TY - JOUR A1 - Hamm, Laurits A1 - Hartung, Frank T1 - High Quality Visual Communication based on IMS JF - Mobilkommunikation : Technologien und Anwendungen ; Vorträge der 16. ITG-Fachtagung vom 18. bis 19. Mai 2011 in Osnabrück / Veranst.: Informationstechnische Gesellschaft im VDE (ITG) ... Tagungsleitung: Ralf Tönjes. Programmkomitee/Hrsg.: Peter Roer Y1 - 2011 SN - 978-3-8007-3352-1 N1 - ITG-Fachbericht ; 230 ; Fachtagung Mobilkommunikation <16, 2011, Osnabrück> SP - 80 EP - 85 PB - VDE-Verl. CY - Berlin ER - TY - JOUR A1 - Hartung, Frank A1 - Kesici, Sinan A1 - Catrein, Daniel T1 - DRM protected Dynamic Adaptive HTTP Streaming JF - Proceedings of the 2011 ACM Multimedia Systems Conference [Elektronische Ressource] : February 23 - 25, 2011, San Jose, CA, USA / sponsored by: ACM SIGMM Y1 - 2011 SN - 9781450305181 N1 - ACM Multimedia Systems Conference ; (2 : ; 2011.02.23-25 : ; San Jose, Calif.) SP - 277 EP - 282 PB - ACM CY - New York, NY ER - TY - JOUR A1 - Hartung, Frank A1 - Noh, Jeonghun A1 - Baccichet, Pierpaolo A1 - Mavlankar, Aditya T1 - Standford Peer-to-Peer Mulicast (SPPM) - Overview and recent Extensions / Noh, Jeonghun ; Baccichet, Pierpaolo ; Hartung, Frank ; Mavlankar, Aditya ; Girod, Bernd Y1 - 2009 SN - 978-1-4244-4593-6 N1 - Picture Coding Symposium, 2009. PCS 2009 ; auch unter IEEE: http://dx.doi.org/10.1109/PCS.2009.5167392 SP - 1 EP - 4 ER - TY - JOUR A1 - Hartung, Frank A1 - Horn, Uwe A1 - Huschke, Jörg A1 - Kampmann, Markus T1 - MBMS—IP Multicast/Broadcast in 3G Networks / Hartung, Frank ; Horn, Uwe ; Huschke, Jörg ; Kampmann, Markus ; Lohmar, Thorsten JF - International Journal of Digital Multimedia Broadcasting. 2009 (2009) Y1 - 2009 SN - 1687-7586 N1 - Article ID 597848 SP - 1 EP - 25 ER - TY - JOUR A1 - Hartung, Frank A1 - Kampmann, Markus A1 - Horn, Uwe A1 - Kritzner, Jan T1 - Mobile Television / Hartung, Frank ; Kampmann, Markus ; Horn, Uwe ; Kritzner, Jan JF - Encyclopedia of mobile computing and commerce / David Taniar ; Bd. 2 : Mobile ICT - Z Y1 - 2007 SN - 978-1-59904-002-8 SP - 611 EP - 615 PB - Information Science Reference CY - Hershey ER - TY - JOUR A1 - Hartung, Frank A1 - Horn, Uwe A1 - Huschke, Jörg A1 - Kampmann, Markus T1 - Delivery of Broadcast Services in 3G Networks / Hartung, Frank ; Horn, Uwe ; Jörg Huschke ; Kampmann, Markus ; Lohmar, Thorsten ; Lundevall, Magnus JF - IEEE Transactions on Broastcasting. 53 (2007), H. 1 Part: 2 Y1 - 2007 SN - 0018-9316 N1 - campusweit: http://dx.doi.org/10.1109/TBC.2007.891711 SP - 188 EP - 199 ER - TY - JOUR A1 - Hartung, Frank A1 - Horn, Uwe A1 - Huschke, Jörg A1 - Kampmann, Markus T1 - Mobile TV Services in 3G Networks / Hartung, Frank ; Horn, Uwe ; Huschke, Jörg ; Kampmann, Markus ; Lohmar, Thorsten JF - KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. März 2007 in Bern, Schweiz ; Industriebeiträge, Kurzbeiträge und Workshops / T. Braun ... (Hrsg.) Y1 - 2007 SN - 978-3-8007-2980-7 N1 - Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference SP - 15 EP - 18 ER - TY - JOUR A1 - Hartung, Frank A1 - Kampmann, Markus T1 - Media Delivery Based on Service Aware Transport Overlay Networks / Kampmann, Markus ; Hartung, Frank JF - KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. März 2007 in Bern, Schweiz ; Industriebeiträge, Kurzbeiträge und Workshops / T. Braun ... (Hrsg.) Y1 - 2007 SN - 978-3-8007-2980-7 N1 - Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference SP - 9 EP - 10 ER - TY - JOUR A1 - Hartung, Frank A1 - Kampmann, M. A1 - Horn, U. A1 - Huschke, J. T1 - Delivery of Mobile TV services in 3G cellular networks / Kampmann, M. ; Hartung, F. ; Horn, U. ; Huschke, J. ; Lohmar, T. JF - Elektronische Medien : Vorträge des 12. Dortmunder Fernsehseminars vom 20. bis 21. März 2007 in Dortmund / Veranst.: ITG-FKTG-Fachbereich 3 ... Wiss. Tagungsleitung: R. Kays Y1 - 2007 SN - 978-3-8007-3019-3 N1 - ITG-Fachbericht ; 199 SP - 49 EP - 52 PB - VDE-Verl. CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Schiffer, Stefan A1 - Lakemeyer, Gerhard T1 - Embedding fuzzy controllers in golog / Ferrein, Alexander ; Schiffer, Stefan ; Lakemeyer, Gerhard JF - IEEE International Conference on Fuzzy Systems, 2009. FUZZ-IEEE 2009 Y1 - 2009 SN - 978-1-4244-3596-8 SP - 894 EP - 899 PB - IEEE CY - New York ER - TY - JOUR A1 - Ferrein, Alexander A1 - Beck, Daniel A1 - Lakemeyer, Gerhard T1 - Landmark-Based Representations for Navigating Holonomic Soccer Robots / Beck, Daniel ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - RoboCup 2008 : robot soccer world cup XII / Luca Iocchi ... (eds.) Y1 - 2009 SN - 978-3-642-02921-9 N1 - Lecture Notes in Computer Science ; 5399 SP - 25 EP - 36 PB - Springer CY - Heidelberg ER - TY - JOUR A1 - Ferrein, Alexander A1 - Rens, Gavin A1 - Poel, Etienne van der T1 - A BDI agent architecture for a POMDP planner / Rens, Gavin ; Ferrein, Alexander ; Poel, Etienne van der Y1 - 2009 N1 - 9th International Symposium on Logical Formalization of Commonsense Reasoning: Commonsense 2009, Toronto, Canada, 1-3 June, 2009 SP - 1 EP - 6 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Jacobs, Stefan A1 - Schiffer, Stefan A1 - Beck, Daniel T1 - Robust Collision Avoidance in Unknown Domestic Environments / Jacobs, Stefan ; Ferrein, Alexander ; Schiffer, Stefan ; Beck, Daniel ; Lakemeyer, Gerhard JF - ROBOCUP 2009: ROBOT SOCCER WORLD CUP XIII Y1 - 2009 N1 - Lecture Notes in Computer Science ; 5949 SP - 116 EP - 127 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Schiffer, Stefan A1 - Lakemeyer, Gerhard T1 - A Fuzzy Set Semantics for Qualitative Fluents in the Situation Calculus / Ferrein, Alexander ; Schiffer, Stefan ; Lakemeyer, Gerhard