A mathematical model of current diagnostics based on a system of fuzzy linear equations, the solution of which makes it possible to determine the vector of priority of the possible causes of identified defects in the equipment of the power grid complex.

Problems of reducing dielectric strength of transformer oil. The technology of pumping oil through the adsorbent to remove excess moisture. Analysis of methods of drying the adsorbent by an electromagnetic field. Advantages and disadvantages of methods.

Characteristic main features of the location, velocity and the acceleration of the focal point which are determined with taking the group speed of laser radiation into consideration. Definition of the acceleration of the focal point at the exit.

Nicola’s Tesla biography and his inventions: cooperation with Thomas Edison; induction motor invention; experiments on a carbon button lamp and on various types of lighting, cooperation with J. Morgan and his work on wireless world broadcasting tower.

The hypothesis effect of Soloshenko-Yanchilin, the comparison of the effects of gravity on the rate of time. The red shift effect is not a direct proof of time dilation in the gravitational field. The atomic frequency increases in the field of gravity.

The article examines the historical aspects of the formation the energy market of independent Ukraine. The first principles and features of the Ukrainian energy market and their effectiveness are given; steps towards European integration are summarized.

Neutron cross sections have been measured for Lu and Tb isotopes with neutron activation method. The coincidence summing and self-absorption effects have been taken into account. Calculations of efficiency have been performed with Monte Carlo simulations.

History of origin and development of the electrotechnical industry. Characteristics and distribution of transformers, their features and purpose. High voltage DC technology. Consequences of absence of electric energy storage in transmission systems.

Motion of a viscous incompressible fluid in an elastic cylindrical shell under the influence of a number of factors. The assumption that the elastic displacements of the shell are small compared with its radius, but not with the thickness of the shell.

Properties of nuclei, heavy ion collisions and neutron stars. An estimate of the coefficient of incompressibility. Frequent mode of interaction of a particle collision. The theory for the microscopic description of the various modes of giant resonances.

The excitation of the gas for containers whose surfaces are rippled according to Legendre polynomials for ten periods of oscillations. Poincare sections and Lyapunov exponents with different degrees of chaoticity depending on the shape of oscillations.

To gain knowledge about the ionosphere structure at mid- and high latitudes and create modern ionosphere and thermosphere models - the task of the incoherent scatter radar. Problem of the creation of reliable theoretical ionosphere region F2 model.

Aimed at revealing of the draft mechanisms at the thermal power plants, which serve for continuous air supply to the boiler furnace. It is necessary for combustion process of fuel and removal of combustion products from the boiler into atmosphere.

The study of double-beta decay processes of cadmium with crystal scintillators in the Gran Sasso National Laboratory of the National Institute of Nuclear Physics (Italy). Identify constraints on the half-life, the phenomenon of resonance amplification.

The convergence process of the heavy ions in the fusion-fission reactions. Three collective state parameters of the total system: the quadrupole deformations of the target nucleus and the incoming ion and the distance between their centers of mass.

Nikola Tesla as inventor in the field of electrical and radio engineering. Wireless power at a distance - the most mysterious inventions of a scientist. The influence of research on Tesla in the field of electromagnetism to the discovery of x-rays.

The impact of nanoporous carbon material morphology on its electrochemical behavior in aqueous electrolyte. The optimum concentration of aqueous lithium sulfate which provides the maximum specific energy characteristics of capacitor-type systems C/LiSO/C.

The essence of the method of a round flat constant power probe used to determine the thermal characteristics of solids. Formulas for calculating thermal conductivity and thermal diffusivity. Measuring equipment, analysis of experimental results.

Classification of power plants: working on fossil fuel, nuclear, thermal and coal. Steam turbine installations and the use in them of the dynamic pressure created by the expansion of steam to rotate the turbine. Reciprocating internal combustion engines

The implementation of the algorithm of the mathematical model, the procedure for calculating the necessary expressions and their type of representation. Programming sequence of the mathematical model consideration. The equations for current and voltage.

Physical and mechanical characteristics of the barometric sensor. Rules for designing the oscillating circuit a frequency-dependent device. Criterion of reliability of stable resonator systems. The effects of physical degradation of the air signal.

The questions about the future of nuclear energy in Ukraine. The key aim of the paper is to propose tangible solutions to promote atomic energy, regarded by the author as one of the milestones of a decarbonized future for the Ukrainian power mix.

Calculation results of mathematical models to determine bearing capacity, adhesion force and friction force of smectic crystal of stearic acid. Van-der-Waal’s interaction between molecules in layer and methyl groups of smectic crystal adjacent layers.

Poincare dodecahedral space model. The method of calculations. Results and conclusions. One of the best models of the Universe is the Poincare Dodecahedral Space (PDS) model. The improved size of Poincare space model for matter density parameter.

A consideration of process for impulse heat treatment of a silicon surface. The studying the thermal conductivity of a silicon powder and a polycrystalline wafer molded from powdered stock. Defining and comparing compounders with monocrystalline silicon.

Study the collective motion of iso-scalar type at finite excitations on slow motion, due to the presence of a strong friction force. Present numerical results are for coefficients for few composite systems formed in the so called warm fusion reactions.

Investigation the tribological system behavior with help of the thermodynamic model, which takes into consideration the dependence of the effective polymeric lubricant viscosity on the temperature and velocity gradient within phase transition model.

The factors influencing the use of artificial intelligence elements in power grid complexes. In intelligent networks, the tasks of risk assessment and management and coordination of interests of many subjects of the energy system come to the first place.

The theoretical analysis of the behaviour of the stream function, temperature, and local solid fraction for the model of ideal mushy layer. Estimates for the main characteristics of the process are found for the large values of the Rayleigh number.

The model of a continuous transition from laminar to turbulent flow in the boundary layer. The theory of the spectral density of turbulent pulsations is developed. Continuous transition to turbulence. Spectral characteristics of turbulent flows.