Journal articles on the topic 'Simulations'
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Chen, Liang, and Richard F. Serfozo. "Performance limitations of parallel simulations." Journal of Applied Mathematics and Stochastic Analysis 11, no. 3 (January 1, 1998): 397–409. http://dx.doi.org/10.1155/s1048953398000331.
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This study shows how the performance of a parallel simulation may be affected by the structure of the system being simulated. We consider a wide class of linearly synchronous simulations consisting of asynchronous and synchronous parallel simulations (or other distributed-processing systems), with conservative or optimistic protocols, in which the differences in the virtual times of the logical processes being simulated in real time t are of the order o(t) as t tends to infinity. Using a random time transformation idea, we show how a simulation's processing rate in real time is related to the throughput rates in virtual time of the system being simulated. This relation is the basis for establishing upper bounds on simulation processing rates. The bounds for the rates are tight and are close to the actual rates as numerical experiments indicate. We use the bounds to determine the maximum number of processors that a simulation can effectively use. The bounds also give insight into efficient assignment of processors to the logical processes in a simulation.
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Dolag, K., S. Borgani, S. Schindler, A. Diaferio, and A. M. Bykov. "Simulation Techniques for Cosmological Simulations." Space Science Reviews 134, no. 1-4 (February 2008): 229–68. http://dx.doi.org/10.1007/s11214-008-9316-5.
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Kowalski, Julia, Hu Zhao, and Anil Yildiz. "Keynote lecture. Towards reliability-management for debris flow risk assessment." E3S Web of Conferences 415 (2023): 05013. http://dx.doi.org/10.1051/e3sconf/202341505013.
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Recent progress in data-integrated simulation methods excelled our understanding of debris flows including triggering mechanisms and dynamic run-out behavior. Research groups and geohazard practitioners worldwide successfully integrate advanced simulations into workflows for hazard mapping. However, many challenges remain in predictively applying such tools for accepted decision support. One reason is our lack of a systematic approach to managing the simulations’ reliability. In this contribution, we present results on an investigation to which extent the choice of data used for calibration influences the simulation’s reliability. We start with introducing building blocks of a modular and extendible data-integrated debris flow simulation toolchain developed by our group. Next, we introduce reliability as one quality measure of a holistic debris flow simulation and discuss how it can be assessed. Based on a synthetic example, we then show how different types of observed calibration data, such as impact area, deposit volume or localized velocity measurements impacts on the subsequent forward simulation’s posterior probability distribution, hence the simulation’s reliability. We conclude by discussing how linking a debris flow simulation’s reliability to type, scope and resolution of the calibration data could offer a novel pathway towards reliability management for debris flow risk assessment.
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Grafton, Carl, and Anne Permaloff. "Microcomputer Simulations and Simulation Writing Tools." PS: Political Science and Politics 22, no. 2 (June 1989): 247. http://dx.doi.org/10.2307/419603.
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Grafton, Carl, and Anne Permaloff. "Microcomputer Simulations and Simulation Writing Tools." PS: Political Science & Politics 22, no. 02 (June 1989): 247–57. http://dx.doi.org/10.1017/s1049096500030560.
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Pias, Claus. "On the Epistemology of Computer Simulation." ZMK Zeitschrift für Medien- und Kulturforschung 2/1/2011: Offene Objekte 2, no. 1 (2011): 29–54. http://dx.doi.org/10.28937/1000107521.
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"Der Aufsatz plädiert dafür, die Geschichte der wissenschaftlichen Computersimulation auf eine spezifisch medienhistorische Weise zu untersuchen. Nach einigen Vorschlägen zur Charakterisierung der Besonderheiten von Computersimulationen werden zwei Beispiele interpretiert (Management-Simulationen der 1960er und verkehrstechnische bzw. epidemiologische Simulationen der 1990er). Daraus leiten sich Fragen nach dem veränderten Status wissenschaftlichen Wissens, nach der Genese wissenschaftstheoretischer Konzepte und nach wissenschaftskritischen Optionen ab. </br></br>The paper suggests to analyze the history of scientific computer simulations with respect to the history of media. After presenting some ideas concerning the peculiarities of computer simulation, two examples (management simulations of the 1960s; traffic-related and epistemological simulations of the 1990s) are interpreted. From them, further questions concerning the status of scientific knowledge, the genesis of epistemological concepts and their critique are derived. "
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Thatcher, Donald C., and M. June Robinson. "A Simulation on the Design of Simulations." Simulation & Gaming 21, no. 3 (September 1990): 256–61. http://dx.doi.org/10.1177/1046878190213004.
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Minssen, Timo, and Mateo Aboy. "The Patentability of Computer-Implemented Simulations and Implications for Computer-Implemented Inventions (CIIs)." Journal of Intellectual Property Law & Practice 16, no. 7 (June 21, 2021): 633–35. http://dx.doi.org/10.1093/jiplp/jpab098.
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Abstract G 1/19 (Simulations), Enlarged Board of Appeal of the European Patent Office, 10 March 2021 The Enlarged Board of Appeal of the European Patent Office (EPO) held that a computer-implemented simulation of a technical system or process which is claimed as such can, for the purpose of assessing inventive step, solve a technical problem by producing a technical effect going beyond the simulation’s implementation on a computer; and that the established case law on computer-implemented inventions (COMVIK approach) applies to computer-implemented simulations even if these do not have an output having a direct link with physical reality.
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Johnson, Ann. "Institutions for Simulations." Science & Technology Studies 19, no. 1 (January 1, 2006): 35–51. http://dx.doi.org/10.23987/sts.55201.
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Computational nanotechnology is a simulation science; that is, a way of producing scientific knowledge dependent upon computer simulations because, for a variety of reasons, current experimental set-ups do not answer crucial questions. The resource needs of simulation science have often been obscured by two assumptions – that simulations are a ‘cheap’ alternative to experiment and that they are closely connected to theory – though not simply synonymous with or simple extensions of theory. This paper challenges both notions by exploring the resources - human, financial, and computational – needed to perform computational nanotechnology and by showing the close coupling between empirical data and the construction of simulations. I look specifically at three U.S. computational nanotechnology sites and projects: the NASA-Ames Research Center, the Network for Computational Nanotechnology at Purdue University, and the Chemical Industry’s Roadmap for Nanostructured Materials as a protocol for nanotechnological development that specifically addresses the role of simulations.
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EL AJALTOUNI, ELIE, MING ZHANG, AZZEDINE BOUKERCHE, and ROBSON EDUARDO DE GRANDE. "AN ADAPTIVE DYNAMIC LOAD BALANCING TECHNIQUE FOR GRID-BASED LARGE SCALE DISTRIBUTED SIMULATIONS." Journal of Interconnection Networks 10, no. 04 (December 2009): 391–419. http://dx.doi.org/10.1142/s0219265909002637.
