Filters








191,862 Hits in 4.7 sec

Cycle time of a P-time Event Graph with affine-interdependent residence durations

Philippe Declerck
2013 Discrete event dynamic systems  
24 Titre de la revue Discrete Event Dynamic Systems ISSN 0924-6703 Résumé en anglais algebraic model.  ...  Cycle Time of a P-time Event Graph with Affine-Interdependent Residence Durations Submitted byMarie-Françoise... on Tue, 12/16/2014 -17:18 In this paper, we widen the class of P-time Event graphs by  ... 
doi:10.1007/s10626-013-0173-3 fatcat:z534c3ks5naqzpjr4powjwjz7a

Modeling dynamics of cell population molecule expression distribution

D. Milutinović, J. Carneiro, M. Athans, P. Lima
2007 Nonlinear Analysis. Hybrid Systems  
to population dynamics.  ...  These receptors are essential for the antigen recognition and the regulation of the immune system. The results are illustrated with examples and validated with real data.  ...  The symbol ε is introduced to describe no event, which means that the discrete state is not changing. The T-cell hybrid system model (Fig. 2 ) is a deterministic model.  ... 
doi:10.1016/j.nahs.2006.04.003 fatcat:cwbcoh3dczculfmifmvgtqjbf4

Parallel and Distributed Spatial Simulation of Chemical Reactions

Matthias Jeschke, Alfred Park, Roland Ewald, Richard Fujimoto, Adelinde M. Uhrmacher
2008 2008 22nd Workshop on Principles of Advanced and Distributed Simulation  
We discuss requirements imposed by this application on a parallel discrete event simulation engine to achieve efficient execution.  ...  First results of combining NSM and the grid-inspired simulation system AURORA are shown. 22nd Workshop on Principles of Advanced and Distributed Simulation  ...  [17] , cannot easily be transferred to discrete event approaches. l Figure 1 . Discretization of a volume into smaller sub-volumes with side length l.  ... 
doi:10.1109/pads.2008.20 dblp:conf/pads/JeschkePEFU08 fatcat:jzsqtvpytba2tkujfxd74cqq2q

A Discrete Event Based Stochastic Simulation Platform for 'In silico' Study of Molecular-level Cellular Dynamics

Simon Daefler
2012 Journal of Biotechnology & Biomaterials  
In this work, we present a discrete event based stochastic modeling approach for studying the molecular dynamics of cells.  ...  In this approach, a biological process is modeled as a collection of interacting functions driven in time by a set of discrete events.  ...  volumes Event-driven CME http://mesord.sourgeforge.net Our Simulator Stochastic modeling of discrete events Compartmental Event driven discrete time steps Based on CME, explicit models Event-time distributions  ... 
doi:10.4172/2155-952x.s6-001 fatcat:frwma7psk5bcffhmns7mtnpqgq

retQSS: A Novel Methodology for Efficient Modeling and Simulation of Particle Systems in Reticulated Geometries [article]

Lucio Santi, Joaquín Fernández, Ernesto Kofman, Rodrigo Castro
2021 arXiv   pre-print
On the modeling side, retQSS relies on the standardized Modelica modeling language, yielding compact and elegant specifications of hybrid (continuous/discrete) dynamic systems.  ...  On the simulation side, retQSS profits from the discrete-event nature of Quantized State System (QSS) methods, which enable efficient particle tracking algorithms that are agnostic of the application domain  ...  event implementations [17] .  ... 
arXiv:2006.05495v2 fatcat:dyqxujllfbeqhjyrkbc3kqcoy4

Comparing Three Simulation Model Using Taxonomy: System Dynamic Simulation, Discrete Event Simulation and Agent Based Simulation

Suliza Sumari, Roliana Ibrahim, Nor Hawaniah Zakaria, Amy Hamijah Ab Hamid
2013 International Journal of Management Excellence  
In this paper we discuss about three different models used in simulation: system dynamic, agent based simulation and discrete event simulation.  ...  Simulation model is one of the methods commonly used in Operational Research in order to represent the real situation that occurs in a system as well as to test the scenario based on different behavior  ...  dynamics (SD) Discrete event simulation (DES) Agent based simulation (ABS) Features  ... 
doi:10.17722/ijme.v1i3.9 fatcat:peksxxynofa4hn3dz3xswhfrfu

A Novel Dynamic Approach for Risk Analysis and Simulation Using Multi-Agents Model

Hassan Kanj, Wael Hosny Fouad Aly, Sawsan Kanj
2022 Applied Sciences  
This paper proposes a novel dynamic approach to model such stochastic systems using Dynamic Fault Trees (DFT).  ...  Static risk analysis techniques (SRATs) use event graphs and risk analysis assessment models.  ...  Discrete Event Models In contrast to continuous models, for a discrete event system (DES), ref.  ... 
doi:10.3390/app12105062 fatcat:pywtqxf5w5dp3py5y72g5b3sem

Chaos in discrete production systems?

