dc isolated converters with Zero-Voltage-Switching are proposed and studied in this
thesis. Special attention is focused on converters with series switches connections, which
allow the use of switches designed for ...
Reator eletrônico auto-oscilante com alto fator de potência para alimentação de quatro lâmpadas fluorescentes independentes
(Universidade Federal de Santa Maria, 2004-02-27)
This work describes a high-power-factor electronic ballast to supply four
fluorescent lamps independently. Fluorescent lamp operational aspects are
discussed, and a mathematical model to simulate the fluorescent lamp ...
A eficiência energética, a informação e a qualidade total da energia elétrica no modelo em desregulamentação
(Universidade Federal de Santa Maria, 2003-04-29)
The tools of the Total Quality bring the Efficiency Energy availablely and
moving electric energy for the productive sections and a better life quality
to the final user. This work evidences that the knowledge ...
Controle adaptativo robusto de tempo discreto por modelo de referência e controle repetitivo
(Universidade Federal de Santa Maria, 2003-07-18)
This work is motivated by the recent advances in the electrical-electronics and in
process control field, that extensively use microprocessing systems and require apropriated
good performance control techniques with the ...
A influência da finura e do teor de adições minerais na carbonatação do concreto
(Universidade Federal de Santa Maria, 2002-05-06)
This work aimed at to investigate concrete carbonation due to the amount and
fineness variations in pozzolanic cementitious mixtures. The binary mixtures with fly
ash, rice husk ash and silica fume were obtained substituting ...
O uso do brise-soleil na arquitetura da região central do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2005-12-20)
The brise-soleil appeared due to the protection need against excessive solar radiation, which can cause discomfort for the high heat and the disarray in the admission of natural light. Apart from this function, that element ...
Sistema de aquisição de dados e condicionamento de sinais para medição de desempenho de veículo Baja SAE
(Universidade Federal de Santa Maria, 2022-10-07)
The Baja SAE (Society of Automotive Engineers) project, is a challenge to the students, which enables the future engineers to apply their knowledge on the project and manufacturing of an off-road vehicle. The finality of ...
Planejamento de uso e ocupação do solo visando o manejo sustentável das águas pluviais
(Universidade Federal de Santa Maria, 2022-10-19)
The land use planning in urban areas is a legal instrument that guides the cities development,
normally presented as a Land Use/Cover Plan (LUCP) and has direct consequences in many
urban infrastructure services, such ...
Avaliação da propaganda farmacêutica e do relacionamento do propagandista junto à classe médica
(Universidade Federal de Santa Maria, 2008-08-29)
This work starts from the general objective of measuring the importance of the propagandist in the spreading about the pharmaceutical products to the medical group with the purpose of improving the marketing of relationship ...
Estudo numérico da transferência de calor na alvenaria com blocos cerâmicos em situação de incêndio
(Universidade Federal de Santa Maria, 2022-10-04)
As the availability of computational resources grows, the use of numerical models to solve
thermal problems has been widespread and recommended. In problems related to the
performance of buildings in a fire situation, ...