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61.
A.A. Yukhimchuk V.A. Apasov Yu.I. Vinogradov A.N. Golubkov E.V. Gornostaev S.K. Grishechkin L.V. Drakin N.A. Zagoruiko V.N. Istratov P.D. Ishkov A.A. Kononenko G.I. Karyakin V.G. Klevtsov V.A. Klisch V.N. Lobanov A.P. Maksimenko S.S. Matveev A.E. Nikitin V.I. Pustovoy I.I. Sukhoi V.M. Solyankin B.N. Tenyaev V.M. Kharitonov 《Hyperfine Interactions》1999,119(1-4):341-344
A facility is described that allows safe handling of high tritium gas activity as dozens kilocuries in a regular laboratory
environment. It is used to make and deliver into the target a mixture of specific isotopic composition with the contamination
requirement of 10-7 v.f. for Z>1 elements, and recover it upon completion of operation. With this facility, efforts have been accomplished to investigate
into the muon catalyzed fusion on two targets – liquid tritium and high-pressure tritium types. Also, the operation range
was 0.1–120 MPa for pressure and 20–800 K for temperature and the amount of tritium used was about 100 kCi. The facility showed
reliability in operation without indications of radiation beyond the safety level.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
62.
M. B. Trzhaskovskaya Yu. I. Kharitonov V. I. Nefedov V. G. Yarzhemskii 《Optics and Spectroscopy》2000,88(4):489-497
Relativistic calculations of differential cross sections for photoionization are performed and the behavior of parameters β, γ, and δ describing the angular distribution of photoelectrons in the quadrupole approximation is studied. The calculations were carried out for a number of atoms for kinetic energies of photoelectrons E k ≈50 000 eV. The electronic wave functions of the initial and final states are calculated by the Dirac-Fock method taking into account the exchange interaction and a hole produced in the atomic shell upon photoionization. The dependence of parameters β, γ, and δ on the physical assumptions used in the calculations is studied. Comparison with nonrelativistic calculations shows that relativistic values of the nondipole parameters γ and δ can be substantially different even at low energies of photoelectrons. Our calculations of nondipole parameters γ and δ for the 2p-shell of the Kr atom better agree with the recent experimental data than nonrelativistic calculations performed earlier taking approximately into account the exchange interaction and neglecting a hole. 相似文献
63.
Madhumita Mukherjee Tanya Das Saswata Bose Chapal Kumar Das Alexander P. Kharitonov Kaushik Banik Tham Nguyen Chung Gunter Mennig 《Macromolecular Symposia》2009,277(1):24-35
Kevlar fiber was fluorinated and oxy-fluorinated directly in presence of undiluted fluorine and fluorine gas mixture and processed with Polycarbonate and LCP at 320 °C under 20 rpm in a twin-screw extruder. The composites were then injection molded into dumbbell shaped specimens under different conditions like various mold temperatures, injection temperatures, injection speeds and mold filling rates. Various physico-chemical characterizations have been performed under definite processing parameter. Orientation of fibers under different injection parameters was evaluated using mold flow simulation technique. Most injection molded or extruded structures however, exhibit non-uniform fiber orientation across the final parts, with a diverging variety of different local fiber orientation states. Distinct skin and core regions were observed in the injection molded parts and it has also been found out that fiber orientation is different in skin and core region for both unmodified and modified derivative, which affects the flow behavior. Processing parameters significantly affect the fiber orientation pattern in the skin and core region for all blended materials. It is worth mentioning that the maximum fiber orientation occurred during the extrusion process at the wall but different extent of fiber orientation is observed during the injection molding depending on the shape of the dumbbell specimen. This fibrillation has been corroborated by the SEM study in both the skin and core region. 相似文献
64.
O. V. Kharitonov L. A. Firsova E. A. Chuveleva 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2009,83(7):1220-1222
The separation of rare-earth metals (REMs) by complex formation displacement chromatography with the use of various retaining
ions (Cu, Ni, Zn, Co) and nitrile triacetate as an eluent was studied. In the series Ni, Zn, Co, the displacer concentration
in the REM zone decreased, while the efficiency of separation increased, and the competing ion was accumulated in the system.
