TY  - JOUR
A1  - Dittus, H.
A1  - Turyshev, S. G.
A1  - Dachwald, Bernd
A1  - Blome, Hans-Joachim
T1  - A Mission to Explore the Pioneer Anomaly
JF  - Proceedings of the 39th ESLAB Symposium "Trends in Space Science and Cosmic Vision 2020" : 19 - 21 April 2005, ESTEC, Noordwijk, the Netherlands / European Space Agency. [Comp. by: F. Favata ...] . - (ESA SP ; 588)
Y1  - 2005
SN  - 9290928999
N1  - ISBN der CD-ROM-Ausg.: 9290928999 ; Symposium Trends in Space Science and Cosmic Vision 2020 <2005, Noordwijk> ; ESLAB symposium <39,2005, Noordwijk> ; European Space Laboratory ; Report Number: LA-UR-05-4907 ; The Pioneer Explorer Collaboration
SP  - 3
EP  - 10
PB  - ESA Publ. Div.
CY  - Noordwijk
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
A1  - Turyshev, Slava G.
A1  - Dittus, H.
A1  - Shao, M. [u.a.]
T1  - Fundamental Physics with the Laser Astrometric Test Of Relativity / S.G. Turyshev ;  H. Dittus ; M. Shao ... B.Dachwald ...
JF  - Proceedings of the 39th ESLAB Symposium "Trends in Space Science and Cosmic Vision 2020" : 19 - 21 April 2005, ESTEC, Noordwijk, the Netherlands / European Space Agency. [Comp. by: F. Favata ...] . - (ESA SP ; 588)
Y1  - 2005
SN  - 9290928999
N1  - ISBN der CD-ROM-Ausg.: 9290928999 ; Symposium Trends in Space Science and Cosmic Vision 2020 <2005, Noordwijk> ; ESLAB symposium <39, 2005, Noordwijk> ; European Space Laboratory
SP  - 8
EP  - 11
PB  - ESA Publ. Div.
CY  - Noordwijk
ER  - 
TY  - JOUR
A1  - Kaminsky, Randolph
A1  - Simons, Antoine
A1  - Gatzweiler, Karl-Heinz
A1  - Weber, Hans-Joachim
T1  - Flow visualization by means of PIV of an artificial aortic heart valve fixed into a mock aorta
JF  - Acta Mechanica Slovaka 2-A. 9 (2005)
Y1  - 2005
SP  - 343
EP  - 348
ER  - 
TY  - JOUR
A1  - Kaminsky, Randolph
A1  - Weber, Hans-Joachim
A1  - Simons, Antoine
A1  - Kallweit, Stephan
A1  - Kramm, K.
A1  - Verdonck, Pascale
T1  - Comparison of the flow downstream two prototypes of a new monoleaflet artificial aortic heart valve by means of PIV visualization
JF  - Computer methods in biomechanics and biomedical engineering. 8 (2005), H. 4, Suppl. 1
Y1  - 2005
SN  - 1476-8259
SP  - 159
EP  - 160
ER  - 
TY  - BOOK
A1  - Weber, Hans-Joachim
A1  - Kaminsky, Radoslav
A1  - Kallweit, Stephan
A1  - Simons, Antoine
T1  - PIV measurements with high temporal resolution behind artificial heart valves
Y1  - 2005
N1  - International Symposium on Particle Image Velocimetry <6, 2005, Pasadena, Calif.>
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
T1  - Design methods of smoke and heat exhaust systems in construction works
JF  - V Mie&#796;dzynarodowa Konferencja Bezpiecze&#324;stwo Po&#380;arowe Budowli, Warszawa-Miedzeszyn, 14 - 16 listopada 2005 r. = : Vth International Conference Fire Safety of Buildings / ITB ... [Ed. Miros&#322;aw Kosiorek]
Y1  - 2005
SN  - 83-7413-810-6
N1  - Mie&#796;dzynarodowa Konferencja Bezpiecze&#324;stwo Po&#380;arowe Budowli <5, 2005, Warszawa> ; International Conference Fire Safety of Buildings <5, 2005, Warszawa-Miedzeszyn>
SP  - 127
EP  - 140
PB  - ITB
CY  - Warszawa
ER  - 
TY  - JOUR
A1  - Gerhardt, Hans Joachim
A1  - Konrath, B.
A1  - Lieb, R.-D.
T1  - Das Drallrohr
JF  - HLH : Lüftung, Klima, Heizung, Sanitär, Gebäudetechnik. 56 (2005), H. 11
Y1  - 2005
SN  - 1436-5103
N1  - 2. ISSN: 0017-9906 ; 3. ISSN: 1434-422X ; Zeitschrift unter 13 Z 739 in der Bibliothek
SP  - 91
EP  - 95
ER  - 
TY  - JOUR
A1  - Naujokat, Anke
T1  - Bocholt: Cotton Mills for the Continent
JF  - Bauwelt. 96  (2005), H. 36
Y1  - 2005
SN  - 0931-6590
SP  - 3
ER  - 
TY  - JOUR
A1  - Temiz Artmann, Aysegül
A1  - Saklamaz, Ali
A1  - Comlekci, Abdurrahman
A1  - Caliskan, Sezer
T1  - The beneficial effects of lipid-lowering drugs beyond lipid-lowering effects: A comparative study with pravastatin, atorvastatin, and fenofibrate in patients with type IIa and type IIb hyperlipidemia / Saklamaz, Ali ; Comlekci, Abdurrahman ; Temiz, Aysegu
JF  - Metabolism. 54 (2005), H. 5
Y1  - 2005
SN  - 0026-0495
SP  - 677
EP  - 681
ER  - 
TY  - JOUR
A1  - Prume, Klaus
A1  - Peter, F.
A1  - Rüdiger, A.
A1  - Dittmann, R.
T1  - Analysis of shape effects on the piezoresponse in ferroelectric nanograins with and without adsorbates / Peter, F. ; Rüdiger, A. ; Dittmann, R. ; Waser, R. ; Szot, K. ; Reichenberg, B. ; Prume, K. ;
JF  - Applied Physics Letters  . 87 (2005), H. 8
Y1  - 2005
SN  - 0003-6951
SP  - 082901
EP  - 082901-3
ER  - 
TY  - JOUR
A1  - Prume, Klaus
A1  - Meyer, René
A1  - Waser, Rainer
A1  - Schmitz, Torsten
T1  - Dynamic leakage current compensation in ferroelectric thin-film capacitor structures / Meyer, René ; Waser, Rainer ; Prume, Klaus ; Schmitz, Torsten ; Tiedke, Stephan
JF  - Applied Physics Letters . 86 (2005), H. 14
Y1  - 2005
SN  - 0003-6951
SP  - 142907-1
EP  - 142907-3
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Zambou, N.
