TY - CONF
AU - Ditz, Michael
AU - Meschut, Gerson
AU - Schwarze, Thomas
AU - Smart, Dominic
ID - 20331
TI - Entwicklung und Qualifizierung einer rechnergestützten Auswertemethode zur Differenzierung der Versagensanteile klebtechnisch gefügter Proben
ER -
TY - GEN
AU - Patzer, Christfof
ID - 20790
TI - Entwicklung und Vergleich von Messkriterien anhand statistischer Methoden zur Optimierung der Leistungserbringung im IT-Unternehmen Diebold Nixdorf im Global Service Delivery Management
ER -
TY - JOUR
AU - Fedorov, Alexander
AU - Frei, Herrmann
AU - Bothe, Mike
AU - Lutters, Nicole
AU - Kenig, Eugeny Y.
ID - 22455
JF - Chemie Ingenieur Technik
SN - 0009-286X
TI - Entwicklung von Echtzeitmodellen für Kreislaufprozesse der chemischen Absorption
ER -
TY - JOUR
AU - Gerhardts, L.
AU - Kamin, A.M.
AU - Meister, Dorothee M.
AU - Richter, L.
AU - Teichert, Jeannine
ID - 44204
IS - 6
JF - PraxisForschungLehrer*innenBildung
TI - Entwicklung von Selbstlern- und Medienkompetenz im Homeschooling – Chancen und konzeptionelle Anforderungen
VL - 2
ER -
TY - THES
AB - Elektromechanische Spindelhubantriebe werden in einer Vielzahl von unterschiedlichen Anwendungen mit jeweils spezifischen Prozesskennwerten eingesetzt. Dabei kann es vorkommen, dass das dynamische Betriebsverhalten eines Spindelhubantriebs unerwünschte Schwingungen aufweist. Um unerwünschte Betriebszustände bereits vor dem realen Anwendungsfall ersichtlich zu machen, wird im Rahmen dieser Arbeit ein Simulationsmodell von Spindelhubantrieben mit Trapezgewindespindel entwickelt. Dazu wird zunächst recherchiert, welche Schwingungsphänomene in einem Spindelhubantrieb entstehen können. Die Modellbildung wird durch eine Verifikation anhand der identifizierten Schwingphänomene begleitet. Im Anschluss erfolgt eine Validierung des Simulationsmodells durch experimentelle Messungen. Mittels einer Parameterstudie werden Einflussgrößen von zwei Schwingphänomenen analysiert. Die erzielten Erkenntnisse werden anschließend erfolgreich auf ein zuvor schwingungsanfälliges Antriebssystem zugunsten eines stabilen, dynamischen Betriebsverhaltens übertragen, wodurch die Gültigkeit des Modells nachgewiesen wird.
AU - Tominski, Johannes
ID - 22501
SN - 978-3-8440-7499-4
TI - Entwurf eines Simulationsmodells zur Beurteilung und Beeinflussung des dynamischen Betriebsverhalten von Spindelhubantrieben mit Trapezgewindespindel
ER -
TY - JOUR
AB - Simulationsmethoden bieten die Möglichkeit, instabile Betriebszustände von Antriebssystemen noch vor dem Einsatz in einer realen Anwendung zu identifizieren und gezielt Gegenmaßnahmen abzuleiten. In dem vorliegenden Artikel wird die Entwicklung eines Simulationsmodells für elektro- mechanische Spindelhubantriebe beschrieben. Im Fokus der Betrachtung stehen insbesondere reibungsinduzierte Schwingphänomene, die in Schneckengetrieben und Trapezgewindespindeln entstehen können. Das Simulationsmodell wird anhand von experimentellen Messungen für mehrere stabile Betriebspunkte und für einen instabilen Betriebszustand validiert. Eine Diskussion der Ergebnisse schließt den Beitrag ab.
AU - Tominski, J.
AU - Zimmer, Detmar
ID - 22006
IS - 4
JF - Konstruktion - Zeitschrift für Produktentwicklung und Ingenieur-Werkstoffe
SN - 0373-3300
TI - Entwurf eines Simulationsmodells zur Bewertung des Betriebsverhaltens von elektromechanischen Spindelhubantrieben
VL - 72
ER -
TY - JOUR
AU - Liu, Xin
AU - Longwitz, Lars
AU - Spiegelberg, Brian
AU - Tönjes, Jan
AU - Beweries, Torsten
AU - Werner, Thomas
ID - 37951
IS - 22
JF - ACS Catalysis
KW - Catalysis
KW - General Chemistry
SN - 2155-5435
TI - Erbium-Catalyzed Regioselective Isomerization–Cobalt-Catalyzed Transfer Hydrogenation Sequence for the Synthesis of Anti-Markovnikov Alcohols from Epoxides under Mild Conditions
VL - 10
ER -
TY - JOUR
AB - Zusammenfassung. Positive Einstellungen zu Inklusion gelten als zentraler Erfolgsfaktor für die Entwicklung eines inklusiven Schulsystems. Die vorliegende Studie prüft die Validität dreier gängiger deutschsprachiger Messinstrumente zur Erfassung von Einstellungen zu Inklusion in einer unabhängigen Stichprobe: SACIE, EFI-L und KIESEL. Zur Validierung herangezogene externe Konstrukte sind Selbstwirksamkeit und die Big Five Persönlichkeitsfaktoren. Die Ergebnisse einer Befragung von 556 Lehrkräften und Lehramtsstudierenden (Alter: M( SD) = 26.48 (12.67); 70 % weiblich) mit Blick auf die Inklusion von Kindern mit Förderschwerpunkt Lernen (SPF-L) zeigen eine weitgehend gute Replizierbarkeit der Faktorstrukturen der Instrumente. Die Faktorkorrelationen über die Instrumente hinweg lagen zwischen |.61| und |.96| (nur Attitude Subskala des SACIE). Alle Subskalen zeigen vergleichbare Zusammenhänge mit Selbstwirksamkeit und den Big Five Persönlichkeitsfaktoren. Zwar weisen Unterschiede in den Effektstärken darauf hin, dass die Instrumente je spezifische Aspekte von Inklusion betonen, insgesamt rechtfertigen die Ergebnisse jedoch die Annahme, dass das zugrundeliegende Konzept von Einstellungen bezüglich Inklusion weitgehend überlappt.
AU - Gorges, Julia
AU - Grumbach, Jasmin
AU - Micheel, Sabrina A.
