Controlled Switching
Mostrando 1-12 de 64 artigos, teses e dissertações.
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1. Efficacy and safety of paliperidone palmitate 3-month formulation in Latin American patients with schizophrenia: A subgroup analysis of data from two large phase 3 randomized, double-blind studies
Objective: To analyze the efficacy and safety of paliperidone palmitate 3-monthly (PP3M) in Latin American patients with schizophrenia vs. rest-of-world (ROW). Methods: We analyzed data from two multinational, double-blind (DB), randomized, controlled phase 3 studies including patients with schizophrenia (DSM-IV-TR) previously stabilized on PP1M/PP3M (open
Braz. J. Psychiatry. Publicado em: 15/04/2019
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2. Effectiveness of sucroferric oxyhydroxide in patients on on-line hemodiafiltration in real-world clinical practice: A retrospective study
Resumo Introdução: A hiperfosfatemia é uma grave consequência da doença renal crônica associada a risco aumentado de doença cardiovascular. O controle dos níveis séricos de fósforo dos pacientes em diálise é um desafio que requer, na maioria dos casos, o uso de quelantes de fosfato (QF). Parte da dificuldade se deve à baixa adesão ao tratament
J. Bras. Nefrol.. Publicado em: 04/02/2019
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3. DISPOSITIVO PARA EXTRAÇÃO LÍQUIDO-LÍQUIDO EM SISTEMAS DE ANÁLISES EM FLUXO
AbstractA device comprising a lab-made chamber with mechanical stirring and computer-controlled solenoid valves is proposed for the mechanization of liquid-liquid extractions. The performance was demonstrated by the extraction of ethanol from biodiesel as a model of the extraction of analytes from organic immiscible samples to an aqueous medium. The volumes
Quím. Nova. Publicado em: 2015-08
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4. Análise do comportamento de uma linha de um pouco mais de meio comprimento de onda sob diferentes condições de operação em regime permanente e durante a manobra de energização / Analysis of the behavior of an isolated transmission line with a little more than half wave lenght for different operating conditions in steady state and during the energization manouver
This work presents an analysis of the behavior of an isolated transmission line with a little more than half-wave length (2600 km) on fundamental frequency, 60 Hz, connected to an infinite busbar for different operating conditions. The voltage and current profiles for different loading conditions are monitored along the line. An analysis of the influence of
Publicado em: 2010
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5. Characteristics of austenitic stainless steel nitrided in a hybrid glow discharge plasma
A nitriding process based on two distinct nitrogen glow discharge modes, with sample temperatures ranging from 380 0C to 480 0C, was employed to treat the surface of austenitic stainless steel (SS 304). The temperature is controlled exclusively by switching the operation conditions of the discharges. First mode of operation is the conventional one, named cat
Brazilian Journal of Physics. Publicado em: 2009-09
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6. Uma proposta para o controle automático da repartida de poços operando por gas lift contínuo
The gas-lift wells restart process has high complexity. If the procedure is not carefully executed, the production liquid flowrate can show an oscillatory behaviour, called #severe slugs#. This situation is undesirable because it causes productivity loss, decreases oil-watergas separation process performance or can lead to the shutdown of the system. Nowaday
Publicado em: 2009
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7. Estudo da tÃcnica de controle direto de conjugado - DTC tradicional, aplicada ao MIT / Study of the direct torque control technique applied to cage induction machines
This paper presents a study of the Direct Torque Control (DTC) based in the traditional technique. It used Switching Tables to drive the electronic converter that feeds the induction motor. Speed control is achieved. Two switching strategies are studied, one that only allows operation in two quadrants and other for four quadrants. Simulation of a complete sy
Publicado em: 2007
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8. Digital system for synchronized switching of circuit breakers. / Sistema digital para manobra sincronizada de disjuntores - estudo e especificação funcional.
Nesta dissertação, discorre-se sobre manobra sincronizada de disjuntores. Entre as atividades desenvolvidas para a sua elaboração estão a análise de transitórios causados por manobras em capacitores, reatores e linhas de transmissão, estudos de sobretensão e estudos para a determinação de instantes favoráveis às manobras, sob o ponto de vista de
Publicado em: 2006
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9. Desenvolvimento de nos de chaveamento de pacotes opticos para aplicação em redes metropolitanas de acesso / Development of optical packet switching nodes for application in metro-acess networks
A new system for the generation, switching and routing of optical packets is described, aimed for use in nodes of next-generation optical networks (NGON). The optical packets are composed of an in-band frequency tone header, and a high-capacity transparent digital payload (~Gb/s), occupying separate fields. The optical node switching action includes blocking
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/06/2005
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10. Category fluency test: effects of age, gender and education on total scores, clustering and switching in Brazilian Portuguese-speaking subjects
Verbal fluency tests are used as a measure of executive functions and language, and can also be used to evaluate semantic memory. We analyzed the influence of education, gender and age on scores in a verbal fluency test using the animal category, and on number of categories, clustering and switching. We examined 257 healthy participants (152 females and 105
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-12
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11. Módulo eletrônico de controle para válvulas solenóides
This technical note describes a new and simple electronic circuit for driving solenoid valves. The circuit is based on a single integrated circuit DRV103, which is able to drive resistive or inductive loads up to 1.5 A. Switching of 12-V loads can be controlled by TTLlevel signals in two distinct steps. Initially, 12 V is applied during 110 ms, followed by 4
Química Nova. Publicado em: 2002-09
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12. REGIME-SWITCHING MODELS: THRESHOLDS, SMOOTH TRANSITIONS, AND NEURAL NETWORKS / MODELOS COM MÚLTIPLOS REGIMES PARA SÉRIES TEMPORAIS: LIMIARES, TRANSIÇÕES SUAVES E REDES NEURAIS
The goal of this thesis is to propose more flexible regime-switching models combining the ideas from the SETAR, STAR, and ANN specifications. The models discussed in this thesis are models with multi-regimes and with the transition between regimes controlled by a linear combination of known variables. A modelling cycle procedure, based on the work of Teräsv
Publicado em: 2000