@inproceedings{NoetzoldUphuesWegeneretal.2013, author = {N{\"o}tzold, K. and Uphues, A. and Wegener, R. and Fink, K. and Bragard, Michael and Griessel, R. and Soter, S.}, title = {Inverter based test setup for LVRT verification of a full-scale 2 MW wind power converter}, series = {15th European Conference on Power Electronics and Applications (EPE), 2013 : 2 - 6 Sept. 2013, Lille, France / [EPE Association; PELS, IEEE Power Electronics Society]}, booktitle = {15th European Conference on Power Electronics and Applications (EPE), 2013 : 2 - 6 Sept. 2013, Lille, France / [EPE Association; PELS, IEEE Power Electronics Society]}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-4799-0115-9 (Online-Ausg.)}, doi = {10.1109/EPE.2013.6634752}, pages = {1037 -- 1042}, year = {2013}, language = {en} } @inproceedings{NoetzoldUphuesWegeneretal.2012, author = {N{\"o}tzold, K. and Uphues, A. and Wegener, R. and Soter, S. and Fink, K. and Bragard, Michael and Griessel, R.}, title = {Inverter based test setup for LVRT verification of a full-scale 2 MW wind power converter}, series = {EPE Joint Wind Energy and T\&D Chapters Seminar : 28th and 29th of June 2012, in the Utzon Centre, Aalborg, Denmark ; papers, posters, presentations. - Session 2: Grid connection, compliance}, booktitle = {EPE Joint Wind Energy and T\&D Chapters Seminar : 28th and 29th of June 2012, in the Utzon Centre, Aalborg, Denmark ; papers, posters, presentations. - Session 2: Grid connection, compliance}, publisher = {EPE Association}, address = {Brussels}, year = {2012}, language = {en} } @inproceedings{OstkottePetersHueningetal.2022, author = {Ostkotte, Sebastian and Peters, Constantin and H{\"u}ning, Felix and Bragard, Michael}, title = {Design, implementation and verification of an rotational incremental position encoder based on the magnetic Wiegand effect}, series = {2022 ELEKTRO (ELEKTRO)}, booktitle = {2022 ELEKTRO (ELEKTRO)}, publisher = {IEEE}, isbn = {978-1-6654-6726-1}, issn = {2691-0616}, doi = {10.1109/ELEKTRO53996.2022.9803477}, pages = {6 Seiten}, year = {2022}, abstract = {This paper covers the use of the magnetic Wiegand effect to design an innovative incremental encoder. First, a theoretical design is given, followed by an estimation of the achievable accuracy and an optimization in open-loop operation. Finally, a successful experimental verification is presented. For this purpose, a permanent magnet synchronous machine is controlled in a field-oriented manner, using the angle information of the prototype.}, 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{PisarczykRitzSachtleben2013, author = {Pisarczyk, Rafael and Ritz, Thomas and Sachtleben, Johanna}, title = {KMU-taugliche Modelle zur Entwicklung gebrauchstauglicher mobiler Unternehmenssoftware}, series = {Mensch \& Computer 2013 - Workshopband : 13. fach{\"u}bergreifende Konferenz f{\"u}r interaktive und kooperative Medien}, booktitle = {Mensch \& Computer 2013 - Workshopband : 13. fach{\"u}bergreifende Konferenz f{\"u}r interaktive und kooperative Medien}, editor = {Boll-Westermann, Susanne}, publisher = {Oldenbourg}, address = {M{\"u}nchen}, isbn = {978-3-486-77855-7 (Print)}, doi = {10.1524/9783486781236}, pages = {29 -- 38}, year = {2013}, language = {de} } @inproceedings{RauschFriesenAltherretal.2018, author = {Rausch, Lea and Friesen, John and Altherr, Lena and Pelz, Peter F.}, title = {Using mixed-integer programming for the optimal design of water supply networks for slums}, series = {Operations Research Proceedings 2017}, booktitle = {Operations Research Proceedings 2017}, editor = {Kliewer, Natalia and Ehmke, Jan Fabian and Bornd{\"o}rfer, Ralf}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-89919-0 (Print)}, doi = {10.1007/978-3-319-89920-6_68}, pages = {509 -- 516}, year = {2018}, abstract = {The UN sets the goal to ensure access to water and sanitation for all people by 2030. To address this goal, we present a multidisciplinary approach for designing water supply networks for slums in large cities by applying mathematical optimization. The problem is modeled as a mixed-integer linear problem (MILP) aiming to find a network describing the optimal supply infrastructure. To illustrate the approach, we apply it on a small slum cluster in Dhaka, Bangladesh.