JF - Intelligent Robotics and Applications : First International Conference, ICIRA 2008 Wuhan, China, October 15-17, 2008 Proceedings, Part I Y1 - 2008 N1 - Lecture Notes in Computer Science ; 5314 SP - 498 EP - 509 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Dylla, Frank A1 - Lakemeyer, Gerhard A1 - Murray, Jan T1 - Approaching a formal soccer theory from behaviour specifications in robotic soccer / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard ; Murray, Jan ; Obst, Oliver ; Röfer, Thomas ; Schiffer, Stefan ; Stolzenburg, Frieder ; Visser, Ubbo ; Wagner, Tho JF - Computers in sport / editors: P Dabnichki Y1 - 2008 SN - 978-1-8456-4064-4 SP - 161 EP - 185 PB - WIT Press CY - Southampton ER - TY - JOUR A1 - Ferrein, Alexander T1 - Logic-based robot control in highly dynamic domains / Ferrein, Alexander ; Lakemeyer, Gerhard JF - Robotics and Autonomous Systems. 56 (2008), H. 11 Y1 - 2008 SN - 0921-8890 SP - 980 EP - 991 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Mies, Christoph A1 - Lakemeyer, Gerhard T1 - Repairing Decision-Theoretic Policies Using Goal-Oriented Planning / Mies, Christoph ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - KI 2008: Advances in Artificial Intelligence : 31st Annual German Conference on AI, KI 2008, Kaiserslautern, Germany, September 23-26, 2008. Proceedings Y1 - 2008 SN - 978-3-540-85844-7 N1 - Lecture Notes in Computer Science ; 5243 SP - 267 EP - 275 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Beck, Daniel A1 - Lakemeyer, Gerhard T1 - A Simulation Environment for Middle-Size Robots with Multi-level Abstraction / Beck, Daniel ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - RoboCup 2007: Robot Soccer World Cup XI Y1 - 2007 SN - 978-3-540-68846-4 N1 - Lecture Notes in Computer Science ; 5001 SP - 136 EP - 147 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Böhnstedt, Lutz A1 - Lakemeyer, Gerhard T1 - Options in readylog reloaded -- generating decision-theoretic plan libraries in golog / Böhnstedt, Lutz ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - KI 2007: advances in artificial intelligence : 30th Annual German Conference on AI, KI 2007, Osnabrück, Germany, September 10 - 13, 2007 ; proceedings Y1 - 2007 SN - 978-3-540-74564-8 N1 - Lecture Notes in Computer Science ; 4667 SP - 352 EP - 366 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Hermanns, Lutz A1 - Lakemeyer, Gerhard T1 - Comparing Sensor Fusion Techniques for Ball Position Estimation / Ferrein, Alexander ; Hermanns, Lutz ; Lakemeyer, Gerhard JF - RoboCup 2005: Robot Soccer World Cup IX Y1 - 2006 SN - 978-3-540-35437-6 N1 - Lecture Notes in Computer Science ; 4020 SP - 154 EP - 165 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Schiffer, Stefan A1 - Lakemeyer, Gerhard T1 - Football is coming Home / Schiffer, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - PCAR '06 Proceedings of the 2006 international symposium on Practical cognitive agents and robots Y1 - 2006 SN - 1-74052-130-7 SP - 39 EP - 50 PB - ACM CY - New York, NY ER - TY - JOUR A1 - Ferrein, Alexander A1 - Strack, Andreas A1 - Lakemeyer, Gerhard T1 - Laser-Based Localization with Sparse Landmarks / Strack, Andreas ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - RoboCup 2005: Robot Soccer World Cup IX Y1 - 2006 SN - 978-3-540-35437-6 N1 - Lecture Notes in Computer Science ; 4020 SP - 569 EP - 576 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Schiffer, Stefan A1 - Lakemeyer, Gerhard T1 - Qualitative World Models for Soccer Robots / Schiffer, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - Qualitative constraint calculi : application and integration ; KI 2006, 14 - 19 June 2006, Bremen, Germany ; 29th Annual German Conference on Artificial Intelligence ; workshop / Stefan Wölfl ... (eds.) Y1 - 2006 SN - 3-88722-666-6 SP - 3 EP - 14 PB - Univ. CY - Bremen ER - TY - JOUR A1 - Ferrein, Alexander A1 - Jacobs, Stefan A1 - Lakemeyer, Gerhard T1 - Controlling Unreal Tournament 2004 Bots with the logic-based action language Golog / Jacobs, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - Proceedings of the First AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment (AIIDE). Y1 - 2005 SP - 151 EP - 152 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Dylla, Frank A1 - Lakemeyer, Gerhard A1 - Murray, Jan T1 - Towards a League-Independent Qualitative Soccer Theory for RoboCup / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard ; Murray, Jan ; Obst, Oliver ; Röfer, Thomas ; Stolzenburg, Frieder ; Visser, Ubbo JF - RoboCup 2004: Robot Soccer World Cup VIII / Daniele Nardi ... (ed.). Y1 - 2005 SN - 978-3-540-25046-8 N1 - Lecture Notes in Computer Science ; 3276 SP - 611 EP - 618 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander A1 - Jacobs, Stefan A1 - Lakemeyer, Gerhard T1 - Unreal Golog Bots / Jacobs, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - IJCAI-05 Workshop on Reasoning, Representation, and Learning in Computer Games Y1 - 2005 SP - 31 EP - 36 ER - TY - JOUR A1 - Gspandl, Stephan A1 - Pill, Ingo A1 - Reip, Michael A1 - Steinbauer, Gerald A1 - Ferrein, Alexander T1 - Belief Management for High-Level Robot Programs JF - Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence [electronic resource] : Barcelona, Catalonia, Spain, 16 - 22 July 2011 / sponsored by International Joint Conferences on Artificial Intelligence (IJCAI) and the Association for the Advancement of Artificial Intelligence (AAAI). Ed. by Toby Walsh Y1 - 2011 N1 - International Joint Conference on Artificial Intelligence ; (22 : ; 2011.07.16-22 : ; Barcelona, Spain) ; IJCAI ; (22 : ; 2011.07.16-22 : ; Barcelona, Spain) SP - 900 EP - 905 ER - TY - JOUR A1 - Schiffer, Stefan A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - Reasoning with Qualitative Positional Information for Domestic Domains in the Situation Calculus JF - Journal of Intelligent & Robotic Systems Y1 - 2011 SN - 0921-0296 VL - 63 IS - 2 SP - 273 EP - 300 PB - Springer CY - Berlin ER - TY - JOUR A1 - Niemüller, Tim A1 - Ferrein, Alexander A1 - Eckel, Gerhard A1 - Pirro, David A1 - Podbregar, Patrick A1 - Kellner, Tobias A1 - Rath, Christoph A1 - Steinbauer, Gerald T1 - Providing Ground-truth Data for the Nao Robot Platform JF - RoboCup 2010: Robot Soccer World Cup XIV Y1 - 2011 SN - 978-3-642-20217-9 N1 - Lecture Notes in Computer Science ; 6556 SP - 133 EP - 144 PB - Springer CY - Berlin 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 - Niemüller, Tim A1 - Ferrein, Alexander A1 - Beck, Daniel A1 - Lakemeyer, Gerhard T1 - Design Principles of the Component-Based Robot Software Framework Fawkes JF - Simulation, Modeling, and Programming for Autonomous Robots Y1 - 2010 N1 - Lecture Notes in Computer Science ; 6472 ; Second International Conference, SIMPAR 2010, Darmstadt, Germany, November 15-18, 2010. Proceedings SP - 300 EP - 311 ER - TY - JOUR A1 - Niemüller, Tim A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - A Lua-based Behavior Engine for Controlling the Humanoid Robot Nao JF - RoboCup 2009: Robot Soccer World Cup XIII Y1 - 2010 N1 - Lecture Notes in Computer Science ; 5949 SP - 240 EP - 251 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Siebel, Nils T. A1 - Steinbauer, Gerald T1 - Hybrid control for autonomous systems — Integrating learning, deliberation and reactive control JF - Robotics and Autonomous Systems Y1 - 2010 SN - 0921-8890 VL - 58 IS - 9 SP - 1037 EP - 1038 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Steinbauer, Gerald T1 - On the Way to High-Level Programming for Resource-Limited Embedded Systems with Golog JF - Simulation, Modeling, and Programming for Autonomous Robots Y1 - 2010 N1 - Lecture Notes in Computer Science ; 6472 ; Second International Conference, SIMPAR 2010, Darmstadt, Germany, November 15-18, 2010. Proceedings SP - 229 EP - 240 ER - TY - JOUR A1 - Ferrein, Alexander T1 - Robot controllers for highly dynamic environments with real-time constraints JF - Künstliche Intelligenz : KI. 24 (2010), H. 2 Y1 - 2010 SN - 1610-1987 SP - 175 EP - 178 ER - TY - JOUR A1 - Rens, Gavin A1 - Varzinczak, Ivan A1 - Meyer, Thomas A1 - Ferrein, Alexander T1 - A Logic for Reasoning about Actions and Explicit Observations JF - AI 2010: Advances in Artificial Intelligence 23rd Australasian Joint Conference, Adelaide, Australia, December 7-10, 2010. Proceedings Y1 - 2010 SN - 978-3-642-17431-5 N1 - Lecture Notes in Computer Science ; 6464 SP - 395 EP - 404 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander T1 - golog.lua: Towards a Non-Prolog Implementation of Golog for Embedded Systems Y1 - 2010 SP - 20 EP - 28 ER - TY - JOUR A1 - Booysen, Tracy A1 - Rieger, Michael A1 - Ferrein, Alexander T1 - Towards inexpensive robots for science & technology teaching and education in Africa Y1 - 2011 SN - 978-1-61284-992-8 N1 - AFRICON, 2011 SP - 1 EP - 6 PB - IEEE CY - New York ER - TY - JOUR A1 - Ferrein, Alexander A1 - Marais, Stephen A1 - Potgieter, Anet A1 - Steinbauer, Gerald T1 - RoboCup Junior: A vehicle for S&T education in Africa? Y1 - 2011 SN - 978-1-61284-992-8 N1 - AFRICON, 2011 SP - 1 EP - 6 PB - IEEE CY - New York ER - TY - JOUR A1 - Ferrein, Alexander A1 - Rens, Gavin A1 - Meyer, Thomas A1 - Lakemeyer, Gerhard T1 - A Logic for Specifying Partially Observable Stochastic Domains / Rens, Gavin ; Meyer, Thomas ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - Proceedings of the Ninth International Workshop pn non-Monotonic Reasoning, Action and Change (NRAC`11) Y1 - 2011 N1 - Technical Report RMIT-TR-11-02 SP - 15 EP - 22 ER - TY - JOUR A1 - Hartung, Frank A1 - Girod, Bernd A1 - Horn, Uwe T1 - Subband Image Coding / Girod, Bernd ; Hartung, Frank ; Horn, Uwe JF - Subband and Wavelet Transforms: Design and Applications / ed. by Ali N. Akansu Y1 - 1995 SN - 0792396456 SP - 213 EP - 250 PB - Kluwer CY - Boston ER - TY - JOUR A1 - Hartung, Frank T1 - Mobile DRM Introduction: The Need for Mobile DRM JF - Digital Rights Management : Technological, Economic, Legal and Political Aspects / Becker, Eberhard [u.a.] Y1 - 2003 N1 - Lecture Notes in Computer Science ; 2770 SP - 138 EP - 149 PB - Springer CY - Berlin ER - TY - JOUR A1 - Hartung, Frank A1 - Girod, Bernd T1 - Copyright protection in video delivery networks by watermarking of pre-compressed video / Hartung, Frank ; Girod, Bernd JF - Multimedia Applications, Services and Techniques - EMAST ´97 : Second European Conference Milan, Italy, May 21-23, 1997 Proceedings / Fdida, Serge ; Morganti, Michele Y1 - 1997 N1 - Lecture Notes in Computer Science ; 1242 SP - 423 EP - 436 PB - Springer CY - Berlin ER - TY - JOUR A1 - Hartung, Frank A1 - Ramme, F. T1 - Digital rights management and watermarking of multimedia content for m-commerce applications / Hartung, F. ; Ramme, F. JF - IEEE Communications Magazine. 