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Dynamic load balancing is a key factor in achieving high performance for large scale distributed simulations on grid infrastructures. In a grid environment, the available resources and the simulation's computation and communication behavior may experience critical run-time imbalances. Consequently, an initial static partitioning should be combined with a dynamic load balancing scheme to ensure the high performance of the distributed simulation. In this paper, we propose a dynamic load balancing scheme for distributed simulations on a grid infrastructure. Our scheme is composed of an online network analyzing service coupled with monitoring agents and a run-time model repartitioning service. We present a hierarchical scalable adaptive JXTA service based scheme and use simulation experiments to demonstrate that our proposed scheme exhibits better performance in terms of simulation execution time. Furthermore, we extend our algorithm from a local intra-cluster algorithm to a global inter-cluster algorithm and we consider the proposed global design through a formalized Discrete Event System Specification (DEVS) model system
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Valencia, Alvaro, Patricio Burdiles, Miguel Ignat, Jorge Mura, Eduardo Bravo, Rodrigo Rivera, and Juan Sordo. "Fluid Structural Analysis of Human Cerebral Aneurysm Using Their Own Wall Mechanical Properties." Computational and Mathematical Methods in Medicine 2013 (2013): 1–18. http://dx.doi.org/10.1155/2013/293128.
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Computational Structural Dynamics (CSD) simulations, Computational Fluid Dynamics (CFD) simulation, and Fluid Structure Interaction (FSI) simulations were carried out in an anatomically realistic model of a saccular cerebral aneurysm with the objective of quantifying the effects of type of simulation on principal fluid and solid mechanics results. Eight CSD simulations, one CFD simulation, and four FSI simulations were made. The results allowed the study of the influence of the type of material elements in the solid, the aneurism’s wall thickness, and the type of simulation on the modeling of a human cerebral aneurysm. The simulations use their own wall mechanical properties of the aneurysm. The more complex simulation was the FSI simulation completely coupled with hyperelastic Mooney-Rivlin material, normal internal pressure, and normal variable thickness. The FSI simulation coupled in one direction using hyperelastic Mooney-Rivlin material, normal internal pressure, and normal variable thickness is the one that presents the most similar results with respect to the more complex FSI simulation, requiring one-fourth of the calculation time.
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Parag Udaysinh More, Kumar Sachin, Mykhailo Pervak, Olha Yehorenko, and Oleksandr Rogachevsky. "REVIEW OF SIMULATION MEDICAL TECHNOLOGIES IMPACT ON MODERN EDUCATION." InterConf, no. 16(121) (August 20, 2022): 224–39. http://dx.doi.org/10.51582/interconf.19-20.08.2022.023.
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The adoption of simulation-based medical teaching and learning is one of the key phases in curriculum development. Instead of learning through apprenticeship, medical simulation enables the development of clinical skills through purposeful practice. Role-playing games and patient simulations are examples of human simulations. Manikins and computer-based simulations are examples of non-human simulations. At the undergraduate and graduate levels, medical simulation has been shown to improve clinical competence. Additionally, it has been discovered to have several benefits that can raise patient safety and lower medical expenses
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Mosca, Ivan. "From Fiction to Reality and Back." International Journal of Gaming and Computer-Mediated Simulations 5, no. 1 (January 2013): 13–31. http://dx.doi.org/10.4018/jgcms.2013010102.
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The relation between games and simulations can be profitably investigated by combining ontological tools and recent neurological findings. Neurology shows that simulations are connected to fiction or to reality by a suspension of disbelief or alternatively a suspension of belief, and ontological categories of Mimesis (simulation of an event or an object) and Catharsis (simulation of the experience of an event or object) lead to a classification of ludic simulations, which allow to discover some of their hidden properties. This paper raises some new issues for the field, like Embodied Simulation, Simulations of Depth and of Surface, the Ontological and the Epistemological Barrier, the Simulation Story, and the K-Rule. Finally, some wittgensteinian tools (semantic, syntactic, infra-semantic, and super-syntactic) are used in order to suggest how to transform a simulation into a ludic simulation.
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Hongbo, Sun, and Mi Zhang. "A reflective memory based framework for crowd network simulations." International Journal of Crowd Science 2, no. 1 (March 5, 2018): 74–84. http://dx.doi.org/10.1108/ijcs-01-2018-0004.
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Purpose As main mode of modern service industry and future economy society, the research on crowd network can greatly facilitate governances of economy society and make it more efficient, humane, sustainable and at the same time avoid disorders. However, because most results cannot be observed in real world, the research of crowd network cannot follow a traditional way. Simulation is the main means to put forward related research studies. Compared with other large-scale interactive simulations, simulation for crowd network has challenges of dynamic, diversification and massive participants. Fortunately, known as the most famous and widely accepted standard, high level architecture (HLA) has been widely used in large-scale simulations. But when it comes to crowd network, HLA has shortcomings like fixed federation, limited scale and agreement outside the software system. Design/methodology/approach This paper proposes a novel reflective memory-based framework for crowd network simulations. The proposed framework adopts a two-level federation-based architecture, which separates simulation-related environments into physical and logical aspect to enhance the flexibility of simulations. Simulation definition is introduced in this architecture to resolve the problem of outside agreements and share resources pool (constructed by reflective memory) is used to address the systemic emergence and scale problem. Findings With reference to HLA, this paper proposes a novel reflective memory-based framework toward crowd network simulations. The proposed framework adopts a two-level federation-based architecture, system-level simulation (system federation) and application-level simulation (application federations), which separates simulation-related environments into physical and logical aspect to enhance the flexibility of simulations. Simulation definition is introduced in this architecture to resolve the problem of outside agreements and share resources pool (constructed by reflective memory) is used to address the systemic emergence and scale problem. Originality/value Simulation syntax and semantic are all settled under this framework by templates, especially interface templates, as simulations are separated by two-level federations, physical and logical simulation environment are considered separately; the definition of simulation execution is flexible. When developing new simulations, recompile is not necessary, which can acquire much more reusability, because reflective memory is adopted as share memory within given simulation execution in this framework; population can be perceived by all federates, which greatly enhances the scalability of this kind of simulations; communication efficiency and capability has greatly improved by this share memory-based framework.
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Zayceva, Ol'ga, and Pavel Katyshev. "Social Parameters in the Genre of Communicative Simulation." Virtual Communication and Social Networks 2023, no. 4 (June 2, 2023): 215–21. http://dx.doi.org/10.21603/2782-4799-2023-2-4-215-221.
