TY  - JOUR
A1  - Frauenrath, Tobias
A1  - Niendorf, Thoralf
A1  - Kob, Malte
T1  - Acoustic method for synchronization of Magnetic Resonance Imaging (MRI)
JF  - Acta Acustica
N2  - Magnetic Resonance Imaging (MRI) of moving organs requires synchronization with physiological motion or flow, which dictate the viable window for data acquisition. To meet this challenge, this study proposes an acoustic gating device (ACG) that employs acquisition and processing of acoustic signals for synchronization while providing MRI compatibility, immunity to interferences with electro-magnetic and acoustic fields and suitability for MRI at high magnetic field strengths. The applicability and robustness of the acoustic gating approach is examined in a pilot study, where it substitutes conventional ECG-gating for cardiovascular MR. The merits and limitations of the ACG approach are discussed. Implications for MR imaging in the presence of physiological motion are considered including synchronization with other structure- or motion borne sounds.
Y1  - 2008
U6  - https://doi.org/10.3813/AAA.918017
SN  - 1861-9959
VL  - 94
IS  - 1
SP  - 148
EP  - 155
PB  - Hirzel
CY  - Stuttgart
ER  - 
TY  - JOUR
A1  - Claer, Mario
A1  - Ferrein, Alexander
A1  - Schiffer, Stefan
T1  - Calibration of a Rotating or Revolving Platform with a LiDAR Sensor
JF  - Applied Sciences
Y1  - 2019
U6  - https://doi.org/10.3390/app9112238
SN  - 2076-3417
VL  - Volume 9
IS  - issue 11, 2238
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Sadeghfam, Arash
A1  - Boehm, H.
T1  - Ultra Compact Multi-Mode Filter with Novel Rat-Race Inductor. Sadeghfam, Arash; Heuermann, Holger; Boehm, H.
JF  - Conference proceedings : 3 - 7 October 2005, CNIT la Défense, Paris, France; [comprises the] 35th European Microwave Conference 2005 ; The European Conference on Wireless Technology 2005 ; European Radar Conference 2005 ; GAAS 2005, The European Gallium A. Vol. 2
Y1  - 2005
SN  - 2-9600551-0-1
N1  - European Microwave Conference ; (35, 2005, Paris) ; European Microwave Week ; (2005, Paris)
SP  - 4 pp.
PB  - Horizon House Publ
CY  - London
ER  - 
TY  - JOUR
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Proceedings of the Fourth International Conference on Intelligent Robotics and Applications (ICIRA 2011)
JF  - Proceedings of the Fourth International Conference on Intelligent Robotics and Applications (ICIRA 2011)
Y1  - 2010
SP  - 1
EP  - 10
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, Burkhard
T1  - LNN( Line-Network-Network): The In-Fixture Calibration Procedure
Y1  - 1993
N1  - XXIVth General Assembly of the International URSI, Kyoto
SP  - 149
EP  - 149
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, Burkhard
T1  - A Generalization of the Txx Network Analyzer Self-Calibration Procedure
JF  - Conference proceedings : monday 24th to thursday 27th august 1992, Helsinki University of Technology, Espoo, Finland ; [the international conference and exhibition designed for the Microwave Community]. Vol. 2
Y1  - 1992
SN  - 0-946821-77-1
N1  - European Microwave Conference <22, 1992, Espoo> ; Teknillinen Korkeakoulu <Helsinki>
SP  - 907
EP  - 912
PB  - Microwave Exhibitions and Publishers
CY  - Tunbridge Wells
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, B.
T1  - 15-term self-calibration methods for the error-correction of on-wafer measurements
JF  - IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 46 (1997), H. 5
Y1  - 1997
SN  - 0018-9456
SP  - 1105
EP  - 1110
ER  - 
TY  - JOUR
A1  - Wolf, Martin R.
A1  - Luczak, Holger
A1  - Springer, J.
A1  - Simon, S.
ED  - Miyamoto, Hiroyuki
T1  - The role of metaphors in computer supported cooperative work
JF  - Proceedings of WWDU '97 Tokyo, Fifth International Scientific Conference on Work with Display Units : November 3 - 5, 1997, Tokyo /
Y1  - 1997
N1  - International Scientific Conference on Work with Display Units ; International Scientific Conference on Work with Display Units ; (5 ; 1997.11.03-05 ; Tokyo)
SP  - 191
EP  - 192
PB  - -
CY  - Tokyo
ER  - 
TY  - JOUR
A1  - Steinbauer, Gerald
A1  - Ferrein, Alexander
T1  - 20 Years of RoboCup
JF  - KI - Künstliche Intelligenz
Y1  - 2016
U6  - https://doi.org/10.1007/s13218-016-0442-z
SN  - 1610-1987
VL  - 30
IS  - 3-4
SP  - 221
EP  - 224
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Fritz, Christian
A1  - Lakemeyer, Gerhard
T1  - Extending DTGOLOG with Options / Ferrein, Alexander ; Fritz, Christian ; Lakemeyer, Gerhard
JF  - IJCAI-03, Proceedings of the Eighteenth International Joint Conference on Artificial Intelligence, Acapulco, Mexico, August 9-15, 2003
Y1  - 2003
SP  - 1391
EP  - 1393
ER  -