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Análise de modos e efeitos de falha aplicado a transformadores de potência
(Universidade Federal de Santa Maria, 2017-07-21)
This work presents a methodology that aims to provide technical-scientific support to expedite
the decision-making regarding the actions of predictive maintenance reinforcements, renewal
of power transformers, and ...
Repotencialização de sistemas de distribuição rurais monofásicos por meio de dois cabos aéreos e o solo como a terceira fase
(Universidade Federal de Santa Maria, 2017-02-24)
In Brazil and in several countries of the world, rural electrification projects were developed using the single-phase system. Due to the type of loads of rural consumers and their dispersed location. With the growth of ...
Desenvolvimento de uma estação de carregamento rápido com elemento armazenador de energia para veículos elétricos
(Universidade Federal de Santa Maria, 2017-08-04)
Concerns about climate change have increased the search for more efficient means
of transportation with reduced greenhouse gases emissions. A likely solution deal with
emissions is through hybrid and purely electric ...
Contribuições ao controle aplicado a uma topologia híbrida para regulação de tensão em geradores de indução autoexcitados
(Universidade Federal de Santa Maria, 2017-04-24)
This doctoral thesis presents contributions to control applied to hybrid topology
for voltage regulation of self-excited induction generators in stand-alone microgeneration
systems. The generator system considers a ...
Contribuição ao estudo do conversor multinível híbrido em cascata monofásico empregado na interface entre fonte fotovoltaica, banco de baterias e rede elétrica.
(Universidade Federal de Santa Maria, 2017-08-30)
This master thesis presents an energy management strategy in order to eliminate power fluctuations
from a photovoltaic source through a single-phase cascade hybrid multilevel grid-tie
converter associated with a battery ...
Empreendedorismo feminino no Brasil e sua relação com variáveis econômicas e sociais
(Universidade Federal de Santa Maria, 2017-03-13)
The growth of female entrepreneurship is closely linked to the variables that describe women's entrepreneurial reasons, through economics, income, domestic influences such as motherhood, and often by managing their families ...
Mapeamento de áreas de suscetibilidade e risco de inundação de trecho do rio Uruguai no município de São Carlos - SC
(Universidade Federal de Santa Maria, 2017-02-02)
Based on the problems of riverside flooding, especially when the rivers are located in urban areas, the present study had the objective of analyzing flood data from the Uruguay River downstream of the UHE Foz do Chapecó, ...
Avaliação de cargas poluidoras e contaminantes emergentes na bacia hidrográfica Vacacaí - Vacacaí Mirim
(Universidade Federal de Santa Maria, 2017-01-19)
The point and nonpoint source pollution released in rivers are the main responsible for the deterioration of the surface water quality. This study aimed to evaluate the water quality of the Vacacai – Vacacai Mirim watershed, ...
Determinação de hidrocarbonetos policíclicos aromáticos (HPAs) em mexilhão empregando o método QuEChERS e HPLC-FD
(Universidade Federal de Santa Maria, 2017-07-20)
The consumption of fish and seafood is considered an important element of a balanced diet. The mussel is a bivalve mollusk which is fed by filtration of organic particles present in suspension in water. In recent years, ...
Avaliação das mudanças de cobertura vegetal de áreas ribeirinhas na bacia do rio Vacacaí Mirim
(Universidade Federal de Santa Maria, 2017-01-05)
The constant analysis of the condition of ciliary vegetation is fundamental in the management and conservation of natural resources as well as in the maintenance of local biodiversity. The main objective of this study is ...