@article{SommerBitzStreckertetal.2007, author = {Sommer, Angela M. and Bitz, Andreas and Streckert, Joachim and Hansen, Volkert W. and Lerchl, Alexander}, title = {Lymphoma development in mice chronically exposed to UMTS-modulated radiofrequency electromagnetic fields}, series = {Radiation Research}, volume = {168}, journal = {Radiation Research}, number = {1}, issn = {1938-5404}, doi = {10.1667/RR0857.1}, pages = {72 -- 80}, year = {2007}, language = {en} } @article{Heuermann1995, author = {Heuermann, Holger}, title = {LZY: A Self-Calibration Approach in Competition to the LRM Method for On-Wafer Measurements}, pages = {129 -- 136}, year = {1995}, language = {en} } @incollection{StengerAltherrAbel2019, author = {Stenger, David and Altherr, Lena and Abel, Dirk}, title = {Machine learning and metaheuristics for black-box optimization of product families: a case-study investigating solution quality vs. computational overhead}, series = {Operations Research Proceedings 2018}, booktitle = {Operations Research Proceedings 2018}, publisher = {Springer}, address = {Cham}, isbn = {978-3-030-18499-5 (Print)}, doi = {10.1007/978-3-030-18500-8_47}, pages = {379 -- 385}, year = {2019}, abstract = {In product development, numerous design decisions have to be made. Multi-domain virtual prototyping provides a variety of tools to assess technical feasibility of design options, however often requires substantial computational effort for just a single evaluation. A special challenge is therefore the optimal design of product families, which consist of a group of products derived from a common platform. Finding an optimal platform configuration (stating what is shared and what is individually designed for each product) and an optimal design of all products simultaneously leads to a mixed-integer nonlinear black-box optimization model. We present an optimization approach based on metamodels and a metaheuristic. To increase computational efficiency and solution quality, we compare different types of Gaussian process regression metamodels adapted from the domain of machine learning, and combine them with a genetic algorithm. We illustrate our approach on the example of a product family of electrical drives, and investigate the trade-off between solution quality and computational overhead.}, language = {en} } @inproceedings{NikolovskiRekeElsenetal.2021, author = {Nikolovski, Gjorgji and Reke, Michael and Elsen, Ingo and Schiffer, Stefan}, title = {Machine learning based 3D object detection for navigation in unstructured environments}, series = {2021 IEEE Intelligent Vehicles Symposium Workshops (IV Workshops)}, booktitle = {2021 IEEE Intelligent Vehicles Symposium Workshops (IV Workshops)}, publisher = {IEEE}, isbn = {978-1-6654-7921-9}, doi = {10.1109/IVWorkshops54471.2021.9669218}, pages = {236 -- 242}, year = {2021}, abstract = {In this paper we investigate the use of deep neural networks for 3D object detection in uncommon, unstructured environments such as in an open-pit mine. While neural nets are frequently used for object detection in regular autonomous driving applications, more unusual driving scenarios aside street traffic pose additional challenges. For one, the collection of appropriate data sets to train the networks is an issue. For another, testing the performance of trained networks often requires tailored integration with the particular domain as well. While there exist different solutions for these problems in regular autonomous driving, there are only very few approaches that work for special domains just as well. We address both the challenges above in this work. First, we discuss two possible ways of acquiring data for training and evaluation. That is, we evaluate a semi-automated annotation of recorded LIDAR data and we examine synthetic data generation. Using these datasets we train and test different deep neural network for the task of object detection. Second, we propose a possible integration of a ROS2 detector module for an autonomous driving platform. Finally, we present the performance of three state-of-the-art deep neural networks in the domain of 3D object detection on a synthetic dataset and a smaller one containing a characteristic object from an open-pit mine.