@inproceedings{RitzIzquierdoTelloDamm2014,
  author    = {Ritz, Thomas and Izquierdo Tello, C{\´e}sar and Damm, Sebastian},
  title     = {Connecting a pedelec to the cloud as basis for gamification in multi modal mobility planning},
  series = {MobileCloud 2014 : 2nd IEEE International Conference on Mobile Cloud Computing, Services, and Engineering Oxford, United Kingdom 7-10 April 2014},
  booktitle = {MobileCloud 2014 : 2nd IEEE International Conference on Mobile Cloud Computing, Services, and Engineering Oxford, United Kingdom 7-10 April 2014},
  publisher = {IEEE Service Center},
  address   = {Piscataway, NJ},
  isbn      = {978-1-4799-2504-9},
  doi       = {10.1109/MobileCloud.2014.25},
  pages     = {101 -- 108},
  year      = {2014},
  language  = {en}
}
@article{FrauenrathFuchsDieringeretal.2012,
  author    = {Frauenrath, Tobias and Fuchs, Katharina and Dieringer, Matthias A. and {\"O}zerdem, Celal and Patel, Nishan and Renz, Wolfgang and Greiser, Andreas and Elgeti, Thomas and Niendorf, Thoralf},
  title     = {Detailing the use of magnetohydrodynamic effects for synchronization of MRI with the cardiac cycle: A feasibility study},
  series = {Journal of Magnetic Resonance Imaging},
  volume    = {36},
  journal   = {Journal of Magnetic Resonance Imaging},
  number    = {2},
  publisher = {Wiley-Liss},
  address   = {New York},
  issn      = {1522-2586},
  doi       = {10.1002/jmri.23634},
  pages     = {364 -- 372},
  year      = {2012},
  abstract  = {Purpose: To investigate the feasibility of using magnetohydrodynamic (MHD) effects for synchronization of magnetic resonance imaging (MRI) with the cardiac cycle. Materials and Methods: The MHD effect was scrutinized using a pulsatile flow phantom at B0 = 7.0 T. MHD effects were examined in vivo in healthy volunteers (n = 10) for B0 ranging from 0.05-7.0 T. Noncontrast-enhanced MR angiography (MRA) of the carotids was performed using a gated steady-state free-precession (SSFP) imaging technique in conjunction with electrocardiogram (ECG) and MHD synchronization. Results: The MHD potential correlates with flow velocities derived from phase contrast MRI. MHD voltages depend on the orientation between B0 and the flow of a conductive fluid. An increase in the interelectrode spacing along the flow increases the MHD potential. In vivo measurement of the MHD effect provides peak voltages of 1.5 mV for surface areas close to the common carotid artery at B0 = 7.0 T. Synchronization of MRI with the cardiac cycle using MHD triggering is feasible. MHD triggered MRA of the carotids at 3.0 T showed an overall image quality and richness of anatomic detail, which is comparable to ECG-triggered MRAs. Conclusion: This feasibility study demonstrates the use of MHD effects for synchronization of MR acquisitions with the cardiac cycle. J. Magn. Reson. Imaging 2012;36:364-372. © 2012 Wiley Periodicals, Inc.},
  language  = {en}
}
@inproceedings{WittigRuettersBragard2024,
  author    = {Wittig, M. and R{\"u}tters, Ren{\´e} and Bragard, Michael},
  title     = {Application of RL in control systems using the example of a rotatory inverted pendulum},
  series = {Tagungsband AALE 2024 : Fit f{\"u}r die Zukunft: praktische L{\"o}sungen f{\"u}r die industrielle Automation},
  booktitle = {Tagungsband AALE 2024 : Fit f{\"u}r die Zukunft: praktische L{\"o}sungen f{\"u}r die industrielle Automation},
  editor    = {Reiff-Stephan, J{\"o}rg and J{\"a}kel, Jens and Schwarz, Andr{\´e}},
  publisher = {le-tex publishing services GmbH},
  address   = {Leipzig},
  isbn      = {978-3-910103-02-3},
  doi       = {10.33968/2024.53},
  pages     = {241 -- 248},
  year      = {2024},
