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  - 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  - 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  - 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  - 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  - Dikta, Gerhard
A1  - Ghorai, Jugal
A1  - Schmidt, Christian
T1  - The Central Limit Theorem under Semiparametric Random Censorship Models
JF  - Journal of Statistical Planning and Inference. 127 (2005), H. 1
Y1  - 2005
SN  - 0378-3758
SP  - 23
EP  - 51
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  - GEN
A1  - Achten, Richard
A1  - Bauer, Andreas
A1  - Bertram, Walter
A1  - Cremer, Markus
A1  - Daemen, Jos
A1  - Dehnhardt, Markus
A1  - Fleischer, Manfred
A1  - Kirchner, Peter
A1  - Leyendecker, Marco
A1  - Pietrzyk, Uwe
A1  - Schmitz, Jakob
A1  - Ziemons, Karl
A1  - Zilles, Karl
T1  - Vorrichtung zum Halten eines lebenden Objektes bei physiologischen Messungen
N2  - Die vorliegende Erfindung betrifft eine Vorrichtung zum Halten eines lebenden Objektes bei physiologischen Messungen mit einem Basiselement und Mitteln zum Arretieren des lebenden Objektes, die atraumatische Ohrenhalter sowie ein Mundstück aufweisen, das mit einer Aussparung für die Zähne des Lebewesens versehen ist, mit einem Masseanteil von wenigstens 95% an glasfaserverstärktem Kunststoff.
Y1  - 2005
N1  - Patent Anmelder : Forschungszentrum Jülich GmbH
SP  - 1
EP  - 17
ER  -