}, language = {en} } @book{Huening2001, author = {H{\"u}ning, Felix}, title = {Magnetische Eigenschaften niederdimensionaler Chrom-, Ruthenium- und Niobhalogenide}, publisher = {Shaker}, address = {Aachen}, isbn = {3-8265-8551-8}, pages = {II, 122 S Ill., graph. Darst.}, year = {2001}, language = {en} } @article{HueningLukenSchilderetal.2001, author = {H{\"u}ning, Felix and Luken, Heiko and Schilder, Herbert and Eifert, Thomas}, title = {Magnetochemistry: Compounds and Concepts / Lueken, Heiko ; Schilder, Herbert ; Eifert, Thomas ; Handrick, Klaus ; H{\"u}ning, Felix}, series = {Advances in Solid State Physics. 201 (2001)}, journal = {Advances in Solid State Physics. 201 (2001)}, publisher = {-}, pages = {515 -- 532}, year = {2001}, language = {en} } @article{FassbenderBuehler1999, author = {Faßbender, Heinz and B{\"u}hler, Gerhard}, title = {Making a C2 information system platform independent by using internet and middleware technologies}, series = {Proceedings of the 1999 Command and Control Research and Technology Symposium, Juni 1999, Newport, USA}, journal = {Proceedings of the 1999 Command and Control Research and Technology Symposium, Juni 1999, Newport, USA}, pages = {1 -- 11}, year = {1999}, 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} } @inproceedings{SchuetzBreuerHoefkenetal.2013, author = {Sch{\"u}tz, P. and Breuer, M. and H{\"o}fken, Hans-Wilhelm and Schuba, Marko}, title = {Malware proof on mobile phone exhibits based on GSM/GPRS traces}, series = {The Second International Conference on Cyber Security, Cyber Peacefare and Digital Forensic (CyberSec 2013) : 04.03. - 06.03.2013, Kuala Lumpur, Malaysia}, booktitle = {The Second International Conference on Cyber Security, Cyber Peacefare and Digital Forensic (CyberSec 2013) : 04.03. - 06.03.2013, Kuala Lumpur, Malaysia}, publisher = {The Society of Digital Information and Wireless Communication}, isbn = {978-0-9853483-7-3}, pages = {89 -- 96}, year = {2013}, language = {en} } @book{RitzBenzStender2003, author = {Ritz, Thomas and Benz, Axel and Stender, Michael}, title = {Marktstudie mobile CRM-Systeme}, publisher = {Fraunhofer-IRB-Verl.}, address = {Stuttgart}, isbn = {3-8167-6361-8}, pages = {244 S. : Ill., graph. Darst.}, year = {2003}, language = {en} } @article{Ritz2002, author = {Ritz, Thomas}, title = {Mass Customized Production of Information Services - The combination of economies-of-scale with economies-of-scope}, series = {Media firms : structures, operations, and performance ; [World Media Economics Conference, 5th : 2002 : Turku, Finland] / ed. by Robert G. Picard}, journal = {Media firms : structures, operations, and performance ; [World Media Economics Conference, 5th : 2002 : Turku, Finland] / ed. by Robert G. Picard}, publisher = {Erlbaum}, address = {Mahwah, NJ [u.a.]}, isbn = {0-8058-4165-2}, pages = {267 S. : graph. Darst.}, year = {2002}, language = {en} } @inproceedings{DetertGligorevicHaaketal.2003, author = {Detert, T. and Gligorevic, Snjezana and Haak, W. and Sorger, Ulrich}, title = {Maximum-likelihood channel estimation using the spreading matrix in fast time-variant frequency selective channels}, series = {Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2003 : 14 - 17 December 2003, Darmstadt, Germany}, booktitle = {Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology, ISSPIT 2003 : 14 - 17 December 2003, Darmstadt, Germany}, organization = {Institute of Electrical and Electronics Engineers}, isbn = {0-7803-8292-7}, pages = {347 -- 350}, year = {2003}, language = {en} } @article{HartungHornHuschkeetal.2009, author = {Hartung, Frank and Horn, Uwe and Huschke, J{\"o}rg and Kampmann, Markus}, title = {MBMS—IP Multicast/Broadcast in 3G Networks / Hartung, Frank ; Horn, Uwe ; Huschke, J{\"o}rg ; Kampmann, Markus ; Lohmar, Thorsten}, series = {International Journal of Digital Multimedia Broadcasting. 2009 (2009)}, journal = {International Journal of Digital Multimedia Broadcasting. 2009 (2009)}, isbn = {1687-7586}, pages = {1 -- 25}, year = {2009}, language = {en} } @article{HagemannWiechert1992, author = {Hagemann, Hans-J{\"u}rgen and Wiechert, D. U.}, title = {Measurements and calculations of the LP01 intensity of SM fibres far off the core. Hagemann, H.-J.; Wiechert, D. U.}, series = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 10 (1992), H. 4}, journal = {Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 10 (1992), H. 4}, isbn = {0733-8724}, pages = {407 -- 412}, year = {1992}, language = {en} } @article{HartungReyMathieuetal.2004, author = {Hartung, Frank and Rey, J. and Mathieu, B. and Lozano, D.