Obtained ecologically safe compounds (organic compounds from plant extracts) for the formation of a passivation layer and modification of metal surfaces that meet global trends in the concept of sustainable development of "green" chemistry and "green" economy for enterprises.
The regularity of the formation of framework materials in the LaB6-TiB2-Cu systems was Regularities of formation of frame materials in the LaB6-TiB2-Cu system are established. Establishing the influence of technological parameters of the production process in the conditions of spark-plasma sintering and surface modification of ceramic reinforced particles on the structure, mechanical and electrical properties of the refractory frame. Spark-plasma sintering by temperatures of 850 ° C-1100 ° C was obtained composites (LaB6-TiB2) -Cu, with a content of refractory compound 2.5-70 vol.%.
The main threat for increase of the Ukraine’s mobilization potential is global tendence of liberalizetion of civil-military relations. The state structures should control the population to provide the mobilization activities. Unfortunately, it is not relevant to contemporary situation in Ukraine. The most of Ukrainian youth is not ready to protect its homeland or take part in other forms of defence.
Methods of water pre-treatment before baromembrane installations in order to remove the predominant amount of salts are proposed. The technological scheme of obtaining high-quality permiate in the amount of 90-95% of the initial volume of water during its preliminary stabilization treatment has been developed. The influence of various factors on the quality and yield of permiate has been established.
This paper investigates ways to increase the efficiency of coherent optical spectrum analyzers (COSA). The increase in efficiency is achieved through usage of space-time discrete light modulator in the COSA input and through recording of the spatial spectrum with a matrix detector (MD). The matching of the parameters of the modulator, Fourier lens and MD allowed to improve the technical characteristics of COSA. The matching means the choice of parameters of COSA’s components, which allow to obtain improved characteristics of the COSA.
A clear analysis of the efficient cavitation technologies and ultrasonic cavitation technological possession and the possible way to improve the efficiency of technological processes for the development of the stem of the cavitators with the high intensity of the ultrasound intensity
Found the main types of microorganisms, which can be present at the bacterially obstructed middle.
Carrying out prior microbiological follow-up to the flow of ultrasonic examination on microorganisms from the exemptions of the current acts.
The authors continued previous studies, which were aimed at creating scientific and technical solutions for the development and implementation of energy management systems in educational sector, methods of energy assessment and certification of buildings, typical structures of control, monitoring and management systems, algorithmic and software for information systems aimed at energy consumption processes management, performing energy modelling of representative premises or buildings of simple geometry, taking into account the influence of climatic parameters, operating modes of the heating
The work is aimed at creating a universal power supply subsystem for nanosatellites, which will be able to provide high-quality power to space devices - precision GPS \ GLONASS receiver and optoelectronic scanner (OEC) as a payload of GraviSat and PolyITAN-3.
A new technology for obtaining clean water from liquid waste in closed life support systems and equipment for its implementation has been developed. The main elements of the system are the original centrifugal distiller (CD), which ensures the efficiency of the system at arbitrary orientation of gravity, as well as weightlessness, with intensified heat and mass transfer processes and thermoelectric heat pump, which reduces the specific energy consumption of the system.
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.
