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  • The definition of railway transport enterprises balanced indexes assessment

    For the economic analysis of railway enterprises assessment the special form has been worked out. The results of the economic estimation allow the economic subject supervisor to obtain analytical material for the managing decision making. One of the main trends of economic subject activity is economic state assessment on the basis of analysis with up-to-date management theory based on economic information technologies that allows to compare production transformation results on the temporal periods and related economic subjects. The peculiarity of this economic assessment method is that all indexes used in the analysis have the same direction vector, i. d. the higher index, the more favorable economic state of analysed economic subject.

    Keywords: railway transport enterprises, economic subject, decision making, assessment results, estimation, data processing, multidimensional approach.

  • The development of a technological machines robust optimization method in a joint synthesis of a parameters and tolerances on them

    The development of the approach to multi-criteria robust optimization is presented in article by developing of a technological machines robust optimization method in a joint synthesis of a parameters and tolerances on them. The ability to search for optimal solutions is the advantage of the proposed method in the absence of functional dependencies for single quality parameters from the input parameters that have extreme character and in terms of the existence of intuitive perception about their best averages. A structural (functional) synthesis, a parametric synthesis and a synthesis of tolerances theories were used to develop a method. This article may be useful for researchers studying the problems of finding optimal solutions during the implementation stages of creating and implementing life cycle of technological machines and for researchers studying the problems of improving the quality and competitiveness of technological equipment in domestic enterprises.

    Keywords: tolerance; parameter; synthesis; robust optimization; processing machine; area of optimum values

  • Evolutionarily – functional classification of the software on processing of spatial data for decision support at the regional level

    Results evolutionarily – functional approach to the analysis and classification of the existing software by processing of spatial data for support of decision-making at the regional level are provided in operation. The analysis of existing software on processing of spatial data for support of decision-making at the regional level, in which the main objectives and functions, creation time, and also the used types of spatial data were shown, is carried out. The four-stage model of classification of the software which distinctive feature is synthesis of cluster and synergy approaches is developed.

    Keywords: evolutionarily – functional approach, spatial data, cluster approach, synergy approach, software

  • Modern methods of the analysis and assessment of socio-economic systems

    Issues involving the analysis and assessment of the efficiency of socio-economic systems are becoming increasingly important and urgent in the modern state structure. An objective assessment of the managerial actions of federal and regional authorities is essential to the reliable functioning of systems of various levels and areas of human operation. The article presents an overview of the main methodological approaches to the study of socio-economic systems. The general theoretical principles of analysis are listed, as well as a brief description of the methods determining their features, direction and applied significance in modern research practices. A great many of the techniques used originate from various scientific fields, and have a reasoned basis and an extensive history of practical application. The approaches and instruments are combined and synthesized, creating a synergistic effect and widening the field for practical research activities in all spheres. The diagram shows a certain general classification of methods by their typical appurtenance, position and mutual influence. Statistical methods that have an extensive history of application in various scientific fields are brought together and compose the basis of research. Expert methods may represent a quite independent research unit, but they could not account for the entire range of problems arising in the study of socio-economic systems. Based largely on the results of examinations and significantly expanding and supplementing them, the various methods of intelligent data processing often function interdisciplinarily, and as a rule, are computerized.

    Keywords: socio-economic system, management, assessment of efficiency, analysis methodology, integral index, examination, intelligent data processing

  • Signals restoration at the spatiotemporal analog-digital conversion.

    The article introduces the concept deployer of high speed analog-to-digital conversion to reduce the dynamic error of the 2nd kind. It is shown that the use of high-speed deployer conversion leads to unequal capture samples of the signal. Considered the ratio of the period of the capture signal samples at a uniform sampling rate and sampling using high-speed deployer conversion, for a given interpolation error. The estimated coefficient linking the period of the uniform sampling and the period razvarivaya functions. It is shown that the recovery of signals by the Lagrange polynomial of the first degree and the use of high-speed deployer conversion, the scan period must be two times less than the period of the capture signal samples at a uniform sampling.

