TY  - CHAP
A1  - Schneckenburger, N.
A1  - Franzen, N.
A1  - Gligorevic, Snjezana
A1  - Schnell, M.
T1  - L-band compatibility of LDACS1
T2  - IEEE/AIAA 30th Digital Avionics Systems Conference (DASC) : 16 - 20 Oct. 2011, Seattle, Wash.
Y1  - 2011
SN  - 978-1-61284-797-9
SN  - 2155-7195
SP  - 4C3-1
EP  - 4C3-11
ER  - 
TY  - CHAP
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Fuzzy representations and control for domestic service robots in Golog
T2  - Intelligent robotics and applications : 4th International conference, ICIRA 2011, Aachen, Germany, December 6-8, 2011, proceedings, part I. (Lecture notes in computer science ; 7102)
Y1  - 2011
SN  - 978-3-642-25486-4
SP  - 241
EP  - 250
ER  - 
TY  - CHAP
A1  - Sauerborn, Markus
T1  - Investigations to the influence of clouds and aerosols to the haze of the sunshape
T2  - SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain
Y1  - 2011
CY  - Granada
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Scheik, Sven
A1  - Michaeli, Walter
A1  - Grönlund, Oliver
A1  - Neuß, Andreas
A1  - Wunderle, Johannes
A1  - Poprawe, Reinhart
A1  - Rösner, A.
A1  - Bobzin, Kirsten
A1  - Schläfer, Thomas
A1  - Theiß, Sebastian
A1  - Kutschmann, Pia
A1  - Haberstroh, Edmund
A1  - Flock, Dustin
A1  - Bührig-Polaczek, Andreas
A1  - Jakob, M.
ED  - Thoben, Klaus-Dieter
T1  - Novel process chains for the production of plastics/metal-hybrids
T2  - 17th International Conference on Concurrent Enterprising (ICE 2011) : Aachen, Germany, 20 - 22 June 2011
Y1  - 2011
SN  - 978-1-457-70772-8 ; 978-3-943024-05-0
SP  - 596
EP  - 604
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Zabirov, Alexander
T1  - Simulation des Tropfenübergangs beim MSG-Impulslichtbogenschweißen
T2  - Große Schweißtechnische Tagung 2011 : Studentenkongress 2011, Abschlusskolloquium Lichtbogenschweißen 2011; Vorträge der Veranstaltung in Hamburg
Y1  - 2011
SN  - 978-3-87155-267-0
SP  - 554
EP  - 559
PB  - DVS-Media
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Abdurakhmanov, Aydemir
A1  - Turichin, Gleb
A1  - Valdaitseva, Elena
A1  - Bach, Friedrich-Wilhelm
A1  - Hassel, Thomas
A1  - Beniyashi, Alexander
T1  - Investigation of factors for defect-free weld formation by non-vacuum electron beam welding
T2  - Laser technologies in welding and materials processing : proceedings of the fifth international conference, 24 - 27 May 2011, Katsiveli, Crimea, Ukraine
Y1  - 2011
SP  - 104
EP  - 109
PB  - Paton Publ. House
CY  - Kiev
ER  - 
TY  - CHAP
A1  - Reindl, Lukas
A1  - Butenweg, Christoph
A1  - Kubalski, Thomas
T1  - Numerical simulation of unreinforced masonry walls subject to dynamic out-of-plane loading
T2  - COMPDYN 2011 : ECCOMAS Thematic Conference ; Proceedings of the 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering ; 25-28 May, 2011, Corfu, Greece / Eds.: M. Papadrakakis ...
Y1  - 2011
SN  - 978-960-99994-0-3
SP  - 1
EP  - 10
PB  - National Technical Univ. of Athens
CY  - Athen
ER  - 
TY  - CHAP
A1  - Rahier, Michael
A1  - Ritz, Thomas
A1  - Wallenborn, Ramona
T1  - Ortsbezogene Anwendungen und Dienste im eCarSharing
T2  - 8. GI-ITG-KuVS-Fachgespräch Ortsbezogene Anwendungen und Dienste
Y1  - 2011
SN  - 978-3-8325-3041-9
SP  - 61
EP  - 74
PB  - Logos-Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Pfaff, Raphael
A1  - Larkowski, Tomasz
A1  - Burnham, Keith J.
T1  - An application of adaptive control in the behavioural framework
T2  - 21st International Conference on Systems Engineering (ICSEng) : 16 - 18 Aug. 2011, Las Vegas, Nevada ; proceedings
Y1  - 2011
SN  - 978-1-4577-1078-0 ; 978-0-7695-4495-3
SP  - 49
EP  - 54
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Park, Jin
A1  - El-Daib, Khaled
A1  - Butenweg, Christoph
A1  - Gellert, Christoph
T1  - A novel macroelement approach for masonry walls
T2  - Proceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011 : Leuven, Belgium, 4 - 6 July 2011 / Katholieke Universiteit Leuven, ... G. De Roeck ... (eds)
Y1  - 2011
SN  - 978-90-76019-31-4
SP  - 3281
EP  - 3286
PB  - K. U. Leuven, Dep. of Civil Engineering
CY  - Leuven
ER  - 
TY  - CHAP
A1  - Olaru, Alexandra Maria
A1  - Kowalski, Julia
A1  - Sethi, Vaishali
A1  - Blümich, Bernhard
T1  - Fluid Transport in Porous Media probed by Relaxation-Exchange NMR
T2  - 2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec.
