V. V. Kolesov

Creation and physical properties of the molybdenum-containing polyethylene-based nanomaterials

The thermal decomposition of molybdenum carbonyl is employed for the creation of the composite nanomaterial that represents molybdenum-containing nanoparticles stabilized in the high-pressure polyethylene matrix. The resulting nanomaterials are studied using the transmission electron microscopy, X-ray phase analysis, and electron paramagnetic resonance. The experiments show that the Mo-containing nanoparticles have a mean size of 3–5 nm and consist of several components (Mo, MoC, MoO3, and MoO2). The concentration dependences of the electrophysical properties of the synthesized nanomaterials are analyzed.

Coding and Processing of Graphic Information in Telecommunicational Networks

The method for the graphic information processing allowing coding the contour images by means of complex numbers uniquely defined by form of the image and solving problems of the recognition: identification of an object and determination of figure orientation on the plane was developed.

The study of chaotic algorithm characteristics using fractal analysis methods

The investigation methods of chaotic algorithm characteristics on the basis of fractal analysis has been proposed.

Electrical model of semiintegrator

This paper proposes the electrical semiintegrator microstrip design with distributed resistive-capacitive constants.

Coding and processing of graphic raster information in telecommunications technologies

A method of processing graphical information, allowing coding any contour images by using complex numbers explicitly determined by a form of image and solving problems of objectpsilas identification and recognition in the presence of noise was developed.

Elements of Fractal Radiosystems

This paper proposes the design of wideband elements of fractal radio systems.

Numerical Simulation of Irregular-Fractal based Antennas

The new design of multiband fractal antenna with irregular shape using two-dimensional pseudorandom fractal clusters is proposed. The multiband behavior of fractal-cluster based antennas is studied by means of numerical analysis. The spatial-frequency antenna characteristics are studied under feeding point displacements

Radio Absorption Materials on the Basis of Filled Polymers

Radio absorption materials on the basis of polymeric technologies are designed. Considered in this paper are the absorption parameters of three types of the polymeric materials filled by metallic soft magnetic materials, which are broadly applicable in radio electronic equipment

The chaotic encoding algorithm on the basis of two-dimensional mapping

The structure of the phase space of the discrete encoding algorithm with two-dimensional (2D) mapping and delay was investigated. It was shown that the sequences formed by the algorithm have statistical attributes satisfying the requirements made for encoding signals for digital telecommunication systems.

The chaotic encoding algorithm with two delay parameters

By numerical methods the investigation and comparison of the statistical properties of pseudo-random sequences formed by the discrete Fibonacci-type algorithm with one and two parameters of delay for a digital system of communication were carried out.