TY - JOUR A1 - Prume, Klaus A1 - Franken, Klaus A1 - Maier, Horst R. A1 - Waser, Rainer T1 - Finite-Element Analysis of Ceramic Multilayer Capacitors: Failure Probability Caused by Wave Soldering and Bending Loads / Franken, Klaus ; Maier, Horst R. ; Prume, Klaus ; Waser, Rainer JF - Journal of the American Ceramic Society. 83 (2000), H. 6 Y1 - 2000 SN - 0002-7820 SP - 1433 EP - 1440 ER - TY - CHAP A1 - Bensberg, Frank A1 - Auth, Gunnar A1 - Czarnecki, Christian ED - Czarnecki, Christian ED - Fettke, Peter T1 - Finding the perfect RPA match : a criteria-based selection method for RPA solutions T2 - Robotic process automation : Management, technology, applications N2 - The benefits of robotic process automation (RPA) are highly related to the usage of commercial off-the-shelf (COTS) software products that can be easily implemented and customized by business units. But, how to find the best fitting RPA product for a specific situation that creates the expected benefits? This question is related to the general area of software evaluation and selection. In the face of more than 75 RPA products currently on the market, guidance considering those specifics is required. Therefore, this chapter proposes a criteria-based selection method specifically for RPA. The method includes a quantitative evaluation of costs and benefits as well as a qualitative utility analysis based on functional criteria. By using the visualization of financial implications (VOFI) method, an application-oriented structure is provided that opposes the total cost of ownership to the time savings times salary (TSTS). For the utility analysis a detailed list of functional criteria for RPA is offered. The whole method is based on a multi-vocal review of scientific and non-scholarly literature including publications by business practitioners, consultants, and vendors. The application of the method is illustrated by a concrete RPA example. The illustrated structures, templates, and criteria can be directly utilized by practitioners in their real-life RPA implementations. In addition, a normative decision process for selecting RPA alternatives is proposed before the chapter closes with a discussion and outlook. KW - robotic process automation KW - business process automation KW - commercial offthe- shelf solutions KW - software evaluation KW - software selection Y1 - 2021 SN - 978-3-11-067677-8 SN - 978-3-11-067669-3 SN - 9783110676686 U6 - http://dx.doi.org/10.1515/9783110676693-201 SP - 47 EP - 75 PB - De Gruyter CY - Oldenbourg ER - TY - CHAP A1 - Leise, Philipp A1 - Altherr, Lena A1 - Simon, Nicolai A1 - Pelz, Peter F. T1 - Finding global-optimal gearbox designs for battery electric vehicles T2 - Optimization of complex systems - theory, models, algorithms and applications : WCGO 2019 N2 - In order to maximize the possible travel distance of battery electric vehicles with one battery charge, it is mandatory to adjust all components of the powertrain carefully to each other. While current vehicle designs mostly simplify the powertrain rigorously and use an electric motor in combination with a gearbox with only one fixed transmission ratio, the use of multi-gear systems has great potential. First, a multi-speed system is able to improve the overall energy efficiency. Secondly, it is able to reduce the maximum momentum and therefore to reduce the maximum current provided by the traction battery, which results in a longer battery lifetime. In this paper, we present a systematic way to generate multi-gear gearbox designs that—combined with a certain electric motor—lead to the most efficient fulfillment of predefined load scenarios and are at the same time robust to uncertainties in the load. Therefore, we model the electric motor and the gearbox within a Mixed-Integer Nonlinear Program, and optimize the efficiency of the mechanical parts of the powertrain. By combining this mathematical optimization program with an unsupervised machine learning algorithm, we are able to derive global-optimal gearbox designs for practically relevant momentum and speed requirements. KW - Powertrain KW - Gearbox KW - Optimization KW - BEV KW - WLTP Y1 - 2019 SN - 978-3-030-21802-7 U6 - http://dx.doi.org/10.1007/978-3-030-21803-4_91 SP - 916 EP - 925 PB - Springer CY - Cham