198 resultados para axes
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Pós-graduação em Engenharia Elétrica - FEIS
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The British sports suffered an unprecedented crisis in the early 80s instabilities political, economic crisis and lack of planning put the English sport in a very critical situation. However, a number of sports public policies were proposed from the 80's, effectively, completely changed the situation of English sport, which has prompted the development of this research. Thus, the present study, qualitative, aims to analyze the organization and evolution of the sport in the UK, based on the British government projects of the last 30 years included in the Sport Development database. Therefore, the study was developed by the union of bibliographic research, exploratory and documentary. First, after literature, documents were selected, using the academic database Sport Development, in the library of policy documents, separate area of the database containing only the English sport policy documents. For delimitation of the study were analyzed documents from 1980 to 2013, of which eight were selected on which to base discussions in this study. The documents were analyzed using thematic content analysis technique, based on two thematic axes: Axis 1 - funding and Axis 2 - priority groups. The results indicate that the analyzed initiatives show a process of evolution and maturation of public policies of Sport England, both on the issue of financing, such as with regard to priority groups, which have changed and adjustments over the years. It was also noted that much can be learned from these initiatives, even in helping to solve problems of the Brazilian reality. Suggest new studies involving sports management from different countries, in order to leverage other perspectives to support the development of public policies for sport and recreation in the country, seeking successful examples
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Consider a finite body of mass m (C1) with moments of inertia A, B and C. This body orbits another one of mass much larger M (C2), which at first will be taken as a point, even if it is not completely spherical. The body C1, when orbit C2, performs a translational motion near a Keplerian. It will not be a Keplerian due to external disturbances. We will use two axes systems: fixed in the center of mass of C1 and other inertial. The C1 attitude, that is, the dynamic rotation of this body is know if we know how to situate mobile system according to inertial axes system. The strong influence exerted by C2 on C1, which is a flattened body, generates torques on C1, what affects its dynamics of rotation. We will obtain the mathematical formulation of this problem assuming C1 as a planet and C2 as the sun. Also applies to case of satellite and planet. In the case of Mercury-Sun system, the disturbing potential that governs rotation dynamics, for theoretical studies, necessarily have to be developed by powers of the eccentricity. As is known, such expansions are delicate because of the convergence issue. Thus, we intend to make a development until the third order (superior orders are not always achievable because of the volume of terms generated in cases of first-order resonances). By defining a modern set of canonical variables (Andoyer), we will assemble a disturbed Hamiltonian problem. The Andoyer's Variables allow to define averages, which enable us to discard short-term effects. Our results for the resonant angle variation of Mercury are in full agreement with those obtained by D'Hoedt & Lemaître (2004) and Rambaux & Bois (2004)
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Pós-graduação em Odontologia Restauradora - ICT
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Pós-graduação em Agronomia (Energia na Agricultura) - FCA
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Pós-graduação em História - FCLAS
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Objective: The use of Er:YAG laser operating in the 3 μm range with adjustable power and pulses has become popular for dental and medical practice due to its high photoablative capacity, surgical precision and antimicrobial action. Background data: The existing fiberoptic tips irradiate lasers parallel to the long axes of the tooth limiting its efficiency in the root canal. Methods: We evaluated hollow fiberoptic tips obtained from silicate glass as a means of Er:YAG laser conduction in dental procedures. The fiber tips were molded from capillary tubes with different profiles so that their ends would have cylindric, conical or spherical shapes. The performance of the three fibers as a means of propagation of Er:YAG (λ = 2.94 μm) laser radiation was compared to that of a solid sapphire fiber at 10 Hz and 200 mJ and of 20 Hz and 500 mJ. The profiles of frontal and lateral burning were visualized on thermal paper. Results: Analysis of these profiles demonstrated that the sapphire tip and the hollow fiber of cylindric section did not differ significantly in the profiles of frontal burning, and no lateral burning was detected. The fibers of the conical and spherical sections, although presenting attenuation in the frontal output power, showed a larger burning area in the frontal profile, in addition to producing lateral burning. Conclusions: The results indicate that commercial hollow fiberoptics have advantages such as easy manufacture of the different tip shapes, great adaptability, low cost, and a low loss of transmission. © Mary Ann Liebert, Inc.
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Pós-graduação em Engenharia Elétrica - FEB
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Pós-graduação em Educação - FCT