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HARUN REŞIT YAZAR 《Pramana》2013,81(4):579-585
The sd-interacting boson approximation (sd-IBA) and the df-interacting boson approximation (df-IBA) can be related to each other and the states of the interacting boson approximation model can be identified with the fully symmetric states in the sdf interacting boson approximation model. A systematic study of the sdf-IBA model showed that the constructed Hamiltonian can successfully describe the strong octupole correlations in the deformed nuclei. We showed that the interacting boson approximation may account for many of these K π ?=?0+ states. It was found that the calculated energy spectra of the gadolinium isotopes agree quite well with the experimental data. The observed B(E2) values were also calculated and compared with the experimental data. 相似文献
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Shubina ES Tikhonova IA Bakhmutova EV Dolgushin FM Antipin MY Bakhmutov VI Sivaev IB Teplitskaya LN Chizhevsky IT Pisareva IV Bregadze VI Epstein LM Shur VB 《Chemistry (Weinheim an der Bergstrasse, Germany)》2001,7(17):3783-3790
It has been shown by IR and NMR spectroscopy that cyclic trimeric perfluoro-o-phenylenemercury (o-C6F4-Hg)3 (1) is capable of binding closo-[B10H10]2- and closo-[B12H12]2- anions to form complexes [[(o-C6F4Hg)3](B10-H10)]2- (2), [[(o-C6F4Hg)3]2(B10H10)]2-(3), [[(o-C6F4Hg)3](B12H12)]2- (4), and [[(o-C6F4Hg)3]2(B12H12)]2- (5). According to IR data, the bonding of the [B10H10]2- and [B12H12]2- ions to the macrocycle in these complexes is accomplished through the formation of B-H-Hg bridges. Complexes 2, 3, and 5 have been isolated in analytically pure form and have been characterized by spectroscopic means. X-ray diffraction studies of 3 and 5 have revealed that these compounds have unusual sandwich structures, in which the polyhedral di-anion is located between the planes of two molecules of 1 and is bonded to each of them through two types of B-H-Hg bridges. One type is the simultaneous coordination of a B-H group to all three Hg atoms of the macrocycle. The other type is the coordination of a B-H group to a single Hg atom of the cycle. According to X-ray diffraction data, complex 2 has an analogous but half-sandwich structure. The obtained complexes 2-5 are quite stable; their stability constants in THF/acetone (1:1) at 20 degrees C have been determined as 1.0 x 10(2)Lmol(-1), 2.6 x 10(3)L(2)mol(2), 0.7 x 10(2)Lmol(-1), and 0.98 x 10(3)L(2)mol(-2), respectively. 相似文献
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Juliana S Luz Celso RR Ramos Márcia CT Santos Patricia P Coltri Fernando L Palhano Debora Foguel Nilson IT Zanchin Carla C Oliveira 《BMC biochemistry》2010,11(1):22
Background
The archaeal exosome is formed by a hexameric RNase PH ring and three RNA binding subunits and has been shown to bind and degrade RNA in vitro. Despite extensive studies on the eukaryotic exosome and on the proteins interacting with this complex, little information is yet available on the identification and function of archaeal exosome regulatory factors. 相似文献5.
Fast generation of random bits based on polarization noises in a semiconductor vertical-cavity laser
V. N. Chizhevsky 《Optics and Spectroscopy》2011,111(5):689-694
It is experimentally demonstrated that intensity fluctuations on a selected polarization in a semi-conductor vertical-cavity
laser are an effective source of entropy for fast generation of random bits. The effective generation rate is shown to be
from 100 Mbps to 4.5 Gbps at the discretization frequency of 100 MHz, depending on how the random bits are extracted from
the polarization noise. The generated sequences of random bits are characterized by low bias and absence of correlation between
bits and successfully pass main statistical randomness tests. 相似文献
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I.T. Chizhevsky N.V. Rastova N.E. Kolobova F.V. Petrovskii L.E. Vinogradova L.A. Leites 《Tetrahedron letters》1985,26(30):3605-3608
Cationic hydroxyallylolefin π-complexes whose stabilization of the α-carbocationic centre is achieved with simultaneous participation of both rhodium and oxygen atoms were prepared from the reaction of HCl or F2POOH with aldehyde in ether. 相似文献
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V. N. Chizhevsky 《Optics and Spectroscopy》2010,108(3):343-346
It is experimentally demonstrated that the semiconductor vertical cavity laser with the pump current modulation, operating
in the regime of polarization bistability, can be an effective source of true random bits with the rate of generation up to
several Mbps, which is determined by the modulation frequency. The generated sequences are characterized by the low bias and
low correlations between generated bits. 相似文献
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Zinevich T. V. Safronov A. V. Vorontsov E. V. Petrovskii P. V. Chizhevsky I. T. 《Russian Chemical Bulletin》2001,50(9):1702-1704
Russian Chemical Bulletin - 相似文献