排序方式: 共有20条查询结果,搜索用时 15 毫秒
1.
D. A. Artemenkov V. Bradnova A. A. Zaitsev P. I. Zarubin I. G. Zarubina R. R. Kattabekov N. K. Kornegrutsa K. Z. Mamatkulov P. A. Rukoyatkin V. V. Rusakova R. Stanoeva 《Physics of Atomic Nuclei》2015,78(6):794-799
The charge topology of coherent-dissociation events is presented for 11С and 12N nuclei of energy 1.2 GeV per nucleon bombarding nuclear track emulsions. This topology is compared with respective data for 7Be, 8,10B, 9,10C, and 14N nuclei. 相似文献
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D. A. Artemenkov A. A. Bezbakh V. Bradnova M. S. Golovkov A. V. Gorshkov P. I. Zarubin I. G. Zarubina G. Kaminski N. K. Kornegrutsa S. A. Krupko K. Z. Mamatkulov R. R. Kattabekov V. V. Rusakova R. S. Slepnev R. Stanoeva S. V. Stepantsov A. S. Fomichev V. Chudoba 《Physics of Particles and Nuclei Letters》2013,10(5):415-421
Nuclear track emulsion is exposed to a beam of radioactive 8He nuclei with an energy of 60 MeV and enrichment of about 80% at the ACCULINNA separator. Measurements of 278 decays of the 8He nuclei stopped in the emulsion allow the potential of the α spectrometry to be estimated and the thermal drift of 8He atoms in matter to be observed for the first time. 相似文献
3.
D. Razzokov O. B. Ismailova Sh. I. Mamatkulov O. V. Trunilina A. M. Kokhkharov 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2014,88(9):1500-1506
The complex dielectric permittivity of aqueous solutions of tetrahydrofuran and dimethylformamide in wide ranges of temperature (220–300 K) and pressure (0.1–12 MPa) is studied by means of molecular dynamics. The autocorrelation functions of the dipole moments of molecules are calculated. Dielectric permittivity spectra are obtained. The dielectric relaxation times are determined as functions of the tetrahydrofuran and dimethylformamide concentrations in the indicated binary mixtures. The dielectric relaxation frequency shifts toward low frequencies in the range of tetrahydrofuran and dimethylformamide concentrations x ≤ 0.5 molar fraction, due to the formation of heteromolecular structures with hydrogen bonds. This is confirmed by the negative values of the excess dielectric permittivities of binary solutions at x ~ 0.3–0.4 molar fraction. 相似文献
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Martin M Lastapis M Riedel D Dujardin G Mamatkulov M Stauffer L Sonnet P 《Physical review letters》2006,97(21):216103
At low temperature (5 K), a single biphenyl molecule adsorbed on a Si(100) surface behaves as a bistable device which can be reversibly switched by electronic excitation with the scanning tunneling microscope tip. Density functional theory suggests that the biphenyl molecule is adsorbed with one dissociated hydrogen atom bonded to a neighbor surface silicon atom. By desorbing this hydrogen atom with the STM tip, the interaction of the molecule with the surface is modified such that it becomes transformed into a multistable device with four stable states having switching yields increased by almost 2 orders of magnitude. 相似文献
6.
D. A. Artemenkov V. Bradnova G. I. Britvich A. A. Zaitsev P. I. Zarubin I. G. Zarubina V. A. Kalinin R. R. Kattabekov N. K. Kornegrutsa M. Yu. Kostin A. V. Maksimov K. Z. Mamatkulov E. Mitseva A. Neagu V. A. Pikalov M. K. Polkovnikov P. A. Rukoyatkin V. V. Rusakova V. R. Sarkisyan R. Stanoeva E. Firu M. Haiduc S. P. Kharlamov 《Physics of Atomic Nuclei》2017,80(6):1126-1132
The results obtained by estimating the contribution of 8Be and 9B nuclei to the coherent dissociation of 10C, 10B, and 12C relativistic nuclei in nuclear track emulsions (“white” stars) are presented. The selection of white stars accompanied by 9B leads to a distinct peak appearing in the distribution of the excitation energy of 2α2p ensembles and having a maximum at 4.1 ± 0.3 MeV. A 8Be nucleus manifests itself in the coherent-dissociation reaction 10B → 2He + H with a probability of (25 ± 5)%, (14 ± 3)% of it being due to 9B decays. The ratio of the branching fractions of the 9B + n and 9Be + p mirror channels is estimated at 6 ± 1. An analysis of the relativistic dissociation of 12C nuclei in a nuclear track emulsion revealed nine 3α events corresponding to the Hoyle state. 相似文献
7.
Mamatkulov SI Khabibullaev PK Netz RR 《Langmuir : the ACS journal of surfaces and colloids》2004,20(11):4756-4763
We studied the water density profile close to spherical and planar hydrophobic objects using molecular dynamics (MD) simulations. For normal pressure and room temperature, the depletion layer thickness of a planar substrate is approximately 2.5 Angstroms. Even for quite large spherical solutes with a radius of R = 18 Angstroms, the depletion layer thickness is reduced by 30%, which shows that substrate curvature and roughness is an experimentally important factor. Rising temperature leads to a substantial increase of the depletion layer thickness. The compressibility of the depletion layer is found to be surprisingly small and only approximately 5 times higher than that of bulk water. A high electrostatic surface potential of 0.5 V is found, which presumably plays an important role in the presence of charged solutes, since it can promote adsorption into the interfacial layer. 相似文献
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K. Z. Mamatkulov R. R. Kattabekov S. S. Alikulov D. A. Artemenkov R. N. Bekmirzaev V. Bradnova P. I. Zarubin I. G. Zarubina N. V. Kondratieva N. K. Kornegrutsa D. O. Krivenkov A. I. Malakhov K. Olimov N. G. Peresadko N. G. Polukhina P. A. Rukoyatkin V. V. Rusakova R. Stanoeva S. P. Kharlamov 《Physics of Atomic Nuclei》2013,76(10):1224-1229
The charge topology in the fragmentation of 10C nuclei in a track nuclear emulsion at an energy of 1.2 GeV per nucleon is studied. In the coherent dissociation of 10C nuclei, about 82% of events are associated with the channel 10C → 2α+ 2p. The angular distributions and correlations of product fragments are presented for this channel. It is found that among 10C → 2α+ 2p events, about 30% are associated with the process in which dissociation through the ground state of the unstable 9Beg.s. nucleus is followed by 8Beg.s. + p decays. 相似文献
10.
R. R. Kattabekov K. Z. Mamatkulov D. A. Artemenkov V. Bradnova S. Vokál D. M. Zhomurodov P. I. Zarubin I. G. Zarubina Z. A. Igamkulov N. V. Kondratieva N. K. Kornegrutsa D. O. Krivenkov A. I. Malakhov G. I. Orlova N. G. Peresadko N. G. Polukhina P. A. Rukoyatkin V. V. Rusakova R. Stanoeva M. Haiduc S. P. Kharlamov 《Physics of Atomic Nuclei》2010,73(12):2110-2115
A nuclear track emulsion was exposed to a mixed beam of relativistic 12N, 10C, and 7Be nuclei having a momentum of 2 GeV/c per nucleon. The beam was formed upon charge exchange processes involving 12C primary nuclei and their fragmentation. An analysis indicates that 10C nuclei are dominant in the beam and that 12N nuclei are present in it. The charge topology of relativistic fragments in the coherent dissociation of these nuclei is presented. 相似文献