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Study of a magnetic gearbox for energy storage system application. Contains simulation results and tests carried out to verify the behavior of the torque output as a function of geometric and operation parameters. Focused on magnetic gearboxes with gains of 10 times or higher operating at high speed.
This thesis consists of a fatigue study carried out on an aluminum alloy 2024-T3 in both time domain and frequency domain. Non-zero mean random signals of strain and stress are analyzed in time domain using usual Rainflow method and the damage is accumulated with the Palmgren-Miner rule, according to mean stress equations. The signals are analyzed in frequency domain using the power spectral density and the probability density function. The spectral domain analysis does not consider the negative effect of the mean stress in metal life under fatigue, so the correction factors for mean stresses developed by Goodman, Morrow, and Smith-Watson-Topper are used to change the power spectral density ...
In Expectations Unfulfilled scholars from Argentina, Belgium, Brazil, Mexico, Norway, Spain and Sweden study the experiences of Norwegian migrants in Latin America between the Wars of Independence and World War II.
Evaluating dietary intake, determining energy metabolism, and conducting other nutritional assessments are essential in understanding the relationships between diet, exercise, health, and physical performance, especially in athletes. The first comprehensive source on the subject, Nutritional Assessment of Athletes thoroughly examines these methods,
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One of the most intriguing paleobiogeographical phenomena involving the origins and gradual sundering of Gondwana concerns the close similarities and, in most cases, inferred sister-group relationships of a number of terrestrial and freshwater vertebrate taxa, e.g., dinosaurs, flying birds, mammals, etc., recovered from uppermost Cretaceous/ Paleogene deposits of West Antarctica, South America, and NewZealand/Australia. For some twenty five extensive and productive investigations in the field of vertebrate paleontology has been carried out in latest Cretaceous and Paleogene deposits in the James Ross Basin, northeast of the Antarctic Peninsula (AP), West Antarctica, on the exposed sequences ...
Clouds play a critical role in the Earth's climate, general atmospheric circulation, and global water balance. Clouds are essential elements in mesoscale meteorology, atmospheric chemistry, air pollution, atmosphericradiation, and weather forecasting, and thus must be understood by any student or researcher in the atmospheric sciences.Cloud Dynamics provides a skillful and comprehensive examination of the nature of clouds--what they look like and why, how scientists observe them, and the basic dynamics and physics that underlie them. The book describes the mechanics governing each type of cloud that occurs in Earth's atmosphere, and the organization of various types of clouds in larger weath...
Os crimes relacionados ao consumo de drogas nunca deixaram de estar em evidência. A forma de abordagem a esse tipo de criminalidade é que vem sofrendo algumas transformações ao longo das décadas. No Brasil se ouve falar em Justiça Terapêutica, como sendo uma variante do modelo norte-americano das Cortes de Drogas, a qual reconhece que, afastando-se o uso de droga em relação ao infrator, ocorreria uma redução importante da criminalidade, trazendo ainda outros benefícios sociais e individuais. Ocorre, contudo, que existem inúmeras indefinições e incompreensões acerca do que constitui a Justiça Terapêutica e as Cortes de Drogas. Tais incertezas trazem consigo uma grande insegu...
Como que navegando na busca dos olhares que estruturam e reestruturam fragmentos do arranjo fractal produtivo da música, somos levados aos caminhos antropológicos dos ritos e de suas dimensões simbólicas. O palco ganha um espaço de ressignificação do sentido de nossos atos, a soma de nossos gestos, o senso de nossos jeitos. E estas são as primeiras palavras do estudo de Bruno, citando Gilberto Gil em seu discurso de posse como Ministro da Cultura que transforma o texto num caminho inexorável na busca de um novo paradigma para a construção de um marco conceitual que integre economia, cultura e antropologia.
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