TY  - JOUR
A1  - Ley, Wilfried
A1  - Plescher, Engelbert
A1  - Scholz, Artur
A1  - Piepenbrock, Johannes
T1  - COMPASS-1 picosatellite project / Ley, Wilfried ; Plescher, Engelbert ; Scholz, Artur ; Piepenbrock, Johannes
JF  - Small satellites for earth observation : digest of the 6th International symposium of the International Academy of Astronautics, Berlin, April 23 - 26, 2007 / ed. by Rainer Sandau; Hans-Peter Röser; Arnoldo Valenzuela
Y1  - 2007
SN  - 9783896855718
N1  - Symposium on Small Satellites for Earth Observation ; (6, 2007, Berlin)
SP  - 147
EP  - 150
PB  - Wissenschaft und Technik Verl.
CY  - Berlin
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  - 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  - Funke, Harald
A1  - Robinson, A. E.
T1  - Development of a new test rig for a micro scale hydrogen combustion chamber
JF  - Proceedings of the 2nd European Conference for Aero-Space Sciences : July 1 - 6, 2007, Brussels, Belgium
Y1  - 2007
N1  - European Conference for Aerospace Sciences <2, 2007, Brüssel> ; EUCASS <2, 2007, Brüssel> ; Paper No. 22
SP  - 1
EP  - 8
PB  - -
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  - 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  - McArdell, Brian W.
A1  - Bartelt, Perry
A1  - Kowalski, Julia
T1  - Field observations of basal forces and fluid pore pressure in a debris flow
JF  - Geophysical Research Letters (GRL)
N2  - Using results from an 8 m2 instrumented force plate we describe field measurements of normal and shear stresses, and fluid pore pressure for a debris flow. The flow depth increased from 0.1 to 1 m within the first 12 s of flow front arrival, remained relatively constant until 100 s, and then gradually decreased to 0.5 m by 600 s. Normal and shear stresses and pore fluid pressure varied in-phase with the flow depth. Calculated bulk densities are ρb = 2000–2250 kg m−3 for the bulk flow and ρf = 1600–1750 kg m−3 for the fluid phase. The ratio of effective normal stress to shear stress yields a Coulomb basal friction angle of ϕ = 26° at the flow front. We did not find a strong correlation between the degree of agitation in the flow, estimated using the signal from a geophone on the force plate, and an assumed dynamic pore fluid pressure. Our data support the idea that excess pore-fluid pressures are long lived in debris flows and therefore contribute to their unusual mobility.
KW  - debris flow
Y1  - 2007
SN  - 0094-8276
VL  - 34
IS  - 7
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Seboldt, W.
A1  - Richter, L.
T1  - Multiple rendezvous and sample return missions to near-Earth objects using solar sailcraft / Dachwald, B. ; Seboldt, W. ; Richter, L.
JF  - Acta Astronautica. 59 (2006), H. 8-11
Y1  - 2006
SN  - 0094-5765
N1  - International Conference on Low Cost Planetary Missions <5, 2003, Noordwijk> ; Selected Proceedings
SP  - 768
EP  - 776
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Mengali, Giovanni
A1  - Quarta, Alessandrao A.
A1  - Macdonald, Malcolm
T1  - Parametric Model and Optimal Control of Solar Sails with Optical Degradation
JF  - Journal of guidance, control, and dynamics. 29 (2006), H. 5
Y1  - 2006
SN  - 0162-3192
N1  - 2. ISSN: 0731-5090
SP  - 1170
EP  - 1178
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Kahle, Ralph
A1  - Wie, Bong
T1  - Solar Sailing Kinetic Energy Impactor (KEI) Mission Design Tradeoffs for Impacting and Deflecting Asteroid 99942 Apophis
JF  - AIAA Guidance, Navigation, and Control Conference & Exhibit - AIAA Atmospheric Flight Mechanics Conference & Exhibit - AIAA Modeling and Simulation Technologies Conference & Exhibit - AIAA/AAS Astrodynamics Specialist Conference & Exhibit : [21 - 24 August 2006, Keystone, Colorado ; papers]. - (AIAA meeting papers on disc ; [11.]2006,19-20 )
Y1  - 2006
SN  - 1-56347-802-1
N1  - American Institute of Aeronautics and Astronautics <Reston, Va.> ; American Astronautical Society ; AIAA/AAS Astrodynamics Specialist Conference & Exhibit <2006,  Keystone, Colo.> ; AIAA paper number: AIAA-2006-6178
SP  - 1
EP  - 20
PB  - American Institute of Aeronautics and Astronautics
CY  - Reston, Va.
ER  -