Two Body Problem
Mostrando 25-36 de 94 artigos, teses e dissertações.
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25. Acesso e permanência na universidade federal do rio grande do Norte sob o ponto de vista do docente e do estudante com deficiência Natal-RN
Inclusion of students with disabilities is a recent case that has been discussed in school contexts, but the current policy of inclusion for access and retention of students in higher education is still a problem face there is much to do, therefore, are incipient studies in which this student body is involved. Accordingly, what is happening is that the most
Publicado em: 2010
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26. Infecções de sítio cirúrgico após cirurgias cardíacas em um hospital universitário mineiro: incidência, aspectos microbiológicos e epidemiológicos
Surgical site infections (SSI) after cardiac surgery is a significant problem for patients operated in terms of morbidity, mortality and costs. The objective of this study was to investigate epidemiological aspects of these infections in the main types of heart surgeries, including incidence, etiology, pathogenesis and risk factors of nosocomial infection, d
Publicado em: 2010
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27. Estado nutricional de mulheres, mães de crianças menores de cinco anos - Jordão - Acre - Brasil / Nutritional state of women, mother of children under 5 years old - Jordão - Acre - Brazilian Amazon
Introduction - the nutritional state has important repercussions during the changes for which it passes the body of the woman in the process of being mother, since the conception, gestation, childbirth and puerperium, continuing this period after. However, the nutritional state of the women is very prioritized before, during and up to one year after the gest
Publicado em: 2010
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28. Gravitational systems with variable mass : galaxy merger / Sistemas gravitacionais com massa variavel : merger de galaxias
We study the process of galactic merger, where galaxies are regarded as compact objects with time-dependent masses. This study is made through the analysis of the system s orbit. For this purpose, we consider the gravitational problem of two bodies exchanging mass with a surrounding atmosphere. The Gylden-Mestschersky problem is reviewed in order to be used
Publicado em: 2009
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29. Boundary Element Method for Electrical Impedance Tomography / Método dos elementos de contorno para tomografia de impedância elétrica
The Electrical Impedance Tomography (EIT) is a quite new technique and has proved to be promising in obtaining inner body images exploring the differences between electric qualities (conductivity and permissity) of different materials that constitute it. The technique is based on applying an electric potential profile or electric current on the boundary of t
Publicado em: 2009
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30. OTIMIZAÇÃO TOPOLÓGICA DE ESTRUTURAS BIDIMENSIONAIS
The Topology Optimization is a numerical method which is able to provide in an automatic way the layout of a mechanic structure which attends a specific project criterion. In such case, this work begins with a revision of the literature about the structural optimization searching for a familiarization with the theme and its approaching. The studied method ba
Publicado em: 2009
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31. Structured high resolution algorithms in the solution of the euler equations in the two-dimensional space
The present work compares the high resolution schemes of (1) Yee, Warming and Harten, (2) Harten, (3) Yee and Kutler and (4) Hughson and Beran applied to the solution of aeronautical and aerospace problems. All schemes are TVD flux difference splitting type and are second order accurate in space. The Euler equations in conservative form, employing a finite v
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-06
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32. Orbitas periodicas em sistemas mecanicos / Periodic orbits in dynamical systems
In this work we study dynamical systems possessing Hamiltonian and time-reversible structures. The reversibility concept is de¯ned in terms of an involution. Initially we discuss the dynamics of Hamiltonian vector ¯elds with 2 and 3 degrees of freedom around an elliptic equilibrium in the presence of an involution which preserves the symplectic structure.
Publicado em: 2008
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33. Agrupamento em análise estatística de formas.
In this work, the k-means algorithm proposed by Hartigan and Wong is adapted to the case of random element observations in general metric space. Simulation results show that the performance of the algorithm in the case when the metric space is the shape space of the plane configurations, is independent on the choice of the usual shape metrics, more precisely
Publicado em: 2008
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34. Argumentation and metacognition in the arithmetical problem solving of division / Argumentação e metacognição na solução de problemas aritmeticos de divisão
The objective of this study was to investigate the existence of relations between the argumentation, the metacognition and the performance in the arithmetical problem solving of division, routine and not routine, in two different environments: interactive, by means of exchanging of argumentation in pairs and the employment of the technique of "think out in l
Publicado em: 2008
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35. A Methodology for Surface Reconstruction from Structured Light / A Methodology for Surface Reconstruction from Structured Light / Uma Metodologia para Reconstrução de Superfícies a Partir de Luz Estruturada / Uma Metodologia para Reconstrução de Superfícies a Partir de Luz Estruturada
The surfaces reconstruction from two-dimensional images is a problem present in various areas of knowledge, such as reconstruction of organs or parts of the human body from tomography; automatic recognition of characters; computer vision for assembly and inspection, processing of aerial and satellite images for weather forecast, among others. In all these ca
Publicado em: 2008
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36. Comparison among structured first order algorithms in the solution of the euler equations in two-dimensions
The present work studies upwind schemes applied to the solution of aeronautical and aerospace problems. The Harten, the Frink, Parikh and Pirzadeh, the Liou and Steffen and the Radespiel and Kroll algorithms, all first order accurate in space, are studied. The Euler equations in conservative form, employing a finite volume formulation and a structured spatia
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-12