Zobrazeno 1 - 10
of 50
pro vyhledávání: '"H. Kapeller"'
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 11, Iss 6, Pp 1589-1597 (2011)
Floods including intensive bedload transport represent a severe hazard to the often densely populated alluvial fans of small Alpine watersheds. In order to minimize the risk of future inundation, an existing bedload deposition area on the fan upstrea
Externí odkaz:
https://doaj.org/article/ed3810cc7c994eae8f8ee54686409a01
Publikováno v:
IEEE Transactions on Magnetics. 54:1-4
In many electromagnetic energy conversion processes, transformers, or electric machines are controlled with modern power converters at high frequencies up to a range of several 10 kHz. Such operation modes lead to not negligible, distinct iron losses
Autor:
Johannes Huebl, H. Kapeller, Roland Kaitna, J. Zlatic-Jugovic, Michael Chiari, M. Kerschbaumer, M. Hengl
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 11, Iss 6, Pp 1589-1597 (2011)
Floods including intensive bedload transport represent a severe hazard to the often densely populated alluvial fans of small Alpine watersheds. In order to minimize the risk of future inundation, an existing bedload deposition area on the fan upstrea
Publikováno v:
Tetrahedron. 54:11043-11062
1,4-Anhydro-3-O-benzyl-2,5-dideoxy-4a-carba-DL- erythro -hex-1-enitol-uronic acid ( 5 ) was transformed by chain degradation under suitable protection and reaction with m -CPBA into 5-O-acetyl-1,2-anhydro-4a-carba-α-DL-xylofuranose ( 37 ). Replaceme
Publikováno v:
Tetrahedron. 54:1439-1456
Methyl 4-acetoxycyclopent-2-enylmethylcarboxylate ( 2 ) and the corresponding carbonate 3 have been treated with sodium salts and aluminum amides of pyrimidines, purines and methyl 1 H -1,2,4-triazole-3-carboxylate with a catalyst formed from bis(dib
Autor:
H. Kapeller, Herfried Griengl
Publikováno v:
Tetrahedron. 53:14635-14644
The sugar part of carbapolyoxins and carbanikkomycins, methyl 5-azido-5-deoxy-2,3-O-isopropylidenecarba-α-D-allo-hexafuranuronate (16), was synthesised starting from enantiomerically enriched norborn-5-en-2-yl acetate (2). For the introduction of th
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 128:191-200
A new synthetic pathway to the carbocyclic nucleoside analogues (±)-aristeromycin (15) and its 5′-homo-derivative (17) has been developed starting form norborn-5-en-2-one using nucleophilic substitution of a sulfonate ester group by the aglycone.
Publikováno v:
Tetrahedron: Asymmetry. 8:245-251
(2S,3S,4S)-4-(4- Acetoxyphenyl)-2-amino-3-methylbutan-4-olide (S,S,S)-11 , a precursor for the aminoacid part of Nikkomycin B, was prepared in a five step synthesis in 12% yield, involving two enzymatic steps. First enantiopurity was achieved by reso
Publikováno v:
Macromolecular Chemistry and Physics. 197:329-341
The photocrosslinking mechanism of copolymers of styrene (ST) with 4-vinylbenzyl selenocyanate (VBSe), 4-vinylbenzyl thiocyanate (VBT) or 4-vinylbenzyl bromide (VBBr) was investigated using low-molecular-weight model compounds. The photochemistry of