In this study, the task of optimizing the supercomputer CPU cooling system with a heat pump in the reverse Stirling cycle through numerical modeling of heat transfer processes in the test object The article presents numerical modeling of heat transfer processes in the cooling system of the supercomputer processors with a heat pump on the return cycle. We investigated the numerical model of heat transfer process in the system of CPU "cold" cylinder and heat pump system "hot cylinder" - coolant. As a result, obtained according to the thermal resistance of the system of CPU "cold" cylinder and heat pump system "hot cylinder" - coolant depending on the coefficient of heat transfer and on the value of COP of the heat pump

Keywords: processor, heat flow, the thermal resistance of the Laplace equation, heat pump, heat exchange, reverse Stirling cycle cooling system

The structure of synthesized ferroelectric samples of PbSc0.5Ta0.5O3 after mechanoactivation were studied by means of X-ray absorption spectroscopy(XANES), X-ray diffraction (XRD) and scanning electron microscopy (SEM). Based on the combination of effective experimental methods and computer modeling of theoretical X-ray absorption spectra near the L3 - edge of tantalum and lead was studied character of structural distortions for investigated samples after mechanoactivation.

Keywords: Ferroelectrics materials, mechanoactivation, XANES, defects

Investigated the influence of contents of sodium - carboxymethylcellulose, glycerin and powder Fe on electrical properties of composite coatings. Proposed regression model describing the relationship of the values of the electrical resistivity of the coating and dielectric strength to their composition used to predict the electrical properties of the formed coatings. Showed the correlation between the microstructure of coatings with Fe powder and electrical properties.

Keywords: sodium-carboxymethylcellulose, the iron powder, dielectric strength, resistivity, composite material

The analysis of the state of transmission electrik lines, on the example, one of the districts of the Rostov region. The prospects of the use of symmetrization devices unbalance, what allows to increase the reliability of power supply to agricultural consumers.

Keywords: stream of the failure, electricity, the balancing device, emergency operation, recovery time, failure, reliability, multilevel inverter, analysis, power line, user.

Interference of mineral fillers, phosphor and chloride contained plasticizes, bromine contained fireproofing compounds and ferrocene derivatives to thermal stability, ignitability and smoking capability of epoxy composite materials was under consideration. The authors have eliminated that the phosphate plasticizes do not affect practically to epoxy polymers' combustibility, but to reduce smoking capability of composites. Different types of mineral fillers by concentration less then 45% by mass do insignificantly affect ignitability of epoxy composites. Different types of aromatic bromine contained additive fireproofing compounds do not affect to combustibility of such composites. The ferrocene derivatives surpass the ferrocene by effectiveness of smoke redesign. Correlation of the oxygen index with limiting oxygen concentration, heat of burring and critical density of heat flow graph was shown up. The main service properties and the data of inflammability of original patented composites are presented.

Keywords: bromine contained fireproofing compound; ignitability; combustibility; smoke ability; composites; fillers; plasticizes; ferrocene derivatives; epoxy oligomers

We consider the problems of complex structure teplotehnologicheskih complexes manufactures pulp and paper industry. Proposed and carried out structural analysis teplotehnologicheskih paper production complex in pulp and paper mills. Use graph theory and matrix analysis. Apply the authors developed a universal application in C # for the analysis of complex structured system of industrial circuits, power complexes. We obtained the results of the work program for the production of paper teplotehnologicheskoj scheme. Revealed all the circuits with the scheme. Identified torn flows for sequential calculation scheme without iterations. structural analysis program can be recommended for use and other industrial multi-loop circuit industry.

Keywords: structural analysis, feedback, teplotehnologicheskih scheme, industry, software, iteration

The article describes the conditions of use of heat pumps in the Russian industry. It proposed to introduce for the food industry, in particular for milk production, teplonanosnaya installation. Heat pump system allows to cover the heat load on the heating, ventilation and hot water supply of a specific milk production due to utilization of energy in the form of relief condensate produced in industrial drying processes. It is shown that the proposed plant will allow useful secondary steam and condensate will reduce fuel costs, simplify circuit heat consumption, reduce the cost of production of thermal energy, reduce operating costs for maintenance of heating systems, heat loss and reduce emissions into the environment.

