Active Power
Mostrando 37-48 de 338 artigos, teses e dissertações.
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37. Association between muscle strength and the cardiopulmonary status of individuals living with HIV/AIDS
OBJECTIVE: The purpose of this study was to compare aerobic function [anaerobic threshold (%VO2-AT), respiratory compensation point (%VO2-RCP) and peak oxygen uptake (VO2peak)] between physically active patients with HIV/AIDS and matched controls and to examine associations between disease status, poor muscle strength, depression (as estimated by the profile
Clinics. Publicado em: 2013
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38. Uma contribuição ao estudo e desenvolvimento de técnicas de controle de potências ativa e reativa do gerador de relutância varável para aplicação em sistemas de geração eólica de pequena potência / A constribution to the study and development of techniques for control of active and reactive power of the switched reluctance generator for application in wind power generation systems of small power
O objetivo deste trabalho é o de propor técnicas de controle de potências ativa e reativa de geradores de relutância variável (GRV) aplicados `a geração eólica de energia eólica. Desenvolveu-se uma técnica de controle direto de potência ativa utilizando um controlador proporcional-integral e outra técnica utilizando um controlador de modos desliz
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012
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39. Algoritmos para o planejamento da operação de sistemas modernos de distribuição de energia elétrica = : Algorithms for operation planning of modern electric distribution power systems / Algorithms for operation planning of modern electric distribution power systems
The distribution system operation planning stage is concerned with the determination of capacitor bank, transformer and voltage regulator settings. This must be accomplished considering active and reactive power injections of distributed generators and at the main substation, as well as physical and regulatory issues in order to improve the network performan
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/08/2012
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40. Efeito da redução da carga de treinamento sobre o desempenho de força máxima e potência e a manutenção da massa muscular / Effects of training load reduction on maximum strength and power performance and the maintenance of muscle mass
The aim of the present study was to evaluate the effect of two different reduced strength training programs on maximum dynamic strength (1RM), muscle power, and vertical jump (VJ) performance, and the maintenance of upper and lower limbs muscle mass (CSA). Thirty three young, physically active males, with no previous experience in strength training were rand
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/03/2012
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41. Sistema Fotovoltaico de Pequeno Porte Interligado à Rede ElÃtrica / A Low Power, Grid-Connected Photovoltaic System
A necessidade de obter uma matriz energÃtica menos poluente e em harmonia com o meio ambiente à um tÃpico muito importante no sÃculo XXI. Este trabalho apresenta um conversor cc-ca de dois estÃgios para injetar a energia de um arranjo de painÃis fotovoltaicos à rede elÃtrica. O primeiro estÃgio à um conversor elevador, isolado, baseado na CÃlula d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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42. O Governo da conduta : o poder médico e a liberdade dos indivíduos na sociedade contemporânea / The Government s conduct : medical power and freedom of individuals in contemporary society
The art of governing our own existence and of others has become an indispensable question for the constitution of the ways of subjectivity at the modernity. Michel Foucault has developed a rich and complex analytical perspective of this theme starting from the studies about the liberal governmentality. At the present time, a series of transformations on the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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43. MODELAGEM E CONTROLE DE UM REATOR ELETRÔNICO PARA LÂMPADAS HPS BASEADO NA CONEXÃO DIFERENCIAL DE CONVERSORES CC / MODELING AND CONTROL OF AN ELECTRONIC BALLAST FOR HPS LAMPS BASED ON DIFFERENTIAL CONNECTION OF DC CONVERTERS
This paper presents the development of an electronic ballast for high intensity discharge lamps, using the differential connection technique applied to Flyback converters. The power factor correction stage was implemented by a Buck-Boost converter operating in discontinuous conduction mode. Subsequently, the integrating converters technique was used to simpl
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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44. Condicionador unificado de qualidade de energia dual com controle simplificado / Dual unified power quality conditioner using a simplify control technique
Esta Dissertação de Mestrado apresenta um condicionador unificado de qualidade de energia dual (iUPQC) trifásico a quatro fios, controlado analogicamente, composto por dois filtros ativos, o série e o paralelo. O filtro ativo paralelo é controlado em tensão, responsável por manter a tensão da carga senoidal, regulada, equilibra e livre de harmônicos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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45. EFEITOS DOS SUBPRODUTOS DA AROEIRA E DO BIOFILME A BASE DE QUITOSANA NA PÓS-COLHEITA E CONTROLE DA ANTRACNOSE EM GOIABAS PALUMA.
Guava is cultivated in many parts of the world, but the high perishability and the incidence of diseases such as anthracnose limits its commercialization. The challenge to the method used to attempt to solve these problems, the use of chemicals, has instigated the conduct of research with products. Thus, plantas have been studied mant times have active subst
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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46. Efeito de quatro semanas de treinamento com oclusão de fluxo sobre os índices de aptidão aeróbia, composição corporal e força muscular / Effect of four weeks of blood flow training in the aerobics, strength and body composition variants
The aim of this research was analyze the effect of a training realized in cycle ergometer with leg blood flow occlusion on aerobic fitness, muscular strength and body composition parameters. Participate in this study 11 apparently healthy individuals of both genders, with ages between 18 and 30 years old. Subjects performed before and after four weeks of tra
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2012
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47. Increased coherence among striatal regions in the theta range during attentive wakefulness
The striatum, the largest component of the basal ganglia, is usually subdivided into associative, motor and limbic components. However, the electrophysiological interactions between these three subsystems during behavior remain largely unknown. We hypothesized that the striatum might be particularly active during exploratory behavior, which is presumably ass
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-08
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48. Simón Bolívar's Republic: a bulwark against the "Tyranny" of the Majority
Based on Bolívar's speeches, decrees, and correspondence as well as on Gran Colombia's constitutions and laws, this essay examines the tensions within Bolívar's vision of Venezuela's and New Granada's society produced by his republican, yet authoritarian and hierarchical ideas, his concern for keeping the lower classes of African descent in check, and his
Revista de Sociologia e Política. Publicado em: 2012-06