38 (2000), H. 11 Y1 - 2000 SN - 0163-6804 N1 - ISS 2000 SP - 78 EP - 84 ER - TY - JOUR A1 - Hartung, Frank A1 - Girod, Bernd T1 - Statistical optimization of switched two-level quantizers with application to DPCM encoding of color video / Hartung, Frank ; Girod, Bernd JF - IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 Y1 - 1996 SN - 0-7803-3192-3 SP - 1974 EP - 1977 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Fritz, Christian A1 - Lakemeyer, Gerhard T1 - Using Golog for Deliberation and Team Coordination in Robotic Soccer / Ferrein, Alexander ; Fritz, Christian ; Lakemeyer, Gerhard JF - Künstliche Intelligenz : KI. 19 (2005), H. 1 Y1 - 2005 SN - 0933-1875 SP - 24 EP - 30 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Konur, Savas A1 - Lakemeyer, Gerhard T1 - Learning Decision Trees for Action Selection in Soccer Agents / Konur, Savas ; Ferrein, Alexander ; Lakemeyer, Gerhard Y1 - 2004 N1 - Proceedings of Workshop on Agents in dynamic and real-time environments SP - 1 EP - 7 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Fritz, Christian A1 - Lakemeyer, Gerhard T1 - On-Line Decision-Theoretic Golog for Unpredictable Domains / Ferrein, Alexander ; Fritz, Christian ; Lakemeyer, Gerhard JF - KI 2004: Advances in Artificial Intelligence : 27th Annual German Conference on AI, KI 2004, Ulm, Germany, September 20-24, 2004. Proceedings Y1 - 2004 N1 - Lecture Notes in Computer Science ; 3238 SP - 322 EP - 336 PB - Springer CY - Berlin ER - TY - JOUR A1 - Ferrein, Alexander T1 - Specifying Soccer Moves with Golog JF - Book of abstracts : Cologne, 15 - 17 September 2004 / 1st International Working Conference IT and Sport & 5th conference DVS-Section Computer Science in Sport Y1 - 2005 SN - 3-00-014576-1 N1 - International Working Conference IT and Sport 1, 2004, Köln ; Deutsche Vereinigung für Sportwissenschaft SP - 161 EP - 165 PB - German Sport Univ. CY - Köln 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 - TY - JOUR A1 - Ferrein, Alexander A1 - Dylla, Frank A1 - Lakemeyer, Gerhard T1 - Specifying Multirobot Coordination in ICPGolog - From Simulation towards Real Robots / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard Y1 - 2003 N1 - AOS-4 at IJCAI-03 SP - 1 EP - 10 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Dylla, Frank A1 - Lakemeyer, Gerhard T1 - Acting and Deliberating using Golog in Robotic Soccer - A Hybrid Architecture / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard JF - Proc. 3rd International Cognitive Robotics Workshop (CogRob 2002) Y1 - 2002 SP - 1 EP - 7 ER - TY - JOUR A1 - Ferrein, Alexander T1 - golog.lua: Towards a Non-Prolog Implementation of Golog for Embedded Systems JF - Cognitive Robotics / Lakemeyer, Gerhard (ed.) Y1 - 2010 N1 - Dagstuhl Seminar Proceedings ; 10081 SP - 1 EP - 15 ER - TY - JOUR A1 - Heuermann, Holger A1 - Hillebrand, Jürgen A1 - Sadeghfam, Arash T1 - Novel Concept of a Digital SigmaDelta-PLL-Phase-Shift-Modulator / Hillebrand, Jürgen ; Sadeghfam, Arash ; Heuermann, Holger Y1 - 2008 SN - 978-3-8007-3086-5 N1 - Microwave Conference (GeMIC), 2008 German SP - 123 EP - 126 ER - TY - JOUR A1 - Wolf, Martin A1 - Foltz, Christian A1 - Schlick, Christopher A1 - Luczak, Holger T1 - Empirical Investigation of a workspace model for Chemical engineers / Wolf, Martin ; Foltz, Christian ; Schlick, Christopher ; Luczak, Holger JF - Proceedings of the Human Factors and Ergonomics Society Annual Meeting July 2000. 44 (2000), H. 6 Y1 - 2000 N1 - Proceedings of the IEA 2000/HFES 2000 Congress SP - 612 EP - 615 PB - - ER - TY - JOUR A1 - Hüning, Felix A1 - Wilke, I. A1 - Nakielski, G. A1 - Kotzler, J. T1 - Dynamic conductivity of YBCO thin films from low to very high frequencies / Wilke, I. ; Nakielski, G. ; Kotzler, J. ; Subke, K. O. ; Jaekel, C. ; Hüning, F. ; Roskos, H. G. ; Kurz, Heinrich JF - Applied superconductivity 1997 : proceedings of EUCAS 1997, the Third European Conference on Applied Superconductivity, held in the Netherlands, 30 June - 3 July 1997 / ed. by H. Rogalla Y1 - 1997 SN - 0-7503-0487-1 N1 - Institute of Physics conference series 158 SP - 121 EP - 124 PB - IOP CY - Bristol ER - TY - JOUR A1 - Hüning, Felix A1 - Leineweber, A. A1 - Jacobs, H. A1 - Lueken, H. T1 - ε-Fe3N: magnetic structure, magnetization and temperature dependent disorder of nitrogen / Leineweber, A. ; Jacobs, H. ; Hüning, F. ; Lueken, H. ; Schilder, H. ; Kockelmann, W. JF - Journal of Alloys and Compounds. 288 (1999), H. 1-2 N2 - ε-Fe3N has been investigated by time-of-flight neutron diffraction (temperature range 4.2–618 K) and SQUID magnetometry (2–700 K, B≤5 T). A ferromagnetic spin structure is observed with magnetic moments oriented perpendicular to the c-axis of the hexagonal nuclear structure. The magnetic saturation moment of iron is 2.2 μB at 4.2 K from neutron diffraction and 2.0 μB from magnetic measurements and decreases in a Brillouin-like manner on heating to TC=575 K. Above 450 K an increasing but reversible disorder of the nitrogen partial structure is observed. Y1 - 1999 SN - 1873-4669 VL - 288 IS - 1-2 SP - 79 EP - 87 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Hüning, Felix A1 - Leineweber, A. A1 - Jacobs, H. A1 - Lueken, H. T1 - Nitrogen Ordering and ferromagnetic properties of -Fe3N1+x (0.10  x  0.39) and -Fe3(N0.80C0.20)1.38 / Leineweber, A. ; Jacobs, H. ; Hüning, F. ; Lueken, H. ; Kockelmann, W. JF - Journal of Alloys and Compounds. 316 (2001), H. 1-2 Y1 - 2001 SN - 1873-4669 SP - 21 EP - 38 PB - - ER - TY - JOUR A1 - Hüning, Felix A1 - Sparta, K. A1 - Redhammer, G. J. A1 - Roussel, P. T1 - Structural Phase Transition in the 2D Spin Dimer Compound SrCu2(BO3)2 / Sparta, K. ; Redhammer, G. J. ; Roussel, P. ; Heger, G. ; Roth, G. ; Ionescu, A. Lemmens, P. ; Grove, M. ; Güntherrodt, G. ; Hüning, F. ; Lueken, H. ; Kageyama, H. ; Onizuka, K ; Ueda JF - The European Physical Journal B - Condensed Matter and Complex Systems. 19 (2001), H. 4 Y1 - 2001 SN - 1434-6036 SP - 507 EP - 516 PB - - ER - TY - JOUR A1 - Hüning, Felix A1 - Luken, Heiko A1 - Schilder, Herbert A1 - Eifert, Thomas T1 - Magnetochemistry: Compounds and Concepts / Lueken, Heiko ; Schilder, Herbert ; Eifert, Thomas ; Handrick, Klaus ; Hüning, Felix JF - Advances in Solid State Physics. 