Computer Science, № 42, 2018

When constructing a Cellular Automata (CA) model of a natural process one meets a problem of determining scaling relations, i.e. the quantitative relationships between the CA dimensionless parameters and corresponding values characterizing the prototype process given in terms of a physical system of units. The problem has no general solution...

In this paper, we propose an approach to constructing the user interface to be based on the ontological description. Its advantages are pondered. The main value using the ontology is the reduced complexity and development time as well as the increased quality of resulting implementation. The requirements to a system...

This paper presents the results of mathematical modeling of the problem of elasticity theory. The problem consists in the calculation of a model problem in a two-dimensional formulation aimed at finding the displacements around a crack.

This paper presents a computer-aided simulation to calculate the heating of a tungsten plate with different crack geometries forming in the process of a pulsed thermal load. The results of model testing, numerical calculations and comparison with experimental data are presented. The dependence of the surface temperature on the location...

This paper presents the results of a research into the anisotropy factor introduced by the hexagonal structure of a cellular array in a discrete model of a gas-powder flow with an integer alphabet and a hexagonal neighborhood structure at the stage of calculating the average values of pressure and flow...

The paper proposes an efficient parallel implementation of the Ramalingam algorithm for the dynamic update of the all-pairs shortest paths of a directed weighted graph after deleting an edge. To this end, a model of associative parallel systems with vertical data processing (the STAR-machine) is used. With this model, the...

Presented in this paper are the software techniques to improve the performance of the Particle-in-Cell method for general-purpose computers equipped with processors like Intel Xeon/Nehalem or AMD Phenom. The software techniques include particle storing in cells in either fixed size array or list, field values kept together in one array...

An algorithm for tracking objects in a videostream based on the use of a hierarchical Bayesian network is proposed. A specific feature of the algorithm proposed is the use of multi-dimensional scaling, which made possible to significantly reduce the network training time. The algorithm is resistant to temporary monitored object...

In this study, the problem of the utility network design is treated by the hypernet approach according to the compatibility of different types of resources with allowance for their laying in the same track. Also, we study the reliability aspect of the designed utility network for obtaining the optimal laying...