The results of the heat transfer processes studies in the heat exchange borehole (BHE), equipped with coaxial collector in order to establish the influence of its design parameters, the properties of the rock mass, mode and duration of the coolant flow to the effective temperature difference. The resulting analytical equation for the effective temperature difference in the conditions of unsteady heat transfer experimentally verified in a lab BHE and can be used in the design of these BHE systems in specific geological and technical conditions. Use the resulting equation for the inverse calculation can be counted the diameter and the depth of the BHE, as well as the duration of the coolant circulation in the coaxial collector. The advantage of such approach is the consideration of the main factors that influence the of the effective temperature difference.

Keywords: borehole heat exchanger (BHE), effective temperature difference, coaxial collector, heat pump, low-potential energy

For system performance analysis using production resources and capacity of the company in the article gribovodcheskoy used machine production functions. Built several classes of production functions, were identified by their parameters. Obtained statistical quality assessment of identified parameters, the approximation and prediction of properties of calculated dependencies identified model with satisfactory approximation properties

Keywords: production of cultivated mushrooms, production functions

Stated direction of the local regional market drugs (LP). The characteristics of a conceptual approach to local markets, taking into account the formation of pricing and analysis of Control at the regional level. The questions assess the potential of the region in the space LP system. The mechanism of the development of regional strategies with methods and instruments for the implementation of the LP on the materials of the Stavropol Territory.

Keywords: analysis of the problems of the local market drugs (LP), a conceptual approach to the development and functioning of the regional market potential of the LP and the attributes of its development strategy

In this article the basic parameters required for residual life assessment and life extension of the technical condition of water or long operated facilities. Inlet water or prolonged use many facilities design elements out of order it - complete destruction of concrete structures water conveyance structures, the formation of defects, normal operational performance of the design water conveyance facilities, such as violation of butt joints, as well as the destruction of the individual elements of the structure, etc. During the development of methods for extending the life cycle of water conveyance structures are obtained by the use of impervious geotextile cover that make for a correct evaluation of residual life of structures may extend its operational life cycle. The question arises of the need for correct and timely manner and to assess the remaining amount of the carrying capacity of water conveyance structures, to evaluate the technical condition and extend its life cycle. To do this, we can apply the proposed impervious geotextile cover. 

Keywords: hydraulic structures, water-conducting structures, life cycle, residual life, technical condition

The article describes the method to assess the social and economic efficiency of bringing workplaces to the requirements of standard of health and safety. The article considers the possibility of calculating the individual groups of social and economic indicators in accordance with the evaluation of various schemes.

Keywords: social and economic efficiency, assessment methodology workplaces, standard of labor protection, labor conditions

The article presents the human capital in the format of a modern system of certification of personnel in comparison with the traditional certification of personnel

Keywords: Human capital, the certification of qualifications, certification of personnel, career ladder, the national frame of qualifications (NPLs)

A new resource-saving technology for treatment of sloping lands providing for deep ripping to reduce erosion processes on irrigated and dry-farming lands as described in the article. The experimental results on determination of geometric characteristics for loosing scopes of chisel plows are given.

Keywords: sloping lands, deep ripping, soil overcompactness, moisture accumulation, intrasoil moisture accumulation, loosing scope, intrasoil walls

  In many applications of profiling cutting tool, define the envelope surface collection. Along with the classic approach to the definition of the envelope of the recently used and new. So, if your family schedule projected two-dimensional surfaces in space R4, then get some three dimensional hypersurface Σ. Kriminanta this is the envelope of family of surfaces. The authors study the surface Σ when setting its parametric equations and equation in implicit form held in the works.  Found some new properties of such surfaces. Due to the fact that when profiling cutting tool set family of surfaces, coordinate transformation equations, an important task is the study received thus hypersurface. On the basis of article studies obtained in a general manner the necessary payment according to calculate kriminanty and diskriminanty hypersurface.  They show examples of how to define envelopes two families of spheres. These are family formulas transform coordinates defining the translational and helical movement. The results are illustrated by computer polygonal models.  

