Vestnik Kemerovskogo Gosudarstvennogo Universiteta

6-14

Authors: K. E. Afanasiev, S. V. Stukolov

The paper presents a numerical model of the wavemaker of single surface waves. Numerical simulations were per-formed with boundary element method, the experimental data were obtained in the Laboratory of Hydrowave Equip-ment (Branch of OAO “26th Central Research Institute” (St. Petersburg)). The paper presents the results of comparing experimental and numerical modeling of the transformation of single waves on a flat slope. The resulting model of the wavemaker will be used to study the interaction between waves surface and onshore facilities with meshless numerical methods, as an alternative to costly laboratory experiments.

22-30

Authors: D. S. Nefyodova, E. V. Nikolaeva, A. S. Poplavnoy, T. P. Fedorova

The paper discusses the mechanisms of superionic conductivity caused by features of the crystal structure, electronic and vibrational spectra of some series of crystals with anion and cation conductivity. Special attention is paid to the symmetry of the sublattices, which differs from the crystal structure in the implementation of superionic transfer.

39-42

Authors: A. G. Apukhtina, N. M. Sergeeva

The paper present the description of gender stereotypes in the Russian linguistic picture of the world attributed to people with intelligence. At the modern stage, gender studies in linguistics demand investigation of the stability of the stereotypes of the past in the modern society.

49-54

Authors: B. P. Aduev, S. S. Grechin, I. Yu. Liskov

The measurements of the emission spectra of single RDX crystals in the predetonation mode when irradiated with an electron beam pulse (0.25 MeV, 20 ns, 40 J/cm2) at the temperatures of 80 K and 300 K are reported. At 300 K, a very narrow emission band with a maximum at 380 nm was revealed. With decreasing of the sample temperature to a shift in the maximum emission band form 380 nm at 300 K to 370 nm at 80 K was found. The temperature dependence on the exciton luminescence bands of RDX in the predetonation mode was measured. An increase in the luminescence intensity with decreasing temperature of the sample at the wavelength of 370 nm was detected. At the wavelength of 460 nm, the temperature dependence of the luminescence intensity was not found. When using the second harmonic of Nd: YAG laser (532 nm, 10 ns, 0.8 J), the possibility of initiating an explosion of PETN polycrystalline was revealed. The dependence of explosion probability on the energy density of the initiating pulse was measured. The critical energy density corresponding to 50 % probability PETN explosion is Hcr = 12.3 J/cm2. The authors assume that at samples initiation by the second harmonic of the laser, ionization of PETN molecules may go by the mechanism of two-photon absorption. The subsequent processes of explosive decomposition, apparently, proceed similarly as in the case of electron-beam exposure.

61-65

Authors: N. Yu. Verteletskaya, L. M. Levchenko, B. M. Shavinsky

With a range of physical methods, the parameters of the porous structure of coals: morphology and particle size, chemical and impurity composition, bottle density, ash level and specific surface area have been defined. Based on the thermoanalytical data results, thermal stability of coal samples has been determined. Oxygen-containing groups have been identified by spectroscopic method. The Аverage particle size of coal is about 5 – 10 microns. Our samples are low-ash coal, their ash level varies in the range from 2.4 to 12 mass percent. The correlation between the ash level of coal and thermal stability is marked.

70-77

Authors: A. T. Zhaykenova, S. N. Uytkybaeva, A. B. Shensizbaeva, M. A. Bazhanova, Zh. T. Eshova, Zh. K. Kairbekov, D. N. Akbaeva, G. S. Polimbetova