AU - Neumann, Phillip
ID - 34489
IS - 4
JF - Diagnostica
KW - Inklusion
KW - Einstellungen
KW - Inclusion
KW - BiFoKi
SN - 0012-1924
TI - Erfassung von Einstellungen zu Inklusion mit SACIE, EFI-L und KIESEL
VL - 66
ER -
TY - CHAP
AU - Heitmann, Ingmar
ED - Betz, Stefan
ID - 50354
SN - 978-3-339-11532-4
T2 - Neuere Entwicklungen in Produktionn und Controlling
TI - Erfolgsfaktoren digitaler Transformationsprozesse in KMU
ER -
TY - JOUR
AU - Eickelmann, Birgit
ID - 28841
IS - 2
JF - Zeitschrift Schulmanagement. Fachzeitschrift für Schul- und Unterrichtsentwicklung
TI - Ergebnisse der ICILS-2018-Studie. Unterrichtliche Nutzung digitaler Medien in Deutschland im internationalen Vergleich und zukunftsfähige Perspektiven
VL - 51
ER -
TY - DATA
AU - Gerick, Julia
AU - Eickelmann, Birgit
ID - 28896
TI - Ergebnisse der vertiefenden Untersuchung der Modellschulen ‚Lernen mit digitalen Medien‘ (Phase III) in Schleswig-Holstein mit Fokus auf der Gestaltung von Schule in der Zeit der Corona-Pandemie
ER -
TY - DATA
AU - Gerick, Julia
AU - Eickelmann, Birgit
ID - 28899
TI - Ergebnisse der wissenschaftlichen Begleitung der Evaluation der dritten Phase des Projekts ‚Lernen mit digitalen Medien‘ mit dem Schwerpunkt auf digitalen Medien im Fachunterricht an Modellschulen in Schleswig-Holstein
ER -
TY - DATA
AU - Gerick, Julia
AU - Eickelmann, Birgit
AU - Steglich, Emilie
ID - 28888
TI - Ergebnisse der wissenschaftlichen Begleitung der Evaluation des Projekts ‚Lernen mit digitalen Medien‘ an den Förderzentren Geistige Entwicklung/Körperliche und motorische Entwicklung in Schleswig-Holstein ergänzt um eine Vertiefungsuntersuchung im Kontext des Lernens mit digitalen Medien unter Pandemie-Bedingungen
ER -
TY - CONF
AB - The process of data acquisition and transformation of Baumann Digital and Joachim-Raff-Archiv is the subject of this poster description. The data in both projects is (meanwhile) based on TEI and MEI to obtain a machine-readable corpus. The presentation platform created for this project was initially intended as a simple form of visualization for internal use, i. e. for structuring, proofreading of digital contents and first evaluations. The xQuery-based application for eXist-db was developed in detail during the first period of the Baumann Digital project, adding the dimension of public presentation to its original purpose. This poster focuses on the process of collecting, transforming and presenting the data of these two small projects, which have different research interests but deal with similar archival material.
AU - Ried, Dennis
ED - Acquavella-Rauch, Stefanie
ED - Münzmay, Andreas
ED - Veit, Joachim
ID - 46583
T2 - Brückenschläge zwischen Musikwissenschaft und Informatik. Theoretische und praktische Aspekte der Kooperation
TI - Erhebung, Transformation und Präsentation digitaler Forschungsdaten
VL - 3
ER -
TY - JOUR
AU - Fuchs, Christian
ID - 38142
IS - 3
JF - Humanity & Society
TI - Erich Fromm and the Critical Theory of Communication
VL - 44
ER -
TY - BOOK
AU - Lammer, Christina
ID - 30869
TI - Erinnerung und Identität: Literarische Konstruktionen in Doeschka Meijsings Prosa
ER -
TY - BOOK
ED - Kamp, Hermann
ED - Schmitz, Sabine
ID - 34588
TI - Erinnerungsorte in Belgien. Instrumente lokaler, regionaler und nationaler Sinnstiftung
ER -
TY - CHAP
AU - Kuklinski, Christiane
AU - Leis, Elena
AU - Liebendörfer, Michael
AU - Hochmuth, Reinhard
ED - Frank, Andreas
ED - Krauss, Stefan
ED - Binder, Karin
ID - 37486
T2 - Beiträge zum Mathematikunterricht 2019 53. Jahrestagung der Gesellschaft für Didaktik der Mathematik.
TI - Erklärung von Mathematikleistung im Ingenieursstudium
ER -
TY - THES
AU - Porsch, Tony
ID - 42756
SN - 978-3-8440-7382-9
TI - Ersatzmodellentwicklung zur Prognose des kerbinduzierten Fügeteilversagens von Halbhohlstanznietverbindungen unter Crashbelastung
ER -
TY - GEN
AU - Bernemann, Sören Antonius
ID - 23796
KW - CFD
KW - landwirtschaftliche Abfälle
KW - Volume-of-Fluid
TI - Erstellung eines CFD-Modells für die Entwicklung eines innovativen Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen Abfällen
ER -
TY - CHAP
AU - van Laak, Lothar
ED - Schmidt, Jochen
ID - 31231
T2 - (Theologie - Kultur - Hermeneutik, Bd. 27).
TI - Erzählen und Ehtik in Peter Weiss’ ‚Rekonvaleszenz’. In: Erzähltes Selbst. Narrative Ethik aus theologischer und literaturwissenschaftlicher Sicht
ER -
TY - CHAP
AU - Mildorf, Jarmila
ID - 26828
SN - 978-3-8253-4783-3
T2 - Jahrbuch Literatur und Medizin, vol.12
TI - Erzähllogik und Krankheitserfahrung: Siri Hustvedts The Shaking Woman
ER -
TY - BOOK
AU - Schmidt, Jochen
ID - 36250
TI - Erzähltes Selbst. Narrative Ethik aus theologischer und literaturwissenschaftlicher Perspektive – The narrated self. Narrative Ethics from the perspectives of theology and literary studies
VL - 27
ER -
TY - THES
AU - Hoof, Simon
ID - 20240
TI - Essays on Cooperation in Differential Games
ER -
TY - THES
AU - Heinzel, Joachim
ID - 15824
TI - Essays on the Theory of Industrial Organization: Credence Goods, Vertical Relations and Product Bundling
ER -
TY - CONF
AU - Wolf, Verena
AU - Franke, Alena
AU - Bartelheimer, Christian
AU - Beverungen, Daniel
ID - 15501
T2 - Proceedings of the 15th International Conference on Wirtschaftsinformatik
TI - Establishing Smart Service Systems is a Challenge: A Case Study on Pitfalls and Implications
ER -
TY - JOUR
AU - Kirchgässner, Wilhelm
AU - Wallscheid, Oliver
AU - Böcker, Joachim
ID - 21250
IS - 7
JF - IEEE Transactions on Power Electronics
SN - 0885-8993
TI - Estimating Electric Motor Temperatures with Deep Residual Machine Learning
VL - 36
ER -
TY - JOUR
AU - Claes, Leander
AU - Steidl, Carolin
AU - Hetkämper, Tim
AU - Henning, Bernd
ID - 15489
JF - arXiv.org
TI - Estimation of acoustic wave non-linearity in ultrasonic measurement systems
ER -
TY - JOUR
AB - In child–robot interaction (cHRI) research, many studies pursue the goal to develop interactive systems that can be applied in everyday settings. For early education, increasingly, the setting of a kindergarten is targeted. However, when cHRI and research are brought into a kindergarten, a range of ethical and related procedural aspects have to be considered and dealt with.While ethical models elaborated within other human–robot interaction settings, e.g., assisted living contexts, can provide some important indicators for relevant issues, we argue that it is important to start developing a systematic approach to identify and tackle those ethical issues which rise with cHRI in kindergarten settings on a more global level and address the impact of the technology from a macroperspective beyond the effects on the individual. Based on our experience in conducting studies with children in general and pedagogical considerations on the role of the institution of kindergarten in specific, in this paper,we enfold some relevant aspects that have barely been addressed in an explicit way in current cHRI research. Four areas are analyzed and key ethical issues are identified in each area: (1) the institutional setting of a kindergarten, (2) children as a vulnerable group, (3) the caregivers’ role, and (4) pedagogical concepts. With our considerations, we aim at (i) broadening
the methodology of the current studies within the area of cHRI, (ii) revalidate it based on our comprehensive empirical
experience with research in kindergarten settings, both laboratory and real-world contexts, and (iii) provide a framework for the development of a more systematic approach to address the ethical issues in cHRI research within kindergarten settings.
AU - Tolksdorf, Nils F.
AU - Siebert, Scarlet
AU - Zorn, Isabel
AU - Horwath, Ilona
AU - Rohlfing, Katharina J.