}, language = {en} } @inproceedings{RauschLeiseEdereretal.2016, author = {Rausch, Lea and Leise, Philipp and Ederer, Thorsten and Altherr, Lena and Pelz, Peter F.}, title = {A comparison of MILP and MINLP solver performance on the example of a drinking water supply system design problem}, series = {ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering}, booktitle = {ECCOMAS Congress 2016 VII European Congress on Computational Methods in Applied Sciences and Engineering}, editor = {Papadrakakis, M. and Ppadopoulos, V. and Stefanou, G. and Plevris, V.}, isbn = {978-618-82844-0-1}, pages = {8509 -- 8527}, year = {2016}, abstract = {Finding a good system topology with more than a handful of components is a highly non-trivial task. The system needs to be able to fulfil all expected load cases, but at the same time the components should interact in an energy-efficient way. An example for a system design problem is the layout of the drinking water supply of a residential building. It may be reasonable to choose a design of spatially distributed pumps which are connected by pipes in at least two dimensions. This leads to a large variety of possible system topologies. To solve such problems in a reasonable time frame, the nonlinear technical characteristics must be modelled as simple as possible, while still achieving a sufficiently good representation of reality. The aim of this paper is to compare the speed and reliability of a selection of leading mathematical programming solvers on a set of varying model formulations. This gives us empirical evidence on what combinations of model formulations and solver packages are the means of choice with the current state of the art.}, language = {en} } @inproceedings{RekePeterSchulteTiggesetal.2020, author = {Reke, Michael and Peter, Daniel and Schulte-Tigges, Joschua and Schiffer, Stefan and Ferrein, Alexander and Walter, Thomas and Matheis, Dominik}, title = {A Self-Driving Car Architecture in ROS2}, series = {2020 International SAUPEC/RobMech/PRASA Conference, Cape Town, South Africa}, booktitle = {2020 International SAUPEC/RobMech/PRASA Conference, Cape Town, South Africa}, publisher = {IEEE}, address = {New York, NY}, isbn = {978-1-7281-4162-6}, doi = {10.1109/SAUPEC/RobMech/PRASA48453.2020.9041020}, pages = {1 -- 6}, year = {2020}, abstract = {In this paper we report on an architecture for a self-driving car that is based on ROS2. Self-driving cars have to take decisions based on their sensory input in real-time, providing high reliability with a strong demand in functional safety. In principle, self-driving cars are robots. However, typical robot software, in general, and the previous version of the Robot Operating System (ROS), in particular, does not always meet these requirements. With the successor ROS2 the situation has changed and it might be considered as a solution for automated and autonomous driving. Existing robotic software based on ROS was not ready for safety critical applications like self-driving cars. We propose an architecture for using ROS2 for a self-driving car that enables safe and reliable real-time behaviour, but keeping the advantages of ROS such as a distributed architecture and standardised message types. First experiments with an automated real passenger car at lower and higher speed-levels show that our approach seems feasible for autonomous driving under the necessary real-time conditions.