Discret Time
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Simulation model of discret events applied to the planning and operation of a toll plaza
AbstractThis work investigates the congestion and traffic flow in a tool plaza, and proposes a methodology for the classification of highway flows and its service levels based on a combination of the Highway Capacity Manual – HCM and Discrete Events Simulation fundaments. The proposed mesoscopic simulation is used to analyze service levels of different phy
J. Transp. Lit.. Publicado em: 2016-09
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2. Estratégias de aplicações sequenciais e paralelas da metaheurística otimização por enxame de partículas ao problema do caixeiro viajante
Particle Swarm Optimization is a metaheuristic that arose in order to simulate the behavior of a number of birds in flight, with its random movement locally, but globally determined. This technique has been widely used to address non-liner continuous problems and yet little explored in discrete problems. This paper presents the operation of this metaheuristi
Publicado em: 2008
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3. Reduction of structural vibration induced by solar array drive mechanisms using input shaping control techniques / Redução de vibrações estruturais induzidas pelo mecanismo de acionamento da asa de painéis solares, usando a técnica de formatação do sinal de entrada
The input shaping technique was employed in this work to reduce the vibration effect at a flexible beam, caused by a step motor actuator. The technique is based on the cancellation of poles of the system by allocating zeros on or near poles. The switching sequence of the step motor was designed in a strategic way so that the vibration produced by the train o
Publicado em: 2008
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4. Redução de vibrações estruturais induzidas pelo mecanismo de acionamento da asa de painéis solares, usando a técnica de formatação do sinal de entrada / Reduction of structural vibration induced by solar array drive mechanisms using input shaping control techniques
A técnica de formatação do sinal de entrada foi empregada nesse trabalho para minimizar os efeitos vibratórios sobre uma viga flexível, causados por um atuador tipo motor de passo. A técnica é baseada no cancelamento de pólos do sistema, alocando-se zeros sobre ou próximos aos pólos. A seqüência de acionamento do motor de passo foi projetada de f
Publicado em: 2008
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5. A Fuzzy classifier model for the production sequencing. / Um método de análise de cenários para sequenciamento da produção usando lógica nebulosa.
Production planning in automated manufacturing environments is a complex task which comprehends, among other activities, the production sequencing. One of the techniques used to determine the best production sequencing is the simulation. All possible sequences can be simulated and, right after that, the sequences with the best performance are verified, accor
Publicado em: 2005
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6. Interferencia logica externa em problemas de programação de produção de sistemas flexiveis
The chemical batch facilities are essentially multiproduct or multipurpose. Consequentelly, the definition of a production plan and scheduling has to take into account many different aspects in order to satisty relevant problem constraints as shared resources, production routes etc. The planning and scheduling problems are NP-complete problems. When capacite
Publicado em: 1998
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7. Influencia da betametasona, empregada na forma de preparações farmaceuticas distintas, sobre alguns valores de auto-hemostasia, em ratos
The aim of this paper was to study the effeets of two distinet pharmaceutieal preparations of betamethasone, values of auto-hemostasis. To do so, 30 male Wistar rats were used, divided in 3 upon the experimental groups, dissodium phosphate betametasone acetate. Treated with normal saline, betametasone or with this salt associated with After 1, 24, 48 and 168
Publicado em: 1992