Compression Between Phases
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Estudo comparativo de configurações geométricas em linhas de transmissão de 500kV
Este trabalho apresenta um estudo comparativo de diversas configurações geométricas para o arranjo de condutores de uma linha de transmissão de 500kV. São analisados, dentro do conceito de Linha de Potência Natural Elevada – LPNE, as técnicas de compactação entre fases e expansão do feixe de subcondutores, quanto aos aspectos de acoplamentos elé
Publicado em: 2010
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2. Immediate skin-to-skin contact at birth in the reactivity of newborns pain during the Hepatitis B vaccine / Efeito do contato pele a pele imediato ao nascimento na reatividade à dor dos recém-nascidos durante a vacina contra Hepatite B
Immediate skin-to-skin contact between mother and newborn is an essential procedure in birth care when ones work is focused on the humanization of care. Current studies address the effects of this therapeutic on the relief of acute pain in newborns, though further research on its effects at birth is needed. This study aimed to test the late effect of skin-to
Publicado em: 2009
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3. Avaliação do comportamento fisico-quimico-mecanico de misturas cimento-cinza-casca de arroz por meio de corpos-de-prova cilindricos e placas prensadas
The recycling is an effective tool to minimize environmental impact that is caused by human civilization. The utilization agricultural residual for rural construction is an efficient way for retain or reduce carbon emission to the atmosphere. However, the present-day techno logy is not enough to be a satisfactory level. A part of the residue is not consumed,
Publicado em: 2007
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4. Estrutura e propriedades elásticas das fases alpha e gama do ZrW2O8
The crystalline structure and some elastic properties of the alpha and gamma phases of zirconium tungstate, ZrW2O8, were calculated according to Density Functional Theory using the B3LYP functional (DFT/B3LYP). The structure of alpha ZrW2O8, was optimized at different pressures and its elastic constants were estimates. The interatomic iterations, ranked in t
Publicado em: 2007
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5. AnÃlise do processo de desenvolvimento de recursos competitivos em empresas exportadoras de uva do Vale do SÃo Francisco
The present research has as objective analyzes the development process of competitive resources of companies that are considered more competitive, among the exporters of grape of the area of SubmÃdio of the San Francisco. For the construction of the theoretical referential, it was taken as base the perspective of Resource-Based View of the Firm (RBV), that
Publicado em: 2007
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6. Influence of the grinding dust addition in a matrix of magnesium phosphate cement. / Influência da adição de pó de retífica em uma matriz de cimento de fosfato de magnésio.
In the present work, the magnesium phosphate cement use feasibility in the organic and inorganic hazardous industrial wastes encapsulation and the grinding dust of clutch discs influence (hazardous waste - classroom I) in the final properties of composites and mortars formed by this kind of cement was evaluated. The magnesium phosphate cements are material f
Publicado em: 2006
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7. Avaliação de sistemas de reparo para o problema de abrasão do concreto de superfícies úmidas em UHEs
The research field of construction pathology has been steadily growing lately due to natural degradation observed in different structures. In this sense, great attention has been devoted to special concrete structures such as hydroelectric power plants (HPP) because of their complexity and importance, socially as well as economically. One of the pathologies
Publicado em: 2006
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8. Potencial da cinza do bagaço da cana-de-açúcar como material de substituição parcial de cimento Portland / Potential of the sugarcane bagasse ash as a partial replacement material for cement Portland
This study was carried out to evaluate the potential of the sugarcane bagasse ash (CBC) as partial replacement material for the Portland cement in mortar. A residue generated at the Jatiboca sugar mill located in Urucânia county-MG was used as CBC. The use of the sugarcane bagasse as an ash source for mineral addition into cement-based materials is subjecte
Publicado em: 2006
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9. Development of functional cheese bread by soy protein isolate and polydextrose incorporation. / Desenvolvimento de pão de queijo funcional pela incorporação de isolado proteico de soja e polidextrose.
"Pao de queijo" (cheese bread), a typically Brazilian product, is considered a gluten-free bakery product, as its formulation does not contain wheat flour but native cassava starch, naturally fermented and/or modified. Due to its high content of carbohydrates, it has great acceptance and can be consumed by individuals who suffer from celiac disease. The high
Publicado em: 2006
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10. Contribuição ao estudo da instabilidade lateral de vigas pré-moldadas / On the lateral stability of precast concrete beams
The lateral stability of long and slender precast concrete beams requires great attention. In particular, it is important to ensure the stability of these members during transitory phases like tilting and transport, and also when the deformability of temporary supports is taken into account. The state of the art of the problem of lateral stability in precast
Publicado em: 2002
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11. Caracterização da geometria de zonas de alteração hidrotermal - Estudo de caso no deposito aurifero de Brumal, Quadrilatero Ferrifero, Minas Gerais
The Brumal gold deposit is located in the northeastern portion of the Quadrilatero Ferrifero region. It is encIosed within an Archaean voIcano-sedimentary sequence (i.e., Nova Lima Group). Regional host rocks comprise two distinct greenstone assemblages, from bottom to top: (i) mafic to ultramafic volcanics and (i i) cIastic and chemical sediments. At least
Publicado em: 1999
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12. Theory of hexagonal and stripe phases in monolayers
Epifluorescence microscopy can be used to visualize the shapes of solid lipid domains in two-phase regions of monolayers at the air—water interface. The shapes of certain lipid domains result from a competition between a one-dimensional line tension and long-range intermolecular electrostatic repulsion. Under specified conditions, a finite two-dimensional