Most viewed papers

491. Shovin V.A.
     Confirmatory factor model of hypertension
     Computer Research and Modeling, 2012, v. 4, no. 4, pp. 885-894

     A new method of constructing orthogonal factor model based on the method of correlation pleiades and confirmatory factor analysis. A new algorithm for confirmatory factor analysis. Based on an original method built factor model of hypertension the first stage. The analysis of correlations and indices of arterial hypertension.

     Keywords: hypertension, pleiad of correlation, confirmatory factor analysis.
     Views (last year): 2. Citations: 7 (RSCI).
492. Pogorelova E.A., Lobanov A.I.
     High Performance Computing for Blood Modeling
     Computer Research and Modeling, 2012, v. 4, no. 4, pp. 917-941

     Methods for modeling blood flow and its rheological properties are reviewed. Blood is considered as a particle suspencion. The methods are boundary integral equation method (BIEM), lattice Boltzmann (LBM), finite elements on dynamic mesh, dissipative particle dynamics (DPD) and agent based modeling. The analysis of these methods’ applications on high-performance systems with various architectures is presented.

     Keywords: blood, hemodynamics, nonnewtonian fluid, red blood cells, high performance computing.
     Views (last year): 2. Citations: 3 (RSCI).
493. Vinogradova P.V., Zarubin A.G., Samusenko A.M.
     Galerkin–Petrov method for one-dimensional parabolic equations of higher order in domain with a moving boundary
     Computer Research and Modeling, 2013, v. 5, no. 1, pp. 3-10

     In the current paper, we study a Galerkin–Petrov method for a parabolic equations of higher order in domain with a moving boundary. Asymptotic estimates for the convergence rate of approximate solutions are obtained.

     Keywords: initial boundary value problem, parabolic equation, Galerkin–Petrov method, convergence, convergence rate.
     Views (last year): 2.
494. Zhуkharevуch V.V., Shumуlyak L.M., Strutinskaja L.T., Ostapov S.E.
     Construction and investigation of continuous cellular automatа model of heat conductivity processes with first order phase transitions
     Computer Research and Modeling, 2013, v. 5, no. 2, pp. 141-152

     The process of heat conduction, accompanied by the first order phase transitions is discussed in this article. Using cellular automates simulation was investigated class of problems that have broad application in practice. In this paper we calculate the temperature distribution in the depth of the soil at different times for a problem of freezing of moist soil. Another task — zone growing — has been modeled by cellular automates too. The coincidence of real and modeling parameters of the system confirms the feasibility of using the selected method of modeling of physical processes.

     Keywords: first order phase transition, a cellular automaton, the thermal conductivity.
     Views (last year): 2. Citations: 2 (RSCI).
495. Koltsov Y.V., Boboshko E.V.
     Comparative analysis of optimization methods for electrical energy losses interval evaluation problem
     Computer Research and Modeling, 2013, v. 5, no. 2, pp. 231-239

     This article is dedicated to a comparison analysis of optimization methods, in order to perform an interval estimation of electrical energy technical losses in distribution networks of voltage 6–20 kV. The issue of interval evaluation is represented as a multi-dimensional conditional minimization/maximization problem with implicit target function. A number of numerical optimization methods of first and zero orders is observed, with the aim of determining the most suitable for the problem of interest. The desired algorithm is BOBYQA, in which the target function is replaced with its quadratic approximation in some trusted region.

     Keywords: optimization methods, electrical energy technical losses, distribution networks, BOBYQA.
     Views (last year): 2. Citations: 1 (RSCI).
496. Risnik D.V., Levich A.P., Bulgakov N.G., Bikbulatov E.S., Bikbulatova E.M., Ershov Y.V., Konuhov I.V., Korneva L.G., Lazareva V.I., Litvinov A.S., Maksimov V.N., Mamihin S.V., Osipov V.A., Otyukova N.G., Poddubnii S.A., Pirina I.L., Sokolova E.A., Stepanova I.E., Fursova P.V., Celmovich O.L.
     Searching for connections between biological and physico-chemical characteristics of Rybinsk reservoir ecosystem. Part 2. Determination analysis
     Computer Research and Modeling, 2013, v. 5, no. 2, pp. 271-292

     Based on contents of phytoplankton pigments, fluorescence samples and some physico-chemical characteristics of the Rybinsk reservoir waters, searching for connections between biological and physicalchemical characteristics is working out. The methods of describing of connections between qualitative classes of characteristics, based on forecast of quality values of one characteristics by quality values of another one, are studied. The borders of quality classes of studied characteristics are found.

     Keywords: fluorescence, phytoplankton, pigments, chlorophyll, Wallis coefficient, Guttman coefficient, Chesnokov coefficient, searching for connection, Rybinsk reservoir.
     Views (last year): 2. Citations: 3 (RSCI).
497. Zelenkov G.A., Sviridenko A.B.
     Approach to development of algorithms of Newtonian methods of unconstrained optimization, their software implementation and benchmarking
     Computer Research and Modeling, 2013, v. 5, no. 3, pp. 367-377

     The approach to increase efficiency of Gill and Murray's algorithm of Newtonian methods of unconstrained optimization with step adjustment creation is offered, rests on Cholesky’s factorization. It is proved that the strategy of choice of the descent direction also determines the solution of the problem of scaling of steps at descent, and approximation by non-quadratic functions, and integration with a method of a confidential vicinity.

     Keywords: information technology, algorithm, Newton's method.
     Views (last year): 2. Citations: 7 (RSCI).
498. Rakcheeva T.A.
     Criteria and convergence of the focal approxmation
     Computer Research and Modeling, 2013, v. 5, no. 3, pp. 379-394

     Methods of the solution of a problem of focal approximation — approach on point-by-point given smooth closed empirical curve by multifocal lemniscates are investigated. Criteria and convergence of the developed approached methods with use of the description, both in real, and in complex variables are analyzed. Topological equivalence of the used criteria is proved.

     Keywords: curves, approximation, lemniscates, foci, criterion of curves nearness, basic, shape, invariant, algorithm, freedom degrees.
     Views (last year): 2.
499. Maksimova M.Z., Barbin N.M.
     Modeling of evacuation of people of various age groups
     Computer Research and Modeling, 2013, v. 5, no. 3, pp. 483-490

     The program for an assessment of an estimated time of evacuation with possibility of a choice of age group of people is offered and tested. Influence of age structure of groups of people on results of calculation is investigated.

     Keywords: modeling of a stream of people, estimated time of evacuation, age groups of people.
     Views (last year): 2. Citations: 2 (RSCI).
500. Novikova O.B.
     Fractal spline as a model of fractal functions for fractal signals generation
     Computer Research and Modeling, 2013, v. 5, no. 4, pp. 583-587

     This paper presents a method for obtaining fractal signals using fractal splines similar to signals generated by fractal functions. The hypothesis about the identity of discrete fractal functions and linear fractal splines is justified. There are considered the features of planning matrix calculation of cumulative fractal spline, examples of generated curves are shown.

     Keywords: fractal function, fractal spline, fractal signal.
     Views (last year): 2.

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