×

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

  • Modelling of priority management by information streams with use of sockets

      In article questions of modeling of priority management by formation of information streams in information systems with the centralized source of data with use of the mechanism of sockets are considered. This question is staticized in connection with necessity of optimum control of information processes in the automated control systems. Management is based on change of priorities of forming processes, depending on ranks of clients. On the basis of an experimental material the analytical dependences establishing the relations of parameters and criteria of management are received.

    Keywords: a process priority, a delay of information service, an information stream

  • Dynamic analysis of body garbage truck handler

      Results of investigation into oscillating pattern of garbage track operation in production mode are presented. Nature of car frame vibrations, lifting angle of handler and their impact on generation of force inside the system «grabbing device – container – grabbing device» subject to damping are determined.

    Keywords: garbage truck, handler, grabbing device, free damped oscillations, generation of force

  • Investigation of influence of adsorbtion of CO on characteristics of hold-up line on SAW with ZnO nanorods sensitive element

    Structure of  surface acoustic waves(SAW) of CO sensor was developed. SAW sensor include transceiving IDT and catoptric IDT, which is loaded on the impedance of ZnO nanorods. Peak of reflection SAW from IDT clearly observed as result Fourier transformation of time function of pulsed response. IDT loaded on resistance paralleled ZnO nanorods, which depends on the concentration of CO.

    Keywords: ZnO nanorods, device on SAW, CO sensor

  • Running inductance of circular conductors with axial density of current in the complex functional blocks

    The paper analytical method for calculation of magnetic characteristics of infinitely long circular and hollow cylindrical conductors has been proposed. The method permits: to calculate radial distribution of vector potential and induction of magnetic fields, being formed by direct current in the internal and external areas of the conductor; to determine the value of magnetic flux in the internal and external areas of the conductor; to calculate the current and flux running inductances of circular and hollow conductors; to find frequency dependence of Q-quality of cylindrical conductors and to de-fine the scales of characteristic frequencies.

    Keywords: inductance, distribution of magnetic fields, magnetic flux, Q-quality, complex functional block

      The paper covers the development of geometry-based skeletal animation algorithms for deforming 3D models. Linear Blend Skinning technique being widely used, much attention is given to the method description and its shortcomings. The paper gives wide coverage to the state of the art in geometry-based skeletal animation algorithms. 

    Keywords: skeletal animation, skinning, geometry-based algorithms, character animation

  • Transformation of coordinates, utilized in geodesy

    The solution of the vital problem of transformation of coordinates of one system into another is proposed. The formulas of the connection of rectangular and geodetic coordinates, different three-dimensional rectangular coordinates and systems of plane coordinates are given.

    Keywords: Geodesy, Coordinates, Transformation of coordinates

  • Magnetometer with cryogenic probe

    The problem of interaction of mutually perpendicular magnetic fields in superconductors is considered. Possibility of use of a nonlinear susceptibility of superconductors for measurement of a magnetic field is shown, the assessment of sensitivity of the cryogenic probe magnetometer is carried out.

    Keywords: superconductor, magnetometer, SQUID, cryotron, the crossed magnetic fields, non-linear magnetic, cryogenic probe

  • Comparison of the results of a calculation of the astronomical refraction near the horizon in different ways

    Performed calculations of angles of the astronomical refraction in different ways and made a comparative analysis of the results of a calculation. Provides recommendations for the use of any means in different contexts.

    Keywords: Astronomical refraction, the Hour angle, Anti-aircraft distance, atmosphere, Pulkovo table.

  • Development of the new method for determination of 3D nano atomic and electronic structure of materials based on XAFS, XRD and Raman techniques

    Combined method which allows analyzing parameters of the nanoscale atomic and electronic structure of materials relying on three different methods (x-ray absorption spectroscopy (XAFS), x-ray diffraction (XRD) and Raman spectroscopy) was developed. The method was applied for the study of nickel oxide nanoparticles, which serve as an efficient catalyst for the artificial photosynthesis process. 

    Keywords: solar energy, artificial photosynthesis, NiO, Raman, x-ray diffraction, XAFS

      The proposed approach to the study of social engineering systems to meet all their basic features. Blurred structure of social engineering system reflects the fuzzy cognitive model; Fuzzy connection effectively evaluated using weights Fishburne; "blur" element values system and its functioning is overcome by introducing linguistic variables and their term-set fuzzy classifiers.  

    Keywords: system analysis, poorly structured and poorly formalizable processes, sociotechnical systems, fuzzy cognitive modeling

      The current work considers the problem of arrangement optimization of non-convex polyhedrons into a minimal height parallelepiped container. The no-fit polyhedron based algorithm is proposed to solve described task. The no-fit polyhedrons are used not only for providing conditions of the polyhedrons mutual non-intersection but also for finding the placement points. The current paper provides the block diagrams and the pseudo code of the algorithm. Some examples and computational results are also given for public input data. 

    Keywords: packing, no-fit polyhedron, non-intersection, optimization, arrangement

      The article describes the best ways spline interpolation trajectories of angular movement in the key points for solving motion control rd to the prediction of the external load. As benchmarks we examine the accuracy of the approximation of the drive and the complexity of calculation of coefficients of splines.

    Keywords: Trajectory, Lagrange splines, splines Ferguson, interpolation

  • Styptic matches

    The article summarizes information about a new method of obtaining krovoostanavlivaûŝego. potassium alum are the basis of composition, which includesε-aminokapronovuû acid, sodium chloride, purified water and lanolin. preparation on surface wounds and abrasions forms a polypeptide film from ε- aminocapronova acid. in a hermetically sealed space potassium alum painlessly have hemolytic activity. The article contains 1 picture and 1 table. Bibliography-3 title.

    Keywords: potassium alum, ε-аminocaproic acid, sodium chloride, lanolin, hemolytic activity

  • Ways and means of decrease in noise loadings on the civil engineering enterprisies

    In article it is disscused ways of decrease in noise and realization of actions for decrease in professional risk of workers construction industry enterprises working under the influence of high levels of noise.

    Keywords: industrial nois, professional risks,labor protection

      The features of the construction of effective solutions to the problems of excitation of multi-media internal sources of oscillations. Examples of numerical calculations of the displacements and strains in the environment depending on the position of the source and observation point.

    Keywords: many layers of base, internal source, harmonic oscillations