@article{HeuermannBaumannFauthetal.1994,
  author    = {Heuermann, Holger and Baumann, F.-M. and Fauth, G. and Albert, M.},
  title     = {Results of Network Analyzer Measurements with Leakage Errors Corrected with the TMS-15-Term Procedure},
  series = {On-Line Moisture Analysis of Raw Coal},
  journal   = {On-Line Moisture Analysis of Raw Coal},
  pages     = {1361 -- 1364},
  year      = {1994},
  language  = {en}
}
@article{HeuermannSchiek1997,
  author    = {Heuermann, Holger and Schiek, B.},
  title     = {Results of network analyzer measurements with leakage errors-corrected with direct calibration techniques},
  series = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 46 (1997), H. 5},
  journal   = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 46 (1997), H. 5},
  isbn      = {0018-9456},
  pages     = {1120 -- 1127},
  year      = {1997},
  language  = {en}
}
@article{HagemannHennings1981,
  author    = {Hagemann, Hans-J{\"u}rgen and Hennings, D.},
  title     = {Reversible Weight change of acceptor-doped BaTiO3. Hagemann, H. J.; Hennings, D.},
  series = {Journal of the American Ceramic Society. 64 (1981)},
  journal   = {Journal of the American Ceramic Society. 64 (1981)},
  isbn      = {0002-7820},
  pages     = {590 -- 594},
  year      = {1981},
  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{HansenBitzStreckert1999,
  author    = {Hansen, Volkert W. and Bitz, Andreas and Streckert, Joachim R.},
  title     = {RF Exposure of Biological Systems in Radial Waveguides},
  series = {IEEE Transactions on Electromagnetic Compatibility},
  volume    = {41},
  journal   = {IEEE Transactions on Electromagnetic Compatibility},
  number    = {4},
  issn      = {1558-187X},
  doi       = {10.1109/15.809852},
  pages     = {487 -- 493},
  year      = {1999},
  language  = {en}
}
@article{FiedlerLaddBitz2017,
  author    = {Fiedler, Thomas M. and Ladd, Mark E. and Bitz, Andreas},
  title     = {RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus temperature limits},
  series = {Medical Physics},
  volume    = {44},
  journal   = {Medical Physics},
  number    = {1},
  doi       = {10.1002/mp.12034},
  pages     = {143 -- 157},
  year      = {2017},
  language  = {en}
}
@article{SammFaissnerHeinrigsetal.1983,
  author    = {Samm, Doris and Faissner, H. and Heinrigs, W. and Latsch, C.},
  title     = {Richtungsselektive Z{\"a}hleranordnung zur Messung der Masse Axion-{\"a}hnlicher Teilchen / Faissner, H. ; Heinrigs, W. ; Latsch, C.; Preussger, A.; Samm, D.},
  series = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 18 (1983), H. 6},
  journal   = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 18 (1983), H. 6},
  pages     = {1213 -- 1213},
  year      = {1983},
  language  = {de}
}
@article{Wolf2003,
  author    = {Wolf, Martin},
  title     = {Risiko- und Maßnahmenmanagement bei der Computervalidierung},
  series = {Pharma-Technologie-Journal (2003)},
  journal   = {Pharma-Technologie-Journal (2003)},
  publisher = {-},
  isbn      = {0931-9700},
  pages     = {50 -- 62},
  year      = {2003},
  language  = {de}
}
@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{FerreinSteinbauerMcPhillipsetal.2008,
  author    = {Ferrein, Alexander and Steinbauer, Gerald and McPhillips, Graeme and Potgieter, Anet},
  title     = {RoboCup Standard Platform League - Team Zadeat : an intercontinental research effort},
  pages     = {1 -- 7},
  year      = {2008},
  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{FerreinLakemeyer2006,
  author    = {Ferrein, Alexander and Lakemeyer, Gerhard},
  title     = {Roboterfußball - Wissenschaft, die auch Spass macht / Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {RWTH Themen (2006)},
  journal   = {RWTH Themen (2006)},
  isbn      = {0179-079X},
  pages     = {36 -- 39},
  year      = {2006},
  language  = {de}
}
@article{HeuermannSchiek1994,
  author    = {Heuermann, Holger and Schiek, B.},
  title     = {Robust Algorithms for Txx Network Analyzer Self-Calibration Procedures},
  series = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 43 (1994), H. 1},
  journal   = {IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 43 (1994), H. 1},
  isbn      = {0018-9456},
  pages     = {18 -- 23},
  year      = {1994},
  language  = {en}
}
@article{FerreinJacobsSchifferetal.2009,
  author    = {Ferrein, Alexander and Jacobs, Stefan and Schiffer, Stefan and Beck, Daniel},