    Keywords: the dynamic error of the 2nd kind, the discretization of signals in time, razvenchivayuschie analog-to-digital conversion, the period razvarivaya functions

  • Optimizing the number and range of the PWG in view stable operation of the gas pressure regulator

    In modern conditions developed and used hydraulic calculation of gas networks program. With them, you can get the pressure value at the nodes of the distribution system of gas supply, costs, and gas velocity in the settlement areas. But do not count in these economic aspects, ie, It is not determined the most economical option, which can be obtained by optimizing the individual characteristics of the gas network. These characteristics in the development of the concept of gas supply is a rational distribution points gas reduction and determination of optimal kolichestva.Priveden calculation of the optimal number of the PWG and the optimal diameter of individual sections of the network of medium pressure gas pipelines to ensure the best economic performance timing system. Defined pressure regulator bandwidth capacity for its stable operation. To determine the effect an increase in the inlet pressure on the diameter of the pipeline.

    Keywords: optimum range, the optimum load, optimization of pressure, the diameter of the gas-supply circuit, the hydraulic calculation capacity pressure regulator.

  • The use of waste wool and feathers as sorbents of oil and oil products

    "Effective and affordable sorbents produced from natural organic raw materials and waste products of agricultural and livestock origin, because these sorbents are part of existing ecosystems and, therefore, best meet environmental requirements, in order to ensure the rational nature management and preservation of consumer properties of water resources. For the solution of actual problems, such as the removal of oil and oil products from water surface, as sorbents was investigated by the waste processing of leather and agricultural industries: wool (sheep and goat) and feather (chicken and waterfowl). It is established that application of organic and mineral acids at certain concentrations , for treatment of wastes from the processing of wool allows to obtain sorbents directional spectrum for removal of oil products (such as diesel gas oil and engine oil) and oil from water. The modifiers of wool and feathers obtained after the chemical treatment, was used to study the sorption of oil and oil products from water surface. It was determined by sorption characteristics of the modified sorbents, such as oil capacity and moisture absorption. The kinetics of sorption–desorption of oil, which showed that the greatest degree of absorption is observed for the first 10-15 minutes. It is found that wastes from goat and sheep wool have a 90% holding capacity that persists in time. It was revealed the effect of temperature on oil absorption capacity of the sorbent and the calculation of heat of adsorption. The temperature increase leads to a reduction of the capacity of emulsified oil, reducing the degree of purification by 15-30%."

    Keywords: sorbent of oil, wool, feathers, oil, oil products, chemical modification of the sorbent, oil capacity, moisture absorption, heat of adsorption

  • Analysis of the evolution of technology wireless networks and development forecasts infocommunication network in Russia

    The article shows research on the wireless technologies, their evolution, the development in Russia and the world. We reviewed the standards and requirements for networks. The reasons for the development, and the fast distribution of network-generation technologies. we have said about the wireless transmission of high-speed networks, a new generation of data. It was found that the evolution of wireless technologies significantly affects not only the development of related technologies of today's networks, but also contributes as the impetus for the fast genesis in the integration with them the latest information and communication technologies and networks, as well as modern mobile equipment and othersand development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

    Keywords: Wireless network generation wireless networks, wireless access points, network technologies, mobile equipment, networking standards, Wi-Fi, WLAN, GPRS, EDGE, LTE

  • Cross-cultural Communication in Terms of English Language Teaching to Science Students as a Second Language

    The latest requirements for specialist training in the system of higher education in the Russian Federation call for enhancement of foreign language learningand improving foreign language teaching. The aspect of interdisciplinary link between foreign language learning and cross-cultural communication is emphasized in the article. We suggest that in order to overcome cultural and language barriers we need to actively engage experts in cross-cultural communication in foreign language teaching, particularly, for science students.

    Keywords: system analysis, motivation, methods of education, identity, military-patriotic education, patriotism and the needcross-cultural communication, professional and cultural competence, foreign language teaching, cultural and language barriers, cultures with

  • Developing of software of automated system of monitoring and control of energy and water

    An approach to the development of software for integrated accounting system, recording and analysis of the consumption of energy and water by industrial enterprises and objects of housing and communal services. This system solves the problem of unification of the various hardware components in a single unit. To develop such software were analyzed existing systems in the market. In the proposed approach, a special place is given to the development of service software. The basic properties of the software, its main components and functional features. The main feature is the presence of analytical software, which allows on the basis of the data obtained to predict the state of the system as a whole.

