Результаты поиска по 'simulations':
Найдено статей: 344
  1. Korenkov V.V., Nechaevskiy A.V., Ososkov G.A., Pryahina D.I., Trofimov V.V., Uzhinskiy A.V.
    Synthesis of the simulation and monitoring processes for the development of big data storage and processing facilities in physical experiments
    Computer Research and Modeling, 2015, v. 7, no. 3, pp. 691-698

    The paper presents a new grid and cloud services simulation system. This system is developed in LIT JINR, Dubna, and it is aimed at improving the efficiency of the grid-cloud systems development by using work quality indicators of some real system to design and predict its evolution. For these purpose, simulation program is combined with real monitoring system of the grid-cloud service through a special database. The paper provides an example of the program usage to simulate a sufficiently general cloud structure, which can be used for more common purposes.

    Keywords: grid computing, cloud computing, data storage, monitoring, optimization, simulation.
    Views (last year): 4. Citations: 6 (RSCI).
  2. Shefov K.S., Stepanova M.M.
    An implementation of a parallel global minimum search algorithm with an application to the ReaxFF molecular dynamic force field parameters optimization
    Computer Research and Modeling, 2015, v. 7, no. 3, pp. 745-752

    Molecular dynamic methods that use ReaxFF force field allow one to obtain sufficiently good results in simulating large multicomponent chemically reactive systems. Here is represented an algorithm of searching optimal parameters of molecular-dynamic force field ReaxFF for arbitrary chemical systems and its implementation. The method is based on the multidimensional technique of global minimum search suggested by R.G. Strongin. It has good scalability useful for running on distributed parallel computers.

    Keywords: numerical simulation, molecular dynamics, reactive force field, chemically reactive systems, parameter optimization, parallel algorithm, absolute extremum search.
    Views (last year): 1. Citations: 1 (RSCI).
  3. Degtyarev A.B., Yezhakova T.R., Khramushin V.N.
    Algorithmic construction of explicit numerical schemes and visualization of objects and processes in the computational experiment in fluid mechanics
    Computer Research and Modeling, 2015, v. 7, no. 3, pp. 767-774

    The paper discusses the design and verification stages in the development of complex numerical algorithms to create direct computational experiments in fluid mechanics. The modeling of physical fields and nonstationary processes of continuum mechanics, it is desirable to rely on strict rules of construction the numerical objects and related computational algorithms. Synthesis of adaptive the numerical objects and effective arithmetic- logic operations can serve to optimize the whole computing tasks, provided strict following and compliance with the original of the laws of fluid mechanics. The possibility of using ternary logic enables to resolve some contradictions of functional and declarative programming in the implementation of purely applied problems of mechanics. Similar design decisions lead to new numerical schemes tensor mathematics to help optimize effectiveness and validate correctness the simulation results. The most important consequence is the possibility of using interactive graphical techniques for the visualization of intermediate results of modeling, as well as managed to influence the course of computing experiment under the supervision of engineers aerohydrodynamics– researchers.

    Keywords: tensor mathematics, large particles, fluidmechanics, computational experiment, design, verifying Citation:.
    Views (last year): 1.
  4. Kovalenko S.Yu., Bratus A.S.
    The Task of Search Viable Therapy Strategy for a Mathematical Spatial Cancer Model
    Computer Research and Modeling, 2013, v. 5, no. 4, pp. 749-765

    This paper is devoted to the analysis of the partial mathematical model describing the process of growth and spread of malignant and normal cells under the influence of chemotherapy. We found the periodic therapy regime, conditions the existence of this regime and suggest the search algorithm of this regime. This paper also includes the examples of simulation and the set of parameter values.

    Keywords: viable task, glioma, periodic therapy regime.
    Views (last year): 1.
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