@article{SchaeferHoefkenSchuba2011, author = {Schaefer, Thomas and H{\"o}fken, Hans-Wilhelm and Schuba, Marko}, title = {Windows Phone 7 from a Digital Forensics' Perspective}, publisher = {Springer}, address = {Berlin}, year = {2011}, language = {en} } @article{BooysenRiegerFerrein2011, author = {Booysen, Tracy and Rieger, Michael and Ferrein, Alexander}, title = {Towards inexpensive robots for science \& technology teaching and education in Africa}, publisher = {IEEE}, address = {New York}, isbn = {978-1-61284-992-8}, pages = {1 -- 6}, year = {2011}, language = {en} } @incollection{GligorevicEppleSchnell2011, author = {Gligorevic, Snjezana and Epple, Ulrich and Schnell, Michael}, title = {The LDACS1 physical layer design}, series = {Future aeronautical communications}, booktitle = {Future aeronautical communications}, publisher = {Intech}, address = {London}, isbn = {978-953-307-625-6}, pages = {317 -- 332}, year = {2011}, language = {en} } @article{BragardConradvanHoeketal.2011, author = {Bragard, Michael and Conrad, M. and van Hoek, H. and De Doncker, R. W.}, title = {The integrated emitter turn-off thyristor (IETO) : an innovative thyristor-based high power semiconductor device using MOS assisted turn-off}, series = {IEEE transactions on industry applications}, volume = {47}, journal = {IEEE transactions on industry applications}, number = {5}, publisher = {IEEE}, address = {New York}, issn = {0093-9994}, doi = {10.1109/TIA.2011.2161432}, pages = {2175 -- 2182}, year = {2011}, language = {en} } @inproceedings{BragardRongeDeDoncker2011, author = {Bragard, Michael and Ronge, C. and De Doncker, R. W.}, title = {Sandwich design of high-power thyristor based devices with integrated MOSFET structure}, series = {Proceedings of the 2011 - 14th - European Conference on Power Electronics and Applications (EPE 2011) : Aug. 30, 2011 - Sept. 1, 2011, Birmingham, United Kingdom}, booktitle = {Proceedings of the 2011 - 14th - European Conference on Power Electronics and Applications (EPE 2011) : Aug. 30, 2011 - Sept. 1, 2011, Birmingham, United Kingdom}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-61284-167-0 (Print)}, year = {2011}, language = {en} } @article{FerreinMaraisPotgieteretal.2011, author = {Ferrein, Alexander and Marais, Stephen and Potgieter, Anet and Steinbauer, Gerald}, title = {RoboCup Junior: A vehicle for S\&T education in Africa?}, publisher = {IEEE}, address = {New York}, isbn = {978-1-61284-992-8}, pages = {1 -- 6}, year = {2011}, language = {en} } @article{UmutluOrzadaKinneretal.2011, author = {Umutlu, Lale and Orzada, Stephan and Kinner, Sonja and Maderwald, Stefan and Bronte, Irina and Bitz, Andreas and Kraff, Oliver and Ladd, Susanne C. and Antoch, Gerald and Ladd, Mark E. and Quick, Harald H. and Lauenstein, Thomas C.}, title = {Renal imaging at 7 Tesla: preliminary results}, series = {European Radiology}, volume = {21}, journal = {European Radiology}, number = {4}, publisher = {Springer}, address = {Berlin}, issn = {1432-1084}, pages = {841 -- 849}, year = {2011}, abstract = {Objective To investigate the feasibility of 7T MR imaging of the kidneys utilising a custom-built 8-channel transmit/receive radiofrequency body coil. Methods In vivo unenhanced MR was performed in 8 healthy volunteers on a 7T whole-body MR system. After B0 shimming the following sequences were obtained: 1) 2D and 3D spoiled gradient-echo sequences (FLASH, VIBE), 2) T1-weighted 2D in and opposed phase 3) True-FISP imaging and 4) a T2-weighted turbo spin echo (TSE) sequence. Visual evaluation of the overall image quality was performed by two radiologists. Results Renal MRI at 7T was feasible in all eight subjects. Best image quality was found using T1-weighted gradient echo MRI, providing high anatomical details and excellent conspicuity of the non-enhanced vasculature. With successful shimming, B1 signal voids could be effectively reduced and/or shifted out of the region of interest in most sequence types. However, T2-weighted TSE imaging remained challenging and strongly impaired because of signal heterogeneities in three volunteers. Conclusion The results demonstrate the feasibility and diagnostic potential of dedicated 7T renal imaging. Further optimisation of imaging sequences and dedicated RF coil concepts are expected to improve the acquisition quality and ultimately provide high clinical diagnostic value.}, language = {en} } @article{SchifferFerreinLakemeyer2011, author = {Schiffer, Stefan and Ferrein, Alexander and Lakemeyer, Gerhard}, title = {Reasoning with Qualitative Positional Information for Domestic Domains in the Situation Calculus}, series = {Journal of Intelligent \& Robotic Systems}, volume = {63}, journal = {Journal of Intelligent \& Robotic Systems}, number = {2}, publisher = {Springer}, address = {Berlin}, isbn = {0921-0296}, pages = {273 -- 300}, year = {2011}, language = {en} } @article{NiemuellerFerreinEckeletal.2011, author = {Niem{\"u}ller, Tim and Ferrein, Alexander and Eckel, Gerhard and Pirro, David and Podbregar, Patrick and Kellner, Tobias and Rath, Christoph and Steinbauer, Gerald}, title = {Providing Ground-truth Data for the Nao Robot Platform}, series = {RoboCup 2010: Robot Soccer World Cup XIV}, journal = {RoboCup 2010: Robot Soccer World Cup XIV}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-642-20217-9}, pages = {133 -- 144}, year = {2011}, language = {en} } @article{Huening2011, author = {H{\"u}ning, Felix}, title = {PowerMOSFETs in ANL2-Technologie : Ansteuerungen bis in den kW-Bereich mit wenig Verlustleistung und Platzbedarf}, series = {Elektronik-Industrie}, volume = {42}, journal = {Elektronik-Industrie}, number = {10}, publisher = {H{\"u}thig}, address = {Heidelberg}, issn = {0174-5522}, pages = {36 -- 39}, year = {2011}, language = {de} }