With copper used as a retaining ion, the accumulation factor of the competing ion was absent, and the separation of REMs was
more effective, in spite of a higher concentration of the competing ion in the zone of the elements to be separated.
Original Russian Text ? O.V. Kharitonov, L.A. Firsova, E.A. Chuveleva, 2009, published in Zhurnal Fizicheskoi Khimii, 2009,
Vol. 83, No. 7, pp. 1374–1376. 相似文献
65.
66.
A. A. Akhsakhalyan A. D. Akhsakhalyan L. A. Mazo A. I. Kharitonov 《Bulletin of the Russian Academy of Sciences: Physics》2014,78(1):53-56
A two-stage method for manufacturing multilayer mirrors in the form of the sector of revolution figure is presented. The method is to fabricate a mirror in the form of concave paraboloid of revolution for wavelength λ = 0.154 nm. The collimating mirror’s properties are analyzed using a microfocus X-ray source. 相似文献
67.
A. B. Kruglov V. B. Kruglov P. G. Struchalin V. S. Kharitonov 《Bulletin of the Lebedev Physics Institute》2014,41(7):192-195
The results of the development of the techniques for determining the thermal resistance between a fuel and a fuel-element cladding and the fuel thermal conductivity, oriented to applications under conditions of a shielding box, are described. The schematic of the laboratory setup is presented, using which the operability of the techniques is shown on a fuel element prototype with dense fuel simulators. 相似文献
68.
V. M. Fomin V. F. Chirkashenko V. F. Volkov A. M. Kharitonov 《Thermophysics and Aeromechanics》2014,20(6):669-678
Based on the analysis of various aspects of creating a supersonic transport aircraft of the second generation, the necessity of developing unconventional active methods of sonic boom level reduction is demonstrated. Surface cooling is shown to exert a significant effect on formation of the disturbed flow structure up to large distances from the body by an example of a supersonic flow around a body of revolution. A method of reducing the intensity of the intermediate shock wave and excess pressure momentum near the body is proposed. This method allows the length of the reduced (by 50%) sonic boom level to be increased and the bow shock wave intensity in the far zone to be reduced by 12%. A possibility of controlling the process of formation of wave structures, such as hanging pressure shocks arising near the aircraft surface, is demonstrated. The action of the cryogenic mechanism is explained. 相似文献
69.
N. P. Adamov L. N. Puzyrev A. M. Kharitonov E. A. Chasovnikov A. A. Dyad’kin A. N. Krylov 《Journal of Applied Mechanics and Technical Physics》2014,55(5):870-876
The experimental equipment, model, test conditions, and methods used for determining the streamwise damping on a setup with free oscillations on rolling bearings are described. Characteristics of aerodynamic damping of the model with two positions of the rotation axis and Mach numbers M∞ = 2, 4, and 6 are measured. Irregular oscillations of the model with a greater displacement of the rotation axis with respect to the longitudinal axis are found to arise at M∞ = 2. 相似文献
70.
M. E. Mironov E. E. Shul’ts M. M. Shakirov Yu. V. Kharitonov G. A. Tolstikov 《Russian Journal of Organic Chemistry》2012,48(6):840-850
15,16-Epoxy-16-(3-trimethylsiloxybuta-1,3-dien-1-yl)labdanoids were synthesized, and their reactions with cyclic dienophiles (1,4-benzoquinone, 1,4-toluquinone, 2-bromo-6-methyl-1,4-benzoquinone, and N-methylmaleimide) were studied. The reactions with unsymmetrically substituted benzoquinones were not selective. Methods for the preparation of hybrid compounds containing furan diterpenoid and substituted naphthoquinone, octahydroisoindoletrione, or hexahydroisoindoledione fragments were proposed. 相似文献