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Communicative simulation is a virtual practice that reproduces offline forms of social interaction using information and communication technologies. This research parametrized communicative simulation genres and described the interpersonal aspect of virtual interaction in a virtual environment, i.e., bricolage form, intersemiotics, and reduced corporality. Communicative simulations differ from such social practices as offline simulations or role games. The social aspect of communicative simulations includes (1) the media nature of virtual interaction; (2) the hybrid nature of communicative simulations that combines the features of both ordinary simulations and text-based role games; (3) the dual nature of social interaction, carried out simultaneously in material and diegetic spaces. As a result, the social aspect of communicative simulation can be presented in the form of a three-level model: material, diegeological, instrumental levels.
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Lindenschmidt, K. E., F. B. Hesser, and M. Rode. "Integrating water quality models in the High Level Architecture (HLA) environment." Advances in Geosciences 4 (August 9, 2005): 51–56. http://dx.doi.org/10.5194/adgeo-4-51-2005.
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Abstract. HLA (High Level Architecture) is a computer architecture for constructing distributed simulations. It facilitates interoperability among different simulations and simulation types and promotes reuse of simulation software modules. The core of the HLA is the Run-Time Infrastructure (RTI) that provides services to start and stop a simulation execution, to transfer data between interoperating simulations, to control the amount and routing of data that is passed, and to co-ordinate the passage of simulated time among the simulations. The authors are not aware of any HLA applications in the field of water resources management. The development of such a system is underway at the UFZ -Centre for Environmental Research, Germany, in which the simulations of a hydrodynamic model (DYNHYD), eutrophication model (EUTRO) and sediment and micro-pollutant transport model (TOXI) are interlinked and co-ordinated by the HLA RTI environment. This configuration enables extensions such as (i) "cross-model" uncertainty analysis with Monte Carlo Analysis: time synchronisation allows EUTRO and TOXI simulations to be made after each successive simulation time step in DYNHYD, (ii) information transfer from EUTRO to TOXI to compute organic carbon fractions of particulate matter in TOXI, (iii) information transfer from TOXI to EUTRO to compute extinction coefficients in EUTRO and (iv) feedback from water quality simulations to the hydrodynamic modeling.
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Labib, Rania. "Utilizing High Performance Computing to Improve the Application of Machine Learning for Time-Efficient Prediction of Buildings’ Daylighting Performance." Journal of Physics: Conference Series 2069, no. 1 (November 1, 2021): 012153. http://dx.doi.org/10.1088/1742-6596/2069/1/012153.
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Abstract Architects often investigate the daylighting performance of hundreds of design solutions and configurations to ensure an energy-efficient solution for their designs. To shorten the time required for daylighting simulations, architects usually reduce the number of variables or parameters of the building and facade design. This practice usually results in the elimination of design variables that could contribute to an energy-optimized design configuration. Therefore, recent research has focused on incorporating machine learning algorithms that require the execution of only a relatively small subset of the simulations to predict the daylighting and energy performance of buildings. Although machine learning has been shown to be accurate, it still becomes a time-consuming process due to the time required to execute a set of simulations to be used as training and validation data. Furthermore, to save time, designers often decide to use a small simulation subset, which leads to a poorly designed machine learning algorithm that produces inaccurate results. Therefore, this study aims to introduce an automated framework that utilizes high performance computing (HPC) to execute the simulations necessary for the machine learning algorithm while saving time and effort. High performance computing facilitates the execution of thousands of tasks simultaneously for a time-efficient simulation process, therefore allowing designers to increase the size of the simulation’s subset. Pairing high performance computing with machine learning allows for accurate and nearly instantaneous building performance predictions.
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Boulet, Xavier, Mahdi Zargayouna, Gérard Scemama, and Fabien Leurent. "A Middleware-Based Approach for Multi-Scale Mobility Simulation." Future Internet 13, no. 2 (January 20, 2021): 22. http://dx.doi.org/10.3390/fi13020022.
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Modeling and simulation play an important role in transportation networks analysis. In the literature, authors have proposed many traffic and mobility simulations, with different features and corresponding to different contexts and objectives. They notably consider different scales of simulations. The scales refer to the represented entities, as well as to the space and the time representation of the transportation environment. However, we often need to represent different scales in the same simulation, for instance to represent a neighborhood interacting with a wider region. In this paper, we advocate for the reuse of existing simulations to build a new multi-scale simulation. To do so, we propose a middleware model to couple independent mobility simulations, working at different scales. We consider all the necessary processing and workflow to allow for a coherent orchestration of these simulations. We also propose a prototype implementation of the middleware. The results show that such a middleware is capable of creating a new multi-scale mobility simulation from existing ones, while minimizing the incoherence between them. They also suggest that, to have a maximal benefit from the middleware, existing mobility simulation platforms should allow for an external control of the simulations, allowing for executing a time step several times if necessary.
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Durst, Phillip J., Derek T. Anderson, and Cindy L. Bethel. "A historical review of the development of verification and validation theories for simulation models." International Journal of Modeling, Simulation, and Scientific Computing 08, no. 02 (January 9, 2017): 1730001. http://dx.doi.org/10.1142/s1793962317300011.
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Modeling and simulation (M&S) play a critical role in both engineering and basic research processes. Computer-based models have existed since the 1950s, and those early models have given way to the more complex computational and physics-based simulations used today. As such, a great deal of research has been done to establish what level of trust should be given to simulation outputs and how to verify and validate the models used in these simulations. This paper presents an overview of the theoretical work done to date defining formal definitions for, and methods of, verification and validation (V&V) of computer models. Simulation models are broken down into three broad categories: analytical and simulation models, computational and physics-based models, and simulations of autonomous systems, and the unique theories and methods developed to address V&V of these models are presented. This paper also presents the current problems in the theoretical field of V&V for models as simulations move from single system models and simulations to more complex simulation tools. In particular, this paper highlights the lack of agreed-upon methods for V&V of simulations of autonomous systems, such as an autonomous unmanned vehicles, and proposes some next steps needed to address this problem.
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Kim, Byeong Soo, Seunghoon Nam, Yooeui Jin, and Kyung-Min Seo. "Simulation Framework for Cyber-Physical Production System: Applying Concept of LVC Interoperation." Complexity 2020 (October 8, 2020): 1–11. http://dx.doi.org/10.1155/2020/4321873.
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In Industry 4.0, many manufacturers have built smart factories by ICTs (Information and Communications Technology), and simulation is one of the core technologies for smart manufacturing. Various kinds of simulations, depending on system levels, such as assembly line, logistics, worker, and process, are utilized for smart manufacturing. Manufacturers own heterogeneous simulations; however, they have difficulty integrating and interoperating them. This paper proposes a novel simulation framework for smart manufacturing based on the concept of live, virtual, and constructive (LVC) simulation. The LVC interoperation provides a synthetic simulation environment with the above three types of simulations. With the LVC interoperation, we propose a systematic and efficient architecture for smart manufacturing. To be specific, the interface technologies between the heterogeneous simulations and their interoperable methods are developed. Finally, we provide a practical LVC simulation applied in the manufacturing company and show what synergy can be created using the LVC simulation.
