@inproceedings{OhndorfDachwaldSeboldtetal.2011, author = {Ohndorf, Andreas and Dachwald, Bernd and Seboldt, Wolfgang and Schartner, Karl-Heinz}, title = {Flight times to the heliopause using a combination of solar and radioisotope electric propulsion}, series = {32nd International Electric Propulsion Conference}, booktitle = {32nd International Electric Propulsion Conference}, pages = {1 -- 12}, year = {2011}, abstract = {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".}, language = {en} } @inproceedings{DoeringKuhnhenneFeldmann2011, author = {D{\"o}ring, Bernd and Kuhnhenne, Markus and Feldmann, Markus}, title = {Floor systems - key elements for sustainable multi-storey buildings}, series = {SB11 Helsinki World Sustainable Building Conference : 18. - 21.10.2011}, booktitle = {SB11 Helsinki World Sustainable Building Conference : 18. - 21.10.2011}, organization = {World Sustainable Building Conference <2011, Helsinki>}, pages = {1 -- 6}, year = {2011}, language = {en} } @inproceedings{OlaruKowalskiSethietal.2011, author = {Olaru, Alexandra Maria and Kowalski, Julia and Sethi, Vaishali and Bl{\"u}mich, Bernhard}, title = {Fluid Transport in Porous Media probed by Relaxation-Exchange NMR}, series = {2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec.}, booktitle = {2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec.}, year = {2011}, language = {en} } @article{MausHoefkenSchuba2011, author = {Maus, Stefan and H{\"o}fken, Hans-Wilhelm and Schuba, Marko}, title = {Forensic Analysis of Geodata in Android Smartphones}, pages = {1 -- 11}, year = {2011}, language = {en} } @techreport{OPUS4-303, title = {Forschungsbericht 2011}, organization = {FH Aachen, University of Applied Sciences}, year = {2011}, abstract = {Forschungsbericht / Themenheft : Life Sciences 4 Grußwort Prorektorin Prof. Dr. rer. nat. Christiane Vaeßen 6 Highlightprojekte 9 Nano- und Biotechnologien, Medizintechnik, Bioengineering 10 Institut f{\"u}r Nano- und Biotechnologien 11 Multifunktionaler Bio-Sensorchip f{\"u}r biodegradierbare Biopolymere 12 Intelligente Logik-Gatter mit stimuli-responsiven Hydrogelen 13 Entwicklung eines Multisensorsystems in Siliziumtechnik zur Berurteilung der G{\"a}rbiologie eines Anaerobfermenters in der Fl{\"u}ssigphase 14 Optimierung des Betriebs eines Biogasfermenters mithilfe eines Feldeffekt-Biosensors auf der Basis eines lichtadressierbaren potenziometrischen Sensors (Bio-LAPS) 15 Modulares Sensorsystem f{\"u}r die Zellkultur-Prozessentwicklung (Cellsens) 16 "Nano-inspirierte Oberfl{\"a}chen f{\"u}r die Entwicklung spezifischer Feldeffekt-Biosensoren 17 Multimodale Sensoren f{\"u}r die Umweltanalytik in fl{\"u}ssigen Medien im industriellen Umfeld 18 Gassensorik f{\"u}r den qualitativen und quantitativen Nachweis von H2O2 f{\"u}r aseptische Verpackungen im Bereich der Lebensmitteltechnologie 19 „Entwicklung von therapeutischen Impfstoffen gegen Krebs" 20 Institut f{\"u}r Bioengineering 22 Zellbiophysik : Personalisierte Medizin - Wirkstoffanpassung mit CardiaKytos 23 Labor f{\"u}r Biomaterialien : Biokompatibilit{\"a}t von Werkstoffen bludruchstr{\"o}mter Medizinger{\"a}te 24 Labor f{\"u}r Zell- und Mikrobiologie : Zusammenschluss von Molekularer Biophysik und Mikrobiologie 25 Labor f{\"u}r Biomechanik : Virtuelle Realit{\"a}t: Gegl{\"a}ttete Finite-Elemente -Methode zur Simulation in der Medizintechnik 26Labor f{\"u}r Biomechanik : Optimierung chirurgischer Klammernahtger{\"a}te zur operativen Darm-Anastomose 27 Labor f{\"u}r Medizinische \& Molekulare Biologie : CARA - Entwicklung einer nichtinvasiven Sonde f{\"u}r den klinischen Einsatz zur Prognose des Risikos einer Fr{\"u}hgeburt bei Schwangeren 30 Kompetenzplattform Bioengineering 31 IceMole eine sich autonom ins Eis grabende Sonde f{\"u}r die Polarforschung und die Suche nach Leben im Sonnensystem 33 Nahinfrarotspektroskopie zur {\"U}berwachung von Biogasanlagen 34 Schlingensysteme zur Behandlung von Belasungsinkontinenz 36 Weitere Forschungsaktivit{\"a}ten Telemedizin : Produktstudien 39 Angewandte