Multiple Disturbances
Mostrando 25-36 de 71 artigos, teses e dissertações.
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25. Application of wavelet transform for power quality analysis in electric arc furnace. / Aplicação da transformada Wavelet na análise da qualidade de energia em fornos elétricos a arco.
A new method for the detection and classification of the disturbances that affect the electric power quality in industrial electric systems with electric arc furnaces was developed in this work. During the fusion process of the electric arc furnaces, may occur several events that affect the electric system to which it is inserted may occur, having as charact
Publicado em: 2008
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26. ICTIOFAUNA, CONSERVAÇÃO E INTERFERÊNCIAS ANTROPOGÊNICAS EM RIACHOS DO ALTO DA BACIA DO RIO PARANÁ EM GOIÁS, REGIÃO CENTROOESTE
This study was conducted in the basin of the João Leite River, which integrates the high Paraná River basin in the southwest of the Goiás State. This river has origin in the Ouro Verde county and it empties in the Meia Ponte River, its basin shelter about 1.600.000 inhabitants distributed in seven counties. The weather is classified as hot and sub-humid w
Publicado em: 2008
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27. Efficacy of Aquatic Respiratory Exercise-Based Program in Patients with Fibromyalgia: randomized clinical trial / Eficácia de um programa de exercícios respiratórios aquáticos em indivíduos com fibromialgia: ensaio clínico randomizado
Fibromyalgia syndrome is a chronic rheumatic condition with unknown etiology and unclear pathogenesis. It is characterized by pain, sleep disturbances and fatigue. Psychological symptoms are also observed, including mood disturbance, anxiety, depression, phobia and panic syndrome, contributing to the complex disease symptomatology, as well as to the reduced
Publicado em: 2008
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28. The trajectory of Laila in the AMA : intertwined stories / A trajetoria de Laila no AMA : historias entrelaçadas
This research sought to understand which elements are important for working with people with disabilities. The problem that gave rise to this research was the absence of longitudinal studies with children with disabilities engaged in extra-curricular adapted motor activity programs. Therefore, it was decided to carry out a case study, with a qualitative, lon
Publicado em: 2008
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29. Study of the community of bats of a cárstic area of Alto Ribeira -SP. A comparison with 1980 / Estudo da comunidade de morcegos na área cárstica do Alto Ribeira-São Paulo. Uma comparação com 1980
The survey on Brazilian cave bats was initiated by TRAJANO (1981) that between 1978 and 1980, studied the community that uses caves in a carstic area of Alto Ribeira, south of the State of São Paulo. Another studies had been followed in the north of São Paulo, Distrito Federal and Bahia, and recent works are being carried through in new areas, filling an i
Publicado em: 2008
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30. Sistema supervisorio de gestão de multiplas fontes de suprimento para aplicações em veiculos eletricos / Energy management supervisory system of multiple power sources for electric vehicle applications
This work introduces an Energy Management strategy, for electrical vehicle applications, based on a fuzzy logic supervisory system that is able to combine three different power supply sources, i. e., fuel cell, battery and supercapacitor. The supervisory system coordinates the power flow between the power sources so that the system is able to provide high po
Publicado em: 2007
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31. Translate, Adapt e Validate of Test de Vocabulario en ImÃgenes Peabody (TVIP) / TraduÃÃo, adaptaÃÃo e validaÃÃo do test de vocabulÃrio em imÃgenes peabody (TVIP)
The aim of the current study was to translate, adapt and validate a receptive vocabulary test, the PPVT (Peabody Picture Vocabulary Test), and point out its contributions for the construction and validation of instruments of psychological evaluation in the Portuguese language, providing tools for psychologists and speech therapists dealing with children s ve
Publicado em: 2007
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32. Detecção identificação e reconfiguração de falhas múltiplas em sensores de sistemas lineares invariantes no tempo / Detection, identification and reconfiguration of multiple faults in sensors of linear time invariant systems
This work has as objective to develop a technique for the detection, identification and reconfiguration of multiple faults in sensors of linear time invariant systems using the analytical redundancy approach. It is the result of the study of several fault detection and identification techniques found in the literature, that use the state observer method due
Publicado em: 2005
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33. Avaliação experimental da curva de resposta da temperatura de saida de fluidos newtonianos no processo de resfriamento em trocador de calor de tubo duplo
Double pipe heat exchangers are used in food industries for thermal treatment processes, such as pasteurization of juices and fruit pulps. An effective control of temperature of these processes is extremely important for the :finalquality of the food products, which usually present different characteristics of flow and heat transfer. The present work consist
Publicado em: 2002
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34. Estudo exploratorio da aplicabilidade dos meios supercriticos para a extração e o processamento de oleos vegetais com enfase em controle aplicado a unidade extratora
Since it was proposed in 20 s, the solvent extraction process for oilseeds has employed petrol-derived solvents. Even thought these extraction agents have been significantly improved in quality, the hexane (nowadays used) still presents detrimental features such as toxicity, non-renewability as well as high flammability. Supercritical solvents, most often th
Publicado em: 1998
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35. Modelos computacionais de motores de indução em estudos transitorios de sistemas eletricos
This work presents a comprehensive analysis of the induction motor load behavior, when submitted to dynamical disturbances. The induction motor loads are represented by computational models of different orders, comprising single and double cage. Four major points of the problem are addressed: first, the performance of the different computational models in re
Publicado em: 1996
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36. Fatores associados a prevalencia de sintomas urinarios e genitais em mulheres climatericas
The estimation about the proportion of women carrying genitourinary symptoms varies from.11 to 50% in different researches donein distinct population. The climacteric is considered an aggravating factor of these disturbances. Supported on insuficient data basically in national levei, about the prevalence of ufinary and genital disturbances in climaterical an
Publicado em: 1996