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Datteri, Edoardo, and Viola Schiaffonati. "Robotic Simulations, Simulations of Robots." Minds and Machines 29, no. 1 (January 25, 2019): 109–25. http://dx.doi.org/10.1007/s11023-019-09490-x.
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Kim, Kyeng-Jin, Moon-Ji Choi, and Kyu-Jin Kim. "Effects of Nursing Simulation Using Mixed Reality: A Scoping Review." Healthcare 9, no. 8 (July 27, 2021): 947. http://dx.doi.org/10.3390/healthcare9080947.
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Mixed reality (MR) has recently been suggested as a new educational tool for nursing simulation. However, few studies have assessed the use and evaluation of MR nursing simulations. Therefore, this review identified studies of MR nursing simulations through a scoping review using the framework proposed by Arksey and O’Malley. The studies reviewed were found through DBpia, RISS, PubMed, CINAHL, and Google Scholar. Each study was analyzed, and data were abstracted into publication characteristics, simulation program details, device use, and simulation evaluation. A total of 10 studies were reviewed. Senses that were mainly used in MR nursing simulation included audition and haptics via motion, in addition to visual information. Simulations were evaluated using various outcome variables. Knowledge was most commonly evaluated, followed by clinical performance and satisfaction. This study is significant as it analyzed trends in research on MR nursing simulations in Korea and other countries and suggested directions for the use of MR technology in nursing simulations based on the findings. Additional studies are required to develop scenarios for the effective use of MR in nursing education and to evaluate the effects of MR nursing simulations.
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Sherek, Paul A., Louis G. Hector, John R. Bradley, Paul E. Krajewski, and Eric M. Taleff. "Simulation and Experiments for Hot Forming of Rectangular Pans in Fine-Grained Aluminum Alloy AA5083." Key Engineering Materials 433 (March 2010): 185–95. http://dx.doi.org/10.4028/www.scientific.net/kem.433.185.
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Accurate numerical simulation capability is critical to the development and implementation of hot forming technologies. Numerical simulations were developed for gas-pressure forming of commercial, fine-grained aluminum-magnesium (AA5083) material into deep pan shapes at 450°C. These simulations utilize a material constitutive model recently developed for fine-grained AA5083 materials as a user-defined routine in commercial Finite Element Method (FEM) software. Results from simulations are compared against data from gas-pressure forming experiments, which used the same forming conditions and die geometries. Specifically, local sheet thinning and radius of curvature in edges and corners are compared between simulation and experiment. Numerical simulations are in good agreement with experiments for local sheet thinning of up to 50%. For locations where sheet thinning exceeds 50%, simulations predict less thinning and larger formed radii than observed in experiments. It is likely that cavitation, which is not accounted for in simulations, plays a significant role in causing a decrease in simulation prediction accuracy for thinning values greater than 50%. This study demonstrates a simulation capability that is potentially of significant practical use for predicting the hot gas-pressure forming of fine-grained AA5083 material.
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Moshagen, Thilo. "Convergence of explicitly coupled simulation tools (co-simulations)." Journal of Numerical Mathematics 27, no. 1 (March 26, 2019): 23–36. http://dx.doi.org/10.1515/jnma-2017-0073.
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Abstract In engineering, it is a common desire to couple existing simulation tools together into one big system by passing information from subsystems as parameters into the subsystems under influence. As executed at fixed time points, this data exchange gives the global method a strong explicit component. Globally, such an explicit co-simulation schemes exchange time step can be seen as a step of an one-step method which is explicit in some solution components. Exploiting this structure, we give a convergence proof for such schemes. As flows of conserved quantities are passed across subsystem boundaries, it is not ensured that system-wide balances are fulfilled: the system is not solved as one single equation system. These balance errors can accumulate and make simulation results inaccurate. Use of higher-order extrapolation in exchanged data can reduce this problem but cannot solve it. The remaining balance error has been handled in past work by recontributing it to the input signal in next coupling time step, a technique labeled balance correction methods. Convergence for that method is proven. Further, the lack of stability for co-simulation schemes with and without balance correction is stated.
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Gardner, Carl L., Wolfgang Nonner, and Robert S. Eisenberg. "Electrodiffusion Model Simulation of Ionic Channels: 1D Simulations." Journal of Computational Electronics 3, no. 1 (January 2004): 25–31. http://dx.doi.org/10.1023/b:jcel.0000029453.09980.fb.
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Danforth, Amanda L., and Lyle N. Long. "Nonlinear acoustic simulations using direct simulation Monte Carlo." Journal of the Acoustical Society of America 116, no. 4 (October 2004): 1948–55. http://dx.doi.org/10.1121/1.1785614.
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Myllykoski, P. "Using forming simulations to improve mechanical simulation accuracy." Journal of Materials Processing Technology 177, no. 1-3 (July 2006): 422–25. http://dx.doi.org/10.1016/j.jmatprotec.2006.04.096.
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de Frutos Escrig, David, and Carlos Gregorio Rodríguez. "Constrained Simulations, Nested Simulation Semantics and Counting Bisimulations." Electronic Notes in Theoretical Computer Science 206 (April 2008): 41–58. http://dx.doi.org/10.1016/j.entcs.2008.03.074.
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Rasmussen, Steen, Nils A. Baas, Bernd Mayer, and Martin Nilsson. "Defense of the Ansatz for Dynamical Hierarchies." Artificial Life 7, no. 4 (October 2001): 367–73. http://dx.doi.org/10.1162/106454601317297004.
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Gross and McMullin [Artificial Life, 7, 355–365] criticize the conclusions of our article on dynamical hierarchies [Artificial Life, 7, 329–353]. In this note we respond to their criticisms. After clarifying our ansatz, we argue that the simulations presented by Gross and McMullin present no evidence against the ansatz, in part because their simulations use a different simulation framework, and in part because their simulations are no less complex than ours. We also clarify why the micelles in our simulations are third-order emergent structures, and why we emphasize realism in our simulation.
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Surendranath, H., and M. Dunbar. "Parallel Computing for Tire Simulations." Tire Science and Technology 39, no. 3 (September 1, 2011): 193–209. http://dx.doi.org/10.2346/1.3637743.
