Simulation

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simulation : the imitative representation of the functioning of one system or process by means of the functioning of another — Webster

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Simulation is the imitation of the operation of a real-world process or system over time. The act of simulating something first requires that a model be developed; this model represents the key characteristics or behaviors of the selected physical or abstract system or process. The model represents the system itself, whereas the simulation represents the operation of the system over time. Simulation is used in many contexts, such as simulation of technology for performance optimization, safety engineering, testing, training, education, and video games. Training simulators include flight simulators for training aircraft pilots to provide them with a lifelike experience. Simulation is also used with scientific modelling of natural systems or human systems to gain insight into their functioning. Simulation can be used to show the eventual real effects of alternative conditions and courses of action. Simulation is also used when the real system cannot be engaged, because it may not be accessible, or it may be dangerous or unacceptable to engage, or it is being designed but not yet built, or it may simply not exist. Key issues in simulation include acquisition of valid source information about the relevant selection of key characteristics and behaviours, the use of simplifying approximations and assumptions within the simulation, and fidelity and validity of the simulation outcomes. — Wikipedia

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SAGE Publications Ltd STM: SIMULATION: Table of Contents Table of Contents for SIMULATION. List of articles from both the latest and ahead of print issues.

  • Metamodel-based formalization of DEVS atomic...
    by María Julia Blas on September 14, 2021 at 1:30 am

    SIMULATION, Ahead of Print. <br/>The Discrete-Event System Specification (DEVS) formalism is a modeling formalism based on systems theory that provides a general methodology for hierarchical construction of reusable models in a modular way. When concrete DEVS models are developed using programming languages, it is difficult to ensure they conform to their formal model. Hence, building an implementation of formal models in a way that ensures DEVS formalism correctness is not easy. In this […]

  • Modeling and simulation of the dynamic behavior...
    by Mariana Ribeiro Pereira on September 14, 2021 at 1:30 am

    SIMULATION, Ahead of Print. <br/>The macaw palm (Acrocomia aculeata) is a palm tree native to tropical forests that stand out due to its great potential for oil production. This study was developed with the objective of constructing a high-fidelity model of the macaw palm fruit-rachilla system for the purpose of simulating its dynamic behavior when subjected to mechanical vibrations. The finite element method was used to determine the natural frequencies and modes of vibration of the […]

  • Importance sampling for Markovian tandem queues...
    by Anne Buijsrogge on September 13, 2021 at 8:06 am

    SIMULATION, Volume 97, Issue 12, Page 849-866, December 2021. <br/>We consider importance sampling simulation for estimating the probability of reaching large total number of customers in an [math] tandem queue, during a busy cycle of the system. Our main result is a procedure for obtaining a family of asymptotically efficient changes of measure based on subsolutions. We explicitly show these families for two-node tandem queues and we find that there exist more asymptotically efficient […]

  • Computational simulator that calculates tumor...
    by Terman Frometa-Castillo on September 2, 2021 at 9:40 am

    SIMULATION, Ahead of Print. <br/>Although in the ionizing radiation field many concepts and processes are currently recognized as radiobiological, there are also probabilistic ones, and a probabilistic treatment makes a better understanding about them. The purpose of this study is to develop a new radiobiological simulator that calculates the tumor control probability (TCP) for a tumor heterogeneously irradiated from a fractioned treatment. The three possible types of cells and the […]

  • Effect of different patient peak arrivals on an...
    by Giordano Fava on August 30, 2021 at 8:39 am

    SIMULATION, Ahead of Print. <br/>Emergency department (ED) overcrowding is a well-recognized worldwide phenomenon which affects the quality of emergency care. A direct consequence of overcrowding is a long wait for visit and treatment of people who require primary care, possibly endangering the lives of critical patients. Healthcare management literature devoted to analyze ED operational policies is very wide, and many approaches have been proposed to address this important problem. […]



Modeling and Simulation | News Feed The Latest Modeling and Simulation News and Research

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