@article{Wollert2015,
  author    = {Wollert, J{\"o}rg},
  title     = {Echtzeit-Ethernet : Protokoll-Reigen},
  series = {elektroniknet.de},
  journal   = {elektroniknet.de},
  year      = {2015},
  language  = {de}
}
@inproceedings{Wollert2016,
  author    = {Wollert, J{\"o}rg},
  title     = {Industrie 4.0 - warten bis die Revolution vorbei ist?},
  series = {Automatisierung im Fokus von Industrie 4.0 : Tagungsband AALE 2016 ; 13. Fachkonferenz, L{\"u}beck},
  booktitle = {Automatisierung im Fokus von Industrie 4.0 : Tagungsband AALE 2016 ; 13. Fachkonferenz, L{\"u}beck},
  publisher = {DIV Deutscher Industrieverlag GmbH},
  address   = {M{\"u}nchen},
  isbn      = {978-3-8356-7312-0},
  pages     = {127 -- 136},
  year      = {2016},
  language  = {de}
}
@inproceedings{Wollert2015,
  author    = {Wollert, J{\"o}rg},
  title     = {Wireless systems for machinery safety : Requirements and solutions for wireless real time systems},
  series = {16th International Conference on Research and Education in Mechatronics (REM), 2015},
  booktitle = {16th International Conference on Research and Education in Mechatronics (REM), 2015},
  isbn      = {978-3-945728-01-7},
  doi       = {10.1109/REM.2015.7380377},
  pages     = {88 -- 91},
  year      = {2015},
  language  = {en}
}
@article{Wollert2016,
  author    = {Wollert, J{\"o}rg},
  title     = {Rapid Application Development},
  series = {Design \& Elektronik},
  journal   = {Design \& Elektronik},
  number    = {4},
  publisher = {WEKA-Fachmedien},
  address   = {M{\"u}nchen},
  issn      = {0933-8667},
  pages     = {8 -- 11},
  year      = {2016},
  abstract  = {Das IoT ist ohne eingebettete Systeme undenkbar. Erst kleine und kleinste Mikrocontroller mit intelligenten Kommunikationsschnittstellen und Anbindung ans Internet erm{\"o}glichen sinnvolles und fl{\"a}chendeckendes Einsammeln von Daten. Doch wie kompliziert ist der Einstieg in die Embedded-Welt? Dieser Artikel gibt Einblick, wie die »Arduino-Plattform« die Einstiegsh{\"u}rden f{\"u}r eingebettete Systeme dramatisch reduzieren kann.},
  language  = {de}
}
@article{Wollert2016,
  author    = {Wollert, J{\"o}rg},
  title     = {Industrial Internet of Things : Seifenblase oder Revolution},
  series = {Elektronik},
  journal   = {Elektronik},
  number    = {7},
  publisher = {WEKA-Fachmedien},
  address   = {M{\"u}nchen},
  issn      = {0013-5658},
  pages     = {39 -- 45},
  year      = {2016},
  language  = {de}
}
@article{Wollert2016,
  author    = {Wollert, J{\"o}rg},
  title     = {OS-Funktionalit{\"a}t ohne OS f{\"u}r das IoT},
  series = {Design \& Elektronik},
  journal   = {Design \& Elektronik},
  number    = {11},
  publisher = {WEKA-Fachmedien},
  address   = {M{\"u}nchen},
  issn      = {0933-8667},
  pages     = {85 -- 90},
  year      = {2016},
  abstract  = {Low-end-Embedded-Plattformen stellen eine hohe Anforderung an die Entscheidungsf{\"a}higkeit des Entwicklers: Zum n{\"a}chstgr{\"o}ßeren Prozessor greifen und ein Betriebssystem benutzen oder doch besser auf das Betriebssystem verzichten? Die Frage l{\"a}sst sich einfach beantworten: Einen Nanokernel verwenden und das Embedded-System mit einem minimalen Footprint realisieren. Adam Dunkels Protothreads sind eine ausgesprochen effiziente Art, Mikrocontroller gut strukturiert zu programmieren und gleichzeitig auf Overhead zu verzichten. So k{\"o}nnen auch mit kleinen 8-bit-Prozessoren anspruchsvolle Aufgaben in einem Thread-Modell bearbeitet werden. Man muss also nicht immer das Rad neu erfinden oder gleich auf Linux-basierte Systeme zur{\"u}ckgreifen.},
  language  = {de}
}
@article{Wollert2017,
  author    = {Wollert, J{\"o}rg},
  title     = {Echtzeit-Ethernet - Basis f{\"u}r Industrie 4.0},
  series = {Design \& Elektronik},
  journal   = {Design \& Elektronik},
  number    = {12},
  publisher = {WEKA-Fachmedien},
  address   = {Haar, M{\"u}nchen},
  issn      = {0933-8667},
  pages     = {38 -- 41},
  year      = {2017},
  language  = {de}
}
@article{Wollert2018,
  author    = {Wollert, J{\"o}rg},
  title     = {Echtzeit-Ethernet - Basis f{\"u}r Industrie 4.0},
  series = {Design \& Elektronik},
  journal   = {Design \& Elektronik},
  publisher = {WEKA-Fachmedien},
  address   = {M{\"u}nchen},
  isbn      = {0933-8667},
  year      = {2018},
  language  = {de}
}
@article{Wollert2018,
  author    = {Wollert, J{\"o}rg},
  title     = {TSN - Schluss mit dem Feldbuskrieg?},
  series = {Design \& Elektronik},
  journal   = {Design \& Elektronik},
  number    = {3},
  publisher = {WEKA-Fachmedien},