ID - 24458
JF - International Journal of Social Robotics
KW - Robot ethics · Kindergarten settings · Child–robot interaction · Early childhood education
SN - 1875-4791
TI - Ethical Considerations of Applying Robots in Kindergarten Settings: Towards an Approach from a Macroperspective
ER -
TY - JOUR
AU - Tolksdorf, Nils Frederik
AU - Siebert, Scarlet
AU - Zorn, Isabel
AU - Horwarth, Ilona
AU - Rohlfing, Katharina
ID - 20241
JF - International Journal of Social Robotics
TI - Ethical considerations of applying robots in kindergarten settings: Towards an approach from a macroperspective.
ER -
TY - GEN
AU - Matzner, Tobias
AU - Heesen, Jessica
AU - Grundwald, Armin
AU - Roßnagel, Alexander
ID - 42929
T2 - der Plattform Lernende Systeme
TI - Ethik-Briefing. Leitfaden für eine verantwortungsvolle Entwicklung und Anwendung von KI-Systemen
ER -
TY - CHAP
AU - Eke, Norbert Otto
ED - Stillmark, Hans-Christian
ID - 19094
T2 - Peter Weiss erinnernd – Ansichten und Einsichten
TI - Ethische Erinnerungskultur. Peter Weiss‘ Memorial des ‚ganzen‘ Widerstands
ER -
TY - JOUR
AU - Krimphove, Dieter
ID - 36190
IS - 20
JF - ArbR - Arbeitsrecht Aktuell
TI - EuGH entscheidet zu Lücken im Europäischen Vorrangsprinzip
ER -
TY - BOOK
AU - Schönhärl, Korinna
ID - 29188
SN - 9780429286537
TI - European Investment in Greece in the Nineteenth Century
ER -
TY - CONF
AB - FPGAs have found increasing adoption in data center applications since a new generation of high-level tools have become available which noticeably reduce development time for FPGA accelerators and still provide high-quality results. There is, however, no high-level benchmark suite available, which specifically enables a comparison of FPGA architectures, programming tools, and libraries for HPC applications. To fill this gap, we have developed an OpenCL-based open-source implementation of the HPCC benchmark suite for Xilinx and Intel FPGAs. This benchmark can serve to analyze the current capabilities of FPGA devices, cards, and development tool flows, track progress over time, and point out specific difficulties for FPGA acceleration in the HPC domain. Additionally, the benchmark documents proven performance optimization patterns. We will continue optimizing and porting the benchmark for new generations of FPGAs and design tools and encourage active participation to create a valuable tool for the community. To fill this gap, we have developed an OpenCL-based open-source implementation of the HPCC benchmark suite for Xilinx and Intel FPGAs. This benchmark can serve to analyze the current capabilities of FPGA devices, cards, and development tool flows, track progress over time, and point out specific difficulties for FPGA acceleration in the HPC domain. Additionally, the benchmark documents proven performance optimization patterns. We will continue optimizing and porting the benchmark for new generations of FPGAs and design tools and encourage active participation to create a valuable tool for the community.
AU - Meyer, Marius
AU - Kenter, Tobias
AU - Plessl, Christian
ID - 21632
KW - FPGA
KW - OpenCL
KW - High Level Synthesis
KW - HPC benchmarking
SN - 9781665415927
T2 - 2020 IEEE/ACM International Workshop on Heterogeneous High-performance Reconfigurable Computing (H2RC)
TI - Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite
ER -
TY - CONF
AU - Gerick, J.
AU - Eickelmann, Birgit
ID - 51958
T2 - Vortrag im Rahmen der Veranstaltung Lernen mit digitalen Medien im Förderschwerpunkt Geistige Entwicklung. Ideen zur Bildungsteilhabe in der Mediengesellschaft am Institut für Qualitätsentwicklung an Schulen Schleswig-Holstein (IQSH). Kiel/Kronshagen (online)
TI - Evaluation 'Lernen mit digitalen Medien' und 'digitale Bildung in Pandemie-SItuationen' an Förderzentren Geistige Entwicklung
ER -
TY - GEN
AB - Robots are becoming increasingly autonomous and more capable. Because of a limited portable energy budget by e.g. batteries, and more demanding algorithms, an efficient computation is of interest. Field Programmable Gate Arrays (FPGAs) for example can provide fast and efficient processing and the Robot Operating System (ROS) is a popular
middleware used for robotic applications. The novel ReconROS combines version 2 of the Robot Operating System with ReconOS, a framework for integrating reconfigurable hardware. It provides a unified interface between software and hardware. ReconROS is evaluated in this thesis by implementing a Sobel filter as the video processing application, running on a Zynq-7000 series System on Chip. Timing measurements were taken of execution and transfer times and were compared to theoretical values. Designing the hardware implementation is done by C code using High Level Synthesis and with the interface and functionality provided by ReconROS. An important aspect is the publish/subscribe mechanism of ROS. The Operating System interface functions for publishing and subscribing are reasonably fast at below 10 ms for a 1 MB color VGA image. The main memory interface performs well at higher data sizes, crossing 100 MB/s at 20 kB and increasing to a maximum of around 150 MB/s. Furthermore, the hardware implementation introduces consistency to the execution times and performs twice as fast as the software implementation.
AU - Henke, Luca-Sebastian
ID - 21432
TI - Evaluation of a ReconOS-ROS Combination based on a Video Processing Application
ER -
TY - THES
AU - Bayazian, Hoda
ID - 27644
TI - Evaluation of LLDPE and PLA Films Manufactured with High Speed
ER -
TY - JOUR
AB - Acute anorexia nervosa (AN) constitutes an extreme physiological state. We aimed to detect state related metabolic alterations during inpatient admission and upon short- and long-term weight regain. In addition, we tested the hypothesis that metabolite concentrations adapt to those of healthy controls (HC) after long-term weight regain. Thirty-five female adolescents with AN and 25 female HC were recruited. Based on a targeted approach 187 metabolite concentrations were detected at inpatient admission (T0), after short-term weight recovery (T1; half of target-weight) and close to target weight (T2). Pattern hunter and time course analysis were performed. The highest number of significant differences in metabolite concentrations (N = 32) were observed between HC and T1. According to the detected main pattern, metabolite concentrations at T2 became more similar to those of HC. The course of single metabolite concentrations (e.g., glutamic acid) revealed different metabolic subtypes within the study sample. Patients with AN after short-term weight regain are in a greater “metabolic imbalance” than at starvation. After long-term weight regain, patients reach a metabolite profile similar to HC. Our results might be confounded by different metabolic subtypes of patients with AN.
AU - Föcker, Manuel
AU - Cecil, Alexander
AU - Prehn, Cornelia
AU - Adamski, Jerzy
AU - Albrecht, Muriel
AU - Adams, Frederike
AU - Hinney, Anke
AU - Libuda, Lars
AU - Bühlmeier, Judith
AU - Hebebrand, Johannes
AU - Peters, Triinu
AU - Antel, Jochen
ID - 27018
JF - Metabolites
SN - 2218-1989
TI - Evaluation of Metabolic Profiles of Patients with Anorexia Nervosa at Inpatient Admission, Short- and Long-Term Weight Regain—Descriptive and Pattern Analysis
ER -
TY - CONF
AB - In this paper, a full-bridge modular multilevel converter (MMC) and two half-bridge-based MMCs are evaluated for high-current low-voltage e.g. 100 - 400V DC-applications such as electrolysis, arc welding or datacenters with DC-power distribution. Usually, modular multilevel converters are used in high-voltage DC-applications (HVDC) in the multiple kV-range, but to meet the needs of a high-current demand at low output voltage levels, the modular converter concept requires adaptations. In the proposed concept, the MMC is used to step-down the three-phase medium-voltage of 10kV, and provide up to 1 MW to the load. Therefore, each module is extended by an LLC resonant converter to adapt to the specific electrolyzers DC-voltage range of 142 - 220V and to provide galvanic isolation. The six-arm MMC converter with half-bridge modules can be simplified and optimized by removing three arms, and thus halving the number of modules. In addition, the module voltage ripple and capacitor losses are decreased by 22% and 30% respectively. By rearranging the components of the half-bridge MMC to build a MMC consisting of grid-side full-bridge modules, the voltage ripple is further reduced by 78% and capacitor losses by 64%, while ensuring identical costs and volume for all MMCs. Finally, the LLC resonant converter is designed for the most efficient full-bridge MMC. The LLC can not operate at resonance with a fixed nominal module voltage of 770V because the output voltage is varying between 142 - 220V. By decreasing the module voltage down to 600V, additional points of operation can be operated in resonance, and the remaining are closer to resonance. The option to decrease the module voltage down to 600V, increases the number of required modules per arm from 12 to 15, which requires to balance the losses of the LLCs and the grid-side stages.