  abstract  = {In this paper, the use of reinforcement learning (RL) in control systems is investigated using a rotatory inverted pendulum as an example. The control behavior of an RL controller is compared to that of traditional LQR and MPC controllers. This is done by evaluating their behavior under optimal conditions, their disturbance behavior, their robustness and their development process. All the investigated controllers are developed using MATLAB and the Simulink simulation environment and later deployed to a real pendulum model powered by a Raspberry Pi. The RL algorithm used is Proximal Policy Optimization (PPO). The LQR controller exhibits an easy development process, an average to good control behavior and average to good robustness. A linear MPC controller could show excellent results under optimal operating conditions. However, when subjected to disturbances or deviations from the equilibrium point, it showed poor performance and sometimes instable behavior. Employing a nonlinear MPC Controller in real time was not possible due to the high computational effort involved. The RL controller exhibits by far the most versatile and robust control behavior. When operated in the simulation environment, it achieved a high control accuracy. When employed in the real system, however, it only shows average accuracy and a significantly greater performance loss compared to the simulation than the traditional controllers. With MATLAB, it is not yet possible to directly post-train the RL controller on the Raspberry Pi, which is an obstacle to the practical application of RL in a prototyping or teaching setting. Nevertheless, RL in general proves to be a flexible and powerful control method, which is well suited for complex or nonlinear systems where traditional controllers struggle.},
  language  = {en}
}
@article{GraesslRenzHezeletal.2013,
  author    = {Gr{\"a}ßl, Andreas and Renz, Wolfgang and Hezel, Fabian and Dieringer, Matthias A. and Winter, Lukas and {\"O}zerdem, Celal and Rieger, Jan and Kellmann, Peter and Santoro, Davide and Lindel, Tomasz D. and Frauenrath, Tobias and Pfeiffer, Harald and Niendorf, Thoralf},
  title     = {Modular 32-channel transceiver coil array for cardiac MRI at 7.0T},
  series = {Magnetic Resonance in Medicine},
  volume    = {72},
  journal   = {Magnetic Resonance in Medicine},
  number    = {1},
  publisher = {Wiley-Liss},
  address   = {New York},
  issn      = {1522-2594},
  doi       = {10.1002/mrm.24903},
  pages     = {276 -- 290},
  year      = {2013},
  abstract  = {Purpose To design and evaluate a modular transceiver coil array with 32 independent channels for cardiac MRI at 7.0T. Methods The modular coil array comprises eight independent building blocks, each containing four transceiver loop elements. Numerical simulations were used for B1+ field homogenization and radiofrequency (RF) safety validation. RF characteristics were examined in a phantom study. The array's suitability for accelerated high spatial resolution two-dimensional (2D) FLASH CINE imaging of the heart was examined in a volunteer study. Results Transmission field adjustments and RF characteristics were found to be suitable for the volunteer study. The signal-to-noise intrinsic to 7.0T together with the coil performance afforded a spatial resolution of 1.1 × 1.1 × 2.5 mm3 for 2D CINE FLASH MRI, which is by a factor of 6 superior to standardized CINE protocols used in clinical practice at 1.5T. The 32-channel transceiver array supports one-dimensional acceleration factors of up to R = 4 without impairing image quality significantly. Conclusion The modular 32-channel transceiver cardiac array supports accelerated and high spatial resolution cardiac MRI. The array is compatible with multichannel transmission and provides a technological basis for future clinical assessment of parallel transmission techniques at 7.0T.},
  language  = {en}
}
@inproceedings{KramerBragardRitzetal.2024,
  author    = {Kramer, Pia and Bragard, Michael and Ritz, Thomas and Ferfer, Ute and Schiffers, Tim},
  title     = {Visualizing, Enhancing and Predicting Students' Success through ECTS Monitoring},
  series = {2024 IEEE Global Engineering Education Conference (EDUCON)},
  booktitle = {2024 IEEE Global Engineering Education Conference (EDUCON)},
  publisher = {IEEE},
  address   = {New York, NY},
  issn      = {2165-9559},
  doi       = {10.1109/EDUCON60312.2024.10578652},
  pages     = {5 Seiten},
  year      = {2024},
  abstract  = {This paper serves as an introduction to the ECTS monitoring system and its potential applications in higher education. It also emphasizes the potential for ECTS monitoring to become a proactive system, supporting students by predicting academic success and identifying groups of potential dropouts for tailored support services. The use of the nearest neighbor analysis is suggested for improving data analysis and prediction accuracy.},