A1  - Abel, D.
T1  - Longitudinal Control of Following Vehicles within Platoon : A Model-Based Predictive Approach / Zambou, N. ; Enning, M. ; Abel, D.
JF  - Advances in automotive control 2004 : a proceedings volume from the IFAC symposium, Salerno, Italy, 19 - 23 April 2004 / ed. C. Pianese
Y1  - 2005
SN  - 0080442501
N1  - International Federation of Automatic Control ; Symposium on Advances in Automotive Control ; (4, 2004, Salerno)
SP  - 733
EP  - 738
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - BOOK
A1  - Grotendorst, Johannes
A1  - Scott, Tony C.
A1  - Mann, Robert
A1  - Martinez Il, Roberto E.
T1  - General Relativity and Quantum Mechanics: Towards a Generalization of the Lambert W Function / Scott, Tony C. ; Mann, Robert ; Martinez Il, Roberto E.  ; Grotendorst, Johannes
Y1  - 2005
N1  - Technical Report FZJ-ZAM-IB-2005-10
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, R.
A1  - Rossi, M.
A1  - Morbiducci, U.
T1  - Time resolved PIV technique for high temporal resolution measurements of prosthetic heart valves fluid dynamics / Kaminsky, R. ; Rossi, M. ; Morbiducci, U. ; Scalise, L. ; Catellini, P. ; Kallweit, S. ; Verdonck, P. ; Grigioni, M.
JF  - The International Journal of Artificial Organs. 28 (2005), H. 9
Y1  - 2005
SN  - 1724-6040
N1  - Abstracts: XXXII Annual ESAO Congress, 5-8 October 2005, Bologna - Italy
SP  - 946
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, R.
A1  - Rossi, M.
A1  - Morbiducci, U.
T1  - 2D PIV Study of the flow downstream : Two prototypes of a ney monoleaflet artificial aortic heart valve prosthesis / Kaminsky, R. ; Kramm, K. ; Weber, H. J. ; Simons, A. P. ; Kallweit, S. ; Verdonck, P. R.
JF  - The International Journal of Artificial Organs. 28 (2005), H. 9
Y1  - 2005
SN  - 1724-6040
N1  - Abstracts: XXXII Annual ESAO Congress, 5-8 October 2005, Bologna - Italy
SP  - 921
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, R.
A1  - Rossi, M.
A1  - Morbiducci, U.
T1  - 3D PIV measurements of prosthetic heart valve dynamics / Kaminsky, R. ; Rossi, M. ; Morbiducci, U. ; Scalise, L. ; Castellini, P. ; Kallweit, S. ; Verdonck, P. ; Grigioni, M.
JF  - The International Journal of Artificial Organs. 28 (2005), H. 9
Y1  - 2005
SN  - 1724-6040
N1  - Abstracts: XXXII Annual ESAO Congress, 5-8 October 2005, Bologna - Italy
SP  - 868
ER  - 
TY  - JOUR
A1  - Hillgärtner, Michael
A1  - Stonies, R.
A1  - Peier, D.
A1  - Voges, E.
T1  - Design of Low Cost Antennas for Reverberation Chambers
JF  - Proceedings of the 16th International Zurich Symposium on Electromagnetic Compatibility : [EMC Week 2005, Zurich, Switzerland, February 13 - 18 ; technical exhibition on EMC and RF/microwave Measurements and Instrumentation (February 15 - 17)] / [Laboratory for Electromagnetic Fields and Microwave Electronics, Swiss Federal Institute of Technology Zurich]
Y1  - 2005
SN  - 3-9521199-9-7
N1  - Nebent.: EMC Zurich 2005 Symposium proceedings. - International Zurich Symposium and Technical Exhibition on Electromagnetic Compatibility <16, 2005, Zürich>  Institut für Feldtheorie und Höchstfrequenztechnik <Zürich>
PB  - ETH-Zentrum-IFH
CY  - Zürich
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Kaminsky, R.
A1  - Rossi, M.
A1  - Scalise, L.
T1  - PIV Measurements with high temporal Resolution behind Artificial  Heart Valves  / Kaminsky, R. ; Rossi, M. ; Scalise, L. ; Kallweit, S. ; Verdonck, P.
JF  - Proceedings of the 6th International Symposium on Particle Image Velocimetry
Y1  - 2005
N1  - link zum abstract
PB  - Caltech
CY  - Pasadena, CA
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Jacobs, Stefan
A1  - Lakemeyer, Gerhard
T1  - Controlling Unreal Tournament 2004 Bots with the logic-based action language Golog / Jacobs, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard
JF  - Proceedings of the First AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment (AIIDE).
Y1  - 2005
SP  - 151
EP  - 152
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Dylla, Frank
A1  - Lakemeyer, Gerhard
A1  - Murray, Jan
T1  - Towards a League-Independent Qualitative Soccer Theory for RoboCup  / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard ; Murray, Jan ; Obst, Oliver ; Röfer, Thomas ; Stolzenburg, Frieder ; Visser, Ubbo
JF  - RoboCup 2004: Robot Soccer World Cup VIII / Daniele Nardi ... (ed.).
Y1  - 2005
SN  - 978-3-540-25046-8
N1  - Lecture Notes in Computer Science ; 3276
SP  - 611
EP  - 618
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Jacobs, Stefan
A1  - Lakemeyer, Gerhard
T1  - Unreal Golog Bots / Jacobs, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard
JF  - IJCAI-05 Workshop on Reasoning, Representation, and Learning in Computer Games
Y1  - 2005
SP  - 31
EP  - 36
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Fritz, Christian
A1  - Lakemeyer, Gerhard
T1  - Using Golog for Deliberation and Team Coordination in Robotic Soccer / Ferrein, Alexander ; Fritz, Christian ; Lakemeyer, Gerhard
JF  - Künstliche Intelligenz : KI. 19 (2005), H. 1
Y1  - 2005
SN  - 0933-1875
SP  - 24
EP  - 30
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
T1  - Specifying Soccer Moves with Golog
JF  - Book of abstracts : Cologne, 15 - 17 September 2004 / 1st International Working Conference IT and Sport & 5th conference DVS-Section Computer Science in Sport
Y1  - 2005
SN  - 3-00-014576-1
N1  - International Working Conference IT and Sport 1, 2004, Köln ; Deutsche Vereinigung für Sportwissenschaft
SP  - 161
EP  - 165
PB  - German Sport Univ.
