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21.
S. V. Grigoriev N. A. Grigoryeva K. S. Napol’skii A. P. Chumakov A. A. Eliseev I. V. Roslyakov H. Eckerlebe A. V. Syromyatnikov 《JETP Letters》2011,94(8):635-641
Magnetic properties of spatially ordered arrays of interacting nanofilaments have been studied by means of small-angle diffraction
of polarized neutrons. Several diffraction maxima or rings that correspond to the scattering of the highly ordered structure
of pores/filaments with hexagonal packing have been observed in neutron scattering intensity maps. The interference (nuclear-magnetic)
and pure magnetic contributions to the scattering have been analyzed during the magnetic reversal of the nanofilament array
in a field applied perpendicular to the nanofilament axis. The average magnetization and the interference contribution proportional
to it increase with the field and are saturated at H = H
S
. The magnetic reversal process occurs almost without hysteresis. The intensity of the magnetic contribution has hysteresis
behavior in the magnetic reversal process for both the positive and negative fields that form the field dependence of the
intensity in a butterfly shape. It has been shown that this dependence is due to the magnetostatic interaction between the
filaments in the field range of H ≤ H
S
. A theory for describing the magnetic properties of the arrays of interacting ferromagnetic nanofilaments in the magnetic
field has been proposed. 相似文献
22.
Generalov A. V. Brzhezinskaya M. M. Vinogradov A. S. Püttner R. Chernysheva M. V. Lukashin A. V. Eliseev A. A. 《Physics of the Solid State》2011,53(3):643-653
The Cu 2p, I 3d, and C 1sX-ray absorption spectra of the CuI@SWCNT nanocomposite prepared by filling single-walled carbon nanotubes (SWCNTs) with the
CuI melt by the capillary technique have been measured with a high-energy resolution using the equipment of the Russian-German
beamline at the BESSY electron storage ring. In order to characterize the electronic structure of the nanocomposite and possible
changes in the atomic and electronic structures of CuI and SWCNTs in the CuI@SWCNT nanocomposite, the spectra obtained have
been analyzed in the framework of the quasi-molecular approach by comparing with the spectra of the pristine (CuI and SWCNT)
and reference (CuO) systems. It has been revealed that the encapsulation of the CuI compound inside SWCNTs is accompanied
by changes in the electronic structure of CuI and SWCNTs due to the chemical interaction between the filler and carbon nanotubes
and the change in the atomic structure of CuI. 相似文献
23.
A. L. Lapidus O. L. Eliseev M. V. Tsapkina P. E. Davydov O. S. Belousova 《Kinetics and Catalysis》2010,51(5):731-735
The dependence of the properties of supported cobalt catalysts for hydrocarbon synthesis from CO and H2 on the porous structure of the supports (aluminas and aluminosilicates) is reported. A correlation between the mean Co0 crystallite size and the pore diameter of the support is established. The specific CO conversion rate falls sharply as the
size of Co0 particles decreases to 6 nm and below. The methane and C5+ hydrocarbon selectivities as a function of the Co0 crystallite size pass through an extremum. 相似文献
24.
A. Kankainen G. K. Vorobjev S. A. Eliseev W. Huang J. Huikari A. Jokinen A. Nieminen Yu. N. Novikov H. Penttilä A. V. Popov S. Rinta-Antila H. Schatz D. M. Seliverstov Yu. P. Suslov J. Äystö 《The European Physical Journal A - Hadrons and Nuclei》2005,25(3):355-363
Decay properties of neutron-deficient exotic nuclei close to A=80 have been investigated at the IGISOL facility. The studied nuclei, 81Y, 81Sr, 81mKr, 85Nb, 85Zr, 86Mo and 86Nb, were produced by a 32S beam from the Jyv?skyl? isochronous cyclotron on 54Fe and natNi targets. The internal conversion coefficient for a 190.5 keV isomeric transition in 81mKr has been measured and the internal transition rate has been determined. The internal transition rate has been used to estimate
a neutrino capture rate on 81Br, which yields a log ft of 5.13±0.09 for the reaction 81Br( ν, e
-)81mKr. A new isomer with a half-life of 3.3±0.9 s has been observed in 85Nb. The existence of an earlier reported isomer with a half-life of 56 s in 86Nb has not been confirmed. 相似文献
25.
