An analytical solution of the boundary problem describing scattering of an electromagnetic field of
the electric dipole on the bi-isotropic ball is constructed. An influence of some parameters of the problem on the value of the directivity pattern of the electric field is studied by a numerical simulation.

A analytical algorithm for calculation of the effective material parameters of matrix composites consisting of the magnetodielectric matrix and a randomly distributed system of spherical particles is considered. The effective parameters of composites of different types materials such as biisotropical, conducting, nanodimensianal, with lag time and relaxation factor of medium are investigated. Graphical material of computational experiments is presented.

Controlled Random Tests and methods for their generation have been analyzed and investigated. The similarities of all known controlled random testing approaches are shown. A new method and algorithm for Multiple Controlled Random Tests have been proposed and analyzed.

This research is devoted to the creation of a finite element model of a dry welding box for repairing core oil platform taking into account operational loads.

A method for comparison of different SAR image filtration techniques is presented. It allows selecting the filters with better speckle noise smoothing effect. Unlike the known approaches, the presented method is based on ENL parameter calculation for automatically selected areas.

A model of text image detector based on a convolutional neural network architecture is presented, capable of synthesizing high-level features of images in the «black box» mode. An implementation of the detector application, based on algorithms of multi-scale scanning and local responses interpretation is described, allowing to find out text samples on images of real scenes. Advantages in comparison with analogs are shown and efficiency evaluation on an example of a known database is conducted.

Three versions of a histogram algorithm for tracking objects on video sequences made by an unstable camera are presented. Local color 1D-histograms of pixels and local color 2D-histograms of pairs of adjacent pixels are used in all versions as region features. The histograms are compared by the Bhattacharia criterion. А parallel computing platform CUDA, developed to program GPUs, allows creation of real time or near-real time program realizations of the offered versions. Results of comparison of the versions with the known mean shift algorithm and correlation type algorithms are also presented. It is shown by experiments that the versions are more accurate and reliable than the mean shift algorithm, which estimates similarity of linear approximations of local histograms, and more robust with respect to the video quality than the correlation algorithms.

This paper is dealing with the problem of content-based image retrieval using color co-occurrence matrices. It is well-known that there are a number of factors influencing the results of image retrieval. The specific contribution of this paper lies on quantitative assessment of the effect of spatial image distortions as well as on estimating the accuracy of retrieving original images using its fragments of different size as query examples. The presented study is capitalized on database containing 10 000 color RGB images of very different content. The necessary experimental results are provided.

Paper addresses a number of scientific papers devoted to the issues of programming languages close to natural languages. Description of classical approaches to the design of natural programming languages and new approaches that have made the development of these languages practical is given. One of the high-level languages – CLIPS – is compared with natural programming languages. A monograph in Russian devoted to the natural language interfaces is reviewed.

The article provides a survey of the existing regulatory framework for information security risk
management. Practical methods for information security risk and vulnerability assessment are proposed.

A formula is suggested to evaluate the area of a logical circuit that is built in a given library of logical elements according to the BDD (Binary Decision Diagram) representation of a system of Boolean functions. The experimental results of synthesis of combinational logical circuits from the minimized BDD representations in the design library of custom CMOS VLSI circuits are described.

The problem of a race free state assignment of an asynchronous automaton is considered. A method for the state assignment is suggested that provides the minimization of the number and the
switching activity of the memory elements along with the elimination of the critical races between
them.