TY - JOUR A1 - Alt, Helmut T1 - Statische oder dynamische Wirtschaftlichkeitsberechnung bei Investitionen zur Energieeinsparung JF - Elektrowärme international Edition B: Industrielle Elektrowärme : IEW = Industrial applications of electro-heat : EWI ; Zeitschrift für das gesamte Gebiet der Elektrowärme in Industrie, Gewerbe und Haushalt Y1 - 1982 SN - 0340-3521 VL - Jg. 40 IS - H. 3/4 SP - 166 EP - 172 ER - TY - JOUR A1 - Alt, Helmut T1 - Einsatz programmierbarer Rechner im Sondervertragskundenbereich der Gasversorgung JF - Das Gas- und Wasserfach : Ausgabe Gas, Erdgas : GWF Y1 - 1983 SN - 0016-4909 VL - Bd. 124 IS - H. 9 SP - 468 EP - 471 ER - TY - JOUR A1 - Alt, Helmut T1 - Intervallschalter mit getrennt einstellbarer Pulszeit und Pulszahl JF - Elektronik : Fachmedium für industrielle Anwender und Entwickler Y1 - 1978 SN - 0013-5658 VL - 27 IS - H. 14 SP - 76 PB - WEKA Fachmedien CY - Haar ER - TY - JOUR A1 - Alt, Helmut T1 - Auswertung von Belastungskennlinien JF - Elektrizitätswirtschaft Y1 - 1983 SN - 0013-5496 VL - Bd. 82 SP - 208 EP - 210 ER - TY - JOUR A1 - Alt, Helmut T1 - Vorteilsausgleich durch Versorgungsunternehmen für Ersatzleistungen Dritter JF - Elektrizitätswirtschaft Y1 - 1985 SN - 0013-5496 VL - Jg. 104 SP - 440 EP - 443 ER - TY - JOUR A1 - Alt, Helmut T1 - Multiplikativ oder additiv? Diskussionsbeitrag zu Preisanpassungsklauseln in der Gaswirtschaft JF - Energiewirtschaftliche Tagesfragen : et ; Zeitschrift für Energiewirtschaft, Recht, Technik und Umwelt Y1 - 1985 SN - 0013-743X VL - Jg. 35 SP - 609 EP - 611 ER - TY - JOUR A1 - Alt, Helmut T1 - Steuersenkungsgesetz-Auswirkungen und Berechnung JF - Elektrizitätswirtschaft Y1 - 1986 SN - 0013-5496 VL - Jg. 85 SP - 238 EP - 242 ER - TY - JOUR A1 - Alt, Helmut T1 - Dialoggesteuerte harmonische Analyse mit dem HP 41 JF - Elektrizitätswirtschaft Y1 - 1986 SN - 0013-5496 VL - Bd. 85 IS - H. 4 SP - 139 EP - 142 ER - TY - JOUR A1 - Alt, Helmut T1 - Dialoggesteuerte harmonische Analyse mit dem HP 41 JF - Elektrowärme international Edition B : Industrielle Elektrowärme : IEW = Industrial applications of electro-heat : EWI ; Zeitschr. für das gesamte Gebiet der Elektrowärme in Industrie, Gewerbe und Haushalt Y1 - 1986 SN - 0340-3521 VL - Jg. 44 IS - H. 6 SP - 283 EP - 287 ER - TY - JOUR A1 - Alt, Helmut T1 - Dialoggesteuerte Spannungs- und Belastungsberechnung im Netz eines Elektrizitätsversorgungsunternehmens JF - Elektrizitätswirtschaft Y1 - 1986 SN - 0013-5496 VL - Bd. 85 IS - H. 23 SP - 906 EP - 910 ER - TY - JOUR A1 - Alt, Helmut T1 - Effektivzinsberechnung bei industriellen oder gewerblichen Tilgungsdarlehen JF - Elektrizitätswirtschaft Y1 - 1987 SN - 0013-5496 VL - Bd. 86 SP - 592 EP - 595 ER - TY - JOUR A1 - Alt, Helmut T1 - Steuerreformgesetz 1990 JF - Elektrizitätswirtschaft Y1 - 1989 SN - 0013-5496 VL - Bd. 88 IS - H. 1/2 SP - 78 EP - 83 ER - TY - JOUR A1 - Alt, Helmut T1 - Steuersenkungs-Erweiterungsgesetz 1988 zur Gesamtentlastung der Einkommensteuer JF - Betriebs-Berater : BB ; Zeitschrift für Recht und Wirtschaft Y1 - 1987 SN - 0340-7918 VL - Vol. 42 IS - H. 32 SP - 2207 EP - 2208 ER - TY - JOUR A1 - Alt, Helmut T1 - Steuerreformgesetz 1990 JF - Elektrizitätswirtschaft Y1 - 1989 SN - 0947-0581 (E-Journal); 0340-7918 (Print) VL - Jg. 88 IS - H. 2 SP - 120 EP - 121 ER - TY - JOUR A1 - Alt, Helmut T1 - Energietarifstruktur in Ostdeutschland JF - Energiewirtschaftliche Tagesfragen : et ; Zeitschrift für Energiewirtschaft, Recht, Technik und Umwelt Y1 - 1990 SN - 0013-743X VL - Bd. 40 IS - H. 11 SP - 782 EP - 788 ER - TY - JOUR A1 - Alt, Helmut T1 - Effektivzins und APR JF - Die Bank : Zeitschrift für Bankpolitik und Bankpraxis Y1 - 1991 SN - 0342-3182 N1 - Printausg. in der Bibliothek vorhanden: 43 Z 227 VL - Jg. 31 IS - H. 4 SP - 230 EP - 231 ER - TY - JOUR A1 - Alt, Helmut T1 - Möglichkeiten der CO2-Minderung "alternativ" betrachtet JF - Etz : Elektrotechnik & Automation Y1 - 1992 SN - 0170-1711 VL - Bd. 113 IS - H. 6-7 SP - 400 ER - TY - JOUR A1 - Alt, Helmut T1 - Netzimpedanz- und Oberschwingungsberechnung in Netzen der öffentlichen Stromversorgung JF - Elektrizitätswirtschaft Y1 - 