CY  - Köln
ER  - 
TY  - JOUR
A1  - Öhlschläger, Peter
A1  - Corvinus, Florian M.
A1  - Orth, Carina
A1  - Moriggl, Richard
T1  - Persistent STAT3 activation in colon cancer is associated with enhanced cell proliferation and tumor growth / Corvinus, Florian, Moriggl, Richard ; Tsareva, Svetlana A. ; Wagner, Stefan ; Pfitzner, Edith B. ; Baus, Daniela ; Kaufmann, Roland : Huber, Luka
JF  - Neoplasia. 7 (2005), H. 6
Y1  - 2005
SN  - 1476-5586
SP  - 545
EP  - 555
ER  - 
TY  - JOUR
A1  - Öhlschläger, Peter
A1  - Steinberg, Thorsten
A1  - Sehr, Peter
A1  - Osen, Wolfram
T1  - Modification of HPV 16 E7 genes: correlation between the level of protein expression and CTL response after immunization of C57BL/6 mice / Steinberg, Thorsten ; Öhlschläger, Peter ; Sehr, Peter ; Osen, Wolfram ; Gissmann, Lutz
JF  - Vaccine. 23 (2005), H. 9
Y1  - 2005
SN  - 0264-410X
SP  - 1149
EP  - 1157
ER  - 
TY  - JOUR
A1  - Havermann, Marc
T1  - Effects of the shock tube open-end shape on vortex loops released from it / Kainuma, M. ; Havermann, M. ; Sun, M. ; Takayama, K.
JF  - Shock Waves : Proceedings of the 24th International Symposium on Shock Waves Beijing, China July 11-16, 2004 / edited by Z. Jiang
Y1  - 2005
SN  - 978-3-540-22497-6
SP  - 505
EP  - 510
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Havermann, Marc
A1  - Seiler, F.
A1  - Boller, F.
A1  - Mangold, P.
T1  - Operation of the ISL transonic shock tube in a high subsonic flow regime / Seiler, F. ; Havermann, M. ; Boller, F. ; Mangold, P. ; Takayama K.
JF  - Shock Waves : Proceedings of the 24th International Symposium on Shock Waves Beijing, China July 11-16, 2004 / edited by Z. Jiang
Y1  - 2005
SN  - 978-3-540-22497-6
SP  - 307
EP  - 312
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Havermann, Marc
A1  - Ende, H.
A1  - Seiler, F.
A1  - Schwenzer, M.
T1  - Shock tunnel measurement of the interaction amplification factor for a hot gas side jet in a supersonic cross flow / Havermann, M. ; Ende, H. ; Seiler, F. ; Schwenzer, M.
JF  - Shock Waves : Proceedings of the 24th International Symposium on Shock Waves Beijing, China July 11-16, 2004 / edited by Z. Jiang
Y1  - 2005
SN  - 978-3-540-22497-6
SP  - 113
EP  - 118
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Havermann, Marc
A1  - Kainuma, M.
A1  - Takayama, K.
T1  - Influence of Physical and Geometrical Parameters on Vortex Rings Generated by a Shock Tube / Havermann, M. ; Kainuma, M. ; Takayama, K.
JF  - Non-lethal options enhancing security and stability : 3rd European Symposium on Non-Lethal Weapons, May 10 - 12, 2005, Ettlingen, Germany / ICT, Fraunhofer-Institut Chemische Technologie; European Working Group Non-Lethal Weapons
Y1  - 2005
N1  - European Symposium on Non-Lethal Weapons ; (3 ; 2005.5.10-12 ; Ettlingen); V 24
PB  - ICT
CY  - Pfinztal
ER  - 
TY  - JOUR
A1  - Havermann, Marc
A1  - Moeglin, J.-P.
T1  - ISL's Research on Systems with Controlled Effects for Non-Lethal Applications / Moeglin, J.-P. ; Havermann, M. et al.
JF  - Non-lethal options enhancing security and stability : 3rd European Symposium on Non-Lethal Weapons, May 10 - 12, 2005, Ettlingen, Germany / ICT, Fraunhofer-Institut Chemische Technologie; European Working Group Non-Lethal Weapons
Y1  - 2005
N1  - European Symposium on Non-Lethal Weapons ; (3 ; 2005.5.10-12 ; Ettlingen); P 35
PB  - ICT
CY  - Pfinztal
ER  - 
TY  - BOOK
A1  - Havermann, Marc
T1  - Development of a free flight force measuring (FFM) technique at the ISL shock tube laboratory : 25th International Symposium on Shock Waves, ISSW25, Bangalore, India, July 17 - 22, 2005 / Institut Franco-Allemand de Recherches de Saint-Louis. Seiler, F. ; Mathieu, G. ;  George,  A. ; Srulijes, J. ; Sauerwein, B. ; Havermann, M.
Y1  - 2005
N1  - Publication / Institut Franco-Allemand de Recherches de Saint-Louis ; 620
PB  - ISL
CY  - Saint-Louis
ER  - 
TY  - JOUR
A1  - Kotliar, Konstantin
A1  - Koshitz, I. N.
A1  - Svetlowa, O. V.
A1  - Makarov, F. N.
T1  - Biomechanical analysis of traditional and contemporary conceptions on pathogenesis of the primary open angle glaucoma / Koshitz, I. N. ; Svetlova, O. V. ; Kotliar, K. E. ; Makarov, F. N. ;  Smolnikov, B. A.
JF  - Glaukoma (2005)
Y1  - 2005
N1  - Original in Russisch
SP  - 41
EP  - 63
PB  - -
ER  - 
TY  - JOUR
A1  - Digel, Ilya
A1  - Temiz Artmann, Aysegül
A1  - Nishikawa, K.
A1  - Cook, M.