Keywords: a family of surfaces, hypersurface, profiling, feature display, cutting tool

This article is an attempt to sort out differences between versatile educational activity of student group’s tutor and the absence of clear definition of principal directions on which educational activity is based. The following principal directions of student group’s tutor were identified and systematized: health, collective, studies, leisure, scientific research and public activities. Each of the direction is accompanied by action plan leading to improvement and development of tutor’s educational activity.  

Keywords: the tutor of group of students, educational activity, student’s scientific research activity, students collective, public activity, healthy lifestyle promotion

The article deals with the problem to determine the strength properties of the ballasted clogged sand dunes, including the action vibrodynamic loads. According to the results of laboratory experiments for the first time we obtained the reduction of specific adhesion and angle of internal friction of gravel ballast material on the density and the percentage of blockage of sand dunes under the influence of both static vibrodynamic the action of loads.

Keywords: crushed stone ballast, sand dunes, weed, vibrostabilometr, specific cohesion, internal friction angle

Discusses the use of the property of the integrity of the systems, in aspects of building functional structure and build a hierarchy of goals in the analysis of technical systems

Keywords: system analysis, integrity, conceptual design, basic design stage, functionfl scheme, the hierarchy of goals, dualism, unity and struggle of opposites

  Is considered non-stationary axisymmetric problem for fine round bimorph plate under the action of the top end surface of the normal stresses, being an arbitrary function of radial coordi-nates and time. On the basis of the theory of Tymoshenko by the method of finite integral transformations built a a new solution for the electroelasticity system stepwise  variable thickness and stiffness. The obtained relations allow to investigate the stress-strain state and the potential difference between external electrodes bimorph elements.  

Keywords: task reverse piezoelectric effect, thin bimorph plate, axially symmetric dynamic load

  Laboratory technology was developed to fabricate flexible piezocomposites with ferroelectric phase - polymers having signal reception factorv • gv 5000 • 10-15 m2 / N. The values of the given coefficient were achieved by switching from a probabilistic (spontaneous) percolation to a correlated one in the process of forming material. This made the production of 0-1–3 piezocomposites, in which a part of piezophase has 0 connectivity, and the other part – 1 connectivity possible. To improve the efficiency of piezocomposite polarization before their manufacturing the surface of piezophase particles, which were obtained by the partial destruction of the porous frameworks, was treated with coupling agent, which did not only improve the polymer adhesion to piezophase, but also allowed the removal of water from the particle surface. The latter effect reduced the value of interfacial conductivity, i.e. prevented the voltage drop of the polarizing field. Matching of polymer conductivity and piezoceramic particles by determining the optimal polarization temperature was carried out as well.  

Keywords: piezocomposites, percolation, connectivity, electrophysical properties

The investigated nanocomposites are characterized by more uniform distribution of amorphous and crystal phases. An optimal number of crystallization centers - nanoparticles leads to improve mechanical properties of polyethylenes. Introduction of nanofillers into a polymer matrix leads to the formation of cryptocrystalline supermolecular structure by reducing of the thermodynamic threshold of crystallization.

Keywords: low-pressure polyethylene, magnesium spinel, zeolites, nanofiller, the degree of crystallinity, X-ray diffraction, atomic force microscopy

We consider the main content of diversification as business entities. manifested in the purchase of existing enterprises, creation of new enterprises, the redistribution of investment for the organization and development of new products to existing production facilities.

Keywords: risk management of food safety, sanitary-epidemiological insurance, food safety, security risks, the classification of hazardous food

A compact digital voltammograph for electrochemical analysis of aqueous solutions was created. Device’s construction and drawings of the electrochemical cell for the studying of small amounts of fluids are described. Electronic circuits are assembled on modern high-precision components. The device implemented using cyclic, normal pulse and differential pulse voltammetry. Experiments were carried out with solutions of copper ions and hydrogen peroxide to test operability and characteristics of the voltammograph. All implemented methods gave reproducible results that are consistent with the theory. Typical results of the experiments with solutions of copper ions are shown.