}, 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{RingbeckBuxbaum1999, author = {Ringbeck, Thorsten and Buxbaum, Bernd}, title = {Layoutoptimierte PMD-Strukturen f{\"u}r die schnelle 3D-Erfassung}, series = {Messen in der Fertigung : 3D-Meßtechnik in Produktion und Entwicklung ; Fachtagung Optische Formerfassung ; Stuttgart, 5. - 6. Oktober 1999. - (Berichtsband / Deutsche Gesellschaft f{\"u}r Zerst{\"o}rungsfreie Pr{\"u}fung ; 70)}, booktitle = {Messen in der Fertigung : 3D-Meßtechnik in Produktion und Entwicklung ; Fachtagung Optische Formerfassung ; Stuttgart, 5. - 6. Oktober 1999. - (Berichtsband / Deutsche Gesellschaft f{\"u}r Zerst{\"o}rungsfreie Pr{\"u}fung ; 70)}, publisher = {DGfZP}, address = {Berlin}, isbn = {3-931381-30-7}, pages = {233 -- 243}, year = {1999}, language = {de} } @inproceedings{RingbeckHagebeuker2007, author = {Ringbeck, Thorsten and Hagebeuker, Bianca}, title = {A 3D time of flight camera of object detection}, series = {Optical 3-D measurement techniques VIII : applications in GIS, mapping, manufacturing, quality control, robotics, navigation, mobile mapping, medical imaging, cultural heritage, VR generation and animation; papers presented to the conference organized at ETH Zurich, Switzerland, July 9 - 12, 2007. - Vol. 1}, booktitle = {Optical 3-D measurement techniques VIII : applications in GIS, mapping, manufacturing, quality control, robotics, navigation, mobile mapping, medical imaging, cultural heritage, VR generation and animation; papers presented to the conference organized at ETH Zurich, Switzerland, July 9 - 12, 2007. - Vol. 1}, editor = {Gr{\"u}n, Armin}, publisher = {ETH}, address = {Z{\"u}rich}, isbn = {3-906467-67-8 (Gesamtwerk)}, pages = {1 -- 16}, year = {2007}, language = {en} } @inproceedings{RingbeckSchwarteBuxbaum1999, author = {Ringbeck, Thorsten and Schwarte, Rudolf and Buxbaum, Bernd}, title = {Introduction of a new opto-electrical phase-locked loop in CMOS technology: the PMD-PLL}, series = {Optical wireless communications II / [SPIE Conference on Optical Wireless Communications II], 22 September 1999, Boston, Massachusetts. - (SPIE proceedings series ; 3850)}, booktitle = {Optical wireless communications II / [SPIE Conference on Optical Wireless Communications II], 22 September 1999, Boston, Massachusetts. - (SPIE proceedings series ; 3850)}, editor = {Korevaar, Eric John}, publisher = {SPIE}, address = {Bellingham, Wash.}, isbn = {0-8194-3443-4}, issn = {0038-7355}, pages = {108 -- 116}, year = {1999}, language = {en} } @inproceedings{RingbeckSchwarteBuxbaumetal.2001, author = {Ringbeck, Thorsten and Schwarte, Rudolf and Buxbaum, Bernd and Hess, Rudolf}, title = {Optical GMSK modem for infrared wireless communication based on a new receiver principle in CMOS technology}, series = {Optoelectronic interconnects VIII : 25 - 26 January 2001, San Jose, USA. - (Proceedings of SPIE ; 4292)}, booktitle = {Optoelectronic interconnects VIII : 25 - 26 January 2001, San Jose, USA. - (Proceedings of SPIE ; 4292)}, editor = {Tang, Suning}, publisher = {SPIE}, address = {Bellingham, Wash.}, isbn = {0-8194-3970-3}, issn = {0038-7355}, pages = {25 -- 34}, year = {2001}, language = {en} } @inproceedings{RitschelStenzelCzarneckietal.2021, author = {Ritschel, Konstantin and Stenzel, Adina and Czarnecki, Christian and Hong, Chin-Gi}, title = {Realizing robotic process automation potentials: an architectural perspective on a real-life implementation case}, series = {GI Edition Proceedings Band 314 "INFORMATIK 2021" Computer Science \& Sustainability}, booktitle = {GI Edition Proceedings Band 314 "INFORMATIK 2021" Computer Science \& Sustainability}, editor = {Gesellschaft f{\"u}r Informatik e.V. (GI),}, publisher = {K{\"o}llen}, address = {Bonn}, isbn = {9783885797081}, issn = {1617-5468}, doi = {10.18420/informatik2021-108}, pages = {1303 -- 1311}, year = {2021}, abstract = {The initial idea of Robotic Process Automation (RPA) is the automation of business processes through a simple emulation of user input and output by software robots. Hence, it can be assumed that no changes of the used software systems and existing Enterprise Architecture (EA) is required. In this short, practical paper we discuss this assumption based on a real-life implementation project. We show that a successful RPA implementation might require architectural work during analysis, implementation, and migration. As practical paper we focus on exemplary lessons-learned and new questions related to RPA and EA.