201 (2001) Y1 - 2001 SP - 515 EP - 532 PB - - ER - TY - JOUR A1 - Hüning, Felix A1 - Eifert, T. A1 - Lueken, H. A1 - Schmidt, P. T1 - High-temperature series expansion of the magnetic susceptibility of extended magnetic systems in a complete computer implementation / Eifert, T. ; Hüning, F. ; Lueken, H. ; Schmidt, P. ; Thiele, G. JF - Chemical Physics Letters. 364 (2002), H. 1-2 Y1 - 2002 SN - 0009-2614 SP - 69 EP - 74 PB - - ER - TY - JOUR A1 - Hüning, Felix A1 - Jaekel, C. A1 - Francois, I. A1 - Kyas, G. T1 - Microwave surface impedance measurements on high-Tc superconductors / Jaekel, C. ; Francois, I. ; Kyas, G. ; Hüning, F. ; Roskos, H. G. ; Borghs, G. ; Kurz, H. JF - Czechoslovak Journal of Physics. 46 (1996), H. Suppl. 2 Y1 - 1996 SN - 1572-9486 IS - 46 SP - 1117 EP - 1118 PB - Springer Science+Business Media CY - Dordrecht ER - TY - JOUR A1 - Foltz, Christian A1 - Schneider, Nicole A1 - Wolf, Martin A1 - Kausch, Bernhard A1 - Schlick, Christopher A1 - Luczak, Holger ED - Nagl, Manfred T1 - Usability engineering JF - Collaborative and distributed chemical engineering : from understanding to substantial design process support; results of the IMPROVE Project. - (Lecture notes in computer science ; 4970) Y1 - 2008 SN - 978-3-540-70552-9 U6 - http://dx.doi.org/10.1007/978-3-540-70552-9_21 SP - 527 EP - 554 PB - Springer CY - Berlin ER - TY - JOUR A1 - Engels, Elmar A1 - Krauskopf, S. T1 - Innovation in Motion-Logic programming - a versatile interface JF - Proceedings to the 12th International Workshop on Research and Education in Mechatronics, REM 2011, Kocaeli, Turkey, 15.09.-16.09.2011 Y1 - 2011 SN - 978-975-8047-96-3 PB - - ER - TY - JOUR A1 - Wolf, Martin A1 - Foltz, Christian A1 - Schlick, Christopher A1 - Luczak, Holger T1 - Development and evaluation of a groupware system to support chemical design processes / Wolf, Martin ; Foltz, Christian ; Schlick, Christopher ; Luczak, Holger JF - International Journal of Human-Computer Interaction . 14 (2002), H. 2 Y1 - 2002 SN - 1044-7318 SP - 181 EP - 198 PB - - ER - TY - JOUR A1 - Wolf, Martin A1 - Foltz, Christian A1 - Killich, Stephan A1 - Schmidt, Ludger T1 - Task and Information Modeling for Cooperative Work / Foltz, Christian ; Killich, Stephan ; Wolf, Martin ; Schmidt, Ludger ; Luczak, Holger JF - Systems, social and internationalization design aspects of human-computer interaction / ed. by Michael J. Smith, Gavriel Salvendy Vol. 2 Y1 - 2001 SN - 0-8058-3608-X N1 - International Conference on Human Computer Interaction 9, 2001, New Orleans, La. SP - 172 EP - 176 PB - - ER - TY - JOUR A1 - Wolf, Martin T1 - Groupware related task design JF - ACM SIGGROUP Bulletin. 21 (2000), H. 2 Y1 - 2000 SP - 5 EP - 8 PB - - ER - TY - JOUR A1 - Wolf, Martin A1 - Foltz, Christian A1 - Schlick, Christopher A1 - Luczak, Holger T1 - Groupware support for chemical process design / Wolf, M.; Foltz, C.; Schlick, C.; Luczak, H. JF - Human-computer interaction : proceedings of HCI International '99 (the 8th International Conference on Human-Computer Interaction), Munich, Germany, August 22 - 26, 1999 Y1 - 1999 N1 - HCI - International Conference on Human-Computer Interaction ; 8 (Munich, Germany) : 1999.08.22-26 ; in 2 Bänden SP - 343 EP - 347 PB - Erlbaum CY - Mahwah, NJ ER - TY - JOUR A1 - Hüning, Felix A1 - Eifert, T. A1 - Handrick, K. A1 - Neuhausen, U. T1 - Computational Magnetochemistry: Complementary Quantum Mechanical Tools / Eifert, T. ; Handrick, K. ; Hüning, F. ; Neuhausen, U. ; Schilder, H. ; Lueken, H. JF - Zeitschrift für Anorganische und Allgemeine Chemie (ZAAC) - Journal of Inorganic and General Chemistry . 632 (2006), H. 4 Y1 - 2006 SN - 1521-3749 SP - 521 EP - 529 PB - - ER - TY - JOUR A1 - Hüning, Felix A1 - Eifert, T. A1 - Handrick, K. A1 - Neuhausen, U. T1 - Computational Magnetochemistry: Complementary Quantum Mechanical Tools / Eifert, T. ; Handrick, K. ; Hüning, F. ; Neuhausen, U. ; Schilder, H. ; Lueken, H. JF - 20 Jahre Wilhelm-Klemm-Stiftung / Kuratorium der Wilhelm-Klemm-Stiftung (Hrsg.) Y1 - 2006 SN - 978-3-8322-5520-6 SP - 193ff PB - Shaker CY - Aachen ER - TY - JOUR A1 - Hüning, Felix T1 - Entwicklungstrends bei MOSFETs für den Automobilbereich JF - Elektronik-Industrie . 39 (2008), H. 5 Y1 - 2008 SN - 0174-5522 SP - 74 EP - 76 PB - - ER - TY - JOUR A1 - Hüning, Felix T1 - SMD packages for PowerMOSFETs in automotive applications – developments and trends JF - Automotive Designline Europe (2009) Y1 - 2009 PB - - ER - TY - JOUR A1 - Hüning, Felix T1 - Using Trench PowerMOSFETs in Linear Mode JF - Power Electronics Europe (2012) N2 - If we think about applications for modern Power MOSFETs using trench technology, running them in linear mode may not be top of the priority list. Yet there are multiple uses for Trench Power MOSFETs in linear mode. In fact, even turning the device on and off in switching applications is a form of linear operation. Also, these components can be run in linear mode to protect the device against voltage surges. This article will illustrate the factors that need to be considered for linear operation and show how Trench Power MOSFETs are suited to it. Y1 - 2012 SN - 1748-3530 SP - 27 EP - 29 PB - DFA Media CY - Tonbridge ER - TY - JOUR A1 - Wolf, Martin A1 - Luczak, Holger T1 - Computer Supported Communication and Cooperation – Making Information Aware / Luczak, H. ; Wolf, M. JF - Human-computer interaction : proceedings of HCI International '99 (the 8th International Conference on Human-Computer Interaction), Munich, Germany, August 22 - 26, 1999 Y1 - 1999 N1 - HCI - International Conference on Human-Computer Interaction ; 8 (Munich, Germany) : 1999.08.22-26 ; in 2 Bänden SP - 298 EP - 302 PB - Erlbaum CY - Mahwah, NJ ER - TY - JOUR A1 - Wolf, Martin 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 - Wolf, Martin A1 - Schlick, Christopher A1 - Springer, J. ED - Miyamoto, Hiroyuki T1 - The use of implicit communication mechanisms in desktop-teleconferencing-systems 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 - 193 EP - 194 PB - - CY - Tokyo ER - TY - JOUR A1 - Wolf, Martin A1 - Simon, S. A1 - Schlick, Christopher T1 - Qualitative and Quantitative Analysis of Cooperation / Wolf, M. ; Simon, S. ; Schlick, C. JF - Proceedings : May 26 - 29, 1998, Cannes (France) = Actes : 26 - 29 mai 1998 / INRIA, Institut National de Recherche en Informatique et en Automatique, Unité de recherche ... F. Darses ..., eds Y1 - 1998 N1 - COOP ; Institut National de Recherche en Informatique et en Automatique ; Centre ; (Sophia Antipolis) ; International Conference on the Design of Cooperative Systems ; (3 ; 1998.05.26-29 ; Cannes) ; Conference Internationale sur la Conception de Systèmes Coopératifs ; (3 ; 1998.05.26-29 ; Cannes) ; COOP ; (3 ; 1998.05.26-29 ; Cannes) SP - 1 EP - 5 PB - - CY - Cannes ER - TY - JOUR A1 - Schiffer, Stefan A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - Caesar: an intelligent domestic service robot JF - Intelligent service robotics N2 - In this paper we present CAESAR, an intelligent domestic service robot. In domestic settings for service robots complex tasks have to be accomplished. Those tasks benefit from deliberation, from robust action execution and from flexible methods for human–robot interaction that account for qualitative notions used in natural language as well as human fallibility. Our robot CAESAR deploys AI techniques on several levels of its system architecture. On the low-level side, system modules for localization or navigation make, for instance, use of path-planning methods, heuristic search, and Bayesian filters. For face recognition and human–machine interaction, random trees and well-known methods from natural language processing are deployed. For deliberation, we use the robot programming and plan language READYLOG, which was developed for the high-level control of agents and robots; it allows combining programming the behaviour using planning to find a course of action. READYLOG is a variant of the robot programming language Golog. We extended READYLOG to be able to cope with qualitative notions of space frequently used by humans, such as “near” and “far”. This facilitates human–robot interaction by bridging the gap between human natural language and the numerical values needed by the robot. Further, we use READYLOG to increase the flexible interpretation of human commands with decision-theoretic planning. We give an overview of the different methods deployed in CAESAR and show the applicability of a system equipped with these AI techniques in domestic service robotics Y1 - 2012 U6 - http://dx.doi.org/10.1007/s11370-012-0118-y SN - 1861-2776 N1 - Special Issue on Artificial Intelligence Techniques for Robotics: Sensing, Representation and Action, Part I VL - 5 IS - 4 SP - 259 EP - 276 PB - Springer CY - Berlin ER - TY - JOUR A1 - Rens, Gavin A1 - Ferrein, Alexander T1 - Belief-node condensation for online POMDP algorithms N2 - Slightly extended version of the paper accepted at the Robotics and Artificial Intelligence Workshop, a special track of IEEE AFRICON-2013, held in Mauritius, 9-12 September 2013 Y1 - 2013 SP - 1 EP - 7 PB - IEEE CY - New York ER - TY - JOUR A1 - Ferrein, Alexander A1 - Meyer, Thomas T1 - A Brief Overview of Artificial Intelligence in South Africa JF - AI Magazine N2 - South Africa in recent years is the establishment of a number of research hubs involved in AI activities ranging from mobile robotics and computational intelligence, to knowledge representation and reasoning, and human language technologies. In this survey we take the reader through a quick tour of the research being conducted at these hubs, and touch on an initiative to maintain and extend the current level of interest in AI research in the country. Y1 - 2012 U6 - http://dx.doi.org/10.1609/aimag.v33i1.2357 SN - 0738-4602 VL - 33 IS - 1 SP - 99 EP - 101 PB - AAAI CY - Menlo Park ER - TY - JOUR A1 - Jens, Otto A1 - Kaldenhoff, E. A1 - Kirschner-Hermanns, R. A1 - Mühl, Thomas A1 - Klinge, Uwe T1 - Elongation of textile pelvic floor implants under load is related to complete loss of effective porosity, thereby favoring incorporation in scar plates JF - Journal of biomedical materials research. Part A N2 - Use of textile structures for reinforcement of pelvic floor structures has to consider mechanical forces to the implant, which are quite different to the tension free conditions of the abdominal wall. Thus, biomechanical analysis of textile devices has to include the impact of strain on stretchability and effective porosity. Prolift® and Prolift + M®, developed for tension free conditions, were tested by measuring stretchability and effective porosity applying mechanical strain. For comparison, we used Dynamesh-PR4®, which was designed for pelvic floor repair to withstand mechanical strain. Prolift® at rest showed moderate porosity with little stretchability but complete loss of effective porosity at strain of 4.9 N/cm. Prolift + M® revealed an increased porosity at rest, but at strain showed high stretchability, with subsequent loss of effective porosity at strain of 2.5 N/cm. Dynamesh PR4® preserved its high porosity even under strain, but as consequence of limited