Local Programming
Mostrando 1-12 de 97 artigos, teses e dissertações.
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1. Optimization in timetabling in schools using a mathematical model, local search and Iterated Local Search procedures
Resumo Este artigo aborda o problema de otimização na geração da grade horária escolar. Tal problema consiste em definir os dias e horários das disciplinas a serem ministradas por cada um dos professores de instituições de ensino. Para isto foi desenvolvida uma ferramenta que faz uso de técnicas de Pesquisa Operacional (PO), com foco na geração e
Gest. Prod.. Publicado em: 07/10/2019
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2. SEMIAUTOMATIC IRRIGATION MANAGEMENT IN TOMATO
ABSTRACT The use of new technologies to meet the demands of the agricultural market is increasing; however, technical information on application is scarce for some areas of knowledge, including irrigation management. The objective of this study is to evaluate an automatic irrigation system with capacitance sensors connected to a local wireless network for th
Eng. Agríc.. Publicado em: 09/09/2019
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3. MANNGA: A Robust Method for Gap Filling Meteorological Data
Resumo Este trabalho apresenta o método Mannga (Multiple variables with Artificial Neural Network and Genetic Algorithm), desenvolvido para preencher falhas em dados meteorológicos. A ideia principal é preencher as falhas baseando-se nos valores de outras variáveis meteorológicas medidas no mesmo momento, uma vez que as variáveis meteorológicas possue
Rev. bras. meteorol.. Publicado em: 05/08/2019
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4. Case-Based Reasoning for the Design of Start-Stop Logic of Hydroelectric Power Stations
ABSTRACT The present article focuses on the construction of an Intelligent System for the Project Start-Stop Logic of Hydropower Plants, work carried out as master dissertation, allowing the retention of knowledge of previous cases which set a valuable intellectual capital, organizing knowledge generated by specialists and consultants of the area. The tool a
Braz. arch. biol. technol.. Publicado em: 29/11/2018
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5. Identifying Mechanical Properties of Viscoelastic Materials in Time Domain Using the Fractional Zener Model
Abstract The present paper aims at presenting a methodology for characterizing viscoelastic materials in time domain, taking into account the fractional Zener constitutive model and the influence of temperature through Williams, Landel, and Ferry’s model. To that effect, a set of points obtained experimentally through uniaxial tensile tests with different
Lat. Am. j. solids struct.. Publicado em: 2017-01
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6. STABILIZED SEQUENTIAL QUADRATIC PROGRAMMING: A SURVEY
We review the motivation for, the current state-of-the-art in convergence results, and some open questions concerning the stabilized version of the sequential quadratic programming algorithm for constrained optimization. We also discuss the tools required for its local convergence analysis, globalization challenges, and extentions of the method to the more g
Pesqui. Oper.. Publicado em: 2014-12
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7. A Mixed-Integer convex formulation for production optimization of gas-lifted oil fields with routing and pressure constraints
Production optimization of gas-lifted oil fields under facility, routing, and pressure constraints has attracted the attention of researchers and practitioners for its scientific challenges and economic impact. The available methods fall into one of two categories: nonlinear or piecewise-linear approaches. The nonlinear methods optimize simulation models dir
Braz. J. Chem. Eng.. Publicado em: 2014-06
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8. An object-oriented class design for the generalized finite element method programming
The Generalized Finite Element Method (GFEM) is a numerical method based on the Finite Element Method (FEM), presenting as its main feature the possibility of improving the solution by means of local enrichment functions. In spite of its advantages, the method demands a complex data structure, which can be especially benefited by the Object-Oriented Programm
Lat. Am. j. solids struct.. Publicado em: 2013-11
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9. PAWEB - Uma plataforma para desenvolvimento de aplicativos web utilizando o modelo de atores / PAWEB - A platform for developing web applications using the actor model.
Existem várias linguagens e plataformas que permitem a programação baseada no modelo de atores, uma solução elegante para a programação concorrente proposta há algumas décadas. Segundo esse modelo, implementa-se o programa na forma de uma série de agentes que são executados em paralelo e se comunicam entre si somente por meio da troca de mensagens
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/10/2012
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10. O problema do corredor de comprimento mínimo : algoritmos exatos, aproximativos e heurísticos / The minimum length corridor problem : exact, approximative and heuristic algorithms
Esta dissertação tem como foco a investigação experimental de algoritmos exatos, aproximativos e heurísticos aplicados na resolução do chamado problema do corredor de comprimento mínimo (PCCM). No PCCM recebemos um polígono retilinear P e um conjunto de polígonos retilineares menores formando uma subdivisão S planar conexa de P. Uma solução para
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/05/2012
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11. Heuristic for solving capacitor allocation problems in electric energy radial distribution networks
The goal of the capacitor allocation problem in radial distribution networks is to minimize technical losses with consequential positive impacts on economic and environmental areas. The main objective is to define the size and location of the capacitors while considering load variations in a given horizon. The mathematical formulation for this planning probl
Pesquisa Operacional. Publicado em: 05/04/2012
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12. A sensitivity result for quadratic semidefinite programs with an application to a sequential quadratic semidefinite programming algorithm
In this short note a sensitivity result for quadratic semidefinite programming is presented under a weak form of second order sufficient condition. Based on this result, also the local convergence of a sequential quadratic semidefinite programming algorithm extends to this weak second order sufficient condition. Mathematical subject classification: 90C22, 90
Computational & Applied Mathematics. Publicado em: 2012