T1  - Bactericidal effects of plasma-generated cluster ions
JF  - Medical and Biological Engineering and Computing. 43 (2005), H. 6
Y1  - 2005
SN  - 1741-0444
SP  - 800
EP  - 807
ER  - 
TY  - JOUR
A1  - Maggakis-Kelemen, Christina
A1  - Digel, Ilya
A1  - Artmann, Gerhard
T1  - Polystyrene sulfonate/Polyallylamine hydrochloride microcapsules as potential artificial red blood cells - improvement of capsule flexibility
JF  - Biomedizinische Technik. 50 (2005), H. Erg.-Bd. 1
Y1  - 2005
SP  - 324
EP  - 326
ER  - 
TY  - JOUR
A1  - Khodaverdi, M.
A1  - Chatziioannou, A. F.
A1  - Weber, S.
A1  - Ziemons, Karl
A1  - Halling, H.
A1  - Pietrzyk, U.
T1  - Investigation of different MicroCT scanner configurations by GEANT4 simulations
JF  - IEEE Transactions on Nuclear Science
N2  - This study has been performed to design the combination of the new ClearPET (ClearPET is a trademark of the Crystal Clear Collaboration), a small animal positron emission tomography (PET) system, with a micro-computed tomography (microCT) scanner. The properties of different microCT systems have been determined by simulations based on GEANT4. We will demonstrate the influence of the detector material and the X-ray spectrum on the obtained contrast. Four different detector materials (selenium, cadmium zinc telluride, cesium iodide and gadolinium oxysulfide) and two X-ray spectra (a molybdenum and a tungsten source) have been considered. The spectra have also been modified by aluminum filters of varying thickness. The contrast between different tissue types (water, air, brain, bone and fat) has been simulated by using a suitable phantom. The results indicate the possibility to improve the image contrast in microCT by an optimized combination of the X-ray source and detector material.
Y1  - 2005
SN  - 0018-9499
VL  - 52
IS  - 1
SP  - 188
EP  - 192
ER  - 
TY  - JOUR
A1  - Streun, M.
A1  - Christ, D.
A1  - Hellendung, A.
A1  - Larue, H.
A1  - Ziemons, Karl
A1  - Halling, H.
T1  - Effects of crosstalk and gain nonuniformity using multichannel PMTs in the Clearpet® scanner
JF  - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
N2  - The ClearPET® scanners developed by the Crystal Clear Collaboration use multichannel PMTs as photodetectors with scintillator pixels coupled individually to each channel. In order to localize an event each channel anode is connected to a comparator that triggers when the anode signal exceeds a common predefined threshold. Two major difficulties here are crosstalk of light and the gain nonuniformity of the PMT channels. Crosstalk can generate false triggering in channels adjacent to the actual event. On the one hand this can be suppressed by sufficiently increasing the threshold, but on the other hand a threshold too high can already prevent valid events on the lower gain channels from being detected. Finally, both effects restrict the dynamic range of pulse heights that can be processed. The requirements to the dynamic range are not low as the ClearPET® scanners detect the depth of interaction by phoswich pixels consisting of LSO and Lu0.7Y0.3AP, two scintillators with different light yields. We will present a model to estimate the achievable dynamic range and show solutions to increase it.
Y1  - 2005
SN  - 0168-9002
N1  - Proceedings of the 7th International Conference on Inorganic Scintillators and their Use in Scientific and Industrial Applications
VL  - 537
IS  - 1-2
SP  - 402
EP  - 405
ER  - 
TY  - JOUR
A1  - Ziemons, Karl
A1  - Auffray, E.
A1  - Barbier, R.
A1  - Brandenburg, G.
A1  - Bruyndonckx, P.
T1  - The ClearPET™ project: Development of a 2nd generation high-performance small animal PET scanner
JF  - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
N2  - Second generation high-performance PET scanners, called ClearPET™1, have been developed by working groups of the Crystal Clear Collaboration (CCC). High sensitivity and high spatial resolution for the ClearPET camera is achieved by using a phoswich arrangement combining two different types of lutetium-based scintillator materials: LSO from CTI and LuYAP:Ce from the CCC (ISTC project). In a first ClearPET prototype, phoswich arrangements of 8×8 crystals of 2×2×10 mm3 are coupled to multi-channel photomultiplier tubes (Hamamatsu R7600). A unit of four PMTs arranged in-line represents one of 20 sectors of the ring design. The opening diameter of the ring is 120 mm, the axial detector length is 110 mm.The PMT pulses are digitized by free-running ADCs and digital data processing determines the gamma energy, the phoswich layer and even the exact pulse starting time, which is subsequently used for coincidence detection. The gantry allows rotation of the detector modules around the field of view.

Preliminary data shows a correct identification of the crystal layer about (98±1)%. Typically the energy resolution is (23.3±0.5)% for the luyap layer and (15.4±0.4)% for the lso layer. early studies showed the timing resolution of 2 ns FWHM and 4.8 ns FWTM. the intrinsic spatial resolution ranges from 1.37 mm to 1.61 mm full-width of half-maximum (FWHM) with a mean of 1.48 mm FWHM. further improvements in image and energy resolution are expected when the system geometry is fully modeled.
Y1  - 2005
SN  - 0168-9002
N1  - Proceedings of the 7th International Conference on Inorganic Scintillators and their Use in Scientific and Industrial Applications
VL  - 537
IS  - 1-2
SP  - 307
EP  - 311
ER  - 
TY  - CHAP
A1  - Braun, Carsten
A1  - Boucke, Alexander
A1  - Ballmann, Josef
T1  - Numerical prediction of the wing deformation of a high speed transport aircraft type wind tunnel model by direct aeroelastic simulation
T2  - Conference proceedings : CEAS/AIAA/DGLR International Forum on Aeroelasticity and Structural Dynamics IFASD 2005 : München, June 28 - July 1, 2005. DGLR-Bericht. 2005,04
Y1  - 2005
SN  - 3-932182-43-X
PB  - DGLR
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Braun, Carsten
A1  - Boucke, Alexander
A1  - Ballmann, Josef
T1  - Numerical study of the influence of dynamic pressure and deflected ailerons on the deformation of a high speed wing model
T2  - High performance computing in science and engineering '04. Transactions of the High Performance Computing Center Stuttgart (HLRS) 2004 /  Eds.: Egon Krause ...
Y1  - 2005
SN  - 3-540-22943-4
SP  - 225
EP  - 236
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Kolkmann, Annette
A1  - Gries, Thomas
A1  - Schleser, Markus
A1  - Dilthey, Ulrich
T1  - Innovative yarn structures and coatings for textile reinforced concrete
T2  - All lectures / Techtextil Symposium : 6. - 9. 6.2005, Frankfurt am Main
Y1  - 2005
CY  - Frankfurt a.M.
