TY  - JOUR
A1  - Overduin, James
A1  - Blome, Hans-Joachim
A1  - Hoell, Josef
T1  - Wolfgang Priester: from the big bounce to the Lambda-dominated universe
JF  - Naturwissenschaften
Y1  - 2007
SN  - 0028-1042
VL  - 94
IS  - 6
SP  - 417
EP  - 429
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
A1  - Schönwald, J.
A1  - Konrath, B.
T1  - Verwendung von Leichtgas bei Brandsimulationen - unzulässig oder sinnvoll?
JF  - VFDB-Zeitschrift : Forschung, Technik und Management im Brandschutz. 56 (2007), H. 1
Y1  - 2007
SN  - 0042-1804
SP  - 29
EP  - 31
ER  - 
TY  - BOOK
A1  - Esch, Thomas
T1  - Verbrennungstechnik. - 	6. Aufl., [Umdruck]. - (Angewandte Thermodynamik und Verbrennungstechnik)
Y1  - 2007
PB  - Fachhochschule Aachen, Lehr- und Forschungsgebiet Thermodynamik und Verbrennungstechnik
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Kowalski, Julia
A1  - Bartelt, Perry
A1  - McElwaine, J.
T1  - Two-phase debris flow modeling
T2  - Geophysical Research Abstracts
Y1  - 2007
N1  - A-08119
ER  - 
TY  - JOUR
A1  - Wittmann, Klaus
A1  - Bibring, J.-P.
A1  - Rosenbauer, H.
A1  - Boehnhardt, H.
T1  - The Rosetta Lander (“Philae”) Investigations  / Bibring, J.-P. ; Rosenbauer, H. ; Boehnhardt, H. ;  [...] Wittmann, K.
JF  - Space Science Reviews. 128 (2007), H. 1-4
Y1  - 2007
SN  - 0038-6308
SP  - 205
EP  - 220
ER  - 
TY  - JOUR
A1  - Robinson, A. E.
A1  - Rönna, Uwe
A1  - Funke, Harald
T1  - Testing of a 10 kW diffusive micro-mix combustor for hydrogen-fuelled micro-scale gas turbines
JF  - International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications <7, 2007, Freiburg, Breisgau>  ; PowerMEMS ; 7
Y1  - 2007
SP  - 225
EP  - 228
ER  - 
TY  - JOUR
A1  - Bécret, P.
A1  - Grossen, J.
A1  - Trilla, J.
A1  - Robinson, A.
A1  - Bosschaerts, W.
A1  - Funke, Harald
A1  - Hendrick, P.
T1  - Testing and numerical study of a 10 kW hydrogen micro combustor
JF  - International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications <7, 2007, Freiburg, Breisgau>  ; PowerMEMS ; 7
Y1  - 2007
SP  - 367
EP  - 370
ER  - 
TY  - JOUR
A1  - Henn, Gudrun
A1  - Polaczek, Christa
T1  - Studienerfolg in den Ingenieurwissenschaften
JF  - Das Hochschulwesen : HSW ; Forum für Hochschulforschung, -praxis und -politik
Y1  - 2007
SN  - 0018-2974
VL  - 55
IS  - 5
SP  - 144
EP  - 147
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Wi, Bong
T1  - Solar Sail Kinetic Energy Impactor Trajectory Optimization for an Asteroid-Deflection Mission
JF  - Journal of Spacecraft and Rockets. 44 (2007), H. 4
Y1  - 2007
SN  - 0022-4650
N1  - 2. ISSN: 1533-6794
SP  - 755
EP  - 764
ER  - 
TY  - CHAP
A1  - Loeb, Horst Wolfgang
A1  - Schartner, Karl-Heinz
A1  - Dachwald, Bernd
A1  - Seboldt, Wolfgang
T1  - SEP-Sample return from a main belt asteroid
T2  - 30th International Electric Propulsion Conference
N2  - By DLR-contact, sample return missions to the large main-belt asteroid “19, Fortuna” have been studied. The mission scenario has been based on three ion thrusters of the RIT-22 model, which is presently under space qualification, and on solar arrays equipped with triple-junction GaAs solar cells. After having designed the spacecraft, the orbit-to-orbit trajectories for both, a one-way SEP mission with a chemical sample return and an all-SEP return mission, have been optimized using a combination of artificial neural networks with evolutionary algorithms. Additionally, body-to-body trajectories have been
investigated within a launch period between 2012 and 2015. For orbit-to-orbit calculation, the launch masses of the hybrid mission and of the all-SEP mission resulted in 2.05 tons and 1.56 tons, respectively, including a scientific payload of 246 kg. For the related transfer
durations 4.14 yrs and 4.62 yrs were obtained. Finally, a comparison between the mission scenarios based on SEP and on NEP have been carried out favouring clearly SEP.
Y1  - 2007
SP  - 1
EP  - 11
ER  -