Y1  - 2011
N1  - H12B-07; American Geophysical Union
ER  - 
TY  - CHAP
A1  - Ohndorf, Andreas
A1  - Dachwald, Bernd
A1  - Seboldt, Wolfgang
A1  - Schartner, Karl-Heinz
T1  - Flight times to the heliopause using a combination of solar and radioisotope electric propulsion
T2  - 32nd International Electric Propulsion Conference
N2  - We investigate the interplanetary flight of a low-thrust space probe to the heliopause,located at a distance of about 200 AU from the Sun. Our goal was to reach this distance within the 25 years postulated by ESA for such a mission (which is less ambitious than the 15-year goal set by NASA). Contrary to solar sail concepts and combinations of allistic and electrically propelled flight legs, we have investigated whether the set flight time limit could also be kept with a combination of solar-electric propulsion and a second, RTG-powered upper stage. The used ion engine type was the RIT-22 for the first stage and the RIT-10 for the second stage. Trajectory optimization was carried out with the low-thrust optimization program InTrance, which implements the method of Evolutionary Neurocontrol,using Artificial Neural Networks for spacecraft steering and Evolutionary Algorithms to optimize the Neural Networks’ parameter set. Based on a parameter space study, in which the number of thrust units, the unit’s specific impulse, and the relative size of the solar power generator were varied, we have chosen one configuration as reference. The transfer time of this reference configuration was 29.6 years and the fastest one, which is technically
more challenging, still required 28.3 years. As all flight times of this parameter study were longer than 25 years, we further shortened the transfer time by applying a launcher-provided hyperbolic excess energy up to 49 km2/s2. The resulting minimal flight time for the reference configuration was then 27.8 years. The following, more precise optimization to a launch with the European Ariane 5 ECA rocket reduced the transfer time to 27.5 years. This is the fastest mission design of our study that is flexible enough to allow a launch every
year. The inclusion of a fly-by at Jupiter finally resulted in a flight time of 23.8 years,which is below the set transfer-time limit. However, compared to the 27.5-year transfer,this mission design has a significantly reduced launch window and mission flexibility if the
escape direction is restricted to the heliosphere’s “nose".
KW  - low-thrust trajectory optimization
KW  - heliosphere
KW  - ion propulsion
Y1  - 2011
N1  - IEPC-2011-051
32nd International Electric Propulsion Conference,September 11–15, 2011
Wiesbaden, Germany
SP  - 1
EP  - 12
ER  - 
TY  - CHAP
A1  - Meskouris, Konstantin
A1  - Holtschoppen, Britta
A1  - Butenweg, Christoph
A1  - Rosin, Julia
T1  - Seismic analysis of liquid storage tanks
T2  - Earthquake Geology and Archaeology: Science, Society and Critical facilities : proceedings ; 2nd INQUA-IGCP 567 International Workshop on Active Tectonics, Earthquake Geology, Archaeology and Engineering ; 19-24 September 2011, Corinth (Greece) / Eds.: C. Grützner ; R. Pérez-Lopez ; T. Fernández Steeger ; I. Papanikolaou ; K. Reicherter ; P. G. Silva ; A. Vött. Volume 2
Y1  - 2011
SN  - 978-960-466-093-3
SP  - 136
EP  - 139
PB  - The Natural hazards Laboratory, National and Kapodistrian University of Athens
CY  - Athens
ER  - 
TY  - CHAP
A1  - Loeb, Horst W.
