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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 ...
Produção catalítica de biodiesel de soja sem glicerol
(Universidade Federal de Santa Maria, 2016-09-06)
This work has as goal to evaluate the use of heterogeneous catalysts on interesterification reaction for glycerol-free biodiesel production. Interesterification is a reaction between the triglyceride ester from vegetable ...
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 ...
Comportamento mecânico de concretos asfálticos com diferentes granulometrias, ligantes e métodos de dosagem
(Universidade Federal de Santa Maria, 2016-06-01)
The degradation of the pavement has grown considerably due to the modification
of traffic characteristics. It was increased the volume of traffic, the transported load and
the tire inflation pressure, which added to the ...
Comportamento mecânico de material reciclado a frio com emulsão e cimento
(Universidade Federal de Santa Maria, 2016-08-22)
The recycled asphalt pavement (RAP) extracted from recovery distresses in highways does not receive the attention and importance it deserves in Brazil. The reuse of this material, which presents as good properties as the ...
Qualidade de vida no trabalho e Síndrome de Burnout em profissionais públicos e privados de Santa Cruz do Sul/RS
(Universidade Federal de Santa Maria, 2014-04-23)
Considering that work represents the main goal in people lives, the Quality of Work Life (QWL) and occupational health become relevant when work market is instable and insecure (COHEN, 2003). Regarding this, the biopsychosocial ...
Análise comparativa entre o conversor BUCK e o conversor ressonante LLC em drivers de leds visando aspectos industriais
(Universidade Federal de Santa Maria, 2019-08-30)
This paper presents a quantitative design analysis, performance prediction and practical testing of buck and half-bridge LLC resonant converters as a solution for a power control stage in the realization of a 180 W driver ...
Tempo de concentração e parâmetros da metodologia da curva número: uma avaliação para bacias brasileiras
(Universidade Federal de Santa Maria, 2019-08-05)
Among the available models for design flows estimation, the Curve-Number (CN)
method in conjunction with the Triangular Unit Hydrograph Method (HUT) is
highlighted. These are widely used methods, but there are also ...
Síntese e caracterização de biopolímeros funcionalizados com APTES (3–aminopropiltrietoxisilano) para a adsorção de corante amarelo crepúsculo
(Universidade Federal de Santa Maria, 2019-08-05)
The biopolymers chitin (CTN) and chitosan (CTS) were functionalized with APTES (3–aminopropyltriethoxysilane) in order to enhance its adsorption potential for sunset yellow dye (SYD). The functionalization was evaluated ...
Avaliação do ciclo de vida das etapas de construção e operação de sistemas de manejo de dejetos suínos
(Universidade Federal de Santa Maria, 2018-02-28)
The intensified swine production in Brazil brings the need to evaluate, develop and apply alternative management technologies that minimize negative impacts to the environment. Thus, the main objective of this study was ...