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11.
12.
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
13.
A. Jokinen M. Oinonen J. Äystö P. Baumann F. Didierjean P. Hoff A. Huck A. Knipper G. Marguier Yu. N. Novikov A. V. Popov M. Ramdhane D. M. Seliverstov P. Van Duppen G. Walter 《Zeitschrift für Physik A Hadrons and Nuclei》1996,355(1):227-230
The study of the stability of an astrophysically interesting nucleus73Rb was performed by searching itsβ + and proton decay at the ISOLDE facility at CERN. Light rubidium isotopes were produced in a spallation reaction of a niobium target induced by a pulsed 1 GeV proton beam. The previously reported proton-unbound character of73Rb was confirmed and the upper limit for its production cross-section was reduced by more than one order of magnitude. 相似文献
14.
A.E. Barzakh I.Y. Chubukov D.V. Fedorov F.V. Moroz V.N. Panteleev M.D. Seliverstov Y.M. Volkov 《The European Physical Journal A - Hadrons and Nuclei》1998,1(1):3-5
The change in the mean square charge radius and electromagnetic moments of the neutron deficient 155Yb isotope have been determined using resonance ionization spectroscopy in a laser ion source. The data point to an absence
of a marked deformation change for Yb isotopes with N=84−86.
Received: 2 October 1997 / Revised version: 24 October 1997 相似文献
15.
16.
The steady propagation of a thin smouldering front in a half-spacehas been considered. A suitable coordinate transformation hasallowed the region near the leading edge of the front to beexamined for both a maintained planar surface and with surfacecollapse due to material shrinkage. The change in the oxidizerconcentration for a small increment in the propagation speedfor large time and surface collapse has been determined. Theinfluence of two types of nonlinear diffusion on the shape ofthe smouldering front has been found; other cases can be dealtwith in a similar manner. 相似文献
17.
V. L. Gein O. V. Bobrovskaya G. V. Seliverstov P. A. Slepukhin 《Russian Journal of General Chemistry》2016,86(2):300-304
Reaction of 4-aryl-2-hydroxy-4-oxo-2-butenoic acid N-(4-acetylaminosulfonylphenyl)amides with hydrazine hydrate and phenylhydrazine in acetic acid has afforded N-[4-(acetylaminosulfonyl)phenyl]-5-arylpyrazole-3-carboxamides. 相似文献
18.
N. V. Sadovskaya A. Yu. Obvintsev R. S. Khatipov D. I. Seliverstov S. A. Khatipov 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2016,10(5):917-924
The supramolecular structure and tribological properties of filled polytetrafluoroethylene composites irradiated above the melting point of the crystalline phase of the polymer component and the phase transitions in them are investigated. In unirradiated composites, phase separation is observed, that is, the separation of the filler from the polymer matrix. The supramolecular structure of the polymer component does not depend on the nature and concentration of the filler, and it is characterized by the formation of lamellae during sintering and subsequent crystallization. Radiation exposure leads to the disappearance of the phase separation and the formation of axiolites with the radial orientation of fibrils, in the center of which the filler particles are located. Changes in the structure are explained by an increase in interfacial interactions through the radiation grafting of macromolecules (and low-molecular-weight products) to the surface of the filler particles. The linear wear rate of irradiated composites is 50 times lower relative to the unirradiated samples because of the transition from the delamination to abrasive wear mechanism. 相似文献
19.
M.D. Seliverstov A.E. Barzakh I.Ya. Chubukov D.V. Fedorov V.N. Panteleev Yu.M. Volkov 《Hyperfine Interactions》2000,127(1-4):425-430
The study of nuclei far from stability requires high sensitivity of the experimental technique. The method of Resonance Ionization
Spectroscopy in a Laser Ion Source (RIS/LIS) allows one to carry out measurements of the isotope shifts and hyperfine splittings
for isotopes at the production rate about 102 atoms per second. The sensitivity of this method is determined by the high efficiency of the laser ion source and the low
background of the detection system afforded by characteristic α particle registration. The isotope shifts and hyperfine structures
of 155Yb, 154Tm (I=9 and I=2) and 153Tm (I=11/2) have been measured and the isotopic changes in mean square charge radii and nuclear electromagnetic moments have
been determined.
The further development of this experimental method – enhanced Target Ion Source system aimed to suppress thermionic background
– enables direct detection of the photoions and widens the range of the applicability of the RIS/LIS method.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
20.
Seliverstov AN Suleimanov EV Chuprunov EV Somov NV Zhuchkova EM Lelet MI Rozov KB Depmeier W Krivovichev SV Alekseev EV 《Dalton transactions (Cambridge, England : 2003)》2012,41(28):8512-8514
Three new uranyl tungstates, α-, β-Cs(2)[(UO(2))(2)(W(2)O(9))], and Rb(6)[(UO(2))(7)(WO(5))(2)(W(3)O(13))O(2)], have been obtained by high temperature solid state reactions. All three compounds display novel structure topologies: α- and β-Cs(2)[(UO(2))(2)(W(2)O(9))] are based upon layers with a new topology that can be related to the uranophane topology; Rb(6)[(UO(2))(7)(WO(5))(2)(W(3)O(13))O(2)] is a rare example of a non-molecular inorganic phase with layers containing oxo-tungstate trimers. The structural relationship between α- and β-Cs(2)[(UO(2))(2)(W(2)O(9))] can be assigned to polytypism. 相似文献