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Estudos da técnica de beamforming combinando arranjos de microfones e material poroso
(Universidade Federal de Santa Maria, 2017-08-11)
In order to solve the problems caused by noise, it is essential that an adequate evaluation of the
main sources of noise is carried out. This can be done using an acoustic imaging technique and
one of them is the ...
Aplicação de diafragma plástico em substituição aos diafragmas fenólicos e titânio, utilizados em transdutores com reprodução de áudio em faixa de alta frequência
(Universidade Federal de Santa Maria, 2015-04-24)
This study aims to analyze the use of plastic diaphragm in the speaker industry replacing
the existing diaphragms (phenolic and titanium). For this analysis of comparative studies
of product, process and economic viability ...
Síntese e aplicação do compósito geopolímero/Fe3O4 como adsorvente magnético para a remoção de contaminante orgânico em efluente líquido
(Universidade Federal de Santa Maria, 2019-07-31)
Accompanying population growth, industries, in addition to supplying the needs of the population, have become one of the main sources of environmental contamination, with the textile sector being the main responsible for ...
Reciclagem de cabos coaxiais e lâmpadas de LED aplicando operações de processamento mecânico
(Universidade Federal de Santa Maria, 2019-08-02)
Technological development, although linked to quality of life improvement, results in the increase of waste electrical and electronical equipment, which cables and LED bulbs are part of. Thus, new approaches towards recycling ...
Síntese e caracterização do compósito SnFe2O4/polipirrol para utilização na degradação do corante tartrazina via processo foto-fenton
(Universidade Federal de Santa Maria, 2019-07-22)
One of the major concerns with the environment and aquatic life is related to the discharge of
effluents containing synthetic dyes. Among the most used synthetic dyes is tartrazine, a lemon
yellow azo dye, used in the ...
Modelagem para a mensuração de desempenho dos sistemas Bus Rapid Transit no Brasil
(Universidade Federal de Santa Maria, 2014-02-25)
It is notorious the role of urban displacements within the evolutionary social context, economic and cultural societies over the past centuries, being one of the most important activities and concern regarding the ...
Maximização do aproveitamento energético de painéis fotovoltaicos usando rastreadores mecânicos
(Universidade Federal de Santa Maria, 2015-03-13)
Photovoltaic market consolidation occurred in the last decade resulted in an increased contribution of this energy source in global electric power generation, especially in commercial and industrial distributed generation. ...
Remoção de carga orgânica de efluente hospitalar por reator de leito móvel com biofilme, em escala de bancada
(Universidade Federal de Santa Maria, 2014-05-02)
Moving bed biofilm reactors (MBBR) were developed in the end of last century in Norway, and have excelled over other processes, and incorporate great features of biological wastewater treatment. In the process, the ...
Análise e modelagem do atendimento de ordens de serviço emergenciais em concessionárias de energia elétrica
(Universidade Federal de Santa Maria, 2015-03-26)
Much effort has been made by electric power distribution utilities in order to attend the Brazilian regulating policies, especially those ones related to manage customer and technical requests. In this context, one issue ...
Impacto de diferentes coeficientes de assimetria em conversores multiníveis com uma fonte CC
(Universidade Federal de Santa Maria, 2017-03-03)
Multilevel converters operating with single dc source represent an interesting and
simple solution, since only an isolated voltage source is required, even in applications with
active power transfer. In this way, the ...