IKBFU's Vestnik

2011 Issue №10

Computer simulation of synthesis processes in NiO—Al system

Abstract

Features of physical and chemical conversions in the reacting powder system NiO-Al were investigated by computer simulation methods.. Multivariability of the synthesis of nickel aluminides in powder systems with varying degrees of concentration inhomogeneity is taken into account. The estimates of the state parameters of reacting system at all stages of physical and chemical transformations was obtained.

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Mathematical modeling of a injury of a backbone

Abstract

A plenty of proceedings of various disciplines fundamental and applied science is devoted to studying of vertebral damage. The special role in studying this pathology is played with methods of mathematical modelling since allow to predict development of adverse deformations of a backbone and to optimize methods of elimination of these damages. Using mathematical model three-vertebra a complex the algorithm of surgical treatment of typical spinal damages is developed.

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Results of simulating of instabilities of the equatorial F-layer of the ionosphere

Abstract

The results of numerical experiments of the dynamic ionospheric bubbles in the equatorial F-region are described. Generation bubbles by gravitational waves is investigated. A trigger mechanism of generation bubbles in F-layer by clouds in E-layer is studied. Influences of a conductivity of the E-layer on dynamics of bubbles are considered. It is shown that in the bubbles the molecular ions NO+ effectively transported to the higher altitude. The possibility of the formation of isolated bubbles at the altitude above the maximum of F-layer is founded. Parameters of thermal mode of three-dimensional bubbles are presented. The morphology of a multi-bubble system are researched.

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Multiple-factor mathematical models of heterogeneous metasystems

Abstract

Nonlinear mathematical modeling of physical processes in heterogeneous metasystems with bubble or a solid-state filler allows to receive the parities convenient for numerical calculations and comparison of theoretical results with the data of experiments. For creation of almost effective models certain offers concerning the top and bottom borders of the sizes of a filler, their distribution and concentration, the dipolar moments, character and results of interpartial interaction are formulated.

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