    Keywords: automated metering system of energy and water, software, tools, utility software, analytics software

  • Institutions in the system of technological development

    The article discusses the problems associated with the development of institutions that support technological development. Necessity of formation of a productive institutional environment, appropriate technology type of economic growth based on knowledge economy. The structure of the institutional environment of the knowledge economy, including functionally interdependent institutions: development institutions of knowledge and technologies (production, exploration, development and protection of knowledge) and their associated organizational forms.

    Keywords: technological development, institutions, institutional environment, knowledge economy, economic development, innovation

  • Brain activity modeling based on the model of Hodgkin-Huxley

    Brain neural networks models based on the model of Hodgkin-Huxley and the inhibitory and excitatory postsynaptic potentials EPSP and IPSP balance problem are investigated. The problem of the inhibitory and excitatory postsynaptic potential balance, affecting such person's ability as learning, memory, movement, ability to analyze and so on has great scientific and practical importance. Implementation of the model Hodgkin-Huxley in the Matlab environment is made. Model modification is considered given the occurrence of a synapse in neuron system.

    Keywords: mathematical modeling, EPSP, IPSP, ionic channel, modified model parameter, neural network model, Hodgkin-Huxley

  • Milling of deep annular grooves of disc cutter on the depth of the groove

    The article describes one of the methods of machining deep grooves in the turbine rotor disk mill, analyzed the parameters of the shear layer, defined modes of processing and the main process time.

    Keywords: milling techniques, the parameters of the shear layer, the maximum thickness of the cut, the cutting conditions, the cutting force, the main production processing time

  • The development of the draft social protection of the population of the local area

    The article considers the questions of formation of system of social protection of the population in the local area. Analyzed the components of the modern problems in the sphere of life of the population. On the example of municipality of the city of Taganrog, Rostov region presents an assessment of problems in the sphere of social protection of persons with disabilities. Presents an analysis of the developed project to create a gym for this category of the population.

    Keywords: the system of social protection of the population, problems of social protection of disabled persons, forms of social support, municipality, municipal program of social protection of the population

  • The method of forming a reduced order modelof microelectromechanical systems using the ANSYS software suite integrated means

    The article describes the role of reduced order models (ROM) in MEMS design & testing, reflects their advantages in comparison with the finite element method (FEM) full models for real-time behavioral modeling of MEMS dynamic characteristics and versatile research of the objects' properties. The mathematical interpretation of the procedure for reducing the system dynamics equations order by switching from the full model presented in the form of state variables equations to the ROM state variables equations is given, the four existing scientific methods for reducing the FEM model order are presented in generalized form. The particularities of embedded ANSYS software capabilities application to automatically generate the ROM from the original full FEM model with lower computer power requirements and the preservation of the original model accuracy in the presence of only the structural mechanics are set out in details. Two equal algorithms for further work with the ROM in MatLab software in order to simulate the MEMS dynamics and study time and frequency properties of the model are presented: by designing the scheme consisting of prearranged Simulink function blocks and by writing an M-file program listing using the special MatLab programming language. Scientific novelty of the results is the combination of the methods for MEMS design (system of partial differential equations, ANSYS program) and behavioral modeling (system of ordinary differential equations, MatLab program) that can significantly reduce the complexity of the FEM model adaptation to the real-time modeling and eliminate computation errors.