AU - Unruh, Roland
AU - Schafmeister, Frank
AU - Böcker, Joachim
ID - 29939
KW - Multilevel converters
KW - Resonant converter
KW - High voltage power converters
KW - ZVS Converters
KW - Combination MMC LLC
T2 - 2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)
TI - Evaluation of MMCs for High-Power Low-Voltage DC-Applications in Combination with the Module LLC-Design
ER -
TY - CONF
AB - In all fields, the significance of a reliable and accurate predictive model is almost unquantifiable. With deep domain knowledge, models derived from first principles typically outperforms other models in terms of reliability and accuracy. When it may become a cumbersome or an unachievable task to build or validate such models of complex (non-linear) systems, machine learning techniques are employed to build predictive models. However, the accuracy of such techniques is not only dependent on the hyper-parameters of the chosen algorithm, but also on the amount and quality of data. This paper investigates the application of classical time series forecasting approaches for the reliable prognostics of technical systems, where black box machine learning techniques might not successfully be employed given insufficient amount of data and where first principles models are infeasible due to lack of domain specific data. Forecasting by analogy, forecasting by analytical function fitting, an exponential smoothing forecasting method and the long short-term memory (LSTM) are evaluated and compared against the ground truth data. As a case study, the methods are applied to predict future crack lengths of riveted aluminium plates under cyclic loading. The performance of the predictive models is evaluated based on error metrics leading to a proposal of when to apply which forecasting approach.
AU - Aimiyekagbon, Osarenren Kennedy
AU - Bender, Amelie
AU - Sextro, Walter
ID - 17810
IS - 1
KW - PHM 2019
KW - crack propagation
KW - forecasting
KW - unevenly spaced time series
KW - step ahead prediction
KW - short time series
T2 - PHM Society European Conference
TI - Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data
VL - 5
ER -
TY - CONF
AB - Modern services consist of modular, interconnected
components, e.g., microservices forming a service mesh. To
dynamically adjust to ever-changing service demands, service
components have to be instantiated on nodes across the network.
Incoming flows requesting a service then need to be routed
through the deployed instances while considering node and link
capacities. Ultimately, the goal is to maximize the successfully
served flows and Quality of Service (QoS) through online service
coordination. Current approaches for service coordination are
usually centralized, assuming up-to-date global knowledge and
making global decisions for all nodes in the network. Such global
knowledge and centralized decisions are not realistic in practical
large-scale networks.
To solve this problem, we propose two algorithms for fully
distributed service coordination. The proposed algorithms can be
executed individually at each node in parallel and require only
very limited global knowledge. We compare and evaluate both
algorithms with a state-of-the-art centralized approach in extensive
simulations on a large-scale, real-world network topology.
Our results indicate that the two algorithms can compete with
centralized approaches in terms of solution quality but require
less global knowledge and are magnitudes faster (more than
100x).
AU - Schneider, Stefan Balthasar
AU - Klenner, Lars Dietrich
AU - Karl, Holger
ID - 19607
KW - distributed management
KW - service coordination
KW - network coordination
KW - nfv
KW - softwarization
KW - orchestration
T2 - IEEE International Conference on Network and Service Management (CNSM)
TI - Every Node for Itself: Fully Distributed Service Coordination
ER -
TY - JOUR
AU - Fuchs, Christian
ID - 38161
IS - 1
JF - tripleC: Communication
TI - Everyday Life and Everyday Communication in Coronavirus Capitalism
VL - 18
ER -
TY - JOUR
AU - Ho, Nam
AU - Kaufmann, Paul
AU - Platzner, Marco
ID - 17369
JF - International Journal of Hybrid intelligent Systems
TI - Evolution of Application-Specific Cache Mappings
ER -
TY - CONF
AB - Evolving diverse sets of high quality solutions has gained increasing interest in the evolutionary computation literature in recent years. With this paper, we contribute to this area of research by examining evolutionary diversity optimisation approaches for the classical Traveling Salesperson Problem (TSP). We study the impact of using different diversity measures for a given set of tours and the ability of evolutionary algorithms to obtain a diverse set of high quality solutions when adopting these measures. Our studies show that a large variety of diverse high quality tours can be achieved by using our approaches. Furthermore, we compare our approaches in terms of theoretical properties and the final set of tours obtained by the evolutionary diversity optimisation algorithm.
AU - Do, Anh Viet
AU - Bossek, Jakob
AU - Neumann, Aneta
AU - Neumann, Frank
ID - 48879
KW - diversity maximisation
KW - evolutionary algorithms
KW - travelling salesperson problem
SN - 978-1-4503-7128-5
T2 - Proceedings of the Genetic and Evolutionary Computation Conference
TI - Evolving Diverse Sets of Tours for the Travelling Salesperson Problem
ER -
TY - CONF
AB - One-shot optimization tasks require to determine the set of solution candidates prior to their evaluation, i.e., without possibility for adaptive sampling. We consider two variants, classic one-shot optimization (where our aim is to find at least one solution of high quality) and one-shot regression (where the goal is to fit a model that resembles the true problem as well as possible). For both tasks it seems intuitive that well-distributed samples should perform better than uniform or grid-based samples, since they show a better coverage of the decision space. In practice, quasi-random designs such as Latin Hypercube Samples and low-discrepancy point sets are indeed very commonly used designs for one-shot optimization tasks. We study in this work how well low star discrepancy correlates with performance in one-shot optimization. Our results confirm an advantage of low-discrepancy designs, but also indicate the correlation between discrepancy values and overall performance is rather weak. We then demonstrate that commonly used designs may be far from optimal. More precisely, we evolve 24 very specific designs that each achieve good performance on one of our benchmark problems. Interestingly, we find that these specifically designed samples yield surprisingly good performance across the whole benchmark set. Our results therefore give strong indication that significant performance gains over state-of-the-art one-shot sampling techniques are possible, and that evolutionary algorithms can be an efficient means to evolve these.
AU - Bossek, Jakob
AU - Doerr, Carola
AU - Kerschke, Pascal
AU - Neumann, Aneta
AU - Neumann, Frank
ID - 48849
KW - Continuous optimization
KW - Fully parallel search
KW - One-shot optimization
KW - Regression
KW - Surrogate-assisted optimization
SN - 978-3-030-58111-4
T2 - Parallel Problem Solving from Nature (PPSN XVI)
TI - Evolving Sampling Strategies for One-Shot Optimization Tasks
ER -
TY - CONF
AU - Schulze Darup, Moritz
ID - 35558
T2 - 2020 European Control Conference (ECC)
TI - Exact representation of piecewise affine functions via neural networks
ER -
TY - JOUR
AU - Tischendorf, R.
AU - Simmler, M.
AU - Weinberger, C.
AU - Bieber, M.
AU - Reddemann, M.
AU - Fröde, F.
AU - Lindner, J.
AU - Pitsch, H.
AU - Kneer, R.
AU - Tiemann, M.
