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121.
M. M. Barysheva Yu. A. Vainer B. A. Gribkov M. V. Zorina A. E. Pestov N. N. Salashchenko N. I. Chkhalo A. V. Shcherbakov 《Technical Physics》2013,58(9):1371-1379
The aim of this work is application of soft X-ray diffuse scattering for certification of diffractiongrade optical elements and their substrates at a working wavelength. A device is suggested that allows certification under laboratory conditions owing to a dynamic range approaching that of synchrotron radiation sources. Experimental data are compared with data of alternative methods. 相似文献
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Tamara A. Bazhenova Vyacheslav A. Kopotkov Denis V. Korchagin Yuriy V. Manakin Leokadiya V. Zorina Sergey V. Simonov Ilya A. Yakushev Vladimir S. Mironov Alexander N. Vasiliev Olga V. Maximova Eduard B. Yagubskii 《Molecules (Basel, Switzerland)》2021,26(22)
A series of six seven-coordinate pentagonal-bipyramidal (PBP) erbium complexes, with acyclic pentadentate [N3O2] Schiff-base ligands, 2,6-diacetylpyridine bis-(4-methoxybenzoylhydrazone) [H2DAPMBH], or 2,6-diacethylpyridine bis(salicylhydrazone) [H4DAPS], and various apical ligands in different charge states were synthesized: [Er(DAPMBH)(C2H5OH)Cl] (1); [Er(DAPMBH)(H2O)Cl]·2C2H5OH (2); [Er(DAPMBH)(CH3OH)Cl] (3); [Er(DAPMBH)(CH3OH)(N3)] (4); [(Et3H)N]+[Er(H2DAPS)Cl2]− (5); and [(Et3H)N]+[Y0.95Er0.05(H2DAPS)Cl2]− (6). The physicochemical properties, crystal structures, and the DC and AC magnetic properties of 1–6 were studied. The AC magnetic measurements revealed that most of Compounds 1–6 are field-induced single-molecule magnets, with estimated magnetization energy barriers, Ueff ≈ 16–28 K. The experimental study of the magnetic properties was complemented by theoretical analysis based on ab initio and crystal field calculations. An experimental and theoretical study of the magnetism of 1–6 shows the subtle impact of the type and charge state of the axial ligands on the SMM properties of these complexes. 相似文献
124.
M. S. Egorov E. V. Grinenko A. D. Zorina L. V. Balykina S. I. Selivanov A. G. Shavva 《Russian Journal of Organic Chemistry》2001,37(6):802-810
Reduction by Birch procedure of 3-methoxy-B-nor-8-isoestra-1,3,5(10)-trienes followed by hydrolysis of reaction products furnished 19,B-bisnor-8,10-isoanalogs of steroid androgens. With the use of the correlation NMR spectroscopy a complete assignment of signals in the 1H and 13C NMR spectra was performed for two representatives of this steroid group, and their prevailing conformations in solution were established. 相似文献
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I. S. Zorina M. Yu. Kurshakov D. S. Mikhatulin Yu. V. Polezhaev I. V. Chirkov 《Fluid Dynamics》1988,23(5):714-717
The problem of designing the contour of an optimum nozzle for particle acceleration is considered in the one-dimensional formulation.
In [1] a similar problem was solved in the general formulation using a numerical method. Here, in contrast to [1], the solution
is obtained in analytic form for the particular case of low particle concentration. The problem of the motion of a particle
in a uniform stream is solved in the same form.
Moscow. Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 5, pp. 86–90, September–October, 1988. 相似文献
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Chkhalo N. I. Zorina M. V. Malyshev I. V. Pestov A. E. Polkovnikov V. N. Salashchenko N. N. Kazakov D. S. Mil’kov A. V. Strulya I. L. 《Technical Physics》2019,64(11):1596-1601
Technical Physics - Thermophysical and mechanical characteristics of beryllium are compared with the corresponding characteristics of promising materials that are used for fabrication of precision... 相似文献
130.