ER - TY - BOOK A1 - Alt, Helmut T1 - Finanzmathematik : Algorithmen und praktische Anwendungen; mit Beispielprogrammen zum HP-41 Y1 - 1986 SN - 3-528-04448-9 PB - Vieweg CY - Braunschweig [u.a.] ER - TY - CHAP A1 - Brandes, Sinja A1 - Gligorevic, Snjezana A1 - Schnell, Michael A1 - Rokitansky, Carl-Herbert A1 - Ehammer, Max A1 - Gräupl, Thomas A1 - Schlereth, Armin A1 - Rihacek, Christoph T1 - Final assessment of the B-VHF overlay concept T2 - IEEE Aerospace Conference : 3-10 March 2007, Big Sky, Mont. Y1 - 2007 SN - 1-4244-0525-4 SP - 1 EP - 18 ER - TY - JOUR A1 - Heuermann, Holger T1 - Fehlerkorrigierte Mehrtormessungen für frequenzumsetzende Komponenten mit NonLin-S JF - HF-Report : Hochfrequenztechnik, Optoelektronik, Mikrowellentechnik, Kommunikationstechnik. 22 (2008), H. 4 Y1 - 2008 SN - 1431-827X SP - 39 EP - 44 ER - TY - JOUR A1 - Lepers, Heinrich T1 - Fehler bei der Systemanalyse aus stochastisch gestörten Sprungantworten JF - Regelungstechnik und Prozeß-Datenverarbeitung N2 - Es wird von Gleichungen ausgegangen, mit denen die Modellkoeffizienten von Regelstrecken mit Ausgleich aus der gemessenen Sprungantwort ermittelt werden können. Die Übertragungsfunktion der Regelstrecke hat einen konstanten Zähler und ein Nennerpolynom. Unter der Annahme, daß die ideale und exakte Sprungantwort des Systems durch ein stochastisches Signal gestört wird, wird untersucht, wie die Fehler der ermittelten Modellkoeffizienten von Kennwerten des Störsignals und von der Meßzeit für die Sprungantwort abhängen. Durch eine Simulation auf dem Digitalrechner wurden die Ergebnisse kontrolliert. Es zeigt sich, daß durch eine Filterung der gestörten Sprungantwort über einen Tiefpaß keine Verbesserung der Analyseergebnisse erreicht werden kann, da das Identifizierungsverfahren eine glättende Eigenschaft hat. Y1 - 1973 U6 - http://dx.doi.org/10.1524/auto.1973.21.112.229 SN - 0034-3226 VL - 21 IS - 7 SP - 229 EP - 233 PB - De Gruyter CY - Berlin ER - TY - JOUR A1 - Maas, Marnix C. A1 - Vos, Eline K. A1 - Lagemaat, Miriam W. A1 - Bitz, Andreas A1 - Orzada, Stephan A1 - Kobus, Thiele A1 - Kraff, Oliver A1 - Maderwald, Stefan A1 - Ladd, Mark E. A1 - Scheenen, Tom W. J. T1 - Feasibility of T₂-weighted turbo spin echo imaging of the human prostate at 7 tesla JF - Magnetic Resonance in Medicine N2 - Purpose To demonstrate that high quality T₂-weighted (T2w) turbo spin-echo (TSE) imaging of the complete prostate can be achieved routinely and within safety limits at 7 T, using an external transceive body array coil only. Methods Nine healthy volunteers and 12 prostate cancer patients were scanned on a 7 T whole-body system. Preparation consisted of B₀ and radiofrequency shimming and localized flip angle calibration. T₁ and T₂ relaxation times were measured and used to define the T2w-TSE protocol. T2w imaging was performed using a TSE sequence (pulse repetition time/echo time 3000–3640/71 ms) with prolonged excitation and refocusing pulses to reduce specific absorption rate. Results High quality T2w TSE imaging was performed in less than 2 min in all subjects. Tumors of patients with gold-standard tumor localization (MR-guided biopsy or prostatectomy) were well visualized on 7 T imaging (n = 3). The number of consecutive slices achievable within a 10-g averaged specific absorption rate limit of 10 W/kg was ≥28 in all subjects, sufficient for full prostate coverage with 3-mm slices in at least one direction. Conclusion High quality T2w TSE prostate imaging can be performed routinely and within specific absorption rate limits at 7 T with an external transceive body array. Y1 - 2014 U6 - http://dx.doi.org/10.1002/mrm.24818 SN - 1522-2594 VL - 71 IS - 5 SP - 1711 EP - 1719 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Krause, Gregor A1 - Rodriguez, Jackson A1 - Stopic, Srecko A1 - Friedrich, Bernd T1 - Feasibility assessment of electrocoagulation towards a new sustainable wastewater treatment / Rodriguez, Jackson ; Stopic, Srecko ; Krause Gregor ; Friedrich, Bernd JF - Environmental Science and Pollution Research. 