stretchability. Though in tension free conditions Prolift® and Prolift + M® can be considered as large pore class I meshes, application of mechanical strain rapidly lead to collapse of pores. The loss of porosity at mechanical stress can be prevented by constructions with high structural stability. Assessment of porosity under strain was found helpful to define requirements for pelvic floor devices. Clinical studies have to prove whether devices with high porosity as well as high structural stability can improve the patients' outcome. Y1 - 2014 U6 - http://dx.doi.org/10.1002/jbm.a.34767 SN - 1552-4965 VL - 102 IS - 4 SP - 1079 EP - 1084 PB - Wiley CY - New York ER - TY - JOUR A1 - Niemüller, Tim A1 - Lakemeyer, Gerhard A1 - Ferrein, Alexander A1 - Reuter, S. A1 - Ewert, D. A1 - Jeschke, S. A1 - Pensky, D. A1 - Karras, Ulrich T1 - Proposal for advancements to the LLSF in 2014 and beyond Y1 - 2013 SP - Publ. online ER - TY - JOUR A1 - Brück, Stefan A1 - Sorger, Ulrich A1 - Gligorevic, Snjezana A1 - Stolte, Norbert T1 - Interleaving for outer convolutional codes in DS-CDMA systems JF - IEEE transactions on communications Y1 - 2000 SN - 0090-6778 VL - Vol. 48 IS - Iss. 7 SP - 1100 EP - 1107 ER - TY - JOUR A1 - Ferrein, Alexander T1 - Towards applying soccer moves in the RoboCup Standard Platform League JF - ÖGAI-Journal Y1 - 2008 SN - 0254-4326 VL - Bd. 27 IS - H. 3 SP - 4 EP - 9 ER - TY - JOUR A1 - Gligorevic, Snjezana T1 - Joint channel estimation and equalisation of fast time-varying frequency-selective channels JF - European transactions on telecommunications Y1 - 2008 SN - 1541-8251; 2161-3915; 1120-3862; 1124-318X VL - Vol. 19 IS - Iss. 1 SP - 1 EP - 13 ER - TY - JOUR A1 - Gligorevic, Snjezana T1 - Airport surface propagation channel in the C-Band: measurements and modeling JF - IEEE transactions on antennas and propagation Y1 - 2013 SN - 0018-926x VL - Vol. 61 IS - Iss. 9 SP - 4792 EP - 4802 PB - IEEE CY - New York ER - TY - JOUR A1 - Ferrein, Alexander A1 - Steinbauer, Gerald A1 - McPhillips, Graeme A1 - Potgieter, Anet T1 - RoboCup Standard Platform League - Team Zadeat : an intercontinental research effort Y1 - 2008 SP - 1 EP - 7 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Steinbauer, Gerald A1 - McPhillips, Graeme A1 - Potgieter, Anet T1 - Establishing the RoboCup Standard League in Africa - applying for the RoboCup Standard League with a German-Austrian-South African Research Project Y1 - 2007 SP - 1 EP - 5 ER - TY - JOUR A1 - Vorst, Phillip A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - AllemaniACs3D team description Y1 - 2006 SP - 1 EP - 6 ER - TY - JOUR A1 - Beck, Daniel A1 - Buchleitner, Martin A1 - Ferrein, Alexander A1 - Niemüller, Tim A1 - Steinbauer, Gerald T1 - Mostly Harmless & AllemaniACs - mixed innovations Y1 - 2014 SP - 1 EP - 8 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Steinbauer, Gerald A1 - McPhillips, Graeme A1 - Niemüller, Tim A1 - Potgieter, Anet T1 - Team Zadeat 2009 : team report Y1 - 2009 VL - 6 SP - 1 ER - TY - JOUR A1 - Holtrup, S. A1 - Sadeghfam, Arash A1 - Heuermann, Holger A1 - Awakowicz, P. T1 - Characterization and optimization technique for microwave-driven high-intensity discharge lamps using hot S-parameters JF - IEEE transactions on microwave theories and techniques N2 - High-intensity discharge lamps can be driven by radio-frequency signals in the ISM frequency band at 2.45 GHz, using a matching network to transform the impedance of the plasma to the source impedance. To achieve an optimal operating condition, a good characterization of the lamp in terms of radio frequency equivalent circuits under operating conditions is necessary, enabling the design of an efficient matching network. This paper presents the characterization technique for such lamps and presents the design of the required matching network. For the characterization, a high-intensity discharge lamp was driven by a monofrequent large signal at 2.45 GHz, whereas a frequency sweep over 300 MHz was performed across this signal to measure so-called small-signal hot S-parameters using a vector network analyzer. These parameters are then used as an equivalent load in a circuit simulator to design an appropriate matching network. Using the measured data as a black-box model in the simulation results in a quick and efficient method to simulate and design efficient matching networks in spite of the complex plasma behavior. Furthermore, photometric analysis of high-intensity discharge lamps are carried out, comparing microwave operation to conventional operation. Y1 - 2014 U6 - http://dx.doi.org/10.1109/TMTT.2014.2342652 SN - 0018-9480 VL - 62 IS - 10 SP - 2471 EP - 2480 PB - IEEE CY - New York ER - TY - JOUR A1 - Alhwarin, Faraj A1 - Ferrein, Alexander A1 - Scholl, Ingrid T1 - IR stereo kinect: improving depth images by combining structured light with IR stereo Y1 - 2014 SP - 1 EP - 9 ER - TY - JOUR A1 - Bragard, Michael A1 - van Hoek, H. A1 - De Doncker, R. W. T1 - A major design step in IETO concept realization that allows overcurrent protection and pushes limits of switching performance JF - IEEE transactions on power electronics N2 - This paper presents the latest prototype of the integrated emitter turn-off thyristor concept, which potentially ranks among thyristor high-power devices like the gate turn-off thyristor and the integrated gate-commutated thyristor (IGCT). Due to modifications of the external driver stage and mechanical press-pack design optimization, this prototype allows for full device characterization. The turn-off capability was increased to 1600 A with an active silicon area of 823mm2 . This leads