Milp
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Medical centers location and specialists’ allocation: a healthcare planning case study
Abstract Paper aims To set the locations of new medical centers to meet the population’s secondary care needs, the additional number of specialists, equipment, and an installation sequence at municipalities. Originality We developed descriptive cost functions models and adopted aggregate data from official sources to set parameters of an integrated MILP
Prod.. Publicado em: 02/12/2019
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2. The electric boat charging problem
Abstract Paper aims This paper studies a new optimization problem called the Electric Boat Charging Problem (EBCP), which is based on the application of electric mobility in a river transport operation problem. Originality This work pioneers the studies of the electric mobility on the river operations, by proposing the EBCP. This problem includes real feat
Prod.. Publicado em: 23/09/2019
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3. Computational Model for Microgeneration Simulation, From Solar and Wind Renewable Sources, With Optimal Allocation of Loads, Electric Vehicle and Energy Storage, In a Residential Electrical Micro Network
Abstract The electrical sector is under constant evolution. One of the areas refers to the consumers that come to be generators, implementing distributed generation, interconnected to a smart grid. This article discusses the improvement of an algorithm, already presented in the literature, to make the best temporal allocation of loads, electric vehicle, stor
Braz. arch. biol. technol.. Publicado em: 29/10/2018
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4. 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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5. Heat integration of an Olefins Plant: Pinch Analysis and mathematical optimization working together
This work explores a two-step, complexity reducing methodology, to analyze heat integration opportunities of an existing Olefins Plant, identify and quantify reduction of energy consumption, and propose changes of the existing heat exchanger network to achieve these goals. Besides the analysis of plant design conditions, multiple operational scenarios were c
Brazilian Journal of Chemical Engineering. Publicado em: 2011-03
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6. Síntese simultânea de redes de trocadores de calor com considerações operacionais : flexibilidade e controlabilidade
Neste trabalho foi desenvolvido um procedimento computacional para síntese de redes de trocadores de calor que sejam flexíveis (capazes de operar sujeito a incerteza) e controláveis. A síntese foi baseada em uma superestrutura proposta na literatura que tem como objetivo minimizar simultaneamente o custo operacional e de investimento do projeto. Consider
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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7. Um modelo híbrido (CLP-MILP) para scheduling de operações em polidutos
A eficácia na transferência de derivados de petróleo através de dutos motiva a execução deste trabalho. O objetivo principal é a modelagem do scheduling de um poliduto, isto é, um sistema de dutos que transporta diferentes derivados de petróleo. O poliduto em estudo com 93,5 km de extensão conecta uma refinaria a um terminal portuário. Foi desenvo
Pesquisa Operacional. Publicado em: 2008-12
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8. Metodologia para evolução topológica de redes ópticas de transmissão - implantação da tecnologia ason
Redes de transmissão ópticas, de última geração, como a ASON Automatic Switched Optical Network, proporcionam facilidades de operação, robustez às redes e novos desafios para os projetistas. Projetar redes ópticas de transmissão de dados, capazes de suportar múltiplas falhas com o menor custo possível e utilizando métodos de proteção aplicados
Publicado em: 2008
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9. Logistica de armazenamento de frutos e hortaliças em supermercado / Storage logistic of fruits and vegetables in suprmarket
O principal objetivo deste estudo é minimizar as grandes perdas de frutos e hortaliças que ocorrem durante seu armazenamento em supermercados, usando um modelo matemático para otimizar a distribuição dos produtos em depósito e minimizar os custos referentes ao seu armazenamento. Para tanto, foram utilizados dados da literatura do tempo de vida dos prod
Publicado em: 2008
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10. Optimization of pipeline scheduling operations: efficient formulations and hydraulic considerations. / Otimização da programação de operações dutoviárias: formulações eficientes e considerações hidraúlicas.
Pipeline systems correspond nowadays to the most efficient mode for the transportation of large amounts of liquid and vapor products for long distances. Pipelines are utilized by the Petroleum Industry to transport petroleum and its product derivatives. The present work addresses the scheduling of pipeline distribution of a system that operates with a pipeli
Publicado em: 2007
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11. Otimização de formulações de fluidos para freios do tipo ABNT 3 (DOT3). / Optimization of brake fluids formulations type ABNT 3 (DOT 3).
The aim of this work is to obtain optimal formulations of brake fluids ABNT 3 type while satisfying technical and market specifications, by utilizing modelling and optimization techniques of five physical and chemical properties. A methodology for the design of commercial products, based on the usage of the information available in databases where previous t
Publicado em: 2007
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12. A bilevel decomposition technique for the optimal planning of offshore platforms
There is a great incentive for developing systematic approaches that effectively identify strategies for planning oilfield complexes. This paper proposes an MILP that relies on a reformulation of the model developed by Tsarbopoulou (UCL M.S. Dissertation, London, 2000). Moreover, a bilevel decomposition technique is applied to the MILP. A master problem dete
Brazilian Journal of Chemical Engineering. Publicado em: 2006-03