    Keywords: micro-electro-mechanical system, finite element method, behavioral modeling, reduced order model, ANSYS, MatLab

  • The dependence of the current cycle measurement for adaptive time sampling extrapolation from the structural properties of the signal

    The efficiency of algorithms for adaptive time sampling (ATS) compared to the uniform time sampling (UTS) is defined in this property the analog signal as its compressibility. In order theoretical estimates of the compressibility of the measuring signals discusses the dependence of the current beat of the measure under ideal in terms of quality playback ATS from the dynamic properties of the signal. Signal recovery after ATS is made by extrapolation by a polynomial of n-th degree. The quality of approximation is determined according to the criterion of uniform approximation. For the extended area of the margin of error of reproduction is proposed as the dynamic properties of the signal to use its structural properties. In the case of a polynomial of the 0-th degree obtained functional dependence of the current measure measurement of the structural properties of the signal, allowing it to determine the average quantum duration of the measurement for ATS.

    Keywords: Analog-to-digital conversion, adaptive time sampling, cycle measurement, coefficient of reducing the number of samples, the structural properties of the signal

  • Assessment of human factor in emergency situations on the basis of fuzzy sets

    This work is devoted to the modeling of the fuzzy assessment of the impact of human factors in emergency situations in industrial activity. Relevance of the research lies in the uncertainty, heterogeneity and uncertainties of the input data, on the basis of which it is necessary to assess the impact of human factors in emergency situations. The article describes the main stages of the fuzzy modeling: fuzzification of input data, the construction of inference rules and defuzzification of the output variable. The proposed base of fuzzy inference rules include input linguistic variables, fuzzy rule-production and output linguistic variable. The constructed model allows us to estimate the degree of influence of the human factor in the conditions of uncertainty and subjectivity.

    Keywords: linguistic variable, fuzzy modeling, human factors, fuzzy rule-production

  • Assessment value of the property for municipal purposes

    In modern conditions the problem of assessment and privatization of municipal property is quite relevant in connection with the transition to market relations, and the development of the institution of property. In this article we try to consider the basic aspects of valuation and privatization of property for municipal needs.

    Keywords: privatization, real estate valuation, auction, municipal programs

  • Coverage Guardial Elements Exposed To Local Forces And Their Calculating

    Construction of three-dimensional structures faces the need to cover the hard concrete layer with lightweight insulation and waterproof carpet. This combination of materials with different mechanical and physical properties requires the creation of methods for determining the stress-strain state of elastic composite layer lying on absolutely solid. According to these criteria the general solution of elasticity theory problem for each layer has been calculated. The system of differential equations is solved. A homogeneous solution can be used to study various problems of stress state in a layer. Formation of the problem of infinitely extending beamless surface has been drawn as an example. These solutions can be used in studding various problems of stress state layer. The solutions of engineering problems require the definition of complex roots of transcendental characteristic equation. In this paper, the roots were determined by Newton`s method. The obtained roots of the characteristic equation determine the stress and displacements in each point of a composite layer.

    Keywords: eigenvalues, eigenfunctions, boundary conditions, a potential solution, vortex solution, differential operators, homogeneous system, the voltage of the plate

  • Rational design disk cutters for machining slots

    In the article the method of improvement of the design of the disc cutter for machining a wide, deep grooves.

    Keywords: Scheme of cutting of the shear layer, the maximum thickness of the shear layer, free-cutting, cutting width, cutting force, straight grooves, circular grooves, the theorem of cosines.

  • Determination of Environmental Safety class of Volgograd vehicles

    According to statistics with each passing year nubmer of vehicles increased so much, that for safety reasons we need to determine the extent of environmental pollution from vehicles on the example of a particular city. Class of environmental safety Volgograd's transport infrastructure in terms of biospheric compatibility urban area is defined on the basis of the book Il'ichev V.A. "The principles of transformation of the city in the biospherecompatible and developing human". For determining environmental safety Volgograd's transport infrastructure we can use index of compatibility biospheric urban area which takes into account the balance between the ratio of the actual parameters of the biosphere and the technosphere. In this scientific work we obtain a class of ecological safety of Volgograd vehicles. This classification is important for the determination of the critical indicators of biospheric compatibility territory of transport infrastructure for any city.

    Keywords: biospheric compatibility, balance method, the biosphere, the technosphere, synergistic effect

  • Fractals' modeling

    The paper presents a classification of two-dimensional as well as three-dimensional fractals, fractal characteristics, methods for modeling fractals. The algorithm of visualization fractals have used in the "3D simulation of fractals" software for the first time. The points’ generator module unites the points of space into a set of triangular finite elements in the environment of the computing complex SCAD. Complex fractal geometry have transformed into a spatial finite element model of the fractal.