Keywords: energy efficiency, milk production, relief energy, condensate recovery, heat pump system

Effect of water-soluble polymers additive and surface treatment on particle size distribution are shown in this article.

Keywords: electrolytic copper powder, water-soluble polymer, polyvinylpyrrolidone, polyacrilamide, electropolishing, atomic force microscopy

"We studied heavy loamy calcareous ordinary chernozem developed from the loess-like loam at the Donskoe training farm in Rostov oblast. Samples from the plow (0–20 cm) layer were used in the experiment. The soil samples were contaminated with 300 mg/kg of Cu, Zn and Pb introduced in combination. The metals were introduced in the form of acetates. In was showed that under static conditions, ammonium acetate does not extract the entire stock of mobile elements. In dynamic conditions Cu, Zn и Pb were more extracted. The degree of extractable metals by ammonium acetate buffer from the soil in background and polluted soil can be presented in a series: Zn> Pb> Cu."

Keywords: soil, readsorbtion, heavy metals, zinc, copper, lead, extraction

The absorption of copper, zinc and lead ordinary chernozem loam with a changing ratio of the solid and liquid soil phases. It is shown that an increase in the ratio of 2 times solid and liquid phase adsorption capacity and retention strength of copper, zinc and lead on the surface of soil particles increases due elektroselektivnosti.

Keywords: soil adsorption, copper, zinc, lead, ratio solid and liquid phases

The article contains the results of vibro-acoustic signal processing using Hilbert-Huang transform, obtained during the test of the internal combustion engine. The providence of experiments and methods of vibro-acoustic signal processing is described.

Keywords: Hilbert-Huang transform, Hilbert spectrum, empirical mode decomposition, the decomposition of the ensemble, the Fourier spectrum, wavelet transform, diagnostics, non-destructive testing, the internal combustion engine, vibro-acoustic signal.

The article provides an overview of the software designed for the calculation of measurement uncertainty. A comparison of the main features and capabilities are performed. The information about the used analysis methods, the presence of informative support and the conditions of distribution and use of the software are presented.

Keywords: uncertainty, measurement result, software, method of processing measurement results

About 6 billion people use mobile phones in the world today. Unambiguous information about the potential dangers to human health from the use of a mobile phone is not present. The World Health Organization classifies radio emission from mobile phones as potential carcinogens. However, studies in recent years in most cases do not confirm this. Availability uncertain risks makes particularly urgent training of safety culture to use mobile devices. These security rules often referred to: the use of telephone for a short time, is strictly necessary; failure to use the phone in the area of ​​bad reception; storage and charging the phone at a distance from the rest position (sleep); phone is not wearing on the body? but in the bag, and so on. 94 SFU students were interviewed to determine this aspect of safety culture. It turned out that only 30% of respondents characterized by a sufficient level of safety culture in the use of mobile phones. It determines the relevance of the formation of the culture of safety aspects in the teaching of discipline "Life Safety" at the university.

Keywords: culture of safety, mobile phones, potential hazards, rules of using, university students

In modern society, the factors adversely affecting the health of students, added another: the use of non-normalized electronic devices (cell phone, computer, tablet) in the educational and leisure sectors. The study confirmed the hypothesis that the students, who often use electronic devices (cell phone, computer, tablet) are disorders of the visual system. Our results emphasize the need for preventive measures among students: teaching students the skills of visual gymnastics, promotional and preventive activities that contribute to the education of students of the valuable relation to their health and maintain their visual health.