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Abstract Over the last few decades, finite element analysis has become an integral part of the overall tire design process. Engineers need to perform a number of different simulations to evaluate new designs and study the effect of proposed design changes. However, tires pose formidable simulation challenges due to the presence of highly nonlinear rubber compounds, embedded reinforcements, complex tread geometries, rolling contact, and large deformations. Accurate simulation requires careful consideration of these factors, resulting in the extensive turnaround time, often times prolonging the design cycle. Therefore, it is extremely critical to explore means to reduce the turnaround time while producing reliable results. Compute clusters have recently become a cost effective means to perform high performance computing (HPC). Distributed memory parallel solvers designed to take advantage of compute clusters have become increasingly popular. In this paper, we examine the use of HPC for various tire simulations and demonstrate how it can significantly reduce simulation turnaround time. Abaqus/Standard is used for routine tire simulations like footprint and steady state rolling. Abaqus/Explicit is used for transient rolling and hydroplaning simulations. The run times and scaling data corresponding to models of various sizes and complexity are presented.
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Cao, Yang, Congsheng Fu, and Mingxiang Yang. "Integrating Hourly Scale Hydrological Modeling and Remote Sensing Data for Flood Simulation and Hydrological Analysis in a Coastal Watershed." Applied Sciences 13, no. 18 (September 18, 2023): 10409. http://dx.doi.org/10.3390/app131810409.
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Hourly scale hydrological modeling holds pivotal significance for flood-related research, as watershed floods often occur within a few hours of intense rainfall. Although the SWAT model’s hourly simulation has found application in a few watersheds, the relatively short usage history and limited scope inhibit a comprehensive grasp of its potential. In this study, a coastal watershed in Fukuyama City, Japan was selected as a case study for conducting hourly simulations. The study highlights the hourly simulation’s proficiency in capturing diverse flood trends while also accurately replicating baseflow and flood peaks within the 0 to 200 m3/s range. However, there is an underestimation of peak flows in calculations exceeding 200 m3/s. Moreover, empirical summaries have been generated to outline the parameterization process of hourly simulation, revealing how distinct parameters influence simulated runoff. For instance, it outlines how BFLO_DIST significantly affects baseflow simulation when operating in hourly mode. Our findings provide an empirical summary of the advantages, disadvantages, and parameterization process for hourly simulations of the SWAT model.
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Angolia, Mark, and April Helene Reed. "A case for early semester utilization of business simulations." Journal of Applied Research in Higher Education 11, no. 1 (February 4, 2019): 90–101. http://dx.doi.org/10.1108/jarhe-07-2017-0082.
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PurposeThe purpose of this paper is to encourage the use of simulations early in a semester, rather than as a course capstone activity, in an effort to utilize simulations as a foundational experience. The intent is to support teaching and learning, as opposed to using simulations as a capstone assignment or assessment tool.Design/methodology/approachA comprehensive literature review synthesizing higher education business simulation effectivity and evaluation methods provides support for the analysis of 60 undergraduate supply chain management students and 96 surveys conducted over two years. The research question explores effectiveness based on the point of time during a semester a simulation was used.FindingsThe analysis of simulation effectiveness, based on the impact of course enjoyment and assistance with learning key course competencies, showed no significant differences for simulations used early in a semester or as an end-of-semester capstone event.Practical implicationsSimulations are effective tools regardless of when they are employed, but there may be significant benefits to using a simulation early in a semester by capitalizing on the tool’s inherent experiential learning functionality, active learning theory and the Kolb Experiential Learning Cycle. Early use of simulations provides common student experiences and creates a foundation for educators to develop a deeper understanding of course concepts. Additional instructor effort is needed to develop external, course specific student work to supplement and enhance the simulation experience. Early use also creates post-simulation debriefing benefits that may be precluded by the end-of-semester simulation events.Originality/valueEvidence suggests that simulations are primarily utilized as course capstone events and/or serve as comprehensive tools to integrate/assess a semester’s worth of conceptual learning. This work fills a gap in the research concerning time frames within a semester when simulations are traditionally employed, presenting a paradigm shift toward early utilization.
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Franceschi, Paul. "L’argument de la Simulation et le problème de la classe de référence : le point de vue du contextualisme dialectique." Varia 43, no. 2 (December 5, 2016): 371–89. http://dx.doi.org/10.7202/1038211ar.
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Je présente dans cet article une analyse de l’argument de la Simulation selon le point de vue du contextualisme dialectique, fondée sur le problème de la classe de référence. Je décris tout d’abord l’argument de la Simulation de manière détaillée. J’identifie ensuite la classe de référence et j’applique successivement l’argument à trois classes de référence distinctes : les simulations conscientes de leur propre nature de simulation, les simulations imparfaites et les simulations à immersion. Finalement, je montre qu’il existe trois niveaux de conclusion dans l’argument de la Simulation, selon la classe de référence choisie, qui engendrent des conclusions finales d’une nature très différente.
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Sreejaya, P. "Business Simulations in Management Pedagogy: Role of Libraries in Enhancing Access to Business Simulations: A Case Study." Asian Journal of Information Science and Technology 9, S1 (February 5, 2019): 51–57. http://dx.doi.org/10.51983/ajist-2019.9.s1.222.
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Looking at the contemporary educational practice, we come across a host of buzzwords such as immersive environments, participatory learning, experiential learning, experimental learning, etc. Due to the drastic development in the information and communication technology areas, various new educational methods have emerged such as e-learning and virtual learning environment. Education, especially, the higher education scenario has witnessed the boom of new pedagogical tools. Among this, ‘simulations’ is a new mode of teaching and learning in the management pedagogy that is gaining ground and appreciation. Simulations act as an essential educational tool in the virtual learning environment. There has been a significant increase in the use of business simulation games in the area of management education. Business simulations attempt to bring real-life business scenarios to life in the classroom to develop the desired capacities and skills of the students.The most important advantage of a simulation is that they help to establish a new learning relationship with the students and assigning new roles to them and build their capacities regarding participatory learning. This paper highlights the concept of simulation, and it also explores the role of simulation in management education. It discusses various business simulations available in the market. This article also shares the Indian Institute of Management Kozhikode library’s experience about the facilitation of simulations with a special reference to Harvard Business School Publishing Simulations, for its academic programmes during the past few years.
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Greif, Hajo. "Exploring Minds: Modes of Modeling and Simulation in Artificial Intelligence." Perspectives on Science 29, no. 4 (July 2021): 409–35. http://dx.doi.org/10.1162/posc_a_00377.
