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1.
2.
Photorefractive scattering occurs in rhodium-doped lithium niobate crystals irradiated by coherent light. The photorefractive scattering has both wide-angle and selective components. The results of experimental investigation of selective photorefractive scattering in LiNbO3:Rh crystals and calculation of the spatial structure of scattering are reported. The selective scattering is regarded as a kind of a frequency-degenerate fourwave vector interaction. 相似文献
3.
A. A. Maksimenko I. D. Sadekov A. G. Maslakov O. E. Kompan A. I. Yanovskii Yu. T. Struchkov V. I. Minkin 《Journal of Structural Chemistry》1991,32(3):404-405
Scientific-Research Institute of Physical and Organic Chemistry, Rostov State University. A. N. Nesmeyanov Institute of Heteroorganic Compounds, Academy of Sciences of the USSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 32, No. 3, pp. 104–106, May–June, 1991. 相似文献
4.
G. G. Pimenov V. D. Skirda V. Yu. Maksimenko V. P. Morozov O. A. Opanasyuk 《Colloid Journal》2004,66(6):722-725
Pulsed NMR and X-ray diffraction analysis are employed to study the influence of adsorbed toluene, p-xylene, acetone, and di(ethylene glycol) (DEG) molecules on phase transitions in a ZSM-5 silicalite. In the region of phase transitions, times T1 and T2 of longitudinal and transverse magnetic relaxation of apolar molecules adsorbed in silicalite micropores increase and decrease in a jumpwise manner, respectively, with a rise in the total content of the liquid. Such changes in T1 and T2 occur for hexane, decane, toluene, and p-xylene molecules. Qualitatively different concentration dependences of T1 and T2 are observed for polar acetone and DEG molecules, because these liquids do not cause a earrangement in the crystal lattice of silicalite; this is confirmed by the X-ray diffraction data.Translated from Kolloidnyi Zhurnal, Vol. 66, No. 6, 2004, pp. 802–806.Original Russian Text Copyright © 2004 by Pimenov, Skirda, Maksimenko, Morozov, Opanasyuk. 相似文献
5.
A. V. Anshakova E. V. Vinogradov N. G. Sedush T. S. Kurtikyan S. S. Zhokhov V. I. Polshakov Yu. V. Ermolenko V. Yu. Konyukhov O. O. Maksimenko S. E. Gelperin 《Russian Journal of Physical Chemistry A, Focus on Chemistry》2016,90(5):983-989
The formulations of rifabutin (RB) and 2-hydroxypropyl-β-cyclodextrin (HP-β-CD), obtained using different preparation techniques, are studied by means of differential scanning calorimetry and molecular spectroscopy (FTIR, NMR, Raman scattering, and photon correlation light scattering). It is established that molecules of RB do not form inclusion complexes with the molecules of HP-β-CD, and an increase in the solubility of RB determined earlier is caused by the formation of weak intermolecular associates. 相似文献
6.
Pion electromagnetic characteristics such as electric polarizability and rms radius were calculated. Pions are considered a nonrelativistic system of two pointlike spinor quarks with a linear potential at large distances and a Coulomb one at short ones. 相似文献
7.
Anastasiia M. Mishura Anna S. Sklyarova Dmitriy I. Sharapa Igor’ A. Levandovsky Michael Serafin Andrey A. Fokin Vladimir N. Rodionov 《Central European Journal of Chemistry》2013,11(12):2144-2150
The rearrangement of easily accessible Cookson’s diketone with chlorosulfonic acid in chloroform followed by the acidic hydrolysis gave 6-chloro-7-hydroxy-dichloropentacyclo[6.3.0.02,6.03,10.05,9]undecane-4-one, whose syn-stereochemistry was assigned through the X-ray crystal structure analysis. This key structure was used for the stereoselective synthesis of the D 3-trishomocubane derivatives as well as for the preparation of potential drugs bearing hydroxy- and amino-functional groups. A new multigram preparative synthesis of D 3-trishomocubane was developed. 相似文献
8.
J. V. Kasiuk A. A. Maksimenko J. A. Fedotova M. Marszałek S. K. Lazaruk O. V. Kupreeva 《Physics of the Solid State》2016,58(11):2312-2319
A comparative study of the magnetization curves of continuous and porous multilayered Pd10nm/[Co0.3nm]/Pd0.55nm]15/Pd2nm films deposited on an anodized TiO2 template was performed by magnetometry. Based on the comparison of the dependences of coercive field HC on angle θ between the easy-magnetization axis and the direction of external magnetic field H with theoretical dependences HC(θ) for the magnetization reversal by domain walls motion (according to the Kondorski model) and the rotation of magnetic moments (by the Stoner–Wohlfarth model), the differences in the mechanisms of magnetization reversal for two mentioned types of the films were revealed. The correlation between the difference in the morphologies of the continuous and porous films and revealed change in the mechanisms of the magnetization reversal, as well as the changes in values of HC and calculated constants of the magnetic anisotropy, is discussed. 相似文献
9.
Aleksandra Stegliska Anastasiia Bekhter Pawe Wawrzyniak Alina Kunicka-Styczyska Konrad Jastrzbek Micha Fidler Krzysztof
migielski Beata Gutarowska 《Molecules (Basel, Switzerland)》2022,27(5)
The purpose of the study was to select an environmentally friendly plant biopesticide to protect seed potatoes against phytopathogens. The scope included the evaluation of the antimicrobial activities of 22 plant water extracts, 22 water-glycol extracts, and 3 subcritical carbon dioxide extracts using the agar diffusion method against 10 potato phytopathogens. For the most effective extracts, minimal inhibitory concentration (MIC), chemical composition analysis by gas chromatography–mass spectrometry and in situ assays on seed potatoes were performed. Garlic water extract was finally selected as the most effective in phytopathogen growth inhibition, both in vitro and in situ, with MIC values ranging between 6.3–25 mg/mL. 5-Hydroxymethylfurfural was determined to be the main component of this extract (33.24%). Garlic water extract was proposed as a potential biopesticide against potato phytopathogens. 相似文献
10.
Choosing the state of a spatially distributed system in calculating a spectrum of Lyapunov exponents
A. A. Koronovskii V. A. Maksimenko O. I. Moskalenko A. E. Khramov 《Bulletin of the Russian Academy of Sciences: Physics》2011,75(12):1585-1588
The problem of choosing the set of parameters that determine the state of a spatially distributed system when calculating
a spectrum of Lyapunov exponents is considered. The possibility of reducing the number of necessary quantities due to the
features of the employed mathematical model is discussed. The proposed method is successfully applied to a hydrodynamic model
of a Piers diode. 相似文献