It is proposed a method for operational planning and re-planning of telecommunication aeroplatform network topology that allows through the optimal placement of drones in space to create such a network structure, which has a large throughput. It is proposed a method for the rapid deployment of telecommunication aeroplatform networks that allows using wireless sensor networks quickly gather data about the current coordinates of mobile subscribers and through a specially designed remote control devices to direct the position of unmanned aerial vehicles to achieve the desired throughput.

The proposed recommendations for implementing constructive signal code constructions in modems used in radio relay and satellite communications. Developed documentation support for implementation of the proposed modems in the production process of PJSC "ELMIZ."

Іn this paper a new approach to the basic parameters choice of controlled spherical liquid friction supports spatial mechanisms using the Monte Carlo method is developed. A jet system adjusts the position of the sphere by changing the hydrodynamic resistance to flow at the exit slit hydrostatic, or combined balloon aerohydrostatic spherical bearings.

Designed and implemented technology of nanoporous silicon. A basic principles and criteria of structural and technological parameters of photovoltaic cells combined type of inversion channel (value embedded positive charge in the dielectric, the density of surface states at the insulator-semiconductor boundary, the depth of electron-hole transition doping level domains base and emittera).

The methodical basis is developed for calculations of the acoustic thermometer and experimental check is carried out it.

The electrochemical behavior of steel in a model of contact water heating was investigated. It was shown that the increase in temperature, carbon dioxide concentration, the application of stirring lead to an increase in corrosion rate, which is not inhibited in time unlike corrosion in the water with natural CO2 content. The dependence of pH on the concentration of CO2 was established, which is the main corrosion factor.

Chemical composition and microscopic structure of stems of representatives of non-wood plant raw material were established, which allowed to prove the feasibility of processing them into production of pulp and paper, pharmaceutical and woodworking industries. Influence of main technological parameters (concentration, temperature and chemicals consumption) of obtaining pulp on quality indexes (yield, content of residual lignin, physical and mechanical properties) was studied. This allowed calculating adequate regression equations using mathematical methods of planning experiment.

The new going is developed near the evaluation of exactness of results of measurings by the evaluation of their vagueness. This approach differs from the known (existing) evaluations of exactness of measurings, which it was assumed at, that constituents had normal distribution, which does not depend on the type of distributing of constituents, influencing on a result. For this purpose as an initial size the function of belonging, the special case of which is probability, which interval estimations, uniting subjective and experimental information, were got at, was utillized.

The purpose of the work is to improve, develop and create new effective methods and procedures of constructing and evaluating the effectiveness of cryptographic attacks with additional data on information security systems, obtaining estimates of information security systems resistance against such attacks, as well as new methods for determining directions and ways to improve hardware and software implementations of IT-security algorithms that take into account the latest attacks that use side channel information, failures data, the performing time of some operations, energy consumption and

The object of research is the directed crystallization partly of semitransparent materials from melt. The subject of research is mathematical models of radiation-conductive and radiation-convective heat exchange. Mathematical models and techniques of numeral solution of tasks of ra-diation-convective heat exchange are worked out taking into account influence of impurities in melt on an asorptance and selectivity of optical properties of semitransparent crystal and melt.