Cartesian Method
Mostrando 25-36 de 49 artigos, teses e dissertações.
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25. Coordenadas cartesianas moleculares a partir da geometria dos modos normais de vibração
A simple method to obtain molecular Cartesian coordinates as a function of vibrational normal modes is presented in this work. The method does not require the definition of special matrices, like the F and G of Wilson, neither of group theory. The Eckart's conditions together with the diagonalization of kinetic and potential energy are the only required expr
Química Nova. Publicado em: 2007-04
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26. Irregular polygon partitioning on the biaxial ellipsoid on the surface of the Lambert azimuthal equal-area projection / DIVISÃO DE POLÍGONOS IRREGULARES DO ELIPSÓIDE BIAXIAL NA SUPERFÍCIE DA PROJEÇÃO AZIMUTAL EQUIVALENTE DE LAMBERT
This dissertation supplies the methodology of the measure (area) in the Earth model adopted for Geodesy. This model is the ellipsoid of revolution, in which the system of Cartesian coordinates, the curvilinear coordinate system and the polar coordinate system are described. The coordinate nature in the development of the surface measure calculation is discus
Publicado em: 2007
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27. Desenvolvimento de um método nodal analítico para problemas de ordenadas discretas em geometrias cartesianas bimdimensional e tridimensional em domínios homogêneos e heterogêneos / Development of an analytical nodal method for discrete ordinates problems in multidimensional cartesian geometry in homogeneous and heterogeneous media
Neste trabalho estendemos o método LTSN2D-DiagExp para problemas de transporte de nêutrons bidimensionais heterogêneos e construímos um novo algoritmo para resolver as equações de ordenadas discretas SN tridimensionais em domínios homogêneos e heterogêneos, denominado LTSN3D-DiagExp. Esses algoritmos são construídos a partir da diagonalização da
Publicado em: 2007
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28. Inverse problem of approximated analytical reconstruction of the solution for the equation of monoenergetic neutral particle transport in cartesian unidimensional geometry with isotropic scattering / Problema inverso de reconstrução analítica aproximada da solução da equação de transporte de partículas neutras monoenergéticas em geometria unidimensional cartesiana com espalhamento isotrópico
Nesta tese mostraremos uma aplicação do método SGF, cf., spectral Greens function, para gerar fluxos angulares nas interfaces dos nodos na formulação de ordenadas discretas (SN) para equação de transporte de partículas neutras em geometria cartesiana unidimensional e a uma velocidade, usando quadraturas de alta ordem. Utilizando o método de malha gr
Publicado em: 2007
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29. Dynamic simulation of constrained mechanical systems using recursive projection algorithm
In this paper, the dynamic simulation of constrained mechanical systems that are interconnected of rigid bodies is studied using projection recursive algorithm. The method uses the concepts of linear and angular momentums to generate the rigid body equations of motion in terms of the Cartesian coordinates of a dynamically equivalent constrained system of par
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-03
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30. Método espectro-nodal linear para problemas de transporte de nêutrons na formulação de ordenadas discretas em geometria bidimensional cartesiana / Spectral greens function-linear nodal method for problems of neutrons transport in the discrete ordinates formulation in X, Y Cartesian geometry
Nesta tese o método espectro-nodal linear (SGF-LN) é desenvolvido para a solução numérica de problemas de penetração profunda na formulação de ordenadas discretas (SN) e regime estacionário com fonte de espalhamento isotrópica a uma velocidade em geometria cartesiana bidimensional. Este método é baseado em análise espectral das equações SN in
Publicado em: 2006
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31. Uniform resampling using the sinc function / Reamostragem uniforme utilizando a função SINC
Its common to be needed to reconstruct functions which samples falls on a nonequally spaced grid. This is due to the fact that some of the most used algorithms require samples in a regular (uniform) Cartesian grid. Therefore, it is necessary to make an uniform resampling, i.e., to interpolate the nonuniform samples in a set of equally spaced points. In this
Publicado em: 2006
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32. O sonho de Descartes: o homem das paixões
This dissertation is an audacious proposal to closely examine the personality of René Descartes which could perhaps, lead us to a theory about his mission in life which is intimately fused with his philosophy. The complexity of his psyche as revealed by his first biographer Baillet is expressed in the progression of his writings. We have chosen our course o
Publicado em: 2006
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33. Discussão epistemologica da produção de teses de programas de pos-graduação na area da saude reprodutiva
Considering the contemporary trends that dinamize critic to the new scientific knowledge (epistemology) and the insufficiencies in the process of production-teach-use of new knowledge in the medical area, which compose significant part of the reality in the academic formation, this research chooses as inquiry subject the critic investigations of epistemology
Publicado em: 2006
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34. The pragmatism as a method: looking for a third degree of clearness / O pragmatismo como método: em busca de um terceiro grau de clareza
In the present study weve pursued an analysis of the events that led to the formulation of the pragmatic maxim, in 1879, in How to make our ideas clear. We are going to defend the idea that the statement was elaborated as a logical principle that would characterize a third level of conceptual clarity to be summed to the two already known, clarity and distinc
Publicado em: 2005
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35. Racionalidade da ciência do direito: uma análise da obra de Chaim Perelman e Theodor Viehweg
This dissertation analyzes the work of Theodor Viehweg and Chaïm Perelman to verify how each deals with juridical knowledge and, specifically, the rationality of the science of law. The epistemological preliminaries of Perelmans theory of reasoning are delineated in Chapter I. Overcoming the insufficiency of formal logic and the notion of Cartesian reasonin
Publicado em: 2005
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36. Fragment d'un discours d'une méthode
What follows is the beginning of the introduction to a selection of my papers, translated into Portuguese, supposedly representative of the "method" I have put to work in my publications. I there recount in detail two early episodes of the "story of my mind" (if I may use a Cartesian phrase), which strongly influenced my later works, prompting me to do my be
Kriterion: Revista de Filosofia. Publicado em: 2003-06