The paper focuses on researching the reaction of liquid-phase oxidation of yellow phosphorus (P4) with oxygen and tetrachlormethane in soft conditions in water and butanolic solutions in the presence of homogeneous and heterogeneous catalysts on the basis of copper (II) and the iron(III) acydocomplexes modified by fulvo-and gematomelanic acids to give phosphorus acids and phosphorus acids ethers. The purpose of the research is developing new effective homogeneous and heterogeneous catalysts of P4 liquid-phase oxidation in water and butanolic solutions to receive valuable phosphorus-containing compounds. Using the methods of kinetics, volumometric, redox-potentiometrics, IR-spectroscopy, titration and GS analysis, the kinetics, intermediate and final products were investigated, optimum conditions of reaction of P4 liquid-phase oxidation with O2 and CCl4 in water and butanolic solutions have been defined. Catalytic effect of homogeneous and heterogeneous copper and iron acydocomplexes on the velocity of P4 oxidation by oxygen in water solutions to phosphorus acids and phosphorus acids ethers was found. The studied processes were found to follow the oxidation-reduction mechanism and to consist of two key stages: Cu(II) and Fe(III) reduction by yellow phosphorus to Cu(0) and Fe(I) with formation of phosphorus acids and phosphorus acids ethers and Cu(I) oxidation to Cu(II) with Fe(II) occidation to Fe(III) by oxygen or tetrachlormethane. Yellow phosphorus was effectively oxidized mainly to tributylphosphites in butanol-toluene solutions of copper (II) acydocomplexes, and to dibutylphosphites in the presence of iron (III) chloride. The results of the research can serve as the basis for developing effective catalytic systems for new "non-chlorine" ecologically safe catalytic ways of receiving valuable organic and inorganic phosphorus-containing compounds. Thus, yellow phosphorus was found to be effectively oxidized with O2 and CCl4 in soft conditions in water and butanolic solutions of copper (II) and iron(III) acydocomplexes to give phosphorus acids and phosphorus acids ethers with high yields (80 – 100 %).

80-82

Authors: Yu. A. Zakharov, V. M. Pugachev, A. N. Popova, G. A. Rostotvsev, А. S. Bogomyakov

The features of synthesis and the properties of Fe-Co system nanosize powders obtained by reduction of Fe and Co water solutions of salt at 80-90 ºC (i.e. at the conditions close to normal) are investigated by the methods of wide-angle X-ray diffraction, element analysis, electronic microscopy. The magnetic characteristics of the product are considered. Dependence of magnetic properties and chemical compound of products is determined.

88-90

Authors: A. S. Luzgarev, T. B. Tkachenko, A. A. Moroz, S. V. Luzgarev

The possibility of obtaining stable dispersions of carbon materials in organic solvents (benzene, toluene) and solu-tions of HRSR polydimethylsiloxane rubber with methods of mechanical and ultrasonic dispersion was studied. Stable uniform dispersion was received in solution of polydimethylsiloxane rubber using submersible ultrasonic disperser. The resulting dispersions in solvents are used for chemical functionalization, while dispersion in the HRS solution is used in production of modified polydimethylsiloxane films.

94-99

Authors: V. E. Messerle, A. B. Ustimenko, E. A. Merkulova

A vital objective of the coal thermal engineering is coal enrichment and upgrading its quality by increasing its reac-tivity. The increasing of chemical reactivity of coal is achieved by means of its mechanoactivated pulverization, though one of the problems is defining the chemical activity of the mechanically activated micropulverized coal. The paper presents a calculation and experimental method of defining the chemical activity of coal by the ignition temperature of the pulverized coal mixture. The «Plasma-coal» program is described and the calculation of the pulverized coal mixture obtained using the experimental device in the Laboratory #7.1 of the Institute of Technology of the Siberian Branch of the RAS is indicated. A comparison of the experimental and calculated data is also provided.

104-108

Authors: A. N. Saliev, A. G. Levchenko, R. E. Yakovenko, G. B. Narochny, N. D. Zemlyakov, A. P. Savostianov

A laboratory unit allowing investigation of the process of layered gasification of coal and carbon-containing mate-rials in the wide range of technological parameters was developed. The description of its major components and nodes, experimental techniques and analysis of gasification products is applied. The data about investigation of the gasification process of different coal ranging are given.

113-118

Authors: R. I. Furega, B. P. Aduev, D. R. Nurmukhametov

Thresholds of explosive degradation of PETN with different additives in the laser exposure were measured, with the additives being Al, Al-C, Ni, Co, «Kemerit ®», nanoparticles with different content Al/Al2O3. The expansion velocity of the explosion products of certain materials was measured. Thresholds of explosive decomposition were measured with regard of the initial temperature and the melted extruded samples of Ni-C and Al. In prersence of 0.1 % Al as additive, the sensitivity is shown to decrease, as compared to samples containing no additives. This allows us to consider this part of mixtures a promising material for light detonators.