Current Mode Control
Mostrando 1-12 de 63 artigos, teses e dissertações.
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1. POR UMA VISÃO DE LINGUAGEM CIBORGUE E COLETIVA
RESUMO Este artigo propõe uma visão de linguagem para pensar a complexidade da produção do corpo e das subjetividades contemporâneas, no que Deleuze (1990) denominou sociedades de controle (1990) e Preciado (2018), era farmacopornográfica. Para tanto, refletiremos sobre o corpo na atualidade e conceituaremos o modo de subjetividade produzido no momento
Trab. linguist. apl.. Publicado em: 23/09/2019
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2. Twenty-four-month clinical performance of different universal adhesives in etch-and-rinse, selective etching and self-etch application modes in NCCL – a randomized controlled clinical trial
Abstract Objective The aim of this randomized, controlled, prospective clinical trial was to evaluate the performances of two different universal adhesives and one etch-rinse adhesive for restoration of non-carious cervical lesions (NCCLs). Material and Methods Twenty patients with at least seven NCCLs were enrolled. Lesions were divided into seven group
J. Appl. Oral Sci.. Publicado em: 11/04/2019
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3. Exercise in Pregnancy: The Impact of an Intervention Program in the Duration of Labor and Mode of Delivery
Resumo Objetivo Avaliar o efeito de um programa de exercícios na gravidez (baseado nas recomendações do American College of Obstetricians and Gynecologists) na via, duração e início do trabalho de parto. Métodos Estudo realizado no Hospital Senhora da Oliveira entre outubro de 2015 e fevereiro de 2017. Trata-se de um estudo quasi-experimental com
Rev. Bras. Ginecol. Obstet.. Publicado em: 2019-02
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4. LCL-T Resonant Converter Based on Dual Active Bridge Topology in Solar Energy Applications
ABSTRACT: Resonant LCL-T converter can operate as stable voltage source, being fed from current, for instance, the photovoltaic battery. It is shown that LCL-T resonant tank has intrinsic ability to convert stable AC current into stable AC voltage thus parametrically regulating output voltage at a fixed value. This mode of operation is made possible by the u
J. Aerosp. Technol. Manag.. Publicado em: 2017-06
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5. Advances in induced resistance by natural compounds: towards new options for woody crop protection
ABSTRACT: The activation of defensive responses of plants is a promising tool for controlling pests in conventional agriculture. Over the last few years, several compounds have been studied to protect crops from pests, without displaying direct toxicity for pathogenic organisms. These compounds have the ability to induce a priming state on the plants that re
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-02
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6. A Study on Formation Process of Secondary Upsetting Defect in Electric Upsetting and Optimization of Processing Parameters Based on Multi-Field Coupling FEM
The electric upsetting process is an excellent electrically assisted preforming technique with electrical-thermal-mechanical multi-field coupling characteristic. The secondary upsetting defect in electric upsetting with inappropriate parameters combinations could result in folds in subsequent forging process. In order to analyze the formation process of the
Mat. Res.. Publicado em: 04/07/2016
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7. 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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8. 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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9. Modelagem e Controle de Conversores Fonte de Tensão Utilizados em Sistemas de Geração Fotovoltaicos Conectados á Rede Elétrica de Distribuição
Esta dissertação apresenta uma estratégia de controle para sistemas de geração fotovoltaicos, de único estágio, trifásicos, conectados á rede elétrica de distribuição. São desenvolvidos modelos matemáticos para representar as características dinâmicas dos painéis fotovoltaicos, do conversor fonte de tensão (VSC - Voltage Source Converter")
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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10. SCAE: uma abordagem baseada em agentes inteligentes para gerenciamento e controle de campos de petróleo / SCAE: an approach based on intelligent agents for management and control of oil fields / SCAE: uma abordagem baseada em agentes inteligentes para gerenciamento e controle de campos de petróleo / SCAE: an approach based on intelligent agents for management and control of oil fields
Several existing systems, whether in nature, whether in companies human exhibit the characteristic of being formed by individuals or subsystems that cooperate to carry out their tasks, and thus achieve a global goal. Examples these systems range from a society of bees to an organization financial, community animal to a manufacturing system, among many others
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011
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11. Self-Tuning Multimodal Piezoelectric Shunt Damping
Piezoelectric shunt damping is a well known structural vibration control technique that consists in connecting an electrical circuit to a piezoelectric transducer attached to the structure. In the case of a resonant shunt, the network consisting of an inductor-resistor network when combined with the capacitive nature of the piezoelectric transducer impedance
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-12
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12. Thymol and carvacrol: biotransformation and antifungal activity against the plant pathogenic fungi Colletotrichum acutatum and Botryodiplodia theobromae
Fungal growth in fruits may cause spoilage and result in a reduction of their quality and quantity. The aim of the current study was to investigate the antifungal activity and the metabolism of thymol and carvacrol by Colletotrichum acutatum and Botryodiplodia theobromae. The results showed that both compounds provided relatively good control against these p
Tropical Plant Pathology. Publicado em: 2011-02