1995 SN - 0013-5496 VL - Bd. 94 IS - H. 4 SP - 166 EP - 174 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 - 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 - Alt, Helmut T1 - 1,45 Mrd. DM für die Kohlevergasung JF - Energiewirtschaftliche Tagesfragen Y1 - 1974 SN - 0720-6240 VL - 24 IS - 5 SP - 243 EP - 244 PB - VDE-Verlag CY - Berlin ER - TY - JOUR A1 - Alt, Helmut T1 - Renditevergleich zwischen Immobilien und Festverzinslichen JF - Die Bank Y1 - 1992 SN - 0342-3182 IS - H. 2 SP - 91 EP - 92 ER - TY - JOUR A1 - Alt, Helmut T1 - Elektro-Brikett-Zentralspeicherheizung soll die Spitzenlast der EVU schonen JF - Energiewirtschaftliche Tagesfragen Y1 - 1975 SN - 0720-6240 VL - 25 IS - 4 SP - 148 EP - 149 PB - VDE-Verlag CY - Berlin ER - TY - JOUR A1 - Alt, Helmut T1 - Ab 1975 Uranerz aus Rabbit-Lake JF - Energiewirtschaftliche Tagesfragen Y1 - 1974 SN - 0720-6240 VL - 24 IS - 1/2 SP - 34 PB - VDE-Verlag CY - Berlin 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 - Steinbauer, Gerald T1 - 20 Years of RoboCup - A Subjective Retrospection JF - KI - Künstliche Intelligenz N2 - This summer, RoboCup competitions were held for the 20th time in Leipzig, Germany. It was the second time that RoboCup took place in Germany, 10 years after the 2006 RoboCup in Bremen. In this article, we give an overview on the latest developments of RoboCup and what happened in the different leagues over the last decade. With its 20th edition, RoboCup clearly is a success story and a role model for robotics competitions. From our personal view point, we acknowledge this by giving a retrospection about what makes RoboCup such a success. Y1 - 2016 U6 - https://doi.org/10.1007/s13218-016-0449-5 SN - 1610-1987 VL - 30 IS - 3 SP - 225 EP - 232 PB - Springer CY - Berlin 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 - 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 - https://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 - Ritz, Thomas T1 - Information Channels JF - Information Technology. Nr. 52 (2000), H. 08. Mai 2000 Y1 - 2000 SP - 15 EP - 15 ER - TY - JOUR A1 - Ritz, Thomas A1 - Stender, Michael T1 - Mobilität meistern - Integration von mobilen Akteuren durch ad-hoc Integrationskonzepte JF - Wireless Technologien nutzbar machen: UMTS und alternative Netzwerktechnologien für innovative mobile Anwendungen in Vertrieb und Service Y1 - 2002 N1 - IAO-Forum 5. Juni 2002, Stuttgart ER - TY - JOUR A1 - Heuermann, Holger A1 - Schiek, Burkhard T1 - The double-LNN Calibration technique for scattering parameter measurements of microstrip devices JF - Conference proceedings Y1 - 1995 N1 - European Microwave Conference <25, 1995, Bologna> SP - 343 EP - 347 PB - NEXUS House CY - Kent ER - TY - JOUR A1 - Ritz, Thomas A1 - Stender, Michael ED - Weisbecker, Anette T1 - Ad-hoc Anwendungsintegration mit mobilen CRM-Systement JF - Electronic Business : Innovationen, Anwendungen und Technologien Y1 - 2004 SN - 3-8167-6621-8 SP - 92 EP - 97 PB - Fraunhofer-IRB-Verl. CY - Stuttgart ER - TY - JOUR A1 - Ferrein, Alexander A1 - Niemüller, Tim A1 - Steinbauer, Gerald T1 - Team Zadeat 2010 : application for participation Y1 - 2010 ER - TY - JOUR A1 - Heuermann, Holger T1 - Sure Methods of On-Wafer Scattering Parameter Measurements with Self-Calibration Procedures Y1 - 1996 N1 - 46th ARFTG conference digest : November 30 - December 1. 1995, Safari Resort, Scottsdale, Arizona / Automatic RF Techniques Group. [Publ. chairman: Ed. Godshalk] SP - 136 EP - 145 ER - TY - JOUR A1 - Hoffmann, Andreas A1 - Rohrbach, Felix A1 - Uhl, Matthias A1 - Ceblin, Maximilian A1 - Bauer, Thomas A1 - Mallah, Marcel A1 - Jacob, Timo A1 - Heuermann, Holger A1 - Kuehne, Alexander J. C. T1 - Atmospheric pressure plasma-jet treatment of polyacrylonitrile-nonwovens—Stabilization and roll-to-roll processing JF - Journal of Applied Polymer Science N2 - Carbon nanofiber nonwovens represent a powerful class of materials with prospective application in filtration technology or as electrodes with high surface area in batteries, fuel cells, and supercapacitors. While new precursor-to-carbon conversion processes have