AU - Nirschl, H.
AU - Schmid, H.-J.
ID - 20848
JF - Journal of Aerosol Science
SN - 0021-8502
TI - Examination of the evolution of iron oxide nanoparticles in flame spray pyrolysis by tailored in situ particle sampling techniques
ER -
TY - JOUR
AU - Riha, Christian
AU - Buchholz, Sven S.
AU - Chiatti, Olivio
AU - Wieck, Andreas D.
AU - Reuter, Dirk
AU - Fischer, Saskia F.
ID - 17995
JF - Applied Physics Letters
SN - 0003-6951
TI - Excess noise in Al x Ga 1 − xAs/GaAs based quantum rings
ER -
TY - CHAP
AU - Eke, Norbert Otto
ED - Eke, Norbert Otto
ID - 19099
T2 - Vormärz-Handbuch
TI - Exil
ER -
TY - CONF
AU - Yigitbas, Enes
AU - Tejedor, Christopher Bernal
AU - Engels, Gregor
ID - 18021
T2 - Proceedings of the Mensch und Computer 2020 (MuC ’20)
TI - Experiencing and Programming the ENIAC in VR
ER -
TY - CONF
AB - Ultrasonic wire bonding is a process to form electrical connections in electronics well established industry. Typically, a clamping tool is pressed on the wire and forced to vibrate at relative high frequency 40 to 100 kHz. The ultrasonic vibration is transmitted through the wire into the interface between wire and substrate. Due to frictional processes, contamination like oxide layers are removed from the contact zone, the surface roughness is reduced, and with increasing bond duration an metallic connection of wire and substrate is established. It is known that the amount of ultrasonic energy over time directly influences the strength and reliability of the bond connection, but the determination of optimum bond parameters is still a challenging experimental task. For this, in the past different model approaches have been presented, to calculate the bond quality by simulation. Measuring the friction between wire and substrate to validate these models is a challenging task at ultrasonic bonding frequency. Therefore a versatile test rig for bonding experiments at frequencies lower than 1 kHz is setup to get detailed insight into the different phases of the connection process. It includes a piezoelectric force sensor for the measurement of the three-dimensional process forces, an electrodynamic shaker for the vibration excitation and a conventional tension-compression testing machine to apply the bond normal force. Using this test rig, it is possible to observe the different phases of bond formation in detail, validate and enhance existing models and finally optimize bond parameters for different processes.
AU - Schemmel, Reinhard
AU - Scheidemann, Claus
AU - Hemsel, Tobias
AU - Kirsch, Olaf
AU - Sextro, Walter
ID - 17355
T2 - CIPS 2020; 11th International Conference on Integrated Power Electronics Systems
TI - Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding
ER -
TY - GEN
AU - Weiß, Deborah
AU - Schramm, Britta
AU - Kullmer, Gunter
ID - 23982
TI - Experimental and numerical preliminary investigations of the base material and preformed components regarding fatigue crack growth in joined structures
ER -
TY - JOUR
AU - Köhler, D.
AU - Gröger, B.
AU - Kupfer, R.
AU - Hornig, A.
AU - Gude, M.
ID - 30712
JF - Procedia Manufacturing
TI - Experimental and Numerical Studies on the Deformation of a Flexible Wire in an Injection Moulding Process
VL - 47
ER -
TY - JOUR
AU - Kirchhof, Manuel
AU - Gugeler, Katrin
AU - Fischer, Felix Richard
AU - Nowakowski, Michał
AU - Bauer, Alina
AU - Alvarez-Barcia, Sonia
AU - Abitaev, Karina
AU - Schnierle, Marc
AU - Qawasmi, Yaseen
AU - Frey, Wolfgang
AU - Baro, Angelika
AU - Estes, Deven P.
AU - Sottmann, Thomas
AU - Ringenberg, Mark R.
AU - Plietker, Bernd
AU - Bauer, Matthias
AU - Kästner, Johannes
AU - Laschat, Sabine
ID - 41022
IS - 17
JF - Organometallics
KW - Inorganic Chemistry
KW - Organic Chemistry
KW - Physical and Theoretical Chemistry
SN - 0276-7333
TI - Experimental and Theoretical Study on the Role of Monomeric vs Dimeric Rhodium Oxazolidinone Norbornadiene Complexes in Catalytic Asymmetric 1,2- and 1,4-Additions
VL - 39
ER -
TY - JOUR
AU - Kirchhof, Manuel
AU - Gugeler, Katrin
AU - Fischer, Felix Richard
AU - Nowakowski, Michal
AU - Bauer, Alina
AU - Alvarez-Barcia, Sonia
AU - Abitaev, Karina
AU - Schnierle, Marc
AU - Qawasmi, Yaseen
AU - Frey, Wolfgang
AU - Baro, Angelika
AU - Estes, Deven P.
AU - Sottmann, Thomas
AU - Ringenberg, Mark R.
AU - Plietker, Bernd
AU - Bauer, Matthias
AU - Kästner, Johannes
AU - Laschat, Sabine
ID - 41328
IS - 17
JF - Organometallics
KW - Inorganic Chemistry
KW - Organic Chemistry
KW - Physical and Theoretical Chemistry
SN - 0276-7333
TI - Experimental and Theoretical Study on the Role of Monomeric vs Dimeric Rhodium Oxazolidinone Norbornadiene Complexes in Catalytic Asymmetric 1,2- and 1,4-Additions
VL - 39
ER -
TY - JOUR
AU - Smirne, A
AU - Nitsche, T
AU - Egloff, D
AU - Barkhofen, Sonja
AU - De, S
AU - Dhand, I
AU - Silberhorn, Christine
AU - Huelga, S F
AU - Plenio, M B
ID - 26507
JF - Quantum Science and Technology
SN - 2058-9565
TI - Experimental control of the degree of non-classicality via quantum coherence
ER -
TY - GEN
AU - Relard, Sebastian
ID - 16940
TI - Experimente in der Wirtschaftsinfromatik zu Kreativität - Ein systematischer Literaturüberblick und Implikationen für Geschäftsmodellmodellierungstools
ER -
TY - CONF
AU - Göddecke, Johannes
AU - Meschut, Gerson
AU - Teutenberg, Dominik
AU - Ummenhofer, Thomas
AU - Albiez, Matthias
AU - Damm, Jannis
AU - Matzenmiller, Anton
AU - Kötz, Fabian
ID - 20321
T2 - 20. Kolloquium Gemeinsame Forschung in der Klebtechnik
TI - Experimentelle und numerische Untersuchung der Dämpfungseigenschaften geklebter Strukturen unter dynamischer Beanspruchung
ER -
TY - JOUR
AU - Seitz, Susanne
AU - Häsel-Weide, Uta
AU - Wilke, Yannik
AU - Wallner, Melina
ID - 31553
IS - 2
JF - K:ON Kölner Online-Journal für Lehrer*innenbildung
TI - Expertise von Lehrpersonen für inklusiven Mathematikunterricht der Sekundarstufe - Ausgangspunkte zur Professionalisierungsforschung.
ER -
TY - CHAP
AU - Harteis, Christian
AU - Billett, Stephen
AU - Gruber, Hans
ED - Neuweg, Georg
ED - Hermkes, Rico
ED - Bonowski, Tim
ID - 26681
SN - 9783763960071
T2 - Implizites Wissen. Berufs- und wirtschaftspädagogische Annäherungen
TI - Expertiseentwicklung: Umwandlung von Wissen in Können
ER -
TY - JOUR
AU - Nguyen Quang Do, Lisa
AU - Bodden, Eric
ID - 20508
JF - IEEE Transactions on Software Engineering
TI - Explaining Static Analysis with Rule Graphs
ER -
TY - JOUR
AB - In real-world problems, uncertainties (e.g., errors in the measurement,
precision errors) often lead to poor performance of numerical algorithms when
not explicitly taken into account. This is also the case for control problems,
where optimal solutions can degrade in quality or even become infeasible. Thus,
there is the need to design methods that can handle uncertainty. In this work,
we consider nonlinear multi-objective optimal control problems with uncertainty
on the initial conditions, and in particular their incorporation into a
feedback loop via model predictive control (MPC). In multi-objective optimal
control, an optimal compromise between multiple conflicting criteria has to be
found. For such problems, not much has been reported in terms of uncertainties.
