TY - CHAP A1 - Weidl, Galia T1 - ADAPTIVE RISK ASSESSMENT IN COMPLEX LARGE SCALE PROCESSES WITH REDUCED COMPUTATIONAL COMPLEXITY T2 - 9th International Conference on Industrial Engineering Theory, Applications & Practice, November 27-30, 2004 N2 - We have developed a methodology that targets risk assessment for process operation. It includes both abnormality prediction and evaluation of its development, provided no corrective actions are taken, as well as a possibility to examine the impact of intended actions. It handles the uncertainties in the domain and the big number of influences on the effect variables by utilizing causal probabilistic modeling. The process is modeled by Hidden Markov Models (HMM), and object oriented dynamic Bayesian networks (OOBNs). Various modeling techniques and assumptions have been used to reduce the computational complexity and ensure fast inference. The methodology is applied in a case study. KW - Adaptive Risk Management KW - Hidden Markov Models KW - HMM KW - OOBN KW - Bayesian Networks KW - Prozessmodell Y1 - 2004 UR - http://www.orsnz.org.nz/conf39/ProgramSummary.pdf ER - TY - JOUR A1 - Jost, Thomas A1 - Rottmann, Horst T1 - Umfang und Motive deutscher Direktinvestitionen in den Industrieländern JF - LIST-Forum für Wirtschafts- und Finanzpolitik KW - Direktinvestitionen KW - Direktinvestition Y1 - 2004 VL - 30 IS - 2 SP - 153 EP - 166 ER - TY - CHAP A1 - Jost, Thomas A1 - Rottmann, Horst T1 - Direktinvestitionen - warum und in welchem Umgang deutsche Unternehmen in den EU-Beitrittsländern investieren T2 - So kommen Sie in die Beitrittsländer, Der Wegweiser für den Mittelstand KW - Direktinvestitionen KW - EU-Beitrittsländer KW - Direktinvestition Y1 - 2004 SN - 978-3937385013 SP - 150 EP - 163 PB - Prime-Verlag CY - München ER - TY - JOUR A1 - Krüger, Malte A1 - Hinrichs, Jens-Werner A1 - Stroborn, Karsten T1 - Internet Payment Services: PayPal - reif für den deutschen Markt? JF - Die Bank KW - PayPal Y1 - 2004 VL - 2004 IS - 8 SP - 62 EP - 66 ER - TY - CHAP A1 - Rötzel, Peter T1 - Hedonic Prices in the German Market for Mobile Phones T2 - International Telecommunications Conference in association with the 31st EARIE Annual Conference, Berlin, 2-5 September 2004 KW - Mobilfunkmarkt KW - Telekommunikationsmarkt KW - Hedonischer Preis Y1 - 2004 VL - 15 ER - TY - BOOK A1 - Bruhm, Hartmut A1 - Heimann, Gerald T1 - KoRTec - Kompetenzzentrum Regelungstechnik: Abschlussbericht KW - KoRTec KW - Regelungstechnik KW - Regelungstechnik Y1 - 2004 ER - TY - CHAP A1 - Bruhm, Hartmut A1 - Fischer, Peter T1 - Sensorische Höhenführung eines Industrieroboters mit verbesserter Dynamik durch Elimination der Steuerungtotzeit T2 - Robotik 2004. Leistungsstand - Anwendungen - Visionen - Trends ; Tagung München, 17. und 18. Juni 2004 KW - Höhenführung KW - Industrieroboter KW - Dynamik KW - Totzeit KW - Industrieroboter KW - Totzeit KW - Dynamik KW - Regelungstechnik Y1 - 2004 VL - 2004 SP - 519 EP - 526 PB - VDI Verlag CY - Düsseldorf ER - TY - CHAP A1 - Bruhm, Hartmut A1 - Fischer, Peter A1 - Stark, Hans-Georg T1 - Optimierung der dynamischen Bahntreue eines Industrieroboters durch datenbankgestützten Reglerentwurf T2 - Robotik 2004, VDI-Bericht 1841 KW - Industrieroboter KW - Reglerentwurf KW - Dynamik KW - Optimierung KW - Industrieroboter KW - Reglerentwurf KW - Dynamik KW - Optimierung KW - Regelungstechnik Y1 - 2004 VL - 2004 SP - 511 EP - 518 PB - VDI Verlag ER - TY - CHAP A1 - Döhring, Thorsten A1 - Jedamzik, Ralf A1 - Thomas, Armin T1 - Zerodur mandrels for the next generation of x-ray telescopes T2 - Proceedings of SPIE KW - Röntgenteleskop Y1 - 2003 VL - 4851 SP - 647 EP - 655 ER - TY - CHAP A1 - Döhring, Thorsten A1 - Hartmann, Peter A1 - Morian, Hans F. T1 - Optical glasses and glass ceramics for large optical systems T2 - Proceedings of SPIE KW - Zerodur KW - Glaskeramik Y1 - 2003 VL - 4842 SP - 56 EP - 66 ER - TY - GEN A1 - Stollenwerk, Manfred T1 - Basics of Recordable Media Production T2 - Vortrag auf dem “International Recordable Media Technology Seminar”, Dubai N2 - Vortrag KW - CD-R KW - DVD-R Y1 - 2003 ER - TY - GEN A1 - Stollenwerk, Manfred T1 - Correlation of DVD-Recordable Disc Performance and Process Parameters T2 - Vortrag auf der „Replication EXPO 2003“, Shanghai, China N2 - Vortrag KW - DVD-R Y1 - 2003 ER - TY - PAT A1 - Döhring, Thorsten A1 - Mitra, Ina T1 - Large transmissive optical component KW - Optisches Bauelement Y1 - 2003 ER - TY - CHAP A1 - Weidl, Galia A1 - Vollmar, Gerhard A1 - Dahlquist, Erik T1 - Adaptive Root Cause Analysis under uncertainties in industrial process