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51.
52.
V.?M.?TimokhinEmail author A.?I.?Rykachevskii I.?V.?Miroshnikov V.?Yu.?Sergeev M.?M.?Kochergin A.?N.?Koval’ E.?E.?Mukhin S.?Yu.?Tolstyakov A.?V.?Voronin 《Technical Physics Letters》2016,42(8):775-778
A diagnostic technique that is based on measuring the ratios of neutral-helium line strengths has been developed for peripheral distributions of electron temperature and density of tokamak plasma. The main components of the technique are a four-channel filter-lens imaging polychromator (FLIP-4) and a Phantom Miro M110 high-speed camera for recording the images. The polychromator has been assembled, adjusted, and tested on an optical test bench. The optical system was installed on the spherical Globus-M tokamak. Some preliminary experiments were carried out. Images of the plasma-gun jet were obtained at neutralhelium lines. 相似文献
53.
We consider the max-plus analogue of the eigenproblem for matrix pencils, A???x?=?λ???B???x. We show that the spectrum of (A,B) (i.e., the set of possible values of λ), which is a finite union of intervals, can be computed in pseudo-polynomial number of operations, by a (pseudo-polynomial) number of calls to an oracle that computes the value of a mean payoff game. The proof relies on the introduction of a spectral function, which we interpret in terms of the least Chebyshev distance between A???x and λ???B???x. The spectrum is obtained as the zero level set of this function. 相似文献
54.
On the basis of the two-section model of a high-power bipolar transistor, it is shown that the slope of dependence of the
small-signal feedback coefficient on the collector voltage in the presence of defects in the transistor is proportional to
the defect size. The setup for the automated monitoring of the current-distribution nonuniformity in the transistor device
structure from the indicated dependence with using the combination of linearly increasing and small harmonic variations in
the collector voltage is described. The experimental dependences confirming the results of the theoretical analysis are presented. 相似文献
55.
The briquetting of coal slurries from the Anzhersk deposit in the Kuznets Basin is investigated. Petroleum binder and sodium lignosulfonate are employed. The solid carbon phase from the sludge ponds (ash content up to 35%) has adequate briquetting properties when petroleum binder is added. The use of sulfite waste liquor at pressures of 80–100 MPa yields mechanically strong briquets that require additional water protection. 相似文献
56.
A. S. Kirpikov S. V. Karelov S. V. Mamyachenkov V. A. Sergeev 《Russian Journal of Non-Ferrous Metals》2008,49(5):333-335
The anodic oxidation of iron in zinc solutions is carried out using a two-chamber electrolyzer separated by an anionite membrane. The positive effect that copper ions in the solution have on the rate and completeness of the oxidation processes is shown. This method is effective for cleaning the solutions of zinc production and processing the industrial zinc-containing wastes. 相似文献
57.
V. K. Fedorenko R. K. Ivashchenko V. Kh. Kadyrov A. M. Khairutdinov V. V. Sergeev 《Powder Metallurgy and Metal Ceramics》1991,30(11):921-926
Translated from Poroshkovaya Metallurgiya, No. 11 (347), pp. 24–30, November, 1991. 相似文献
58.
59.
V. I. Vereshchagin M. A. Sergeev Yu. V. Borodin O. G. Shevelev 《Refractories and Industrial Ceramics》1999,40(9-10):429-432
Computer simulation is used to consider the possibility of creation of microcomposite technical ceramics with a high transcrystalline mobility and to show that allowance for the exchange interactions of atoms through nonequilibrium electrostatic fields causes formation of self-organized mesoscopic (SM) blocks, which provide microplasticity and relaxation of strain at lower temperatures. The simulation results agree with the yield stria observed in mechanical compression tests of A12,O3 specimens obtained from sol-gel solutions. It is shown that the yield stria are directly connected with the sizes of the SM blocks. The high mobility of SM blocks also promotes a decrease in the temperature of the gel → A12O3 transformation. 相似文献
60.
S. V. Karelov O. S. Anisimova S. V. Mamyachenkov V. A. Sergeev 《Russian Journal of Non-Ferrous Metals》2008,49(2):82-85
The process of leaching of lead cakes of zinc production in a complexing solvent—trilon B, which makes it possible to selectively extract lead into the solution—is studied with the use of mathematical modeling of the experiment. Its optimum conditions—pH, liquid-to-solid ratio within pulp, and temperature—are determined. The developed flow chart of cake processing provides zinc removal as a single product, recycling of zinc to the basic production, and reduction of current expenditure due to solvent regeneration. 相似文献