To address this problem class, we design an offline/online framework to compute
an approximation of efficient control strategies. This approach is closely
related to explicit MPC for nonlinear systems, where the potentially expensive
optimization problem is solved in an offline phase in order to enable fast
solutions in the online phase. In order to reduce the numerical cost of the
offline phase, we exploit symmetries in the control problems. Furthermore, in
order to ensure optimality of the solutions, we include an additional online
optimization step, which is considerably cheaper than the original
multi-objective optimization problem. We test our framework on a car
maneuvering problem where safety and speed are the objectives. The
multi-objective framework allows for online adaptations of the desired
objective. Alternatively, an automatic scalarizing procedure yields very
efficient feedback controls. Our results show that the method is capable of
designing driving strategies that deal better with uncertainties in the initial
conditions, which translates into potentially safer and faster driving
strategies.
AU - Hernández Castellanos, Carlos Ignacio
AU - Ober-Blöbaum, Sina
AU - Peitz, Sebastian
ID - 16297
JF - International Journal of Robust and Nonlinear Control
TI - Explicit Multi-objective Model Predictive Control for Nonlinear Systems Under Uncertainty
VL - 30(17)
ER -
TY - CHAP
AU - Kunert, Irene Dorothea
ED - Sinner, Carsten
ED - Paasch-Kaiser, Christine
ED - Härtel, Johannes
ID - 52241
T2 - Translation 4.0. Dolmetschen und Übersetzen im Zeitalter der Digitalisierung
TI - Explizierung und Implizierung von Konsekutivmarkern in Übersetzungen im Europarl-Korpus
ER -
TY - JOUR
AB - In this article, we focus on the acceleration of a chemical reaction simulation that relies on a system of stiff ordinary differential equation (ODEs) targeting heterogeneous computing systems with CPUs and field-programmable gate arrays (FPGAs). Specifically, we target an essential kernel of the coupled chemistry aerosol-tracer transport model to the Brazilian developments on the regional atmospheric modeling system (CCATT-BRAMS). We focus on a linear solve step using the QR factorization based on the modified Gram-Schmidt method as the basis of the ODE solver in this application. We target Intel hardware accelerator research program (HARP) architecture with the OpenCL programming environment for these early experiments. Our design exploration reveals a hardware design that is up to 4 times faster than the original iterative Jacobi method used in this solver. Still, even with hardware support, the overall performance of our QR-based hardware is lower than its original software version.
AU - Alberto Oliveira de Souza Junior, Carlos
AU - Bispo, João
AU - Cardoso, João M. P.
AU - Diniz, Pedro C.
AU - Marques, Eduardo
ID - 17359
JF - Electronics
KW - pc2-harp-ressources
SN - 2079-9292
TI - Exploration of FPGA-Based Hardware Designs for QR Decomposition for Solving Stiff ODE Numerical Methods Using the HARP Hybrid Architecture
ER -
TY - BOOK
AB - Digital media are transformative: they (re)shape the ways of communicating, relating, doing, knowing, and living as much as they are themselves subject to continuous transformation. The contributions in this volume explore these contemporary shifts in and of digital cultures by analyzing a wide range of topics: from data, infrastructures, algorithms, logistics, economies, politics, identities, collectives […] It’s Open Access! Check it out!
ED - Burkhardt, Marcus
ED - Grashöfer, Katja
ED - Shnayien, Mary
ID - 35177
TI - Explorations in Digital Cultures
ER -
TY - BOOK
ED - Burkhardt, Marcus
ED - Grashöfer, Katja
ED - Shnayien, Marie-Luise
ID - 42916
TI - Explorations in Digital Cultures
ER -
TY - CONF
AU - Szopinski, Daniel
ID - 19741
T2 - Proceedings of the 41st International Conference on Information Systems (ICIS)
TI - Exploring design principles for stimuli in business model development tools
ER -
TY - JOUR
AU - Weiß, M.
AU - Brehm, Martin
ID - 44999
JF - Molecules
TI - Exploring Free Energy Profiles of Enantioselective Organocatalytic Aldol Reactions under Full Solvent Influence
VL - 25 (24)
ER -
TY - JOUR
AU - Dreßler, C.
AU - Kabbe, G.
AU - Brehm, Martin
AU - Sebastiani, D.
ID - 44995
JF - J. Chem. Phys.
TI - Exploring Non-Equilibrium Molecular Dynamics of Mobile Protons in the Solid Acid CsH2PO4 on the Micrometer and Microsecond Scale
VL - 152 (16)
ER -
TY - JOUR
AU - Naumova, Maria A.
AU - Kalinko, Aleksandr
AU - Wong, Joanne W. L.
AU - Alvarez Gutierrez, Sol
AU - Meng, Jie
AU - Liang, Mingli
AU - Abdellah, Mohamed
AU - Geng, Huifang
AU - Lin, Weihua
AU - Kubicek, Katharina
AU - Biednov, Mykola
AU - Lima, Frederico
AU - Galler, Andreas
AU - Zalden, Peter
AU - Checchia, Stefano
AU - Mante, Pierre-Adrien
AU - Zimara, Jennifer
AU - Schwarzer, Dirk
AU - Demeshko, Serhiy
AU - Murzin, Vadim
AU - Gosztola, David
AU - Jarenmark, Martin
AU - Zhang, Jianxin
AU - Bauer, Matthias
AU - Lawson Daku, Max Latevi
AU - Khakhulin, Dmitry
AU - Gawelda, Wojciech
AU - Bressler, Christian
AU - Meyer, Franc
AU - Zheng, Kaibo
AU - Canton, Sophie E.
ID - 41028
IS - 21
JF - The Journal of Chemical Physics
KW - Physical and Theoretical Chemistry
KW - General Physics and Astronomy
SN - 0021-9606
TI - Exploring the light-induced dynamics in solvated metallogrid complexes with femtosecond pulses across the electromagnetic spectrum
VL - 152
ER -
TY - JOUR
AU - Klämpfl, Martin
AU - Lobinger, Babett
AU - Lehmann, Tim
ID - 35628
IS - 4
JF - International Journal of Sport Psychology
TI - Exploring the phenomenological, environmental, and task-related aspects of the Yips in Tennis, Miniature Golf, Darts, and Archery.
VL - 51
ER -
TY - CONF
AB - Effective customer loyalty programs are essential for every company. Small and medium sized brick-and- mortar stores, such as bakeries, butcher and flower shops, often share a common overarching loyalty program, organized by a third-party provider. Furthermore, these small shops have limited resources and often cannot afford complex BI tools. Out of these reasons we investigated how traditional brick-and- mortar stores can benefit from an expansion of service functionalities of a loyalty card provider. To answer this question, we cooperated with a cross-industry customer loyalty program in a polycentric region. The loyalty program was transformed from simple card-based solution to a mobile app for customers and a web- application for shop owners. The new solution offers additional BI services for performing data analytics and strengthening the position of brick-and-mortar stores. Participating shops can work together in order to increase sales and align marketing campaigns. Therefore, shopping data from 12 years, 55 shops, and 19,000 customers was analyzed.
