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1.
G. N. Kryukova D. O. Klenov G. A. Zenkovets 《Reaction Kinetics and Catalysis Letters》1997,60(1):179-187
V2O5/TiO2 (anatase) with 5 and 20 wt.% loadings of V2O5 have been studied using high resolution electron microscopy. This has provided the first direct evidence for the formation
of a coherent interfacial boundary between two crystalline TiO2 and V2O5 phases. The type of the interfacial stacking was found to be similar for all the samples, whereas the length of the boundary
formed depended on the V2O5 loading. A model for the atomic arrangement of this boundary based on a comparison of structural positions of oxygen and
metal atoms in the crystal lattices of both phases is proposed. 相似文献
2.
Konnov A. A. Dubrovin I. M. Klenov M. S. Anikin O. V. Churakov A. M. Strelenko Yu. A. Pivkina A. N. Tartakovsky V. A. 《Russian Chemical Bulletin》2021,70(11):2189-2194
Russian Chemical Bulletin - Energetic compounds containing a new explosophoric fragment, (3,4-dinitro-1H-pyrazol-1-yl)-NNO-azoxy group, and furazan rings linked by azo and azoxy bridges were... 相似文献
3.
Based on real traffic data measured on American, UK and German freeways, we study common features of traffic congestion. We have found that traffic features [J] and [S] defining traffic phases “wide moving jam” (J) and “synchronized flow” (S) in Kerner’s three-phase theory are indeed common spatiotemporal traffic features observed in the UK, the USA and Germany. For the testing of Kerner’s “line J”, representing the propagation of the wide moving jam’s downstream front, four different methods for a study of moving jam propagation in empirical data are studied and compared for each congested traffic situation occurring in the three countries. A statistical study of velocities of wide moving jam fronts is presented, which has been performed through the analysis of database containing more than 280.000 min of observed wide moving jams measured on about 1200 km long freeway network in Hessen (Germany) during more than two years. 相似文献
4.
V. P. Zelenov A. A. Voronin A. M. Churakov M. S. Klenov Yu. A. Strelenko V. A. Tartakovsky 《Russian Chemical Bulletin》2011,60(10):2046-2050
A reaction of 4-(N-nitramino)-3-phenylfuroxane with the Ac2O/H2SO4 system leads to the formation of [1,2,5]oxadiazolo[3,4-c]cinnoline-1,5-dioxide, the first representative of furoxanocinnolines. The reaction presumably proceeds through the transformation of the nitramine fragment NHNO2 to the oxodiazonium ion [N=N=O]+ with subsequent intramolecular attack by this cation on the phenyl ring. Furoxanocinnoline is also formed in the reaction of the 4-(N-nitramino)-3-phenylfuroxane O-methyl derivative with H2SO4. It is assumed that this reaction also proceeds with involvement of the intermediate cation [N=N=O]+ formed by the protonation of the N=N(O)OMe group and subsequent elimination of MeOH. 7-Nitro derivative is formed when furoxanocinnoline is nitrated with the concentrated HNO3/H2SO4 mixture. The compounds obtained were characterized by 1H, 13C, and 14N NMR spectroscopy. 相似文献
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6.
T. E. Golikova F. Hübler D. Beckmann N. V. Klenov S. V. Bakurskiy M. Yu. Kupriyanov I. E. Batov V. V. Ryazanov 《JETP Letters》2013,96(10):668-673
Specific features of the proximity effect and Josephson behavior of submicron planar SNS junctions fabricated by electron beam lithography and shadow evaporation have been studied experimentally and theoretically. The critical current of the junctions has been found to drastically increase with a decrease in temperature, which is associated with a change in the effective size of the weak link owing to the additional SN interface. 相似文献
7.
S. V. Bakurskiy A. L. Gudkov N. V. Klenov A. V. Kuznetsov M. Yu. Kupriyanov I. I. Soloviev 《Moscow University Physics Bulletin》2014,69(4):275-286
This review is devoted to a discussion of the prospects for solving the problem of a low degree of integration of the traditional elements for promising (due to the high performance and extremely low energy dissipation) superconducting digital electronics. We define three main directions on the path to compact multi-element Josephson electronic systems: (1) reduction of the Josephson junction to submicron size, (2) decrease of the area of standard logic cells, and (3) fabrication of a compact and rapid Josephson memory. We present the physical foundations of Josephson elements in order to show the fundamental constraints on establishing standard submicron tunnel contacts and compact logic cells/memory elements. This survey clearly demonstrates the essence of breakthrough technological solutions to create ultrasmall heterostructures with desired settings, reduce and optimize logic cells, and create memory unit cells based on Josephson junctions with magnetic layers. 相似文献
8.
Dr. Michael S. Klenov Alexey A. Guskov Dr. Oleg V. Anikin Prof. Dr. Aleksandr M. Churakov Dr. Yurii A. Strelenko Dr. Ivan V. Fedyanin Dr. Konstantin A. Lyssenko Prof. Dr. Vladimir A. Tartakovsky 《Angewandte Chemie (International ed. in English)》2016,55(38):11472-11475
This study presents the first synthesis and characterization of a new high energy compound [1,2,3,4]tetrazino[5,6‐e][1,2,3,4]tetrazine 1,3,6,8‐tetraoxide (TTTO). It was synthesized in ten steps from 2,2‐bis(tert‐butyl‐NNO‐azoxy)acetonitrile. The synthetic strategy was based on the sequential closure of two 1,2,3,4‐tetrazine 1,3‐dioxide rings by the generation of oxodiazonium ions and their intramolecular coupling with tert‐butyl‐NNO‐azoxy groups. The TTTO structure was confirmed by single‐crystal X‐ray. 相似文献
9.
Back Cover: Synthesis of Tetrazino‐tetrazine 1,3,6,8‐Tetraoxide (TTTO) (Angew. Chem. Int. Ed. 38/2016) 下载免费PDF全文
10.
I. I. Soloviev V. K. Kornev A. V. Sharafiev N. V. Klenov O. A. Mukhanov 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2012,6(4):591-597
The basic physics of the development of broadband active electrically small superconductive antennas for the subgigahertz and gigahertz frequency ranges, based on series arrays with cells characterized by a highly linear voltage response to the magnetic component B of an electromagnetic signal, are under consideration. As such cells, bi-SQUIDs and cells based on two parallel SQIF structures that are differentially connected are proposed. Series arrays of cells with linear voltage response, including an antenna prototype, are fabricated using standard niobium technology with a critical current density of Josephson junctions of 4.5 kA/cm2 and are studied experimentally. The data obtained allow estimation of the achievable dV/dB conversion factor and the sensitivity ??B for an antenna integrated with a magnetic flux converter, placed on an available area of 3.3 × 3.3 mm of a chip 5 × 5 mm in size. These values are found to be 10 ??V/nT and 20 fT/Hz1/2, respectively. The conversion factor increases in proportion with the area a 2 occupied by the antenna with a square flux converter, and the sensitivity is improved as a ?3/2. 相似文献