2009, Vol. 06 No. 1(11)

  1. M.E. Agelmenev, Z.M. Muldakhmetov, S.M. Bratukhin, V.V. Polikarpov, O.A. Yakovleva
  2. SOME PROPERTIES OF THE MEZOGEN ARYLPROPARGYL ETHERS OF PHENOLS.
    [article]

    Summary
    This work presents the results of experiments on computer modeling of behaviour of clusters consisting of nematic liquid crystals on the basis of the arylpropargyl ethers of phenols (APEP) with the help of GROMACS programme and of them IR absorption spectrum. It shows the influence of fluorine atom on properties which happen as a result of temperature annealing to the processes of disordering. The given experiments demonstrate the necessity of a correct choice of interaction between molecules. The influence of location of molecules at the initial state to the behaviour dynamics was found.

  3. A.K. Aringazin, V.D. Krevchik, M.B. Semenov
  4. BIFURCATION AND CHAOS IN TWO-DIMENSIONAL SYSTEMS OF QUANTUM DOTS AND QUANTUM MOLECULES
    [article]

    Summary

    Methods developed in the approach to quantum tunneling with dissipation are applied to a dissipative tunneling in the systems of coupled quantum molecules. We study two-dimensional (2D) effects of cleavage and thermally controlled extrema in tunnel probability function on asymmetry parameter; thermally dependent blockage effect; effect of edge temperature in the case when radii of quantum dots (QD) in quantum molecules (QM) are bigger than radii of final state QD; bifurcations in the temperature dependence and in coupling constant in interacting QM systems. 2D tunnel transitions are chaotic in the case of antiparallel 2D transfers and this chaotization occurs as a phase transition of second order, whereas in the case of parallel 2D transfers the bifurcations occur as a phase transition of first order.

  5. A.V. Bazanov, V. N. Blinichev
  6. ABLATION SELECTIVITY OF SALTS IN EVAPORATORS OF THE CHEMICAL INDUSTRY
    [article]

    Summary

    In the given work the mechanism of selective ablation of solute from evaporated solutions is observed by secondary steams of evaporator systems at various physical and chemical characteristics of the carried out process of distillation. Research of the major factors influencing purity of gained distillate has been carried out.

  7. L. M. Kim, Zh. T. Ismailov
  8. RADIATION PROCESSES IN CRYSTALHYDRATES.
    [article]

    Summary

    In given work the results on study of radiation induced processes in monohydrate of lithium sulphate and the glauberite salt are given. Thus crystallohydrates are dehydrated easy, that allows to study and to understand a role of crystal water in radiating processes. It is established by methods of the optical and thermoactivation spectroscopy, that radiolysis or photolysis of crystal water molecules result in disintegration of sulphate anions and to suppression of the exit recombination luminescence. The mechanisms are offered for explaining given phenomena.

  9. L.M. Kim, B.S. Tagaeva
  10. INFLUENCE OF COPPER IONS ON RECOMBINATIONAL PROCESSES IN KDP
    [article]

    Summary
    It is investigated ТL of the crystals KDP doped by cooper ions. The cooper ions occupy cationic units or interstitial depending on a way of activation. It is established the Cu2+ as ions replacement and interstitial raise thermal stability of a matrix defects and give new peak ТL at 140К. The presence of replacement ions Cu2+ in a lattice KDP results in occurrence of the new TL peak with a maximum at 240К. The assumption is made, that it is connected to formation of the centres Cu+.

  11. A.I. Kupchishin*, A.D. Muradov, B.G. Taipova, N.A. Voronova
  12. CATASTROPHIC MODEL OF DESTRUCTION AND EXPERIMENTAL RESEARCH OF POLYMER MATERIALS IRRADIATED BY ELECTRONS.
    [article]

    Summary
    The paper is devoted to research of physical and mechanical properties of metallized polymer composites based on polyimide and silver irradiated by electrons up to different integral doses and temperature. General principles of operation of upgraded computerized test setup have been described. Obtained experimental data have been explained within catastrophic exponential model of destruction.

  13. V.P.Malyshev, S.Sh.Kazhikenova
  14. INFORMATION-ENTROPY ANALYSES OF THE QUALITY OF MANUFACTURING PROCESS OF TECHNOLOGICAL PRODUCTS
    [article]

    Summary
    Perfection of manufacture of copper considering the growing poor and complex-structured raw material is impossible only on a basis of traditional methods of opening the relationships of cause and effect during the general technological circuit. These methods require additional probable aspects which are taking into account casual character of the valid transformations of substance during a course of realization of the technological circuit with relation to both the basic product, and to accompanying valuable or harmful impurity.

  15. E.Ya. Epik1, T.T. Suprun2
  16. INTEGRAL CHARACTERISTICS OF THE BOUNDARY LAYER IN RELAXATION ZONE AFTER A LOCAL CLOSED SEPARATION
    [article]

    Summary
    The results of the experimental study of the integral characteristics (friction and heat transfer coefficients, profiles of velocity and temperature, characteristic thicknesses and shape parameters) are presented for the relaxating flow downstream of a separation of various types in case of low free stream turbulence 0.2 % and velocities of an external flow 5 – 10 m/s. The type of a separation (laminar, transitional or turbulent) is adjusted by the shape of an inlet edge of the plate and the length of an intercepter, installed in the test section of the wind tunnel. The measurements confirm extremely slow recovery to a ”classical” turbulent boundary layer after various types of a separation. They also demonstrate the dissimilarity of an internal structure and different rates of recovery in hydrodynamic and thermal boundary layers in relaxation zone both in an inner region and at an outer part of ones.

  17. Kusaiynov, S.E. Sakipova, D.A. Ospanova, K.E. Kurmasheva
  18. RESEARCH OF DYNAMICS OF PULSE PRESSURE IN HETEROGENEOUS LIQUID
    [article]

    Summary
    In [article] results of research of features of physics of heterogeneous streams which due to the properties are widely used in modern heat power devices are discussed. The brief description of experimental installation and results of research of diffusers influence on dynamics of pulse pressure at electrohydraulic influences in a heterogeneous liquid are given.

  19. V. E. Dzhundybayev
  20. . INTEGRATED FLEX SYSTEM OF CONTROL AND TECHNICAL DIAGNOSIS OF BELT CONVEYORS .
    [article]

    Summary
    The relevance of the work is identified by the need of increasing the level of technical control and automation of belt conveyor operation. The general block diagram of the integrated flex system of belt conveyor control and diagnosis is recommended. The use of the flex system of control and technical diagnosis of the condition allows ensuring the quality of required up-to-date belt conveyor operation modes.