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Itens para a visualização no momento 31-40 of 81
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 ...
Reações de 3-trialoacetil-4,5-diidrofuranos e 5-trialoacetil-3,4-diidro-2H-piranos com aminas e álcoois
(Universidade Federal de Santa Maria, 2003-03-21)
This work presents the synthesis of α-alkylaminomethylene-γ-
lactones 8 (one pot reaction) and α-alkylaminomethylene-δ-lactones 9 (two steps
reaction), from the reaction of 3-trichloroacetyl-4,5-dihydrofuran (3) and ...
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 ...
Aplicação de carbocátions calcogênio estabilizados na síntese de 1,2,3,4-tetraidroisoquinolinas funcionalizadas
(Universidade Federal de Santa Maria, 2003-04-15)
Unable to insert abstract.
Síntese de sulfetos e dissulfetos aziridínicos quirais e aplicação em catálise assimétrica
(Universidade Federal de Santa Maria, 2003-03-12)
Unable to insert abstract.
A voz do professor: instrumento de trabalho ou problema no trabalho?
(Universidade Federal de Santa Maria, 2003-12-09)
The object of study in this research was to investigate. The knowledge and the
relations that the Chil Education and Beginning years of the Elementary School, of
the School municipality of Santa Maria – RS, establish ...
Análise do comportamento estrutural de pavimentos rodoviários e urbanos construídos na região de Santa Maria
(Universidade Federal de Santa Maria, 2003-09-19)
In this work, it was analyzed, under the light of the resistance and
resilience, the structural behavior of the pavements of Santa Maria
Contour, BR-158, executed in 1971 and 1973 and the executed
reinforcements in 1977 ...
Idéias para a reconstrução do programa de filosofia para crianças
(Universidade Federal de Santa Maria, 2003-06-11)
The present dissertation aims at the discussion of the Children Philosophy by the North American professor Matthew Lipman. The main objective is the sayings of reasoning, through a philosophical educational view, proposing ...
Síntese de eninos e enediinos por acoplamento de acetilenos terminais com dicloretos de diorganoil telúrio (IV)
(Universidade Federal de Santa Maria, 2003-02)
In this work, we have developed an efficient method to prepare enynes and
enediynes, by cross-coupling reaction of diorganyl tellurium (IV) dichlorides and
terminal alkynes. [...]