  address   = {M{\"u}nchen},
  issn      = {0933-8667},
  pages     = {26 -- 31},
  year      = {2018},
  language  = {de}
}
@article{WollbrinkMasloZimmeretal.2020,
  author    = {Wollbrink, Moritz and Maslo, Semir and Zimmer, Daniel and Abbas, Karim and Arntz, Kristian and Bergs, Thomas},
  title     = {Clamping and substrate plate system for continuous additive build-up and post-processing of metal parts},
  series = {Procedia CIRP},
  volume    = {93},
  journal   = {Procedia CIRP},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2212-8271},
  doi       = {10.1016/j.procir.2020.04.015},
  pages     = {108 -- 113},
  year      = {2020},
  abstract  = {The manufacturing share of laser powder bed fusion (L-PBF) increases in industrial application, but still many process steps are manually operated. Additionally, it is not possible to achieve tight dimensional tolerances or low surfaces roughness. Hence, a process chain has to be set up to combine additive manufacturing (AM) with further machining technologies. To achieve a continuous workpiece flow as basis for further industrialization of L-PBF, the paper presents a novel substrate system and its application on L-PBF machines and post-processing. The substrate system consists of a zero-point clamping system and a matrix-like interface of contact pins to be substantially connected to the workpiece within the L-PBF process.},
  language  = {en}
}
@article{WittBogner1990,
  author    = {Witt, Klaus and Bogner, D.},
  title     = {Druckmessung mit zukunftsorientierten Perspektiven},
  series = {Sensor Report. 5 (1990), H. 1},
  journal   = {Sensor Report. 5 (1990), H. 1},
  isbn      = {0179-9592},
  pages     = {8 -- 14},
  year      = {1990},
  language  = {de}
}
@article{WingensMayPfaff2019,
  author    = {Wingens, Niklas and May, J{\"o}rg and Pfaff, Raphael},
  title     = {Betrieblich-technische Innovationsans{\"a}tze zur Bremsprobe nach einer Prozess{\"a}nderung},
  series = {Eisenbahntechnische Rundschau : ETR ; Zeitschrift f{\"u}r die gesamte Eisenbahntechnik},
  journal   = {Eisenbahntechnische Rundschau : ETR ; Zeitschrift f{\"u}r die gesamte Eisenbahntechnik},
  number    = {5},
  publisher = {DVV Media Group},
  address   = {Hamburg},
  issn      = {0013-2845},
  pages     = {5},
  year      = {2019},
  language  = {de}
}
@article{WillmsBeerFroehlkeetal.1993,
  author    = {Willms, Herbert and Beer, Stefan and Fr{\"o}hlke, K. and Haidn, O.J. and [u.a.],},
  title     = {Regelung eines Wasserstoff-/Sauerstoff-Dampferzeugers mit Hilfe eines modifizierten Zirkondioxid-Sensors},
  year      = {1993},
  language  = {de}
}
@book{WillmsBeer1993,
  author    = {Willms, Herbert and Beer, Stefan},
  title     = {Regelung eines H2/O2-Dampferzeugers},
  publisher = {DLR, Zentrale Allgemeine Dienste, Versand},
  address   = {K{\"o}ln},
  pages     = {116 S. : graph. Darst.},
  year      = {1993},
  language  = {de}
}
@article{WillmsBeer1992,
  author    = {Willms, Herbert and Beer, Stefan},
  title     = {Regelung eines H(IND 2)/O(IND 2)-Dampferzeugers},
  isbn      = {0939-2963},
  year      = {1992},
  language  = {de}
}
@book{Willms1987,
  author    = {Willms, Herbert},
  title     = {Untersuchung der Wechselwirkung zwischen Str{\"o}mungsfeld und Reaktionsfront beim deflagrativen Abbrand von Kohlenwasserstoff-Luft-Gemischwolken},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-142719-5},
  pages     = {VII, 168 S. : Ill., graph. Darst.},
  year      = {1987},
  language  = {de}
}
@article{Willms1993,
  author    = {Willms, Herbert},
  title     = {Regelung eines H2/O2-Dampferzeugers mit Hilfe eines modifizierten Zirkondioxid-Sensors},
  series = {Chemie Ingenieur Technik},
  volume    = {65},
  journal   = {Chemie Ingenieur Technik},
  number    = {8},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  isbn      = {0009-286X},
  pages     = {954 -- 956},
  year      = {1993},
  language  = {de}
}
@article{WilbringEnningPfaffetal.2020,
  author    = {Wilbring, Daniela and Enning, Manfred and Pfaff, Raphael and Schmidt, Bernd},
  title     = {Neue Perspektiven f{\"u}r die Bahn in der Produktions- und Distributionslogistik durch Prozessautomation},
  series = {ETR - Eisenbahntechnische Rundschau},
  volume    = {69},
  journal   = {ETR - Eisenbahntechnische Rundschau},
  number    = {3},
  issn      = {0013-2845},
  pages     = {15 -- 19},
  year      = {2020},
  language  = {de}
}
@article{WilbringEnning2019,
  author    = {Wilbring, Daniela and Enning, Manfred},
  title     = {Stromversorgung auf G{\"u}terwagen - Aktuelle Bem{\"u}hungen zur Standardisierung},