2002 Journal of manufacturing systems  
Realistic, non-artificial discrete-event models of discrete production systems that show chaotic behavior were not found in this study.  ...  This case reveals the possibilities and limitations of the application of chaos theory to discrete-event models of production systems.  ...  In Section 3, the theory of chaos in dynamic systems is applied to small discrete-event models of production systems.  ... 
doi:10.1016/s0278-6125(02)80142-x fatcat:fko4yyp2enhvbh4cypheachd24

Chaos in discrete production systems?

J.P.M. Schmitz, D.A. van Beek, J.E. Rooda
2002 Journal of manufacturing systems  
Realistic, non-artificial discrete-event models of discrete production systems that show chaotic behavior were not found in this study.  ...  This case reveals the possibilities and limitations of the application of chaos theory to discrete-event models of production systems.  ...  In Section 3, the theory of chaos in dynamic systems is applied to small discrete-event models of production systems.  ... 
doi:10.1016/s0278-6125(02)80164-9 fatcat:ztf6gl6qcrfpppze7bgbvowuta

Professor Vicenţiu Rǎdulescu celebrates his sixtieth anniversary

Hugo Beirão da Veiga, Marius Ghergu, Alberto Valli
2019 Discrete and Continuous Dynamical Systems. Series S  
Last but not least, the guest editors thank the Editor-in-Chief, Professor Alain Miranville, for hosting our special issue on the Discrete and Continuous Dynamical Systems Series S journal. the Editors-in-Chief  ...  We also point out his impressive activity as editor of volumes or special issues such as [23] , [31] , [32] .  ... 
doi:10.3934/dcdss.201902i fatcat:ijclqhx5pjbvfhavjqbiai6wdm

Length scale dependence of dynamical heterogeneity in a colloidal fractal gel

A Duri, L Cipelletti
2006 Europhysics letters  
We use time-resolved dynamic light scattering to investigate the slow dynamics of a colloidal gel.  ...  We quantify the dynamical fluctuations resulting from intermittency by means of the variance χ(τ,q) of the instantaneous autocorrelation function, the analogous of the dynamical susceptibility χ_4 studied  ...  ] [16] [17] 24] .  ... 
doi:10.1209/epl/i2006-10357-4 fatcat:4miutzu6o5goboce7hdb5yyuyy

Computational Fluid Dynamics (CFD) simulation of liquid column separation in pipe transients

H.A. Warda, E.M. Wahba, M. Salah El-Din
2020 Alexandria Engineering Journal  
The present study deals with the computational simulation of transient events of water hammer and column separation in a water pipeline system.  ...  The Volume of Fluid (VOF) model and Schnerr-Sauer cavitation model are used to describe the multiphase flow and the transient vaporous cavitation, respectively.  ...  Localized vapor cavity may form at a pipe boundary (e.g., closed valve) or at high points along the pipe which grows and diminishes according to the dynamics of the system.  ... 
doi:10.1016/j.aej.2020.05.025 fatcat:u4c5q2i6ejdzrdbqkdik7xgr5i

Proper time and Minkowski structure on causal graphs

Thomas Filk
2001 Classical and quantum gravity  
The scale where the change from "volume" to "length" occurs is related to the size of a dynamical clock and defines a natural cut-off for this type of clock.  ...  By changing the cut-off volume we may probe the geometry of the causal graph on different scales and therey define a continuum limit.  ...  A clock is a physical system which takes part in the dynamics and which allows to identify and count a characteristic time scale.  ... 
doi:10.1088/0264-9381/18/14/311 fatcat:6pjehzxr2zcfdbork5jncva6cq

Universality Class of Nanocrystal Plasticity: Localization and Self-Organization in Discrete Dislocation Dynamics

Hengxu Song, Dennis Dimiduk, Stefanos Papanikolaou
2019 Physical Review Letters  
We perform simulations of a two-dimensional discrete dislocation dynamics model that minimally captures the phenomenology of nanocrystalline deformation.  ...  these systems is different.  ...  In these small volumes, the material strength is size-dependent due to strain gradients [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] generated due to the absence of typical gradient-free dislocation  ... 
doi:10.1103/physrevlett.122.178001 fatcat:f5csabaf6bgrlep45e3cgjni5e

Holding time estimation for reactions in stochastic event-based simulation of complex biological systems

Preetam Ghosh, Samik Ghosh, Kalyan Basu, Sajal Das
2008 Simulation modelling practice and theory  
The main requirement 13 for this technique is the event time models for the discrete events of the biological system.  ...  10 The complexity of biological systems motivate the use of an "in silico" stochastic discrete event simulation methodol-11 ogy.  ...  Our goal is to build a stochastic discrete event-based framework 93 for complex biological systems [12,11] that can be easily used for modeling the dynamics of complex pathways, 94 complete single cell  ... 
doi:10.1016/j.simpat.2007.09.002 fatcat:r34bzwv3gncxbmillxi5d6itwm
« Previous Showing results 1 — 15 out of 191,862 results