A. Kankainen L. Batist S. A. Eliseev V. -V. Elomaa T. Eronen U. Hager J. Hakala A. Jokinen I. Moore Yu. N. Novikov H. Penttilä K. Peräjärvi A. V. Popov S. Rahaman S. Rinta-Antila P. Ronkanen A. Saastamoinen D. M. Seliverstov T. Sonoda G. K. Vorobjev J. Äystö 《The European Physical Journal A - Hadrons and Nuclei》2006,29(3):271-280
The masses of 80, 81, 82, 83Y, 83, 84, 85, 86, 88Zr and 85, 86, 87, 88Nb have been measured with a typical precision of 7keV by using the Penning trap setup at IGISOL. The mass of 84Zr has been measured for the first time. These precise mass measurements have improved Sp and QEC values for astrophysically important nuclides. 相似文献
26.
V. V. Eliseev Yu. M. Vetyukov T. V. Zinov’eva 《Journal of Applied Mechanics and Technical Physics》2011,52(3):450-458
This paper considers a solution of the problem of coupled hydroelasticity for a helicoidal shell in a rigid tube with a flowing
ideal incompressible fluid, which is of interest for the design of heat exchange systems. The flow is considered potential,
and boundary conditions are imposed on the deformed surface. The version of the classical theory of elastic shells as the
Lagrangian mechanics of deformable surfaces is used. The longitudinal-torsional vibrations of a long shell and a naturally
twisted rod are studied. It is established that the obtained hydrodynamic loads are conservative, so that a divergence type
instability is possible. A critical combination of parameters is determined. 相似文献
27.
A. V. Melnikov L. G. Eliseev S. A. Grashin A. V. Gudozhnik S. E. Lysenko V. A. Mavrin S. V. Perfilov V. A. Vershkov L. I. Krupnik A. A. Chmyga A. D. Komarov A. S. Kozachok C. Hidalgo A. Alonso J. L. dePablos M. A. Pedrosa 《Czechoslovak Journal of Physics》2005,55(12):1569-1578
Comparison of the plasma electric potential evolution in the T-10 tokamak and TJ-II stellarator was performed. The core potential
was measured by the heavy-ion beam probing and the edge potential was measured by Langmuir probe. The intrinsic potentials
in both devices are different in sign, positive in TJ-II low-density discharge and negative in T-10 higher-density discharges,
but during ECRH they evolve similarly: the potential becomes more positive, and increase of ECRH power leads to stronger rise
of core potential.
Presented at the Workshop “Electric Fields, Structures and Relaxation in Edge Plasmas”, Tarragona, Spain, July 3–4, 2005. 相似文献
28.
29.
A. Babaev E. Brachman G. Eliseev A. Ermilov Yu. Galaktionov Yu. Gorodkov Yu. Kamishkov E. Leikin V. Lubimov L. Ponomarev V. Shevchenko V. Tiunchik O. Zeldovich V. Böhmer J. Engler W. Flauger H. Keim F. Mönnig H. Schopper 《Nuclear Physics B》1976,116(1):28-50
The diffraction dissociation reaction n + p → (pπ?) + p was studied at the Serpukhov accelerator neutron beam in the momentum range 35–65 GeV/c in an electronics experiment. The differential cross sections of the reaction are analysed and presented in the five-dimensional phase space . The backward peak observed in the distribution over if cosθin GJ 1 in the Gottfried-Jackson frame of if(pπ) is interpreted as a baryon-exchange effect. The angular distribution of the (pπ?) system is compared with Deck-type models. 相似文献
30.