  series = {ETR - Eisenbahntechnische Rundschau},
  volume    = {68},
  journal   = {ETR - Eisenbahntechnische Rundschau},
  number    = {11},
  publisher = {DVV Media Group},
  address   = {Hamburg},
  issn      = {0013-2845},
  pages     = {64 -- 67},
  year      = {2019},
  language  = {de}
}
@inproceedings{WiezikHoetterGebhardt2015,
  author    = {Wiezik, P. and H{\"o}tter, Jan-Steffen and Gebhardt, Andreas},
  title     = {Integration des Laserpolierens in den SLM-Prozess},
  series = {DVS Congress 2015, Große Schweißtechnische Tagung, DVS-Studentenkongress, F{\"u}gen von faserverst{\"a}rkten Kunststoffen, Anwendungsnahe Schweißsimulation, Vortr{\"a}ge der Veranstaltungen, N{\"u}rnberg, DE, 15.-17. Sep, 2015},
  volume    = {315},
  booktitle = {DVS Congress 2015, Große Schweißtechnische Tagung, DVS-Studentenkongress, F{\"u}gen von faserverst{\"a}rkten Kunststoffen, Anwendungsnahe Schweißsimulation, Vortr{\"a}ge der Veranstaltungen, N{\"u}rnberg, DE, 15.-17. Sep, 2015},
  publisher = {Verl. f{\"u}r Schweißen und verwandte Verfahren, DVS-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {978-3-945023-46-4},
  pages     = {117 -- 120},
  year      = {2015},
  language  = {de}
}
@inproceedings{WiesenEngemannLimpertetal.2018,
  author    = {Wiesen, Patrick and Engemann, Heiko and Limpert, Nicolas and Kallweit, Stephan},
  title     = {Learning by Doing - Mobile Robotics in the FH Aachen ROS Summer School},
  series = {European Robotics Forum 2018, TRROS18 Workshop},
  booktitle = {European Robotics Forum 2018, TRROS18 Workshop},
  pages     = {47 -- 58},
  year      = {2018},
  language  = {en}
}
@inproceedings{WiesenSchleser2019,
  author    = {Wiesen, Andreas and Schleser, Markus},
  title     = {Entwicklung einer Qualit{\"a}tssicherung f{\"u}r das Laserstrahlschweißen im Vakuum mittels Bildverarbeitung},
  series = {Große Schweißtechnische Tagung},
  booktitle = {Große Schweißtechnische Tagung},
  publisher = {DVS-Media},
  address   = {D{\"u}sseldorf},
  isbn      = {978-3-96144-066-5},
  pages     = {1 -- 6},
  year      = {2019},
  language  = {de}
}
@inproceedings{WeissHeslenfeldSaeweetal.2022,
  author    = {Weiss, Christian and Heslenfeld, Jonas and Saewe, Jasmin Kathrin and Bremen, Sebastian and H{\"a}fner, Constantin Leon},
  title     = {Investigation on the influence of powder humidity in Laser Powder Bed Fusion (LPBF)},
  series = {Procedia CIRP},
  volume    = {111},
  booktitle = {Procedia CIRP},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2212-8271},
  doi       = {10.1016/j.procir.2022.08.102},
  pages     = {115 -- 120},
  year      = {2022},
  abstract  = {In the Laser Powder Bed Fusion (LPBF) process, parts are built out of metal powder material by exposure of a laser beam. During handling operations of the powder material, several influencing factors can affect the properties of the powder material and therefore directly influence the processability during manufacturing. Contamination by moisture due to handling operations is one of the most critical aspects of powder quality. In order to investigate the influences of powder humidity on LPBF processing, four materials (AlSi10Mg, Ti6Al4V, 316L and IN718) are chosen for this study. The powder material is artificially humidified, subsequently characterized, manufactured into cubic samples in a miniaturized process chamber and analyzed for their relative density. The results indicate that the processability and reproducibility of parts made of AlSi10Mg and Ti6Al4V are susceptible to humidity, while IN718 and 316L are barely influenced.},
  language  = {en}
}
@inproceedings{WeingartSchneiderWollert2009,
  author    = {Weingart, Daniel and Schneider, Ulf and Wollert, J{\"o}rg},
  title     = {Doppelt gekoppelt - Kabellose und dynamische Anbindung von CANopen an Profinet IO},
  series = {Elektrische Automatisierung - Systeme und Komponenten: SPS-IPC-Drives 2009, Fachmesse \& Kongress, 24. - 26. Nov. 2009, N{\"u}rnberg ; [Tagungsband]},
  booktitle = {Elektrische Automatisierung - Systeme und Komponenten: SPS-IPC-Drives 2009, Fachmesse \& Kongress, 24. - 26. Nov. 2009, N{\"u}rnberg ; [Tagungsband]},
  publisher = {VDE-Verl.},
  address   = {Berlin [u.a.]},
  isbn      = {978-3-8007-3184-8},
  pages     = {147 -- 154},
  year      = {2009},
  language  = {de}
}
@article{WangAnikFrohberg1988,
  author    = {Wang, Mao and Anik, Sabri and Frohberg, Martin G.},
  title     = {Experiments on the electrochemical determination of the sulphur activities in the system copper-silver at 1200°C},
