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.

Closed model of the turbulent boundary layer, obtained from the Navier-Stokes equations. Fundamental constants of near-wall turbulence, including the Karman constant. Determination of the accelerated and nonisothermal boundary layer over a rough surface.

Development of model for prestellar clouds. Thermal and chemical evolution. Effects of cosmic microwave background radiation. Role of metals in dust phases: a minimum model for metallicity effects. Reduced chemical model for low-metallicity clouds.

Calculation of the average neutron energy. The converter of thermal neutrons. The reactor core. Radiography and tomography tumor contour. Project progress MEDAPP. Irradiation of the cell cultures. Determination of biological efficacy of a new beam.

A description of techniques for increasing the efficiency of a triple-flow pipe with finning used under particular conditions. Calculation of the cooled flow portion. Dependence of the heat performance coefficient on the proportion of the cooled flow.

In the article, author defines the theoretical component of the introductory process from the point of view of the laws of thermodynamics. At the ecosystem level, plant groups with environmental conditions characteristic for each species were analyzed.

The calculation of the Seebeck coefficient for carbon deposits containing multi-walled carbon nanotubes, compacted nanofibers, nano- and ultradisperse amorphous carbon. Characterization of the mechanism of hopping conductivity of compacted materials.

The model for 6Li nucleus is used to study the structure properties of this system within the variational method with Gaussian basis. The description of the elastic S-phases at low energies simultaneously with correct values of the binding energy.

A five-phase inverter control algorithm in the over-modulation zone, which provides a transition from a linear modulation zone to a ten-step phase voltage. The results of the simulation of basic modes of operation in the zone of higher output frequencies.

Terahertz emitters - polaritonbased devices, where signals are generated from transitions between upper and lower polariton branches or bosonic cascade lasers. Band diagram of the double quantum wells system. Energy diagram of the dipolariton system.

Maxwell’s equations with a glance of anisotropic vacuum. The approximation of the weak anisotropy in charges’ absence condition. Methods of analysis a dependence of a light’s speed on polarization. The material equations in case of the time tensor.

Metrological examination of a technique of performance of measurements is understood as the analysis and an assessment of a choice of methods and measuring instruments. Operations and rules of carrying out measurements and processing of their results.

Atomic-molecular structure is unified for matter, the gravitational and electromagnetic fields must have a single structure, which differs in quantitative characteristics . The electromagnetic field differs from the gravitational field only by frequency.

Traditional energy in power systems, agriculture is not a sector with great investment potential. Intensive development of information technologies, smart grids, control theory and operations research. The base of upgrading of the rural power industry.

The aim of the given paper is to summarize the structure of knowledge in electrical engineering needed for students majored in electromechanics, to define its place and role while conducting experimental research while studying technical subjects.

A geometrical description of the moduli space M of rank stable torsion-free coherent sheaves on the projective plane CP2 is given. We consider methods for calculating the top Chern class of the universal vector bundle over a point that represents a sheaf.

Analysis of the working analytical relations describing the focal length of the axicon and its dependence on different geometrical parameters as well as the torsion moment has been derived. Review and characterization describe a gradient-index axicon.

Traditional technical solutions and algorithms for TCSC are analyzed in paper and new method for control of thyristors during power system transient conditions is suggested. An effective way for system oscillation damping on present compensation degree.

Numerical simulation of the excitation of a plasma wave-phase field by means of a generated laser pulse. Increase in the coefficient of transformation. The length of the shaped laser pulse. The maximum energy, to which electrons can be accelerated.

The operation of the photoconversion system based on dual voltage inverters with synchronous intermittent modulation algorithms. Analysis of systems with two basic types of synchronous intermittent modulation and under different operating conditions.

Analysis of obtaining coatings based on (Ti-Zr-Nb)N by means of vacuum-arc deposition method. Study of their physical and mechanical properties and tribotechnical characteristics. Analysis of chemical composition of elements in the coating (Ti-Zr-Nb)N.

Research twist extrusion process and the development of its implementation. Characteristic features of the process of homogenization and mixing materials. Consideration of the stages of the formation of sub-micron and nanostructures in metals and alloys.

In the visible range observed at high excitation levels originates from two-electron recombination transitions in the hole liquid. The critical temperature of the dipolar is substantially less than the spatially. The binding energy of free biexcitons.

Obtaining the asymptotic solution of the weakly nonlinear scalar oscillator resulting amplitude equation. The regular perturbation method generally feature secular behavior. The renormalization group method proposed by Chen, Goldenfeld, and Oono.

The problem of mass application of protection against single-phase earth faults. The main factors affecting the operation of earth fault protection. Zero sequence protection against higher harmonic currents. Limitations of devices with higher harmonics.

Analysis of data on ultrasonic absorption in magnetic nanofluids. The explanation of the peaks of the absorption coefficient of ultrasound using the process of relaxation of the magnetic field to its equilibrium value in the model of magnetic fluid.

The movement is heterogeneous asymmetric particles in a viscous medium under the influence of a potential field. Uncertainties of the spatial distribution of such particles at the cellular level distribution of organelles and macromolecular level.

Description of the features of the action of solar roads, which consist of solar panels arranged in series and having a constructive structure for the movement of vehicles along them, a green alternative to the use of fossil fuels in power generation.

The neutron irradiation facilities offered by the ET-RR-2 and the HPGe-detection system are used for elemental investigation of three samples of domestic fertilizers. A total of 31 elements have been identified as major and minor concentration values.

Analysis of the impact of the negative bias potential on the structure, substructure and mechanical properties of ZrN coatings. Analysis of effect of negative potential on the surface morphology during the deposition effect in reducing the droplet phase.