been explored to overcome productivity restrictions for carbon fiber tows, alternatives for the two-step thermal conversion of polyacrylonitrile precursors into carbon fiber nonwovens are absent. In this work, we develop a continuous roll-to-roll stabilization process using an atmospheric pressure microwave plasma jet. We explore the influence of various plasma-jet parameters on the morphology of the nonwoven and compare the stabilized nonwoven to thermally stabilized samples using scanning electron microscopy, differential scanning calorimetry, and infrared spectroscopy. We show that stabilization with a non-equilibrium plasma-jet can be twice as productive as the conventional thermal stabilization in a convection furnace, while producing electrodes of comparable electrochemical performance. KW - batteries and fuel cells KW - electrospinning KW - fibers KW - irradiation KW - porous materials Y1 - 2022 U6 - https://doi.org/10.1002/app.52887 SN - 0021-8995 (Print) SN - 1097-4628 (Online) N1 - Weitere Informationen: Bundesministerium für Bildung und Forschung, Fördernummer: 13XP5036E. Deutsche Forschungsgemeinschaft, Fördernummern: 390874152, 441209207, 327886311 VL - 139 IS - 37 SP - 1 EP - 9 PB - Wiley ER - TY - JOUR A1 - Ferrein, Alexander T1 - Autonome Entscheidungsfindung bei Robotern : Planwirtschaft JF - Linux-Magazin Y1 - 2004 SN - 1432-640X (Print) IS - 7 SP - 50 EP - 53 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 - Heuermann, Holger T1 - GSOLT: the calibration procedure for all multi-port vector network analyzers JF - IEEE MTT-S International Microwave Symposium digest : Philadelphia, Pennsylvania, 8 - 13 June 2003 ; [including: 2003 International Microwave Symposium digest, vol. 1-3, RF Integrated Circuit Symposium digest, Automatic RF Techniques Group Symposium digest . Vol. 3 Y1 - 2003 SN - 0-780-37696-X N1 - Nebent.: 2003 IEEE MTT-S International Microwave Symposium SP - 1815 EP - 1818 PB - IEEE CY - Piscataway, NJ ER - TY - JOUR A1 - Poppel, Kristin Isabel A1 - Wolf, Martin R. T1 - Möglichkeiten und Potentiale von Revisionsmarketing JF - Zeitschrift Interne Revision : ZIR ; Fachzeitschrift für Wissenschaft und Praxis Y1 - 2013 SN - 0044-3816 VL - 48 IS - 4 SP - 200 EP - 208 PB - Erich Schmidt Verlag CY - Berlin ER - TY - JOUR A1 - Heuermann, Holger T1 - Microwave On-Wafer Measurements with Activ Needle Probe Tips Y1 - 1997 N1 - 47th ARFTG Conference digest : June 20 - 21, 1996, Moscone Convention Center, San Francisco, California / Automatic RF Techniques Group. [Publication chair: Ed Godshalk SP - 208 EP - 214 ER - TY - JOUR A1 - Heuermann, Holger A1 - Lünebach, M. T1 - A Novel Dual-Mode-Design for Push-Push Oscillators with Improved Phase Noise Performance. Heuermann, Holger; Lünebach, M. JF - Conference proceedings : 3 - 7 October 2005, CNIT la Défense, Paris, France; [comprises the] 35th European Microwave Conference 2005 ; The European Conference on Wireless Technology 2005 ; European Radar Conference 2005 ; GAAS 2005, The European Gallium A. Vol. 1 Y1 - 2005 SN - 2-9600551-0-1 N1 - European Microwave Conference ; (35, 2005, Paris) ; European Microwave Week ; (2005, Paris) SP - 4 pp. PB - Horizon House Publ CY - London ER - TY - JOUR A1 - Ritz, Thomas T1 - Modelling Production of personalized information services and their delivery on multiple distribution channels JF - Personalization Techniques in Electronic Publishing on the Web. Workshop in the Framework of the 2nd international conference on Adaptive Hypermedia and adaptive web based systems (AH2002) in Malaga (ES) Y1 - 2002 N1 - AH <2, 2002, Málaga> SP - 19 EP - 30 ER - TY - JOUR A1 - Ritz, Thomas A1 - Benz, Axel ED - Spath, Dieter T1 - Informationserfassung im Außendienst JF - CRM-Systeme in produzierenden Unternehmen. - (IAO-Forum : mit Anwenderberichten) Y1 - 2004 N1 - Fraunhofer IAO Forum 31. März 2004 VL - 2004 PB - IRB-Verl. CY - Stuttgart ER - TY - JOUR A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - Wie Roboter die Welt sehen : Roboterfußball im Dienst der Wissenschaft / Ferrein, Alexander ; Lakemeyer, Gerhard JF - Bild und Erkenntnis : Formen und Funktionen