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Modelo beta autorregressivo de médias móveis: critérios de seleção e aplicações
(Universidade Federal de Santa Maria, 2015-02-27)
Time series modeling and forecasting has many applicability in scientific and technological
researchs. Specifically about variables restricted to the interval (0; 1), which includes
rates and proportions, the classical ...
Avaliação da aplicação de CO2 supercrítico na presença de cosolventes para a reciclagem de placas de circuito impresso de celulares
(Universidade Federal de Santa Maria, 2015-03-06)
Technological development and intensive marketing support the growth of demand for electrical and electronic equipment (EEE), which have as a primary component printed circuit boards (PCBs). These devices have become ...
Comparação de técnicas para concentração de índio de telas de LCD e aplicação de eletro-obtenção
(Universidade Federal de Santa Maria, 2015-12-18)
Because of the constant introduction of new technologies to market growth of electronic waste generation has gained importance on the world stage, among these residues are cell phones. Deliver useful life increasingly ...
Utilização de CO2 supercrítico e ácidos orgânicos na lixiviação de índio presente em telas de lcd de telefones celulares
(Universidade Federal de Santa Maria, 2015-07-15)
The growth in the generation of electrical and electronic equipment waste (WEEE) has won global importance and cell phones are highlighted between these wastes because of short life cycle and its amounts of hazardous ...
Implantação da logística reversa de lâmpadas fluorescentes no município de Não-Me-Toque/RS: estudo de caso
(Universidade Federal de Santa Maria, 2015-01-27)
This dissertation presents the analysis of reverse logistics fluorescent lamps in the city of Não-Me-Toque, located in the northwest of Rio Grande do Sul. With increased production and consumption of fluorescent lamps since ...
Produção de olefinas leves a partir de etanol em ZSM-5 sintetizada sem direcionador nitrogenado
(Universidade Federal de Santa Maria, 2015-03-05)
The petrochemical industry is currently strongly based on the production of light olefins ethylene and propylene, which are mainly produced by hydrocarbons from oil. Due to the environmental appeal and unstable oil market ...
Desenvolvimento de modelos de previsão de desempenho a partir da implantação de trechos monitorados na região de Santa Maria - RS
(Universidade Federal de Santa Maria, 2015-07-16)
In a country with continental dimensions like Brazil, road infrastructure that provides a displacement with comfort and safety is extremely important, once it is from these roads that the majority of supplies and people ...
Avaliação do ciclo de vida e do custo de uma edificação de concreto estrutural com diferentes traços: estudo do berço ao portão
(Universidade Federal de Santa Maria, 2015-06-25)
Consumption and employability of concrete are widely recognized in the construction sector which is related to many environmental impacts. In this context, technical solutions that associate environmental sustainability ...
Utilização de simulações computacionais como ferramenta de desenvolvimento de produto em indústria de alto-falantes
(Universidade Federal de Santa Maria, 2015-04-24)
The present study is focused on product development and aims to verify the benefits
of the use of computer simulation as a design tool in the industry speakers. For this reason
every stage of a product development company ...
Avaliação subjetiva do desempenho de soluções de isolamento sonoro ao ruído de impacto
(Universidade Federal de Santa Maria, 2015-07-15)
The aim of this study was to evaluate the subjective acoustic performance of soundproofing
solutions for impact noise commonly used in Brazil. Therefore it was developed
a subjective evaluation protocol that has gone ...