AU - Kucklick, Jan-Peter
AU - Kamm, Michael Reiner
AU - Schneider, Johannes
AU - vom Brocke, Jan
ID - 35660
KW - brick-and-mortar stores
KW - business intelligence
KW - case study
KW - loyalty program
T2 - Proceedings of the 53rd Hawaii International Conference on System Sciences
TI - Extending Loyalty Programs with BI Functionalities A Case Study for Brick-and-Mortar Stores
ER -
TY - GEN
AU - Jaganath, Vivek
ID - 20821
TI - Extension and Evaluation of Python-based High-Level Synthesis Tool Flows
ER -
TY - JOUR
AU - Pukrop, Matthias
AU - Schumacher, Stefan
ID - 19511
JF - Physical Review E
KW - pc2-ressources
SN - 2470-0045
TI - Externally controlled Lotka-Volterra dynamics in a linearly polarized polariton fluid
ER -
TY - JOUR
AU - Pukrop, Matthias
AU - Schumacher, Stefan
ID - 40443
IS - 1
JF - Physical Review E
SN - 2470-0045
TI - Externally controlled Lotka-Volterra dynamics in a linearly polarized polariton fluid
VL - 101
ER -
TY - CONF
AU - Alshomary, Milad
AU - Düsterhus, Nick
AU - Wachsmuth, Henning
ID - 7283
T2 - Proceedings of 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval
TI - Extractive Snippet Generation for Arguments
ER -
TY - CONF
AU - Tornede, Alexander
AU - Wever, Marcel Dominik
AU - Hüllermeier, Eyke
ID - 17407
T2 - Discovery Science
TI - Extreme Algorithm Selection with Dyadic Feature Representation
ER -
TY - GEN
AU - Hilgert, Joachim
ID - 51557
T2 - Mathematische Semesterberichte
TI - Fabio Toscano: The Secret Formula – How a Mathematical Duel Inflamed Renaissance Italy and Uncovered the Cubic Equation. Princeton University Press 2020
VL - 67
ER -
TY - CHAP
AU - Sprütten, F.
AU - Wessel, Lena
AU - Zentgraf, K.
AU - Prediger, S.
ED - Prediger, S.
ID - 48405
T2 - Sprachbildender Mathematikunterricht in der Sekundarstufe. Ein forschungsbasiertes Praxisbuch
TI - Fach- und sprachintegrierte Ansätze für Neuzugewanderte
ER -
TY - JOUR
AB - Metaphern spielen Ansätzen der Kognitiven Linguistik zufolge eine wichtige Rolle dafür, sich abstrakte Sachverhalte zu erschließen. Die Autorin analysiert zwei Interviews über Fachkulturen aus einer früheren Untersuchung (Scharlau und Huber 2019) auf ihre wichtigsten lehrbezogenen Metaphern. Diese werden auf der Basis von kognitiv-linguistischen Ansätzen und Methoden interpretiert und Ansätze für eine hochschuldidaktische Nutzung eines solchen Blickwinkels skizziert.
AU - Scharlau, Ingrid
ID - 28693
IS - 25
JF - die hochschullehre
KW - Fachkultur
KW - Fachkulturen
KW - Metapher
SN - 2199-8825
TI - Fachkulturen unter der Lupe: Metaphern in Reflexionen über die Lehre
ER -
TY - GEN
AU - Markewitz, Friedrich
ED - Gansel, Christina
ED - Spieß, Constanze
ID - 33017
T2 - Fachtextsorte
TI - Fachtextsorte
VL - 6
ER -
TY - JOUR
AB - In dem vorliegenden Beitrag werden insgesamt zehn authentische Fallportraits von Bielefelder Grundschulkindern vorgestellt. Sie bieten sowohl Einblicke in die familiäre als auch in die schulische Situation von Kindern, so dass heterogene Lebenswirklichkeiten mehrperspektivisch abgebildet werden. Die Fallportraits können im Rahmen der phasenübergreifenden Lehrer_innenbilung eingesetzt werden, um bspw. Transferprozesse zwischen Theorie und Praxis zu unterstützen, eine kritisch-reflexive Auseinandersetzung sowie ein Sensibilisieren für heterogene Lebenswirklichkeiten zu fördern, etc. Didaktische Implementierungsmöglichkeiten und Anknüpfungspunkte zur Portfolioarbeit (2), vier exemplarische theoretische Schwerpunkte (3) sowie der Prozess der Fallportraitgenerierung (4) werden zunächst im vorliegenden Beitrag erläutert, ehe die zehn Fallportraits (5), ein Fazit (6) und zwei exemplarische Veranschaulichungsmaterialien (7) den Beitrag beenden.
AU - Pieper, Catania
AU - Kottmann, Brigitte
AU - Miller, Susanne
ID - 39821
IS - 1
JF - HLZ - Herausforderung Lehrer_innenbildung, Zeitschrift zur Konzeption, Gestaltung und Diskussion
TI - Fallportraits von Bielefelder Grundschulkindern. Fallarbeit in der (phasenübergreifenden) Lehrer_innenbildung be
VL - 3
ER -
TY - CHAP
AB - Das Handbuch Familie repräsentiert den theoretischen und empirischen Stand der Familienforschung aus konsequent interdisziplinärer Sicht. Mit dem Schwerpunkt auf die Themen Bildung und Erziehung und dem Bereich, der Familienarbeit in sozialpädagogischen Arbeitsfeldern bedeutet, bietet der Band die komplette Bandbreite Diskurses ab. In der neu konzipierten Struktur wird ein umfassendes Bild von Familie als einer pädagogischen Institution gezeichnet, in das die aktuellen wissenschaftlichen Erkenntnisse und Forschungsergebnisse einfließen.
AU - Landhäußer, Sandra
ED - Ecarius, Jutta
ED - Schierbaum, Anja
ID - 36503
KW - ng Armut Familientherapie Rechtsextreme Familen
T2 - Handbuch Familie. Bildung, Erziehung und pädagogische Arbeitsfelder
TI - Familie und verantwortete Elternschaft
ER -
TY - GEN
AU - Löer, Christin
ID - 19439
TI - Fanden Sie diese Bewertung nützlich? Ein Ansatz zur Vorhersage der Nützlichkeit von Online-Bewertungen
ER -
TY - CHAP
AB - Using near-field (NF) scan data to predict the far-field (FF) behaviour of radiating electronic systems represents a novel method to accompany the whole RF design process. This approach involves so-called Huygens' box as an efficient radiation model inside an electromagnetic (EM) simulation tool and then transforms the scanned NF measured data into the FF. For this, the basic idea of the Huygens'box principle and the NF-to-FF transformation are briefly presented. The NF is measured on the Huygens' box around a device under test using anNF scanner, recording the magnitude and phase of the site-related magnetic and electric components. A comparison between a fullwave simulation and the measurement results shows a good similarity in both the NF and the simulated and transformed FF.Thus, this method is applicable to predict the FF behaviour of any electronic system by measuring the NF. With this knowledge, the RF design can be improved due to allowing a significant reduction of EM compatibility failure at the end of the development flow. In addition, the very efficient FF radiation model can be used for detailed investigations in various environments and the impact of such an equivalent radiation source on other electronic systems can be assessed.
