Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Roland H. Pawelke"'
Publikováno v:
Acta Astronautica. 143:272-284
Minimising the launch mass is an important aspect of exploration mission planning. In-situ resource utilisation (ISRU) can improve this by reducing the amount of terrestrial materials needed for planetary exploration activities. We report on a recent
Autor:
Xavier Geneste, Stefan Hummel, Ivar Wernhus, Alexander Reissner, Arild Vik, Jarle Farnes, Roland H. Pawelke, Dusan Cabelka, Tjalve Svendsen, Max Schautz, Joachim Gerger
Publikováno v:
Journal of Alloys and Compounds. 645:S9-S13
The next generation of telecommunication satellites will demand a platform payload performance in the range of 30+ kW within the next 10 years. At this high power output, a Regenerative Fuel Cell Systems (RFCS) offers an efficiency advantage in speci
Autor:
Michael Felderhoff, Borislav Bogdanović, Claudia Weidenthaler, Roland H. Pawelke, Ferdi Schüth
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 635:265-270
Ternary halide systems KMIICl3 (MII = Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn) have been prepared by mechanochemical synthesis. Furthermore, TiCl2 was converted to Ti7Cl16 by mechanochemical treatment. For most samples, the X-ray powder diffraction patterns c
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 629:2274-2281
The dinuclear complex [LFeIII(mu(2)-O)(FeL)-L-III] (1) (H2L = N,N'-dimethyl-N,N'-bis(3,5-di-tert-butyl-2-hydroxybenzyl)-1,2-diaminoeth ane) has been synthesized and structurally characterized by elemental analysis, MALDI-TOF MS, FTIR, and single crys
Publikováno v:
Scripta Materialia. 59:515-517
We describe the ball-milling synthesis of alkali metal deuterides from commercial lithium aluminium deuteride. This reaction principle was exemplified by the mechanochemical synthesis of NaAlD 4 and KAlD 4 . NaAlD 4 was prepared on the multi-gram sca
Autor:
Roland H. Pawelke
Publikováno v:
Nature Precedings.
A simple ball milling route to the tetrayanoborate anion is presented: The K[B(CN)4] synthesis is one fine example, how a synthesis problem based on solubility may be solved by a ball milling approach. The solid state 13C- and 11B-MAS-NMR spectra hav
Autor:
Michael Felderhoff, Roland H. Pawelke, Claudia Weidenthaler, Ferdi Schueth, Borislav Bogdanović
Publikováno v:
ChemInform. 40