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951.
V. B. Gavrilov N. L. Kornienko G. A. Leksin S. V. Semenov 《Zeitschrift für Physik A Hadrons and Nuclei》1986,324(1):75-79
The contribution of the coalescence mechanism to deuteron production is discussed on the basis of data on inclusive deuteron and proton production in hadron-nucleus interactions. The angular dependence and theA dependence of the coefficient of twonucleon coalescence into a deuteron are analysed for 7.5 GeV/c pA and 5 GeV/cπ ? A interactions. The results suggest an elongated shape of the interaction region along the trajectory of the incident hadron and a successive knock-out of nucleons during propagation of the incident particle through a nucleus. 相似文献
952.
953.
P. I. Semenov 《Mechanics of Composite Materials》1967,3(5):595-598
A theory of thin-walled open sections, based on Vlasov's assumptions, is proposed. The section is assumed to be composed of rectangular strips whose cross section remains constant in the z-direction. The material is homogeneous and anisotropic with a single plane of elastic symmetry parallel to the middle surface of the strip. The general case of loading-tension, unsymmetrical bending, and constrained torision-is considered.Mekhanika Polimerov, Vol. 3, No. 5, pp. 900–905, 1967 相似文献
954.
955.
V. P. Semenov A. N. Studenikov A. A. Potekhin 《Chemistry of Heterocyclic Compounds》1978,14(3):233-245
The literature data on the synthesis of pyrroles, indoles, carbazoles, and other condensed systems containing a pyrrole ring and on their hydrogenated derivatives by means of nitrenes and potential precursors of the latter are correlated.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 291–305, March, 1978. 相似文献
956.
957.
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959.
Jahnke T Foucar L Titze J Wallauer R Osipov T Benis EP Alnaser A Jagutzki O Arnold W Semenov SK Cherepkov NA Schmidt LP Czasch A Staudte A Schöffler M Cocke CL Prior MH Schmidt-Böcking H Dörner R 《Physical review letters》2004,93(8):083002
Diffraction of a low energy (<4 eV) carbon-K-photoelectron wave that is created inside a CO molecule by absorption of a circularly polarized photon is investigated. The measurements resolve the vibrational states of the K-shell ionized CO+ molecule and display the photoelectron diffraction patterns in the molecular frame. These show significant variation for the different vibrational states. This effect is stronger than predicted by state-of-the-art theory. As this study is performed close to C-K-threshold and, therefore, far below the molecule's sigma-shape resonance, this surprisingly strong effect is not related to that resonance phenomenon. 相似文献
960.
S.?B.?BushukEmail author V.?E.?Douglas Yu.?A.?Kal’vinkovskaya L.?G.?Klapshina B.?A.?Bushuk A.?N.?Rubinov V.?V.?Semenov A.?P.?Stupak 《Journal of Applied Spectroscopy》2004,71(6):863-868
The spectroscopic characteristics of hybrid organic-inorganic films and solutions of ethoxysilicon-containing amidophosphate ligands in acetonitrile have been investigated. Inhomogeneous broadening of the absorption and fluorescence spectra which is characterized by the spectral dependence of the fluorescence and fluorescence excitation bands on the excitation and registration wavelength, respectively, is associated with the presence of a set of -(Si-O)n- siloxane structures with various terminal fragments in both the films and solutions. The established general spectral rules are discussed with allowance for the characteristic features of the electronic structure of silicon-organic compounds containing an oxygen atom the unshared electron pair of which ensures the delocalization of the electron density over the siloxane chain.Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 71, No. 6, pp. 788–792, November–December, 2004.This revised version was published online in April 2005 with a corrected cover date. 相似文献