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Abstract The aim of this paper is to grasp the relevant distinctions between various ways in which models and simulations in Artificial Intelligence (AI) relate to cognitive phenomena. In order to get a systematic picture, a taxonomy is developed that is based on the coordinates of formal versus material analogies and theory-guided versus pre-theoretic models in science. These distinctions have parallels in the computational versus mimetic aspects and in analytic versus exploratory types of computer simulation. The proposed taxonomy cuts across the traditional dichotomies between symbolic and embodied AI, general intelligence and symbol and intelligence and cognitive simulation and human/non-human-like AI. According to the taxonomy proposed here, one can distinguish between four distinct general approaches that figured prominently in early and classical AI, and that have partly developed into distinct research programs: first, phenomenal simulations (e.g., Turing’s “imitation game”); second, simulations that explore general-level formal isomorphisms in pursuit of a general theory of intelligence (e.g., logic-based AI); third, simulations as exploratory material models that serve to develop theoretical accounts of cognitive processes (e.g., Marr’s stages of visual processing and classical connectionism); and fourth, simulations as strictly formal models of a theory of computation that postulates cognitive processes to be isomorphic with computational processes (strong symbolic AI). In continuation of pragmatic views of the modes of modeling and simulating world affairs, this taxonomy of approaches to modeling in AI helps to elucidate how available computational concepts and simulational resources contribute to the modes of representation and theory development in AI research—and what made that research program uniquely dependent on them.
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Musa, Dahlia, Laura Gonzalez, Heidi Penney, and Salam Daher. "Technology Acceptance and Authenticity in Interactive Simulation: Experimental Study." JMIR Medical Education 9 (February 15, 2023): e40040. http://dx.doi.org/10.2196/40040.
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Background Remote and virtual simulations have gained prevalence during the COVID-19 pandemic as institutions maintain social distancing measures. Because of the challenges of cost, flexibility, and feasibility in traditional mannequin simulation, many health care educators have used videos as a remote simulation modality; however, videos provide minimal interactivity. Objective In this study, we aimed to evaluate the role of interactivity in students’ simulation experiences. We analyzed students’ perceptions of technology acceptance and authenticity in interactive and noninteractive simulations. Methods Undergraduate nursing students participated in interactive and noninteractive simulations. The interactive simulation was conducted using interactive video simulation software that we developed, and the noninteractive simulation consisted of passively playing a video of the simulation. After each simulation, the students completed a 10-item technology acceptance questionnaire and 6-item authenticity questionnaire. The data were analyzed using the Wilcoxon signed-rank test. In addition, we performed an exploratory analysis to compare technology acceptance and authenticity in interactive local and remote simulations using the Mann-Whitney U test. Results Data from 29 students were included in this study. Statistically significant differences were found between interactive and noninteractive simulations for overall technology acceptance (P<.001) and authenticity (P<.001). Analysis of the individual questionnaire items showed statistical significance for 3 out of the 10 technology acceptance items (P=.002, P=.002, and P=.004) and 5 out of the 6 authenticity items (P<.001, P<.001, P=.001, P=.003, and P=.005). The interactive simulation scored higher than the noninteractive simulation in all the statistically significant comparisons. Our exploratory analysis revealed that local simulation may promote greater perceptions of technology acceptance (P=.007) and authenticity (P=.027) than remote simulation. Conclusions Students’ perceptions of technology acceptance and authenticity were greater in interactive simulation than in noninteractive simulation. These results support the importance of interactivity in students’ simulation experiences, especially in remote or virtual simulations in which students’ involvement may be less active.
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JEBEILE, JULIE. "Les simulations sont-elles des expériences numériques?" Dialogue 55, no. 1 (February 4, 2016): 59–86. http://dx.doi.org/10.1017/s0012217315001122.
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Certains philosophes ont défendu qu’une analogie existait entre simulations et expériences. Mais, une fois que l’on a reconnu quelques similitudes entre elles, peut-on réellement conclure qu’en vertu de celles-ci les simulations produisent de nouvelles connaissances empiriques comme les expériences? Je soutiens que ces similitudes donnent tout au plus à l’utilisateur d’une simulation l’illusion qu’il a affaire à une expérience, mais ne peuvent fonder sérieusement une analogie entre simulation et expérience. Cependant il ne faudrait pas conclure que l’expérience est épistémologiquement supérieure à la simulation. J’analyse les cas pour lesquels simulation et expérience engendrent également des connaissances nouvelles.
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Arteta, J., V. Marécal, and E. D. Rivière. "Regional modelling of tracer transport by tropical convection – Part 2: Sensitivity to model resolutions." Atmospheric Chemistry and Physics Discussions 9, no. 2 (March 4, 2009): 5929–65. http://dx.doi.org/10.5194/acpd-9-5929-2009.
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Abstract. The general objective of this series of two papers is to evaluate long duration limited-area simulations with idealised tracers as a tool to assess the tracer transport in chemistry-transport models (CTMs). In this second paper we analyse the results of three simulations using different horizontal and vertical resolutions against meteorological observations and their impact on idealized tracer transport. The reference simulation (REF) uses a 60 km horizontal resolution and 300 m vertically in the upper troposphere/lower stratosphere (UTLS). A 20 km horizontal resolution simulation (HR) is run as well as a simulation (CVR) with 850 m vertical resolution in the UTLS. The simulations are run for one month during the SCOUT-O3 field campaign. The Falcon and Geophysica aircraft data and the TRMM rainrate estimates have been used to evaluate the simulations. They show that the HR configuration gives generally a better agreement with the measurements than the REF simulation, the CVR simulation giving generally the worst results. The vertical distribution of the tropospheric tracers for the simulations has a similar shape with a 15 km altitude maximum of 0.4 ppbv for REF, 1.2 for HR and 0.04 for CVR. This is related to the dynamics produced by the three simulations that leads to larger values of the upward velocities on average for HR and lower for CVR compared to REF. The HR provides more frequent overshoots over the cold point dynamical barrier than REF and CVR. For the stratospheric tracers the differences between the three simulations are small. The diurnal cycle of the fluxes of all tracers in the TTL (Tropical Tropopause Layer) exhibits a maximum linked to the maximum of convective activity that is particularly well marked in the HR simulation. The largest integrated fluxes are found for tropospheric tracers in HR.
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Kulkarni, Bindu, Ranjan Banerjee, and Rajasekaran Raghunathan. "Why Students Should Be Taught Differently: Learner Characteristics, Learning Styles and Simulation Performance." Simulation & Gaming 53, no. 1 (December 23, 2021): 56–74. http://dx.doi.org/10.1177/10468781211065809.
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Background Business simulation as an instructional tool helps in developing integrative thinking and decision making skills. It is being taught to audiences who differ considerably in age, work experience (learner characteristics) and learning styles. The use of simulations is likely to grow further with advancements in internet technology and the fact that simulations are very amenable to remote modes of instruction. Aim This study aims to assess how learner characteristics and learning styles impact business simulation performance. It further assesses the combined effect of learner characteristics and learning styles on performance in business simulations, we specifically consider the manner in which learning styles moderate the impact of learner characteristics (age) on simulation performance. Method The study was conducted with 605 students of full time MBA and executive MBA programs with age group varying from 21 years to 53 years. They were taught using the same business simulation by CAPSIM. The learning styles were measured using Felder-Solomon’s instrument ‘Index of learning style’. Regression analysis was conducted with predictor variables of learner characteristics and learning styles and outcome variable of simulation performance. The moderating effect of specific learning styles on learner characteristics was identified. Results The findings indicate that age is a significant predictor of simulation performance (younger, tech savvy students do better). Also, the use of reflective learning style enables better performance in business simulations. Older students are able to draw on experience and benefit more from reflective learning, for business simulations which involve integration across functions. Conclusion The study enhances our conceptual understanding of the factors enabling performance in business simulations and provides specific direction on how instructors must adapt facilitation approaches for different age groups of participants. Reflection is important for learning with business simulations; hence, the reflective learning style should be encouraged particularly among older students.
