@inproceedings{BitzKraffOrzadaetal.2010,
  author    = {Bitz, Andreas and Kraff, O. and Orzada, S. and Maderwald, S. and Brote, I. and Ladd, M.},
  title     = {Experimental and Numerical Assessment of RF Safety of Transmit Coils at 7 Tesla},
  series = {ISMRM workshop on MR safety 2010 : RF heating of the human in MRI : workshop series. The Washington County Historic Courthouse, Stillwater, Minnesota, USA, 15 - 17 October 2010},
  booktitle = {ISMRM workshop on MR safety 2010 : RF heating of the human in MRI : workshop series. The Washington County Historic Courthouse, Stillwater, Minnesota, USA, 15 - 17 October 2010},
  isbn      = {978-1-62276-088-6},
  pages     = {195},
  year      = {2010},
  language  = {en}
}
@article{CzarneckiWinkelmannSpiliopoulou2010,
  author    = {Czarnecki, Christian and Winkelmann, Axel and Spiliopoulou, Myra},
  title     = {Services in electronic telecommunication markets: a framework for planning the virtualization of processes},
  series = {Electronic Markets},
  volume    = {20},
  journal   = {Electronic Markets},
  number    = {3-4},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1422-8890},
  doi       = {10.1007/s12525-010-0045-8},
  pages     = {197 -- 207},
  year      = {2010},
  abstract  = {The potential of electronic markets in enabling innovative product bundles through flexible and sustainable partnerships is not yet fully exploited in the telecommunication industry. One reason is that bundling requires seamless de-assembling and re-assembling of business processes, whilst processes in telecommunication companies are often product-dependent and hard to virtualize. We propose a framework for the planning of the virtualization of processes, intended to assist the decision maker in prioritizing the processes to be virtualized: (a) we transfer the virtualization pre-requisites stated by the Process Virtualization Theory in the context of customer-oriented processes in the telecommunication industry and assess their importance in this context, (b) we derive IT-oriented requirements for the removal of virtualization barriers and highlight their demand on changes at different levels of the organization. We present a first evaluation of our approach in a case study and report on lessons learned and further steps to be performed.},
  language  = {en}
}
@article{OrzadaMaderwaldPoseretal.2010,
  author    = {Orzada, Stephan and Maderwald, Stefan and Poser, Benedikt Andreas and Bitz, Andreas and Quick, Harald H. and Ladd, Mark E.},
  title     = {RF excitation using time interleaved acquisition of modes (TIAMO) to address B1 inhomogeneity in high-field MRI},
  series = {Magnetic Resonance in Medicine},
  volume    = {64},
  journal   = {Magnetic Resonance in Medicine},
  number    = {2},
  publisher = {Wiley-Liss},
  address   = {New York},
  issn      = {1522-2594},
  doi       = {10.1002/mrm.22527},
  pages     = {327 -- 333},
  year      = {2010},
  abstract  = {As the field strength and, therefore, the operational frequency in MRI is increased, the wavelength approaches the size of the human head/body, resulting in wave effects, which cause signal decreases and dropouts. Several multichannel approaches have been proposed to try to tackle these problems, including RF shimming, where each element in an array is driven by its own amplifier and modulated with a certain (constant) amplitude and phase relative to the other elements, and Transmit SENSE, where spatially tailored RF pulses are used. In this article, a relatively inexpensive and easy to use imaging scheme for 7 Tesla imaging is proposed to mitigate signal voids due to B1 field inhomogeneity. Two time-interleaved images are acquired using a different excitation mode for each. By forming virtual receive elements, both images are reconstructed together using GRAPPA to achieve a more homogeneous image, with only small SNR and SAR penalty in head and body imaging at 7 Tesla.},
  language  = {en}
}
@article{KraffBitzDammannetal.2010,
  author    = {Kraff, Oliver and Bitz, Andreas and Dammann, Philipp and Ladd, Susanne C. and Ladd, Mark E. and Quick, Harald H.},
  title     = {An eight-channel transmit/receive multipurpose coil for musculoskeletal MR imaging at 7 T},
  series = {Medical Physics},
  volume    = {37},
  journal   = {Medical Physics},
  number    = {12},
  publisher = {Wiley},
  address   = {Hoboken, NJ},
  issn      = {2473-4209},
  doi       = {10.1118/1.3517176},
  pages     = {6368 -- 6376},
  year      = {2010},
  abstract  = {Purpose: MRI plays a leading diagnostic role in assessing the musculoskeletal (MSK) system and is well established for most questions at clinically used field strengths (up to 3 T). However, there are still limitations in imaging early stages of cartilage degeneration, very fine tendons and ligaments, or in locating nerve lesions, for example. 7 T MRI of the knee has already received increasing attention in the current published literature, but there is a strong need to develop new radiofrequency (RF) coils to assess more regions of the MSK system. In this work, an eight-channel transmit/receive RF array was built as a multipurpose coil for imaging some of the thus far neglected regions. An extensive coil characterization protocol and first in vivo results of the human wrist, shoulder, elbow, knee, and ankle imaged at 7 T will be presented. Methods: Eight surface loop coils with a dimension ofurn:x-wiley:00942405:media:mp7176:mp7176-math-0001 were machined from FR4 circuit board material. To facilitate easy positioning, two coil clusters, each with four loop elements, were combined to one RF transmit/receive array. An overlapped and shifted arrangement of the coil elements was chosen to reduce the mutual inductance between neighboring coils. A phantom made of body-simulating liquid was used for tuning and matching on the bench. Afterward, the S-parameters were verified on a human wrist, elbow, and shoulder. For safety validation, a detailed compliance test was performed including full wave simulations of the RF field distribution and the corresponding specific