operation T2 - The Foundations of Computer Aided Process Operations (FOCAPO 2003) N2 - We discuss a Root Cause Analysis (RCA) system implementing a probabilistic approach based on Bayesian inference for adaptive reasoning under uncertainties in industrial process operation. The proposed approach is model based and accumulates the process knowledge within the problem domain, which data is gathered and stored in XML-based information server. The Bayesian networks have been created automatically from the XML-structured data. The interconnection between XML-failure trees is handled as object oriented instances of Bayesian sub-networks within master-network covering the entire process and monitoring its overall condition, output quality and equipment effectiveness. We implement sequential on-line adaptivity of models' parameters to reflect changes in process operation. The system learning can be supervised by user feedback on the actual root cause. The general RCA methodology is applied to plate cutting in a hot rolling mill. KW - uncertainties KW - Adaptive Root Cause Analysis KW - Root Cause KW - Adaptive KW - Prozesssteuerung KW - Prozessmodell Y1 - 2003 UR - https://www.researchgate.net/publication/262562640_Adaptive_Root_Cause_Analysis_under_uncertainties_in_industrial_process_operation#fullTextFileContent ER - TY - CHAP A1 - Weidl, Galia A1 - Madsen, Anders L. A1 - Dahlquist, Erik T1 - Object Oriented Bayesian Networks for Industrial Process Operation T2 - Proceedings of the first Bayesian Application Modeling Workshop at the 19th Conference in Uncertainty in Artificial Intelligence, 2003 N2 - We present an application, where extensions of existing methods for decision-theoretic troubleshooting are used for industrial process operation and asset management. The extension includes expected average cost of asset management actions, prediction of signals' level-trend development, risk assessment for disturbance analysis and predictive maintenance on demand. KW - Bayesian Networks KW - OOBN KW - Prozesssteuerung Y1 - 2003 UR - https://www.researchgate.net/publication/2942492_Object_Oriented_Bayesian_Networks_for_Industrial_Process_Operation#fullTextFileContent ER - TY - CHAP A1 - Weidl, Galia A1 - Madsen, Anders L. A1 - Dahlquist, Erik T1 - Applications of object-oriented Bayesian networks for causal analysis of process disturbances T2 - SIMS'2003 (44th International Conference of the Scandinavian Simulation Society) N2 - We discuss a hybrid approach for causal analysis of disturbances in industrial process operation. It represents a combination of OOBN with first level diagnostic packages and physical models serving as agents in the system design and providing evidence for automated reasoning on abnormality in process operation. The aim is causal analysis of non-measurable disturbances as a decision advice complement to the distributed control system (DCS). The approach includes prediction of signals' level-trend development, risk assessment for disturbance analysis and predictive maintenance on demand. The methodology has been applied on a screening process with a pressure-flow network in a Pulp Mil. KW - OOBN KW - DCS KW - Bayesian Networks KW - Prozessmodell KW - Prozesssteuerung Y1 - 2003 UR - https://www.researchgate.net/publication/228679172_Applications_of_object-oriented_Bayesian_networks_for_causal_analysis_of_process_disturbances#fullTextFileContent ER - TY - JOUR A1 - Jost, Thomas A1 - Nunnenkamp, Peter ED - Institut für Weltwirtschaft, T1 - Deutsche Direktinvestitionen in Entwicklungs- und Reformländern: Haben sich die Motive gewandelt? JF - Die Weltwirtschaft KW - Direktinvestitionen KW - Entwicklungsländer KW - Direktinvestition Y1 - 2003 VL - 2003 IS - Heft 1 SP - 107 EP - 130 ER - TY - CHAP A1 - Jost, Thomas T1 - Auswirkungen von Direktinvestitionen in Entwicklungsländern T2 - Theoretische und wirtschaftspolitische Aspekte der internationalen Integration KW - Direktinvestitionen KW - Entwicklungsländer KW - Direktinvestition Y1 - 2003 SN - 3-428-11078-1 SP - 255 EP - 273 PB - Duncker & Humblot CY - Berlin ER - TY - CHAP A1 - Zindler, Klaus T1 - Funktionsentwurf und Konzepterprobung aktiver Federungssysteme T2 - 11. Aachener Kolloquium Fahrzeug- und Motorentechnik KW - Kraftfahrzeug KW - Federung Y1 - 2002 VL - 2002 SP - 1025 EP - 1042 ER - TY - CHAP A1 - Zindler, Klaus T1 - Erzielbare Komfortverbesserung mit aktiven Federungen unter Verwendung einer Sky-Hook-Regelstrategie T2 - Vortrag im Forschungs- und Innovationszentrum der BMW AG, München, Juni 2002 KW - Kraftfahrzeugfederung Y1 - 2002 VL - 2002 ER -