Discrete Simulation Modeling
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. A DISCRETE STOCHASTIC MODEL TO DETERMINE FOOD QUALITY BY USING SIMULATION: A STRAWBERRY CASE STUDY
ABSTRACT The agri-food supply chain (AFSC) sets a series of challenges in the production, storage, distribution, and transportation processes, as the market's requirements for fresh food combine food quality and safety attributes. This research suggests a discrete event modeling to study the behavior of food quality in all supply chains (SCs) in terms of tem
Eng. Agríc.. Publicado em: 2020-12
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2. FEM-DEM simulation of Uniaxial Compressive Strength (UCS) laboratory tests
Abstract Finite/discrete element methods (FDEM) are hybrid numerical models that use algorithms to analyze the transition from continuous to discontinuous. This type of formulation allows modeling physical laboratory tests with greater proximity to reality. This article proposes to simulate the average behavior of a uniaxial compression test campaign. The te
REM, Int. Eng. J.. Publicado em: 2020-12
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3. URBAN SOLID WASTE MANAGEMENT BY PROCESS MAPPING AND SIMULATION
Adequate management of urban solid waste (USW) is beneficial to the environment, cities and people who depend on the income generated from collecting this waste material to survive. Due to the level of complexity of these processes involved in recyclable USW sorting, management tools which enable systemic studies become valuable assets by evaluating the effe
Pesqui. Oper.. Publicado em: 2015-04
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4. Daily counting of manufactured units sent for quality control: a bayesian approach
This paper presents the statistical modeling for daily counting statistics of units that arrive for quality inspection at a food company. Different Poisson regression models were considered in order to analyze the data collected, with a Bayesian focus. The main objective was to forecast the daily average count based on co-variables such as days of the week.
Pesqui. Oper.. Publicado em: 16/07/2013
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5. Proposta de um procedimento para a modelagem de sistemas de controle de edifícios inteligentes utilizando a rede de Petri colorida. / A procedure for modelling the control system in intelligent buildings based on colored Petri nets.
Technological advances in recent decades have motivated the development of intelligent buildings, aimed at creating environments more productive for the occupants, economically advantageous for the owners and environmentally correct. New ways of interaction between users and the buildings systems are emerging from these kinds of systems, which are not adequa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2011
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6. Modeling of statistical low-frequency noise of deep-submicrometer MOSFETs
The low—frequency noise (LF-noise) of deep-submicrometer MOSFETs is experimentally studied with special emphasis on yield relevant parameter scattering. A novel modeling approach is developed which includes detailed consideration of statistical effects. The model is based on device physics parameters which cause statistical variations in LF-noise behavior
Publicado em: 2011
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7. Controle supervisÃrio da cadeia produtiva do biodiesel da mamona baseado em redes de Petri / Supervisory control of castor bean biodiesel suppy chain based on Petri nets
Nowadays many countries present critical problems related to energy demand-supply equilibrium. The reserves of petroleum-based products are unable to face future demand for the next decades. So, the search for alternative sources of energy has been strongly directed to biodiesel. Several fruit oils can be used as a source for biodiesel production and the cas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/09/2009
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8. Use integrated of discrete and continuous simulation methods for troubleshooting logistics in amusement park / Uso integrado de metodos de simulação de eventos discretos e continuos na resolução de problems logisticos em parques de diversão
This study has the objective of developing an integrated model of discrete event and continuous simulation that enabling describe and evaluate the dynamics of the processes of managing a services operation. The model will be developed specifically for the entertainment industry in an amusement park, and will be a tool to aid the analysis of performance and d
Publicado em: 2009
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9. O uso da simulação no suporte a implementação da estrutura de controle supervisório
Abstract: The growth of competitiveness in enterprises has forced them to reduce more the releasing time of their products. Consequently, the enterprise and academy s effort in providing techniques and tools for the reconfiguration of its systems is in force. A manufacturing system is a classical example of a Discrete-Event System (DES), for its dynamics dev
Publicado em: 2008
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10. Evaluation and selection method for discrete event simulation software dedicated to the analysis of logistic systems. / Método para avaliação e seleção de softwares de simulação de eventos discretos aplicados à análise de sistemas logísticos.
The discrete event simulation is one of the most powerful tools available for modeling and problem analysis. Frequently it is used for planning, designing and controlling complex systems in several segments. The logistic system area has also applied it extensively to analyse the logistic capacities, evaluate the impacts of changes in the productive processes
Publicado em: 2007
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11. Automatic dependent surveillance on air traffic control: risk assessment based on fluid stochastic Petri nets modeling. / Vigilância dependente automática no controle de tráfego aéreo: avaliação de risco baseada em modelagem em redes de Petri fluidas e estocásticas.
In last decades, the safety critical systems paradigm has changing to adapt itself to new necessities, such as costs reduction and productivity demand growth. In the Air Traffic System, those changes are ruled by CNS/ATM paradigm (Communication, Navigation, Surveillance / Air Traffic Management), based on new digital Technologies, mainly Satellites, applied
Publicado em: 2007
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12. Projeto e simulação de um controle discreto para a plataforma multi-missão e sua migração para um sistema operacional de tempo real / Design and simulation of a discrete controller for the multi-mission platform and its migration to a real time operational system
This work uses the concepts of visual modeling, automatic code generation and code migration to real time operational systems. As a study case, a three axis stabilized artificial satellite with fine pointing was used, in its nominal operational mode. The dominance of this kind of technology will make it possible to Brazil, through the National Institute of S
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2006