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1.
Vysotskii S. L. Kozhevnikov A. V. Filimonov Yu. A. 《Physics of the Solid State》2021,63(10):1579-1583
Physics of the Solid State - The interference of excited and received by current antennae magnetoelastic waves counterpropagating in an yttrium iron garnet film is experimentally studied. It is... 相似文献
2.
3.
M. V. Patrakeev A. A. Lakhtin I. A. Leonidov A. V. Nikolaev V. L. Kozhevnikov 《Ionics》1997,3(1-2):89-95
A heat machine is studied of regenerative type, based on solid electrolytes with unipolar oxygen conductivity. The achieved
specific power is about 0.2 mW/cm2. Electrical characteristics are derived as a function of temperature, pressure and gas composition in the working chamber
of the converter. Factors which influence the specific power as well as optimal regimes for the functioning of the device
are determined. 相似文献
4.
Kozhevnikov D. N. Kataeva N. N. Rusinov V. L. Chupakhin O. N. 《Russian Chemical Bulletin》2004,53(6):1295-1300
A simple procedure was developed for the synthesis of 1,2,4-triazines and their 4-oxides containing the ClCH2, Cl2CH, or CCl3 group at position 3 by cyclization of 2-aryl-2-hydrazono-1-oximinoethanes with the corresponding chloroacetonitriles. The reaction pathway depends on the number of halogen atoms in the acetonitrile used. The reactions with trichloroacetonitrile, monochloroacetonitrile, and dichloroacetonitrile afford 3-trichloromethyl-1,2,4-triazines, 3-chloromethyl-1,2,4-triazine 4-oxides, and a mixture of the corresponding dichloromethyltriazines and their 4-oxides, respectively. The reactions of 3-trichloromethyl-1,2,4-triazines with indoles and phenols are accompanied by tele-substitution with elimination of halogen from the trichloromethyl group to give 5-indolyl- (or 5-hydroxyphenyl)-3-dichloromethyl-1,2,4-triazines. 相似文献
5.
The phenylation of ethylene with benzene under the effect of palladium acetate at [C2H4] [Pd(OAc)2] has been found to give styrene and trans-stilbene via parallel rather than consecutive reactions. The data obtained indicate that styrene and stilbene are formed through the same intermediate. The reaction mechanism is discussed.
, [C2H4][Pd(OAc)2] - . , . .相似文献
6.
The liquid-phase C-alkylation of hidroquinone with isobutene catalyzed by heteropoly acids H3PW12O40, H6P2W18O62 and H6P2W21O71 (HPA) under phase-transfer conditions in a two-phase system, including toluene (upper phase) and HPA dioxane etherate, HPA·xC4H8O12·yH2O, (lower phase) has been studied. 相似文献
7.
S. M. Kulikov I. V. Kozhevnikov M. N. Fomina A. P. Krysin 《Russian Chemical Bulletin》1987,36(4):681-684
Conclusions The tungsten heteropoly acids in acetic acid are the most active in the dealkylation of 4-alkyl-2,6-di-tert-butylphenols. The reaction is first order with respect to the substrate and with respect to the HPA, and water slows the reaction. It has been postulated that the dealkylation reaction is mediated mainly by the undissociated molecules of the HPA.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 752–756, April, 1987. 相似文献
8.
S. V. Golovkin A. P. Kozhevnikov V. P. Kubarovsky A. I. Kulyavtzev V. F. Kurshetsov A. I. Kushnirenko L. G. Landsberg V. V. Molchanov V. A. Mukhin V. I. Solyanik D. V. Vavilov V. A. Victorov M. Ya. Balatz G. V. Dzubenko A. D. Kamenskii G. K. Kliger V. Z. Kolganov V. S. Lakaev G. S. Lomkatzi A. P. Nilov V. T. Smolyankin V. E. Vishnyakov 《Zeitschrift fur Physik C Particles and Fields》1995,68(4):585-594
In the experiments at the SPHINX facility in 70 GeV proton beam of the IHEP accelerator the coherent diffractive production reactions on carbon nucleip+C [(1385)0
K
++C andp+C[0
K
+]+C were investigated. The evidences for new baryon states were obtained in the study of hyperon-kaon effective mass spectra in these two reactions:X (2050) with massM=(2052±6) MeV and width =(35
–35
+22
) MeV inM[(1385)0
K
+] andX(2000) withM=1999±6 MeV and =91±17 MeV inM[0
K
+]. The unusual features of these massive states (small enough decay widths, anomalously large branching ratios for decays with strange particles emission) make them very serious candidates for cryptoexotic pentaquark baryons with hidden strangeness. 相似文献
9.
10.
O. A. Kholdeeva I. V. Kozhevnikov V. N. Sidel'nikov V. A. Utkin 《Russian Chemical Bulletin》1989,38(9):1903-1907
The oxidation of pseudocumene in the benzene nucleus can be effected in HOAc solution by using inorganic oxidizing agents containing oxygen, such as NaNO3, hetero-polyacids, O2, Na2S2O8 and H2O2, with Pd(OAc)2 as catalyst. Na2S2O8 and H2O2 are the most effective, being also active in the absence of Pd(II).Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2069–2073, September, 1989.The authors thank V. I. Zheivot, V. A. Bushmelev and K. F. Obzherinoi for their assistance in the investigation. 相似文献