TY  - JOUR
A1  - Ferrein, Alexander
A1  - Fritz, Christian
A1  - Lakemeyer, Gerhard
T1  - Extending DTGOLOG with Options / Ferrein, Alexander ; Fritz, Christian ; Lakemeyer, Gerhard
JF  - IJCAI-03, Proceedings of the Eighteenth International Joint Conference on Artificial Intelligence, Acapulco, Mexico, August 9-15, 2003
Y1  - 2003
SP  - 1391
EP  - 1393
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Zambou, Nathan
A1  - Abel, Dirk
T1  - Längsdynamikregelung eines Fahrzeugkonvois mit Hilfe der Modellgestützten Prädiktiven Regelung / Zambou, N. ; Enning, M. ; Abel, D.
JF  - Telematik 2003 : Tagung Siegen, 17. und 18. Juni 2003 / VDI-VDE-Gesellschaft Mess- und Automatisierungstechnik
Y1  - 2003
SN  - 3-18-091785-7
N1  - VDI-Berichte ; 1785
SP  - 12 S.
PB  - VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Gitter, R.
A1  - Hornhardt, Ch.
A1  - Koewius, A.
A1  - Wahle, Michael
A1  - Landwein, Th. M.
A1  - Linn, W.
A1  - Meiners, F.
A1  - Wenk, L.
T1  - Konstruieren mit Aluminium [Kapitel 4]
T2  - Aluminium-Taschenbuch / Hrsg.: Aluminium-Zentrale Düsseldorf. - Bd. 3: Weiterverarbeitung und Anwendung
Y1  - 2003
SN  - 3-87017-275-4
SP  - 355
EP  - 599
PB  - Aluminium-Verlag
CY  - Düsseldorf
ET  - 16. Auflage
ER  - 
TY  - BOOK
A1  - Staat, Manfred
A1  - Heitzer, Michael
T1  - Numerical methods for limit and shakedown analysis. Deterministic and probabilistic problems.
Y1  - 2003
SN  - 3-00-010001-6
N1  - NIC Series Vol. 15 / Ed. by Staat, M; Heitzer, M.
PB  - John von Neumann Institute for Computing (NIC)
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Groß, Rolf Fritz
A1  - Berger, Jörg
A1  - Groß, H.
T1  - Gebäudeautomation - Betriebsdatenerfassung und Gebäudeleittechnik im Klartext
T1  - Operating data- and facility management in clear
JF  - HLH. Heizung, Lüftung/Klima, Haustechnik
KW  - Heizung
KW  - Lüftung
KW  - Klimatechnik
KW  - Lüftungstechnik
KW  - Haustechnik
Y1  - 2003
SN  - 1436-5103
VL  - 54
IS  - 2
SP  - 81
PB  - Springer
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Heinrichs, U.
A1  - Pietrzyk, Uwe
A1  - Ziemons, Karl
T1  - Design optimization of the PMT-ClearPET prototypes based on simulation studies with GEANT3
JF  - IEEE Transactions on Nuclear Science
N2  - Within the Crystal Clear Collaboration (CCC), four centers are developing second generation high performance small animal positron emission tomography (PET) scanners for different kinds of animals and medical applications. The first prototypes are photomultiplier tube (PMT)-based systems including depth of interaction (DOI) detection by using a phoswich layer of lutetium oxyorthosilicate (LSO) and lutetium yttrium aluminum perovskite (LuYAP). The aim of these simulation studies is to optimize sensitivity and spatial resolution of given designs, which vary in fields of view (FOVs) caused by different detector configurations (ring/octagon) and sizes. For this purpose the simulation tool GEANT3 (CERN, Geneva, Switzerland) was used.
Y1  - 2003
SN  - 0018-9499
VL  - 50
IS  - 5
SP  - 1428
EP  - 1432
ER  - 
TY  - JOUR
A1  - Heinrichs, U.
A1  - Pietrzyk, Uwe
A1  - Ziemons, Karl
T1  - Design optimization of the PMT-ClearPET prototypes based on simulation studies with GEANT3
JF  - 2002 IEEE Nuclear Science Symposium Conference Record, Vol. 3
N2  - Within the Crystal Clear Collaboration four centres are developing 2nd generation high performance small animal PET scanners for different kinds of animals and medical applications. The first prototypes are PMT-based systems including depth of interaction (DOI) detection by using a phoswich layer of LSO and LuYAP. The aim of these simulation studies is to optimize sensitivity and spatial resolution of given designs, which vary in FOVs caused by different detector configurations (ring/octagon) and sizes. For this purpose the simulation tool GEANT3 (CERN) was used. The simulations have shown that all PMT designs with one-to-one coupling of crystals have a very nonlinear axial sensitivity profile. By shifting every other PMT 1/4 of a PMT length in axial direction the sampling of the FOVs became more homogeneous. At an energy threshold of 350keV the regression coefficient increases from 0.818 for the non-shifted to 0.993 for the shifted design. Simulations of a point source centred in the FOV (threshold: 350keV) resulted in sensitivities of 4.2% for a 4×20PMT (LSO/LuYAP a 10mm) and 3.8% for a 4×16PMT (LSO/LuYAP a 8mm) ring design. The 3D-MLEM reconstruction of a point source shows the enormous improvement of resolution using a crystal double layer with DOI (3.1mm at 40mm from CFOV) instead of a 20mm single layer (11.9mm).
Y1  - 2003
SN  - 1082-3654
SP  - 682
EP  - 686
ER  - 
TY  - JOUR
A1  - Call, Guido
T1  - Couponing
JF  - Das Wirtschaftsstudium : WISU ; Zeitschrift für Ausbildung, Examen und Weiterbildung
Y1  - 2003
SN  - 0340-3084
VL  - 32
IS  - 11
SP  - 1372
EP  - 1377
PB  - Lange
CY  - Düsseldorf
ER  -