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21.
One and the same period, P
0=160.0101±0.0001min, was discovered in the global oscillation of the Sun and in the rapid variability of several active galactic nuclei (AGN). According to Kotov and Lyuty's hypothesis [1], the P
0 oscillation must have a cosmological nature, since the period is independent of the AGN redshift. The universal P0 osculation can represent a fundamental scale of cosmic time, that is, a true cosmological invariant which does not depend on the source moving with respect to the observer. The phenomenon of the P0 oscillation (the metrics of the Universe) brings the Big Bang paradigm into challenge.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 39, No. 10, pp. 1204–1209, October, 1996.We are grateful to the reviewer for useful comments. This work was supported in part by the International Science Foundation under ISF Grants No. UCU000 and UCU200. 相似文献
22.
M. N. Kotov V. F. Masterov V. V. Potapov A. V. Prichodko O. V. Smertin N. M. Shybanova 《International Journal of Infrared and Millimeter Waves》1993,14(8):1679-1687
Experimental investigations of superconductivity effects in single-phase and multiphase Bi2Sr2CaCu2O8 single-crystals have been carried out at 142 GHz frequency by means of the standing wave profile method [1]. Josephson harmonic generation has been observed to be responsible for the appearence of additional peaks on the standing wave profile of the open dielectric resonator loaded with a properly orientated multiphase high-Tc superconductor specimen. This leads to the conclusion that most of the Josephson junctions in multiphase crystals are located in certain crystallographic planes. The investigations of temperature dependencies showed that sharp resonant peaks of conductivity observed earlier [2] at 60 GHz could also be observed at 142 GHz. 相似文献
23.
Guldi DM Zilbermann I Anderson G Kotov NA Tagmatarchis N Prato M 《Journal of the American Chemical Society》2004,126(44):14340-14341
Novel organic (positively charged fullerene)-inorganic (negatively charged CdTe nanoparticle) nanoensembles were devised through electrostatic interactions and probed as versatile donor-acceptor hybrids. Photoirradiation of their homogeneous solutions, containing the electrostatically packed components, let to very long-lived (1.3 ms) charge separated states. 相似文献
24.
V. V. Gritsenko O. A. D'yachenko P. Cassoux A. I. Kotov E. E. Laukhina C. Faulmann E. B. Yagubskii 《Russian Chemical Bulletin》1993,42(7):1149-1151
A neutral metal complex, [Pt(dddt)2]° (1), has been obtained by oxidation of the [Pt(dddt)2]– anion with excess (Bu4N)AuBr4 in nitrobenzene. Crystallographic data for 1a=17.854(9) Å,b=18.409(9) Å,c=4.717(5) Å, =68.83(2)°, space group P21/n,Z=4,d
calc=2.55 g/cm3. In1 two independent centrosymmetric [Pt(dddt)2]° molecules are packed in stacks that form layers parallel to the (110) plane. The molecules of1 in the layers have shortened S...S contacts 3.491(9) Å, and 3.594(10) Å. The average bond lengths Pt-S 2.242(7) Å, S-C 1.71(2) Å and C=C 1.40(3) Å, together with the square-planar coordination of Pt in PtS4, suggest considerable conjugation in the metal cycles.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1207–1209, July, 1993. 相似文献
25.
O. A. D'yachenko A. I. Kotov L. O. Atovmyan A. S. Kovalev R. N. Lyubovskaya S. V. Soboleva M. L. Khidekel 《Russian Chemical Bulletin》1977,26(1):184-186
Conclusions The compound of 2,3,7,8-tetramethoxytianthrene with 7,7,8,8-tetracyanoquinodimethane was obtained, which is a charge-transfer complex, and its structure was determined.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 208–211, January, 1977. 相似文献
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We present new experimental results on the investigation of the dynamic properties of sand soil on the basis of the inverse experiment technique using a measuring rod with a flat front-end face. A limited applicability has been shown of the method using the procedure for correcting the shape of the deformation pulse due to dispersion during its propagation in the measuring rod. Estimates of the pulse maximum have been obtained and the results of comparison of numerical calculations with experimental data are given. The sufficient accuracy in determining the drag force during the quasi-stationary stage of penetration has been established. The parameters of dynamic compressibility and resistance to shear of water-saturated sand have been determined in the course of the experimental-theoretical analysis of the maximum values of the drag force and its values at the quasi-stationary stage of penetration. It has been shown that with almost complete water saturation of sand its shear properties are reduced but remain significant in the practically important range of penetration rates. 相似文献