  series = {Zeitschrift f{\"u}r Metallkunde},
  volume    = {79},
  journal   = {Zeitschrift f{\"u}r Metallkunde},
  number    = {5},
  issn      = {0044-3093},
  pages     = {336 -- 339},
  year      = {1988},
  language  = {en}
}
@article{WangAnikFrohberg1987,
  author    = {Wang, Mao and Anik, Sabri and Frohberg, Martin G.},
  title     = {Thermodynamics of oxygen in the lead-antimony system at 1173 K},
  series = {Erzmetall : Rohstoffgewinnung, Verarbeitung, Recycling, Umwelttechnik},
  volume    = {40},
  journal   = {Erzmetall : Rohstoffgewinnung, Verarbeitung, Recycling, Umwelttechnik},
  number    = {6},
  issn      = {0044-2658},
  pages     = {316 -- 319},
  year      = {1987},
  language  = {en}
}
@inproceedings{WalkLaufferRaupachDilgeretal.2004,
  author    = {Walk-Lauffer, Bernd and Raupach, Michael and Dilger, Klaus and B{\"o}hm, Stefan and Mundt, F. and Dilthey, Ulrich and Schleser, Markus},
  title     = {The interconnection between inner filaments of textile reinforcement by means of polymer modified concrete},
  series = {Proceedings of the First International Conference on Innovative Materials and Technologies for Construction and Restoration : : Lecce, June 6 - 9, 2004 / Universit{\`a} degli Studi di Lecce / ed. Antonio La Tegola. Vol. 1: Key-notes, materials, construction},
  booktitle = {Proceedings of the First International Conference on Innovative Materials and Technologies for Construction and Restoration : : Lecce, June 6 - 9, 2004 / Universit{\`a} degli Studi di Lecce / ed. Antonio La Tegola. Vol. 1: Key-notes, materials, construction},
  publisher = {Liguori},
  address   = {Napoli},
  pages     = {150 -- 159},
  year      = {2004},
  language  = {en}
}
@masterthesis{Vu2022,
  type      = {Bachelor Thesis},
  author    = {Vu, Tuan Dat},
  title     = {Objekterkennung und Schienenerkennung in der Schienenfahrzeugtechnik},
  publisher = {FH Aachen},
  address   = {Aachen},
  school      = {Fachhochschule Aachen},
  pages     = {72 Seiten},
  year      = {2022},
  language  = {de}
}
@inproceedings{VredalWollert2006,
  author    = {Vredal, Andreas and Wollert, J{\"o}rg},
  title     = {Praktische Untersuchungen zur Reduzierung der Restfehlerrate von Funksystemen},
  series = {Wireless Automation : Chancen, L{\"o}sungen, Risiken ; Tagung Darmstadt, 8. und 9. Mai 2006. (VDI-Berichte ; 1939)},
  booktitle = {Wireless Automation : Chancen, L{\"o}sungen, Risiken ; Tagung Darmstadt, 8. und 9. Mai 2006. (VDI-Berichte ; 1939)},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-091939-6},
  pages     = {135 -- 146},
  year      = {2006},
  language  = {de}
}
@inproceedings{VedralWollertBudaetal.2006,
  author    = {Vedral, Andreas and Wollert, J{\"o}rg and Buda, A. and Altrock, R.},
  title     = {The capability of bluetooth for real-time transmission in automation},
  series = {Proceedings of the IASTED International Conference on Networks and Communication Systems 2006 : March 29 - 31, 2006, Chiang Mai, Thailand},
  booktitle = {Proceedings of the IASTED International Conference on Networks and Communication Systems 2006 : March 29 - 31, 2006, Chiang Mai, Thailand},
  publisher = {Acta Pr.},
  address   = {Anaheim, Calif.},
  organization    = {International Association of Science and Technology for Development},
  pages     = {168 -- 175},
  year      = {2006},
  language  = {en}
}
@inproceedings{VedralWollert2006,
  author    = {Vedral, Andreas and Wollert, J{\"o}rg},
  title     = {Die Analyse industrieller funkgest{\"u}tzter Kommunikationskan{\"a}le},
  series = {Elektrische Automatisierung - Systeme und Komponenten : SPS/IPC/Drives 2006, Fachmesse \& Kongress, 28. - 30. Nov. 2006, N{\"u}rnberg},
  booktitle = {Elektrische Automatisierung - Systeme und Komponenten : SPS/IPC/Drives 2006, Fachmesse \& Kongress, 28. - 30. Nov. 2006, N{\"u}rnberg},
  publisher = {VDE-Verl.},
  address   = {Berlin},
  isbn      = {9783800729944},
  pages     = {279 -- 288},
  year      = {2006},
  language  = {de}
}
@inproceedings{VedralWollert2005,
  author    = {Vedral, Andreas and Wollert, J{\"o}rg},
  title     = {Service based Bluetooth dual-hop networks using CORBA},
  series = {Proceedings of the IASTED International Conference on Artificial Intelligence and Applications : as part of the 23rd IASTED International Multi-Conference on Applied Informatics ; February 14 - 16, 2005, Innsbruck, Austria},
  booktitle = {Proceedings of the IASTED International Conference on Artificial Intelligence and Applications : as part of the 23rd IASTED International Multi-Conference on Applied Informatics ; February 14 - 16, 2005, Innsbruck, Austria},