14 (2007), H. 7 Y1 - 2007 SN - 0944-1344 SP - 477 EP - 482 ER - TY - CHAP A1 - Niemueller, Tim A1 - Reuter, Sebastian A1 - Ferrein, Alexander ED - Almeida, Luis T1 - Fawkes for the RoboCup Logistics League T2 - RoboCup 2015: Robot World Cup XIX Y1 - 2016 SN - 978-3-319-29339-4 U6 - http://dx.doi.org/10.1007/978-3-319-29339-4_31 N1 - Lecture Notes in Computer Science ; 9513 SP - 365 EP - 373 PB - Springer International Publishing CY - Cham ER - TY - JOUR A1 - Oßmann, Martin A1 - Hattrup, C. A1 - Broeck, H. W. van der T1 - Fast estimation techniques for digital control of resonant converters / Hattrup, C.; van der Broeck, H.W.; Ossmann, M.; JF - IEEE Transaction on Power Electronics. 18 (2003), H. 1 Y1 - 2003 SN - 0885-8993 N1 - Part 2 SP - 365 EP - 372 ER - TY - JOUR A1 - Prume, Klaus A1 - Muralt, Paul A1 - Calame, Florian A1 - Schmitz-Kempen, Thorsten T1 - Extensive electromechanical characterization of PZT thin films for MEMS applications by electrical and mechanical excitation signals / Prume, Klaus ; Muralt, Paul ; Calame, Florian ; Schmitz-Kempen, Thorsten ; Tiedke, Stephan JF - Journal of Electroceramics. 19 (2007), H. 4 Y1 - 2007 SN - 1385-3449 SP - 407 EP - 411 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 - Schlamann, Marc A1 - Voigt, Melanie A. A1 - Maderwald, Stefan A1 - Bitz, Andreas A1 - Kraff, Oliver A1 - Ladd, Susanne C. A1 - Ladd, Mark E. A1 - Forsting, Michael A1 - Wilhelm, Hans T1 - Exposure to high-field MRI does not affect cognitive function JF - Journal of Magnetic Resonance Imaging N2 - Purpose To assess potential cognitive deficits under the influence of static magnetic fields at various field strengths some studies already exist. These studies were not focused on attention as the most vulnerable cognitive function. Additionally, mostly no magnetic resonance imaging (MRI) sequences were performed. Materials and Methods In all, 25 right-handed men were enrolled in this study. All subjects underwent one MRI examination of 63 minutes at 1.5 T and one at 7 T within an interval of 10 to 30 days. The order of the examinations was randomized. Subjects were referred to six standardized neuropsychological tests strictly focused on attention immediately before and after each MRI examination. Differences in neuropsychological variables between the timepoints before and after each MRI examination were assessed and P-values were calculated Results Only six subtests revealed significant differences between pre- and post-MRI. In these tests the subjects achieved better results in post-MRI testing than in pre-MRI testing (P = 0.013–0.032). The other tests revealed no significant results. Conclusion The improvement in post-MRI testing is only explicable as a result of learning effects. MRI examinations, even in ultrahigh-field scanners, do not seem to have any persisting influence on the attention networks of human cognition immediately after exposure. Y1 - 2010 U6 - http://dx.doi.org/10.1002/jmri.22065 SN - 1522-2586 VL - 31 IS - 5 SP - 1061 EP - 1066 PB - Wiley-Liss CY - New York 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 - http://dx.doi.org/10.1093/rpd/ncm370 SN - 1742-3406 VL - 124 IS - 1 SP - 21 EP - 26 ER - TY - JOUR A1 - Siepmann, Thomas T1 - Exploitation Plan of the TELEflow Project Y1 - 1999 N1 - 4th Framework Programme Report CY - Brussels ER - TY - JOUR A1 - Siepmann, Thomas T1 - Expertensysteme in der rechnerintegrierten Produktion JF - Einführung in die CIM-Praxis : rechnerintegrierte Produktion / hrsg. von Gerhard Neipp ... Y1 - 1991 SN - 3-18-401098-8 SP - 187 EP - 198 PB - VDI-Verl. CY - Düsseldorf ER - TY - JOUR A1 - Siepmann, Thomas A1 - Pfeiffer, J. A1 - Teichmann, W. T1 - Expertensystem zur spanenden Bearbeitung JF - Technische Mitteilungen Krupp (1988) Y1 - 1988 CY - Essen ER - TY - CHAP A1 - Heinol, Horst-Guenther A1 - Xu, Zhanping A1 - Schwarte, Rudolf A1 - Ringbeck, Thorsten ED - Deppe, Gerd-Joachim T1 - Experimentelle Ergebnisse eines neuartigen schnellen 3D-MeEsystems mit modifizierten elektrooptischen Modulationskomponenten T2 - Optische Formerfassung : Erfahrungsaustausch zwischen Anwendern und Entwicklern ; Manuskripte der Vorträge und Präsentationen zur DGZfP-VDI/VDE-GMA-Fachtagung am 28. und 29. April 1997 in der Stadthalle in Langen. - (GMA-Bericht ; 30) Y1 - 1997 SP - 99 EP - 103 PB - Gesellschaft Mess- und Automatisierungstechnik CY - Düsseldorf 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 - http://dx.doi.org/10.1007/978-3-319-28697-6_1 PB - Springer CY - Basel ER -