absorption rate (SAR) for all joints. In vivo images of four volunteers were assessed with gradient echo and spin echo sequences modified to obtain optimal image contrast, full anatomic coverage, and the highest spatial resolution within a reasonable acquisition time. The performance of the RF coil was additionally evaluated by in vivo B1 mapping. Results: A comparison of B1 per unit power, flip angle distribution, and anatomic images showed a fairly homogeneous excitation for the smaller joints (elbow, wrist, and ankle), while for the larger joints, the shoulder and especially the knee, B1 inhomogeneities and limited penetration depth were more pronounced. However, the greater part of the shoulder joint could be imaged.In vivo images rendered very fine anatomic details such as fascicles of the median nerve and the branching of the nerve bundles. High-resolution images of cartilage, labrum, and tendons could be acquired. Additionally, turbo spin echo (TSE) and inversion recovery sequences performed very well. Conclusions: This study demonstrates that the concept of two four-channel transmit/receive RF arrays can be used as a multipurpose coil for high-resolutionin vivo MR imaging of the musculoskeletal system at 7 T. Not only gradient echo but also typical clinical and SAR-intensive sequences such as STIR and TSE performed well. Imaging of small structures and peripheral nerves could in particular benefit from this technique.},
  language  = {en}
}
@article{SchlamannVoigtMaderwaldetal.2010,
  author    = {Schlamann, Marc and Voigt, Melanie A. and Maderwald, Stefan and Bitz, Andreas and Kraff, Oliver and Ladd, Susanne C. and Ladd, Mark E. and Forsting, Michael and Wilhelm, Hans},
  title     = {Exposure to high-field MRI does not affect cognitive function},
  series = {Journal of Magnetic Resonance Imaging},
  volume    = {31},
  journal   = {Journal of Magnetic Resonance Imaging},
  number    = {5},
  publisher = {Wiley-Liss},
  address   = {New York},
  issn      = {1522-2586},
  doi       = {10.1002/jmri.22065},
  pages     = {1061 -- 1066},
  year      = {2010},
  abstract  = {Purpose To assess potential cognitive deficits under the influence of static magnetic fields at various field strengths some studies already exist. These studies were not focused on attention as the most vulnerable cognitive function. Additionally, mostly no magnetic resonance imaging (MRI) sequences were performed. Materials and Methods In all, 25 right-handed men were enrolled in this study. All subjects underwent one MRI examination of 63 minutes at 1.5 T and one at 7 T within an interval of 10 to 30 days. The order of the examinations was randomized. Subjects were referred to six standardized neuropsychological tests strictly focused on attention immediately before and after each MRI examination. Differences in neuropsychological variables between the timepoints before and after each MRI examination were assessed and P-values were calculated Results Only six subtests revealed significant differences between pre- and post-MRI. In these tests the subjects achieved better results in post-MRI testing than in pre-MRI testing (P = 0.013-0.032). The other tests revealed no significant results. Conclusion The improvement in post-MRI testing is only explicable as a result of learning effects. MRI examinations, even in ultrahigh-field scanners, do not seem to have any persisting influence on the attention networks of human cognition immediately after exposure.},
  language  = {en}
}
@article{SchlamannYoonMaderwaldetal.2010,
  author    = {Schlamann, Marc and Yoon, Min-Suk and Maderwald, Stefan and Pietrzyk, Thomas and Bitz, Andreas and Gerwig, Marcus and Forsting, Michael and Ladd, Susanne C. and Ladd, Mark E. and Kastrup, Oliver},
  title     = {Short term effects of magnetic resonance imaging on excitability of the motor cortex at 1.5T and 7T},
  series = {Academic Radiology},
  volume    = {17},
  journal   = {Academic Radiology},
  number    = {3},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1076-6332},
  doi       = {10.1016/j.acra.2009.10.004},
  pages     = {277 -- 281},
  year      = {2010},
  abstract  = {Rationale and Objectives The increasing spread of high-field and ultra-high-field magnetic resonance imaging (MRI) scanners has encouraged new discussion of the safety aspects of MRI. Few studies have been published on possible cognitive effects of MRI examinations. The aim of this study was to examine whether changes are measurable after MRI examinations at 1.5 and 7 T by means of transcranial magnetic stimulation (TMS). Materials and Methods TMS was performed in 12 healthy, right-handed male volunteers. First the individual motor threshold was specified, and then the cortical silent period (SP) was measured. Subsequently, the volunteers were exposed to the 1.5-T MRI scanner for 63 minutes using standard sequences. The MRI examination was immediately followed by another TMS session. Fifteen minutes later, TMS was repeated. Four weeks later, the complete setting was repeated using a 7-T scanner. Control conditions included lying in the 1.5-T scanner for 63 minutes without scanning and lying in a separate room for 63 minutes. TMS was performed in the same way in each case. For statistical analysis, Wilcoxon's rank test was performed. Results Immediately after MRI exposure, the SP was highly significantly prolonged in all 12 subjects at 1.5 and 7 T. The motor threshold was significantly increased. Fifteen minutes after the examination, the measured value tended toward normal again. Control conditions revealed no significant differences. Conclusion MRI examinations lead to a transient and highly significant alteration in cortical excitability. This effect does not seem to depend on the strength of the static magnetic field.},
  language  = {en}
}
@article{Ferrein2010,
  author    = {Ferrein, Alexander},
  title     = {golog.lua: Towards a Non-Prolog Implementation of Golog for Embedded Systems},
  pages     = {20 -- 28},
  year      = {2010},
  language  = {en}
}
@article{Ferrein2010,
  author    = {Ferrein, Alexander},