  language  = {en}
}
@incollection{SchultLosseCzarneckietal.2023,
  author    = {Schult, Prince Garcia and Losse, Ann-Kathrin and Czarnecki, Christian and Sultanow, Eldar},
  title     = {Proposing a Framework to address the Sustainable Development Goals},
  series = {EnviroInfo 2023},
  booktitle = {EnviroInfo 2023},
  publisher = {GI - Gesellschaft f{\"u}r Informatik},
  address   = {Bonn},
  isbn      = {978-3-88579-736-4},
  issn      = {1617-5468},
  doi       = {10.18420/env2023-022},
  pages     = {243 -- 249},
  year      = {2023},
  abstract  = {Reducing poverty, protecting the planet, and improving life on earth for everyone are the essential goals of the "2030 Agenda for Sustainable Development"committed by the United Nations (UN). Achieving those goals will require technological innovation as well as their implementation in almost all areas of our business and day-to-day life. This paper proposes a high-level framework that collects and structures different uses cases addressing the goals defined by the UN. Hence, it contributes to the discussion by proposing technical innovations that can be used to achieve those goals. As an example, the goal "Climate Action{\"i}s discussed in detail by describing use cases related to tackling biodiversity loss in order to conservate ecosystems.},
  language  = {en}
}
@inproceedings{BuxbaumHessRingbeck2001,
  author    = {Buxbaum, Bernd and Hess, Holger and Ringbeck, Thorsten},
  title     = {The photonic mixer device : new perspectives in optical wireless communication},
  series = {International Workshop on Optical MEMS and Integrated Optics : Universit{\"a}t Dortmund, Universit{\"a}tskolleg Bommerholz, 11. \& 12. June 2001},
  booktitle = {International Workshop on Optical MEMS and Integrated Optics : Universit{\"a}t Dortmund, Universit{\"a}tskolleg Bommerholz, 11. \& 12. June 2001},
  editor    = {Voges, Edgar},
  publisher = {Univ.},
  address   = {Dortmund},
  pages     = {(12)1 -- (12)5},
  year      = {2001},
  language  = {en}
}
@inproceedings{RingbeckAlbrechtFrey2003,
  author    = {Ringbeck, Thorsten and Albrecht, M. and Frey, J.},
  title     = {Time-of-Flight 3D-camera for autonomous navigation and industrial automation},
  series = {Proceedings : 11th international conference, 13 - 15 May 2003, Exhibition Centre Nuremberg, Germany ; an event of the Association for Sensor Technology, AMA},
  booktitle = {Proceedings : 11th international conference, 13 - 15 May 2003, Exhibition Centre Nuremberg, Germany ; an event of the Association for Sensor Technology, AMA},
  editor    = {Lerch, Reinhard},
  edition   = {CD-ROM-Ausg.},
  publisher = {AMA Service},
  address   = {Wunstorf/Germany},
  year      = {2003},
  language  = {en}
}
@inproceedings{HagebeukerRingbeckFrydlewiczetal.2007,
  author    = {Hagebeuker, Bianca and Ringbeck, Thorsten and Frydlewicz, Paul and Jesorsky, Oliver and S{\"u}nkel, Thomas},
  title     = {PMD-Sensoren als Schl{\"u}sselkomponenten f{\"u}r die mehrdimensionale Umfelderfassung des Fahrzeuginnenraums},
  series = {Begleittexte zum Entwicklerforum KFZ-Elektronik \& FlexRay Solution Day : 15.Mai 2007, Ludwigsburg},
  booktitle = {Begleittexte zum Entwicklerforum KFZ-Elektronik \& FlexRay Solution Day : 15.Mai 2007, Ludwigsburg},
  editor    = {Grote, Caspar},
  publisher = {WEKA-Fachzeitschr.-Verl.},
  address   = {Poing},
  pages     = {287 -- 296},
  year      = {2007},
  language  = {en}
}
@inproceedings{GrothofSchwarteBuxbaumetal.2002,
  author    = {Grothof, M. and Schwarte, Rudolf and Buxbaum, Bernd and Ringbeck, Thorsten},
  title     = {Product monitoring with MSM-PMD-Array},
  series = {Proceedings / OPTO 2002 : an event of the Association for Sensor Technology AMA ; 14 - 16 May 2002, Exhibition Centre Erfurt, Germany / International Conference Optoelectronics, Optical Sensors \& Measuring Techniques},
  booktitle = {Proceedings / OPTO 2002 : an event of the Association for Sensor Technology AMA ; 14 - 16 May 2002, Exhibition Centre Erfurt, Germany / International Conference Optoelectronics, Optical Sensors \& Measuring Techniques},
  editor    = {Wagner, Elmar},
  publisher = {AMA Service GmbH},
  address   = {Wunsdorf},
  pages     = {41 -- 47},
  year      = {2002},
  language  = {en}
}