}, language = {en} } @inproceedings{Ritz2003, author = {Ritz, Thomas}, title = {Production and distribution of personalized information services employing mass customization}, series = {2nd Interdisciplinary World Congress on Mass Customization and Personalization : MCPC'03, October 6 - 8, 2003, Technische Universit{\"a}t M{\"u}nchen, Munic, Germany}, booktitle = {2nd Interdisciplinary World Congress on Mass Customization and Personalization : MCPC'03, October 6 - 8, 2003, Technische Universit{\"a}t M{\"u}nchen, Munic, Germany}, edition = {CD-Ausg.}, publisher = {Techn. Univ. (TUM)}, address = {M{\"u}nchen}, pages = {Part IV}, year = {2003}, language = {en} } @inproceedings{Ritz2001, author = {Ritz, Thomas}, title = {Produktion von kundenindividuellen Informationsdienstleistungen}, series = {Workshop Internetbasierte Vertriebsunterst{\"u}tzung in der Praxis : 26. April 2001, Institutszentrum Stuttgart der Fraunhofer-Gesellschaft (IZS) / Fraunhofer Institut Arbeitswirtschaft und Organisation}, booktitle = {Workshop Internetbasierte Vertriebsunterst{\"u}tzung in der Praxis : 26. April 2001, Institutszentrum Stuttgart der Fraunhofer-Gesellschaft (IZS) / Fraunhofer Institut Arbeitswirtschaft und Organisation}, editor = {Zabel, Armin}, publisher = {Fraunhofer IAO}, address = {Stuttgart}, pages = {4 S.}, year = {2001}, language = {de} } @inproceedings{Ritz2001, author = {Ritz, Thomas}, title = {Personalized information services : an electronic information commodity and its production}, series = {Electronic publishing '01 : 2001 in the digital publishing odyssey ; proceedings of an ICCC/IFIP conference held at the University of Kent at Canterbury, Kent, United Kingdom, 5 - 7 July, 2001 ; [proceedings of the Fifth Conference on Electronic Publishing]}, booktitle = {Electronic publishing '01 : 2001 in the digital publishing odyssey ; proceedings of an ICCC/IFIP conference held at the University of Kent at Canterbury, Kent, United Kingdom, 5 - 7 July, 2001 ; [proceedings of the Fifth Conference on Electronic Publishing]}, publisher = {IOS Press [u.a.]}, address = {Amsterdam}, isbn = {1-58603-191-0}, pages = {48 -- 58}, year = {2001}, language = {en} } @inproceedings{Ritz2007, author = {Ritz, Thomas}, title = {Die benutzerzentrierte Entwicklung mobiler Unternehmenssoftware}, series = {MMS 2007: Mobilit{\"a}t und mobile Informationssysteme : 2nd conference of GI-Fachgruppe MMS ; March 6th, 2007 in Aachen, Germany}, booktitle = {MMS 2007: Mobilit{\"a}t und mobile Informationssysteme : 2nd conference of GI-Fachgruppe MMS ; March 6th, 2007 in Aachen, Germany}, editor = {K{\"o}nig-Ries, Brigitta}, publisher = {Ges. f{\"u}r Informatik}, address = {Bonn}, isbn = {978-3-88579-198-0}, pages = {23 -- 35}, year = {2007}, language = {de} } @inproceedings{Ritz2001, author = {Ritz, Thomas}, title = {DISMED - an innovation portal for printing and media industry}, series = {CRIS 2000 : the fifth conference on Current Research Information Systems in Europe, in Helsinki (Finland), 25-27 May 2000}, booktitle = {CRIS 2000 : the fifth conference on Current Research Information Systems in Europe, in Helsinki (Finland), 25-27 May 2000}, publisher = {CORDIS Archive}, address = {[s.l.]}, pages = {9 S. : graph. Darst.}, year = {2001}, language = {en} } @inproceedings{RitzFuchs2008, author = {Ritz, Thomas and Fuchs, Britta}, title = {Kosten-Nutzen-Bewertungen bei mobilen Anwendungen}, series = {Mobile und Ubiquit{\"a}re Informationssysteme - Technologien, Prozesse, Marktfahigkeit. Proceedings zur 3. Konferenz Mobile und Ubiquit{\"a}re Informationssysteme (MMS 2008) 26. - 28. Februar 2008, M{\"u}nchen, Germany. - (GI-Edition : Proceedings ; 123) Breitner, Michael H. [Hrsg.]}, booktitle = {Mobile und Ubiquit{\"a}re Informationssysteme - Technologien, Prozesse, Marktfahigkeit. Proceedings zur 3. Konferenz Mobile und Ubiquit{\"a}re Informationssysteme (MMS 2008) 26. - 28. Februar 2008, M{\"u}nchen, Germany. - (GI-Edition : Proceedings ; 123) Breitner, Michael H. [Hrsg.]}, editor = {Breitner, Michael}, publisher = {Ges. f{\"u}r Informatik}, address = {Bonn}, isbn = {978-3-88579-217-8}, pages = {164 -- 177}, year = {2008}, language = {de} }