Dynamic Feedback
Mostrando 1-12 de 123 artigos, teses e dissertações.
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1. Desenvolvimento de software e interface para o controle por retroalimentação atrasada em sistemas eletroquímicos
In this paper, we show the development of a LabVIEW algorithm able to apply the delayed feedback control on oscillatory electrochemical reactions. The coupling of the control and the experiments was carried out by a real-time apparatus, measuring the faradaic current and, in sequence, applying a calculated circuit voltage as an analog output. The setup was u
Quím. Nova. Publicado em: 2021-06
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2. Professionalism in the Training of Medical Specialists: an Integrative Literature Review
RESUMO Introdução O constructo profissionalismo vem, cada vez mais, sendo reconhecido como importante componente da educação médica, sendo fundamental na atuação do médico na sociedade. Objetivo Reunir de forma sucinta e sistematizada as informações disponíveis nas produções científicas sobre o conceito de profissionalismo médico e sua apl
Rev. bras. educ. med.. Publicado em: 13/01/2020
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3. Adaptive Filtration of Parameters of the UAV Movement Based on the TDOA-Measurement Sensor Networks
ABSTRACT: In modern conditions unmanned aerial vehicles (UAVs) generate new classes of threats, including their use for terrorist purposes. A feature of modern UAVs is the ability to perform sudden maneuvers and to keep the same position in the point in space. For the description of the UAV movement with various types of maneuver it is used a rectangular coo
J. Aerosp. Technol. Manag.. Publicado em: 26/08/2019
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4. MULTIVARIABLE OPTIMAL CONTROL OF A HEAT EXCHANGER NETWORK WITH BYPASSES
Abstract Heat exchanger networks present an interesting control problem due to coupling among process streams. In this work, the linear quadratic regulator (LQR), a feedback optimal control technique, is used to control stream temperatures on a laboratory scale heat exchanger network, through bypass manipulation, in a multivariable system. The LQR design was
Braz. J. Chem. Eng.. Publicado em: 2016-03
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5. A Novel Integrated Guidance and Control System Design in Formation Flight
ABSTRACT: Bird's formation flight is one of the best types of cooperation in nature. The bird's flight was the motivation of humans for flying. After one century of flight development, bird's formation flight was the motivation of humans for aircraft's formation flight. The closeness of aircrafts in formation flight and the effect of disturbances such as vor
J. Aerosp. Technol. Manag.. Publicado em: 2015-12
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6. Dynamic analysis and vibration control of a multi-body system using MSC Adams
AbstractIn this paper, modelling and simulation of a multi-body system for its vibration control using sensors and actuators is presented. The model developed on MSC ADAMS consists of six legs connecting moving and base plates using spherical joints with axial rotation of legs constrained. It contains linear actuator collocated with force sensor. Mathematica
Lat. Am. j. solids struct.. Publicado em: 2015-08
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7. Multi-model MPC with output feedback
In this work, a new formulation is presented for the model predictive control (MPC) of a process system that is represented by a finite set of models, each one corresponding to a different operating point. The general case is considered of systems with stable and integrating outputs in closed-loop with output feedback. For this purpose, the controller is bas
Braz. J. Chem. Eng.. Publicado em: 2014-03
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8. Electromagnetic interference reduction by dynamic impedance balancing applied to biosensors
INTRODUCTION: Electromagnetic interference caused by electric power lines adversely affects the signals of electronic instruments, especially those with low amplitude levels. This type of interference is known as common-mode interference. There are many methods and architectures used to minimize the influence of this kind of interference on electronic instru
Rev. Bras. Eng. Bioméd.. Publicado em: 2013-09
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9. Static and dynamic postural control in low-vision and normal-vision adults
OBJECTIVE: This study aimed to evaluate the influence of reduced visual information on postural control by comparing low-vision and normal-vision adults in static and dynamic conditions. METHODS: Twenty-five low-vision subjects and twenty-five normal sighted adults were evaluated for static and dynamic balance using four protocols: 1) the Modified Clinica
Clinics. Publicado em: 2013-04
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10. Relação dinâmica entre a estrutura de propriedade e controle e o valor de mercado corporativo no Brasil: análise da primeira década do século XXI / Dynamic relationship between ownership and control structure and corporate market value in Brazil: Analysis of first decade of XXI century
The Brazilian model of corporate governance is characterized by the ownership and control concentration of most publicly traded companies. In this context, the academic literature points to the existence of a positive and a negative impacts of this shares accumulation by controller (s) on corporate performance, known respectively as incentive effect (or alig
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/04/2012
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11. The dynamic interaction enters the strategical management of people and the system of ambient management of a processing unit of natural gas. / A interação dinâmica entre a gestão estratégica de pessoas e o sistema de gestão ambiental de uma unidade processadora de gás natural.
Esta tese versa sobre a interação dinâmica entre a gestão estratégica de pessoas e sistema de gestão ambiental. Trata-se de uma pesquisa qualitativa, na modalidade estudo de caso único em profundidade. Para tanto, buscou-se investigar como as estratégias de gestão de pessoas interagem com os requisitos presentes no sistema de gestão ambiental adota
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2011
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12. Dynamic output feedback for discrete-time systems under amplitude and rate actuator constraints
This work proposes a technique for the design of stabilizing dynamic output feedback controllers for discrete-time linear systems with rate and amplitude saturating actuators. The nonlinear effects introduced by the saturations in the closed-loop system are taken into account by using a generalized sector condition, which leads to theoretical conditions for
Publicado em: 2011