  title     = {golog.lua: Towards a Non-Prolog Implementation of Golog for Embedded Systems},
  series = {Cognitive Robotics / Lakemeyer, Gerhard (ed.)},
  journal   = {Cognitive Robotics / Lakemeyer, Gerhard (ed.)},
  pages     = {1 -- 15},
  year      = {2010},
  language  = {en}
}
@article{NiemuellerFerreinLakemeyer2010,
  author    = {Niem{\"u}ller, Tim and Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {A Lua-based Behavior Engine for Controlling the Humanoid Robot Nao},
  series = {RoboCup 2009: Robot Soccer World Cup XIII},
  journal   = {RoboCup 2009: Robot Soccer World Cup XIII},
  pages     = {240 -- 251},
  year      = {2010},
  language  = {en}
}
@article{FerreinSiebelSteinbauer2010,
  author    = {Ferrein, Alexander and Siebel, Nils T. and Steinbauer, Gerald},
  title     = {Hybrid control for autonomous systems — Integrating learning, deliberation and reactive control},
  series = {Robotics and Autonomous Systems},
  volume    = {58},
  journal   = {Robotics and Autonomous Systems},
  number    = {9},
  isbn      = {0921-8890},
  pages     = {1037 -- 1038},
  year      = {2010},
  language  = {en}
}
@article{vonKnobelsdorfBrenkenhoffFrauenrathProthmannetal.2010,
  author    = {von Knobelsdorf-Brenkenhoff, Florian and Frauenrath, Tobias and Prothmann, Marcel and Dieringer, Matthias A. and Hezel, Fabian and Renz, Wolfgang and Kretschel, Kerstin and Niendorf, Thoralf and Schulz-Menger, Jeanette},
  title     = {Cardiac chamber quantification using magnetic resonance imaging at 7 Tesla—a pilot study},
  volume    = {20},
  publisher = {Springer},
  address   = {Berlin, Heidelberg},
  issn      = {0938-7994},
  doi       = {10.1007/s00330-010-1888-2},
  pages     = {2844 -- 2852},
  year      = {2010},
  abstract  = {Objectives Interest in cardiovascular magnetic resonance (CMR) at 7 T is motivated by the expected increase in spatial and temporal resolution, but the method is technically challenging. We examined the feasibility of cardiac chamber quantification at 7 T. Methods A stack of short axes covering the left ventricle was obtained in nine healthy male volunteers. At 1.5 T, steady-state free precession (SSFP) and fast gradient echo (FGRE) cine imaging with 7 mm slice thickness (STH) were used. At 7 T, FGRE with 7 mm and 4 mm STH were applied. End-diastolic volume, end-systolic volume, ejection fraction and mass were calculated. Results All 7 T examinations provided excellent blood/myocardium contrast for all slice directions. No significant difference was found regarding ejection fraction and cardiac volumes between SSFP at 1.5 T and FGRE at 7 T, while volumes obtained from FGRE at 1.5 T were underestimated. Cardiac mass derived from FGRE at 1.5 and 7 T was larger than obtained from SSFP at 1.5 T. Agreement of volumes and mass between SSFP at 1.5 T and FGRE improved for FGRE at 7 T when combined with an STH reduction to 4 mm. Conclusions This pilot study demonstrates that cardiac chamber quantification at 7 T using FGRE is feasible and agrees closely with SSFP at 1.5 T.},
  language  = {en}
}
@article{FrauenrathHezelRenzetal.2010,
  author    = {Frauenrath, Tobias and Hezel, Fabian and Renz, Wolfgang and de Geyer d'Orth, Thibaut and Dieringer, Matthias and von Knobelsdorf-Brenkenhoff, Florian and Prothmann, Marcel and Schulz-Menger, Jeanette and Niendorf, Thoralf},
  title     = {Acoustic cardiac triggering: a practical solution for synchronization and gating of cardiovascular magnetic resonance at 7 Tesla},
  series = {Journal of Cardiovascular Magnetic Resonance},
  volume    = {12},
  journal   = {Journal of Cardiovascular Magnetic Resonance},
  number    = {1},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1532-429X},
  doi       = {10.1186/1532-429X-12-67},
  year      = {2010},
  abstract  = {Background To demonstrate the applicability of acoustic cardiac triggering (ACT) for imaging of the heart at ultrahigh magnetic fields (7.0 T) by comparing phonocardiogram, conventional vector electrocardiogram (ECG) and traditional pulse oximetry (POX) triggered 2D CINE acquisitions together with (i) a qualitative image quality analysis, (ii) an assessment of the left ventricular function parameter and (iii) an examination of trigger reliability and trigger detection variance derived from the signal waveforms. Results ECG was susceptible to severe distortions at 7.0 T. POX and ACT provided waveforms free of interferences from electromagnetic fields or from magneto-hydrodynamic effects. Frequent R-wave mis-registration occurred in ECG-triggered acquisitions with a failure rate of up to 30\% resulting in cardiac motion induced artifacts. ACT and POX triggering produced images free of cardiac motion artefacts. ECG showed a severe jitter in the R-wave detection. POX also showed a trigger jitter of approximately Δt = 72 ms which is equivalent to two cardiac phases. ACT showed a jitter of approximately Δt = 5 ms only. ECG waveforms revealed a standard deviation for the cardiac trigger offset larger than that observed for ACT or POX waveforms. Image quality assessment showed that ACT substantially improved image quality as compared to ECG (image quality score at end-diastole: ECG = 1.7 ± 0.5, ACT = 2.4 ± 0.5, p = 0.04) while the comparison between ECG vs. POX gated acquisitions showed no significant differences in image quality (image quality score: ECG = 1.7 ± 0.5, POX = 2.0 ± 0.5, p = 0.34). Conclusions The applicability of acoustic triggering for cardiac CINE imaging at 7.0 T was demonstrated. ACT's trigger reliability and fidelity are superior to that of ECG and POX. ACT promises to be beneficial for cardiovascular magnetic resonance at ultra-high field strengths including 7.0 T.},
  language  = {en}
}
@inproceedings{PenneProfittlichRingbecketal.2010,
  author    = {Penne, Jochen and Profittlich, Martin and Ringbeck, Thorsten and Buxbaum, Bernd},
  title     = {Touchless detailed 3D scan of human hand anatomy using time-of-flight cameras},
  series = {Proceedings of the International Conference on 3D Body Scanning Technologies : Lugano, Switzerland, 19-20 October 2010},