Keywords: voltammetry, voltammograph, voltammogram, electrochemical cell, analysis of solutions

The paper considers system designed to help with the organization of qualification testing of expert groups, as well as in the provision of software tools for expert and automated clustering and classification of devices and equipment of railway automation. The scope of this complex are intelligent systems, devices, and other equipment in work with whom systematic classification of measurements needed. Presented software application designed on Borland Delphi - high level programming language.

Keywords: expert system, clustering, classification, acceptance testing, diagnostics of technical condition

The peculiarities of modification of silicon’s surface structure by the electric disintegration were researched. It was established that the electric disintegration of sensitive layer’s surface increases its effective area and the density of surface state. It also forms the deep energy levels in the forbidden zone of the semiconductor which are conditioned by atoms of the electrode’s material and by dislocation. In total it makes possible to modify the sensitivity and selectivity of gas sensors.

Keywords: modification of surface, sensitive layer, gas sensor, electric disintegration

  The purpose of this work is identification of optimum methods of an as-sessment of a resistance to stress in work of the modern organizations of a services sector. This article considers the major factors influencing effective work of the personnel in a services sector under the influence of various stressful situations.  Categories of the workers who are most subject to psychological instability on workers are defined.   

Keywords: resistance to stress, testing methods, service economy

The article describes the main problems of circuit simulation. The problem of solving ill-conditioned systems of linear algebraic equations (SLAE) of large dimension. The modified algorithm is a linear algebraic solutions. Described a hybrid evolutionary algorithm for solving linear systems based on the proposed modified method. The results of the pilot study and comparison of the algorithm with the algorithms based on the traditional methods for solving linear algebraic equation, which confirm the advantages of the hybrid evolutionary algorithm.

Keywords: Genetic operators, evolutionary algorithm, the system of linear algebraic equations, computer-aided design.

The article presents the new technologies and design tools for опиливания of machine parts. A number of new technical solutions in the field of innovative Metalworking tool for опиливания parts of machines, with a complex of technical and economic advantages over existing analogues. Shows the five variants of constructions and technologies for the production of files and надфилей, based on the use of hard coating. New tools are characterized by a low-cost, low labour-intensiveness of manufacturing and high performance.

Keywords: tribology, the filing of a painful, spraying, carbide coatings, wear, self-sharpening, reversible cutting plates

The innovative and perspective kinds of self-employment of population in modern economy of Russia are considered to be organizations performing research and development operations (R@D-organizations). In this respect it is necessary to make a research of new kinds of creation new knowledge and its usage in new products, technologies and equipment. 

Keywords: economy; self-employment of population; innovative self-employment; organization and work rationing; creative activity; process of creation of new

Structuring the processes of research of new kinds of creation new knowledge and its usage in new products, technologies and equipmen allows: to define a place, role and functions of self-employed people in regional and national economy; to design tools and methods of state policy support to self-employed people and mechanisms of increase of efficiency of their business enterprises; to create methodical instruments of organizing and rationing creative activity.

Keywords: economy; self-employment of population; innovative self-employment; organization and work rationing; creative activity; process of creation of new knowledge; research works; development operation

There is two type of phosphate minerals for phosphate basic materials. Features of the apatite and the phosphorite deposits are given consideration. It is marked, that stacking process is forming from two sorts of phosphogypsum: dehydrate and semi-hydrate calcium sulphite. The results of studying the phosphogypsums' physical-mechanical properties are given. Specific structurial-mechanical, strength and strain conditions are considered.

Keywords: apatite deposits, phosporite deposits, extraction method, dehydrate and semi-hydrate phosphogypsum, dumps, geotechnical properties

The mathematical model of the potential distribution in the semiconductor surficial region in the presence of deep-lying levels in its forbidden zone which specified by multiple-charge impurity centers has been developed. The simulation results can be used for the width of the space charge region estimation, for the prognostication of the most probable mechanism of the charge carriers transfer in metal-semiconductor structure with multiple-charge deep-lying levels and also for the prognostication of the barrier capacitance value. It can be used in the development of solid-state electronic devices with improved values of some parameters.

Keywords: Poisson’s equation, multiple-charge impurity center, potential distribution, deep-lying levels