  title     = {Robust Collision Avoidance in Unknown Domestic Environments / Jacobs, Stefan ; Ferrein, Alexander ; Schiffer, Stefan ; Beck, Daniel ; Lakemeyer, Gerhard},
  series = {ROBOCUP 2009: ROBOT SOCCER WORLD CUP XIII},
  journal   = {ROBOCUP 2009: ROBOT SOCCER WORLD CUP XIII},
  publisher = {Springer},
  address   = {Berlin},
  pages     = {116 -- 127},
  year      = {2009},
  language  = {en}
}
@article{KrauseForsythPeter1993,
  author    = {Krause, Gregor and Forsyth, Paul A. and Peter, Till},
  title     = {Robuste Filter in der Energieversorgung / Paul A. Forsyth, Gregor Krause, Till Peter},
  series = {ETZ. 114 (1993), H. 22},
  journal   = {ETZ. 114 (1993), H. 22},
  pages     = {1382 -- 1385},
  year      = {1993},
  language  = {de}
}
@article{HeuermannSchiek1991,
  author    = {Heuermann, Holger and Schiek, Burkhard},
  title     = {Robuster Algorithmus zur Streuparameterbestimmung f{\"u}r systemfehlerkorrigierte Netzwerkanalysatoren},
  series = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 35. 1991 (1991)},
  journal   = {Kleinheubacher Berichte : Vortr{\"a}ge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 35. 1991 (1991)},
  pages     = {555 -- 556},
  year      = {1991},
  language  = {de}
}
@article{Huening2008,
  author    = {H{\"u}ning, Felix},
  title     = {Robusti affidabili per le Sfide dell'automotive},
  series = {Selezione di Elettronica (2008)},
  journal   = {Selezione di Elettronica (2008)},
  publisher = {-},
  pages     = {116 -- 117},
  year      = {2008},
  language  = {de}
}
@article{HartungBaldoHornetal.2004,
  author    = {Hartung, Frank and Baldo, N. and Horn, U. and Kampmann, M.},
  title     = {RTCP feedback based transmission rate control for 3G wireless multimedia streaming / Baldo, N. ; Horn, U. ; Kampmann, M. ; Hartung, F. ;},
  series = {15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. Date:5-8 Sept. 2004 ; Vol. 3},
  journal   = {15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. Date:5-8 Sept. 2004 ; Vol. 3},
  pages     = {1817 -- 1821},
  year      = {2004},
  language  = {en}
}
@article{FiedlerLaddClemensetal.2020,
  author    = {Fiedler, Thomas M. and Ladd, Mark E. and Clemens, Markus and Bitz, Andreas},
  title     = {Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging},
  series = {IEEE Letters on Electromagnetic Compatibility Practice and Applications},
  volume    = {2},
  journal   = {IEEE Letters on Electromagnetic Compatibility Practice and Applications},
  number    = {3},
  publisher = {IEEE},
  address   = {New York, NY},
  isbn      = {2637-6423},
  doi       = {10.1109/LEMCPA.2020.3029747},
  pages     = {1 -- 8},
  year      = {2020},
  abstract  = {Magnetic resonance imaging (MRI) is one of the most important medical imaging techniques. Since the introduction of MRI in the mid-1980s, there has been a continuous trend toward higher static magnetic fields to obtain i.a. a higher signal-to-noise ratio. The step toward ultra-high-field (UHF) MRI at 7 Tesla and higher, however, creates several challenges regarding the homogeneity of the spin excitation RF transmit field and the RF exposure of the subject. In UHF MRI systems, the wavelength of the RF field is in the range of the diameter of the human body, which can result in inhomogeneous spin excitation and local SAR hotspots. To optimize the homogeneity in a region of interest, UHF MRI systems use parallel transmit systems with multiple transmit antennas and time-dependent modulation of the RF signal in the individual transmit channels. Furthermore, SAR increases with increasing field strength, while the SAR limits remain unchanged. Two different approaches to generate the RF transmit field in UHF systems using antenna arrays close and remote to the body are investigated in this letter. Achievable imaging performance is evaluated compared to typical clinical RF transmit systems at lower field strength. The evaluation has been performed under consideration of RF exposure based on local SAR and tissue temperature. Furthermore, results for thermal dose as an alternative RF exposure metric are presented.},
  language  = {en}
}
@article{FiedlerLaddBitz2017,
  author    = {Fiedler, Thomas M. and Ladd, Mark E. and Bitz, Andreas},
  title     = {SAR Simulations \& Safety},
  series = {NeuroImage},
  journal   = {NeuroImage},
  number    = {Epub ahead of print},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1053-8119},
  doi       = {10.1016/j.neuroimage.2017.03.035},
  year      = {2017},
  language  = {en}
}