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101.
Helge Glöckner 《Israel Journal of Mathematics》2006,155(1):205-252
We prove implicit function theorems for mappings on topological vector spaces over valued fields. In the real and complex
cases, we obtain implicit function theorems for mappings from arbitrary (not necessarily locally convex) topological vector
spaces to Banach spaces. 相似文献
102.
Bjrn Fritzell Britta Hammarberg Helge Schiratzki Stig Haglund Evert Knutsson Anders Mrtensson 《Journal of voice》1993,7(2)
From a total of 43 adductor spasmodic patients over a 10-year period, 11 underwent resection of a portion of the recurrent laryngeal nerve on one side. The initial results were excellent but a varying degree of recurrence took place in 8 patients. In 4, a reoperation was done. At the final follow-up, 2–8 years after the primary operation, 4 patients were no longer suffering from spasmodic dysphonia, another 5 were better off than before surgery, and 1 remained unchanged. Only 1 was worse off. Electromyographic findings indicated that the recurrence of symptoms was due to regeneration of the nerve fibers. 相似文献
103.
104.
Elfinn Larsen Helge Egsgaard Umesh C. Pande Mikael Begtrup 《Journal of mass spectrometry : JMS》1983,18(2):52-56
Eleven halogen substituted 1-methyl-2-phenylpyrazolium bromides or chlorides were investigated by field desorption, field ionization, and electron impact mass spectrometry. Dealkylation was found to be the predominant thermal decomposition. An exchange between covalent and ionic halogen prior to dealkylation was observed and is discussed in detail. 相似文献
105.
Wenche Langseth 《Fresenius' Journal of Analytical Chemistry》1986,325(3):267-271
Summary Reverse-phase separation of organic and inorganic mercury as alkyldithiocarbamate chelates was investigated. Three different ODS columns with varying silanol activity were tested. Complete resolution between methyl-, ethyl-, phenyl- and inorganic mercury was obtained with both diethyldithiocarbamate and pyrrolidinedithiocarbamate as chelating agent. The complexes were formed by liquid/liquid extraction from a buffer of pH 9.5 into chloroform. They were separated with a mobile phase made of a mixture of methanol/water or methanol/acetonitrile/ water, in both cases containing 50–100 M EDTA and 0–40 M alkyldithiocarbamate. They were detected by an UV spectrophotometer at 254 nm. The detection limits ranged from 0.15 to 0.5 ng.
Bestimmung von organischen und anorganischen Quecksilberverbindungen durch Umkehrphasen-HPLC nach Extraktion des Quecksilbers als Alkyldithiocarbamat-Chelat
Zusammenfassung Für das Verfahren wurden drei verschiedene ODS-Säulen mit verschiedener Silanolaktivität geprüft. Eine vollständige Trennung von Methyl, Ethyl-, Phenyl- und anorganischen Quecksilberverbindungen wurde mit Diethyldithiocarbamat und Pyrrolidindithiocarbamat als Chelatreagentien erreicht. Die Komplexe wurden durch Extraktion aus einem Puffer vom pH 9,5 in Chloroform gebildet. Sie wurden mit Hilfe einer mobilen Phase getrennt, die aus einer Mischung von Methanol/Wasser oder Methanol/Acetonitril/Wasser unter Zusatz von 50–100 M EDTA und 0–40 M Alkyldithiocarbamat bestand. Detektion erfolgte durch UV-Spektrophotometrie bei 254 nm. Die Nachweisgrenzen lagen bei 0,15 bis 0,5 ng.相似文献
106.
Helge Holden Raphael Hegh Krohn Steinar Johannesen 《Advances in Applied Mathematics》1983,4(4):402-421
Let Vi be short range potential and λi(ε) analytic functions. We show that the Hamiltonians Hε = −Δ + ε−2∑i = lnλi(ε)Vi((· − xi)/ε converge in the strong resolvent sense to the point interactions as ε → 0, and if Vi have compact support then the eigenvalues and resonances of Hε, which remains bounded as ε → 0, are analytic in ε in a complex neighborhood of zero. We compute in closed form the eigenvalues and resonances of Hε to the first order in ε. 相似文献
107.
Helge Elbrønd Jensen 《Journal of Functional Analysis》1983,50(2):127-132
The paper gives a complete classification of all separable C1-algebras with countable spectrum, for which each point in the spectrum has a finite neighbourhood. 相似文献
108.
Helge Willner 《无机化学与普通化学杂志》1984,514(7):171-178
Lower Chalcogen Fluorides. IX. Preparation and Characterization of SF3SSF During cocondensation of SF2 and SSF2 the new compound 1,3-Difluorotrisulphane-1,1-difluoride is formed in low yield and can be isolated by means of low temperature fractionation. The compound was unequivocally characterized by 19F-n.m.r,i.r.,Raman, and mass spectra. The unstable compound ist a colourless, viscous liquid with an extrapolated boiling point of 94°C and a melting point of ?62°C. It decomposes to SF4 and SSF2 in the gas phase. 相似文献
109.
The variation of the electronic transition moment, Re, in the intensity theory of diatomic molecules
Helge Klemsdal 《Journal of Quantitative Spectroscopy & Radiative Transfer》1973,13(6):517-541
The electronic transition moment functions, Re(rv′v″), have been compiled, and their variation with the r-centroid has been investigated. Connections between the Λ-quantum numbers, the multiplicities, Δre, and the variation of Re(rv′v″) were not found. 相似文献
110.