Load Rejection
Mostrando 1-12 de 14 artigos, teses e dissertações.
-
1. Recurrent hepatitis C treatment with direct acting antivirals – a real life study at a Brazilian liver transplant center
Recurrent hepatitis C (HCV) after liver transplantation (LT) is an important cause of morbidity and mortality. Antiviral treatment is recommended to avoid unfavorable outcomes. Direct-acting antivirals (DAA) have transformed HCV treatment, with higher efficacy and fewer side-effects than interferon-based therapies traditionally used. To evaluate DAA treatmen
Braz J Med Biol Res. Publicado em: 05/08/2019
-
2. CONTROLE DE VELOCIDADE SENSORLESS DE MOTORES BRUSHLESS DC SUBMETIDOS A VARIAC~OES PERIODICAS DE CARGA / SENSORLESS SPEED CONTROL OF BRUSHLESS DC SUBJECTED TO PERIODIC LOAD TORQUE
Esta dissertac~ao apresenta um sistema de acionamento e controle de velocidade sensorless para motores Brushless DC utilizados em compressores alternativos. Estes compressores provocam variac~oes periodicas de carga sobre o motor causando vibrac~oes mec^anicas e rudo acustico. Em vista disso, um controlador discreto de velocidade baseado no princpio do model
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/07/2011
-
3. µ-synthesis for unmanned underwater vehicles current disturbance rejection
This note focuses attention on a novel approach to disturbance rejection when the µ-synthesis control procedure is applied to Unmanned Underwater Vehicles (UUVs). Environmental external disturbances simplify to ocean current for a totally submerged vehicle and greatly contributes for hydrodynamical loads and the tether cable disturbance. Our case scenario d
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-09
-
4. Estudo sobre determinação de parâmetros elétricos de geradores síncronos de polos salientes / Study about determination of electric parameters of synchronous generators of salient poles
Synchronous generators are responsible for almost all electric energy produced in the world. Due to its natural application in electric energy generation of low speed type, salient poles synchronous generators are widely used in hidroelectric energy generation, in energy convertion in ships, emergency engine/generator groups or in local generation not linked
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/08/2010
-
5. Identificação dos parâmetros necessários para análise de rede de estrutura múltipla com base na análise por simulação de fluxo TCP por vazão de fluidos
The major worldwide operators of transport in telecommunication networks have sought tools that, together with traffic statistics, allow their infrastructure to be enabled such that there is no rejection or delay of traffic due to transport capacity. Observing a private network with a considerable geographic size and, for a private high-density network with
Publicado em: 2010
-
6. Control of integrating process with dead time using auto-tuning approach
A modification of Smith predictor for controlling higher order processes with integral action and long dead-time is proposed in this paper. The controller used in this Smith predictor is an Integral-Proportional Derivative controller, where the Integrator is in the forward path and the Proportional and Derivative control are in the feedback, acting on the fe
Brazilian Journal of Chemical Engineering. Publicado em: 2009-03
-
7. Transitórios em rejeição de carga envolvendo linhas de transmissão e motores assíncronos. / Transients during load rejection involving transmission lines and asynchronous motors.
Apesar do grande interesse no comportamento dinâmico das cargas, existe uma lacuna em investigações considerando o seu desempenho transitório, quando alimentadas por linhas de transmissão e a rejeição de carga ocorre com a abertura dos disjuntores do lado fonte, causando sobretensões temporárias. Este trabalho analisa as sobretensões temporárias c
Publicado em: 2009
-
8. Domestic wastewater post-treatment using ornamental plants : Constructed-Wetlands with gravel and bamboo as substrate / Plantas ornamentais no pos-tratamento de efluentes sanitarios : wetlands-construidos utilizando brita e bambu como suporte
Anaerobic reactor s effluent post-treatment systems make possible the improvement of anaerobic-treated wastewater characteristics in diverse conditions in a simple way. This posttreatment design flexibility will be able to support small communities to have better environmental conditions even if they did not have a traditional wastewater plant previously. Th
Publicado em: 2008
-
9. Collective action dilemmas : mechant service companies and tax legislation in Contemporary Brazil / Dilemas da ação coletiva : prestadoras de serviços mercantis e legislação tributaria no Brasil Contemporaneo
This research schematize collective actions faced by representatives of merchant service companies in opposition to the parameters embedded in three tributary prepositions going through the federal sphere between 2002 and 2005 which affected a great deal the economical unities of economical service companies, mainly micro and small size enterprises: The Prov
Publicado em: 2007
-
10. Molecular profile of human cytomegalovirus in bone marrow transplant recipients with active infection / Aspectos moleculares do citomegalovirus humano durante infecção ativa em pacientes submetidos ao transplante de medula ossea
Human Cytomegalovirus (HCMV) remains a significant cause of morbidity in immunocompromised patients, especially in bone marrow transplant recipients. It may manifest severe complications including hepatitis, gastrointestinal disease, and interstitial pneumonitis or as so-called ?HCMV viral syndrome? with fever, leukopenia, and thrombocytopenia. The HCMV may
Publicado em: 2006
-
11. Lamivudine therapy for hepatitis B in renal transplantation
Antiviral therapies are associated with an increased risk of acute rejection in transplant patients. The aim of the present study was to evaluate the efficacy and safety of lamivudine therapy for hepatitis B virus (HBV) infection in renal transplant patients. Six patients were included in this study. They received 150 mg/day of lamivudine during a follow-up
Brazilian Journal of Medical and Biological Research. Publicado em: 2002-02
-
12. Estudo da pressão arterial e manipulação renal de sodio em ratos diabeticos induzidos pela administração de estreptozocina : implicações do sistema nitroxidergico
The role ofthe kidney in the control ofhydrosaline homeostasis in patients or experimental models with diabetes mellitus has been striking demonstrated by several studies. Recently, growing evidence suggesting that precocious tubular dysfunction may precede glomerular modifications and influence directly the renal function and cardiovascular homeostase. Howe
Publicado em: 2001