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Síntese e caracterização de zeólitas ZSM-5 por diferentes rotas e seu emprego na produção de olefinas leves a partir de etanol
(Universidade Federal de Santa Maria, 2014-08-12)
This work aims the synthesis and study of ZSM-5 catalysts for the conversion of
ethanol to light olefins, especially, using an alternative and inexpensive route. The
ethanol emerges as a renewable source for the production ...
Desenho-de-embalagem: o projeto mediado por parâmetros ecológicos
(Universidade Federal de Santa Maria, 2004-10-29)
This work is fruit of the reflection on the professional practice of the designer, be defining factors or delimiting parameters projects to guide the packing design
ecologically correct. In the Chapter I, the Dissertation ...
A atividade projetual do arquiteto orientando o desenho de mobiliário em habitações populares
(Universidade Federal de Santa Maria, 2005-03-24)
The plan of national urbanization of the beginning of century XX, segregated diverse segments of society, culminating with the formation process of the belt
peripheries without infrastructure. A century later, we are ...
Um sistema de informação para controle das Substâncias Químicas de Referência da Farmacopéia Brasileira
(Universidade Federal de Santa Maria, 2004-06-08)
The main purpose of this study was to develop an information system to control the Chemical Reference Standards of the Brazilian Pharmacopoeia (SQRFB), to allow the management of activities related to the develop-ment of ...
O clima organizacional e a qualidade em serviços: um estudo de caso de um grupo de empresas de comunicação
(Universidade Federal de Santa Maria, 2004-05-03)
This research had the main goal to verify the practices used in a interprise controled by RBS (Rede Brasil Sul de Comunicação), about the situation of the people management, to propose improvement in quality of the services ...
Intervalos de predição no modelo beta autorregressivo de médias móveis
(Universidade Federal de Santa Maria, 2016-02-25)
Usual point and interval forecasting based on the autoregressive integrated moving average
models (ARIMA) may not be suitable for modelling variables defined over the interval
(0, 1). In fact, such forecasting effect ...
Controle adaptativo robusto por modelo de referência aplicado ao controle de velocidade e de posição de motores síncronos a ímãs permanentes
(Universidade Federal de Santa Maria, 2011-08-26)
This work proposes two vector control schemes for permanent magnet synchronous
motors. They are destined to speed and position control, respectively, and are based on a
control law called VS-RMRAC. Not being yet applied ...
Avaliação da qualidade de energia e performance de potência de turbinas eólicas conectadas à rede elétrica
(Universidade Federal de Santa Maria, 2010-02-22)
This master thesis describes a system capable of real-time characterization of power performance and power quality of wind turbines, based mainly on the IEC 61400-21 and IEC 61400-12-1 standards. To verify the performance ...
Estudo, controle e implementação do conversor Boost PFC operando no modo de condução mista
(Universidade Federal de Santa Maria, 2009-11-10)
This Master Thesis presents the study and proposes a digital control system applied to the PFC boost converter operating in mixed conduction mode. The motivation to this subject, a bibliographic review of the existing ...
Aspectos técnicos e operacionais do uso de microturbinas conectadas aos sistmas elétricos para geração distribuída de energia
(Universidade Federal de Santa Maria, 2010-06-16)
The considerable increase in energy demand has increased the interest in reducing costs, improving reliability, quality and stability of power generation systems. The connection of distributed generation (DG) can be used ...