des Bildes in Wissenschaft und Technik / RWTH. Andreas Beyer ; Markus Lohoff (Hrsg.) Y1 - 2005 SN - 3-422-06463-X SP - 360 EP - 361 PB - Deutscher Kunstverlag CY - München 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 - Heuermann, Holger T1 - Multiport S-parameter calculation from two-port network analyzer measurements with or without switch matrix JF - ARFTG Conference, 2006 67th, San Francisco, CA Y1 - 2006 SN - 978-0-7803-9529-9 SP - 219 EP - 222 ER - TY - JOUR A1 - Heuermann, Holger A1 - Erkens, H. T1 - Novel RF switch concepts for differential wireless communications frontends. Erkens, H.; Heuermann, H. JF - IEEE Transactions on Microwave Theory and Techniques. 54 (2006), H. 6, Part 1 Y1 - 2006 SN - 0018-9480 SP - 2376 EP - 2382 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - Roboterfußball - Wissenschaft, die auch Spass macht / Ferrein, Alexander ; Lakemeyer, Gerhard JF - RWTH Themen (2006) Y1 - 2006 SN - 0179-079X SP - 36 EP - 39 ER - TY - JOUR A1 - Heuermann, Holger T1 - Verringerung des Phasenrauschens von Oszillatoren durch Dual-Mode-Resonatoren JF - HF-Report. 20 (2006), H. 5-6 Y1 - 2006 SN - 1431-827X SP - 43 EP - 48 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 - 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 - Heuermann, Holger A1 - Schiek, Burkhard T1 - Calibration of network analyser measurements with leakage errors JF - Electronics letters. 30 (1994), H. 1 Y1 - 1994 SN - 0013-5194 SP - 52 EP - 53 ER - TY - JOUR A1 - Limpert, Nicolas A1 - Wiesen, Patrick A1 - Ferrein, Alexander A1 - Kallweit, Stephan A1 - Schiffer, Stefan T1 - The ROSIN Project and its Outreach to South Africa JF - R&D Journal Y1 - 2019 VL - 35 SP - 1 EP - 6 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Schiffer, Stefan A1 - Booysen, T. A1 - Stopforth, R. T1 - Why it is harder to run RoboCup in South Africa: Experiences from German South African collaborations JF - International Journal of Advanced Robotic Systems N2 - Robots are widely used as a vehicle to spark interest in science and technology in learners. A number of initiatives focus on this issue, for instance, the Roberta Initiative, the FIRST Lego League, the World Robot Olympiad and RoboCup Junior. Robotic competitions are valuable not only for school learners but also for university students, as the RoboCup initiative shows. Besides technical skills, the students get some project exposure and experience what it means to finish their tasks on time. But qualifying students for future high-tech areas should not only be for students from developed countries. In this article, we present our experiences with research and education in robotics within the RoboCup initiative, in Germany and South Africa; we report on our experiences with trying to get the RoboCup initiative in South Africa going. RoboCup has a huge support base of academic institutions in Germany; this is not the case in South Africa. We present our ‘north–south’ collaboration initiatives in RoboCup between Germany and South Africa and discuss some of the reasons why we think it is harder to run RoboCup in South Africa. Y1 - 2016 U6 - https://doi.org/10.1177/1729881416662789 SN - 1729-8806 VL - 13 IS - 5 SP - 1 EP - 13 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 - Hüning, Felix A1 - Heuermann, Holger A1 - Wache, Franz-Josef T1 - Wireless CAN without WLAN or Bluetooth JF - CAN Newsletter N2 - In two developed concepts, dual-mode radio enables CAN participants to be integrated wirelessly into a CAN network. Constructed from a few components, a protocol-free, real-time transmission and thus transparent integration into CAN is provided. Y1 - 2018 IS - December 2018 SP - 44 EP - 46 ER - TY - JOUR A1 - Ferrein, Alexander A1 - Calmes, Laurent A1 - Lakemeyer, Gerhard A1 - Wagner, Hermann T1 - Von Schleiereulen und fussballspielenden Robotern / Calmes, Laurent ; Ferrein, Alexander ; Lakemeyer, Gerhard ; Wagner, Hermann JF - RWTH Themen (2006) Y1 - 2006 SN - 0179-079X SP - 30 EP - 33 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 - Vorst, Phillip A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - AllemaniACs3D