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51.
Galimov A. I. Rakhlin M. V. Klimko G. V. Zadiranov Yu. M. Guseva Yu. A. Troshkov S. I. Shubina T. V. Toropov A. A. 《JETP Letters》2021,113(4):252-258
JETP Letters - The characteristics of single photons emitted by columnar microstructures based on epitaxial microcavity heterostructures with distributed Bragg reflectors, which include... 相似文献
52.
Frontispiece: Reverse Spin‐Crossover and High‐Pressure Kinetics of the Heme Iron Center Relevant for the Operation of Heme Proteins under Deep‐Sea Conditions
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53.
Aleksei A. Titov Oleg A. Filippov Alexander F. Smol’yakov Alexey A. Averin Elena S. Shubina 《Mendeleev Communications》2021,31(2):170-172
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54.
在航空航天领域,为了加速系统设计及测试进度,通常需要进行半实物实时仿真,即控制器用实物,受控对象采用数学模型。本文开发出了基于Matlab/Simulink的两相传热模块,并用其搭建了某机械泵驱动两相回路的实时动态模型。通过与实验的对比,验证了模型的可靠性,表明该模型满足实时要求,可以在下一步用于半实物仿真。 相似文献
55.
B. Monemar P.P. Paskov J.P. Bergman A.A. Toropov T.V. Shubina A. Usui 《Superlattices and Microstructures》2008,43(5-6):610
We report new data on the transient photoluminescence behaviour of free and donor bound excitons in high quality bulk GaN material grown by HVPE. With 266 nm photoexcitation the no-phonon free exciton has a short decay time, about 100 ps at 2 K, assigned to nonradiative surface recombination. The LO replicas of the free exciton have a much longer decay at 2 K, about 1.4 ns, believed to be a lower bound for the bulk radiative lifetimes of the free excitons at 2 K. The donor bound exciton no-phonon lines exhibit a rather short (about 300 ps) nonexponential decay at 2 K, which appears to be dominated by a scattering process. The corresponding LO replicas and the two-electron transitions have a much longer decay. From the latter, the lower bound of the radiative lifetime of the O- and Si-bound excitons are 1800 ps and 1100 ps, respectively. 相似文献
56.
Software for optimization of instrumental neutron activation analysis of geological samples, preferentially silicate rocks, and a technique for evaluation and minimization of interference of gamma-ray lines are given. The maximum relevant signal-to-noise ratio was taken as a criterion for optimization by taking into account information available from a large number of lines in the gamma spectra studied. 相似文献
57.
Software for optimization of instrumental neutron activation analysis of geological samples, preferentially silicate rocks,
and a technique for evaluation and minimization of interference of gamma-ray lines are given. The maximum relevant signal-to-noise
ratio was taken as a criterion for optimization by taking into account information available from a large number of lines
in the gamma spectra studied.
Received: 17 July 1997 / Revised: 7 November 1997 / Accepted: 16 November 1997 相似文献
58.
T. V. Shubina K. G. Belyaev M. A. Semina A. V. Rodina A. A. Golovatenko A. A. Toropov S. V. Sorokin I. V. Sedova V. Yu. Davydov A. N. Smirnov P. S. Kop’ev S. V. Ivanov 《Physics of the Solid State》2016,58(11):2256-2260
Förster resonance energy transfer in inhomogeneous dense arrays of epitaxial CdSe/ZnSe quantum dots is demonstrated by time- and space-resolved photoluminescence spectroscopy. The specific feature of this process is the dipole–dipole interaction between the ground exciton levels of small quantum dots and the excited levels of large dots. This interaction brings efficient energy collection and spectral selection of a limited number of emitters. Results of theoretical modeling of optical transitions in spheroidal quantum dots with a Gaussian potential profile agree with the observed features of optical spectra induced by the change of the dominant energy transfer mechanism. 相似文献
59.
A. A. Toropov E. A. Shevchenko T. V. Shubina V. N. Jmerik D. V. Nechaev G. Pozina S. V. Ivanov 《Physics of the Solid State》2016,58(11):2261-2266
Theoretical optimization of a quantum well heterostructure based on AlGaN solid solutions is implemented in order to attain the maximum charge carrier activation energy and the maximum exciton binding energy at a radiation wavelength of ~300 nm. An optimized structure sample with the radiative recombination dominating over the temperature range of 5 to 300 K and the room temperature internal quantum yield as high as 80% of the value measured at 5 K has been manufactured via plasma-assisted molecular beam epitaxy. 相似文献
60.
A. A. Titov A. F. Smol´yakov A. N. Rodionov I. D. Kosenko E. A. Guseva Ya. V. Zubavichus P. V. Dorovatovskii O. A. Filippov E. S. Shubina 《Russian Chemical Bulletin》2017,66(9):1563-1568
New tri- and tetranuclear macrocyclic silver(i) and copper(i) 3-ferrocenyl-5-(trifluoromethyl)pyrazolates were prepared: [{(3-((η5-C5H4)Fe(η5-C5H5))-5-(CF3)-Pz}M]3 (M = Cu (1), Ag (2)) and [{(3-(( η5-C5H4)Fe(η5-C5H5))-5-(CF3)-Pz}Cu]4 (3). The structures of compounds were established by X-ray diffraction analysis. In the crystalline state, a planar trinuclear silver-containing macrocycliс pyrazolate and a saddle-shaped tetranuclear copper-containing macrocycle are formed. The introduction of a bulky substituent, ferrocene, into the pyrazole ligand results in complete shielding of the acidic metal sites, which precludes the coordination of base molecules. 相似文献