Keywords: electronic devices, the visual system, the security of the visual system, computer vision syndrome, visual health, visual gymnastics

Based on stm32discovery kit was designed device for vibro-acoustic control. For receive of vibro-acoustic signal used piezoelectric accelerometer, which connected to ADC of microcontroller stm32f4vgt6. For Processing data use personal computer with software, which was developed in visual programming language LabVIEW Data from microcontroller to personal computer transmitter with use USB to UART. Culling depend from results of comparison, reference spectrum and current spectrum by values of the correlation coefficient

Keywords: STM32F4 Discovery, ADC, VISA Serial, LabVIEW, adapter USB to UART, vibro-acoustic control, spectrum, reference, signal processing, correlation coefficient

This article describes one part of the development of the testing device of the magnetostrictive materials. Overview of the various designs of magnetizing systems and methods for increasing the sensitivity of the measuring device was made. The application of artificial neural networks to determine the magnetic properties of materials of the tested samples was reviewed

Keywords: magnetostrictive materials, magnetic characteristics, magnetization curve of the material, full-scale model experiment , modeling of magnetic circuits, magnetic shunt, Artificial Neural Networks.

Examines the influence of seasonal wind-effected phenomena on the ecological state of the Gulf of Taganrog of the Azov sea. The evaluation uses specific combinatorial index of water pollution, examines the dynamics of the concentrations of indicators such as dissolved oxygen, salinity, copper, phosphate, affecting the environmental condition. The description of the hydrological and meteorological characteristics specific to the Gulf of Taganrog, forming a unique ecological environment for aquatic life. The analysis of the dynamics of the concentrations of indicators and draws conclusions about their seasonal surge phenomena

Keywords: surge phenomena, wind direction, MAC, SCIVP, water quality, dissolved oxygen, salinity, copper, phosphates

Examines the impact of natural water quality in areas of water intakes of the city of Taganrog. The evaluation uses specific combinatorial index of water pollution, deals with the dynamics of the main polluting substances in the area of water intakes and their impact on cardiovascular disease of the population. A comparative analysis of the dynamics of pollutants in natural water and the dynamics of mortality from cardiovascular diseases and the dynamics of primary morbidity, defined pollutants that have the most negative impact on the statistics of cardiovascular diseases, recommendations for prevention of these diseases

Keywords: MAC, SCIVP, water quality, IVP, critical indicators of water pollution, copper, manganese, water quality, heart, circulatory system

The experimental research of amplitude characteristics of low-noise amplifiers of microwave range of АС180400-071 type of Joint-Stock Company "SKARD-ELEKTRONIKS" manufacture was made. It is shown, that power of saturation can vary from 34 to 75 mW at input power 10 mW. On a number of frequencies monotony of the amplitude characteristic is not provided.

Keywords: limiting amplifier, power of saturation, measurement installation, amplitude characteristic

This article considered individual and unidirectional cooperative mass transfer of two components with a various in the surface-active properties in extraction system carbon tetrachloride - 4% aqueous solution of potassium iodide in the flat interface in the conditions of spontaneous interphase convection. Studied the interaction flow of components in unidirectional cooperative mass transfer on the intensity of mass transfer each other in the conditions of spontaneous interphase convection. Unidirectional cooperative mass transfer acetic acid and iodine increase mass transfer iodine coefficient as compared to its individual mass transfer.

Keywords: spontaneous interfacial convection, Marangoni effect, the cooperative mass transfer, extraction, the mass transfer coefficient, acetic acid, iodine, carbon tetrachloride, the intensity of mass transfer

Correlation intervals of chaotic systems with modulated time step-size signals was estimated. Temporal discretisation step estimation ratio to quasi-resonant period oscillations was varied. Probability distributions of the Lorenz system signals are considered. Discretization step size influence on poly Gauss properties of signals was carried out.

Keywords: dynamic chaos, radioelectronic dynamic systems, statistical properties

The article deals with the calcalation, simulation and experimental study of the filter on quater-wave resonators of the range 2 - 4 GHz. The resulting losses in the pass band are of about 1 dB and stop band on the second harmonic is 50 dB. The good coincidence between the simulation results and experiment is shown.

Keywords: filter, quarter-wave resonator, calculation, modeling, experiment

This article examines the processes occurring in the input circuits of a universal AC control system. The calculated ratio of the power flow control algorithms between networks, provided consumption given the current nature of any nature in the generation of power. The dependences of the calculated ratios.

Keywords: a universal system of alternating current control; power flow control; vector diagram; Power network voltage inverter, active rectifier, capacitive drive.