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301.
Conclusions It was established that the alkaloids coculine and coculidine are derivatives of D-homoindophenanthridine.This issue of the journal contains only Brief Communications.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 500–502, March, 1972. 相似文献
302.
Puchkarev V.F. Bochkarev M.B. 《IEEE transactions on plasma science. IEEE Nuclear and Plasma Sciences Society》1997,25(4):593-597
Vacuum discharge burning between a broad cathode and a point anode made of Mo, Cu, and Cd has been studied. This discharge operates in anode vapors and shows major arc characteristics, although no craters were examined on the cathode. The secondary electron emission is involved to explain current transport within the cathode region. This discharge is interpreted as a high density low voltage glow discharge. Having discussed the present and previous findings, the conclusion has been drawn that the secondary electron emission and “hump of potential” are dominant in the vacuum arc cathode spot 相似文献
303.
A. A. Bochkarev M. V. Pukhovoi 《Journal of Applied Mechanics and Technical Physics》1994,35(3):416-424
Novosibirsk. Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 35, No. 3, pp. 102–111, May–June, 1994. 相似文献
304.
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306.
A. A. Bochkarev V. I. Polyakova 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2011,5(5):878-886
The Gibbs layer gatherings on the condensation front of silver vapor in the presence of water vapor are analyzed. The front
of condensation for analyzing the Gibbs concentration excess is calculated with the use of the modified Langmuir’s model of
sorption. At a fixed flow of silver vapor and temperature of the substrate, the water-vapor pressure varies. Calculations
have shown that the change of the water-vapor pressure changes the structure of the silver condensate, the structure of Gibbs
layers, and microroughness on the condensation front. As a consequence, the efficiency of mass transfer varies. With growth
of the water-vapor pressure, the condensation efficiency of both vapor components decreases. For obtaining the most equal
surface of condensed silver film there is an optimum water-vapor pressure. The results allow the influence of noncondensed
gas impurity on growth of thin films to be understood in greater detail and help to choose optimum modes for vacuum deposition.
A general conclusion regarding the connection of the Gibbs layers and microroughness of the condensation surface with the
intensity of mass transfer, leaving a framework of vacuum deposition processes, is drawn. 相似文献