Mathematical Modelling And Simulation
Mostrando 13-24 de 45 artigos, teses e dissertações.
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13. Modelagem e simulação sistêmica de rios : avaliação dos impactos ambientais no Rio Mogi-Guaçu/SP / System-based modelling and simulation for rivers : assessment of environmental impacts of Mogi-Guaçu river/SP
System Models that include biochemical variables, which are indicative of river water quality, are tools with great potential to assist in watershed management enabling the development of scenarios and previewing possible impacts in rivers. Therefore it is possible to propose solutions and mitigating measures to solve different possible problems related to r
Publicado em: 2008
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14. Pollutant dispersal in an air-water system mathematical modeling numerical aproximation and computational simulations / Dispersão de poluentes num sistema ar-agua : modelagem matematica, aproximação numerica e simulação computacional
This work considers a three-dimensional air-water system pollution discharge problem, modelling it with a system of partial differential equations which includes both the diffusionadvection evolutionary and Stoke s equations. Appropriate boundary conditions are considered, including for the air-water interface, and special attention is dedicated to existence
Publicado em: 2008
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15. Uma Arquitetura de Software Interativo para Apoio à Decisão na Modelagem e Análise do Tráfego Urbano. / An Interactive Decision Support Software Architeture for Urban Traffic Moddeling and Analysis..
The present work proposes an architecture of a Decision Support System for modelling, simulating and visualizing urban traffic, using a mathematical model adjusted to the reality of the Brazilian transit, as well as an appropriate choice of data for this context. To prove the viability of the architecture, an interactive tool, called PET-Gyn, was implemented
Publicado em: 2008
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16. Modelagem estocástica de neurônios e sua interação em tempo real com neurônios biológicos / Stochastic neural modelling and interfacing neurons and models in real-time
We developed a mathematical model of the electrical activity of a motor neuron from the stomatogastric ganglion of crustaceans. It was inspired on a previous existing deterministic model which is considered as electrophysiologically plausible in the recent literature. However, this deterministic model were not able to reproduce the irregular bursting behavio
Publicado em: 2008
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17. Eutrophication of Cruzeta reservoir in the representative basin of the Seridó river - RN. Natal / Eutrofização do Reservatório Cruzeta na bacia representativa do rio Seridó RN
Eutrophication has been listed as one of the main problems of water pollution on a global level. In the Brazilian semi-arid areas this problem takes even greater proportions due to characteristical water scarcity of the region. It is extremely important to the predictive eutrophication models development and to the reservoirs management in the semi-arid regi
Publicado em: 2008
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18. Ecophysiological attributes of hybrid DKB-390 and sthocastic model for predicting grain productivity / Atributos ecofisiológicos do híbrido DKB-390 e modelo estocástico para previsão da produtividade de grãos
Maize is on of the world most important crops, given that the products generated from this cereal are largely used by sectors like starch industry, animal and human nutrition, as well as biomass energy production and refineries. For these reasons, there is frequently a huge interest in knowing the potential adoption of the main available genotypes in relatio
Publicado em: 2008
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19. Surface fire spread model based on lumped parameter approach / Modelo de propagação de fogo em incêndios de superfície baseado no método nodal
This work presents a new approach for a surface re spread model applicable to wildland re modelling. The mathematical method used in the modeling is the lumped parameter approach. In this method the thermal domain is divided in a nite number of volumes, supposed isothermal and with homogeneous properties, called nodes. To each node are attributed a temperatu
Publicado em: 2007
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20. Estimativa de consumo de energia de cÃdigo ANSI-C para sis- temas embarcados: uma abordagem baseada em simulaÃÃo estocÃstica
Embedded Systems are present in most daily activities with many different purposes. Generally, embedded systems have several design constraints, such as memory size, power source, CPU speed, and so on. Over the last years, power consumption has been receiving particular attention from scientific community since several embedded devices rely on battery as pow
Publicado em: 2007
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21. Separation of binary mixtures by pervaporation and reverse osmosis / Separação de misturas binarias por pervaporação e osmose inversa
In this work, the modelling and simulation of pervaporation and reverse osmosis processes for binary mixtures were carried out. The development of prediction methodologies for process variables of pervaporation and reverse osmosis without the necessity of experimental data was the general guideline followed; the experimental data used in these methodologies
Publicado em: 2007
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22. Modelagem e analise de reatores cataliticos de leito fixo / Modelling and analysis of fixed bed catalytic reactor
Em reações altamente exotérmicas, uma das principais características dos reatores catalíticos de leito fixo está relacionada ao surgimento do ponto quente ou hot-spot, sendo sua prevenção de fundamental importância para o bom desempenho do reator, uma vez que ele pode levar ao aumento excessivo da temperatura no leito catalítico, o que poderia resu
Publicado em: 2007
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23. Otimização de carga moedora utilizando ferramentas de modelamento matemático e simulação de moagem
This work aims at the use of grinding mathematical modelling tools and simulation for the assessment of different mill charges and for the optimization of the 5M5A mill at plant 5 Nibrasco CVRD. At first, a complete sampling procedure was performed at the industrial plant, operating with a cylpebs charge, for the material balance adjustment, which data were
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/01/2006
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24. Simulador de reatores anaeróbios com base no ADM1. / Anaerobic reactors simulator based on the ADM1.
First, this work intends to show the importance of research in modeling, simulation and control of wastewater treatment processes, and to point the delay of our country (Brazil) in this subject, compared to the advance of the international initiatives. This work presents the specific problem of modeling the anaerobic digestion and proposes a new tool to simu
Publicado em: 2006