  publisher = {Acta Pr.},
  address   = {Anaheim, Calif.},
  organization    = {International Conference on Artificial Intelligence and Applications <2005, Innsbruck> ; International Multi-Conference on Applied Informatics <23, 2005, Innsbruck>},
  isbn      = {0-88986-457-8},
  pages     = {724 -- 728},
  year      = {2005},
  language  = {en}
}
@inproceedings{VedralWollert2004,
  author    = {Vedral, Andreas and Wollert, J{\"o}rg},
  title     = {Analyse und Definition der Qualit{\"a}t von Funkkan{\"a}len f{\"u}r die Echtzeit{\"u}bertragung},
  series = {Funkgest{\"u}tzte Kommunikation in der industriellen Automatisierungstechnik : Tagung D{\"u}sseldorf, 4. und 5. Mai 2004. (VDI-Berichte ; 1843)},
  booktitle = {Funkgest{\"u}tzte Kommunikation in der industriellen Automatisierungstechnik : Tagung D{\"u}sseldorf, 4. und 5. Mai 2004. (VDI-Berichte ; 1843)},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-091843-8},
  pages     = {113 -- 122},
  year      = {2004},
  language  = {de}
}
@inproceedings{VedralWollert2003,
  author    = {Vedral, Andreas and Wollert, J{\"o}rg},
  title     = {Ansatz eines dienstorientierten Ad-Hoc netzwerkf{\"a}higen Bluetooth-Netzwerks mit CORBA-Schnittstelle f{\"u}r drahtgebundene und drahtlose Netzwerke},
  series = {Bluetooth : 4. Kongress, Dortmund, 29. - 30 Januar 2003},
  booktitle = {Bluetooth : 4. Kongress, Dortmund, 29. - 30 Januar 2003},
  pages     = {1 -- 13},
  year      = {2003},
  language  = {de}
}
@inproceedings{VedralWollert2006,
  author    = {Vedral, Andreas and Wollert, J{\"o}rg},
  title     = {Praktische Untersuchungen zum zeitlichen {\"U}bertragungs- und B{\"u}ndelfehlerverhalten der IEEE 802.15.4},
  series = {ZigBee \& Co. - drahtlose Nahbereichsnetzwerke : 04. April 2006, M{\"u}nchen},
  booktitle = {ZigBee \& Co. - drahtlose Nahbereichsnetzwerke : 04. April 2006, M{\"u}nchen},
  publisher = {Design\&Elektronik},
  address   = {Poing},
  organization    = {Entwicklerforum ZigBee \& Co. - Drahtlose Nahbereichsnetzwerke <2006, M{\"u}nchen>},
  year      = {2006},
  language  = {de}
}
@inproceedings{VedralKruseWollert2007,
  author    = {Vedral, Andreas and Kruse, Thomas and Wollert, J{\"o}rg},
  title     = {Development and performance evaluation of an antenna diversity module for industrial communication based on IEEE 802.15.4},
  series = {12th IEEE International Conference on Emerging Technologies and Factory Automation : ETFA 2007 : proceedings : 25-28 Sept. 2007, Patras, Greece},
  booktitle = {12th IEEE International Conference on Emerging Technologies and Factory Automation : ETFA 2007 : proceedings : 25-28 Sept. 2007, Patras, Greece},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  organization    = {International Conference on Emerging Technologies and Factory Automation <12, 2007, Patras, Greece>},
  isbn      = {1424408261 ; 9781424408269},
  doi       = {10.1109/EFTA.2007.4416769},
  pages     = {177 -- 186},
  year      = {2007},
  language  = {en}
}
@inproceedings{VedralWollert2006,
  author    = {Vedral, A. and Wollert, J{\"o}rg},
  title     = {Analysis of error and time behavior of the IEEE 802.15.4 PHY-layer in an industrial environment},
  series = {Proceedings / 2006 IEEE International Workshop on Factory Communication Systems : June 28th - 30th, 2006},
  booktitle = {Proceedings / 2006 IEEE International Workshop on Factory Communication Systems : June 28th - 30th, 2006},
  publisher = {IEEE Operations Center},
  address   = {Piscataway, NJ},
  organization    = {International Workshop on Factory Communication Systems <2006, Torino>},
  isbn      = {1-4244-0379-0},
  pages     = {119 -- 124},
  year      = {2006},
  language  = {de}
}
@inproceedings{UlmerWollertChengetal.2020,
  author    = {Ulmer, Jessica and Wollert, J{\"o}rg and Cheng, C. and Dowey, S.},
  title     = {Enterprise Gamification f{\"u}r produzierende mittelst{\"a}ndische Unternehmen},
  series = {Shaping automation for our future: 21. Leitkongress Mess- u. Automatisierungstechnik : Automation 2020 : 30. Juni u. 01. Juli 2020},
  booktitle = {Shaping automation for our future: 21. Leitkongress Mess- u. Automatisierungstechnik : Automation 2020 : 30. Juni u. 01. Juli 2020},
  publisher = {VDI-Verlag},
  address   = {D{\"u}sseldorf},
  isbn      = {978-3-18-092375-8},
  pages     = {157 -- 165},
  year      = {2020},
  language  = {de}
}
@inproceedings{UlmerMostafaWollert2022,
  author    = {Ulmer, Jessica and Mostafa, Youssef and Wollert, J{\"o}rg},
