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Titlebook: Mathematik für Physiker; Basiswissen für das Klaus Weltner (Professor für Didaktik der Physik) Book 1980Latest edition Springer Fachmedien

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發(fā)表于 2025-3-23 11:38:11 | 只看該作者
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發(fā)表于 2025-3-23 14:34:04 | 只看該作者
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發(fā)表于 2025-3-23 19:08:03 | 只看該作者
Klaus Weltnerlyses showed that 5-bromouracil (13) and 4-thiouracil (14) derivatives through the C-2 carbonyl group. In the present experiment we observed .C magnetic resonances of single base derivatives in solution and tried to find interaction sites from the concentration dependency of chemical shifts.
14#
發(fā)表于 2025-3-24 01:11:37 | 只看該作者
Klaus Weltnerlyses showed that 5-bromouracil (13) and 4-thiouracil (14) derivatives through the C-2 carbonyl group. In the present experiment we observed .C magnetic resonances of single base derivatives in solution and tried to find interaction sites from the concentration dependency of chemical shifts.
15#
發(fā)表于 2025-3-24 03:47:06 | 只看該作者
Klaus Weltnerformation about relaxation times and the structure of the molecules under investigation. Owing to the rather short relaxation times, spectra in CW mode can be recorded using large RF power, and pulsed spectra can be very quickly obtained owing to short delay times.
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發(fā)表于 2025-3-24 08:09:22 | 只看該作者
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發(fā)表于 2025-3-24 16:14:32 | 只看該作者
Klaus Weltnerrmorite structure as revealed by XRD, IR and .Si MAS NMR spectroscopies, with a drierketten arrangement of silicate chains of which the length is obtained from the Q./Q. ratio. Chains are mainly pentamers when C/S? 1 and dimers when C/S≥1.5. A structural model is proposed for accounting for the evol
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發(fā)表于 2025-3-24 21:12:53 | 只看該作者
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發(fā)表于 2025-3-25 02:31:39 | 只看該作者
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