  booktitle = {Proceedings of the International Conference on 3D Body Scanning Technologies : Lugano, Switzerland, 19-20 October 2010},
  editor    = {D, Nicola D'Apuzzo},
  publisher = {Hometrica Consulting},
  address   = {Z{\"u}rich},
  isbn      = {978-3-033-02714-5},
  pages     = {361 -- 369},
  year      = {2010},
  language  = {en}
}
@inproceedings{BragardSoltauDeDonckeretal.2010,
  author    = {Bragard, Michael and Soltau, N. and De Doncker, R. W. and Schmiegel, A.},
  title     = {Design and implementation of a 5 kW photovoltaic system with li-ion battery and additional DC-DC converter},
  series = {2010 IEEE Energy Conversion Congress and Exposition (ECCE 2010) : Atlanta, Georgia, USA, 12 - 16 September 2010 / [sponsored by the IEEE Power Electronics and Industry Applications Societies]},
  booktitle = {2010 IEEE Energy Conversion Congress and Exposition (ECCE 2010) : Atlanta, Georgia, USA, 12 - 16 September 2010 / [sponsored by the IEEE Power Electronics and Industry Applications Societies]},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {978-1-4244-5286-6 (Print)},
  doi       = {10.1109/ECCE.2010.5618220},
  pages     = {2944 -- 2949},
  year      = {2010},
  language  = {en}
}
@inproceedings{BragardConradDeDoncker2010,
  author    = {Bragard, Michael and Conrad, M. 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 = {2010 IEEE Energy Conversion Congress and Exposition (ECCE 2010) : Atlanta, Georgia, USA, 12 - 16 September 2010 / [sponsored by the IEEE Power Electronics and Industry Applications Societies]},
  booktitle = {2010 IEEE Energy Conversion Congress and Exposition (ECCE 2010) : Atlanta, Georgia, USA, 12 - 16 September 2010 / [sponsored by the IEEE Power Electronics and Industry Applications Societies]},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {978-1-4244-5286-6 (Print)},
  doi       = {10.1109/ECCE.2010.5618410},
  pages     = {4551 -- 4557},
  year      = {2010},
  language  = {en}
}
@article{NiemuellerFerreinBecketal.2010,
  author    = {Niem{\"u}ller, Tim and Ferrein, Alexander and Beck, Daniel and Lakemeyer, Gerhard},
  title     = {Design Principles of the Component-Based Robot Software Framework Fawkes},
  series = {Simulation, Modeling, and Programming for Autonomous Robots},
  journal   = {Simulation, Modeling, and Programming for Autonomous Robots},
  pages     = {300 -- 311},
  year      = {2010},
  language  = {en}
}
@article{FerreinSteinbauer2010,
  author    = {Ferrein, Alexander and Steinbauer, Gerald},
  title     = {On the Way to High-Level Programming for Resource-Limited Embedded Systems with Golog},
  series = {Simulation, Modeling, and Programming for Autonomous Robots},
  journal   = {Simulation, Modeling, and Programming for Autonomous Robots},
  pages     = {229 -- 240},
  year      = {2010},
  language  = {en}
}
@article{Ferrein2010,
  author    = {Ferrein, Alexander},
  title     = {Robot controllers for highly dynamic environments with real-time constraints},
  series = {K{\"u}nstliche Intelligenz : KI. 24 (2010), H. 2},
  journal   = {K{\"u}nstliche Intelligenz : KI. 24 (2010), H. 2},
  isbn      = {1610-1987},
  pages     = {175 -- 178},
  year      = {2010},
  language  = {en}
}
@article{SchifferFerreinLakemeyer2010,
  author    = {Schiffer, Stefan and Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {Proceedings of the Fourth International Conference on Intelligent Robotics and Applications (ICIRA 2011)},
  series = {Proceedings of the Fourth International Conference on Intelligent Robotics and Applications (ICIRA 2011)},
  journal   = {Proceedings of the Fourth International Conference on Intelligent Robotics and Applications (ICIRA 2011)},
  pages     = {1 -- 10},
  year      = {2010},
  language  = {en}
}
@article{BragardSoltauThomasetal.2010,
  author    = {Bragard, Michael and Soltau, N. and Thomas, S. and De Doncker, R. W.},
  title     = {The balance of renewable sources and user demands in grids : power electronics for modular battery energy storage systems},
  series = {IEEE transactions on power electronics},
  volume    = {25},
  journal   = {IEEE transactions on power electronics},
  number    = {12},
  publisher = {IEEE},
  address   = {New York},
  issn      = {0885-8993},
  doi       = {10.1109/TPEL.2010.2085455},
  pages     = {3049 -- 3056},
  year      = {2010},
  abstract  = {The continuously growing amount of renewable sources starts compromising the stability of electrical grids. Contradictory to fossil fuel power plants, energy production of wind and photovoltaic (PV) energy is fluctuating. Although predictions have significantly improved, an outage of multi-MW offshore wind farms poses a challenging problem. One solution could be the integration of storage systems in the grid. After a short overview, this paper focuses on two exemplary battery storage systems, including the required power electronics. The grid integration, as well as the optimal usage of volatile energy reserves, is presented for a 5- kW PV system for home application, as well as for a 100- MW medium-voltage system, intended for wind farm usage. The efficiency and cost of topologies are investigated as a key parameter for large-scale integration of renewable power at medium- and low-voltage.},
  language  = {en}
}
@article{SchubertScholl2011,
  author    = {Schubert, Nicole and Scholl, Ingrid},
  title     = {Comparing GPU-based multi-volume ray casting techniques},
  series = {Computer Science - Research and Development},
  volume    = {26},
  journal   = {Computer Science - Research and Development},
  number    = {12},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {1865-2042},
  pages     = {39 -- 50},
  year      = {2011},
  language  = {en}
}
@article{SchollAachDesernoetal.2011,
  author    = {Scholl, Ingrid and Aach, Til and Deserno, Thomas M. and Kuhlen, Torsten},
  title     = {Challenges of medical image processing},
  series = {Computer Science - Research and Development},
  volume    = {26},
  journal   = {Computer Science - Research and Development},
  number    = {1-2},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {1865-2042},
