Dynamic Programming Technique
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. An Improved Dynamic Contact Model for Mass–Spring and Finite Element Systems Based on Parametric Quadratic Programming Method
Abstract An improved dynamic contact model for mass-spring and finite element systems is proposed in this paper. The proposed model avoids the numerical troubles of spurious high-frequency oscillations for mass-spring and finite element systems in dynamic contact problems by using the parametric quadratic programming technique. The iterative process for det
Lat. Am. j. solids struct.. Publicado em: 26/04/2018
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2. Simulation and economic analysis of bovine sex selection
A simulation model implemented in the programming software Delphi XE® was applied to evaluate sex selection in bovine. The hypothesis under investigation was that a dynamic model with stochastic and deterministic elements could detect the sexed semen technique to minimize pregnancy cost and to determine the adequate number of recipients required for in vivo
R. Bras. Zootec.. Publicado em: 2013-05
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3. Analytical and Mathematical Modeling and Optimization of Fiber Metal Laminates (FMLs) subjected to low-velocity impact via combined response surface regression and zero-One programming
This paper presents analytical and mathematical modeling and optimization of the dynamic behavior of the fiber metal laminates (FMLs) subjected to low-velocity impact. The deflection to thickness (w/h) ratio has been identified through the governing equations of the plate that are solved using the first-order shear deformation theory as well as the Fourier s
Lat. Am. j. solids struct.. Publicado em: 2013-03
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4. Maximum thermodynamic efficiency problem in batch distillation
A dynamic batch distillation study of the non-ideal mixture Ethanol-Water is presented. The objective of the study was to calculate an average thermodynamic efficiency of the process under an optimal constant reflux policy and the objective function includes a given production time in order to obtain the desired product quality (measured as the average mole
Brazilian Journal of Chemical Engineering. Publicado em: 2011-06
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5. STOCHASTIC DYNAMIC PROGRAMMING AND CONVEX HULL ALGORITHM IN THE HYDROTHERMAL SYSTEMS OPERATION PLANNING / PROGRAMAÇÃO DINÂMICA ESTOCÁSTICA E ALGORITMO DE FECHOS CONVEXOS NO PLANEJAMENTO DA OPERAÇÃO DE SISTEMAS HIDROTÉRMICOS
This thesis presents a new approach for the expected-cost-to-go functions modeling used in the stochastic dynamic programming (SDP) algorithm. The proposed technique is applied to the long-term operation planning of electrical power systems. Using state space discretization, the convex hull algorithm is used for constructing a series of hyperplanes that comp
Publicado em: 2010
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6. Fuzzy inference systems approach for long term hydrothermal scheduling / Sistema de inferencia nebulosa ao planejamento da operação hidrotermica de medio prazo
The long term hydrothermal scheduling lies in the optimization of the water resource usage through the maximization of the hydroelectric production and the minimization of the thermal plants operation. Its goal is to assure an economic and reliable load supply throughout the study stages. This problem can be characterized by exhibiting a complex nature, sinc
Publicado em: 2009
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7. Algoritmos paralelos realísticos para a maior subsequência comum
Neste trabalho estudou-se o problema da Maior Subsequência Comum (Longest Common Subsequence - LCS) que deseja encontrar uma subsequência comum de comprimento máximo de duas sequências. O problema LCS pode ser resolvido em tempo sequencial quadrático usando a técnica de programação dinâmica. Este trabalho consiste em estudar os algoritmos paralelos
Publicado em: 2009
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8. AVALIAÇÃO DO IMPACTO ECONÔMICO DE UM PROJETO DE PESQUISA E DESENVOLVIMENTO NO VALOR DE UMA PLANTA GAS-TO-LIQUIDS: USANDO A TEORIA DAS OPÇÕES REAIS / EVALUATION OF THE ECONOMIC IMPACT IN THE VALUE OF A GAS-TO-LIQUIDS FACILITY CAUSED BY A RESEARCH AND DEVELEOPMENT TECNOLOGICAL PROJECT: USING THE THE REAL OPTIONS THEORY
When making decisions, the figure of the manager comes across different types of uncertainties. Among them, the time to conclude a project. The characteristics of innovation and novelty in Research and Development Projects applied to technology, further reinforces the caution to be taken regarding the time dimension at the moment of the decision, since the p
Publicado em: 2008
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9. EficientE a method of economical measurement of water supply networks. / EficientE Um método de dimensionamento econômico para redes de distribuição de água.
It was aimed in the present study to carry out a method of economical measurement of water supply system, composed by pipes network, including its propulsion system. This method is denominated here as EficientE, which was carried out on search of a minimal cost solution for threshed networks, with branches intended to amplify the existing networks. In order
Publicado em: 2007
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10. Seleção ótima de ativos multi-período com restrições intermediárias utilizando o critério de média-variância. / Multi-period mean-variance portfolio selection problem with intermediate constraints.
The subject of this thesis is the study of multi-period portfolio optimization problems. We focus on a model with intermediate constraints formulated as an optimal control problem and solved by using dynamic programming techniques. Both theoretical and practical issues are addressed. Firstly we will analyze the main hypothesis of portfolio optimization model
Publicado em: 2006
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11. Hydrothermal scheduling with storage guide-curves / Planejamento da operação energetica via curvas-guias de armazenamento
The Brazilian electric sector has been passing through successive reforms in the search for an institutional model that allows the optimization of the use of the energetic resources, concealed with the goal of achieving a sustaining development. The energetic planning plays a fundamental roll in this context, thus studies and researches designated to support
Publicado em: 2006
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12. Alocação de Tarefas Paralelas Comunicantes em Ambientes Distribuídos Heterogêneos
Distributed systems have been widely used in the resolution of problems that demand a large amount of processing time, because they allow the simultaneous utilization of many computational resources. Many machines with a distributed architecture have been proposed during the years. Among these are computer clusters, which are distributed systems composed of
Publicado em: 2006