Polymerchemie, Nuklearchemie, Umweltbiotechnologie 40 Institut f{\"u}r angewandte Polymerchemie (IAP) : "Intelligente Hydrogele" als kontaktfrei steuerbare Pharmadepots zur gezielten Tumorbek{\"a}mpfung 43 Das Labor f{\"u}r Nuklearchemie 45 Institut NOWUM -Energy 46 EnergieEffizienz-Netzwerk : Eine Chance f{\"u}r die Life-Science-Industrie 48 MiProBa : Ein Projekt zum Thema Biogas 49 Weitere Forschungsaktivit{\"a}ten : IMMOTHERM 50 Systematische Untersuchung des Biogas-Prozesses : Beteiligte Mikroorganismen und deren Stoffwechsel 51 Der pflanzliche Aromatenstoffwechsel : Aller guten Dinge sind drei? Aromatenstoffwechsel 51 54 Impressum}, subject = {Forschungsbericht}, language = {de} } @incollection{Helmig2011, author = {Helmig, Ilka}, title = {Friendship : editorial illustration}, series = {Papercraft 2 : design and art with paper}, booktitle = {Papercraft 2 : design and art with paper}, publisher = {Gestalten Verlag}, address = {Berlin}, isbn = {978-3-89955-333-8}, pages = {237}, year = {2011}, subject = {Papierkunst}, language = {en} } @misc{FrauenrathDieringerPateletal.2011, author = {Frauenrath, Tobias and Dieringer, Matthias and Patel, Nishant and Zerdem, Celal and Hentschel, Jan and Renz, Wolfgang and Niendorf, Thoralf}, title = {From Artifact to Merit: Cardiac Gated MRI at 7T \& 3T using Magneto-Hydrodynamic Effects for Synchronization}, series = {2011 ISMRM Annual Meeting Proceedings}, journal = {2011 ISMRM Annual Meeting Proceedings}, issn = {1545-4428}, year = {2011}, abstract = {ECG is corrupted by magneto-hydrodynamic effects at higher magnetic field strength. Artifacts in the ECG trace and severe T-wave elevation might be mis-interpreted as R-waves. MHD being inherently sensitive to blood flow and blood velocity provides an alternative approach for cardiac gating, even in peripheral target areas far away from the commonly used upper torso positions of ECG electrodes. This feature would be very beneficial to address traveling time induced motion artifacts and trigger latency related issues raised by ECG-gated peripheral MR angiography. For all those reasons, this work proposes the use of MHD-trigger for cardiac gated MR.}, language = {en} } @incollection{GoldbachHochrein2011, author = {Goldbach, Daniel and Hochrein, Ulrich}, title = {Functional Safety Management und Analysemethoden in der Entwicklung eines sicherheitskritischen Systems im Automobil}, series = {Diagnose in mechatronischen Fahrzeugsystemen IV : neue Verfahren f{\"u}r Test, Pr{\"u}fung und Diagnose von E/E-Systemen im Kfz : [anl{\"a}sslich der 5. Tagung "Diagnose in Mechatronischen Fahrzeugsystemen"]}, booktitle = {Diagnose in mechatronischen Fahrzeugsystemen IV : neue Verfahren f{\"u}r Test, Pr{\"u}fung und Diagnose von E/E-Systemen im Kfz : [anl{\"a}sslich der 5. Tagung "Diagnose in Mechatronischen Fahrzeugsystemen"]}, publisher = {Expert Verlag}, address = {Renningen}, isbn = {978-3-8169-3068-6}, pages = {175 -- 194}, year = {2011}, language = {de} } @article{PoghossianWagnerSchoening2011, author = {Poghossian, Arshak and Wagner, Holger and Sch{\"o}ning, Michael Josef}, title = {Functional testing and characterisation of (bio-)chemical sensors on wafer level}, series = {Sensors and Actuators B: Chemical. 154 (2011), H. 2}, journal = {Sensors and Actuators B: Chemical. 154 (2011), H. 2}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {1873-3077}, pages = {169 -- 173}, year = {2011}, language = {en} } @inproceedings{LaoBuehrigPolaczekRoeth2011, author = {Lao, B. and B{\"u}hrig-Polaczek, Andreas and R{\"o}th, Thilo}, title = {Funktionsintegrierte Leichtbaustrukturen in gussintensiver Metall-Hybridbauweise}, series = {Verbundwerkstoffe und Werkstoffverbunde: Tagungsband zum 18. Symposium ; 30.03.2011 bis 01.04.2011, Chemnitz}, booktitle = {Verbundwerkstoffe und Werkstoffverbunde: Tagungsband zum 18. Symposium ; 30.03.2011 bis 01.04.2011, Chemnitz}, editor = {Wielage, Bernhard}, publisher = {Eigenverlag}, address = {Chemnitz}, isbn = {978-3-00-033801-4}, pages = {413 -- 421}, year = {2011}, language = {de} }