Energetic Efficiency
Mostrando 25-36 de 90 artigos, teses e dissertações.
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25. Estratégias de suplementação energética para bovinos em recria em pastagens tropicais durante as águas e seus efeitos na terminação em confinamento / Energetic supplementation strategies for growing cattle grazing tropical forages during the raining season and their effects on the feedlot finishing phase.
The objective of this study was to evaluate the effect of strategies of feeding an energetic supplement to growing cattle, grazing well managed tropical pastures during the rainy season, on the grazing animal performance, pasture stocking rate, total body weight gain per area, and on feedlot finishing phase. The treatments tested were: T1) Control: animals f
Publicado em: 2010
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26. Quantificação das antocianinas majoritárias do açaí por cromatografia líquida de alta eficiência. / Quantification of the major anthocyanins of açaí by high performance liquid chromatography.
Açaí (Euterpe oleraceae Mart) is a fruit with a high energetic and nutritional value that presents high content of phenolic compounds, mainly anthocyanin pigments directly related to its color. Over the past few years the interest on these pigments has been intensified as many scientific studies demonstrate that the anthocyanins and their aglycones are bio
Publicado em: 2010
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27. Painéis-sanduíche com núcleo de EPS reciclado: metodologia de execução e determinação de propriedades termofísicas
Novos materiais desenvolvidos a partir de resíduos industriais vêm sendo estudados como alternativa aos modelos tradicionalmente empregados na construção civil. Para desenvolvimento desses materiais são considerados fatores como: custo, eficiência e redução de passivo ambiental. No caso específico de materiais para aplicação em habitações situad
Publicado em: 2010
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28. Avaliação do potencial da casca de Eucalyptus spp. para a produção de bioetanol / Evaluation of the potential use of Eucalyptus spp. bark for bioethanol production
The use of no fossil source for biofuels production has been stimuled in the all world. Proposing a new global scenario related to the energy matrix, together with the environmental conditions, there is the need to search alternative renewable raw materials. In this context, Brazil presents special conditions, considering the lignocellulosic residues from th
Publicado em: 2010
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29. Efeito do peso adulto e produção de leite de vacas de corte sobre a eficiência energética-ambiental-econômica do sistema de cria / Effect of mature weight and milk production on energetic, environmental and economic efficiency of the beef cow-calf system
O objetivo deste estudo foi avaliar o efeito da produção do leite, das exigências líquidas de lactação e do peso de vacas de corte sobre a eficiência energética, econômica e ambiental do sistema de cria. Diversos genótipos utilizados no sistema de cria nacional foram avaliados em três experimentos tendo seus dados analisados por meta-análise. Os
Publicado em: 2010
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30. An analysis of energetic balance of a biogasproducing System in a swine farm: implementation of a computational device / Análise de balanço energético de sistema de produção de biogás em granja de suínos: implementação de aplicativo computacional
The development of swine breeding made evident the need for greater attention to the issue of treatment and destination of swine wastes. Among the alternatives for environmental sanitation, the most advantageous one shows to be the biodigesters, since they add value to the process by means of the by-products generated: biogas, mainly made out of methane and
Publicado em: 2009
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31. Integração das principais tecnologias de obtenção de etanol através do processamento de celulose (2ª geração) nas atuais usinas de processamento de cana-de-açúcar (1ª geração). / Integration of ethanol production technologies throw the cellulose processing (2nd generation) on existing sugar cane processing units (1st generation).
The demand for energy has been increasing due to world development. Renewable energy of biomass, biofuel and electric energy have an important role to assist this growth, due to sustainable development policies and to the pressure of global organizations. The main aim of this dissertation is to demonstrate that the integration of second-generation technologi
Publicado em: 2009
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32. ANÁLISE ECONÔMICA E BALANÇO ENERGÉTICO DO BIOGÁS EM GRANJAS DE SUÍNOS / ECONOMIC ANALYSIS AND ENERGY BALANCE OF PLANTS IN FARMS DE PIGS
This work presents a case analysis of energetic harnessing in a piggery, based on the use of biogas generated from pig sewage. The analysis shows that the energy from the biogas produced in the farm processes can be partially used through Clean Development Mechanisms (CDM) in order to improve the system efficiency. The utilized process presents environmental
Publicado em: 2009
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33. Dynamic and flexible load distribution for web service clusters / Distribuição de carga flexível e dinâmica para provedores de web services
SOA is becoming a widespread approach to develop systems. High demand problems may appear in huge systems where SOA and web services are used. This problems can be solved by means of distributed architectures like clusters. This work presents the proposal of a new architecture for request distribution in web service clusters. The proposed architecture provid
Publicado em: 2009
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34. Produção de biodiesel via transesterificação do óleo de nabo forrageiro
The obtainment of solid, liquid and gaseous fuels from biomass is among the well-known possibilities of the use of the energetic resources. Brazil is considered a privileged country to develop from biomass point of view, due to its vast farmland, abundance of water and high incidence of solar radiation on the land, and the availability of rural workforce. Pr
Publicado em: 2009
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35. Avaliação da reparação e indicadores de desnutrição de ratos submetidos à fratura de côndilo mandibular e com desnutrição protéica / Evaluation of healing and undernutrition indicatives of rats submitted to mandibular condyle fracture and with protein undernutrition
This study evaluated the healing and undernutrition indicatives of rats submitted to mandibular condyle fracture and with protein undernutrition (8% of protein with vitamin and minerals supplement). Forty-five adult male Wistar Rattus norvegicus were used and distributed in 3 groups of 15 animals: fracture group, submitted to condylar fracture with no change
Publicado em: 2009
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36. Elasticidades de curto e longo prazos da demanda por Ãlcool hidratado no Brasil
Since March 2003, with the launch of flex fuel cars, consumption of hydrated alcohol again grows strongly in Brazil. The option of the consumer choice, holder of this technology, which allows the use of hydrated alcohol, gasoline or any mixture of proportion between the two in a single tank of fuel, leads to take as main variable the price of fuels (hydrated
Publicado em: 2009