2012, Vol. 09 No. 2(18)

  1. P.V. Makarov, E.P. Evtushenko, N.A. Bektemirov SIMULATION OF ROOF CAVING IN WHILE CONDUCTING EXCAVATION MINING WORK
    [article]
    Summary

    Peculiarities of geo-environment evolution as a nonlinear dynamic system with the self-organized limiting feature are discussed. Calculations of the initial and subsequent roof cavings for different advancing rates were fulfilled. Special attention was given to the study of unsteady nonequilibrium deformation process in the roof at high face advancing rate. It is shown that other features of such systems are the existence of calm zones in the area of looming crisis and peculiarities of slow dynamics of deformed systems can be sure portents of the fact that the process of destruction epicenter formation is moving to become a superfast catastrophic evolution stage..

  2. K.Kussaiynov, M.S.Duisenbayeva, G.K.Alpysova, E.T.Tanashev, A.Tolynbekov THE INFLUENCE OF UNDERWATER SPARK DISCHARGE ON THE STRUCTURE OF SHUBARKUL COAL
    [article]
    Summary

    Nowadays petroleum is the main source of organic raw materials. Its limited world reserves and permanent increase in the cost of production due to involvement in exploitation more hard-to-reach fields stimulates the development of new technologies for chemical processing of alternative organic raw materials. Coal, world reserves of which are substantially larger than those of oil and gas, is considered in the future as one of the basic raw materials for the production of motor fuels and organic synthesis products. In this paper we propose to process Shubarkul coal using electric hydro-pulse technology. Application of electric hydraulic technique brings substantial economic benefits and contributes to significantly reduce harmful emissions into the environment or recycle harmful waste products. Study of influence of electric hydraulic effects on heterogeneous media due to rising costs for energy and mineral resources, the deterioration of the environmental situation is currently necessary and urgent.

  3. B.R. Nussupbekov, D. Zh. Karabekova, S.S. Zhargakova, A.Zh. Beisenbek NONDESTRUCTIVE TESTING FOR DIAGNOSTICS OF PIPELINES
    [article]
    Summary

    Thermal methods of nondestructive testing are widely used for the analysis of the thermal insulation of underground pipelines. In heat methadone nondestructive testing, the thermal energy is distributed in the test object. Temperature field of the object’s surface is a source of information on the characteristics of heat transfer. This article describes the modifications we have developed some of the heat flux sensors. A common element of these devices is the battery thermoelectric sensor special design, acting as a thermoelectric converter heat flow.

  4. K.Kussaiynov, S.E.Sakipova, K.M.Turdybekov, B.A.Ahmadiev, N.N.Shuyushbaeva, J.A.Kuzhuhanova ELECTRO-PULSE TECHNOLOGY OF PRODUCTION HEAT EXCHANGERS FOR EXTRACTING THE HEAT FROM THE GROUND AT SHALLOW DEPTHS
    [article]
    Summary

    The aim of the study is to develop scientific and practical bases of introducing energy-saving heat pump technology to heat and cold supply of residential, public and industrial premises on the basis of alternative and renewable energy sources. The heat exchanger of the heat pump is installed in the wells for groundwater heat. A widely used method of getting well, canals – drilling. Electro drilling, in which electrical energy is directly in the slaughter goes into mechanical work, breaking the rock, is a fundamentally new way of drilling. For its implementation are electro drills of various types and modifications.

  5. T. Neesse, J. Dueck, E. Endres, L. Jakob RECYCLING OF SILICON CARBIDE AND SILICON FROM WAFER SAWING SLURRY
    [article]
    Summary

    In the production of silicon wafers for the photovoltaic industry a wafer saw cutting process is employed to slice the mono- or polycrystalline ingots to wafers. For that, multi-wire sawing using SiC slurry is the main slicing technology in photovoltaic (PV) and semiconductor (SC) industry. The cutting process produces a large quantity of saw dust (kerf). Dependent on the wafer thickness and the diameter of the cutting wire, the amount of sawing chips yields up to 30 – 50% of the ingot weight. This residue contains mainly the abrasive SiC, the Si-abrasion and Fe with other metals coming from the saw wire in a suspension of polyethylen glycol (PEG). They thus constitutes valuable materials which are well suited to be recycled to the photovoltaic industry. A solution of the waste slurry problem is unfortunate, both from an economical and environmental point of view. This paper reports on different concepts and own experiences related to Si and SiC recycling..

  6. B.R. Nussupbekov, A.K. Khassenov, A.Zh. Beisenbek GRINDING TECHNOLOGY OF SILICON METAL
    [article]
    Summary

    In article is presented application silicon, and advantage him(it) in contrast with the other semiconductor. The aims and purposes of processing of metallurgical silicon electrohydraulic way. Proposed optimal processing parameters of the product.The Certain admixture other element in composition metallurgical silicon processed электрогидравлическим way, and got given are compared to product reduced in mechanical grinder. Processing metallurgical silicon on электрогидравлическим installation does not require the greater expenseses for reception powder silicon in necessary proportion.

  7. Medetov N.A.THE STUDY OF THE COMPOSITION OF THE NATURAL NANOSTRUCTURED MATERIAL – CHRYSOTILE ASBESTOS
    [article]
    Summary

    The article discusses the properties of the natural nanostructured material – chrysotile asbestos. The object of the research is produced at the minefield in Zhitikara, Kostanai region. Some areas for possible application of asbestos as a material consisting of nanotubes are offered. Chrysotile fiber has been tested by means of X-ray techniques, including X-ray diffraction and small-angle scattering measurement. The experiments are based on the use of X-ray multifunctional processor.

  8. M. Smirnov, N.A.Mazhenov, N. Aliouane, P. Saint – GregoireANISOTROPIC DISPLACEMENT PARAMETERS AND a-b PHASE TRANSITION IN QUARTZ-TYPE FePO4
    [article]
    Summary

    We present novel results on the mechanism of the a-b structural phase transition (STP) occurring in FePO4. High accuracy X-ray diffraction experiments followed by a structural analysis, allow to get precise information on the thermal disorder change on different atomic sites. The data are analyzed at the light of lattice dynamics simulation results. The rigid unit mode (RUM) approach of the dynamics simulation allows the understanding of the anisotropic displacement parameters (ADPs). Surprisingly, the role of critical fluctuations of the order parameter, in the sense of Landau and Lifshitz theory, appears not relevant in the case of this SPT and the understanding of the dynamics requires the knowledge and analysis of the microscopic details of the system.

  9. K. B. Kopbalina, N.A. Mazhenov EFFECT OF OXYGEN ON THE EXCITED STATE OF COMPLEX ORGANIC MOLECULES
    [article]
    Summary

    This article provides an analysis of the electronic structure of oxygen molecule. The mechanism of quenching of aromatic hydrocarbons luminescence affected by an oxygen molecule is analysed. Since the interaction of triplet oxygen with singlet organic molecules is not possible, an analysis of interaction at excited singlet states is carried out. The interaction of the oxygen molecule with complex organic molecules at excited electron states has a number of interesting effects, the reason of which is not completely clear. It is particularly important in nanostructures, when the size of the particle interaction area is comparable to the size of the reagents. The main parameters obtained by calculation, confirming the mechanism of the spin-orbital interaction are cited.