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O e-business como indicativo para o desenvolvimento ao empreendedorismo
(Universidade Federal de Santa Maria, 2011-05-26)
The aim of this study is to e-business as an opportunity for the development of entrepreneurship. We tried to also identify the entrepreneurial characteristics that lead to success of this model, and analyze and propose ...
Projeto e implementação de um conversor módulo integrado para conexão de geração fotovoltaica à rede elétrica
(Universidade Federal de Santa Maria, 2018-02-27)
This Master Thesis presents the analysis, design and implementation of a grid-connected
module integrated converter, or, simply, microinverter, for photovoltaic applications. The
system is composed of two stages: a ...
Preparação de ferro metálico suportado em polietileno para uso como catalisador flutuante na reação foto-fenton
(Universidade Federal de Santa Maria, 2019-03-25)
In the present paper, zero-valent iron particles were supported on low density polyethylene. The material produced was used as a buoyant catalyst in the removal of the Ponceau 4R azo dye from an aqueous solution via ...
Metadados para preservação e segurança do diário de classe eletrônico da UFSM
(Universidade Federal de Santa Maria, 2011-09-30)
The public education institutions are trying to follow the technological advances and aim to
search for the evolution in education that increasingly appears every day in its organizational
environment. This research aimed ...
Ação dinâmica de vento EPS em torres metálicas treliçadas considerando a interação solo-estrutura
(Universidade Federal de Santa Maria, 2017-03-14)
The present work carried out a comparative study between static and dynamic analyses in a self-supporting steel lattice tower under action of extended pressure system (EPS) winds while considering soil-structure interaction ...
Produção de biodiesel utilizando a lipase Thermomyces lanuginosus como catalisador
(Universidade Federal de Santa Maria, 2017-03-03)
With the inevitable decline in fossil fuel reserves, recent research has consolidated
biodiesel as a promising source of energy, especially in the replacement of petroleum
diesel. Several technologies have proven appropriate ...
Síntese, caracterização e avaliação catalítica, em reação foto-Fenton, de compósitos Fe2O3/grafite
(Universidade Federal de Santa Maria, 2018-07-31)
The presence of dyes in wastewater, most of them recalcitrant, contaminate the aquatic
environment, as they prevent the penetration of light, damaging the local fauna and flora. In
addition, they may ...
Ligações semirrígidas na análise dinâmica de estruturas metálicas treliçadas
(Universidade Federal de Santa Maria, 2018-08-30)
In Brazil, lattice metalic towers are dimensioned to support their own weight, weight of cables or equipments that they have and mainly Wind load. But, even low-intensity dynamic actions can bring such a structure to ...
Uma metodologia de otimização para sistemas de iluminação que empregam LEDs
(Universidade Federal de Santa Maria, 2015-03-09)
This work presents an optimization methodology for lighting systems that employ LED.
Initially, this work brings a calculation methodology capable of obtaining a thermal resistance
of heat sink from their dimensions of ...
Controle escalar sensorless para sistemas de conversão de energia eólica com gerador síncrono de ímãs permanentes
(Universidade Federal de Santa Maria, 2015-08-21)
This master thesis proposes a control method of scalar direct torque control and
a technique of current control to maximize the aerodynamic efficiency of wind energy
conversion systems (WECS) using permanent magnets ...