The experimental sample of a new device for objective diagnosis of human hearing is developed - a broadband acoustic ear echo-spectrometer.
The theory of analysis and synthesis of adaptive electromechanical systems with vector-controlled electrical motors is developed and generalized. Proposed theory allows synthesizing automatic control systems with the properties of robustness to electrical motor parameters variations, thereby improving their dynamic performances and efficiency. Methods for robust adaptive estimation of immeasurable coordinates and identification of unknown parameters of electromechanical converters are developed.
Scientific work is devoted to experimental research, aimed at improving the efficiency of contact heat and mass transfer units by increasing the interfacial surface of heat and mass transfer during the liquid spraying by centrifugal nozzles, implementation of which results in significant savings of material and energy resources.
Development of technology and diagnostic equipment, low-frequency electromagnetic therapy and high-frequency electrosurgery for equipping stationary and mobile medical centers. An improved experimental sample of multichannel lowfrequency physiotherapy equipment has been developed. The device is an open type instrument capable of working with a wide range of different inductors in the frequency range from 1 Hz to 20 kHz and the intensity of the magnetic field in two ranges of 1...50 mTl and 10...500 mTl.
Physical and technological problems of creation of optical radiators and photodetectors, which use the phenomenon of electrical breakdown for its application in optical-electronic devices, are investigated. The usage of silicon carbide with its super-unique properties allows to solve the actual problem of creating of radiation stable, high temperature element basis for the systems of atomic industry, nuclear energy, military and space techniques.
A theory is developed for the reflection of spin waves from periodic modulated ferromagnetic structures with complex interfaces, taking into account the generalized boundary conditions including the inhomogeneous character of the contact boundaries of two homogeneous media formed as a result of the superposition of crystal lattices of two contacting
The work is aimed at creation of high-efficiency heat regenerators of gas turbine units (GTU) of the gas transportation system of Ukraine. It is proposed to use highly effective heat exchange surfaces from the tubes of the spiral corrugated profile with high heat and aerodynamic characteristics for heat regenerators GTU, which will ensure a reduction of mass-dimensions by 30- 40% in comparison with heat exchangers made of smooth round tubes and an increase in the KPD GTU from 18-25% to 38-41%.
Full-scale development in Ukraine of a huge potential for energy saving due to the utilization of the heat of exhaust gases of industrial power and technological units that use hydrocarbon fuels is impossible without deep cooling of these gases in condensing heat exchangers.
The newest method of manufacturing a dry magnetite biosorbent (MBS) on the basis of Saccharomyces cerevisiae yeast was developed using a magnetic fluid with a magnetic susceptibility sufficient to effectively remove the iosorbent from the liquid stream contaminated by heavy metal ions, high-gradient magnetic separators (HGMS), whose efficiency is determined by the structure of high-gradient ferromagnetic matrixs (HGFM). The obtained results showed
