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101.
A.?Sh.?AgazhanovEmail author R.?N.?Abdullaev D.?A.?Samoshkin S.?V.?Stankus 《Thermophysics and Aeromechanics》2017,24(6):927-932
The thermal conductivity λ and the thermal diffusivity a of liquid rubidium were measured by the laser flash method in the temperature interval from the melting point up to 873 K. The measurement error was 4–6%. The data of this paper were compared with the results of other authors. Approximation equations and the table of reference values for the temperature dependence of λ and a have been obtained. The dependence of the Lorentz number on temperature has been calculated. 相似文献
102.
Sh. N. Alieva A. M. Kerimova R. B. Abdullaev T. R. Mekhtiev 《Physics of the Solid State》2017,59(3):543-549
The results of experimental studies of the IR diffuse reflectance spectra in the range from 4000 to 50 cm–1 of Ni1–xZnxFe2O4 ferrite micropowders with different concentrations of nickel and zinc are presented. The dependence of the intensity of the IR spectra of these ferrites on the changing concentrations of Fe2+ and Fe3+ cations in ferrites of different compositions is found. The features of change of the reflectance spectra are studied depending on the ferrite compositions, and an interpretation of the observed spectral structures is proposed. 相似文献
103.
A. A. Abdullaev G. A. Rabadanov 《Russian Journal of Physical Chemistry B, Focus on Physics》2018,12(2):192-195
The conditions are determined, and the parameters for the onset of the mode of dimeric molecular association in the water system are estimated. The characteristics of dimeric associates of molecules are determined. The region of anomalous thermal compression water is increased from T ≤ 4°C to T ≤ 66.4°C by introducing the temperature equivalent T0 of the energy of proton transition from molecule to molecule into the parameter of resonant interaction of atoms of different molecules. The time of transfer of excitation energy correlates with the periods of the valence and deformation vibrations of the molecules. Therefore, a molecule that performs valence vibrations “has time” to store an excitation energy sufficient to provide a parallel orientation of the spins of the nuclei of the hydrogen atoms in the molecules. Molecules that perform deformation vibrations have zero spins because of the smallness of the frequencies of such vibrations. 相似文献
104.
Abdullaev N. A. Amiraslanov I. R. Aliev Z. S. Jahangirli Z. A. Sklyadneva I. Yu. Alizade E. G. Aliyeva Y. N. Otrokov M. M. Zverev V. N. Mamedov N. T. Chulkov E. V. 《JETP Letters》2022,115(12):749-756
JETP Letters - This work is devoted to the experimental study and symmetry analysis of the Raman-active vibration modes in MnBi2Te4·n(Bi2Te3) van der Waals topological insulators, where n is... 相似文献
105.
Eduard N. Tsoy Sadulla Sh. Tadjimuratov Fatkhulla Kh. Abdullaev 《Optics Communications》2012,285(16):3441-3444
Linear and nonlinear localized modes of a slab waveguide with distributed gain and loss are studied. The structure is an optical analog of parity-time symmetric potentials in quantum mechanics. Such waveguide structures support stable localized modes. The explicit equation for the propagation constant of linear modes is obtained. The existence of stable nonlinear modes in such waveguides is demonstrated. Bend losses in such structures are analyzed. 相似文献
106.
Siddikov D. R. Bobakulov Kh. M. Turgunov K. K. Turginov O. T. Nishanbaev S. Z. Tashkhodzhaev B. Sham′yanov I. D. Abdullaev N. D. 《Chemistry of Natural Compounds》2021,57(2):246-249
Chemistry of Natural Compounds - A new butyrolactone that was called charlesolide and the known phenolic compounds gallic acid (3,4,5-trihydroxybenzoic acid) and its methyl gallate and ethyl... 相似文献
107.
108.
N. D. Abdullaev K. Samikov T. P. Antsupova M. R. Yagudaev S. Yu. Yunusov 《Chemistry of Natural Compounds》1987,23(5):576-578
The new alkaloid lilidine, isolated for the first time from the epigeal part ofLilium martagon has been studied by special methods. It has the composition B5H6NO2, mp 118–110°C, [α]D-26.3°. The1H and13C NMR spectra were studied in detail. The values of the direct and long-range spin-spin coupling constants between the13C carbon nuclei and the1H nuclei of the alkaloid molecule were measured with the aid of13C-[{su1}H] selective heteronuclear double resonance. The structure of 5-hydroxy-3-methyl-3-pyrrolin-2-one is suggested for lilidine. 相似文献
109.
110.