  pages     = {5 -- 13},
  year      = {2011},
  language  = {en}
}
@article{DesernoAachAmuntsetal.2011,
  author    = {Deserno, Thomas M. and Aach, Til and Amunts, Katrin and Hillen, Walter and Kuhlen, Torsten and Scholl, Ingrid},
  title     = {Advances in medical image processing : A special Issue on the Workshop in Aachen, Germany, March 2010},
  series = {Computer Science - Research and Development. 26 (2011), H. 1-2},
  journal   = {Computer Science - Research and Development. 26 (2011), H. 1-2},
  publisher = {springer},
  address   = {Berlin},
  isbn      = {1865-2042},
  pages     = {1 -- 3},
  year      = {2011},
  language  = {en}
}
@article{HammHartung2011,
  author    = {Hamm, Laurits and Hartung, Frank},
  title     = {High Quality Visual Communication based on IMS},
  series = {Mobilkommunikation : Technologien und Anwendungen ; Vortr{\"a}ge der 16. ITG-Fachtagung vom 18. bis 19. Mai 2011 in Osnabr{\"u}ck / Veranst.: Informationstechnische Gesellschaft im VDE (ITG) ... Tagungsleitung: Ralf T{\"o}njes. Programmkomitee/Hrsg.: Peter Roer},
  journal   = {Mobilkommunikation : Technologien und Anwendungen ; Vortr{\"a}ge der 16. ITG-Fachtagung vom 18. bis 19. Mai 2011 in Osnabr{\"u}ck / Veranst.: Informationstechnische Gesellschaft im VDE (ITG) ... Tagungsleitung: Ralf T{\"o}njes. Programmkomitee/Hrsg.: Peter Roer},
  publisher = {VDE-Verl.},
  address   = {Berlin},
  isbn      = {978-3-8007-3352-1},
  pages     = {80 -- 85},
  year      = {2011},
  language  = {en}
}
@article{HartungKesiciCatrein2011,
  author    = {Hartung, Frank and Kesici, Sinan and Catrein, Daniel},
  title     = {DRM protected Dynamic Adaptive HTTP Streaming},
  series = {Proceedings of the 2011 ACM Multimedia Systems Conference [Elektronische Ressource] : February 23 - 25, 2011, San Jose, CA, USA / sponsored by: ACM SIGMM},
  journal   = {Proceedings of the 2011 ACM Multimedia Systems Conference [Elektronische Ressource] : February 23 - 25, 2011, San Jose, CA, USA / sponsored by: ACM SIGMM},
  publisher = {ACM},
  address   = {New York, NY},
  isbn      = {9781450305181},
  pages     = {277 -- 282},
  year      = {2011},
  language  = {en}
}
@article{MausHoefkenSchuba2011,
  author    = {Maus, Stefan and H{\"o}fken, Hans-Wilhelm and Schuba, Marko},
  title     = {Forensic Analysis of Geodata in Android Smartphones},
  pages     = {1 -- 11},
  year      = {2011},
  language  = {en}
}
@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{EngelsKrauskopf2011,
  author    = {Engels, Elmar and Krauskopf, S.},
  title     = {Innovation in Motion-Logic programming - a versatile interface},
  series = {Proceedings to the 12th International Workshop on Research and Education in Mechatronics, REM 2011, Kocaeli, Turkey, 15.09.-16.09.2011},
  journal   = {Proceedings to the 12th International Workshop on Research and Education in Mechatronics, REM 2011, Kocaeli, Turkey, 15.09.-16.09.2011},
  publisher = {-},
  isbn      = {978-975-8047-96-3},
  year      = {2011},
  language  = {en}
}
@inproceedings{UsaiCorucciGligorevicetal.2011,
  author    = {Usai, Pierpaolo and Corucci, Alessandro and Gligorevic, Snjezana and Monorchio, Agostino},
  title     = {Estimation of airport surface propagation channel: ray tracing model and measurements},
  series = {Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP) : 11 - 15 April 2011, Rome, Italy},
  booktitle = {Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP) : 11 - 15 April 2011, Rome, Italy},
  organization    = {European Association on Antennas and Propagation},
  isbn      = {978-1-4577-0250-1},
  pages     = {1634 -- 1638},
  year      = {2011},
  language  = {en}
}
@inproceedings{SchneckenburgerFranzenGligorevicetal.2011,
  author    = {Schneckenburger, N. and Franzen, N. and Gligorevic, Snjezana and Schnell, M.},
  title     = {L-band compatibility of LDACS1},
  series = {IEEE/AIAA 30th Digital Avionics Systems Conference (DASC) : 16 - 20 Oct. 2011, Seattle, Wash.},
  booktitle = {IEEE/AIAA 30th Digital Avionics Systems Conference (DASC) : 16 - 20 Oct. 2011, Seattle, Wash.},
  organization    = {Institute of Electrical and Electronics Engineers},
  isbn      = {978-1-61284-797-9},
  issn      = {2155-7195},
  pages     = {4C3-1 -- 4C3-11},
  year      = {2011},
  language  = {en}
}
@inproceedings{GligorevicSchneckenburgerFranzenetal.2011,
  author    = {Gligorevic, Snjezana and Schneckenburger, N. and Franzen, N. and Schnell, Michael and M{\"u}ller, S. and G{\"u}nzel, H.},
  title     = {L-Band compatibility of LDACS1},
  series = {3rd CEAS Air and Space Conference, 24 - 28 October 2011, Venezia, Italy},
  booktitle = {3rd CEAS Air and Space Conference, 24 - 28 October 2011, Venezia, Italy},
  organization    = {European Air and Space Conference <3, 2011, Venezia>},
  pages     = {1 -- 8},
  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{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}
}
@inproceedings{SchifferFerreinLakemeyer2011,
  author    = {Schiffer, Stefan and Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {Fuzzy representations and control for domestic service robots in Golog},
  series = {Intelligent robotics and applications : 4th International conference, ICIRA 2011, Aachen, Germany, December 6-8, 2011, proceedings, part I. (Lecture notes in computer science ; 7102)},
  booktitle = {Intelligent robotics and applications : 4th International conference, ICIRA 2011, Aachen, Germany, December 6-8, 2011, proceedings, part I. (Lecture notes in computer science ; 7102)},
  isbn      = {978-3-642-25486-4},
  pages     = {241 -- 250},
  year      = {2011},
  language  = {en}
}
@article{FerreinRensMeyeretal.2011,
  author    = {Ferrein, Alexander and Rens, Gavin and Meyer, Thomas and Lakemeyer, Gerhard},
  title     = {A Logic for Specifying Partially Observable Stochastic Domains / Rens, Gavin ; Meyer, Thomas ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {Proceedings of the Ninth International Workshop pn non-Monotonic Reasoning, Action and Change (NRAC`11)},
  journal   = {Proceedings of the Ninth International Workshop pn non-Monotonic Reasoning, Action and Change (NRAC`11)},
