Development of methods and techniques for optimal design of unmanned aviation complex for industrial and ecological monitoring of the environment

The work is dedicated to the development and implementation of integrated design methodologies of individual elements of unmanned aircraft systems related to the problems of ensuring the necessary tactical and technical, performance, reliability characteristics, performance and unification into a single unified methodology and a system of making design decisions in the design process.

Development and implementation of series of precision wideband system oriented AC voltage multimeter

AC voltage measurement is the most common problem in electrical quantities measurement. The AC multimeters performance analysis shows that high accuracy is achieved in a narrow band of frequencies while there is a need to improve the accuracy not only in the sound but also in the short and in the ultrasonic frequency range. Therefore, element wise additive and multiplicative error correction technique to improve the accuracy was proposed. For this purpose, measurement channel is divided into functional blocks, each of which is complemented by a feedback circuit and aback up system.

Theoretical substantiation of principles of construction of the diagnostic medical equipment and technology of its application

A modern design concept of diagnostic medical equipment based on the focusing diffractive optical elements (DOEs). There were developed new methods for the determination of boundaries and the profile of the DOE for an arbitrarily given intensity, amplitude and phase of the optical field. A new method of determining the phase and energy transformations in the DOE in different diffraction orders. We propose a method of designing multifocal intraocular achromatic DOE bifocal type.

Heat transfer and aerodynamics of complicated profiled heat transfer surfaces

In tubular recuperative heat exchangers such as "gas-gas", "gas-liquid" are mainly used heat transfer of circular tubes. However, circular tubes, as part of the heat transfer surface, in terms of improving their heat and aerodynamic performances to date have exhausted themselves. Now, technically and economically the most accessible and reasonable by reducing weight and improving energy efficiency and resource saving heat exchange equipment is application in heat exchangers surfaces that have high heat and aerodynamic efficiency, low cost and ease of production.

Fundamentals of vector-controlled alternative current electromechanical systems with rolling pair kinematics

The generalized mathematical models for the class of transport objects with vector-controlled AC motors are developed. A novel decomposition based control concept for electromechanical systems with rolling pair kinematic is presented. Control algorithms development procedure based on this concept provides a solution for the basic traction control tasks.

Hydrodynamics end Heat Transfer in Warmer of air with warm crystalization

The research of the water dispersion parameters in impact with a hard dry and wetted surface was made. Noted best water spraying at surface with high roughness. This may be due to the difficulty of the air outlet from under flat (before impact) drops during impact. The share of dispersed liquid upon impact a teardrop-shaped expanding jet ( 40% of the water flow in the jet ) with wooden batten was investigated. Also was determined the radius of scattering droplets depending on the fall height and of the water flow consumption from the nozzle.

The functional and biocompatible composition coverages formation on Ti- and Fe-alloys, with hardened by carbon nanotubes and intrusion elements, at the terms of extreme power influences

For the first time the scientific basis of a fundamentally new method of forming biocompatible (titanium alloy) coating of carbon nanotubes (CNT) in polycrystalline silicon oxide layers with nickel and iron catalytic centers are obtained by CVD for implants, dentures support-the driving apparatus of human and medical instruments were developed. For the first time a model of physical and chemical processes of the composite coatings formation under laser irradiation of CNT substrates with pre-coated with a layer of hydroxyapatite powder were proposed.

Thermal stability and operating reliability of nanosized metal films on insulators and semi-conductors

A comprehensive scientific approach to account for the "cross-effects" influence of physical and thermal deposition process parameters on structure and properties of nanoscale metal films Cu-Sn, Cu-Au, Cu-Mn, Cu-Sn-Mn, Al-Mn-Cr, Ni- Al, Ni-Au, Ti-Ag, Fe-Pt, and etc has been developed. The general regularities of diffusion processes due to subsequent thermal annealing in ultra-high vacuum, oxygen- and hydrogen containing atmosphere, ion-plasma and laser treatment have been discovered.

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