  title     = {Digital Twin Academy: From Zero to Hero through individual learning experiences},
  series = {Tagungsband AALE 2022 / Herausgegeben von der Hochschule f{\"u}r Technik, Wirtschaft und Kultur Leipzig},
  booktitle = {Tagungsband AALE 2022 / Herausgegeben von der Hochschule f{\"u}r Technik, Wirtschaft und Kultur Leipzig},
  isbn      = {978-3-910103-00-9},
  doi       = {10.33968/2022.33},
  url       = {http://nbn-resolving.de/urn:nbn:de:bsz:l189-qucosa2-776097},
  pages     = {1 -- 9},
  year      = {2022},
  abstract  = {Digital twins are seen as one of the key technologies of Industry 4.0. Although many research groups focus on digital twins and create meaningful outputs, the technology has not yet reached a broad application in the industry. The main reasons for this imbalance are the complexity of the topic, the lack of specialists, and the unawareness of the twin opportunities. The project "Digital Twin Academy" aims to overcome these barriers by focusing on three actions: Building a digital twin community for discussion and exchange, offering multi-stage training for various knowledge levels, and implementing realworld use cases for deeper insights and guidance. In this work, we focus on creating a flexible learning platform that allows the user to select a training path adjusted to personal knowledge and needs. Therefore, a mix of basic and advanced modules is created and expanded by individual feedback options. The usage of personas supports the selection of the appropriate modules.},
  language  = {en}
}
@inproceedings{UlmerLaiChengetal.2019,
  author    = {Ulmer, Jessica and Lai, Chow Yin and Cheng, Chi-Tsun and Wollert, J{\"o}rg},
  title     = {Integration von VR und AR in Produktlebenszyklen - Eine {\"U}bersicht {\"u}ber die Nutzung virtueller Technologien im industriellen Umfeld},
  series = {Automation 2019},
  booktitle = {Automation 2019},
  pages     = {1 -- 12},
  year      = {2019},
  language  = {de}
}
@article{UlmerGroeningerBraunetal.2020,
  author    = {Ulmer, Jessica and Gr{\"o}ninger, Marc and Braun, Sebastian and Wollert, J{\"o}rg},
  title     = {AR Arbeitspl{\"a}tze: F{\"u}r hochflexible und skalierbare Produktionsumgebungen},
  series = {atp Magazin},
  volume    = {62},
  journal   = {atp Magazin},
  number    = {10},
  publisher = {Vulkan-Verlag},
  address   = {Essen},
  issn      = {2364-3137},
  doi       = {10.17560/atp.v62i10.2495},
  year      = {2020},
  abstract  = {Trotz fortschreitender Automatisierung bleiben manuelle T{\"a}tigkeiten ein wichtiger Baustein der Fertigung kundenindividueller Produkte. Um die Mitarbeiter(innen) zu unterst{\"u}tzen und um eine effiziente Arbeit zu erm{\"o}glichen, werden zunehmend auf Augmented Reality (AR) basierende Systeme eingesetzt. Die vorgestellte Arbeit konzentriert sich auf die Entwicklung ganzheitlicher AR-Arbeitspl{\"a}tze f{\"u}r den Einsatz in kleinen und mittleren Unternehmen (KMU). Das entwickelte AR- Handarbeitskonzept beinhaltet eine Just-in-time-Darstellung der Arbeitsaufgaben auf Werkst{\"u}cken mit automatisierter Fertigungskontrolle. Als Reaktion auf kurze Produktlebenszyklen und hohe Produktvielfalten sind alle Komponenten auf maximale Flexibilit{\"a}t ausgelegt. Ein Umr{\"u}sten auf neue Produkte kann innerhalb von Minuten erfolgen.},
  language  = {de}
}
@inproceedings{UlmerBraunWollert2018,
  author    = {Ulmer, Jessica and Braun, Sebastian and Wollert, J{\"o}rg},
  title     = {Generische IoT Adapter f{\"u}r semantische Maschinenschnittstellen},
  series = {Internet of Things - vom Sensor bis zur Cloud},
  booktitle = {Internet of Things - vom Sensor bis zur Cloud},
  pages     = {1 -- 5},
  year      = {2018},
  language  = {de}
}
@inproceedings{UlmerBraunWollert2021,
  author    = {Ulmer, Jessica and Braun, Sebastian and Wollert, J{\"o}rg},
  title     = {Adaptive VR-Produktionsumgebungen f{\"u}r Evaluations- und Schulungst{\"a}tigkeiten},
  series = {Automation 2021: Navigating towards resilient Production},
  booktitle = {Automation 2021: Navigating towards resilient Production},
  publisher = {VDI},
  address   = {D{\"u}sseldorf},
  isbn      = {978-3-18-092392-5},
  issn      = {0083-5560},
  doi       = {10.51202/9783181023921-55},
  pages     = {55 -- 64},
  year      = {2021},