to a transient peak power of 672.1kW/cm² . Within this paper, measurements and concept assessment are presented and a comparison to state-of-the-art IGCT devices is provided. Y1 - 2012 U6 - http://dx.doi.org/10.1109/TPEL.2012.2189136 SN - 0885-8993 VL - 27 IS - 9 SP - 4163 EP - 4171 PB - IEEE CY - New York ER - TY - JOUR A1 - Köllensperger, P. A1 - Bragard, Michael A1 - Plum, T. A1 - De Doncker, R. W. T1 - The dual GCT : new high-power device using optimized GCT technology JF - IEEE transactions on industry applications Y1 - 2009 U6 - http://dx.doi.org/10.1109/TIA.2009.2027364 SN - 0093-9994 VL - 45 IS - 5 SP - 1754 EP - 1762 ER - TY - JOUR A1 - Bragard, Michael A1 - Conrad, M. A1 - van Hoek, H. A1 - De Doncker, R. W. T1 - The integrated emitter turn-off thyristor (IETO) : an innovative thyristor-based high power semiconductor device using MOS assisted turn-off JF - IEEE transactions on industry applications Y1 - 2011 U6 - http://dx.doi.org/10.1109/TIA.2011.2161432 SN - 0093-9994 VL - 47 IS - 5 SP - 2175 EP - 2182 PB - IEEE CY - New York ER - TY - JOUR A1 - Klinge, Uwe A1 - Otto, Jens A1 - Mühl, Thomas T1 - High Structural Stability of Textile Implants Prevents Pore Collapse and Preserves Effective Porosity at Strain JF - BioMed Research International Y1 - 2015 U6 - http://dx.doi.org/10.1155/2015/953209 SN - 2314-6133 (Print) SN - 2314-6141 (Online) N1 - Article ID: 953209 VL - 2015 ER - TY - JOUR A1 - Schiffer, Stefan A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - Abstracting Away Low-Level Details in Service Robotics with Fuzzy Fluents JF - Model-Driven Knowledge Engineering for Improved Software Modularity in Robotics and Automation. Workshop at European Robotics Forum 2015 Vienna, Austria, March 11-13, 2015. Y1 - 2015 SP - 1 EP - 4 ER - TY - JOUR A1 - Leingartner, Max A1 - Maurer, Johannes A1 - Ferrein, Alexander A1 - Steinbauer, Gerald T1 - Evaluation of Sensors and Mapping Approaches for Disasters in Tunnels JF - Journal of Field Robotics N2 - Ground or aerial robots equipped with advanced sensing technologies, such as three-dimensional laser scanners and advanced mapping algorithms, are deemed useful as a supporting technology for first responders. A great deal of excellent research in the field exists, but practical applications at real disaster sites are scarce. Many projects concentrate on equipping robots with advanced capabilities, such as autonomous exploration or object manipulation. In spite of this, realistic application areas for such robots are limited to teleoperated reconnaissance or search. In this paper, we investigate how well state-of-the-art and off-the-shelf components and algorithms are suited for reconnaissance in current disaster-relief scenarios. The basic idea is to make use of some of the most common sensors and deploy some widely used algorithms in a disaster situation, and to evaluate how well the components work for these scenarios. We acquired the sensor data from two field experiments, one from a disaster-relief operation in a motorway tunnel, and one from a mapping experiment in a partly closed down motorway tunnel. Based on these data, which we make publicly available, we evaluate state-of-the-art and off-the-shelf mapping approaches. In our analysis, we integrate opinions and replies from first responders as well as from some algorithm developers on the usefulness of the data and the limitations of the deployed approaches, respectively. We discuss the lessons we learned during the two missions. These lessons are interesting for the community working in similar areas of urban search and rescue, particularly reconnaissance and search. Y1 - 2016 U6 - http://dx.doi.org/10.1002/rob.21611 SN - 1556-4967 VL - 33 IS - 8 SP - 1037 EP - 1057 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Haag, S. A1 - Zontar, D. A1 - Schleupen, Josef A1 - Müller, T. A1 - Brecher, C. T1 - Chain of refined perception in self-optimizing assembly of micro-optical systems JF - Journal of sensors and sensor systems N2 - Today, the assembly of laser systems requires a large share of manual operations due to its complexity regarding the optimal alignment of optics. Although the feasibility of automated alignment of laser optics has been shown in research labs, the development effort for the automation of assembly does not meet economic requirements – especially for low-volume laser production. This paper presents a model-based and sensor-integrated assembly execution approach for flexible assembly cells consisting of a macro-positioner covering a large workspace and a compact micromanipulator with camera attached to the positioner. In order to make full use of available models from computer-aided design (CAD) and optical simulation, sensor systems at different levels of accuracy are used for matching perceived information with model data. This approach is named "chain of refined perception", and it allows for automated planning of complex assembly tasks along all major phases of assembly such as collision-free path planning, part feeding, and active and passive alignment. The focus of the paper is put on the in-process image-based metrology and information extraction used for identifying and calibrating local coordinate systems as well as the exploitation of that information for a part feeding process for micro-optics. Results will be presented regarding the processes of automated calibration of the robot camera as well as the local coordinate systems of part feeding area and robot base. Y1 - 2014 U6 - http://dx.doi.org/10.5194/jsss-3-87-2014 SN - 2194-878X VL - 3 IS - 1 SP - 87 EP - 95 PB - Copernicus Publ. CY - Göttingen ER -