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71.
Dorofeeva T. I. Gubaidulina T. A. Sergeev V. P. Kalashnikov M. P. Voronov A. V. 《Russian Physics Journal》2020,63(7):1186-1194
Russian Physics Journal - Magnetron sputtering, vacuum arc deposition, and ion implantation have been used to create a three-layer anti-corrosive coating structure on stainless steel samples. The... 相似文献
72.
Fedorov P. P. Ushakov S. N. Uslamina M. A. Chernova E. V. Kuznetsov S. V. Voronov V. V. Düvel A. Heitjans P. Pynenkov A. A. Nishchev K. N. Osiko V. V. 《Crystallography Reports》2018,63(5):837-843
Crystallography Reports - Proceeding from the phase diagram of the CaF2–SrF2 system, the stability of crystal–melt interface of solid solution against constitutional supercooling has... 相似文献
73.
Tomalino LM Voronov A Kohut A Peukert W 《The journal of physical chemistry. B》2008,112(20):6338-6343
For the first time, hyper-Rayleigh scattering (HRS) of invertible polymeric micellar structures has been measured. HRS measurements on amphiphilic invertible polyesters with alternating hydrophilic and hydrophobic fragments were carried out in solvents of differing polarity. The observed strong variation of the HRS signals is attributed to the switching behavior of the polyester micelles in the different solvents. The hyperpolarizabilities and the size of the micelles increased with decreasing polarity of the solvent. Observing the dynamics of the solubilization of an insoluble dye (malachite green) by the invertible polyester in toluene confirmed the possibility to reveal conformational changes in polyester macromolecules by HRS. In contrast to UV measurements which showed a continuous increase in absorbance and indicated overall solubilization of the dye, the HRS signals decreased after approaching a maximum value. The decrease of the HRS signals is attributed to the change of dye molecules' orientation within the micelles due to the change of polymeric conformation in toluene. The results have shown that HRS is sensitive to reorientation and ordering of the macromolecules and might become a powerful tool for studying polymer micellar structures as well as phase transfer processes at the nanoscale. 相似文献
74.
75.
76.
It is shown that in principle it is possible to write optical information on individual quasiresonant atoms in a concentrated
system by changing the angle of incidence of an external light wave.
Pis’ma Zh. éksp. Teor. Fiz. 69, No. 10, 750–754 (25 May 1999) 相似文献
77.
A self-consistent problem of interaction of two dipole atoms separated by an unrestricted distance with the field of a quasi-resonance
light wave was solved on the assumption that the investigated atoms are Lorentz linear oscillators and the polarizing fields
inside the system consist of the Coulomb and the retarded parts. The solution obtained was investigated for the case where
the atoms have the same polarizability and the distance between them is much smaller than the length of the external light
wave. Formulas for the electric fields inside a small object and outside it have been obtained. It is shown that inside a
small two-atom object there can take place longitudinal and transverse optical vibrations accompanied by corresponding dispersion
effects depending on the interatomic distance and the angle between the axis of the system and the direction of propagation
of the external light wave. The field outside the small object in the wave zone is linearly polarized when the external wave
has linear polarization. However, the direction of polarization of the corresponding waves is largely determined by their
frequency. It is also shown that the amplitude of the field outside the small object in the wave zone depends greatly on the
frequency of the external field and the interatomic distance. The effects observed are considered as a near-field effect in
optics of small objects. This phenomena makes it possible to investigate the structure of small objects with the use of optical
radiation.
Ul'yanovsk Branch of the Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 48 Goncharov Str., Ul'yanovsk,
432700, Russia; e-mail: gadomsky@quant.univ.simbirsk.su. Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 66, No. 6,
pp. 765–770, November–December, 1999. 相似文献
78.
A. Zaichenko N. Mitina M. Kovbuz I. Artym S. Voronov 《Journal of polymer science. Part A, Polymer chemistry》2000,38(3):516-527
Carbon‐chain heterofunctional oligoperoxides (HFOs) with ditertiary peroxidic, carboxy, or hydroxy groups formed stable coordinated complexes through their interaction with transition‐metal salts in organic solutions. The oligomeric metal complexes (OMCs) were separated from the reaction mixture and investigated through elemental analysis, voltammetry, and atom‐adsorption, IR, and UV spectroscopy. From these investigations and the calculated values of the mole fraction and formation constants of the stable complexes of the copper cations and HFOs, the probable cooperative mechanism of the complex formation by such oligomers was suggested. The existence of two levels of HFO molecule ordering, namely HFO microstructure and the structure of the hydrogen‐bonded complexes formed by HFOs, explained the cooperative mechanism and some characteristics of the OMC formation. The mole fraction and formation constants of the OMCs were interrelated with the disposition of the complex‐forming groups in the chain of HFOs. From the experimental data, it can be concluded that the complex‐forming groups of the HFOs possessed different reactivities both in the complex formation with metal cations and in the reactions involving the resulting OMCs. The shift in the half‐wave potential of the O:O bond reduction during the transition from the HFO to a mixture of HFO and Cu2+ and to OMC indicated an increase in its reactivity. © 2000 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 38: 516–527, 2000 相似文献
79.
Oscillations of the aggregate sizes of SiO2 particles covered by an adsorbed layer of poly(vinylpyridine) (PVP) at pH 3 with a periodicity of about 15 h were observed using a particle counting technique. The same oscillation was found for the contact angle values of water on the surface of Si wafers (with top silica layer) covered by adsorbed PVP as a function of exposure time in a PVP water solution. 相似文献
80.
Physics of Atomic Nuclei - Searches for the anisotropy of the total electron and positron fluxes in high-energy galactic cosmic rays are performed. Data collected by the PAMELA magnetic... 相似文献