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.

  • Sequential probability ratio tests: conservative...
    by Jack PC Kleijnen on October 1, 2020 at 6:27 am

    SIMULATION, Ahead of Print. <br/>Because computers (except for parallel computers) generate simulation outputs sequentially, we recommend sequential probability ratio tests (SPRTs) for the statistical analysis of these outputs. However, until now simulation analysts have ignored SPRTs. To change this situation, we review SPRTs for the simplest case; namely, the case of choosing between two hypothesized values for the mean simulation output. For this case, the classic SPRT of Wald (Wald A. […]

  • A DEVS-based pivotal modeling formalism and its...
    by Kehinde G. Samuel on September 26, 2020 at 7:54 am

    SIMULATION, Ahead of Print. <br/>System verification is an ever-lasting system engineering challenge. The increasing complexity in system simulation requires some level of expertise in handling the idioms of logic and discrete mathematics to correctly drive a full verification process. It is recognized that visual modeling can help to fill the knowledge gap between system experts and analysis experts. However, such an approach has been used on the one hand to specify the behavior of […]

  • The computer simulation of cellular automata...
    by Krzysztof Małecki on September 24, 2020 at 6:22 am

    SIMULATION, Ahead of Print. <br/>Based on the two-lane, symmetric traffic model (STCA), a modified traffic model, including Vehicle-to-Infrastructure (V2I) communication (STCA V2I model, for short), is presented. The combined full-autonomous and semi-autonomous vehicles are able to exchange information as well as the intentions of the driver with the surrounding vehicles through V2I communication. In the analyzed case, the communication between vehicles includes the sending of information […]

  • 802.11 wireless simulation and anomaly detection...
    by Anisa Allahdadi on September 23, 2020 at 6:29 am

    SIMULATION, Ahead of Print. <br/>Despite the growing popularity of 802.11 wireless networks, users often suffer from connectivity problems and performance issues due to unstable radio conditions and dynamic user behavior, among other reasons. Anomaly detection and distinction are in the thick of major challenges that network managers encounter. The difficulty of monitoring broad and complex Wireless Local Area Networks, that often requires heavy instrumentation of the user devices, makes […]

  • Explicit analysis using time-dependent damping...
    by Festus Fameso on September 10, 2020 at 7:00 am

    SIMULATION, Ahead of Print. <br/>Down-times from the in-service failure of power plant components, such as turbine blades, portend dire impacts and consequences in the form of huge financial losses. The susceptibility of steam turbine blades to failure is now being reduced by a novel technique, laser shock peening (LSP), which induces compressive layers through the surface of the blades. Current simulation studies of LSP employing conventional methods are indeed computationally expensive […]



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