Load Shedding
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. BK virus salivary shedding and viremia in renal transplant recipients
Abstract Objectives: This study aimed to verify the presence of polyomavirus BK (BKPyV) in the saliva of kidney transplant recipients and to correlate it with blood viremia. Material and Methods: We have conducted a cross-sectional study with a sample involving 126 renal transplant recipients. 126 samples of saliva and 52 samples of blood were collected fr
J. Appl. Oral Sci.. Publicado em: 14/01/2019
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2. Human polyomaviruses JC and BK in the urine of Brazilian children and adolescents vertically infected by HIV
The aim of this study was to characterize the urinary excretion of the BK (BKV) and JC (JCV) human polyomaviruses in a cohort of human immunodeficiency virus (HIV)-infected children and adolescents. One hundred and fifty-six patients were enrolled: Group I included 116 HIV-infected children and adolescents [median age = 11.4 years (y); range 1-22 y]; Group I
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-12
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3. Nonlinear instabilities on a granular bed sheared by a turbulent liquid flow
The granular media is of great importance in our quotidian, and their transport by a fluid flow is frequently found in nature and in industry. When the shear stresses exerted by the fluid flow on a granular bed are bounded to some limits, a mobile granular layer known as bed-load takes place in which the grains stay in contact with the fixed part of the gran
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-09
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4. Análise de planos de corte de carga através de métodos diretos / Algorithm for elaboration of plans for service restoration to large scale distribution systems
Sistemas Elétricos de Potência (SEPs) muitas vezes não são capazes de retomarem a uma nova condição de equilíbrio após grandes perdas de geração ou mesmo pela retirada de importantes linhas de transmissão. O déficit de potência causado por alguns desses distúrbios pode acarretar no declínio gradual da freqüência do sistema. Caso a reserva gi
Publicado em: 2010
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5. Analise dos sistemas de proteção e controle de instalações industriais com geradores sincronos durante operação ilhada / Protection and control systems analysis of industrial plants with synchronous generators during islanded operation
Modern industrial systems are very sophisticated installations with a high number of automatic processes and capability of isolated (islanded) operation after contingences by using onsite generators composed mainly by synchronous machines and steam turbines. Such installations, in the presence of generators, are generically called autoproducers. Since many o
Publicado em: 2009
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6. Monitoramento sorológico e da presença do DNA pró-viral do lentivirus caprino (CAEV) no sangue e semen de reprodutores infectados
Caprine arthritis-encephalitis (CAE) is a multisystemic viral syndrome in goats caused by small ruminant lentivirus (CAEV). The control measures prescribed for CAEV control are based on the indentification of infected animals through a suitable serological test. The aim of this work was to improve the CAE control measures through the association of indirect
Publicado em: 2009
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7. Operation procedures in power systems expansion planning / Recursos operativos no planejamento de expansão de sistemas de potência.
O requisito de continuidade de fornecimento de energia elétrica tem sido crescente na medida em que a sociedade de modo geral e os processos industriais em particular apresentam forte dependência desse insumo que assegura a todos satisfação e conforto. O consumidor é um agente econômico e ele faz parte do sistema elétrico (carga). No âmbito da análi
Publicado em: 2009
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8. HIV cervicovaginal shedding among postmenopausal and fertile-aged women: prevalence and associated factors / Avaliação da excreção genital do HIV-1 em mulheres menopausadas e em idade fértil: prevalência e fatores associados
INTRODUÇÃO: Poucos estudos têm focado as modificações fisiológicas que ocorrem no trato genital de mulheres menopausadas infectadas pelo HIV e sua associação com a excreção genital do vírus. Nesse estudo de corte transversal, comparou-se a excreção genital do HIV em mulheres menopausadas e em idade fértil em acompanhamento em um centro especial
Publicado em: 2009
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9. Human immunodeficiency virus (HIV) cervicovaginal shedding during the menstrual cycle in seropositive women followed at a specialized care center in São Paulo / Excreção cervicovaginal do vírus da imunodeficiência humana (HIV) ao longo do ciclo menstrual em mulheres soropositivas acompanhadas em serviço especializado de São Paulo
The sexual route is the main means of transmission of the human immunodeficiency virus (HIV). With the increasing numbers of HIV-infected women, the investigation of particular biological features of HIV infection in the genital tract has become more important. To evaluate HIV genital shedding during the menstrual cycle, we collected cervicovaginal lavages (
Publicado em: 2008
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10. Planejamento de curto prazo da operação incluindo criterios de estabilidade de tensão
This work presents a methodology to incorporate voltage stability criteria on power system short-term operation planning. The method consists of an active/reactive power re-dispatch for normal operation, and also a minimum load shedding strategy in case of critical contingencies, based in the direction provided by the participation factors obtained from the
Publicado em: 2004
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11. Melhoria das margens de estabilidade de tensão no problema do pre-despacho da operação atraves de corte mínimo de carga
The new philosophy of operating electric power systems exploring their maximum power transfer capability has placed the systems close to their stability limits. Therefore, it is important to assess the distance from the equilibrium point to the system voltage stability limit, and how to keep an adequate security margin from this limit. Considering the import
Publicado em: 2003
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12. ANALYSIS IN PERMANENT REGIMEN AND THE DOMAIN OF THE TIME FOR DETENTION AND VISUALIZATION OF PROBLEMS OF TENSION CONTROL / ANÁLISE EM REGIME PERMANENTE E NO DOMÍNIO DO TEMPO PARA DETECÇÃO E VISUALIZAÇÃO DE PROBLEMAS DE CONTROLE DE TENSÃO
This work presents a methodology to investigate high voltage control problems in electrical power systems based on steady stated and time domain computer simulations. The steady state analyses determine the V-Q curves using conventional power flow models. Time domain simulation uses conventional transient stability models to reproduce the phenomenon in detai
Publicado em: 2003