Mathematic Optimization
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Development of mathematic models involving nutritional levels, performance and carcass yield to optimize economic results of broilers chickens / Desenvolvimento de modelos matemáticos envolvendo níveis nutricionais, desempenho e rendimento de carcaça para otimização de resultados econômicos de frangos de corte
Foram elaborados modelos de superfície de resposta, a partir de dados da literatura localizados através da técnica de revisão sistemática, para predizer o ganho de peso, consumo de ração e conversão alimentar de frangos de corte em função da energia metabolizável da ração, temperatura ambiente, idade de abate e sexo dos animais. Com as equaçõe
Publicado em: 2010
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2. Técnica de otimização multiobjetivo aplicada ao projeto preliminar de navios petroleiros. / Multi-objective optimization technique applied to preliminary design of a tanker.
Este trabalho apresenta um processo racional para a seleção das dimensões e coeficientes de forma ótimos para um navio petroleiro usando a técnica dos algoritmos genéticos. É proposto um procedimento para balanceamento em função do peso e espaço disponível de carga, determinando sua viabilidade e permitindo balancear navios de peso ou de volume. A
Publicado em: 2008
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3. Caracterização e modelagem matemática da fração recristalizada de ferrita no aço inoxidável ferrítico AISI 430 durante o processo de deformação a quente em laminador Steckel
This work deals with the characterization and mathematical modeling of the ferritic recrystallised fraction in AISI 430 ferritic stainless steel during the hot deformation in a Steckel mill process. A characterization of the thermo mechanical cycle of AISI 430 industrial process from reheating of the plate to annealed coil in box has been presented. A mathem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/12/2007
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4. Otimização de fluxo em redes na gestão financeira do caixa: aplicação em uma empresa do setor agroindustrial / CASH FLOW MANAGEMENT OPTIMIZATION WITH NETWORK FLOW: APLICATION TO THE AGRO-INDUSTRY / Otimização de fluxo em redes na gestão financeira do caixa: aplicação em uma empresa do setor agroindustrial / CASH FLOW MANAGEMENT OPTIMIZATION WITH NETWORK FLOW: APLICATION TO THE AGRO-INDUSTRY
Cash flow management is a financial problem that involves the efficient management of cash, short-term investments and short-term loans. In this study, we formulate the cash flow problem encountered in a typical agro-industrial company as a network optimization problem. Two examples using a linear programming model were studied: in the first example, the ori
Publicado em: 2007
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5. Phisical distribution networks optimization considering fiscal benefits based on presumed credit of ICMS. / Otimização de redes de distribuição física considerando incentivo fiscal baseado no crédito presumido de ICMS.
This research evaluates the influence of some specific fiscal benefits related to current states sale taxes for internal and interstate operations over distribution center location decisions. The objective is to develop a mathematic model that determines a distribution network with lower cost considering fiscal benefits based on presumed credit, which is cal
Publicado em: 2007
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6. Sistemas multiagentes para controle inteligente da caldeira de recuperação. / Multi-agent systems for the intelligent control of a recovery boiler.
Engineers have been introducing better support for procedures of monitoring complex conditions through the application of intelligent decentralized systems, implementing a variety of artificial intelligent techniques. Nowadays it is vastly known that these problems that are consequence of the functional complexity of monitoring conditioning can be solved tro
Publicado em: 2007
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7. Otimização de seções transversais de concreto armado: aplicação a pórticos planos / Reinforced concrete cross-section cost optimization: a plane frame application
A computational routine developed to optimize the first draft design of reinforced concrete buildings, approximated by plane frames. The commercial softwares used by the engineering offices for structural design is usually based in a first draft design, being this essential stage still accomplished by the engineer´s experience and intuition, using attempt a
Publicado em: 2006
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8. Otimização no corte de tubos estruturais: aplicação na indústria aeronáutica agrícola.
The Cutting Stock Problem consists of determining the best form to cut units of material (objects in supply), producing a set of lesser units (demanded item), with specific dimensions, that are ordered through an order wallet. To minimize the loss of material this study described a method of evaluation and optimization of the process planning of the cu
Publicado em: 2006
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9. Câmbio e integração regional: flutuação conjunta e otimização dinâmica para o mercosul
The commercial and economic integration between Brazil and Argentina has been frequently put under risk and uncertainty, so in MERCOSUR, essentially manifested in the tariff compensation. Accounting this concern, one can investigate the importance of exchange in the integration process, the possibility of establishing an harmonic exchange management and its
Publicado em: 2006
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10. Modeling of a vehicle suspension with non linear elements and performance comparison to a semi-active model / Modelagem de uma suspensão veicular com elementos não lineares e comparação de seu desempenho com um modelo semi-ativo
This work describes the analysis and comparison of a vehicle suspension semi-active controlled to a non linear passive system. The mathematic model of a suspension system, detailed in this work, has seven degrees of freedom in order to represent a full vehicle system. The two semi-active control laws used in this work are based on the skyhook theory. In the
Publicado em: 2005
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11. Simulação, modelagem e analise de reator de polimerização de eteno em solução usando catalisador Ziegler-Natta / Simulation, modeling and analysis of ethylene polymerization reactor in solution using Ziegler-Natta catalyst
Polymerization processes are, generally, very complexes due to the high number of parallel reactions and chemical species in reactional medium. Besides, the polymerization reaction engineering may not only attain yield and purity specifications, but also obtain products with certain processability characteristic and final properties that are, in practice, th
Publicado em: 2005
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12. Efeito da temperatura na cinetica de morte celular e em fermentação alcoolica continua com reciclo de celulas
The aims of this work were to study the temperature and ethanol concentration effect on the kinetics parameters ofthe cell growth and death, as well as the glucose consumption and the ethanol production by Sacchraromyces cerevisiae. Also the behavior of a pilot bioreactor with cell recycle, using industrial feed was evaluate. The constant searching for produ
Publicado em: 1996