Energy-efficient methods and means of electrotechnologies for the ultrapure copper smelting in domestic induction installations

New methods and means of mathematical modelling of induction melting processes of copper have been developed. They consist in simultaneous consideration of nonlinear properties of materials and features of three-dimensional geometry of elements of the electrotechnical complex. Means of mathematical modelling of three-dimensional inhomogeneous electromagnetic and thermal fields with strong interconnections, arising in the elements of the electrical complex in the process of induction melting of ultrapure copper and the manufacture of wire rod from it, have been developed.

Energy-efficient methods and means of electrotechnologies for the ultrapure copper smelting in domestic induction installations

New methods and means of mathematical modelling of induction melting processes of copper have been developed. They consist in simultaneous consideration of nonlinear properties of materials and features of three-dimensional geometry of elements of the electrotechnical complex. Means of mathematical modelling of three-dimensional inhomogeneous electromagnetic and thermal fields with strong interconnections, arising in the elements of the electrical complex in the process of induction melting of ultrapure copper and the manufacture of wire rod from it, have been developed.

Development and research of heat dissipation means from high power transmission modules for antenna systems of perspective radars.Development and research of heat dissipation means from high power transmission modules for antenna systems of perspective ra

About 70 to 75% of the energy consumed by the elements of transmit modules (TM) for active phased antenna arrays (APAA) is converted into heat. This heat, if dissipated inefficiently, can cause the element base to overheat, thus reducing the reliability of the radar. The task of ensuring the normal thermal regime of TMs for APAAs is complicated by the large-scale integration of electronic components inside the TMs.

Heat transfer and fluid dynamics in miniature two-phase heat transfer systems

For the first time a comprehensive study of the processes of heat transfer and hydrodynamics during evaporation and condensation in closed miniature two-phase systems was carried out. The regularities of the influence of geometric and regime factors on the thermal resistance and maximum heat fluxes of miniature heat pipes, thermosyphons and pulsating capillary heat pipes are revealed. The physical model of heat exchange processes in the conditions of limited space at application as heat carriers of ordinary liquids and nanofluids is developed and presented.

Interaction of spin waves and spin-polarized current with magnetic inhomogeneities in nanostructured ferromagnetic materials

A theory is developed for the propagation of spin waves in heterogeneous ferromagnetic systems. The theory provides for the generation of spin waves using a spin-polarized current and control of the process of propagation of spin waves in such media. In particular, the mechanism of excitation of dipole-exchange spin waves in a multilayer ferromagnetic nanosystem is presented.

Research of biosorbents with natural ferrimagnetic properties for water purification

The aim of the project is to substantiate and develop theoretical and experimental scientific principles of technology of natural and artificial magnetic labeling of microorganisms and fungi from BMN for water purification. As a result of the research, potential producers of BMN were identified among microorganisms from BMN (bacteria, microalgae) and fungi used for water purification. Systematized microorganisms from BMN (bacteria, microalgae) and fungi, in the presence or absence of crystal structure and localization of BMN formations.

Creation of remote controlled platform of mobile robot for demining of high passage and maneuverability

A concept has been developed for the creation of a small-sized universal base chassis of a robot of high cross-country ability and maneuverability, which combines minimization of the dimensions and weight of mobile robots, a reduction in production costs due to a decrease in resource and material consumption, a significant expansion of the scope of use of mobile robots in areas where traditional large-sized equipment cannot be applied , the implementation of which is based on the use of chassis kinematic schemes, providing high cross-country ability on rough terrain and in houses with the a

Biotelemetric system of centralized multi-parameter express diagnostics and monitoring of human functional state

The ideology of spatially distributed biotelemetric system of collection, processing and storage of biomedical information using the concept of Internet of Things (IoT) is developed. The system consists of personal measuring devices for registration of a set of basic vital biosignals parameters (electrocardiography (ECG), electroencephalography (EEG) photoplethysmography (PPG), impedance), multichannel central server system.

Scientific and technical basis for the construction of new over-the-horizon communication systems using relay air platforms and artificial formations

The main result is the development of the concept of scientific and technical foundations for the creation of new high-speed over the-horizon communication systems (SPZ) with variable architecture using reference stations for tropospheric communication and relay intelligent air platforms and artificial formations.

Pages