TY  - CHAP
A1  - Markinkovic, Marko
A1  - Butenweg, Christoph
A1  - Pavese, A.
A1  - Lanese, I.
A1  - Hoffmeister, B.
A1  - Pinkawa, M.
A1  - Vulcu, C.
A1  - Bursi, O.
A1  - Nardin, C.
A1  - Paolacci, F.
A1  - Quinci, G.
A1  - Fragiadakis, M.
A1  - Weber, F.
A1  - Huber, P.
A1  - Renault, P.
A1  - Gündel, M.
A1  - Dyke, S.
A1  - Ciucci, M.
A1  - Marino, A.
T1  - Investigation of the seismic behaviour of structural and nonstructural components in industrial facilities by means of shaking table tests
T2  - Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)
Y1  - 2020
SN  - 978-3-86359-729-0
SP  - 159
EP  - 172
ER  - 
TY  - JOUR
A1  - Khodaverdi, M.
A1  - Weber, S.
A1  - Streun, M.
A1  - Parl, C.
A1  - Ziemons, Karl
T1  - High resolution imaging with ClearPET™ Neuro - first animal images
JF  - 2005 IEEE Nuclear Science Symposium Conference Record, Vol. 3
N2  - The ClearPET™ Neuro is the first full ring scanner within the Crystal Clear Collaboration (CCC). It consists of 80 detector modules allocated to 20 cassettes. LSO and LuYAP:Ce crystals in phoswich configuration in combination with position sensitive photomultiplier tubes are used to achieve high sensitivity and realize the acquisition of the depth of interaction (DOI) information. The complete system has been tested concerning the mechanical and electronical stability and interplay. Moreover, suitable corrections have been implemented into the reconstruction procedure to ensure high image quality. We present first results which show the successful operation of the ClearPET™ Neuro for artefact free and high resolution small animal imaging. Based on these results during the past few months the ClearPET™ Neuro System has been modified in order to optimize the performance.
Y1  - 2006
SN  - 1082-3654
SP  - 1641
EP  - 1644
ER  - 
TY  - JOUR
A1  - Kaminsky, Radoslav
A1  - Dumont, K.
A1  - Weber, Hans-Joachim
A1  - Schroll, M.
A1  - Verdonck, P.
T1  - PIV validation of blood-heart valve leaflet interaction modelling
JF  - The International journal of artificial organs. 30 (2007), H. 7
Y1  - 2007
SP  - 640
EP  - 648
PB  - -
ER  - 
TY  - JOUR
A1  - Hekmat, Khosro
A1  - Salemink, B.
A1  - Lauterbach, Gerhard
A1  - Schwinger, R. H. G.
A1  - Südkamp, M.
A1  - Weber, Hans-Joachim
A1  - Mehlhorn, U.
T1  - Interference by cellular phones with permanent implanted pacemakers: an update
JF  - Europace. 6 (2004), H. 4
Y1  - 2004
SP  - 363
EP  - 369
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  - Khodaverdi, M.
A1  - Chaziioannou, 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  - 2003 IEEE Nuclear Science Symposium Conference Record, Vol. 4
N2  - This study has been performed to design the combination of the new ClearPET TM (ClearPET is a trademark of the Crystal Clear Collaboration), a small animal Positron Emission Tomography (PET) system, with a microComputed Tomography (microCT) scanner. The properties of different microCT systems have been determined by simulations based on GEANT4. We 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  - 2004
SN  - 1082-3654
SP  - 2989
EP  - 2993
ER  - 
TY  - JOUR
A1  - Christ, D.
A1  - Hollendung, A.
A1  - Larue, H.
A1  - Parl, C.
A1  - Streun, M.
A1  - Weber, S.
A1  - Ziemons, Karl
A1  - Halling, H.
T1  - Homogenization of the MultiChannel PM gain by inserting light attenuating masks
JF  - 2003 IEEE Nuclear Science Symposium Conference Record, Vol. 4
N2  - MultiChannel Photomultipliers (PM), like the R7600-00-M64 or R5900-00-M64 from Hamamatsu, are often chosen as photodetectors in high-resolution positron emission tomography (PET). A major problem of this PM is the nonuniform channel gain. In order to solve this problem, light attenuating masks were created. The aim of the masks is a homogenization of the output of all 64 channels using different hole sizes at the channel positions. The hole area, which is individually defined for the different channels, is inversely proportional to the channel gain. The measurements by inserting light attenuating masks improved a homogenization to a ratio of 1:1.2.
Y1  - 2004
SN  - 1082-3654
SP  - 2382
EP  - 2385
ER  - 
TY  - JOUR
A1  - Ribitsch, D.
A1  - Heumann, S.
A1  - Trotscha, E.
A1  - Herrero Acero, E.
A1  - Greimel, K.
A1  - Leber, R.
A1  - Birger-Gruenberger, R.
A1  - Deller, S.
A1  - Eiteljoerg, I.
A1  - Remler, P.
A1  - Weber, Th.
A1  - Siegert, Petra
A1  - Maurer, Karl-Heinz
A1  - Donelli, I.
A1  - Freddi, G.
A1  - Schwab, H.
A1  - Guebitz, G. M.
T1  - Hydrolysis of polyethyleneterephthalate by p-nitrobenzylesterase from Bacillus subtilis
JF  - Biotechnology progress
Y1  - 2011
SN  - 1520-6033 (E-Journal); 8756-7938 (Print)
VL  - Vol. 27
IS  - Iss. 4
SP  - 951
EP  - 960
PB  - Wiley
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Weber, Tobias
A1  - Arent, Jan-Christoph
A1  - Münch, Lukas
A1  - Duhovic, Miro
A1  - Balvers, Johannes M.
T1  - A fast method for the generation of boundary conditions for thermal autoclave simulation
JF  - Composites Part A
N2  - Manufacturing process simulation enables the evaluation and improvement of autoclave mold concepts early in the design phase. To achieve a high part quality at low cycle times, the thermal behavior of the autoclave mold can be investigated by means of simulations. Most challenging for such a simulation is the generation of necessary boundary conditions. Heat-up and temperature distribution in an autoclave mold are governed by flow phenomena, tooling material and shape, position within the autoclave, and the chosen autoclave cycle. This paper identifies and summarizes the most important factors influencing mold heat-up and how they can be introduced into a thermal simulation. Thermal measurements are used to quantify the impact of the various parameters. Finally, the gained knowledge is applied to develop a semi-empirical approach for boundary condition estimation that enables a simple and fast thermal simulation of the autoclave curing process with reasonably high accuracy for tooling optimization.
Y1  - 2016
U6  - http://dx.doi.org/10.1016/j.compositesa.2016.05.036
SN  - 1359-835X
VL  - 88
SP  - 216
EP  - 225
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Otten, D.
A1  - Schmid, M.
A1  - Weber, Tobias
T1  - Advances In Sheet Metal-Forming: Reduction Of Tooling Cost By Methodical Optimization
T2  - Proceedings of SAMPE Europe Conference, Amiens , France
Y1  - 2015
ER  -