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Bühler, M., and T. Bednar. "A review on coupled building physics analyses." Journal of Physics: Conference Series 2069, no. 1 (November 1, 2021): 012141. http://dx.doi.org/10.1088/1742-6596/2069/1/012141.
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Abstract This paper reviews methods and tools for coupled building physics analyses in the context of Building Performance Simulations (BPS) with a focus on Building Energy Simulations (BES) and Computational Fluid Dynamics (CFD) as a common application. Furthermore, requirements regarding the necessary information for simulations, data models and coupling are identified. Possibilities of automated simulation model generation, data exchange and the performance of existing multi physics simulation models are analysed and limiting factors are discussed.
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Sheng, Chunyang, Kenichi Nomura, Pankaj Rajak, Aiichiro Nakano, Rajiv K. Kalia, and Priya Vashishta. "Quantum Molecular Dynamics Validation of Nanocarbon Synthesis by High-Temperature Oxidation of Nanoparticles." MRS Advances 1, no. 24 (2016): 1811–16. http://dx.doi.org/10.1557/adv.2016.413.
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ABSTRACTThis study uses ab initio quantum molecular dynamics (QMD) simulations to validate multimillion-atom reactive molecular dynamics (RMD) simulations, and predicts unexpected condensation of carbon atoms during high-temperature oxidation of silicon-carbide nanoparticles (nSiC). For the validation process, a small nSiC in oxygen environment is chosen to perform QMD simulation. The QMD results provide the number of Si-O and C-O bonds as a function of time. RMD simulation is then performed under the identical condition. The time evolutions of different bonds are compared between the QMD and RMD simulations. We observe the condensation of large number of C-cluster nuclei into larger C clusters in both simulations, thereby validating RMD. Furthermore, we use the QMD simulation results as an input to a multi-objective genetic algorithm to train the RMD force-field parameters. The resulting force field far better reproduces the ground-truth QMD simulation results.
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Fogolari, Federico, Alessandra Corazza, Stefano Toppo, Silvio C. E. Tosatto, Paolo Viglino, Fulvio Ursini, and Gennaro Esposito. "Studying Interactions by Molecular Dynamics Simulations at High Concentration." Journal of Biomedicine and Biotechnology 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/303190.
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Molecular dynamics simulations have been used to study molecular encounters and recognition. In recent works, simulations using high concentration of interacting molecules have been performed. In this paper, we consider the practical problems for setting up the simulation and to analyse the results of the simulation. The simulation of beta 2-microglobulin association and the simulation of the binding of hydrogen peroxide by glutathione peroxidase are provided as examples.
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Li, Yin, Yueying Ni, Rupert A. C. Croft, Tiziana Di Matteo, Simeon Bird, and Yu Feng. "AI-assisted superresolution cosmological simulations." Proceedings of the National Academy of Sciences 118, no. 19 (May 4, 2021): e2022038118. http://dx.doi.org/10.1073/pnas.2022038118.
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Cosmological simulations of galaxy formation are limited by finite computational resources. We draw from the ongoing rapid advances in artificial intelligence (AI; specifically deep learning) to address this problem. Neural networks have been developed to learn from high-resolution (HR) image data and then make accurate superresolution (SR) versions of different low-resolution (LR) images. We apply such techniques to LR cosmological N-body simulations, generating SR versions. Specifically, we are able to enhance the simulation resolution by generating 512 times more particles and predicting their displacements from the initial positions. Therefore, our results can be viewed as simulation realizations themselves, rather than projections, e.g., to their density fields. Furthermore, the generation process is stochastic, enabling us to sample the small-scale modes conditioning on the large-scale environment. Our model learns from only 16 pairs of small-volume LR-HR simulations and is then able to generate SR simulations that successfully reproduce the HR matter power spectrum to percent level up to 16 h−1Mpc and the HR halo mass function to within 10% down to 1011 M⊙. We successfully deploy the model in a box 1,000 times larger than the training simulation box, showing that high-resolution mock surveys can be generated rapidly. We conclude that AI assistance has the potential to revolutionize modeling of small-scale galaxy-formation physics in large cosmological volumes.
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Mabie, Daniel, and David Schuster. "Lessons Learned in Leveraging Existing Simulations for Cybersecurity Training, Evaluation, and Research." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 64, no. 1 (December 2020): 425–29. http://dx.doi.org/10.1177/1071181320641095.
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We provide lessons learned in leveraging existing simulations to conduct human-subjects cybersecurity experiments and develop training for cybersecurity professionals. First, we provide criteria for the evaluation and categorization of existing simulation tools into four categories (competitions, testbeds, tabletop exercises, and simulations used in published research). Following this, eight criteria are offered to evaluate simulations on their suitability for use in experiments. We evaluated one representative product in each category. This paper serves as a resource for practitioners who use simulation as a method of training or evaluation. Further, this work is a starting point for researchers to efficiently find and leverage simulations to conduct cybersecurity research.
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Muetzelfeldt, Mark R., Reinhard Schiemann, Andrew G. Turner, Nicholas P. Klingaman, Pier Luigi Vidale, and Malcolm J. Roberts. "Evaluation of Asian summer precipitation in different configurations of a high-resolution general circulation model in a range of decision-relevant spatial scales." Hydrology and Earth System Sciences 25, no. 12 (December 16, 2021): 6381–405. http://dx.doi.org/10.5194/hess-25-6381-2021.