ER  - 
TY  - JOUR
A1  - Polen, T.
A1  - Krämer, Marco
A1  - Bongaerts, Johannes
A1  - Wubbolts, Marcel
A1  - Wendisch, V. F.
T1  - The global gene expression response of Escherichia coli to L-phenylalanine
JF  - Journal of biotechnology
Y1  - 2005
SN  - 1873-4863 (E-Journal); 0168-1656 (Print)
VL  - Vol. 115
IS  - Iss. 3
SP  - 221
EP  - 237
ER  - 
TY  - JOUR
A1  - Hellwig, Angelika
A1  - Rautenbach, Dieter
A1  - Volkmann, Lutz
T1  - Cuts leaving components of given minimum order
JF  - Discrete mathematics
Y1  - 2005
SN  - 1872-681X (E-Journal); 0012-365X (Print)
VL  - Vol. 292
IS  - Iss. 1-3
SP  - 55
EP  - 65
ER  - 
TY  - JOUR
A1  - Hellwig, Angelika
A1  - Volkmann, Lutz
T1  - Neighborhood conditions for graphs and digraphs to be maximally edge-connected
JF  - Australasian journal of combinatorics
Y1  - 2005
SN  - 10344942 ; 22023518
VL  - Vol. 33
SP  - 265
EP  - 277
ER  - 
TY  - JOUR
A1  - Hellwig, Angelika
A1  - Volkmann, Lutz
T1  - Sufficient conditions for graphs to be λ′-optimal, super-edge-connected, and maximally edge-connected
JF  - Journal of graph theory
Y1  - 2005
SN  - 03649024
VL  - Vol. 48
IS  - Iss. 3
SP  - 228
EP  - 246
ER  - 
TY  - JOUR
A1  - Xu, Jung-Ming
A1  - Lü, Min
A1  - Ma, Meijie
A1  - Hellwig, Angelika
T1  - Super connectivity of line graphs
JF  - Information processing letters
Y1  - 2005
SN  - 1872-6119 (E-Journal); 0020-0190 (Print)
VL  - Vol. 94
IS  - Iss. 4
SP  - 191
EP  - 195
ER  - 
TY  - CHAP
A1  - Augenstein, Eckardt
A1  - Herbergs, S.
A1  - Kuperjans, Isabel
A1  - Lucas, K.
ED  - Kjelstrup, Signe
T1  - Simulation of industrial energy supply systems with integrated cost optimization
T2  - Proceedings of ECOS 2005, the 18th International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems : Trondheim, Norway, June 20 - 22, 2005. - Vol. 2
Y1  - 2005
SN  - 82-519-2041-8
N1  - CD-ROM-Ausg. u.d.T.: Shaping our future energy systems
SP  - 627
EP  - 634
PB  - Tapir Academic Press
CY  - Trondheim
ER  - 
TY  - JOUR
A1  - Siegert, Petra
A1  - McLeish, Michael J.
A1  - Baumann, Martin
A1  - Iding, Hans
A1  - Kneen, Malea M.
A1  - Kenyon, George L.
A1  - Pohl, Martina
T1  - Exchanging the substrate specificities of pyruvate decarboxylase from Zymomonas mobilis and benzoylformate decarboxylase from Pseudomonas putida
JF  - Protein engineering, design, and selection : peds
Y1  - 2005
SN  - 1460-213X (E-Journal); 1741-0134 (E-Journal); 0269-2139 (Print); 1741-0126 (Print)
VL  - Vol. 18
IS  - Iss. 7
SP  - 345
EP  - 357
ER  - 
TY  - CHAP
A1  - Plescher, Engelbert
A1  - Mathiak, Gerhard
A1  - Willnecker, Rainer
T1  - Technical aspects of liquid diffusion model experiments
T2  - 55th International Astronautical Congress : October 4 - 8, 2004, Vancouver, Canada / International Astronautical Federation. Bd. 8. IAC-04-J.5.04
Y1  - 2005
SP  - 5019
EP  - 5025
PB  - International Astronautical Federation
CY  - Paris
ER  - 
TY  - JOUR
A1  - Mathiak, Gerhard
A1  - Plescher, Engelbert
A1  - Willnecker, Rainer
T1  - Liquid metal diffusion experiments in microgravity - Vibrational effects
JF  - Measurement science and technology
Y1  - 2005
U6  - http://dx.doi.org/10.1088/0957-0233/16/2/003
SN  - 0957-0233
VL  - Vol. 16
IS  - No. 2
SP  - 336
ER  - 
TY  - JOUR
A1  - Mathiak, Gerhard
A1  - Willnecker, Rainer
A1  - Plescher, Engelbert
T1  - Vibrational effects on diffusion experiments
JF  - Microgravity science and technology : international journal for microgravity research and applications
Y1  - 2005
SN  - 0938-0108
VL  - Vol. 15
IS  - No. 1
SP  - 295
EP  - 300
ER  - 
TY  - JOUR
A1  - Staat, Manfred
T1  - Local and global collapse pressure of longitudinally flawed pipes and cylindrical vessels
N2  - Limit loads can be calculated with the finite element method (FEM) for any component, defect geometry, and loading. FEM suggests that published long crack limit formulae for axial defects under-estimate the burst pressure for internal surface defects in thick pipes while limit loads are not conservative for deep cracks and for pressure loaded crack-faces. Very deep cracks have a residual strength, which is modelled by a global collapse load. These observations are combined to derive new analytical local and global collapse loads. The global collapse loads are close to FEM limit analyses for all crack dimensions.
KW  - Finite-Elemente-Methode
KW  - Grenzwertberechnung
KW  - Axialbelastung
KW  - FEM
KW  - Grenzwertberechnung
KW  - Axialbelastung
KW  - Traglastanalyse
KW  - Limit analysis
KW  - Global and local collapse
KW  - Axially cracked pipe
KW  - Pressure loaded crack-face
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Staat, Manfred
T1  - Direct finite element route for design-by-analysis of pressure components
N2  - In the new European standard for unfired pressure vessels, EN 13445-3, there are two approaches for carrying out a Design-by-Analysis that cover both the stress categorization method (Annex C) and the direct route method (Annex B) for a check against global plastic deformation and against progressive plastic deformation. This paper presents the direct route in the language of limit and shakedown analysis. This approach leads to an optimization problem. Its solution with Finite Element Analysis is demonstrated for mechanical and thermal actions. One observation from the examples is that the so-called 3f (3Sm) criterion fails to be a reliable check against progressive plastic deformation. Precise conditions are given, which greatly restrict the applicability of the 3f criterion.
