Network Flow Simulation Models
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Analysis of the long-term effects of groundwater extraction on the water balance in part of the Urucuia Aquifer System in Bahia - Brazil
Resumo Em regiões agrícolas onde há insuficiência de chuva para o cultivo, entender a dinâmica das águas, superficiais e subterrâneas, é fundamental para avaliar o impacto do crescente bombeio de poços sobre o balanço hídrico. O Oeste do estado da Bahia-Brasil, maior área de agronegócio do estado, experimenta uma progressiva ocupação a partir
Rev. Ambient. Água. Publicado em: 28/11/2019
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2. DECISION WITH ARTIFICIAL NEURAL NETWORKS IN DISCRETE EVENT SIMULATION MODELS ON A TRAFFIC SYSTEM
ABSTRACT This work aims to demonstrate the use of a mechanism to be applied in the development of the discrete-event simulation models that perform decision operations through the implementation of an artificial neural network. Actions that involve complex operations performed by a human agent in a process, for example, are often modeled in simplified form w
Pesqui. Oper.. Publicado em: 2016-04
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3. A characterization for the constitutive relationships of 42CrMo high strength steel by Artificial Neural Network and its application in isothermal deformation
In hot working process, the prediction of material constitutive relationship can improve the optimization design process. Recently, the artificial neural network models are considered as a powerful tool to describe the elevated temperature deformation behavior of materials. Based on the experimental data from the isothermal compressions of 42CrMo high streng
Mat. Res.. Publicado em: 05/08/2014
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4. Utilização da metaheurística do recozimento simulado na otimização do planejamento de sistemas regionais de tratamento de efluentes e sua expansão da capacidade. / Simulated annealing for the optimal planning of regional effluent systems.
This study is concerned with the use of the metaheuristic Simulated Annealing for the optimal planning of regional effluent systems and its capacity expansion. The first model deals with the spatial optimization of the system: given a network where some nodes represent effluent sources and other nodes represent the location of possible sewage treatment plant
Publicado em: 2009
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5. ALGORITMOS HEURÍSTICOS DE OTIMIZAÇÃO DA PROTEÇÃO E MANOBRA EM REDES DE DISTRIBUIÇÃO DE ENERGIA / RELIABILITY HEURISTIC ALGORITHMS FOR PROTECTION AND MANEUVERING DEVICES DISTRIBUTION NETWORKS
The new regulations of the electricity sector have requested from the power utilities great performance efficiency on their distribution systems, requiring more rigorous quality and continuity energy levels. In Brazil, the privatization of the power utility companies has been allowing the adoption of new planning and operation policies, that necessarily cons
Publicado em: 2008
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6. Automatic Calibration of Pipe Roughness in Water Distribution Systems by using Genetic Algorithms / Calibração Automática de Rugosidades de Tubulações em Sistemas de Distribuição de Água com Aplicação de Algoritmos Genéticos
Simulation of hydraulic equilibrium conditions on distribution network is fundamental to technically analyze water supply systems. In order to reproduce reliable results on fluids flow by using simulation models it is very important that the system parameters are precisely evaluated. Considering the resistance coefficient of pipes as the most difficult varia
Publicado em: 2006
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7. A WATERSHED INFORMATION SYSTEM (WIS) FOR WATER QUALITY ANALYSES
Assessments of water quality in surface water bodies are increasingly incorporating both point and non-point pollutant sources. Water quality constituents are transported in the water as well as on the sediments. Predictions of constituent concentrations in the water and on the sediments require simulation models of water and sediment transport processes ove
Publicado em: 2005
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8. Common information Model/eXtensible Markup Language (CIM/XML) to exchange data among Power Utilities Control Centers. / Common Information Model/eXtensible Markup Language (CIM/XML) na troca de informações entre centros de controle de energia elétrica.
This dissertation provides an analysis about the application of a data model based on IEC 61970 (CIM) standard a tool for exchanging operational and equipments information among different Electrical Power Utilities computing systems. The purpose of this standard is to create a mechanism for information exchange using XML, called CIM/XML a format specif
Publicado em: 2005
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9. Alocação de banda passante em redes auto-ajustaveis / Bandwidth allocation in self-sizing networks
Nesta dissertação, apresenta-se o framework de Redes Auto-Ajustáveis, como sendo um conjunto de técnicas capazes de prover Qualidade de Serviço (QoS), em redes multiserviço de alta velocidade. A implantação deste framework permitirá a introdução de novas aplicações multimídia com Qualidade de Serviço, nas redes backbone existentes. Para se gar
Publicado em: 2005
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10. Sistema de suporte a decisão para alocação de água em projetos de irrigação. / Decision support system for water allocation in irrigation projects.
In this work, an adaptation in the ModSimLS surface reservoir has been made in order to make it work as a soil reservoir. The model is called IrrigaLS. When compared to the water balance method, it was ascertained that IrrigaLS is suitable for determining supplementary and/or total irrigation demands. The model adaptation considers agricultural production as
Publicado em: 2003
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11. Aplicação das tecnicas de redes neurais e de analise de componentes principais na modelagem de uma lagoa aerada da RIPASA S/A
In recent years, computer-based methods have been applied to many areas of environmental chemistry. In the process industry the use of modern control strategies is required due to increasing demands on the quality of its effluent treatment systems. In this work a wastewater treatment system of a pulp and paper industry has been studied using Artificial Neura
Publicado em: 2000
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12. Modelagem chuva-vazão em bacias hidrograficas com suporte em redes neurais artificiais
This work describes the use of two hydrological simulation deterministic models to represent the rainfuJI-runnoff processo The Itapetiniga, Almas and Guarapiranga rivers basin, located in the State of São Paulo and the Guaporé river basin located in the State of Mato Grasso, are taken as a case study. Both deterministic models used parameters optimization,
Publicado em: 1999