  pages     = {15 -- 22},
  year      = {2011},
  language  = {en}
}
@inproceedings{CzarneckiWinkelmannSpiliopoulou2011,
  author    = {Czarnecki, Christian and Winkelmann, Axel and Spiliopoulou, Myra},
  title     = {Making business systems in the telecommunication industry more customer-oriented},
  series = {Information Systems Development : Business Systems and Services: Modeling and Development},
  booktitle = {Information Systems Development : Business Systems and Services: Modeling and Development},
  editor    = {Pokorny, Jaroslav and Repa, Vaclav and Richta, Karel and Wojtkowski, Wita and Linger, Henry and Barry, Chris and Lang, Michael},
  publisher = {Springer},
  address   = {New York},
  isbn      = {978-1-4419-9645-9 (Print)},
  doi       = {10.1007/978-1-4419-9790-6_14},
  pages     = {169 -- 180},
  year      = {2011},
  abstract  = {Market changes have forced telecommunication companies to transform their business. Increased competition, short innovation cycles, changed usage patterns, increased customer expectations and cost reduction are the main drivers. Our objective is to analyze to what extend transformation projects have improved the orientation towards the end-customers. Therefore, we selected 38 real-life case studies that are dealing with customer orientation. Our analysis is based on a telecommunication-specific framework that aligns strategy, business processes and information systems. The result of our analysis shows the following: transformation projects that aim to improve the customer orientation are combined with clear goals on costs and revenue of the enterprise. These projects are usually directly linked to the customer touch points, but also to the development and provisioning of products. Furthermore, the analysis shows that customer orientation is not the sole trigger for transformation. There is no one-fits-all solution; rather, improved customer orientation needs aligned changes of business processes as well as information systems related to different parts of the company.},
  language  = {en}
}
@article{ProchnowGebingLadageetal.2011,
  author    = {Prochnow, Nora and Gebing, Tina and Ladage, Kerstin and Krause-Finkeldey, Dorothee and Ourdi, Abessamad El and Bitz, Andreas and Streckert, Joachim and Hansen, Volkert and Dermietzel, Rolf},
  title     = {Electromagnetic field effect or simply stress? Effects of UMTS exposure on hippocampal longterm plasticity in the context of procedure related hormone release},
  series = {PLoS one},
  volume    = {6},
  journal   = {PLoS one},
  number    = {5},
  publisher = {PLOS},
  address   = {San Francisco},
  doi       = {10.1371/journal.pone.0019437},
  pages     = {e19437},
  year      = {2011},
  abstract  = {Harmful effects of electromagnetic fields (EMF) on cognitive and behavioural features of humans and rodents have been controversially discussed and raised persistent concern about adverse effects of EMF on general brain functions. In the present study we applied radio-frequency (RF) signals of the Universal Mobile Telecommunications System (UMTS) to full brain exposed male Wistar rats in order to elaborate putative influences on stress hormone release (corticosteron; CORT and adrenocorticotropic hormone; ACTH) and on hippocampal derived synaptic long-term plasticity (LTP) and depression (LTD) as electrophysiological hallmarks for memory storage and memory consolidation. Exposure was computer controlled providing blind conditions. Nominal brain-averaged specific absorption rates (SAR) as a measure of applied mass-related dissipated RF power were 0, 2, and 10 W/kg over a period of 120 min. Comparison of cage exposed animals revealed, regardless of EMF exposure, significantly increased CORT and ACTH levels which corresponded with generally decreased field potential slopes and amplitudes in hippocampal LTP and LTD. Animals following SAR exposure of 2 W/kg (averaged over the whole brain of 2.3 g tissue mass) did not differ from the sham-exposed group in LTP and LTD experiments. In contrast, a significant reduction in LTP and LTD was observed at the high power rate of SAR (10 W/kg). The results demonstrate that a rate of 2 W/kg displays no adverse impact on LTP and LTD, while 10 W/kg leads to significant effects on the electrophysiological parameters, which can be clearly distinguished from the stress derived background. Our findings suggest that UMTS exposure with SAR in the range of 2 W/kg is not harmful to critical markers for memory storage and memory consolidation, however, an influence of UMTS at high energy absorption rates (10 W/kg) cannot be excluded.},
  language  = {en}
}
@article{OrzadaBitzSchaeferetal.2011,
  author    = {Orzada, Stephan and Bitz, Andreas and Sch{\"a}fer, Lena C. and Ladd, Susanne C. and Ladd, Mark E. and Maderwald, Stefan},
  title     = {Open design eight-channel transmit/receive coil for high-resolution and real-time ankle imaging at 7 T},
  series = {Medical Physics},
  volume    = {38},
  journal   = {Medical Physics},
  number    = {3},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {2473-4209},
  doi       = {10.1118/1.3553399},
  pages     = {1162 -- 1167},
  year      = {2011},
  abstract  = {Purpose: At 1.5 T, real-time MRI of joint movement has been shown to be feasible. However, 7 T, provides higher SNR and thus an improved potential for parallel imaging acceleration. The purpose of this work was to build an open, U-shaped eight-channel transmit/receive microstrip coil for 7 T MRI to enable high-resolution and real-time imaging of the moving ankle joint. Methods: A U-shaped eight-channel transmit/receive array for the human ankle was built.urn:x-wiley:00942405:mp3399:equation:mp3399-math-0001-parameters and urn:x-wiley:00942405:mp3399:equation:mp3399-math-0002-factor were measured. SAR calculations of different ankle postures were performed to ensure patient safety. Inhomogeneities in the transmit field consequent to the open design were compensated for by the use of static RF shimming. High-resolution and real-time imaging was performed in human volunteers. Results: The presented array showed good performance with regard to patient comfort and image quality. High acceleration factors of up to 4 are feasible without visible acceleration artifacts. Reasonable image homogeneity was achieved with RF shimming. Conclusions: Open, noncylindrical designs for transmit/receive coils are practical at 7 T and real-time imaging of the moving joint is feasible with the presented coil design.},
