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  • Interaction of conical punch with nonhomogeneous base

    Consider the problem the interaction of conical punch with soil base. A scheme of partition the study area into finite elements, The formulation problem, boundary conditions, allowing the equation. Presents some results the calculations.

    Keywords: conical punch, foundation, base, axisymmetric problem, stress, displacement.

  • An improvement of methods for definition level of pedestrians service

      Article contains researches of functional and spatial features of foot spaces, the nomenclature of the most widespread obstacles in sidewalks of Rostov, the assessment of their influence on traffic conditions of pedestrians, groups of actions for improvement of a condition, arrangement and functioning of foot spaces are stated.

    Keywords: traffic engineering, pedestrian space, level of pedestrian service

  • Before the calculation of accuracy of measurements of astronomical refraction of the near horizon

    A method was developed предрасчета accuracy of measurements of the angles of the astronomical refraction of the near horizon and formulas for him. Calculated average quadratic error of determination of the angles of the astronomical refraction azimuth way and manner «hour angle» at the field paragraph.

    Keywords: Astronomical refraction, the Hour angle, Zenith distance, Mean square error

  • 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 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.

  • Flaw detection of a steel wire method of tensor magnetic topology

    `Described is the methodology of studying of topology of tensor quantity of magnetic field of leakage of natural defects in the natural geomagnetic field magnetization, which is the base for realization of digital Hall defect scope. Using this set it was managed to register the defects with the peculiar size of 15 microns in steel wire, which is used for reeling of butter spring of trucks.

    Keywords: non-destructive testing, Hall-effect sensor, magnetic tomography.

  • The analysis of constructive and technological restrictions in design of the avalanche photo diodes, working in a photon-counting mode

    Theoretical analysis of constructive and technological restrictions in the avalanche photodiode structure for photon-counting mode is made in this work. It is shown that critical parameters are load resistance and a time constant of a photodiode internal capacity recharge. For decreasing this time constant one needs size restriction of separate section of the photodiode and association of several such sections on a crystal together with registration schemes.

    Keywords: Avalanche photodiode, Mode of the account of photons, Constructive-technological restrictions, Model of avalanche breakdown

  • Problems and perspectives of semiconductor nanoelectronics industry

    The development of semiconductor nanoelectronics industry in the world in terms of globalization is reviewed. The main roadmaps of information technologies development are outlined. The primary method for the costs reduction is the global harmonization of technical solutions (e.g., an international standardization system) which can be achieved through the creation of global alliances. These global alliances lead to partition sectors of the market and the exchange of technological advances and by promoting national programs of information technology development, combining the efforts of public and private sectors. The forecast of the possible development of Nan electronics industry in Russia is given.

    Keywords: semiconductor scheme, chip manufacturing, globalization, nanoscale semiconductor devices, information networks, chip design, design methods.

      This paper studies the approaches to categorizing real estate development risks, presents the detailed classification of project financing risks by the chronology of their occurrence in the economic life of the project, describes the effects of risks on realization of project initiatives, and presents the main strategies to minimize them.

    Keywords: real estate development, project finance, risk classification, risk management, project financing risks, project initiative, project life cycle

  • Technological methods of increasing the Curie point of PZT piezoceramic phase

    It was investigated the influence several additives and process parameters on the properties of piezoelectric ceramics based on PZT phase systems. It was shown that the use of the substitution of Pb2+ ions on the Bi3+, and Ti4+ ions, and Zr4+ to Fe3+ and Mn4+, as well as the method of "chemical assembly «allows to obtain increase the Curie temperature of ceramic samples of 50 - 170°C. The theoretical aspects of this area of research have been discussed in this article.

    Keywords: ferroelectric phase, Curie temperature, ceramics, precursors, perovskite, a solid-state method, a method of «chemical assemblage

  • Monitoring and modeling of group political perceptions of young people of Grozny (according to data early 2012)

    The paper presents the results of research level of perception a political order among students of Grozny (GGNI) at the beginning of 2012. The questioning method was used. In total 320 respondents were interviewed, and captured the age group from 17 years to 20 years. On national structure the group was almost uniform (95,9% - Chechens). The main purpose of questioning - the definition of the emotional component of the group political installation on the classical method of semantic differential Charles Osgood. A comparative analysis was carried out of the averaged semantic level of emotional portraits and making real political order. It is revealed, the image of an order is in the Republic 45% closer to positive "ideal" construct in comparison with image of an order in Russia as a whole. It is received, by the beginning of 2012 perception level considerably decreased to normal value (in comparison with "incredibly positive" 2011). Thus small excess of perception of a political order in the Republic remained.

    Keywords: a political order, a political tensions, semantic differential, factor analysis, the affective component, questioning

  • Convergence of the method of theoretical modeling X-ray absorption spectra for Ru XANES L 2,3-edges in the density functional theory (DFT) crystals as an example [Ru (NH3) 6 3 +

    The results of analysis of computational aspects of the method of obtaining the XANES spectra for Ru L2 ,3-edges by integrating the dipole transition matrix elements involving DFT. The convergence of the numerical integration procedure for the parameters used in the earlier papers, crystals as an example [Ru (NH3) 6] 3 +. More specifically, it is proved that it is possible to use a small area of ​​integration and big enough step between points, which helps to minimize the requirements for computing power and offers the prospect of using this method for the simulation of the XANES spectra in coordinated ruthenium catalysts for splitting water research in the field of solar energy.
    Keywords: RuLedge, XANES, DFT, density functional theory, X-ray absorption spectroscopy, geksoaminoruteny, Ru (NH3) 6.

    Keywords:

  • Level of a group political tension in the student's environment of Rostov-on-Don for 2011

      Results of the flight research spent in student's RBSU environment in December, 2011 are presented. The method of semantic differential is put in a basis of questioning. Respondents were offered to estimate four types of a political order by using of 20 double modal seven-ball scales. Two "ideal" orders are as much as possible attractive order and as much as possible unattractive one. And two real orders are the political order existing in Rostov region and a political order in Russia as a whole. The estimation was spent in linear approach, and also in frameworks the early developed phenomenological model considering typical nonlinearity, which is probable for a considered case. It is received, that in the end of 2011 students were characterized by negative perception as political order in area (with level -0.7, a level was normalized from +1 to-1), so an order in Russia in whole (with level -0.77). Surfaces of the stationary states, allowing to detail dynamics of change of perception level are calculated. Comparative dynamics of behaviour of emotional perception level of real political orders from the end 2009 on the end 2011 is presented. 

    Keywords: questioning, semantic differential, political order, emotional perception level, typical dependence, nonlinear approach, catastrophe theory, dynamics of change of perception