194 resultados para Superfostato triplo


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2009

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Pós-graduação em Engenharia Mecânica - FEG

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O salto triplo existe há mais de 2000 anos e foi praticado, primeiramente, pelo povo celta, isto é, antigos habitantes da Europa Ocidental. Essa prova era praticada em competições esportivas rurais e expandiu-se pelo resto da Europa no século XIX. Atualmente, o Brasil serve como referência para outros países, já que tivemos grandes atletas que marcaram presença no cenário olímpico do salto triplo como, por exemplo, Adhemar Ferreira da Silva, Nelson Prudêncio e João Carlos de Oliveira. Apesar de ser uma das provas do atletismo mais antigas, o salto triplo ainda é muito pouco trabalhado em escolas de todo o país. Por essa razão, essa pesquisa, de caráter histórico-bibliográfico, tem como objetivo realizar um resgate histórico dessa prova, reunindo dados e informações pertinentes relacionados ao salto triplo. Nesse sentido, foram realizadas pesquisas no acervo de universidades como Unesp (Rio Claro), Unicamp e PUC-Campinas, além de web sites, com livros e artigos digitalizados, e registros diversos que pudessem contribuir para a elaboração desse trabalho. Esperamos, portanto, além de realizar o resgate histórico dessa prova, subsidiar o trabalho de professores de Educação Física no âmbito escolar, para que o ensino do salto triplo e do atletismo de forma geral se difunda e conquiste mais espaço nas escolas brasileiras

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This work was developed from the study by Araujo, R.A.N. et al. Stability regions around the components of the triple system 2001 SN263. (Monthly Notices Of The Royal Astronomical Society, 2012, v. 423(4), 3058-3073 p.) where it was studied the stable and unstable regions system (2001 SN263), which is a triple asteroid system, and these are celestial orbiting our sun. Being close to the Earth is characterized as NEA (Near-Earth Asteroids), asteroids and which periodically approach the Earth's orbit, given that there is great interest in the study and exploitation of these objects, it is the key can carry features that contribute to better understand the process of formation of our solar system. Study the dynamics of bodies that govern those systems proves to be greatly attractive because of the mutual gravitational perturbation of bodies and also by external disturbances. Recently, NEA 2001 SN263 was chosen as a target of Aster mission where a probe is sent for this triple system, appearing therefore the need for obtaining information for characterizing stable regions internal and external to the system, with respect to the effects of radiation pressure. First, this study demonstrated that the integrator used showed satisfactory results of the orbital evolution of bodies in accordance with previous studies and also the characterization of stable and unstable regions brought similar results to the study by Araujo et al. (2012). From these results it was possible to carry out the implementation of the radiation pressure in the system in 2001 SN263, in a region close to the central body, where the simulations were carried out, which brought as a result that the regions before being characterized as stable in unstable true for small particles size from 1 to 5 micrometers. So the next orbital region to the central body and the ... ( Complete abstract click electronic access below)

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This work was developed from the study by Araujo, R.A.N. et al. Stability regions around the components of the triple system 2001 SN263. (Monthly Notices Of The Royal Astronomical Society, 2012, v. 423(4), 3058-3073 p.) where it was studied the stable and unstable regions system (2001 SN263), which is a triple asteroid system, and these are celestial orbiting our sun. Being close to the Earth is characterized as NEA (Near-Earth Asteroids), asteroids and which periodically approach the Earth's orbit, given that there is great interest in the study and exploitation of these objects, it is the key can carry features that contribute to better understand the process of formation of our solar system. Study the dynamics of bodies that govern those systems proves to be greatly attractive because of the mutual gravitational perturbation of bodies and also by external disturbances. Recently, NEA 2001 SN263 was chosen as a target of Aster mission where a probe is sent for this triple system, appearing therefore the need for obtaining information for characterizing stable regions internal and external to the system, with respect to the effects of radiation pressure. First, this study demonstrated that the integrator used showed satisfactory results of the orbital evolution of bodies in accordance with previous studies and also the characterization of stable and unstable regions brought similar results to the study by Araujo et al. (2012). From these results it was possible to carry out the implementation of the radiation pressure in the system in 2001 SN263, in a region close to the central body, where the simulations were carried out, which brought as a result that the regions before being characterized as stable in unstable true for small particles size from 1 to 5 micrometers. So the next orbital region to the central body and the ... ( Complete abstract click electronic access below)

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Analisi biomeccanica delle variabili dinamiche nel doppio e triplo salto Lutz nel pattinaggio a rotelle.

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Si è condotta una ricerca e analisi sulla biomeccanica del salto Lutz nel pattinaggio artistico a rotelle, mettendo a confronto le variabili che caratterizzano il salto doppio e triplo. La tesi è suddivisa in cinque capitoli. Nel primo viene trattata la disciplina del pattinaggio artistico a rotelle, soffermandosi sulla descrizione delle diverse tipologie di salto, in particolar modo riguardo la tecnica del Lutz. Inoltre vengono riportati alcuni articoli, tratti dalla letteratura, riguardanti variabili cinematiche e dinamiche di altre tipologie di salto nel pattinaggio artistico su ghiaccio. Nel secondo capitolo, invece, è stata descritta l’analisi biomeccanica condotta mediante l’uso dei sistemi optoelettronici. Nel terzo è stata illustrata la strumentazione utilizzata, i soggetti esaminati e le varie fasi seguite per l’elaborazione dei dati. Per concludere, negli ultimi due capitoli sono stati riportati i risultati, e le considerazioni finali dello studio fatto.

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