A1  - Schartner, Karl-Heinz
A1  - Dachwald, Bernd
A1  - Ohndorf, Andreas
A1  - Seboldt, Wolfgang
T1  - An Interstellar – Heliopause mission using a combination of solar/radioisotope electric propulsion
T2  - Presented at the 32nd International Electric Propulsion Conference
N2  - There is common agreement within the scientific community that in order to understand our local galactic environment it will be necessary to send a spacecraft into the region beyond the solar wind termination shock. Considering distances of 200 AU for a new mission, one needs a spacecraft travelling at a speed of close to 10 AU/yr in order to keep the mission duration in the range of less than 25 yrs, a transfer time postulated by ESA.Two propulsion options for the mission have been proposed and discussed so far: the solar sail propulsion and the ballistic/radioisotope electric propulsion. As a further alternative, we here investigate a combination of solar-electric propulsion and radioisotope-electric propulsion. The solar-electric propulsion stage consists of six 22 cm diameter “RIT-22”ion thrusters working with a high specific impulse of 7377 s corresponding to a positive grid voltage of 5 kV. Solar power of 53 kW BOM is provided by a light-weight solar array. The REP-stage consists of four space-proven 10 cm diameter “RIT-10” ion thrusters that will be operating one after the other for 9 yrs in total. Four advanced radioisotope generators provide 648 W at BOM. The scientific instrument package is oriented at earlier studies. For its mass and electric power requirement 35 kg and 35 W are assessed, respectively. Optimized trajectory calculations, treated in a separate contribution, are based on our “InTrance” method.The program yields a burn out of the REP stage in a distance of 79.6 AU for a usage of 154 kg of Xe propellant. With a C3 = 45,1 (km/s)2 a heliocentric probe velocity of 10 AU/yr is reached at this distance, provided a close Jupiter gravity assist adds a velocity increment of 2.7 AU/yr. A transfer time of 23.8 yrs results for this scenario requiring about 450 kg Xe for the SEP stage, jettisoned at 3 AU. We interpret the SEP/REP propulsion as a competing alternative to solar sail and ballistic/REP propulsion. Omiting a Jupiter fly-by even allows more launch flexibility, leaving the mission duration in the range of the ESA specification.
Y1  - 2011
N1  - 32nd International Electric Propulsion Conference, 11-15 September. Wiesbaden, Germany
SP  - 1
EP  - 7
ER  - 
TY  - CHAP
A1  - Lao, B.
A1  - Bührig-Polaczek, A.
A1  - Röth, Thilo
ED  - Wielage, Bernhard
T1  - Funktionsintegrierte Leichtbaustrukturen in gussintensiver Metall-Hybridbauweise
T2  - Verbundwerkstoffe und Werkstoffverbunde: Tagungsband zum 18. Symposium ; 30.03.2011 bis 01.04.2011, Chemnitz
Y1  - 2011
SN  - 978-3-00-033801-4
N1  - Schriftenreihe Werkstoffe und werkstofftechnische Anwendungen ; 41
SP  - 413
EP  - 421
PB  - Eigenverlag
CY  - Chemnitz
ER  - 
TY  - CHAP
A1  - Küppers, Christine
A1  - Groebel, Simone
A1  - Kuperjans, Isabel
A1  - Dielmann, Klaus-Peter
T1  - Molekulargenetische Analysen zur Optimierung der Biogasgewinnung
T2  - Biogas 2011 : 4. Innovationskongress ; Effizienzsteigerung von Biogasanlagen ; Vorstellung der 17 besten Biogas-Innovationen der letzten 12 Monate ; 12. - 13. Mai 2011, im ZUK der Deutschen Bundesstiftung Umwelt ; Tagungsband
Y1  - 2011
SN  - 978-3-9813776-1-3
SP  - 45
EP  - 48
PB  - Profair Consult+Project
CY  - Hildesheim
ER  - 
TY  - CHAP
A1  - Knobloch, V.
A1  - Kowalski, Julia
A1  - Bösiger, P.
A1  - Kozerke, S.
T1  - Probabilistic Streamline Estimation from Accelerated Fourier Velocity Encoded Measurements
T2  - Proceedings of the 19th ISMRM International Society for Magnetic Resonance in Medicine
Y1  - 2011
N1  - ISMRM 19th Annual Meeting & Exhibition in Montréal, Québec, Canada
SP  - 1215
EP  - 1215
ER  - 
TY  - CHAP
A1  - Klocke, Martina
T1  - Projektmodul im Bachelorstudiengang Maschinenbau bzw. Mechatronik
T2  - Hochschulrektorenkonferenz HRK nexus : Kompetenzorientiertes Prüfen in den Ingenieurwissenschaften und in der Informatik. Gemeinsame Tagung von 4ING und nexus. 29.3.2011 Bremen
Y1  - 2011
SP  - 1
EP  - 25
ER  - 
TY  - CHAP
A1  - Kirsch, Ansgar
A1  - Mattle, Bruno
T1  - Einflussfaktoren auf die Erddruckverteilung bei eingeschütteten Tunneln
T2  - Baustatik Baupraxis : BB / Fachtagung Baustatik Baupraxis. Lehrstühle und Institute für Statik, TH Aachen, TU Berlin, U Bochum [u.a.]
Y1  - 2011
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Kirchhof, Michael
A1  - Kraft, Bodo
T1  - Dogmatisches „Entweder agil oder klassisch" im Projektmanagement hat ausgedient - die richtige Mischung macht's
T2  - Projekt-Sternstunden : strahlende Erfolge durch Kompetenz
Y1  - 2011
SN  - 978-3-924841-60-7
N1  - PM-Forum <28, 2011, Nürnberg> ; 
PM-Forum 2011, 28. Internationales Deutsches Projektmanagement-Forum ; Nürnberg, 25. - 26.10.2011 ; Tagungsband
SP  - 414
EP  - 425
PB  - GPM
CY  - Nürnberg
ER  -