Geometric Visualization
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Contribuições da Geometria Dinâmica na Introdução ao Estudo de Perspectiva para Alunos do Ensino Médio
Resumo Neste artigo, teve-se por objetivo investigar as contribuições de uma proposta interventiva de ensino de Geometria, baseada nas ideias básicas da perspectiva, para ampliar o repertório de representações planas e as habilidades de visualização de dez alunos do Ensino Médio de uma escola pública brasileira do Ceará. Com base no desenvolviment
Bolema. Publicado em: 01/08/2019
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2. Numerical fundamentals and interactive computer graphics system for the nonlinear analysis of planar frames
Abstract Recent scientific and computational advances have facilitated the analysis of slender structural systems subject to instability. With the employment of more sophisticated numerical tools and algorithms, it is possible to accurately determine the critical points (limit and bifurcation loads) as well as the post-critical behavior of the structural sys
REM, Int. Eng. J.. Publicado em: 2019-06
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3. Visualización y Razonamiento Configural
Abstract This research analyses the relationships between the identification of prototypical figures and geometrical knowledge in solving proof problems as a evidence of configural reasoning. We analyze the answers of 182 preservice teachers on two geometrical proof problems, which include a geometrical configuration and a request for proving a geometrical f
Bolema. Publicado em: 2017-04
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4. Vistas: atividades sobre a representação no espaço
Este trabalho teve como objetivo a criação de uma sequência didática para o ensino de geometria espacial através de atividades que envolvem visualização geométrica bidimensionais e tridimensionais, como a atividade Vistas, que auxilia na localização do objeto no espaço. Para tanto, foram realizados estudos sobre a representação no espaço de Jea
Publicado em: 2011
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5. Volume sculpting based on geometric tools
The analysis of volumetric datasets is the main concern in many areas ranging from geophysics to biomedical sciences. The direct visualization of these data plays an important role in this scenario, and in spite of developments in volume visualization techniques, interacting with large datasets still demands research efforts due to perceptual and performance
Journal of the Brazilian Computer Society. Publicado em: 2009-06
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6. Uma alternativa para o ensino de geometria : visualização geométrica e representações de sólidos no plano
Essa dissertação aborda a visualização geométrica e a representação de objetos tridimensionais em diagramas bidimensionais. O objetivo da pesquisa é a criação de uma seqüência didática que atenda esses propósitos. Para desenvolver essa seqüência, foram realizadas diversas atividades piloto com sujeitos do ensino fundamental, médio e superior
Publicado em: 2009
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7. Solving tangency problems by inversions and engineering applications. / Resolução de problemas de tangências por inversões e aplicações à engenharia.
A new method to solve the tenth case of Appolonius problem is presented in this study. This method is based on the geometric transformation called inversion and the concept of coaxal circumferences. Besides allowing the resolution of all configurations of the problem, it can also be used to solve other problems. We indicate the importance of the subject abou
Publicado em: 2007
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8. GeraÃÃo de rotas urbanas virtuais usando algoritmos genÃticos
Nowadays, the high level of complexibility designated by duties in many areas are expecting more from the man his natural senses can offered him. The use of Virtual Reality techniques can auxiliate the development of perception, interaction and consequently the every day productivity. Basing it in this idea, this research has as objectivity to create an appl
Publicado em: 2007
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9. Modelagem computacional de incêndios e queimadas : um estudo de caso sobre a Reserva Biológica do Lago Piratuba-AP
Motivated by urgent necessity to support the studies of strategies, controlling and combat to big fires, mainly in forest reserves, we develop a computational tool for assistance in this task. Our main goal in this work was to elaborate software, and to develop a first case study, that is fire simulation in the REBIO of the Lake Piratuba AP. We reached this
Publicado em: 2007
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10. Mathematics Education and the software Cabri: a research-action with students from 7th grade of Elementary School / A Educação Matemática e o software Cabri: uma pesquisa-ação com alunos de 7 série do ensino fundamental
The present work is a research about the influence of the software Cabri-Géomètre in Geometry teaching. It has as goal to verify if Cabri-Géomètre collaborates with the learning of geometric concepts in Ensino Fundamental. The adopted methodology was of qualitative nature of the kind research-action of Phenomenologic approach. The research was accomplish
Publicado em: 2007
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11. CAD e engenharia reversa como ferramentas de auxílio na fabricação de cartuchos para próteses ortopédicas
The manufacturing of above and below-knee prosthesis starts by taking surfac measurements of the patients residual limb. This demands the making of a cartridg with appropriate fitting and customized to the profile of each patient. The traditiona process in public hospitals in Brazil begins with the completion of a record file (according to law n388, of July
Publicado em: 2007
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12. Analysis of reinforced concrete beams using strut and tie models / Análise de vigas de concreto armado utilizando modelos de bielas e tirantes
One of the main advantages presented by the strut-and-tie model is generality. This model is able to approximately represent, in a realistic and systematic way, the majority of todays reinforced concrete elements. Furthermore, it allows the physics-intuitive visualization of the behavior presented by structural concrete. On the other hand, its potentials a
Publicado em: 2006