}, title = {Media aware overlay routing in Ambient Networks / Rey, J. ; Mathieu, B. ; Lozano, D. ; Herborn, S. ; Ahmed, K. ; Schmid, S. ; Goebbels, S. ; Hartung, F. ; Kampmann, M.}, series = {16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. Date:11-14 Sept. 2005 ; Vol. 2}, journal = {16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. Date:11-14 Sept. 2005 ; Vol. 2}, pages = {952 -- 957}, year = {2004}, language = {en} } @article{HartungKampmann2007, author = {Hartung, Frank and Kampmann, Markus}, title = {Media Delivery Based on Service Aware Transport Overlay Networks / Kampmann, Markus ; Hartung, Frank}, series = {KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. M{\"a}rz 2007 in Bern, Schweiz ; Industriebeitr{\"a}ge, Kurzbeitr{\"a}ge und Workshops / T. Braun ... (Hrsg.)}, journal = {KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. M{\"a}rz 2007 in Bern, Schweiz ; Industriebeitr{\"a}ge, Kurzbeitr{\"a}ge und Workshops / T. Braun ... (Hrsg.)}, isbn = {978-3-8007-2980-7}, pages = {9 -- 10}, year = {2007}, language = {en} } @inproceedings{SchollBartellaMoluluoetal.2019, author = {Scholl, Ingrid and Bartella, Alex and Moluluo, Cem and Ertural, Berat and Laing, Frederic and Suder, Sebastian}, title = {MedicVR : Acceleration and Enhancement Techniques for Direct Volume Rendering in Virtual Reality}, series = {Bildverarbeitung f{\"u}r die Medizin 2019 : Algorithmen - Systeme - Anwendungen}, booktitle = {Bildverarbeitung f{\"u}r die Medizin 2019 : Algorithmen - Systeme - Anwendungen}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-25326-4}, doi = {10.1007/978-3-658-25326-4_32}, pages = {152 -- 157}, year = {2019}, language = {en} } @article{Heuermann1997, author = {Heuermann, Holger}, title = {Microwave On-Wafer Measurements with Activ Needle Probe Tips}, pages = {208 -- 214}, year = {1997}, language = {en} } @incollection{HeuermannFinger2014, author = {Heuermann, Holger and Finger, Torsten}, title = {Microwave Spark Plug for Very High-Pressure Conditions}, series = {Ignition systems for gasoline engines}, booktitle = {Ignition systems for gasoline engines}, editor = {G{\"u}nther, Michael}, publisher = {DCM Druck}, address = {Meckenheim}, pages = {269 -- 282}, year = {2014}, language = {en} } @article{HeuermannEmmrichBongartz2022, author = {Heuermann, Holger and Emmrich, Thomas and Bongartz, Simon}, title = {Microwave spark plug to support ignitions with high compression ratios}, series = {IEEE Transactions on Plasma Science}, journal = {IEEE Transactions on Plasma Science}, number = {Early Access}, publisher = {IEEE}, issn = {1939-9375}, doi = {10.1109/TPS.2022.3183690}, pages = {1 -- 6}, year = {2022}, abstract = {Upcoming gasoline engines should run with a larger number of fuels beginning from petrol over methanol up to gas by a wide range of compression ratios and a homogeneous charge. In this article, the microwave (MW) spark plug, based on a high-speed frequency hopping system, is introduced as a solution, which can support a nitrogen compression ratio up to 1:39 in a chamber and more. First, an overview of the high-speed frequency hopping MW ignition and operation system as well as the large number of applications are presented. Both gives an understanding of this new base technology for MW plasma generation. Focus of the theoretical part is the explanation of the internal construction of the spark plug, on the achievable of the high voltage generation as well as the high efficiency to hold the plasma. In detail, the development process starting with circuit simulations and ending with the numerical multiphysics field simulations is described. The concept is evaluated with a reference prototype covering the frequency range between 2.40 and 2.48 GHz and working over a large power range from 20 to 200 W. A larger number of different measurements starting by vector hot-S11 measurements and ending by combined working scenarios out of hot temperature, high pressure and charge motion are winding up the article. The limits for the successful pressure tests were given by the pressure chamber. Pressures ranged from 1 to 39 bar and charge motion up to 25 m/s as well as temperatures from 30◦ to 125◦.}, language = {en} }