Primitive Element
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Survey and study of graphite occurrences in the Aracoiába-Baturité graphite bearing District, CE / Levantamento e estudo das ocorrências de grafita do Distrito Grafitífero Aracoiába-Baturité, CE
The Aracoiába-Baturité Graphite-bearing District has graphitic gneiss deposits (disseminated ore) and vein (solid ore) with different genetic origins and their own physical characteristics and geological environments. The graphite gneiss ore is of sedimentary, syngenetic origin, with 1.5% to 8% C content, which is distributed along two long parallel belts,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2011
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2. CALFRAC: Programa que quantifica o processo de cristalização fracionada e sua aplicação ao estudo de soleiras da Bacia do Paraná (Estado do Paraná) / CALFRAC: Program to quantify fractional crystallization processes and your application in the study Paraná Basin sills (Paraná).
CALFRAC is a computer program written in C++ programming language developed to quantify fractional crystallization processes in igneous systems. Major, minor and trace element concentrations are used as input for calculations. The new algorithm enhances and makes the program more efficient than those published in the literature. Besides it is capable to auto
Publicado em: 2010
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3. Active magnetic bearing applied to a tubular linear induction motor. / Mancal magnético ativo aplicado a um motor de indução linear tubular.
A tubular linear induction motor applied to onshore oil exploitation, named MATÆOS (which is in the Portuguese acronym for Tubular Asynchronous Motor for Onshore Oil Exploitation) was built at Escola Politécnica da Universidade de São Paulo (EPUSP). Its purpose is to directly drive the sucker-rod pump installed in the down hole of the oil well. In continu
Publicado em: 2009
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4. Sobre bases normais para extensões galoisianas de corpos / On normal bases for galoisian extensions of fields
Neste trabalho apresentamos várias demonstrações do Teorema da Base Normal para certos tipos de extensões galoisianas de corpos, algumas existenciais e outras construtivas, destacando as diferenças e dificuldades de cada situação. Apresentamos também generalizações de tal teorema e mostramos que toda extensão galoisiana de grau ímpar de corpos ad
Publicado em: 2008
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5. Constitucionalismo e direitos fundamentais : bases para uma interpretação do controle judicial de proporcionalidade do ato administrativo no exercício de competência discricionária
From the very point the Constitucionalism and the Theory of Fundamental Rights suffer alterations, we must give answers for the new problems which are being put in contemporaneous society, plural and complex, that is collecting a new concept for questions that developed themselves under the sign of liberal paradgigms of public interest, selfgovernment and ab
Publicado em: 2008
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6. Reavaliação do contexto tectonico dos basaltos do greenstone belt do Rio Itapicuru (Bahia), com base na geoquimica de elementos-traço / Tectonic setting of basalts from the Rio Itapicuru greenstone belt revisited (Bahia, Bazil) by trace-element geochemistry
The Paleoproterozoic Rio Itapicuru Greenstone Belt, situated in the Serrinha Block - northeast São Francisco Craton, has a sequence of basaltic rocks whose tectonic setting is under discussion, i.e whether a back arc setting or intracontinental rift. The basalt geochemistry was revisited on the basis of incompatible trace elements data, such as high field s
Publicado em: 2007
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7. The boundary element method applied to incompressible viscous fluid flow
An Integral equation formulation for steady flow of a viscous fluid is presented based on the boundary element method. The continuity, Navier-Stokes and energy equations are used for calculation of the flow field. The governing differential equations, in terms of primitive variables, are derived using velocity-pressure-temperature. The calculation of fundame
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-12
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8. Sobre a existencia de elemento primitivo para extensões separaveis de aneis comutativos
One of the classic theorems of the Galois theory of fields is the Primitive Element Theorem. In Galois theory of commutative rings, such a theorem does not hold, in general. In this work we give necessary and sufficient conditions for the existence of a primitive element in an strongly separable extension of a connected commutative ring. Furthermore we p
Publicado em: 2004
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9. Litogeoquimica e controles geocronologicos da suite metamorfica algodões-choro
This thesis proposes an interpretation of the tectonic evolution of the Algodoes-Choro Metamorphic Suite (ACMS) - a paragneiss-amphibolite association intruded by granite-tonalite orthogneisses that crops out in the central region of the Ceara State, NE Brazil. The geological data support the division of this suite in the following units: 1) Algodões amphib
Publicado em: 2000
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10. Simulação numerica de escoamentos de fluidos pelo metodo de elementos finitos baseados em volumes de controle
In this investigation a control volume-finite element method (CVFEM) using a ninenoded finite element with quadratic interpolation functions has been developed for numerical simulation of incompressible, viscous, transient fluid flows. The Navier-Stokes equations in primitive varibles U,V,pare used as the mathematical model. The mass weighted interpolation (
Publicado em: 1998
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11. Mecanismos de alojamento de magmas granitóides :exemplo do plúton de Japi(RN)
This dissertation describes the igneous suites of the Japi granitoid pluton, intrusive in the Paleoproterozoic gneiss-migmatite complex of the eastern domain of the Seridó Belt, northeastern Brazil. Field relations show that the pluton is affected by strong deformation associated to the Brasiliano orogeny (known as the D3 phase) , with a NW-trending extensi
Publicado em: 1998
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12. Em busca da harmonia perdida : mito e discurso politico (uma analise a partir da campanha eleitoral brasileira de 1994)
The eh ]Jression"political myht" is used, in general, in a careless way, as a not cIearly defined element ofrhetoric. The objective ofthis dissertation is to sustainthe relevance of the concept of"political myth",once established as an accurate and operational tool in the analysis of the political discourse. The starting point is the analysis of three differ
Publicado em: 1997