KW  - Einspielen <Werkstoff>
KW  - Plastizität
KW  - Deformation
KW  - Analytischer Zulaessigkeitsnachweis
KW  - Einspiel-Analyse
KW  - fortschreitende plastische Deformation
KW  - alternierend Verformbarkeit
KW  - Einspiel-Kriterium
KW  - Design-by-analysis
KW  - Shakedown analysis
KW  - Progressive plastic deformation
KW  - Alternating plasticity
KW  - Shakedown criterion
Y1  - 2005
ER  - 
TY  - GEN
A1  - Gebhardt, Andreas
T1  - Short course on rapid prototyping
N2  - Rapid Prototyping Technology: Types of models, rapid prototyping processes, prototyper Fundamentals of rapid prototyping Industrial rapid prototyping technology: Stereolithography, (Selective) laser sintering ((S)LS), Layer laminate manufacturing (LLM), Fused layer modeling (FLM), Three dimensional printing (3DP)
KW  - Rapid Prototyping
KW  - Rapid Prototyping
Y1  - 2005
ER  - 
TY  - CHAP
A1  - Brüssermann, Klaus
T1  - Platform of Excellence in "Energy and Environment"
N2  - The Ministry of Science and Research in North Rhine-Westphalia created eight platforms of excellence, one in the research area „Energy and Environment“ in 2002 at ACUAS. This platform concentrates the research and development of 13 professors in Jülich and Aachen and of two scientific institutes with different topics: – NOWUM-Energy with emphasis on efficient and economic energy conversion – The Solar Institute Jülich – SIJ – being the largest research institute in the field of renewables at a University of Applied Sciences in Germany With this platform each possible energy conversion – nuclear, fossil, renewable- can be dealt with to help solving the two most important problems of mankind, energy and potable water. At the CSE are presented the historical development, some research results and the combined master studies in „Energy Systems“ and „Nuclear Applications“
KW  - Energietechnik
KW  - Kernenergie
KW  - Umwelt
KW  - Energy
KW  - environment
KW  - Energy Systems
KW  - Nuclear Applications
Y1  - 2005
ER  - 
TY  - CHAP
A1  - Brüssermann, Klaus
A1  - Deuster, M.
T1  - Temperature measurement to optimise the burning process
N2  - One of the most important parameters in a burning chamber - in power stations, in waste to energy plants - is the temperature. This temperature is in the range of 700-1500 °C - one of the most advanced measuring methods being the acoustic pyrometry with the possibility of producing temperature mapping in one level of the burning chamber - comparable to computer tomography. The results of these measurements discussed in the presentation can be used - to fulfil the legal requirements in the FRG or in the EU - to equalise the temperature in one level of the burning chamber to optimise the steam production (better efficiency of the plant) and to minimise the production of temperature controlled flue gas components (NO, CO a. o.) - to control the SNCR-process if used.
KW  - Pyrometrie
KW  - Temperaturmessung
KW  - temperature measurement
KW  - acoustic pyrometry
KW  - steam production
KW  - flue gas components
Y1  - 2005
ER  - 
TY  - CHAP
A1  - Vedral, Andreas
A1  - Wollert, Jörg
T1  - Service based Bluetooth dual-hop networks using CORBA
T2  - Proceedings of the IASTED International Conference on Artificial Intelligence and Applications : as part of the 23rd IASTED International Multi-Conference on Applied Informatics ; February 14 - 16, 2005, Innsbruck, Austria
Y1  - 2005
SN  - 0-88986-457-8
SP  - 724
EP  - 728
PB  - Acta Pr.
CY  - Anaheim, Calif.
ER  - 
TY  - JOUR
A1  - Seibler, Jost
A1  - Küter-Luks, Birgit
A1  - Kern, Heidrun
A1  - Streu, Sandra
A1  - Plum, Leona
A1  - Maurer, Jan
A1  - Kühn, Ralf
A1  - Brüning, Jens C.
A1  - Schwenk, Frieder
T1  - Single copy shRNA configuration for ubiquitous gene knockdown in mice
JF  - Nucleic Acids Research
Y1  - 2005
U6  - http://dx.doi.org/10.1093/nar/gni065
SN  - 1362-4962
VL  - 33
IS  - 7
SP  - e67
ER  - 
TY  - JOUR
A1  - Goetze, Sandra
A1  - Baer, Alexandra
A1  - Winkelmann, Silke
A1  - Nehlsen, Kristina
A1  - Seibler, Jost
A1  - Maass, Karin
A1  - Bode, Jürgen
T1  - Performance of genomic bordering elements at predefined genomic loci
JF  - Molecular and Cellular Biology
Y1  - 2005
U6  - http://dx.doi.org/10.1128/MCB.25.6.2260-2272.2005
SN  - 1098-5549
VL  - 25
IS  - 6
SP  - 2260
EP  - 2272
ER  - 
TY  - JOUR
A1  - Mottaghy, Darius
A1  - Schellschmidt, R.
A1  - Popov, Y. A.
A1  - Clauser, C.
A1  - Kukkonen, I. T.
A1  - Nover, G.
A1  - Milanovsky, S.
A1  - Romushkevich, R. A.
T1  - New heat flow data from the immediate vicinity of the Kola super-deep borehole: Vertical variation in heat flow density confirmed and attributed to advection
JF  - Tectonophysics
Y1  - 2005
U6  - http://dx.doi.org/10.1016/j.tecto.2005.03.005
SN  - 1879-3266
VL  - 401
IS  - 1-2
SP  - 119
EP  - 142
ER  - 
TY  - CHAP
A1  - Rochefort, E. de
A1  - Verver, M.
A1  - Grunendahl, A.
A1  - Mooi, H.
A1  - Butenweg, Christoph
T1  - Detailed modelling of the lumbar spine for investigation of low back pain
T2  - Digital Human Modeling for Design and Engineering Symposium : Iowa City, Iowa June 14-16, 2005. (SAE technical papers series ; 2005-1-2716)
Y1  - 2005
U6  - http://dx.doi.org/10.4271/2005-01-2716
SN  - 0096-736X
SP  - 1
EP  - 11
PB  - SAE International
CY  - Warrendale, Pa.
ER  - 
TY  - JOUR
A1  - Rochefort, E. de
A1  - Verver, M.