team description Y1 - 2006 SP - 1 EP - 6 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 - Heuermann, Holger A1 - Ibrahim, Irfan A1 - Hillebrand, J. T1 - Vector-Signal-Generator with Two ¿¿-PLL's / Ibrahim, I. ; Hillebrand, J. ; Heuermann, H. JF - European Conference on Wireless Technologies, 2007. ECWT 2007 ; 8 - 10 October 2007 Munich, Germany Y1 - 2007 SN - 978-2-87487-003-3 SP - 1 EP - 4 ER - TY - JOUR A1 - Hofmann, Till A1 - Limpert, Nicolas A1 - Mataré, Victor A1 - Schönitz, Sebastian A1 - Niemueller, Tim A1 - Ferrein, Alexander A1 - Lakemeyer, Gerhard T1 - The Carologistics RoboCup Logistics Team 2018 N2 - The Carologistics team participates in the RoboCup Logistics League for the seventh year. The RCLL requires precise vision, manipulation and path planning, as well as complex high-level decision making and multi-robot coordination. We outline our approach with an emphasis on recent modifications to those components. The team members in 2018 are David Bosen, Christoph Gollok, Mostafa Gomaa, Daniel Habering, Till Hofmann, Nicolas Limpert, Sebastian Schönitz, Morian Sonnet, Carsten Stoffels, and Tarik Viehmann. This paper is based on the last year’s team description. Y1 - 2018 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 - Wolf, Martin R. 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 - 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 - Wolf, Martin R. T1 - Groupware related task design JF - ACM SIGGROUP Bulletin N2 - his report summarizes the results of a workshop on Groupware related task design which took place at the International Conference on Supporting Group Work Group'99, Arizona, from 14 th to 17 th November 1999. The workshop was addressed to people from different viewpoints, backgrounds, and domains: - Researchers dealing with questions of task analysis and task modeling for Groupware application from an academic point of view. They may contribute modelbased design approaches or theoretically oriented work - Practitioners with experience in the design and everyday use of groupware systems. They might refer to the practical side of the topic: "real" tasks, "real" problems, "real" users, etc. Y1 - 2000 U6 - https://doi.org/10.1145/605660.605662 SN - 2372-7403 VL - 21 IS - 2 SP - 5 EP - 8 ER - TY - JOUR A1 - Heuermann, Holger A1 - Stolle, Reinhard A1 - Schiek, Burkhard T1 - Novel Algorithms for FMCW Range Finding with Microwaves. Stolle, R.; Heuermann, H.; Schiek, B. Y1 - 1995 N1 - Conference proceedings / IEEE NTC '95, the Microwave Systems Conference; NTC <1995, Orlando, Fla.> SP - 129 EP - 132 ER - TY - JOUR A1 - Heuermann, Holger A1 - Baumann, F.-M. A1 - Fauth, G. A1 - Albert, M. T1 - Results of Network Analyzer Measurements with Leakage Errors Corrected with the TMS-15-Term Procedure JF - On-Line Moisture Analysis of Raw Coal Y1 - 1994 N1 - 1993 International Symposium on On-Line Analysis of Coal : Vienna ; [proceedings]. SP - 1361 EP - 1364 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 - Heuermann, Holger A1 - Schiek, Burkhard T1 - Results of Network Analyzer Measurements with Leakage Errors Corrected with the TMS-15-Term Procedure Y1 - 1994 N1 - 1994 IEEE MTT-S International Microwave Symposium digest : May 23 - 27, 1994, San Diego Convention Center, San Diego, California / H. J. Kuno, ed. SP - 1361 EP - 1364 ER - TY - JOUR A1 - Heuermann, Holger T1 - Praezise Streuparametermessungen sind der Schluessel zur Modellierung elektrischer Schaltungen JF - Neues von Rohde & Schwarz (1997) Y1 - 1997 SP - 22 EP - 23 ER - TY - JOUR A1 - Schopp, Christoph A1 - Britun, Nikolay A1 - Vorac, Jan A1 - Synek, Petr A1 - Snyders, Rony A1 - Heuermann, Holger T1 - Thermal and Optical Study on the Frequency Dependence of an Atmospheric Microwave Argon Plasma Jet JF - IEEE Transactions on Plasma Science Y1 - 2019 SN - 1939-9375 VL - 47 IS - 7 SP - 3176 EP - 3181 PB - IEEE CY - New York ER - TY - JOUR A1 - Ritz, Thomas T1 - Mobile CRM-Systeme : Customer Relationship Management zur Unterstützung des Vertriebsaußendienstes JF - Zeitschrift für wirtschaftlichen Fabrikbetrieb : ZWF ; Organ des VDI-Kompetenzfeldes