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981.
Jennifer L. Seymour František Tureček Andrei V. Malkov Pavel Kočovský 《Journal of mass spectrometry : JMS》2004,39(11):1382-1382
The original article to which this Erratum refers was published in Journal of Mass Spectrometry 2004; 39: 1044–1052. 相似文献
982.
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Andrei Iordan 《Mathematische Zeitschrift》1985,188(2):171-188
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987.
Andrei Toom 《Journal of statistical physics》1995,80(3-4):545-563
Finite one-dimensional random processes with local interaction are presented which keep some information of a topological nature about their initial conditions during time, the logarithm of whose expectation grows asymptotically at least asM
3, whereM is the size of the setR
M
of states of one component. ActuallyR
M
is a circle of lengthM. At every moment of the discrete time every component turns into some kind of average of its neighbors, after which it makes a random step along this circle. All these steps are mutually independent and identically distributed. In the present version the absolute values of the steps never exceed a constant. The processes are uniform in space, time, and the set of states. This estimation contributes to our awareness of what kind of stable behavior one can expect from one-dimensional random processes with local interaction.Partially supported by NSF grant #DMS-932 1216. 相似文献
988.
Andrei D. Zaikin Dmitrii S. Golubev Anne van Otterlo Gergely T. Zimanyi 《Czechoslovak Journal of Physics》1996,46(2):571-572
Quantum fluctuations cause a decay of the supercurrent in thin superconducting wires making them resistive even at very low temperatures. We derive a microscopic effective action formalism that goes beyond the usual TDGL approach and study quantum fluctuations of the superconducting order parameter at all temperatures belowT C . We calculate the quantum phase slip rate in thin superconducting wires, demonstrate the importance of dissipation in a quantum phase slip process, and evaluate the resistanceR(T) of the wire. In very thin wires the effect is well observable, even at zero temperature. 相似文献
989.
Karlov SS Lermontova EKh Zabalov MV Selina AA Churakov AV Howard JA Antipin MY Zaitseva GS 《Inorganic chemistry》2005,44(13):4879-4886
Synthesis of the title compounds, viz. [RN(CH2CHR'O)2]2Ge (1, R = Me, R' = H; 2, R = Me, R' = Ph; 3, R = Ph, R' = H), by the reaction of 2 equiv of corresponding dialkanolamines RN(CH2CHR'OH)2 (4, R = Me, R' = H; 5, R = Me, R' = Ph; 6, R = Ph, R' = H) with (AlkO)4Ge is reported. Composition and structures of all novel compounds were established by 1H and 13C NMR spectroscopy and mass spectrometry as well as elemental analysis data. The single-crystal X-ray diffraction of 2 has clearly indicated the presence of two transannular interactions Ge<--N in the compound. N atoms are cis-orientated. The compound 3 possesses long Ge...N distances. The structural data obtained from geometry optimizations by DFT calculations on 1-3 reproduces experimental results. Both cis- and trans-isomers were studied, and cis-configuration was found to be more thermodynamically stable for all three compounds. The transition states for possible cis <--> trans rearrangement processes in 1-3 were calculated. The properties of the Ge-O and Ge<--N bonds in 1-3 were analyzed by the AIM approach. The interactions between the Ge atom and N atoms as well as O atoms possess predominantly ionic character. 相似文献
990.