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Abstract. High-resolution general circulation models (GCMs) can provide new insights into the simulated distribution of global precipitation. We evaluate how summer precipitation is represented over Asia in global simulations with a grid length of 14 km. Three simulations were performed: one with a convection parametrization, one with convection represented explicitly by the model's dynamics, and a hybrid simulation with only shallow and mid-level convection parametrized. We evaluate the mean simulated precipitation and the diurnal cycle of the amount, frequency, and intensity of the precipitation against satellite observations of precipitation from the Climate Prediction Center morphing method (CMORPH). We also compare the high-resolution simulations with coarser simulations that use parametrized convection. The simulated and observed precipitation is averaged over spatial scales defined by the hydrological catchment basins; these provide a natural spatial scale for performing decision-relevant analysis that is tied to the underlying regional physical geography. By selecting basins of different sizes, we evaluate the simulations as a function of the spatial scale. A new BAsin-Scale Model Assessment ToolkIt (BASMATI) is described, which facilitates this analysis. We find that there are strong wet biases (locally up to 72 mm d−1 at small spatial scales) in the mean precipitation over mountainous regions such as the Himalayas. The explicit convection simulation worsens existing wet and dry biases compared to the parametrized convection simulation. When the analysis is performed at different basin scales, the precipitation bias decreases as the spatial scales increase for all the simulations; the lowest-resolution simulation has the smallest root mean squared error compared to CMORPH. In the simulations, a positive mean precipitation bias over China is primarily found to be due to too frequent precipitation for the parametrized convection simulation and too intense precipitation for the explicit convection simulation. The simulated diurnal cycle of precipitation is strongly affected by the representation of convection: parametrized convection produces a peak in precipitation too close to midday over land, whereas explicit convection produces a peak that is closer to the late afternoon peak seen in observations. At increasing spatial scale, the representation of the diurnal cycle in the explicit and hybrid convection simulations improves when compared to CMORPH; this is not true for any of the parametrized simulations. Some of the strengths and weaknesses of simulated precipitation in a high-resolution GCM are found: the diurnal cycle is improved at all spatial scales with convection parametrization disabled, the interaction of the flow with orography exacerbates existing biases for mean precipitation in the high-resolution simulations, and parametrized simulations produce similar diurnal cycles regardless of their resolution. The need for tuning the high-resolution simulations is made clear. Our approach for evaluating simulated precipitation across a range of scales is widely applicable to other GCMs.
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Dinkelbach, Jan, Ghassen Nakti, Markus Mirz, and Antonello Monti. "Simulation of Low Inertia Power Systems Based on Shifted Frequency Analysis." Energies 14, no. 7 (March 27, 2021): 1860. http://dx.doi.org/10.3390/en14071860.
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New types of power system transients with lower time constants are emerging due to the replacement of synchronous generation with converter interfaced generation and are challenging the modeling approaches conventionally applied in power system simulation. Quasi-stationary simulations are based on classical phasor models, whereas EMT simulations calculate the instantaneous values of models in the time domain. In addition to these conventional modeling approaches, this paper investigates simulation based on dynamic phasor models, as has been proposed by the Shifted Frequency Analysis. The simulation accuracy of the three modeling approaches was analyzed for characteristic transients from the electromagnetic to the electromechanical phenomena range, including converter control as well as low inertia transients. The analysis was carried out for systems with converter interfaced and synchronous generation whilst considering the simulation step size as a crucial influence parameter. The results show that simulations based on dynamic phasors allow for larger step sizes than simulations that calculate the instantaneous values in the time domain. This can facilitate the simulation of more complex component models and larger grid sizes. In addition, with dynamic phasors, more accurate simulation results were obtained than with classical phasors, in particular—but not exclusively—in a low inertia case. Overall, the presented work demonstrates that dynamic phasors can enable fast and accurate simulations during the transition to low inertia power systems.
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Roberts, Stephen K., and Metin I. Yaras. "Large-Eddy Simulation of Transition in a Separation Bubble." Journal of Fluids Engineering 128, no. 2 (August 10, 2005): 232–38. http://dx.doi.org/10.1115/1.2170123.
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In this paper, large-eddy simulation of the transition process in a separation bubble is compared to experimental results. The measurements and simulations are conducted under low freestream turbulence conditions over a flat plate with a streamwise pressure distribution typical of those encountered on the suction side of turbine airfoils. The computational grid is refined to the extent that the simulation qualifies as a “coarse” direct numerical simulation. The simulations are shown to accurately capture the transition process in the separated shear layer. The results of these simulations are used to gain further insight into the breakdown mechanisms in transitioning separation bubbles.
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Holmberg, Robert, Niklas Karlsson, and Alexander Styhre. "Rethinking Production Games." Concepts and Transformation 3, no. 3 (January 1, 1998): 271–82. http://dx.doi.org/10.1075/cat.3.3.06hol.
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Within the discourse on contemporary, post-Taylorist working life, production games and simulations are widely accepted as tools to facilitate learning and communication in organizations. We suggest that research programs dealing with production games can be seen as lying between two typical positions. Insiders — any significant group that proposes that simulations are useful — argue that they are fair representations of work practices, and that they hold specific qualities. Outsiders — researchers seeking to understand how simulations work in action — reject these kinds of 3.. priori statements, claiming that it is not meaningful to express any of the qualities of simulations prior to the simulation situation without succumbing to mythologizing simulations. This paper presents a study, undertaken from an outsider perspective, of a simulation game used in Sweden. We suggest that simulation games are complex social interactions carrying a considerable, albeit not yet fully exploited, potential for learning. The outline of the simulation favored the use of recently developed shop floor practices over old practices, and the explanation for the success of the new practices was often interpreted in terms of technical aspects of the production process. Observations and interviews indicate that research from an insider perspective tends to underestimate the emergent character of the simulations and how the game can be a vehicle for discipline and the creation of dysfunctional patterns in workgroups as well as learning. In summary, the outsider perspective could, as in this study, provide alternative perspectives on simulations, providing new insights and ideas, for research as well as practice.
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Rex, Thomas, and Hooper Elizabeth. "Simulations." Journal of Research on Computing in Education 23, no. 4 (June 1991): 497–513. http://dx.doi.org/10.1080/08886504.1991.10781978.
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Herrington, Alaina, and Joseph Tacy. "Crossing the Power Line: Using Virtual Simulation to Prepare the First Responders of Utility Linemen." Informatics 7, no. 3 (July 29, 2020): 26. http://dx.doi.org/10.3390/informatics7030026.
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Virtual reality (VR) healthcare simulation has helped learners develop skills that are transferable to real-word conditions. Innovative strategies are needed to train workers to improve community safety. The purpose of this pilot project was to evaluate the use of a VR simulation applying the International Nursing Association for Clinical Simulation and Learning (INACSL) Standards of Best Practice: SimulationSM Simulation Design with eight power line workers. Six power industry supervisors and educators assisted in facilitating three VR simulations with eight linemen participants. Kotter’s eight steps to leading change and the INACSL Standards of Best Practice: SimulationSM Simulation Design were utilized in working with energy leaders and VR developers to carry out this pilot project. Pre- and post-implementation surveys demonstrated a 28% improvement in participants’ learning outcomes. All three learning objectives were met. This project demonstrated the successful application of a translational framework and the INACSL Standards of Best Practice: SimulationSM in a VR context in the power industry. This process may be helpful to guide or inspire further adoption of VR in unconventional settings.