  abstract  = {Industrie 4.0 stellt viele Herausforderungen an produzierende Unternehmen und ihre Besch{\"a}f-tigten. Innovative und effektive Trainingsstrategien sind erforderlich, um mit den sich schnell ver{\"a}ndernden Produktionsumgebungen und neuen Fertigungstechnologien Schritt halten zu k{\"o}nnen. Virtual Reality (VR) bietet neue M{\"o}glichkeiten f{\"u}r On-the-Job, On-Demand- und Off-Premise-Schulungen. Diese Arbeit stellt ein neues VR Schulungssystem vor, welches sich flexible an unterschiedliche Trainingsobjekte auf Grundlage von Rezepten und CAD Modellen anpassen l{\"a}sst. Das Konzept basiert auf gerichteten azyklischen Graphen und einem Level-system. Es erm{\"o}glicht eine benutzerindividuelle Lerngeschwindigkeit mittels visueller Ele-mente. Das Konzept wurde f{\"u}r einen mechanischen Anwendungsfall mit Industriekomponen-ten implementiert und in der Industrie 4.0-Modellfabrik der FH Aachen umgesetzt.},
  language  = {de}
}
@inproceedings{UlmerBraunLaietal.2019,
  author    = {Ulmer, Jessica and Braun, Sebastian and Lai, Chow Yin and Cheng, Chi-Tsun and Wollert, J{\"o}rg},
  title     = {Generic integration of VR and AR in product lifecycles based on CAD models},
  series = {Proceedings of The 23rd World Multi-Conference on Systemics, Cybernetics and Informatics: WMSCI 2019},
  booktitle = {Proceedings of The 23rd World Multi-Conference on Systemics, Cybernetics and Informatics: WMSCI 2019},
  year      = {2019},
  language  = {en}
}
@article{UlmerBraunChengetal.2020,
  author    = {Ulmer, Jessica and Braun, Sebastian and Cheng, Chi-Tsun and Dowey, Steve and Wollert, J{\"o}rg},
  title     = {Human-Centered Gamification Framework for Manufacturing Systems},
  series = {Procedia CIRP},
  volume    = {93},
  journal   = {Procedia CIRP},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2212-8271},
  doi       = {10.1016/j.procir.2020.04.076},
  pages     = {670 -- 675},
  year      = {2020},
  abstract  = {While bringing new opportunities, the Industry 4.0 movement also imposes new challenges to the manufacturing industry and all its stakeholders. In this competitive environment, a skilled and engaged workforce is a key to success. Gamification can generate valuable feedbacks for improving employees' engagement and performance. Currently, Gamification in workspaces focuses on computer-based assignments and training, while tasks that require manual labor are rarely considered. This research provides an overview of Enterprise Gamification approaches and evaluates the challenges. Based on that, a skill-based Gamification framework for manual tasks is proposed, and a case study in the Industry 4.0 model factory is shown.},
  language  = {en}
}
@inproceedings{UlmerBraunChengetal.2021,
  author    = {Ulmer, Jessica and Braun, Sebastian and Cheng, Chi-Tsun and Dowey, Steve and Wollert, J{\"o}rg},
  title     = {Adapting Augmented Reality Systems to the users' needs using Gamification and error solving methods},
  series = {Procedia CIRP},
  volume    = {104},
  booktitle = {Procedia CIRP},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2212-8271},
  doi       = {10.1016/j.procir.2021.11.024},
  pages     = {140 -- 145},
  year      = {2021},
  abstract  = {Animations of virtual items in AR support systems are typically predefined and lack interactions with dynamic physical environments. AR applications rarely consider users' preferences and do not provide customized spontaneous support under unknown situations. This research focuses on developing adaptive, error-tolerant AR systems based on directed acyclic graphs and error resolving strategies. Using this approach, users will have more freedom of choice during AR supported work, which leads to more efficient workflows. Error correction methods based on CAD models and predefined process data create individual support possibilities. The framework is implemented in the Industry 4.0 model factory at FH Aachen.},
  language  = {en}
}
@inproceedings{UlmerBraunChengetal.2022,
  author    = {Ulmer, Jessica and Braun, Sebastian and Cheng, Chi-Tsun and Dowey, Steve and Wollert, J{\"o}rg},
  title     = {Usage of digital twins for gamification applications in manufacturing},
  series = {Procedia CIRP},
  volume    = {107},
  booktitle = {Procedia CIRP},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2212-8271},
  doi       = {10.1016/j.procir.2022.05.044},
  pages     = {675 -- 680},
  year      = {2022},