AU - Schröder, Dominik
AU - Lange, Sven
AU - Hangmann, Christian
AU - Hedayat, Christian
ID - 21542
KW - Huygens' box
KW - NF-to-FF transformation
KW - efficient FF radiation model
KW - FF behaviour
KW - EMI assessment
KW - PCB
KW - near-field measurements
KW - efficient radiation model
KW - far-field behaviour
KW - RF design process
KW - far-field prediction
KW - Huygens'box principle
KW - fullwave simulation
KW - electronic system radiation
KW - equivalent radiation source
KW - electromagnetic simulation tool
KW - near-field scan data
KW - EM compatibility failure reduction
SN - 9781839530494
T2 - Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis
TI - Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs
ER -
TY - CONF
AB - We consider the problem of computing shortest paths in \emph{hybrid networks}, in which nodes can make use of different communication modes. For example, mobile phones may use ad-hoc connections via Bluetooth or Wi-Fi in addition to the cellular network to solve tasks more efficiently. Like in this case, the different communication modes may differ considerably in range, bandwidth, and flexibility. We build upon the model of Augustine et al. [SODA '20], which captures these differences by a \emph{local} and a \emph{global} mode. Specifically, the local edges model a fixed communication network in which $O(1)$ messages of size $O(\log n)$ can be sent over every edge in each synchronous round. The global edges form a clique, but nodes are only allowed to send and receive a total of at most $O(\log n)$ messages over global edges, which restricts the nodes to use these edges only very sparsely.
We demonstrate the power of hybrid networks by presenting algorithms to compute Single-Source Shortest Paths and the diameter very efficiently in \emph{sparse graphs}. Specifically, we present exact $O(\log n)$ time algorithms for cactus graphs (i.e., graphs in which each edge is contained in at most one cycle), and $3$-approximations for graphs that have at most $n + O(n^{1/3})$ edges and arboricity $O(\log n)$. For these graph classes, our algorithms provide exponentially faster solutions than the best known algorithms for general graphs in this model.
Beyond shortest paths, we also provide a variety of useful tools and techniques for hybrid networks, which may be of independent interest.
AU - Feldmann, Michael
AU - Hinnenthal, Kristian
AU - Scheideler, Christian
ID - 20755
T2 - Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS)
TI - Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs
ER -
TY - CONF
AU - Çavdar, Serkan
AU - Meschut, Gerson
AU - Wulf, A.
AU - Hesebeck, O.
AU - Brede, M.
AU - Mayer, B.
ID - 20381
T2 - Joining in Car Body Engineering 2020
TI - Fatigue life prediction of adhesively bonded FRP-aluminium-joints with hyperelastic behavior under cyclic multiaxial stress state
ER -
TY - JOUR
AU - Ahrens, Stephan
ID - 44371
IS - Nr. 1
JF - Journal of Italian Cinema & Media Studies 9, Nr. 1
TI - Federico Fellini’s Sanctifying Effect.
ER -
TY - JOUR
AU - Schulz, Christian
AU - Matzner, Tobias
ID - 51753
JF - Navigationen – Zeitschrift für Medien- und Kulturwissenschaften
TI - Feed the Interface – Social-Media-Feeds als Schwellen
VL - 2
ER -
TY - JOUR
AU - Schulz, Christian
AU - Matzner, Tobias
ID - 28168
IS - 2
JF - Navigationen
TI - Feed the Interface – Social-Media-Feeds und filternde Schwellen
VL - 20
ER -
TY - CHAP
AB - In the development of model predictive controllers for PDE-constrained problems, the use of reduced order models is essential to enable real-time applicability. Besides local linearization approaches, proper orthogonal decomposition (POD) has been most widely used in the past in order to derive such models. Due to the huge advances concerning both theory as well as the numerical approximation, a very promising alternative based on the Koopman operator has recently emerged. In this chapter, we present two control strategies for model predictive control of nonlinear PDEs using data-efficient approximations of the Koopman operator. In the first one, the dynamic control system is replaced by a small number of autonomous systems with different yet constant inputs. The control problem is consequently transformed into a switching problem. In the second approach, a bilinear surrogate model is obtained via a convex combination of these autonomous systems. Using a recent convergence result for extended dynamic mode decomposition (EDMD), convergence of the reduced objective function can be shown. We study the properties of these two strategies with respect to solution quality, data requirements, and complexity of the resulting optimization problem using the 1-dimensional Burgers equation and the 2-dimensional Navier–Stokes equations as examples. Finally, an extension for online adaptivity is presented.
AU - Peitz, Sebastian
AU - Klus, Stefan
ID - 16289
SN - 0170-8643
T2 - Lecture Notes in Control and Information Sciences
TI - Feedback Control of Nonlinear PDEs Using Data-Efficient Reduced Order Models Based on the Koopman Operator
VL - 484
ER -
TY - GEN
AU - Elit, Stefan
ED - Arend, Stefanie
ED - Jahn, Bernhard
ED - Robert, Jörg
ED - Seidel, Robert
ED - Steiger, Johann Anselm
ED - Tilg, Stefan
ED - Vollhardt, Friedrich
ID - 31417
T2 - Frühe Neuzeit in Deutschland. 1620-1720. Literaturwissenschaftliches Verfasserlexikon (VL17), Bd. III
TI - Ferdinand von Fürstenberg
VL - Bd. III
ER -
TY - CHAP
AU - Eckel, Julia
ED - Beyer, Marcel
ID - 44470
T2 - Exzess und Entzug: Ferres vor Gursky, Ferres vor Immendorff
TI - Ferres vor/neben/mit/am … – Instagrammatikalische Präpositionen
ER -
TY - GEN
AU - Autsch, Sabiene
ID - 49947
IS - 155
T2 - PUR [= Paderborner Universitätsreden. Hg. von. Prof. em. Dr. Dr. hc. malt. Peter Freese]
TI - Festrede auf Maria v. Welser anlässlich der Verleihung der Ehrendoktorwürde am 14.11.2019 durch die kulturwissenschaftliche Fakultät der Universität Paderborn
ER -
TY - CHAP
AU - Lünne, Steffen
AU - Schnell, Susanne
AU - Biehler, Rolf
ED - Porsch, R.
ED - Rösken-Winter, B.
ID - 35914
SN - 9783658272920
T2 - Professionelles Handeln im fachfremd erteilten Mathematikunterricht
TI - Ffunt@OWL – Konzept und Gestaltungsprinzipien zur Qualifizierung fachfremd Mathematik unterrichtender Lehrkräfte der Sekundarstufe I
ER -
TY - BOOK
ED - Egidi, Margreth
ID - 31514
TI - Figuren des Dritten im höfischen Roman, Beiträge zur mediävistischen Erzählforschung 2020, Themenheft 4
ER -
TY - GEN
ED - Bäcker , Theresia
ED - Kathöfer, Jasmin
ED - Schulz, Christian
ID - 51763
T2 - Navigationen – Zeitschrift für Medien- und Kulturwissenschaften
TI - Filter(n) – Geschichte, Ästhetik, Praktiken
VL - 2
ER -
TY - JOUR
AU - Schroeter-Wittke, Harald
ID - 41067
IS - 3
JF - Praktische Theologie
SN - 0946-3518
TI - Finding Gabriel. Zum 50. Geburtstag von Brad Mehldau
VL - 55
ER -
TY - JOUR
AB - Abstract
$L^2$ norm error estimates of semi- and full discretizations of wave equations with dynamic boundary conditions, using bulk–surface finite elements and Runge–Kutta methods, are studied. The analysis rests on an abstract formulation and error estimates, via energy techniques, within this abstract setting. Four prototypical linear wave equations with dynamic boundary conditions are analysed, which fit into the abstract framework. For problems with velocity terms or with acoustic boundary conditions we prove surprising results: for such problems the spatial convergence order is shown to be less than 2. These can also be observed in the presented numerical experiments.
AU - Hipp, David
AU - Kovács, Balázs
ID - 45953
IS - 1
JF - IMA Journal of Numerical Analysis
KW - Applied Mathematics
KW - Computational Mathematics
KW - General Mathematics
SN - 0272-4979
TI - Finite element error analysis of wave equations with dynamic boundary conditions: L2 estimates
VL - 41
ER -