This article discusses various configurations of dielectric inhomogeneous waveguides in the microwave range, discusses the results of computer electrodynamic modeling of the proposed configurations of structures with periodic inhomogeneities. During the simulation, the geometric and electrophysical parameters of the periodic structure were varied in order to identify their influence on the characteristics of the proposed sensor to determine the properties of liquid dielectric media.

Keywords: dielectric waveguide, Bragg reflection, dielectric constant, reflection coefficient

The article examines the relevance of the study of new coatings, with the possibility of controlling their characteristics. At the beginning of the article, we review the available methods for creating frequency-selective surfaces. Next, the created controlled frequency-selective surfaces are considered. The same is said about the construction of the created surfaces. At the end of the article, an analysis is made of the results obtained on the study of controlled frequency-selective surfaces, a comparison with previously obtained results.

Keywords: control, frequency-selective surface, microwave, radio-absorbing material

The article describes the results of simulation of a five-channel inverter with scalar control the motor speed. Briefly describes the principles of a scalar control, the structure of the five-channel inverter, as well as five-channel method of controlling the inverter using the method of double-zero sequence voltage (DZV). The structure of the model and the simulation results, confirming the possibility of using a five-channel inverter with scalar control the motor speed is considered.

Keywords: motor, speed control, scalar control, five-channel inverter, Simulink

This paper considers the problem of constructing the architecture of the mobile training complex of the  loading/unloading machine, which includes a crane and crane control. The work was supported by the Russian Ministry of Education (contract № 13.G25.31.0093) as part of the RF Government Regulation № 218 "On measures of state support for the development of cooperation of Russian higher education institutions and organizations implementing complex projects on high-tech production"

Keywords: Computer training complex, architecture, control, crane