排序方式: 共有17条查询结果,搜索用时 31 毫秒
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Unatlokov I. B. Afashokov Yu. Z. Dzaparova I. M. Dzhappuev D. D. Gorbacheva E. A. Khadzhiev M. M. Kostyuk M. G. Kochkarov M. M. Kudzhaev A. U. Kurenya A. N. Mikhailova O. I. Novoseltsev Yu. F. Novoseltseva R. V. Petkov V. B. Romanenko V. S. Striganov P. S. Yanin A. F. 《Physics of Atomic Nuclei》2021,84(6):1059-1064
Physics of Atomic Nuclei - The Baksan Neutrino Observatory setups are currently performing search for neutrino and ultra-high-energy gamma-ray counterparts of the events on the Gamma-ray... 相似文献
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V. B. Petkov R. V. Novoseltseva M. M. Boliev I. M. Dzaparova M. M. Kochkarov A. N. Kurenya Yu. F. Novoseltsev P. S. Striganov A. F. Yanin 《JETP Letters》2018,107(7):398-401
In the data obtained at the Baksan underground scintillation telescope (BUST), electron neutrinos and antineutrinos with energies above 21 MeV have been sought in coincidence with the GW150914, GW151226, GW170104, GW170608, GW170814, and GW170817 gravitational wave events. No neutrino signals from gravitational wave events have been detected in the interval of ±500 s at the Baksan underground scintillation telescope. Bounds on the fluxes of low-energy electron neutrinos and antineutrinos from astrophysical sources of gravitational bursts have been obtained. 相似文献
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Polina Novoseltseva Dr. Haijun Li Dr. Xiang Wang Dr. Francoise Sauriol Prof. Dr. Suning Wang 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(10):2276-2284
New chiral N,C-chelate organoboron compounds based on benzylideneamines (bza) with the general formula of B(bza-R)Mes2 (R=H or Me; Mes=mesityl) are reported. A chiral substituent group R- or S-CH(CH3)Ph (Ph=phenyl) was introduced to the imine center, which imposed a previously unobserved pseudo- or axial-chirality on the BMes2, creating distinct diastereomers. NMR spectroscopic studies established that the diastereomers undergo slow exchange in solution at ambient temperature. The chiral N,C-chelate B(bza-R)Mes2 molecules undergo photoisomerization in the same manner as their non-chiral analogues, generating chiral BN-cyclooctatriene (BN-COT) derivatives. Most significantly, by tracking the photoisomerization with circular dichroism (CD) and 1H NMR spectra along with time-dependent density functional theory (TD-DFT) computational studies, the photoisomerization was established to proceed in a highly stereoselective manner, that is, one diastereomer converts exclusively to the corresponding diastereomer product in the photoreaction. 相似文献
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A. G. Bogdanov R. P. Kokoulin Yu. F. Novoseltsev R. V. Novoseltseva V. B. Petkov A. A. Petrukhin 《Bulletin of the Russian Academy of Sciences: Physics》2011,75(3):411-413
The energy spectrum of cosmic ray muons in the range of several TeV to PeV obtained through the analysis of multiple interactions
of muons (the pair meter technique) in the Baksan Underground Scintillation Telescope (BUST) is presented. Results are compared
with prior BUST data on the muon energy spectrum measurements and data of other experiments, along with calculations for different
muon spectrum models. 相似文献
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M. M. Kochkarov I. A. Alikhanov M. M. Boliev I. M. Dzaparova R. V. Novoseltseva Yu. F. Novoseltsev V. B. Petkov V. I. Volchenko G. V. Volchenko A. F. Yanin 《Physics of Particles and Nuclei》2016,47(6):980-985
Preliminary results of a neutron background measurement at the Baksan underground scintillation telescope (BUST) are presented. The external planes of the BUST are fully covered with standard scintillation detectors shielding the internal planes and suppressing thus background events due to cosmogenic and local radioactivity. The shielded internal planes were used as target for the neutron flux registration. The experimental method is based on the delayed coincidences between signals from any of the BUST counters. It is assumed that the first signal is due to inelastic interaction of a neutron with the organic scintillator, while the second signal comes from the decay of an unstable radioactive isotope formed when the fast neutron interacts with the 12C nuclei. Using the Monte-Carlo method (GEANT4) we also simulated propagation of neutrons through a layer of scintillator. The experimentally found muon induced neutron flux is j =1.3-0.3+0.7 ×10-10cm-2s-1 for neutron energies E ≥ 22MeV, which is in a qualitative agreement with similar measurements of other underground laboratories as well as with predictions of the GEANT4. 相似文献
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R. V. Novoseltseva M. M. Boliev I. M. Dzaparova M. M. Kochkarov Yu. F. Novoseltsev V. B. Petkov V. I. Volchenko G. V. Volchenko A. F. Yanin 《Physics of Particles and Nuclei》2016,47(6):968-974
The current status of the experiment on recording neutrino bursts from core collapse stars is presented. The actual observational time is 29.76 years. An upper bound of the mean frequency of core collapse supernovae in our Galaxy is fcol < 0.077 year–1 (90% CL). 相似文献
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Mechanics of Composite Materials - A technique for the numerical analysis of nonlinear dynamic deformation and progressive failure of cylindrical glass-fiber plastic shells is developed with... 相似文献
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Novoseltsev Yu. F. Dzaparova I. M. Kochkarov M. M. Kurenya A. N. Novoseltseva R. V. Petkov V. B. Striganov P. S. Unatlokov I. B. Yanin A. F. 《Journal of Experimental and Theoretical Physics》2022,134(4):390-398
Journal of Experimental and Theoretical Physics - Baksan underground scintillation telescope (BUST) operates under the program of neutrino burst search since the middle of 1980. We report the... 相似文献