  abstract  = {Gamification applications are on the rise in the manufacturing sector to customize working scenarios, offer user-specific feedback, and provide personalized learning offerings. Commonly, different sensors are integrated into work environments to track workers' actions. Game elements are selected according to the work task and users' preferences. However, implementing gamified workplaces remains challenging as different data sources must be established, evaluated, and connected. Developers often require information from several areas of the companies to offer meaningful gamification strategies for their employees. Moreover, work environments and the associated support systems are usually not flexible enough to adapt to personal needs. Digital twins are one primary possibility to create a uniform data approach that can provide semantic information to gamification applications. Frequently, several digital twins have to interact with each other to provide information about the workplace, the manufacturing process, and the knowledge of the employees. This research aims to create an overview of existing digital twin approaches for digital support systems and presents a concept to use digital twins for gamified support and training systems. The concept is based upon the Reference Architecture Industry 4.0 (RAMI 4.0) and includes information about the whole life cycle of the assets. It is applied to an existing gamified training system and evaluated in the Industry 4.0 model factory by an example of a handle mounting.},
  language  = {en}
}
@inproceedings{UlmerBraunChengetal.2020,
  author    = {Ulmer, Jessica and Braun, Sebastian and Cheng, Chi-Tsun and Dowey, Steve and Wollert, J{\"o}rg},
  title     = {Gamified Virtual Reality Training Environment for the Manufacturing Industry},
  doi       = {10.1109/ME49197.2020.9286661},
  pages     = {1 -- 6},
  year      = {2020},
  language  = {de}
}
@inproceedings{UlmerBraunChengetal.2020,
  author    = {Ulmer, Jessica and Braun, Sebastian and Cheng, Chi-Tsun and Dowey, Steve and Wollert, J{\"o}rg},
  title     = {Simulation und Verifikation komplexer Handarbeitsprozesse durch die Kombination von Virtual Reality und Augmented Reality im Single-Piece-Workflow},
  series = {AALE 2020, 17. Fachkonferenz Angewandte Automatisierungstechnik in Lehre und Entwicklung, Automatisierung und Mensch-Technik-Interaktion, Leipzig, DE, 4.-6.3.2020},
  booktitle = {AALE 2020, 17. Fachkonferenz Angewandte Automatisierungstechnik in Lehre und Entwicklung, Automatisierung und Mensch-Technik-Interaktion, Leipzig, DE, 4.-6.3.2020},
  isbn      = {978-3-8007-5180-8},
  pages     = {1 -- 4},
  year      = {2020},
  language  = {de}
}
@article{UlmerBraunChengetal.2022,
  author    = {Ulmer, Jessica and Braun, Sebastian and Cheng, Chi-Tsun and Dowey, Steve and Wollert, J{\"o}rg},
  title     = {Gamification of virtual reality assembly training: Effects of a combined point and level system on motivation and training results},
  series = {International Journal of Human-Computer Studies},
  volume    = {165},
  journal   = {International Journal of Human-Computer Studies},
  number    = {Art. No. 102854},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1071-5819},
  doi       = {10.1016/j.ijhcs.2022.102854},
  year      = {2022},
  abstract  = {Virtual Reality (VR) offers novel possibilities for remote training regardless of the availability of the actual equipment, the presence of specialists, and the training locations. Research shows that training environments that adapt to users' preferences and performance can promote more effective learning. However, the observed results can hardly be traced back to specific adaptive measures but the whole new training approach. This study analyzes the effects of a combined point and leveling VR-based gamification system on assembly training targeting specific training outcomes and users' motivations. The Gamified-VR-Group with 26 subjects received the gamified training, and the Non-Gamified-VR-Group with 27 subjects received the alternative without gamified elements. Both groups conducted their VR training at least three times before assembling the actual structure. The study found that a level system that gradually increases the difficulty and error probability in VR can significantly lower real-world error rates, self-corrections, and support usages. According to our study, a high error occurrence at the highest training level reduced the Gamified-VR-Group's feeling of competence compared to the Non-Gamified-VR-Group, but at the same time also led to lower error probabilities in real-life. It is concluded that a level system with a variable task difficulty should be combined with carefully balanced positive and negative feedback messages. This way, better learning results, and an improved self-evaluation can be achieved while not causing significant impacts on the participants' feeling of competence.},
  language  = {en}
}