Stability Guarantee
Mostrando 13-24 de 64 artigos, teses e dissertações.
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13. Synthesis of Controllers for Continuous-Time Delay Systems with Saturating Controls via LMI's
The stabilization of linear continuous-time systems with time delay in the state and subject to saturating controls is addressed. Sufficient conditions obtained via a linear matrix inequality (LMI) formulation are stated to guarantee both the local stabilization and the satisfaction of some performance requirements. The method of synthesis consists in determ
Publicado em: 2011
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14. Interpretação e aplicação do direito tributário: fundamentos jurídicos da decisão
The main purpose of the present term paper is to provide a framework for a theory of the legally valid tax decision that assures the unity and consistency of the national tax system, based upon an analysis of interpretation, application and implementation of Tax Law. Positive law is understood to be a set of legal norms that exist within an historical contex
Publicado em: 2010
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15. DEVELOPMENT AND CERTIFICATION BY THE PRIMARY METHOD OF REFERENCE MATERIAL OF CONDUCTIVITY PRIMARY / DESENVOLVIMENTO E CERTIFICAÇÃO POR MÉTODO PRIMÁRIO DE MATERIAL DE REFERÊNCIA DE CONDUTIVIDADE PRIMÁRIA
Certified Reference Material (CRM) is a reference material, accompanied by documentation issued by an authoritative body and providing one or more specified property values with associated uncertainties and traceabilities, using valid procedures. The CRM are used for control and quality assurances of analytical results also are essential to calibrate instrum
Publicado em: 2010
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16. Controle preditivo não linear baseado no modelo de Hammerstein com prova de estabilidade
The Predictive Controller has been receiving plenty attention in the last decades, because the need to understand, to analyze, to predict and to control real systems has been quickly growing with the technological and industrial progress. The objective of this thesis is to present a contribution for the development and implementation of Nonlinear Predictive
Publicado em: 2009
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17. Control of dynamic systems : absolute stability, saturation and bilinearity / Controle de sistemas dinamicos : estabilidade absoluta, saturação e bilinearidade
This thesis presents contributions to the solution of the problems of stability analysis and synthesis of state feedback controllers for dynamic systems with non-linear elements, by means of conditions based on linear matrix inequalities and Lyapunov functions. For switched systems subject to saturation in the actuators, convex conditions to design switched
Publicado em: 2009
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18. Estabilidade e controle com criterio de custo medio a longo prazo em sistemas lineares estocasticos / Stability and control of linear stochastic systems with long-run average cost criterion
This monograph presents results on stability and control of stochastic systems represented by linear operators with respect to the state which are non-linear with respect to the control. The control seeks to optimize a long run average cost (LRAC). The control structure does not depend on the past history of the process and it can be used, in particular, to
Publicado em: 2009
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19. ANÁLISE E CONTROLE DE GERADOR SÍNCRONO A ÍMÃ PERMANENTE APLICADO A SISTEMA DE CONVERSÃO DE ENERGIA EÓLICA / ANALYSIS AND CONTROL OF PERMANENT MAGNET SYNCHRONOUS GENERATOR APPLIED TO WIND ENERGY CONVERSION SYSTEM
This dissertation addresses the analysis and control of permanent magnet synchronous generators (PMSG) found in wind energy conversion system. The operation modes of the wind turbine the current and voltage constraints of a PWM rectifier are defined and a methodology to determine the generator current is presented. The generator currents obtained guarantee t
Publicado em: 2009
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20. Estabilidade no emprego : possível, urgente, revolucionária / Stability in the job: possible, urgent, revolutionary / Stabilité dans l'emploi: possible, urgente, revolutionnaire
A presente monografia nasce da necessidade de se reverter a lógica hoje instaurada nas relações de trabalho, considerando que a estabilidade no emprego é um instituto capaz de trazer mais dignidade aos trabalhadores. Foi elaborado um breve histórico da estabilidade no Brasil. Todo o trabalho foi elaborado com a consulta de doutrina especializada, jurisp
Publicado em: 2009
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21. A NOVA DINÂMICA DO CAPITAL E OS REFLEXOS SISTÊMICOS DA DESREGULAMENTAÇÃO JURÍDICA DOS MERCADOS FINANCEIROS
The new paradigm of the capitalism and the new configuration of production relations resize the economic phenomenum. Capital, society and work are currently considered reality transformers, restoring the ties and dictating rules and lifestyles. The new market and the dynamic imposed, brought with it the necessity of regulation and creation of instruments and
Publicado em: 2009
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22. A contribution for studing of robust control / Uma contribuição ao estudo de controladores robustos
The model based predictive controller (MPC) has been successfully applied in industry, with particular emphasis on the petrochemical industry. The basic feature of MPC algorithms is based on the formulation of an optimization problem, for calculating the sequence of control moves that minimize a performance function in a time horizon with the best informatio
Publicado em: 2009
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23. Determinantes de longo prazo do produto e da produtividade total dos fatores da agropecuária brasileira: 1974-2005 / Product and total factor productivity determinants of Brazilian agriculture, in the long run: 1974-2005
The agricultural sector is one of the most important in the Brazilian economy. In addition to the dynamism responsible for important chain effects on other sectors activities, it also contributes to obtain expressive positive credit balances in the recently verified commercial balance, and consequently to generate foreign exchange credits, essential for main
Publicado em: 2009
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24. Avaliação da regeneração óssea, sob a influência do laser de baixa intensidade, na região da sutura palatina de ratos após expansão da maxila / Evaluation of osseous regeneration, using the low-power laserterapy in the midpalatal suture in rats after maxillary expansion
Rapid maxillary expansion is one of the therapy used in the practice orthodontic to the posterior crossbite correction. Relapsed after expansion treatment required a contention device to guarantee a success therapy. The neoformation suture and the maxilla have maintained in the new position for a period to get the stability. To accelerate the osseous regener
Publicado em: 2008