A1  - Grunendahl, A.
A1  - Mooi, H.
A1  - Butenweg, Christoph
T1  - Detailed modelling of the lumbar spine for investigations of low back pain
JF  - SAE transactions : papers presented at Society and Section meetings / Society of Automotive Engineers
Y1  - 2005
SN  - 0096-736X
VL  - Volume 114
IS  - Part 7
SP  - 788
EP  - 796
ER  - 
TY  - CHAP
A1  - Gömmel, Andreas
A1  - Butenweg, Christoph
A1  - Kob, Malte
T1  - Towards a complete finite-element model of human phonation: modeling phonatory maneuvers
T2  - 12th Workshop on the Finite Element Method in Biomedical Engineering, Biomechanics and Related Fields : Ulm, Germany, 20 - 21 July 2005 / University of Ulm, Department of Orthodontics ...
Y1  - 2005
SN  - 978-3-9806183-8-0
PB  - Univ., Dep. of Orthodontics
CY  - Ulm
ER  - 
TY  - CHAP
A1  - Karimi, Iman
A1  - Butenweg, Christoph
A1  - Toll, Britta
T1  - Vulnerability assessment of industrial facilities
T2  - Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping
Y1  - 2005
SN  - 1-905088-00-0
U6  - http://dx.doi.org/10.4203/ccp.81.34
SP  - 34, 73
EP  - 75
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - CHAP
A1  - Mistler, Michael
A1  - Butenweg, Christoph
T1  - A seismic design procedure for masonry buildings
T2  - Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping
Y1  - 2005
SN  - 1-905088-00-0
U6  - http://dx.doi.org/10.4203/ccp.81.193
SP  - 465
EP  - 467
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - CHAP
A1  - Renault, Philippe
A1  - Butenweg, Christoph
A1  - Mistler, Michael
T1  - Seismic vulnerability assessment system for bridges
T2  - Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping
Y1  - 2005
SN  - 1-905088-00-0
SP  - 1
EP  - 14
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - CHAP
A1  - Grunendahl, A.
A1  - de Rochefort, E.
A1  - Butenweg, Christoph
T1  - Numerical models for investigating the causes of low back pain due to whole-body vibrations
T2  - 2nd International Conference on Computational Bioengineering : Lisbon, September 14-16 2005. Volume 2.
Y1  - 2005
SN  - 978-972-8469-37-3
SP  - 905
EP  - 914
PB  - IST Press
CY  - Lisbon
ER  - 
TY  - CHAP
A1  - Kalker, Ines
A1  - Neumann, M.
A1  - Butenweg, Christoph
A1  - Holler, Stefan
T1  - Modelling of textile strengthened masonry
T2  - Proceedings of the Tenth International Conference on Civil, Structural and Environmental Engineering Computing : [Rome, Italy, 30. August - 2. September 2005] / ed. by B. H. V. Topping
Y1  - 2005
SN  - 1-905088-00-0
U6  - http://dx.doi.org/10.4203/ccp.81.184
SP  - 447
EP  - 448
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - CHAP
A1  - Gömmel, Andreas
A1  - Krämer, Sebastian
A1  - Butenweg, Christoph
A1  - Kob, Malte
T1  - A combined FE and multiple-mass model for numerical simulation of phonatory maneuvers
T2  - Proceedings / Forum Acusticum, Budapest, 29 Aug - 2 Sep, 2005 : [Acoustics: science and technology for knowledge based society and healthy environment] / ed. by: Fülöp Augusztinovicz ...
Y1  - 2005
SN  - 978-963-8241-68-9
SP  - 2759
EP  - 2764
PB  - OPAKFI Tud. Egyesület
CY  - Budapest
ER  - 
TY  - CHAP
A1  - Renault, Philippe
A1  - Butenweg, Christoph
T1  - Seismic vulnerability assessment of bridges
T2  - First Munich Bridge Assessment Conference, MBAC 2005 : Munich, 20.-25. June 2005
Y1  - 2005
SP  - 1
EP  - 16
ER  - 
TY  - CHAP
A1  - Bitz, Andreas
A1  - El Ouardi, A.
A1  - Streckert, J.
A1  - Hansen, V.
T1  - Efficient calculation of human exposure in front of base station antennas by a combination of the FDTD and Hybrid(2)-method
T2  - Proceedings of the 16th International Zurich Symposium on Electromagnetic Compatibility, Topical Meeting on Biomedical EMC, Zurich, Switzerland, February 2005
Y1  - 2005
SN  - 3-9521199-9-7
SP  - 115
EP  - 118
PB  - ETH Zentrum
CY  - Zürich
ER  - 
TY  - JOUR
A1  - Franke, Helmut
A1  - Streckert, Joachim
A1  - Bitz, Andreas
A1  - Goeke, Johannes
A1  - Hansen, Volkert
A1  - Ringelstein, E. Bernd
A1  - Nattkämper, Heiner
A1  - Galle, Hans-Joachim
A1  - Stögbauer, Florian
T1  - Effects of Universal Mobile Telecommunications System (UMTS) electromagnetic fields on the blood-brain barrier in vitro
JF  - Radiation Research
Y1  - 2005
U6  - http://dx.doi.org/10.1667/RR3424.1
SN  - 1938-5404
VL  - 164
IS  - 3
SP  - 258
EP  - 269
ER  - 
TY  - JOUR
A1  - Wissen, M.
A1  - Bogdanski, N.
A1  - Scheer, H.-C.
A1  - Bitz, Andreas
A1  - Ahrens, G.
A1  - Gruetzner, G.
T1  - Implication of the light polarisation for UV curing of pre-patterned resists
JF  - Microelectronic Engineering
Y1  - 2005
U6  - http://dx.doi.org/10.1016/j.mee.2004.12.099
SN  - 0167-9317
VL  - 78-79
SP  - 659
EP  - 664
ER  - 
TY  - JOUR
A1  - Braband, Henrik
A1  - Yegen, Eda
A1  - Paulßen, Elisabeth
A1  - Abram, Ulrich
T1  - [{ReN(PMe2Ph)3}{ReO3N}]2 – Structural Evidence for the Nitridotrioxorhenate(VII) Anion, [ReO3N]2−
JF  - Zeitschrift für anorganische und allgemeine Chemie : ZAAC = Journal of inorganic and general chemistry
Y1  - 2005
U6  - http://dx.doi.org/10.1002/zaac.200500240
SN  - 1521-3749
VL  - 631
IS  - 12
SP  - 2408
EP  - 2410
ER  - 
TY  - CHAP
A1  - Hammer, Andreas
A1  - Vieth, Matthias
A1  - Maier, Frank
T1  - Co-Plot as a new multivariate analysis method for operations management research?
