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991.
J. Badalec J. Ďatlov K. Jakubka VI. Kopecký Š. Körbel L. Kryška P. Magula J. Stöckel F. Žáček S. Nanobashvili 《Czechoslovak Journal of Physics》1983,33(7):787-790
The work is devoted to the study of the LH wave effect on the peripheral plasma of the TM-1-MH tokamak. The observed enhancement of the ion saturated current in the limiter shadow is interpreted as heating of the peripheral ions by absorption of decay waves generated in this region due to the nonlinear wave-plasma interaction. 相似文献
992.
993.
The coercivity Hc of compacts of thin (0.1?5 μ diameter) nickel wires embedded in a silver matrix has been measured as a function of the effective wire radius deff. Hc increases linearly with 1/deff2, in agreement with Aharoni's theory of magnetization reversal by curling. From the slope, δHc/gd (deff?2), upper and lower bounds for the exchange constant A of Nickel have been derived (77K): 1.5 × 10?11 Wsec/m ? 3.0 × 10?11 Wsec/m. 相似文献
994.
995.
996.
Z. Gregorowicz P. Górka und St. Kowalski 《Fresenius' Journal of Analytical Chemistry》1979,294(4):285
Ohne Zusammenfassung
Spectrophotometric determination of iron(III) and chromium(VI) by means of helasol violet 4R相似文献
997.
Ohne Zusammenfassung 相似文献
998.
Four poly(vinyl chloride) samples containing different structural irregularities were thermally decomposed. The rates of HCl evolution were compared to the rates of radical generation in the samples. Orders of stabilities related to the structural entities for the initiation of decomposition and for the chain lengths of HCl evolution were established. 相似文献
999.
The hyperfine structure of dilute 166Er impurities in Au has been investigated between 1.8 and 60 K by Mössbauer spectroscopy. The hyperfine spectrum of the Γ7 electronic ground state is clearly observed below 4.2 K while at higher temperatures there is an indication of the contribution from the excited CEF-states Γ(1)8 and Γ6. Using Hirst's relaxation theory for the Γ7 ground state the magnetic hyperfine coupling constant A=(247±3) MHz and the exchange coupling constant Jsf=(0.10±0.02)eV were derived. A quadruple coupling constant B of about 1 MHz was estimated from the hyperfine pattern of the Γ(1)8 quartet. 相似文献
1000.
In the cationic polymerization of 3,3-bis(chloromethyl)oxetane induced by BF3 the solvent polarity (toluene, methylene chloride, ethylene chloride, nitrobenzene, and nitromethane) does not influence the ktr/kp ratio, where ktr stands for the rate constant of chain transfer to polymer. Increase of the overall polymerization rate is due mainly to the increase of ki. The application of the steady-state conditions in which the slow formation of the active centers is compensated by the unimolecular chain transfer to polymer allowed the determination of ktr/kp ratios for several chain-transfer agents of low molecular weight. Alcohols and ethers of different basicities were used. It was established that the ktr/kp ratio is a linear function of ?pKa of the chain-transfer agents. 相似文献