Informationstechnik (VDI-KfIT) Y1 - 2003 SN - 0932-0482 (Print) SN - 0947-0085 (Online) VL - 99 IS - 12 SP - 699 EP - 702 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 - Steinbauer, Gerald T1 - Looking back on 20 Years of RoboCup JF - KI - Künstliche Intelligenz Y1 - 2016 U6 - https://doi.org/10.1007/s13218-016-0443-y SN - 1610-1987 VL - 30 IS - 3-4 SP - 321 EP - 323 PB - Springer CY - Berlin 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 - Heuermann, Holger A1 - Schiek, Burkhard T1 - Scattering Parameter Measurements of Microstrip Devices using the Double-LNN Calibration Technique JF - Conference proceedings : [Palais des Festivals et des Congrès Cannes, France, 5 - 8 September 1994] Y1 - 1994 SN - 0-9518032-5-5 N1 - European Microwave Conference <24, 1994, Cannes> PB - Nexus Business Communications CY - Swanley ER - TY - JOUR A1 - Wolf, Martin R. 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 - Heuermann, Holger A1 - Holtrup, Stephan T1 - Fundamentals and ignition of a microplasma at 2.45 GHZ / Holtrup, Stephan ; Heuermann, Holger JF - European Microwave Conference, 2009 : EuMC 2009 ; Sept. 29, 2009 - Oct. 1, 2009, Rome, Italy ; part of European Microwave Week (EuMW) / sponsored by EuMA, European Microwave Association ... Endorsed by IEEE Y1 - 2009 SN - 978-1-4244-4748-0 N1 - EuMC 2009 SP - 1607 EP - 1609 PB - IEEE CY - Piscataway, NJ 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 - https://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 - TY - JOUR A1 - Rietsch, Stefan H. G. A1 - Brunheim, Sascha A1 - Orzada, Stephan A1 - Voelker, Maximilian N. A1 - Maderwald, Stefan A1 - Bitz, Andreas A1 - Gratz, Marcel A1 - Ladd, Mark E. A1 - Quick, Harald H. T1 - Development and evaluation of a 16-channel receive-only RF coil to improve 7T ultra-high field body MRI with focus on the spine JF - Magnetic Resonance in Medicine Y1 - 2019 U6 - https://doi.org/10.1002/mrm.27731 SN - 1522-2594 IS - Early view PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Fagan, Andrew J. A1 - Bitz, Andreas A1 - Björkman-Burtscher, Isabella M. A1 - Collins, Christopher M. A1 - Kimbrell, Vera A1 - Raaijmakers, Alexander J. E. T1 - 7T MR Safety JF - Journal of Magnetic Resonance Imaging (JMRI) Y1 - 2021 U6 - https://doi.org/10.1002/jmri.27319 SN - 1522-2586 VL - 53 IS - 2 SP - 333 EP - 346 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Serror, Martin A1 - Hack, Sacha A1 - Henze, Martin A1 - Schuba, Marko A1 - Wehrle, Klaus T1 - Challenges and Opportunities in Securing the Industrial Internet of Things JF - IEEE Transactions on Industrial Informatics Y1 - 2021 U6 - https://doi.org/10.1109/TII.2020.3023507 SN - 1941-0050 VL - 17 IS - 5 SP - 2985 EP - 2996 PB - IEEE CY - New York ER - TY - JOUR A1 - Hüning, Felix A1 - Backes, Andreas T1 - Direct observation of large Barkhausen jump in thin Vicalloy wires JF - IEEE Magnetics Letters Y1 - 2020 SN - 1949-307X U6 - https://doi.org/10.1109/LMAG.2020.3046411 VL - 11 IS - Art. 2506504 SP - 1 EP - 4 PB - IEEE CY - New York, NY ER - TY - JOUR A1 - Reinhardt, T. A1 - Bitz, Andreas A1 - El Ouardi, A. A1 - Streckert, J. A1 - Sommer, A. A1 - Lerchl, A. A1 - Hansen, V. T1 - Exposure set-ups for in vivo experiments using radial waveguides JF - Radiation Protection Dosimetry Y1 - 2007 U6 - https://doi.org/10.1093/rpd/ncm370 SN - 1742-3406 VL - 124 IS - 1 SP - 21 EP - 26 ER - TY - JOUR A1 - Sommer, Angela M. A1 - Bitz, Andreas A1 - Streckert, Joachim A1 - Hansen, Volkert W. A1 - Lerchl, Alexander T1 - Lymphoma development in mice chronically exposed to UMTS-modulated radiofrequency electromagnetic fields JF - Radiation Research Y1 - 2007 U6 - https://doi.org/10.1667/RR0857.1 SN - 1938-5404 VL - 168 IS - 1 SP - 72 EP - 80 ER - TY - JOUR A1 - Sukhotina, Irina A1 - Streckert, Joachim R. A1 - Bitz, Andreas A1 - Hansen, Volkert W. A1 - Lerchl, Alexander T1 - 1800 MHz electromagnetic field effects on melatonin release from isolated pineal glands JF - Journal of Pineal Research Y1 - 2006 U6 - https://doi.org/10.1111/j.1600-079X.2005.00284.x SN - 1600-079X VL - 40 IS - 1 SP - 86 EP - 91 ER - TY - JOUR A1 - Franke, Helmut A1 - Streckert, Joachim A1 - Bitz, Andreas A1 - Goeke, Johannes A1 - Hansen, Volkert A1 - Ringelstein, E. Bernd A1 - Nattkämper, Heiner A1 - Galle, Hans-Joachim A1 - Stögbauer, Florian T1 - Effects of Universal Mobile Telecommunications System (UMTS) electromagnetic fields on the blood-brain barrier in vitro JF - Radiation Research Y1 - 2005 U6 - https://doi.org/10.1667/RR3424.1 SN - 1938-5404 VL - 164 IS - 3 SP - 258 EP - 269 ER - TY - JOUR A1 - Wissen, M. A1 - Bogdanski, N. A1 - Scheer, H.