T2  - Papers of the 12th International EurOMA Conference on Operational and Global Competitiveness, Budapest, Hungary, June 19-22, 2005 / Editor: Krisztina Demeter
Y1  - 2005
SN  - 963-218-455-6
SP  - 1007
EP  - 1016
ER  - 
TY  - RPRT
A1  - Vieth, Matthias
A1  - Hammer, A.
A1  - Maier, F.
T1  - A critical analysis of the co-plot method
T2  - International University in Germany, School of Business Administration / Working paper
Y1  - 2005
IS  - 32
PB  - School of Business Administration, Intern. Univ. in Germany
CY  - Bruchsal
ER  - 
TY  - CHAP
A1  - Kunfermann, Philipp
A1  - Drumm, Christian
T1  - Lifting XML schemas to ontologies - the concept finder algorithm
T2  - MEDIATE 2005 First International Workshop on Mediation in Semantic Web Services    Proceedings of the First International Workshop on Mediation in Semantic Web Services (MEDIATE 2005)
Y1  - 2005
SP  - 113
EP  - 122
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
T1  - Global optimization of low-thrust space missions using evolutionary neurocontrol
T2  - Proceedings of the international workshop on global optimization
N2  - Low-thrust space propulsion systems enable flexible high-energy deep space missions, but the design and optimization of the interplanetary transfer trajectory is usually difficult. It involves much experience and expert knowledge because the convergence behavior of traditional local trajectory optimization methods depends strongly on an adequate initial guess. Within this extended abstract, evolutionary neurocontrol, a method that fuses artificial neural networks and evolutionary algorithms, is proposed as a smart global method for low-thrust trajectory optimization. It does not require an initial guess. The implementation of evolutionary neurocontrol is detailed and its performance is shown for an exemplary mission.
KW  - Evolutionary Neurocontrol
KW  - Spacecraft Trajectory Optimization
KW  - Low-Thrust Propulsion
Y1  - 2005
SP  - 85
EP  - 90
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
A1  - Baturkin, Volodymyr
A1  - Coverstone, Victoria
A1  - Diedrich, Ben
A1  - Garbe, Gregory
A1  - Görlich, Marianne
A1  - Leipold, Manfred
A1  - Lura, Franz
A1  - Macdonald, Malcolm
A1  - McInnes, Colin
A1  - Mengali, Giovanni
A1  - Quarta, Alessandro
A1  - Rios-Reyes, Leonel
A1  - Scheeres, Daniel J.
A1  - Seboldt, Wolfgang
A1  - Wie, Bong
T1  - Potential effects of optical solar sail degredation on trajectory design
T2  - AAS/AIAA Astrodynamics Specialist
N2  - The optical properties of the thin metalized polymer films that are projected for solar sails are assumed to be affected by the erosive effects of the space environment. Their degradation behavior in the real space environment, however, is to a considerable degree indefinite, because initial ground test results are controversial and relevant inspace tests have not been made so far. The standard optical solar sail models that are currently used for trajectory design do not take optical degradation into account, hence its potential effects on trajectory design have not been investigated so far. Nevertheless, optical degradation is important for high-fidelity solar sail mission design, because it decreases both the magnitude of the solar radiation pressure force acting on the sail and also the sail control authority. Therefore, we propose a simple parametric optical solar sail degradation model that describes the variation of the sail film’s optical coefficients with time, depending on the sail film’s environmental history, i.e., the radiation dose. The primary intention of our model is not to describe the exact behavior of specific film-coating combinations in the real space environment, but to provide a more general parametric framework for describing the general optical degradation behavior of solar sails. Using our model, the effects of different optical degradation behaviors on trajectory design are investigated for various exemplary missions.
Y1  - 2005
N1  - 2005 AAS/AIAA Astrodynamics Specialist Conference, 7-11.08.2005. Lake Tahoe, California
https://www.space-flight.org/AAS_meetings/2005_astro/2005_astro.html
SP  - 1
EP  - 23
ER  - 
TY  - JOUR
A1  - Grajewski, Matthias
A1  - Hron, Jaroslav
A1  - Turek, Stefan
T1  - Dual weighted a posteriori error estimation for a new nonconforming linear finite element on quadrilaterals
JF  - Applied Numerical Mathematics
N2  - After a short introduction of a new nonconforming linear finite element on quadrilaterals recently developed by Park, we derive a dual weighted residual-based a posteriori error estimator (in the sense of Becker and Rannacher) for this finite element. By computing a corresponding dual solution we estimate the error with respect to a given target error functional. The reliability and efficiency of this estimator is analyzed in several numerical experiments.
Y1  - 2005
U6  - http://dx.doi.org/10.1016/j.apnum.2004.09.016
SN  - 0168-9274
VL  - 54
IS  - 3-4
SP  - 504
EP  - 518
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Dachwald, Bernd
T1  - Optimization of very-low-thrust trajectories using evolutionary neurocontrol
JF  - Acta Astronautica
N2  - Searching optimal interplanetary trajectories for low-thrust spacecraft is usually a difficult and time-consuming task that involves much experience and expert knowledge in astrodynamics and optimal control theory. This is because the convergence behavior of traditional local optimizers, which are based on numerical optimal control methods, depends on an adequate initial guess, which is often hard to find, especially for very-low-thrust trajectories that necessitate many revolutions around the sun. The obtained solutions are typically close to the initial guess that is rarely close to the (unknown) global optimum. Within this paper, trajectory optimization problems are attacked from the perspective of artificial intelligence and machine learning. Inspired by natural archetypes, a smart global method for low-thrust trajectory optimization is proposed that fuses artificial neural networks and evolutionary algorithms into so-called evolutionary neurocontrollers. This novel method runs without an initial guess and does not require the attendance of an expert in astrodynamics and optimal control theory. This paper details how evolutionary neurocontrol works and how it could be implemented. The performance of the method is assessed for three different interplanetary missions with a thrust to mass ratio <0.15mN/kg (solar sail and nuclear electric).
Y1  - 2005
SN  - 1879-2030
VL  - 57
IS  - 2-8
SP  - 175
EP  - 185
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -