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Controle individual de passo para turbinas eólicas utilizando controlador adaptativo
(Universidade Federal de Santa Maria, 2019-02-26)
This Master Thesis deals with the problem of reducing the resulting asymmetrical
mechanical loads on the structure of large wind turbines, with horizontal axis and three
blades, by means of individual pitch control of ...
Análise do modo de ruptura e previsão de resistência à compressão de prismas de alvenaria estrutural de blocos cerâmicos e de concreto
(Universidade Federal de Santa Maria, 2019-02-27)
The biggest challenge of structural masonry is to correlate the set bedding mortar-block and transform it into a ductile system, with a predictive behaviour, as these materials own properties and different compositions ...
Monitoramento e acionamento remoto da movimentação e arrefecimento de painéis fotovoltaicos para maximização da potência e eficiência
(Universidade Federal de Santa Maria, 2019-03-07)
The world's electricity consumption increases every day along with concerns about the
environment. In order to supply the increase in the demand for electric power in Brazil there
has been in recent years a great expansion ...
Regime de escoamento do Rio Uruguai no trecho entre a hidrelétrica de Foz do Chapecó e o Salto do Yucumã
(Universidade Federal de Santa Maria, 2019-02-27)
The Uruguay River, due to its hydrodynamic and topographic characteristics, is considered one of the main national water courses for hydroelectric use and, consequently, subject to the impacts resulting from the installation ...
Estratégias de controle para grupo motor-gerador a etanol operando com velocidade variável
(Universidade Federal de Santa Maria, 2019-02-28)
This master thesis presents two strategies for speed control and power generation
by a variable speed ethanol generator set (genset), where the power generated is reflected
in the current of the battery bank. Initially, ...
Estudo de viabilidade de concreto estrutural com areia de descarte de fundição e adições minerais: propriedades mecânicas e análise de ciclo de vida
(Universidade Federal de Santa Maria, 2019-03-20)
The large volume of waste generated by some productive sectors has led researchers to find suitable solutions for their reuse, in order to address technical, economic, social and environmental issues. The high consumption ...
Isolamento a ruído de impacto de laje pré-fabricada nervurada composta de vigotas protendidas e lajotas cerâmicas com revestimento cerâmico
(Universidade Federal de Santa Maria, 2019-03-15)
Impact noise is one of the main discomfort factors among users of multi-floor buildings and is directly related to the construction system and materials used in building construction. A problem that can be solved still in ...
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 ...
Análise das interações entre as principais commodities minerais brasileiras
(Universidade Federal de Santa Maria, 2016-08-26)
In the current market, the commodities trading directly influences the economy of a country. These goods are on the trade balance, which is made up by imports and exports of a country. This study aims to determine the ...
Extração de ácidos graxos produzidos por Mortierella isabellina utilizando fluido supercrítico e ultrassom
(Universidade Federal de Santa Maria, 2017-03-17)
Polyunsaturated fatty acids (PUFA) have received considerable attention in recent years due to the benefits associated with their consumption. Among these benefits, they emphasize their multiple physiological actions, ...