Computer Simulation Packages
Mostrando 1-6 de 6 artigos, teses e dissertações.
-
1. Evaluation of a proposed optimization method for discrete-event simulation models
Optimization methods combined with computer-based simulation have been utilized in a wide range of manufacturing applications. However, in terms of current technology, these methods exhibit low performance levels which are only able to manipulate a single decision variable at a time. Thus, the objective of this article is to evaluate a proposed optimization
Pesqui. Oper.. Publicado em: 30/11/2012
-
2. Análise e comparação entre a resposta teórica e a resposta de um software no posicionamento de um cilindro através de uma válvula proporcional / Analysis and comparison between the theoretical response and the response from a software in the positioning of a cylinder through a proportional valve
Este trabalho aborda o estudo do grau de fidelidade de um pacote de simulação de sistemas automatizados (Automation Studio), em comparação com as previsões teóricas correspondentes, quando solicitado a simular o comportamento de um sistema de teste, composto de um servoposicionador hidráulico acoplado a uma carga. O modelo matemático do sistema de te
Publicado em: 2011
-
3. Modelagem computacional de tomografia com feixe de prótons / Computational modeling of protons tomography
In the present work a preliminary research via computer simulations was made in order to elaborate a prior program for the first experimental pCT setup in Brazil. Proton therapy is a high precise form of a cancer treatment. Treatment planning nowadays is performed basing on X ray Computer Tomography data (CT), alternatively the same procedure could be perfor
Publicado em: 2009
-
4. Analise do desempenho termodinamico e ambiental de um ciclo de refrigeração e proposta de uma função global de avaliação / Thermodynamic and enviromental analisys of a refrigerator cycle performance and propose of a global function evaluation
This work presents a proposal function to vapor compression refrigerator cycle performance from environmental and thermodynamic point of view. The function was developed through the statistic analysis of a refrigerator cycle computational results. The proposal function represents an evaluation indice of efficiency and environment criterions and was developed
Publicado em: 2009
-
5. Three-dimensional flow calculations of axial compressors and turbines using CFD techniques.
With the advent of powerful computer hardware, Computational Fluid Dynamics (CFD) has been vastly used by researches and scientists to investigate flow behavior and its properties. The cost of CFD simulation is very small compared to the experimental arsenal as test facilities and wind-tunnels. In the last years many CFD commercial packages were developed an
Publicado em: 2009
-
6. Effects of stent sizing on endothelial and vessel wall stress: potential mechanisms for in-stent restenosis
Stent sizing and apposition have been shown to be important determinants of clinical outcome. This study evaluates the mechanical effects of undersizing and oversizing of stents on endothelial wall shear stress (WSS) and vessel wall stress to determine a possible biomechanical mechanism of in-stent restenosis and thrombosis. Three-dimensional computational m
American Physiological Society.