  language  = {en}
}
@article{KraffBitzBreyeretal.2011,
  author    = {Kraff, Oliver and Bitz, Andreas and Breyer, Tobias and Kruszona, Stefan and Maderwald, Stefan and Brote, Irina and Gizewski, Elke R. and Ladd, Mark E. and Quick, Harald H.},
  title     = {A transmit/receive radiofrequency array for imaging the carotid arteries at 7 Tesla: coil design and first in vivo results},
  series = {Investigative Radiology},
  volume    = {46},
  journal   = {Investigative Radiology},
  number    = {4},
  publisher = {Wolters Kluwer},
  address   = {K{\"o}ln},
  issn      = {1536-0210},
  doi       = {10.1097/RLI.0b013e318206cee4},
  pages     = {246 -- 254},
  year      = {2011},
  abstract  = {Objective: To develop a transmit/receive radiofrequency (RF) array for magnetic resonance imaging (MRI) of the carotid arteries at 7 T. The prototype is characterized in numerical simulations and bench measurements, and the feasibility of plaque imaging at 7 T is demonstrated in first in vivo images. Materials and Methods: The RF phased array coil consists of 8 surface loop coils. To allow imaging of both sides of the neck, the RF array is divided into 2 coil clusters, each with 4 overlapping loop elements. For safety validation, numerical computations of the RF field distribution and the corresponding specific absorption rate were performed on the basis of a heterogeneous human body model. To validate the coil model, maps of the transmit B1+ field were compared between simulation and measurement. In vivo images of a healthy volunteer and a patient (ulcerating plaque and a 50\% stenosis of the right internal carotid artery) were acquired using a 3-dimensional FLASH sequence with a high isotropic spatial resolution of 0.54 mm as well as using pulse-triggered proton density (PD)/T2-weighted turbo spin echo sequences. Results: Measurements of the S-parameters yielded a reflection and isolation of the coil elements of better than -18 and -13 dB, respectively. Measurements of the g-factor indicated good image quality for parallel imaging acceleration factors up to 2.4. A similar distribution and a very good match of the absolute values were found between the measured and simulated B1+ transmit RF field for the validation of the coil model. In vivo images revealed good signal excitation of both sides of the neck and a high vessel-to-background image contrast for the noncontrast-enhanced 3-dimensional FLASH sequence. Imaging at 7 T could depict the extent of stenosis, and revealed the disruption and ulcer of the plaque. Conclusions: This study demonstrates that 2 four-channel transmit/receive RF arrays for each side of the neck is a suitable concept for in vivo MRI of the carotid arteries at 7 Tesla. Further studies are needed to explore and exploit the full potential of 7 T high-field MRI for carotid atherosclerotic plaque imaging.},
  language  = {en}
}
@article{ElQuardiStreckertBitzetal.2011,
  author    = {El Quardi, A. and Streckert, J. and Bitz, Andreas and M{\"u}nkner, S. and Engel, J. and Hansen, V.},
  title     = {New fin-line devices for radiofrequency exposure of small biological samples in vitro allowing whole-cell patch clamp recordings},
  series = {Bioelectromagnetics},
  volume    = {32},
  journal   = {Bioelectromagnetics},
  number    = {2},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1521-186X},
  doi       = {10.1002/bem.20621},
  pages     = {102 -- 112},
  year      = {2011},
  abstract  = {The development and analysis of three waveguides for the exposure of small biological in vitro samples to mobile communication signals at 900 MHz (GSM, Global System for Mobile Communications), 1.8 GHz (GSM), and 2 GHz (UMTS, Universal Mobile Telecommunications System) is presented. The waveguides were based on a fin-line concept and the chamber containing the samples bathed in extracellular solution was placed onto two fins with a slot in between, where the exposure field concentrates. Measures were taken to allow for patch clamp recordings during radiofrequency (RF) exposure. The necessary power for the achievement of the maximum desired specific absorption rate (SAR) of 20 W/kg (average over the mass of the solution) was approximately Pin = 50 mW, Pin = 19 mW, and Pin = 18 mW for the 900 MHz, 1800 MHz, and 2 GHz devices, respectively. At 20 W/kg, a slight RF-induced temperature elevation in the solution of no more than 0.3 °C was detected, while no thermal offsets due to the electromagnetic exposure could be detected at the lower SAR settings (2, 0.2, and 0.02 W/kg). A deviation of 10\% from the intended solution volume yielded a calculated SAR deviation of 8\% from the desired value. A maximum ±10\% variation in the local SAR could occur when the position of the patch clamp electrode was altered within the area where the cells to be investigated were located.},
  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{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}
}
@article{GspandlPillReipetal.2011,
  author    = {Gspandl, Stephan and Pill, Ingo and Reip, Michael and Steinbauer, Gerald and Ferrein, Alexander},
  title     = {Belief Management for High-Level Robot Programs},
  series = {Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence [electronic resource] : Barcelona, Catalonia, Spain, 16 - 22 July 2011 / sponsored by International Joint Conferences on Artificial Intelligence (IJCAI) and the Association for the Advancement of Artificial Intelligence (AAAI). Ed. by Toby Walsh},
  journal   = {Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence [electronic resource] : Barcelona, Catalonia, Spain, 16 - 22 July 2011 / sponsored by International Joint Conferences on Artificial Intelligence (IJCAI) and the Association for the Advancement of Artificial Intelligence (AAAI). Ed. by Toby Walsh},
