Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Stephan Henke"'
Dieses Buch stellt die hitzigsten und leidenschaftlichsten Fußballduelle in Deutschland und international vor. Geschichtsträchtige Derbys wie das Revierderby, El Clasico, das Rheinderby, das Hamburg-Derby oder auch berühmt-berüchtigte Derbys in L
Autor:
Wladimir Neumann, Doris Breuer, Hans-Peter Gail, Jens Hopp, Stephan Henke, Mario Trieloff, Tilman Spohn, Winfried H. Schwarz
The acapulcoites and lodranites are rare groups of primitive achondrites that originate from a common parent body and are of particular interest since they experienced only partial melting. We calculated thermal evolution and differentiation models o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c24b524c4995c7dca53f201fff59bbc2
https://elib.dlr.de/125969/
https://elib.dlr.de/125969/
Publikováno v:
Icarus. 226:212-228
We present a model of the thermal evolution of asteroids. Assuming an onion shell model for the H chondrite parent body we obtain constraints for the H chondrite asteroid parameters by fitting empirical H chondrite cooling ages of Estacado, Guarena,
Reconstruction of the thermal history of individual meteorites which can be assigned to the same parent body allows to derive general characteristics of the parent body, which hold important clues on the planetary formation process. This requires to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee92fe2201144223353ead078bc0cecc
http://arxiv.org/abs/1411.2850
http://arxiv.org/abs/1411.2850
Publikováno v:
Astronomy & Astrophysics. 589:A41
The construction of models for the internal constitution and the temporal evolution of large planetesimals, the parent bodies of chondrites, requires information on the heat conductivity of the complex mixture of minerals and iron metal found in chon
Publikováno v:
Astronomy and Astrophysics
The cooling histories of individual meteorites can be empirically reconstructed by using ages from different radioisotopic chronometers with distinct closure temperatures. For a group of meteorites derived from a single parent body such data permit t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44305c22762d13aab512eb2431debc69
http://arxiv.org/abs/1208.4633
http://arxiv.org/abs/1208.4633
The major aim of this study is to assess the effects of sintering of initially porous material on the thermal evolution of planetesimals, and to constrain the values of basic parameters that determined the structure and evolution of the H chondrite p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::381ba5e20ba5c43854647818422e52e0
http://arxiv.org/abs/1110.4818
http://arxiv.org/abs/1110.4818
Techn. Univ., Diplomarbeit--Ilmenau, 2007.
Externí odkaz:
http://www.gbv.de/dms/ilmenau/abs/525943781herrm.txt
Publikováno v:
Liebigs Annalen der Chemie. 1986:1413-1427
Acid-catalyzed reaction of natural secologanin (1) with ethylene glycol to 5a, followed by acetylation gave the peracetylated acetal 5b in almost quantitative yield. Oxidation of 5b with equimolar or catalytic amounts of osmium tetraoxide afforded st
Publikováno v:
Tetrahedron. 44:7145-7153
Oxidation of secologanin tetraacetate 2 with osmium tetroxide afforded 45% of the bicyclic hemiacetal 3, which gave secogalioside tetraacetate 8 in a 29% yield and in addition 62% of the tricyclic acetal 6 by treatment with the N-chlorosuccinimide di