排序方式: 共有34条查询结果,搜索用时 15 毫秒
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G. T. Jones R. W. L. Jones B. W. Kennedy D. R. O. Morrison D. B. Miller M. M. Mobayyen S. Wainstein M. Aderholz D. Hantke U. F. Katz J. Kern N. Schmitz W. Wittek H. P. Borner G. Myatt F. W. Bullock S. Burke 《Zeitschrift fur Physik C Particles and Fields》1993,58(3):375-386
Evidence is presented for diffractive production of -mesons and of -systems invp and
chargedcurrent interactions. In the (anti-)neutrino energy range 10 GeVE
v
<60 gev=" the=" cross=" sections=" for=" diffractive=">60> and diffractive production are found to be (0.64±0.14 (stat.)±0.08 (syst.))% and (0.28±0.08 (stat.)±0.04 (syst.))% of the charged-current cross section. The diffractive signal is consistent with being entirely due to diffractivea
1 production. However, the data cannot distinguish between diffractivea
1 and diffractive nonresonant production. The experimental distributions ofW, Q
2,x
Bj
andy
Bj
for diffractive and events are consistent with model predictions. 相似文献
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Summary Clarithromycin and its main metabolite R-OH-clarithromycin are determined in human serum and urine. The method is based on liquid-liquid extraction, reversed-phase chromatography and dual-mode coulometric detection. The method is fairly selective. No interferences were observed in samples from human volunteers. Detection limits were 0.05 mg/l serum and 1.3 mg/l urine. 相似文献
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G. T. Jones R. W. L. Jones B. W. Kennedy D. R. O. Morrison M. M. Mobayyen S. Wainstein M. Aderholz D. Hantke E. Hoffmann U. F. Katz J. Kern N. Schmitz W. Wittek H. P. Borner G. Myatt D. Radojicic S. Burke 《Zeitschrift fur Physik C Particles and Fields》1991,51(2):205-208
Using data obtained with the bubble chamber BEBC at CERN, the inclusivef 2 (1270) meson production invp and \(\bar vp\) charged current reactions is studied. It is found thatf 2 production occurs mainly in events with a hadronic invariant massW?7 GeV. In these events, the averagef 2 multiplicity is about half the average ρO multiplicity, and thex F andp T 2 distributions of thef 2 agree in shape with those of the ρO. The predictions of a semi-empirical model (Wells model) are in accord with the measured multiplicities atW>7 GeV, whereas at lowerW the model predicts too largef 2 multiplicities. 相似文献
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D. Jaworek R. Küppers E. Borner und K. Borner 《Fresenius' Journal of Analytical Chemistry》1986,324(3-4):352
Schlußfolgerung Der neue Theophyllin-Test verfügt, wie vorliegende Untersuchungen gezeigt haben, über gute Präzision und Richtigkeit, so daß zuverlässige Ergebnisse erhalten werden und der Einsatz größerer Serien möglich wird.
New photometric turbidity test for the determination of theophylline in serum and plasma相似文献
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Jones G. T. Jones R. W. L. Kennedy B. W. Klein H. Morrison D. R. O. Wachsmuth H. Miller D. B. Mobayyen M. M. Wainstein S. Aderholz M. Hantke D. Katz U. F. Kern J. Schmitz N. Wittek W. Borner H. P. Myatt G. Cooper-Sarkar A. M. Guy J. Venus W. Bullock F. W. Burke S. 《Zeitschrift fur Physik C Particles and Fields》1994,63(4):601-609
Zeitschrift für Physik C Particles and Fields - A set of proton longitudinal polarized distributions, worked out under the assumption of small gluon polarization, is used to evaluate several... 相似文献
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Jones G. T. Jones R. W. L. Kennedy B. W. Klein H. Morrison D. R. O. Wachsmuth H. Miller D. B. Mobayyen M. M. Wainstein S. Aderholz M. Hantke D. Katz U. F. Kern J. Schmitz N. Wittek W. Borner H. P. Myatt G. Cooper-Sarkar A. M. Guy J. Venus W. Bullock F. W. Burke S. 《Zeitschrift fur Physik C Particles and Fields》1994,63(4):575-579
The analytic expressions for the production cross sections of polarized bottom and top quarks ine
*
e
– annihilation are explicitly derived at the one-loop order of strong interactions. Chirality-violating mass effects will reduce the longitudinal spin polarization for the light quark pairs by an amount of 3%, when one properly considers the massless limit for the final quarks. Numerical estimates of longitudinal spin polarization effects in the processese
*
e
–b
(g) ande
*
e
–t
(g) are presented.supported in part by the BMFT, Germany under contract 06MZ730 相似文献
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For the quantitative determination of trovafloxacin (a new naphthyridinone antibacterial agent) in serum and urine a simple isocratic HPLC method with fluorimetric detection is described. Serum was deproteinised with a mixture of acetonitrile and perchloric acid. The protein-free extract was separated on a reversed-phase column (Nucleosil 100-5 C18) and quantified by means of fluorescence (excitation 275 nm, emission 405 nm). The mobile phase consisted of a mixture of 250 ml acetonitrile and 750 ml distilled water containing 10 mmol/l tetrabutylammonium phosphate. Urine was diluted with 0.25 mol/l phosphoric acid 1:20 (v/v) which was adjusted to pH 3.6 with sodium hydroxide solution. Diluted urine samples were separated on a cation-exchange column (Nucleosil 100-5 SA) and also detected by means of fluorescence. Trovafloxacin was sufficiently separated from endogenous compounds. Results of validation are given. The method was applied successfully to a study of healthy volunteers. 相似文献
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