×

You are using an outdated browser Internet Explorer. It does not support some functions of the site.

Recommend that you install one of the following browsers: Firefox, Opera or Chrome.

Contacts:

+7 961 270-60-01
ivdon3@bk.ru

  • Placement of infrastructure of two - stage transportation in city conditions with use the MAIS - methods

    The approach which feature is adaptation of formed infrastructure to local conditions of the territory at the expense of correction of location of objects is presented. At the heart of an approach the method relating to the MAIS - methods is put.

    Keywords: geoinformation system, town-planning requirements, topology, semantics

  • Investigation of the surface quality of weld metal cylindrical part machined in hot condition

    Investigated the quality of the surface layer of weld metal cylindrical part in the combined processes of under the flux layer welding and cutting, as well as follow grinding of weld metal in the hot and cold. Showing photos of the weld surface and the machined part and its structure

    Keywords: grinding, hot weld metal, structure of the metal, micro hardness.

      The results of experimental studies of a radial fan, built a complete characterization on the basis of the data listed in the table confirm the theoretical concepts and calculations. Goal is to determine the total pressure created by the fan, its supply and power consumption for each test mode. Designed and built the experimental setup, the department "Electrical Engineering and Automation" RGSU, which is designed for aerodynamic testing of the fan,

    Keywords: centrifugal fan, a complete characterization of the fan, flow, pressure, section, area, speed, power

  • Features of evaluating the effectiveness of educational services

    In the information society education is a factor in the effective functioning of public and political system. In this regard, management of the education system is of particular importance. The most important are the issues with the system analysis of factors influencing the development and modernization of the education system, effective use of resources in this sphere, the quantitative and qualitative assessment of performance of educational institutions functioning in a market economy.

    Keywords: market economy, social sphere, the sphere of services, the education system, the quantitative and qualitative assessment of the effectiveness and quality of educational services.

  • AccountingVenture Capital

      This system accounting venture capital developed based on the structure of venture capital and is based on the accounts of 86 "Targeted funding" with the sub-accounts by type of venture financing and organization of analytical accounting series of venture financing and participants.

    Keywords: Venture Capital, a venture fund, venture, venture financing, Series financing, the balance, subaccounts

  • Mathematical representation of the characteristics of the interphase boundary surface of the transition layer

    It is shown that to describe the phenomena and processes in a transition interfacial layer having a certain thickness, it is useful to distinguish the boundary layer of the surface and boundary diffusion layer, which lies entirely in the less condensed phase related. In accordance with this energy and power characteristics of the transition layer should be attributed to the boundary surface of the interphase transition layer. The basic equation of electro capillary boundary of the surface layer, establishing the dependence of the surface tension of this layer on the chemical composition of the second phase, and bordering the jump of electric potential between them.

    Keywords: Interphase layer, Entropy, Concentration, Adsorption, Surface tension boundary layer, the surface energy, electrochemical electrode

      The system organization assumes formation of the scientific construction complex providing builder’s competitiveness. Sated network model sare perspective.

    Keywords: System organization, information, model, investments, market, management

  • The process of formation of the municipal environmental management based on information technology

      The paper considers the creation of a municipal nature into account environmental constraints based on information technologies.

    Keywords: nature, natural resources, environmental management, automated land information systems

  • Lidar systems for environmental monitoring and environmental stabilization ingredients for urban areas

      automatic integrated assessment of natural and social sphere of urban settlements and the industry (with the improvement of their quality, stabilization of ecological ingredients and the development of the economy) is a major problem, as well as the traditional lidar optical-electronic systems local monitoring is not make it a positive decision. This problem is very complicated, multifaceted and requires the development of fundamental theoretical provisions for the implementation of the deep research of all types of anthropogenic objects and natural elements in built-up area

    Keywords: monitoring, lidar system, particle, scope, geographic information systems

  • The thermal stabilization system in the combined equipment

    The thermal stabilization system of combined equipment based on methods evaporation-condensation and liquid cooling was engineered and produced.  Some constructive decision of device fluid cooling, results of heat and hydromechanics simulations and testing was presented.

    Keywords: thermal stabilization system, combined equipment, cooling, thermal simulation

  • Tht ecological-economic modeling of the control and management of mineral natural resources

    Total comprehensive evaluation of the effectiveness of use of mineral natural resources of the WPK and the construction industries is production function and its technical and economic factors. By means of the production function describes the various technical processes of structures of the company, the industry and the region as a whole.
     

    Keywords: Defense funds, industrial funds, economic efficiency, mineral resources, geo-information technologies

  • Universal stand and methods of diagnostics of elements of gidrosistem of machines of the communal appointments

    In article the schematic diagram of the universal stand used at diagnostics of elements of hydro systems of domestic cars by a thermodynamic method and a method of similarity of functioning of technical systems is presented. Conclusions by efficiency of use of the stand and methods are given.

    Keywords: hydro system, a technical condition, universal stand, structural and functional parameters

  • The human capital and innovative factors of its development

    In article the concept and structure of the human capital, the investment as a basis of its formation are considered; classification and features of investments into the human capital; an optimum parity of market and state investments into the human capital. Creation of the scientifically-educational centers promoting integration of the advanced researches and formation, for the purpose of growth of the human capital in Russia and to its more effective use is offered.

    Keywords: reproduction of the human capital, the investment into the human capital, features of investments into the human capital, components of the human capital, the scientifically-educational center.

  • The passive wireless sensor on surface acoustic waves for measurement of gas and liquid environments parameters

    The sensor design on surface acoustic waves (SAW), representing the delay line with unidirectional inter-digital transducers (IDT) is considered. The factor of reflection of SAW from the unidirectional IDT loaded on impedance depending on value of resistance connected to it is investigated. On dependence of factor of reflection on size of resistance there is almost linear site at values of resistance more than 50 Ohm. The new design of the connected lattices of nanowire of zinc oxide, having the general resistance in a range of 50-250 Ohm which is connected to reflective IDT as loading is developed.

    Keywords: passive sensors, ZnO nanowire, surface acoustic waves, interdigital transducer.

  • Dynamic cancelation of additive error of precision analog-to-digital converter

    Analog-to-digital converter, with modulation, amplification and demodulation of the input signal is carried out. To compensate the additional error of voltage conversion, concerned with temperature instability, used dynamic cancellation technique, based on the correlation between offset voltage and modulator temperature fluctuation. ADC with response time 0.85 s performs the threshold of sensitivity 1 nV; 8,5 s - 0,31 nV, 85 s - 0.13 nV, 850 s - 0.1 nV, respectively, in the full-scale range 400 mV. Estimation of offset voltage temperature drift is 40 pV / ºC, time drift - 100 pV / h.

    Keywords: analog-to-digital converter, ADC, error cancellation.