Deviation Of Power
Mostrando 25-36 de 82 artigos, teses e dissertações.
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25. Análise de células t regulatórias foxp3+no líquen plano oral
T regulatory cells have the function of controlling immune responses and maintaining self-tolerance. The FoxP3 has been considered the most specific marker for Treg cells. The aiming of this paper was to evaluate the immunoexpression of FoxP3 in the inflammatory infiltrate from oral lichen planus (OLP) and to compare it with the infiltrate in fibrous inflamm
Publicado em: 2010
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26. Avaliação da função autonômica em portadores de cardiomiopatia hipertrófica com e sem síncope / Assessment of autonomic nervous function in patients with hypertrophic cardiomyopathy with and without syncope
BACKGROUND: Unexplained syncope is considered a risk factor for sudden death in hypertrophic cardiomyopathy (HCM). Several mechanisms are involved in its pathogenesis, including the difficulty in adaptation of the systemic vascular resistance to exertion and to orthostatic stress, which may be influenced by a dysfunction of the autonomic nervous system. The
Publicado em: 2010
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27. Folatos, capacidade antioxidante e trans-2-nonenal em cerveja brasileira / Folate, antioxidant capacity and E-2-nonenal in Brazilian beer
In the present study methods were adapted and applied to quantify levels of folate, antioxidant capacity assessment and E-2-nonenal quantification in Brazilian beers. 5 brands of Pilsen, non-alcoholic and Malzbier beers were used, in can and amber bottle. For determination of folates (folic acid - FA, 10-methyl-folic acid - 10Methyl, 5-methyltetrahydrofolate
Publicado em: 2010
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28. Numerical simulation of the flow under a hydraulic gate in a deviation tunnel of a hydroelectric power plant / Simulação numérica do escoamento sob a comporta de um túnel de desvio de usina hidrelétrica
Este trabalho apresenta a utilização de um modelo numérico para a determinação das forças hidrodinâmicas atuantes em comportas planas tipo vagão, utilizadas em obras de desvio de Usinas Hidrelétricas. Para isso foi utilizado o software comercial Fluent, onde foi gerado um modelo numérico tridimensional para diversas aberturas da comporta vagão ens
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/12/2009
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29. AnÃlise de tÃcnicas de controle de conversores conectados a redes elÃtricas
This work presents a performance analysis of some control techniques applied to voltage-source converters during transients in the power systems. In this sense, in all the computational simulations the converter was considered to be connected to the CHESF (Brazilian federal power utility) east system, which was represented in ATP. The transmission lines conn
Publicado em: 2009
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30. Alocação otima de reguladores de tensão em redes de distribuição de energia eletrica / Optimal placement of voltage regulators in distribution systems
This dissertation reports the development of a heuristic method for sizing and allocating voltage regulators in distribution radial primary feeders. The goals are to improve the voltage profile, to minimize the real power losses and to minimize equipment installation and maintenance costs. The proposed algorithm for the optimal allocation of voltage regulato
Publicado em: 2009
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31. Interferência de harmônicas em equipamentos de medição de energia elétrica. / Harmonic interference in equipment for measurement of eletrical energy.
This work addresses the reliability of energy meters in nonsinusoidal systems, looking for the increase of quality in the electric energy billing. To that purpose, it focuses on a fairer metering and a better relationship between the concessionaire and consumer. The tests were carried through in the laboratories of Eletropaulo, of the Electro-Technology and
Publicado em: 2009
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32. TRANFORMADA WAVELET E REDES NEURAIS ARTIFICIAIS NA ANÁLISE DE SINAIS RELACIONADOS À QUALIDADE DA ENERGIA ELÉTRICA / WAVELET TRANSFORM AND ARTIFICIAL NEURAL NETWORKS IN POWER QUALITY SIGNAL ANALYSIS
This work presents a different method for power quality signal classification using the principal components analysis (PCA) associated to the wavelet transform (WT). The standard deviation of the detail coefficients and the average of the approximation coefficients from WT are combined to extract discriminated characteristics from the disturbances. The PCA w
Publicado em: 2009
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33. Democracia, partidos e eleições: os custos do sistema partidário-eleitoral no Brasil.
This study addresses the financing system of electoral campaigns from the analysis of the rules that guide the funding of political parties in Brazil. Taking the 2006 general elections as a reference, it seeks to measure the amount of resources spent for the financial structuring of parties and elections, and determine the public benefits offered by the syst
Publicado em: 2009
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34. Evaluation of risk factors and prognosis criteria in severe maternal morbidity in obstetric ICU / Avaliação dos fatores de risco e criterios de prognostico na morbidade materna grave em UTI obstetrica
Introduction: In the last decade the identification of cases of severe maternal morbidity (SMM) has emerged as a promising complement or an alternative to the investigation of maternal deaths. The organic dysfunction is part of the continuum of SMM. Women admitted to intensive care units (ICU) during pregnancy or postpartum may be a good source of informatio
Publicado em: 2009
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35. The effect of an aerobic training program on the electrical remodeling of the heart: high-frequency components of the signal-averaged electrocardiogram are predictors of the maximal aerobic power
Increased heart rate variability (HRV) and high-frequency content of the terminal region of the ventricular activation of signal-averaged ECG (SAECG) have been reported in athletes. The present study investigates HRV and SAECG parameters as predictors of maximal aerobic power (VO2max) in athletes. HRV, SAECG and VO2max were determined in 18 high-performance
Brazilian Journal of Medical and Biological Research. Publicado em: 07/01/2007
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36. Estudo da formação de rastos nucleares em polímeros / Study of the Nuclear Tracks Formation in Polymers
The research in the field of material modification with ion implantation has greately improved, stimulated by technological applications in biology, medicine, electronics and other related areas. One of the correlated aspects in understanding these new materials is the identification and characterization of the damage produced by ion beam irradiation. In thi
Publicado em: 2007