  pages     = {900 -- 905},
  year      = {2011},
  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}
}
@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}
}
@inproceedings{BragardGottschlichDeDoncker2011,
  author    = {Bragard, Michael and Gottschlich, J. and De Doncker, R. W.},
  title     = {Design and realization of a credit card size driver stage for high power thyristor based devices with integrated MOS structure},
  series = {2011 IEEE 8th International Conference on Power Electronics and ECCE Asia (ICPE \& ECCE 2011) : Jeju, South Korea, 30 May 2011 - 3 June 2011 / [co-sponsored by the Korean Institute of Power Electronics ...]},
  booktitle = {2011 IEEE 8th International Conference on Power Electronics and ECCE Asia (ICPE \& ECCE 2011) : Jeju, South Korea, 30 May 2011 - 3 June 2011 / [co-sponsored by the Korean Institute of Power Electronics ...]},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {978-1-61284-958-4 (Print)},
  doi       = {10.1109/ICPE.2011.5944661},
  pages     = {1182 -- 1189},
  year      = {2011},
  language  = {en}
}
@article{MartinFrauenrathOezerdemetal.2011,
  author    = {Martin, Conrad and Frauenrath, Tobias and {\"O}zerdem, Celal and Renz, Wolfgang and Niendorf, Thoralf},
  title     = {Development and evaluation of a small and mobile Magneto Alert Sensor (MALSE) to support safety requirements for magnetic resonance imaging},
  series = {European Radiology},
  volume    = {21},
  journal   = {European Radiology},
  publisher = {Springer},
  address   = {Berlin, Heidelberg},
  issn      = {1432-1084},
  doi       = {10.1007/s00330-011-2153-z},
  pages     = {2187 -- 2192},
  year      = {2011},
  abstract  = {Objective The purpose of this study is to (i) design a small and mobile Magnetic field ALert SEnsor (MALSE), (ii) to carefully evaluate its sensors to their consistency of activation/deactivation and sensitivity to magnetic fields, and (iii) to demonstrate the applicability of MALSE in 1.5 T, 3.0 T and 7.0 T MR fringe field environments. Methods MALSE comprises a set of reed sensors, which activate in response to their exposure to a magnetic field. The activation/deactivation of reed sensors was examined by moving them in/out of the fringe field generated by 7TMR. Results The consistency with which individual reed sensors would activate at the same field strength was found to be 100\% for the setup used. All of the reed switches investigated required a substantial drop in ambient magnetic field strength before they deactivated. Conclusions MALSE is a simple concept for alerting MRI staff to a ferromagnetic object being brought into fringe magnetic fields which exceeds MALSEs activation magnetic field. MALSE can easily be attached to ferromagnetic objects within the vicinity of a scanner, thus creating a barrier for hazardous situations induced by ferromagnetic parts which should not enter the vicinity of an MR-system to occur.},
  language  = {en}
}
@article{DieringerRenzLindeletal.2011,
  author    = {Dieringer, Matthias A. and Renz, Wolfgang and Lindel, Tomasz D. and Seifert, Frank and Frauenrath, Tobias and von Knobelsdorf-Brenkenhoff, Florian and Waiczies, Helmar and Hoffmann, Werner and Rieger, Jan and Pfeiffer, Harald and Ittermann, Bernd and Schulz-Menger, Jeanette and Niendorf, Thoralf},
  title     = {Design and application of a four-channel transmit/receive surface coil for functional cardiac imaging at 7T},
  series = {Journal of Magnetic Resonance Imaging},
  volume    = {33},
  journal   = {Journal of Magnetic Resonance Imaging},
  number    = {3},
  publisher = {Wiley-Liss},
  address   = {New York},
  issn      = {1522-2586},
  doi       = {10.1002/jmri.22451},
  pages     = {736 -- 741},
  year      = {2011},
  abstract  = {Purpose To design and evaluate a four-channel cardiac transceiver coil array for functional cardiac imaging at 7T. Materials and Methods A four-element cardiac transceiver surface coil array was developed with two rectangular loops mounted on an anterior former and two rectangular loops on a posterior former. specific absorption rate (SAR) simulations were performed and a Burn:x-wiley:10531807:media:JMRI22451:tex2gif-stack-1 calibration method was applied prior to obtain 2D FLASH CINE (mSENSE, R = 2) images from nine healthy volunteers with a spatial resolution of up to 1 × 1 × 2.5 mm3. Results Tuning and matching was found to be better than 10 dB for all subjects. The decoupling (S21) was measured to be >18 dB between neighboring loops, >20 dB for opposite loops, and >30 dB for other loop combinations. SAR values were well within the limits provided by the IEC. Imaging provided clinically acceptable signal homogeneity with an excellent blood-myocardium contrast applying the Burn:x-wiley:10531807:media:JMRI22451:tex2gif-stack-2 calibration approach. Conclusion A four-channel cardiac transceiver coil array for 7T was built, allowing for cardiac imaging with clinically acceptable signal homogeneity and an excellent blood-myocardium contrast. Minor anatomic structures, such as pericardium, mitral, and tricuspid valves and their apparatus, as well as trabeculae, were accurately delineated.},
  language  = {en}
}
@inproceedings{DammRitzStrauch2011,
  author    = {Damm, Sebastian and Ritz, Thomas and Strauch, Jakob},
  title     = {Adaption of archetype patterns for mobile cloud-based business apps},
  series = {2011 IEEE International Conference on Pervasive Computing and Communications workshops (PerCom workshops 2011) : Seattle, Washington, USA, 21 - 25 March 2011},
  booktitle = {2011 IEEE International Conference on Pervasive Computing and Communications workshops (PerCom workshops 2011) : Seattle, Washington, USA, 21 - 25 March 2011},
  publisher = {IEEE Service Center},
  address   = {Piscataway, NJ},
  isbn      = {978-1-61284-938-6 (Print)},
  doi       = {10.1109/PERCOMW.2011.5766849},
  pages     = {100 -- 105},
  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}
}