Operational Search
Mostrando 25-36 de 125 artigos, teses e dissertações.
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25. Tecnologia lítica: estudo da variabilidade em sítios líticos do nordeste do estado de São Paulo / Lithic Technology: a study of assemblage variability on lithic archaeological sites in Northeastern São Paulo State
The main objective of this research is the study of the production technology of chipped stone artifacts and their operational sequence on lithic archaeological sites located in Northeastern São Paulo State. A bibliographic research was made based, firstly, on the amateur and specialized archaeological literature related to this specific subject, paying att
Publicado em: 2010
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26. Análise do serviço de atendimento móvel de urgência (SAMU) de Belo Horizonte via simulação e otimização
Several studies published in the medical literature and in the area of operational research shows that there is a direct relation between response time of rescue units and the probability of survival for victims involved in accidents. This study presents the development of a simulation model representing the operations of the Emergency Medical System of Belo
Publicado em: 2010
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27. Dimensionamento ótimo de sistemas híbridos, com geração fotovoltaica e célula a combustível, para atendimento a comunidades isoladas na Amazônia / Optimal design of a hybrid photovoltaic and fuel cell power generation system, to supply isolated communities in the Brazilian Amazon.
The lack of electricity in isolated communities in the Brazilian Amazon has become one of the greatest barriers for the development of the region. Currently, the main technologies that provide electricity to these communities are diesel generators, batteries and dry cells. These non-renewable energy sources may pose serious problems to the environment and hu
Publicado em: 2010
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28. Gerenciamento de resíduos sólidos nas pequenas e médias empresas de Itabirito/MG
The solid waste management is a set of operational, financial and planning normative actions which have as objective to define segregation, gathering, package, storage, transport, minimization, reuse, recycling, treatment and final disposal of the materials discarded by industries. However, in most cases, industries consider the management of these materials
Publicado em: 2010
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29. Redescription of a Dasypodini (Xenarthra, Cingulata) from the Quaternary of São Paulo, Brazil, and remarks on the genus Propraopus Ameghino, 1881. / Redescrição de um Dasypodini (Xenarthra, Cingulata) do quaternário do Estado de São Paulo e considerações sobre o gênero Propraopus Ameghino, 1881
This work presents the comparative description of the skull, postcranium and osteoderms of the Dasypodini (Xenarthra, Cingulata) MNRJ 552-V, collected in the quaternary deposits of Gruta de Itaporanga, Sorocaba-SP, Brazil. The skull was CT scanned and compared to those of extant taxa of all three Dasypodidae subfamilies, while the postcranium was compared to
Publicado em: 2010
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30. Desenvolvimento de um sistema computacional para geração automática de mapas de vulnerabilidade como ferramenta de auxílio às ações de prevenção ao derramamento de óleo em áreas costeiras
The northern portion of the Rio Grande do Norte State is characterized by intense coastal dynamics affecting areas with ecosystems of moderate to high environmental sensitivity. In this region are installed the main socioeconomic activities of RN State: salt industry, shrimp farm, fruit industry and oil industry. The oil industry suffers the effects of coast
Publicado em: 2010
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31. Diretrizes para implantação da governança de TI no setor público brasileiro á luz da teoria institucional
The IT area has become crucial to business for support, sustainability and growth, but the pervasive use of information technology created a critical dependency of organizations on IT, requiring a focus on IT Governance. Despite the recommendations of internal and external control agencies of the Brazilian Federal Public Administration, few initiatives are s
Publicado em: 2010
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32. Uma investigação do nível de sustentabilidade das companhias de papel e celulose e a influência das informações financeiras sobre a qualidade da divulgação socioambiental / An investigation of the level of sustainability in companies on cellulose and paper segment and the influence of financial information on quality of environmental and social disclosure
The concept of sustainability has been discussed worldwide and increasingly influenced by the decisions of the market in different countries. Nations, governments, corporations, managers and citizens have had their positions and questions under the expanded views of economic, social and environmental. The spread of a "green" generation has affected not only
Publicado em: 2010
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33. Controle supervisÃrio da cadeia produtiva do biodiesel da mamona baseado em redes de Petri / Supervisory control of castor bean biodiesel suppy chain based on Petri nets
Nowadays many countries present critical problems related to energy demand-supply equilibrium. The reserves of petroleum-based products are unable to face future demand for the next decades. So, the search for alternative sources of energy has been strongly directed to biodiesel. Several fruit oils can be used as a source for biodiesel production and the cas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/09/2009
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34. Modelos de simulação para análise e apoio à decisão nos processos de corte mecanizado, carregamento e transporte no agronegócio da cana-de-açúcar / Simulation models for analysis and decision support in the processes of cutting, loading and transport in the agribusiness of cane sugar
In the current days sugarcane occupies an area of approximately 10,5 % of all the Brazilian agricultural land, with an estimated production for the 2008/2009 crop of 528 million t. In the sugarcane production process, the harvest highlights due its high costs, representing approximately 35% of the sugarcane production costs, besides the addition of operation
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2009
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35. Jet Grouting (sistema monofluido): um método teórico simplificado para a previsão do diâmetro das colunas. / Jet Grouting (single fluid system): a theoretical simplificated method for the prediction of column diameter.
Jet grouting is one of the most popular ground improvement techniques all over the world. The method is based on high-speed grouting of water-cement mixtures and/or other fluids (air, water) into the subsoil. The fluids are injected through small diameter nozzles placed on a grout pipe, which is continuously rotated at a constant rate and slowly raised towar
Publicado em: 2009
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36. Metodologia para planejamento da colheita e transporte florestal utilizando geotecnologia e pesquisa operacional / Methodology for planning forest harvesting and transport using geotechnology and operations research.
Considering the current scenario in which the use of forest resources is growing quickly, it is necessary the use of techniques and tools to facilitate the short, medium and long run planning, thus facilitating the search for a more rational use of these precious resources, assisting and supporting the decision making. This study aimed to use the geographic
Publicado em: 2009