182 resultados para Geometria computacional


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The design of implant structure is still a questioning to the professionals, while their variations can to influence of stress distribution favorably to bone. Therefore, the aim of study was to review addressing the topic of osseointegrated implants design establishing answers for the patient oral rehabilitation, according variations existing on the market. It was conducted a detailed search strategy by the PubMed/ Medline and Bireme, it was used as descriptors: “dental implants cylinder”; “dental implants thread”; “dental implants geometry”, until May 2014. From 798 articles, after review were selected 18 articles and 1 specific area book. The results were divided to compare design of implant and threads for further discussion and conclusions. Thus, conclude that the threads implants are best used because of its advantages with respect to the stress distribution and stability primary. The variations of the differents types of threads, have influence for stress distribution.

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The main aim of this paper was to use the REZZ software to calculate the tank volume rainwater harvesting system. For this purpose, rain data of Ponta Grossa-PR-Brazil were used considering different statistical treatment (average, 75%, 85%, 95% and 99% of confidence) and different roof areas (50, 80, 120 and 200 m2). The harvesting system was considered only for toilet flush in households with 3, 4 and 5 inhabitants. There were applied the following methods/concepts: Flow equalization (Rippl); Brazilian method as well the English and German practical methods. Further, the mass-balance was simulated for some conditions. All considered methods are described in NBR15527/07, the Brazilian standard for rainwater harvesting. As expected, the results pointed out for huge differences depending on the choice method and the statistical treatment of the rain data. The REZZ appliance showed to be useful thus permitting to set different conditions and to obtain rapid results in order to assist designers to adopt the best cistern volume for each particular case.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Matemática Universitária - IGCE

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Pós-graduação em Matemática Universitária - IGCE

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Docência para a Educação Básica - FC

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Apresenta-se neste trabalho experiências obtidas através de 06 (seis) anos consecutivos de trabalho com a disciplina de Geometria Espacial em turmas de formação inicial de professores de matemática. A proposta de trabalho em grupos colaborativos se justifica pela necessidade atual de os professores em atividade utilizarem essa poderosa ferramenta como facilitadora da aprendizagem pessoal e dos estudantes sob sua orientação. Os alunos das várias turmas foram desafiados à tarefa de apresentarem, ao final da disciplina (semestre), um trabalho contendo: material escrito (capa, formatação, desenvolvimento do tema, cálculos, desenhos, resultados e referências), material concreto produzido com canudos e fitilho (sólidos construídos: acabamento, uniformização, montagem e medidas) e apresentação oral do grupo (arquivos de programas de apresentação). A metodologia proposta para a realização dessa tarefa em todas as turmas foi de grupos colaborativos, com em média 05 (cinco) alunos cada. Para a 1ª turma foi proposta a construção de “esqueletos” dos poliedros de Platão, com a maior aresta (canudinho) fixada. Cada grupo deveria observar uma propriedade dentre as seguintes: sólidos com a mesma área total; com o mesmo volume; com uma mesma esfera inscrita e com uma mesma esfera circunscrita. Todo material coletado dos grupos (escrito, construído ou digital/apresentação oral), está sendo devidamente catalogado, para então ser disponibilizado no Laboratório de Ensino de Matemática do referido curso. Os trabalhos propostos posteriormente foram gradativamente sendo mais desafiadores. O último trabalho proposto (2012) teve o seguinte tema: Poliedros Arquimedianos ou semirregulares.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The chemistry is a science little adored by students, because it is a modeling science. The study in chemistry needs a little of abstraction to be able to view something that can not being viewed, that is why chemistry uses many models and tools. The periodic table is a tool useful, but complicated to be understood, where many students end up just decorating for a test, and losing interest in class. The use of ludic games is a way to facilitate the teaching-learning process, because a game has rules to be followed, so the student will get involved to the content to be studied in addition to having to respect rules. Therefore, it is needed that teachers make their lectures more attractive for their students. This work has analyzed an alternative method for teaching the periodic table using basic computer resources, in order to propose a ludic game to a different class, seeking to get the students attention in order to facilitate the understanding of the content

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Pós-graduação em Educação Matemática - IGCE

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Pós-graduação em Engenharia Mecânica - FEG

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Pós-graduação em Agronegócio e Desenvolvimento - Tupã

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This research presents an investigation about the relevance of visualization in teaching geometry. Our interest turns to analyzing the use of technology in teaching geometry, seeking to highlight their contribution to learning. The students of today - second decade of the 21st century - require that, each time more, the school move towards the integration of technologies for teaching since tablets, smartphone, netbook, notebook are items present on daily life of most students. Thereby, we investigate, taking the phenomenological orientation, the potential of educational software, especially the Geogebra 3D, directed at teaching math and favoring the work with the geometry viewing. At work we bring some theoretical considerations about the importance of viewing for the geometric learning and the use of technologies. We build an intervention proposal for the classroom of the 7th year of elementary school with tasks aimed at visual exploration and allow the teacher to work the concept of volume of geometric solids