    Keywords: fractal, non-Euclidean geometry, fractal characteristics, two-dimensional fractals, three- dimensional fractals, 3D modeling fractal, energy of fractal, iterations of modeling fractals

  • The pilot complex of full-cycle's of processing natural and petroleum gases into synthetic oil

    The full-cycle pilot complex was developed of conversion of natural and associated gases into synthetic hydrocarbons by the Fischer-Tropsch method. Including all general stages of GTL technology. The experimental studies on the motor fuels synthesis from "model' of the gas composition. Having of pre-reforming step determined of the need for removal of C2+ hydrocarbons, which leads to catalyst deactivation of conversion. Shown that the obtained synthesis-gas from conversion step may be used in the hydrocarbons synthesis by the Fischer-Tropsch method. The developed composite catalyst is allowing to obtain high-quality motor fuels from one-reactor method. The Uniting steps of hydrocracking and hydroisomerization of hydrocarbons from CO and H2.

    Keywords: associated petroleum gas, GTL technology, Fischer-Tropsch synthesis, synthetic liquid hydrocarbons.

  • The main aspects of forming of a human capital in the conditions of formation of economy of knowledge

    The main approaches to forming of a human capital as major factor of economic growth and production resource of economy of knowledge are considered. The main stages of forming of a human capital and the main factors influencing this process are determined

    Keywords: knowledge economy, human capital, competence, intellectual potential, labour potential

  • Analysis of the emotional state of students by DSTU using the method of semantic differential

    The work is dedicated to the analysis such indicator of the contentious background as an emotional state. The study has both theoretical and practical orientation. The theoretical framework discusses the origins of the relationship of latent protest with this indicator. In practical terms, the work adapts to the problem conditions previously developed measurement technique according to the technology of semantic differential. Testing was conducted on the basis of concrete experimental data obtained by questionnaire survey among students DSTU (faculty "Innovative business and management") at the end of 2015. The Survey was of a pilot nature, was attended by 79 students, mostly 2 - 4 courses. To measure the affective component respondents were asked to characterize the semantic scales of his real emotional state, as well as two perfect construct. Measured the affective level of perception of the emotional state based on the proximity in the semantic space of the image of the real object to ideal constructs. In particular, in the linear approximation, as polprasert the appropriate relative distances. In addition to the distribution functions of the searched level of the respondents obtained through the linear approach, the paper presents updated results. The latter was calculated according to adapted for these purposes, a previously developed stochastic non-linear model. In models of individual affective level of perception was defined by stochastic integro-differential equation of gradient type. Which is numerically solved using the agent-oriented simulation package AnyLogic. Using Monte Carlo for these solutions was determined by the statistical parameters of the study audience, such as the responsibilities in the distribution of the respondents affective level of perception of their emotional state. In the whole group received a neutral level of perception of the emotional state, the average for all respondents the value zero. A large part of the studied audience (81%) showed a positive or moderately negative emotional state. And this indicator is not characterized by a high degree of conflict. And only a small portion (9%) is very negative (from -0,6 to -1 on a scale from -1 to +1) emotional state, contributing to the development of the protests. The result shows the potential of the developed method of measurements to assess the risk of political tension. This is the first main result. In particular, for the study of the audience revealed that this subgroup of the risk is 9% of the respondents. Note that this estimate coincides with the results of the monitoring in the affective perception of political orders, also conducted earlier among the students of the same faculty. The second important result is connected with a comparative analysis of affective and cognitive component of perception of emotional state. The cognitive component was determined for the appropriate group of questions in the same questionnaire. It is found that when cognitive appraisal of their emotions by the respondents at the average position values that are different from the actual feel. This indicates the failure of the direct conventional estimates of emotional state and the need of measuring the affective component.

    Keywords: emotional state, affective component, cognitive component, semantic differential distribution function, the nonlinear stochastic model, multi-agent approach, the risk, conflict potential