-C. A1 - Bitz, Andreas A1 - Ahrens, G. A1 - Gruetzner, G. T1 - Implication of the light polarisation for UV curing of pre-patterned resists JF - Microelectronic Engineering Y1 - 2005 U6 - https://doi.org/10.1016/j.mee.2004.12.099 SN - 0167-9317 VL - 78-79 SP - 659 EP - 664 ER - TY - JOUR A1 - Ndoumbè Mbonjo Mbonjo, H. A1 - Streckert, J. A1 - Bitz, Andreas A1 - Hansen, V. A1 - Glasmachers, A. A1 - Gencol, S. A1 - Rozic, D. T1 - Generic UMTS test signal for RF bioelectromagnetic studies JF - Bioelectromagnetics Y1 - 2004 U6 - https://doi.org/10.1002/bem.20007 SN - 1521-186X VL - 25 IS - 6 SP - 415 EP - 425 ER - TY - JOUR A1 - Sommer, Angela M. A1 - Streckert, Joachim A1 - Bitz, Andreas A1 - Hansen, Volkert W. A1 - Lerchl, Alexander T1 - No effects of GSM-modulated 900 MHz electromagnetic fields on survival rate and spontaneous development of lymphoma in female AKR/J mice JF - BMC Cancer Y1 - 2004 U6 - https://doi.org/10.1186/1471-2407-4-77 VL - 77 IS - 4 ER - TY - JOUR A1 - Hansen, Volkert W. A1 - Bitz, Andreas A1 - Streckert, Joachim R. T1 - RF Exposure of Biological Systems in Radial Waveguides JF - IEEE Transactions on Electromagnetic Compatibility Y1 - 1999 U6 - https://doi.org/10.1109/15.809852 SN - 1558-187X VL - 41 IS - 4 SP - 487 EP - 493 ER - TY - JOUR A1 - Hüning, Felix A1 - De Matteis, Stefan T1 - Entwicklung eines taktilen HMI für sehbehinderte und blinde Nutzerinnen und Nutzer JF - Blind - sehbehindert Y1 - 2020 SN - 0176-7836 VL - 140 IS - 2 SP - 9 EP - 19 PB - Edition Bentheim CY - Würzburg ER - TY - JOUR A1 - Köhler, Klemens T1 - A conflict theory perspective of IT attacks – consequences for IT security education N2 - Cyberspace is "the environment formed by physical and non-physical components to store, modify, and exchange data using computer networks" (NATO CCDCOE). Beyond that, it is an environment where people interact. IT attacks are hostile, non-cooperative interactions that can be described with conflict theory. Applying conflict theory to IT security leads to different objectives for end-user education, requiring different formats like agency-based competence developing games. Y1 - 2020 IS - Preprint ER - TY - JOUR A1 - Leise, Philipp A1 - Eßer, Arved A1 - Eichenlaub, Tobias A1 - Schleiffer, Jean-Eric A1 - Altherr, Lena A1 - Rinderknecht, Stephan A1 - Pelz, Peter F. T1 - Sustainable system design of electric powertrains - comparison of optimization methods JF - Engineering Optimization N2 - The transition within transportation towards battery electric vehicles can lead to a more sustainable future. To account for the development goal ‘climate action’ stated by the United Nations, it is mandatory, within the conceptual design phase, to derive energy-efficient system designs. One barrier is the uncertainty of the driving behaviour within the usage phase. This uncertainty is often addressed by using a stochastic synthesis process to derive representative driving cycles and by using cycle-based optimization. To deal with this uncertainty, a new approach based on a stochastic optimization program is presented. This leads to an optimization model that is solved with an exact solver. It is compared to a system design approach based on driving cycles and a genetic algorithm solver. Both approaches are applied to find efficient electric powertrains with fixed-speed and multi-speed transmissions. Hence, the similarities, differences and respective advantages of each optimization procedure are discussed. KW - Powertrain KW - stochastic optimization KW - global optimization KW - genetic algorithm Y1 - 2021 U6 - https://doi.org/10.1080/0305215X.2021.1928660 SN - 0305-215X