×

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

  • Rheology salt massif with a spherical cavity

    • Abstract

    This article is related to technological problems of cavities with kamufletnyh explosions, during which the temperature in the cavity greatly exceeds the initial temperature of the array. Often these cavities are created in an array of rock salt. Because the salt even at light loads demonstrate expressive flow properties, it is interesting solution to the problem of creep salt massif with a cavity under the action of a force (pressure inside the cavity and the pressure of the soil), and thermal loads.

    Keywords: heterogeneity, creep, highly elastic deformation, hydrochloric array coupling equation, the integral relations

  • On the theorization of group wood barking

      Mathematical models describing the process of group wood barking in the barking drums are suggested.

    Keywords: group barking, mathematical model, barking drum

  • Categories of psychotherapeutic discourse and their expression in the language (on the basis of the novel by I. Yalom The Schopenhauer Cure)

    The article describes such categories of psychotherapeutic discourse as its participants, aims, values, specific concepts. Special attention is given to the means of the categories’ expression in the language. The authors name so called teleonomic concepts of the psychotherapeutic discourse (life – death), discourse –specific concept relationship is also in focus. It is noted that psychotherapeutic discourse is of a metaphorical nature.

    Keywords: psychotherapeutic discourse, discourse participants, relationship, discourse metaphorical nature

  • High-frequency bandpass RC filter on current repeaters

      This paper presents a generalized framework level band pass filter used in the construction of broadband active RC filters. The conditions that determine the potential stability of the broadband link and its parameters. A variant of circuit implementation, in which low parametric sensitivity of Q to passive circuit elements is achieved on the basis of its own compensate small-signal parameters of bipolar transistors parameters amplification. The results of computer simulations have confirmed that the principle of self compensate coupling semiconductor can significantly reduce the sensitivity of the parametric parts of the second-order band-pass filters based on existing low technologies.

    Keywords: system-on-chip, band pass filter, quality, current amplifier, the sensitivity, bipolar transistor

  • Private and mutual compensation circuits in symmetric stages CMOS operational amplifiers

      The paper discusses the features of their own circuits and mutual compensation circuitry in a differential stage in CMOS transistors. It is shown that their composition can significantly increase the differential gain in symmetric cascades with a dynamic load, significantly reduce common mode gain and extend the range of operating frequencies. As an example, the evolution of the basic concept of a symmetric stage and the results of its simulation in Cadence Virtuoso.

    Keywords: micro circuitry, structural synthesis, complex-function blocks, a differential stage, a CMOS transistor, system-on-chip

  • Simplified determination of parameters piezomaterial on samples of elements in the form of a disk

      The approximate formulas for determination of planar electromechanical force factor and piezomodule in the disk-form samples without Poisson coefficient evaluation of the smallest (first) frequency equation root are derived. It simplifies procedure of measurements because measurement of frequency of the first overtone isn't required.

    Keywords: piezomaterial, disk, planar electromechanical force factor, piezomodule, Poisson coefficient

  • Search of optimum location of stations of an overload solid municipal waste mathematical methods

    In article the technique of optimization of placement of waste reloading stations, allowing to define both location, and number of stations that allows to reduce both operational and capital expenditure for the organization and functioning of system of the address with a waste is offered.

    Keywords: technological process of transportation, a solid municipal waste, critical distance

  • Diagnostic Method of the Geometric Parameters of a Running Part of Radial Operation Bridge Cranes

    Considered the actual issues for nuclear power plants related to ensuring the normal operation of a running part of radial operation bridge cranes

    Keywords: Bridge cranes; geometrical theory of motion; lateral deviation of wheels

  • Anomalous electron emission in the soft X-ray irradiation of the surface of electrets

     Theoretical model of anomalous electron emission has built for an soft x-ray irradiation of  surface elektrets, explaining the different character of correlation between energy and emission intensity of ferroelectric  solid solution PbTiO3 - CaTiO3 and nonferroelectric  ceramics CaTiO3.  Shown that  due electret surface irradiation the  Schottky area is  depleted by nonequilibrium charge carriers.

    Keywords: Emission, electret, ferroelectricity, Schottky area

  • Interaction of conical punch with nonhomogeneous base

    • Abstract

    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.

  • Indusrial nois – as a element of professional risk on the civil engineering enterprisies

      In article it is disscused the basic of the methodological approach to improve the organization of the selection and implementation of measures to reduce occupational exposure of workers construction industry enterprises working under the influence of  high levels of noise.

    Keywords: industrial nois, professional risks, certification of workplaces for working conditions

  • Methods of measurement of the astronomical refraction

      As the most accurate method for determining angles of the astronomical refraction near horizon considered various ways of measuring method. Formulas to calculate the angles of the astronomical refraction she is a modern, combined, interpolation methods, as well as the way the hour angle.

    Keywords: Refraction, the Hour angle, Anti-aircraft distance, Latitude, Declination

  • 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

      Article is devoted to transformation of the concept of a risk management to the tasks of management by development of city territorial systems. The generalized schematic structure of risk management of development of the urbanized territories is considered. Need of the accounting of economic, ecological and social consequences of administrative decisions in the course of realization of strategy of development of territorial systems is substantiated. The mechanism and algorithm of formation of predictive integratedestimateof quality social-ecological-economic system as a result of realization of strategy of the development is offered, allowing essentially to reduce quantity of analyzed options of operating influence.

    Keywords: development management, territorial systems, risk concept, risk management, integrated estimate

  • Application of imitating modeling for developing a perspective plan of the city’s housing renewal

    In the article the imitating system of a perspective plan of the housing renewal, developed by the author, including dynamic model of the housing technical condition change, model of financial support for the realization of a perspective plan, optimization model of the housing renewal perspective plan is considered

    Keywords: Imitating model, Renewal, Housing, Optimization, Means