Theory Of System Dynamics
Mostrando 1-12 de 102 artigos, teses e dissertações.
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1. System dynamics for social good
Abstract Paper aims This paper portrays three examples of system dynamics modes applied to social good. Originality System dynamics has a strong tradition of applied research addressing complex social issues ranging from world and urban dynamics to the spread of infectious diseases. System dynamics can provide insight and inform long-term policy in complex
Prod.. Publicado em: 15/08/2019
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2. Sobre a saúde de quem trabalha em saúde: revendo afinidades entre a psicodinâmica do trabalho e a saúde coletiva
RESUMO O trabalho em saúde está atravessado pela intensa dinâmica entre intenções e gestos, no seio da qual a construção do Sistema Único de Saúde agudiza questões relativas ao uso da força de trabalho e seu desgaste, ensejando o debate e a reflexão sobre a saúde de quem cuida da saúde. À guisa de ensaio sobre essa questão, este estudo envere
Saúde debate. Publicado em: 06/05/2019
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3. A reprodução educacional renovada: dualidade intrainstitucional no programa Universidade Aberta do Brasil
Resumo Neste artigo, analisamos o programa Universidade Aberta do Brasil (UAB) que visa à democratização do sistema educacional brasileiro através da modalidade a distância e sua institucionalização na Universidade de Brasília (UnB). Questiona-se a pretensão democratizante do programa a partir das teses contemporâneas que versam a respeito da renov
Educ. Pesqui.. Publicado em: 21/01/2019
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4. Towards the Brazilian Space Program Modeling Through the Combination of Stakeholder Theory and System Dynamics Methodology
Abstract: In the last 50 years, Stakeholder (STH) theory has become one of the main instruments of analysis, identification, classification and management of entities in the complex and conflicting corporate environment. In a similar way, System Dynamics (SD) methodology has been used as an instrument for modeling and simulating the dynamics of complex syste
J. Aerosp. Technol. Manag.. Publicado em: 08/11/2018
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5. Analysis of the Dynamic Behavior of a Rotating Composite Hollow Shaft
Abstract In the present paper, a simplified homogenized beam theory is used in the context of a numerical investigation regarding the dynamic behavior of a rotating composite hollow shaft. For this aim, a horizontal flexible composite shaft and a rigid disc form the considered simple supported rotating system. The mathematical model of the rotor is derived f
Lat. Am. j. solids struct.. Publicado em: 2017-01
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6. Incerteza e não ergodicidade: crítica aos neoclássicos
The starting point of this essay is to show that, in our view, the problem of the traditional economics is not in the deductive method nor the mathematical methods used, but to attribute to economic agents "power" on the future and prescribe the existence of ergodic stochastic processes in their economic analyzes. Thus, building a theory on the ground whose
Brazil. J. Polit. Econ.. Publicado em: 2014-06
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7. Estado, bloco no poder e acumulação capitalista: uma abordagem teórica
State, power block and capitalist accumulation: a theoretical approach. This article aims to elaborate a theory, based on Poulantzas, about the role of the State in a capitalist economy through a relational perspective that perceives the State as a field and a strategic process for the disputes of class fractions within the power bloc. In order to do so, it
Brazil. J. Polit. Econ.. Publicado em: 2014-03
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8. As limitações aos direitos fundamentais: os limites dos limites como instrumento de proteção a estes direitos
The promulgation of the Constitution of 1988 inserted Brazil into the Democratic Rule-of- Law State paradigm. Thenceforth, fundamental rights play an important role in the legal structure as central norms in the constitutional system. Due to this new function, a closer study of this subject is required not only by scholars but also by decision makers respons
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/08/2012
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9. Active vibration control of a piezoelectric beam using PID controller: Experimental study
Vibration suppression of smart beams using the piezoelectric patch structure is presented in the present work. The smart system consists of a beam as the host structure and piezoceramic patches as the actuation and sensing elements. An experimental set-up has been developed to obtain the active vibration suppression of smart beam. The set-up consists of a sm
Lat. Am. j. solids struct.. Publicado em: 2012-12
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10. Application of H∞ theory to a 6 DOF flight simulator motion base
The purpose of this study is to apply inverse dynamics control for a six degree of freedom flight simulator motion system. Imperfect compensation of the inverse dynamic control is intentionally introduced in order to simplify the implementation of this approach. The control strategy is applied in the outer loop of the inverse dynamic control to counteract th
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-06
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11. Attitude Control of a Satellite by Using Digital Signal Processing
Abstract: This article has discussed the development of a three-axis attitude digital controller for an artificial satellite using a digital signal processor. The main motivation of this study is the attitude control system of the satellite Multi-Mission Platform, developed by the Brazilian National Institute for Space Research for application in different s
J. Aerosp. Technol. Manag.. Publicado em: 2012-03
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12. Dynamics of rotating non-linear thin-walled composite beams: analysis of modeling uncertainties
In this article a non-linear model for dynamic analysis of rotating thin-walled composite beams is introduced. The theory is deduced in the context of classic variational principles and the finite element method is employed to discretize and furnish a numerical approximation to the motion equations. The model considers shear flexibility as well as non-linear
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012