PB - Taylor & Francis CY - London ER - TY - JOUR A1 - Altherr, Lena A1 - Ederer, Thorsten A1 - Lorenz, Ulf A1 - Pelz, Peter F. A1 - Pöttgen, Philipp ED - Lübbecke, Marco ED - Koster, Arie ED - Letmathe, Peter ED - Madlener, Reihard ED - Peis, Britta ED - Walther, Grit T1 - Experimental validation of an enhanced system synthesis approach JF - Operations Research Proceedings 2014 N2 - Planning the layout and operation of a technical system is a common task for an engineer. Typically, the workflow is divided into consecutive stages: First, the engineer designs the layout of the system, with the help of his experience or of heuristic methods. Secondly, he finds a control strategy which is often optimized by simulation. This usually results in a good operating of an unquestioned sys- tem topology. In contrast, we apply Operations Research (OR) methods to find a cost-optimal solution for both stages simultaneously via mixed integer program- ming (MILP). Technical Operations Research (TOR) allows one to find a provable global optimal solution within the model formulation. However, the modeling error due to the abstraction of physical reality remains unknown. We address this ubiq- uitous problem of OR methods by comparing our computational results with mea- surements in a test rig. For a practical test case we compute a topology and control strategy via MILP and verify that the objectives are met up to a deviation of 8.7%. Y1 - 2014 SN - 978-3-319-28695-2 U6 - https://doi.org/10.1007/978-3-319-28697-6_1 PB - Springer CY - Basel ER - TY - JOUR A1 - Vergé, Angela A1 - Pöttgen, Philipp A1 - Altherr, Lena A1 - Ederer, Thorsten A1 - Pelz, Peter F. ED - Greuloch, Ivo ED - Weber, Manfred ED - Meier, Miles T1 - Lebensdauer als Optimierungsziel: Algorithmische Struktursynthese am Beispiel eines hydrostatischen Getriebes JF - O+P – Ölhydraulik und Pneumatik N2 - Verfügbarkeit und Nachhaltigkeit sind wichtige Anforderungen bei der Planung langlebiger technischer Systeme. Meist werden bei Lebensdaueroptimierungen lediglich einzelne Komponenten vordefinierter Systeme untersucht. Ob eine optimale Lebensdauer eine gänzlich andere Systemvariante bedingt, wird nur selten hinterfragt. Technical Operations Research (TOR) erlaubt es, aus Obermengen technischer Systeme automatisiert die lebensdaueroptimale Systemstruktur auszuwählen. Der Artikel zeigt dies am Beispiel eines hydrostatischen Getriebes. Y1 - 2016 SN - 1614-9602 VL - 60 IS - 1-2 SP - 114 EP - 121 PB - Vereinigte Fachverl. CY - Mainz ER - TY - JOUR A1 - Sun, Hui A1 - Altherr, Lena A1 - Pei, Ji A1 - Pelz, Peter F. A1 - Yuan, Shouqi T1 - Optimal booster station design and operation under uncertain load JF - Applied Mechanics and Materials N2 - Given industrial applications, the costs for the operation and maintenance of a pump system typically far exceed its purchase price. For finding an optimal pump configuration which minimizes not only investment, but life-cycle costs, methods like Technical Operations Research which is based on Mixed-Integer Programming can be applied. However, during the planning phase, the designer is often faced with uncertain input data, e.g. future load demands can only be estimated. In this work, we deal with this uncertainty by developing a chance-constrained two-stage (CCTS) stochastic program. The design and operation of a booster station working under uncertain load demand are optimized to minimize total cost including purchase price, operation cost incurred by energy consumption and penalty cost resulting from water shortage. We find optimized system layouts using a sample average approximation (SAA) algorithm, and analyze the results for different risk levels of water shortage. By adjusting the risk level, the costs and performance range of the system can be balanced, and thus the system’s resilience can be engineered KW - Stochastic Programming KW - Chance Constraint KW - Engineering Application KW - Pump System KW - Water Distribution Y1 - 2018 U6 - https://doi.org/10.4028/www.scientific.net/AMM.885.102 SN - 1662-7482 VL - 885 SP - 102 EP - 115 PB - Trans Tech Publications CY - Bäch ER -