TY - JOUR AB - AbstractHeated tool butt welding is a method often used for joining thermoplastics, especially when the components are made out of different materials. The quality of the connection between the components crucially depends on a suitable choice of the parameters of the welding process, such as heating time, temperature, and the precise way how the parts are then welded. Moreover, when different materials are to be joined, the parameter values need to be tailored to the specifics of the respective material. To this end, in this paper, three approaches to tailor the parameter values to optimize the quality of the connection are compared: a heuristic by Potente, statistical experimental design, and Bayesian optimization. With the suitability for practice in mind, a series of experiments are carried out with these approaches, and their capabilities of proposing well-performing parameter values are investigated. As a result, Bayesian optimization is found to yield peak performance, but the costs for optimization are substantial. In contrast, the Potente heuristic does not require any experimentation and recommends parameter values with competitive quality. AU - Gevers, Karina AU - Tornede, Alexander AU - Wever, Marcel Dominik AU - Schöppner, Volker AU - Hüllermeier, Eyke ID - 33090 JF - Welding in the World KW - Metals and Alloys KW - Mechanical Engineering KW - Mechanics of Materials SN - 0043-2288 TI - A comparison of heuristic, statistical, and machine learning methods for heated tool butt welding of two different materials ER - TY - GEN AB - In this article, we build on previous work to present an optimization algorithm for nonlinearly constrained multi-objective optimization problems. The algorithm combines a surrogate-assisted derivative-free trust-region approach with the filter method known from single-objective optimization. Instead of the true objective and constraint functions, so-called fully linear models are employed and we show how to deal with the gradient inexactness in the composite step setting, adapted from single-objective optimization as well. Under standard assumptions, we prove convergence of a subset of iterates to a quasi-stationary point and if constraint qualifications hold, then the limit point is also a KKT-point of the multi-objective problem. AU - Berkemeier, Manuel Bastian AU - Peitz, Sebastian ID - 33150 T2 - arXiv:2208.12094 TI - Multi-Objective Trust-Region Filter Method for Nonlinear Constraints using Inexact Gradients ER - TY - JOUR AB - AbstractNon-pharmaceutical interventions are an effective strategy to prevent and control COVID-19 transmission in the community. However, the timing and stringency to which these measures have been implemented varied between countries and regions. The differences in stringency can only to a limited extent be explained by the number of infections and the prevailing vaccination strategies. Our study aims to shed more light on the lockdown strategies and to identify the determinants underlying the differences between countries on regional, economic, institutional, and political level. Based on daily panel data for 173 countries and the period from January 2020 to October 2021 we find significant regional differences in lockdown strategies. Further, more prosperous countries implemented milder restrictions but responded more quickly, while poorer countries introduced more stringent measures but had a longer response time. Finally, democratic regimes and stronger manifested institutions alleviated and slowed down the introduction of lockdown measures. AU - Redlin, Margarete ID - 33221 JF - Journal of Regulatory Economics KW - Economics and Econometrics SN - 0922-680X TI - Differences in NPI strategies against COVID-19 ER - TY - JOUR AB - AbstractWe provide a partial equilibrium model wherein AI provides abilities combined with human skills to provide an aggregate intermediate service good. We use the model to find that the extent of automation through AI will be greater if (a) the economy is relatively abundant in sophisticated programs and machine abilities compared to human skills; (b) the economy hosts a relatively large number of AI-providing firms and experts; and (c) the task-specific productivity of AI services is relatively high compared to the task-specific productivity of general labor and labor skills. We also illustrate that the contribution of AI to aggregate productive labor service depends not only on the amount of AI services available but on the endogenous number of automated tasks, the relative productivity of standard and IT-related labor, and the substitutability of tasks. These determinants also affect the income distribution between the two kinds of labor. We derive several empirical implications and identify possible future extensions. AU - Gries, Thomas AU - Naudé, Wim ID - 33220 IS - 1 JF - Journal for Labour Market Research KW - General Medicine SN - 2510-5019 TI - Modelling artificial intelligence in economics VL - 56 ER - TY - CONF AU - Daymude, Joshua J. AU - Richa, Andréa W. AU - Scheideler, Christian ED - Aspnes, James ED - Michail, Othon ID - 33230 T2 - 1st Symposium on Algorithmic Foundations of Dynamic Networks, SAND 2022, March 28-30, 2022, Virtual Conference TI - Local Mutual Exclusion for Dynamic, Anonymous, Bounded Memory Message Passing Systems VL - 221 ER - TY - JOUR AU - Gries, Thomas AU - Müller, Veronika AU - Jost, John T. ID - 33219 IS - 2 JF - Psychological Inquiry KW - General Psychology SN - 1047-840X TI - The Market for Belief Systems: A Formal Model of Ideological Choice VL - 33 ER - TY - CONF AU - Peeters, Hendrik AU - Habig, Sebastian AU - Fechner, Sabine ED - Habig, Sebastian ED - van Vorst, Helena ID - 33224 KW - augmented reality KW - modelle KW - digitale Medien T2 - Unsicherheit als Element von naturwissenschaftsbezogenen Bildungsprozessen TI - Einbettung von Augmented Reality in den Experimentierprozess VL - 42 ER - TY - CHAP AB - Das Programm Maschinenbau in China (mb-cn) ist eine spezielle Ausprägung der Paderborner Masterstudiengänge Maschinenbau, Wirtschafts- und Chemieingenieurwesen. Im Rahmen dieses Programms wird der technisch-interkulturelle Fachsprachkurs »Fachspezifisches Chinesisch« angeboten, der die praktische Anwendung des Sprachenlernens mit studiengangsbezogenen Angeboten kombiniert. Ziel des Kurses ist es, die Studierenden zu befähigen eine Hanyu-Shuiping-Kaoshi-Prüfung (HSK) auf Niveaustufe 2 zu bestehen sowie ihnen vertiefendes Fachvokabular aus den Fachbereichen Mathematik, Informatik, Wirtschaft, Technik und Maschinenbau zu vermitteln. Ausgewählte Beispiele in der fachsprachlichen Anwendung beziehensich auf die Beschreibung eines Gegenstandes wie den Getriebeaufbau und das Wirkprinzip eines Prüfstandes. Der Artikel soll als Evaluation und Rückschau auf das Pilotprojekt der Universität Paderborn dienen und Hilfestellung geben, wie die Konzeption und Umsetzung (auch unter Coronabedingungen) gelingen kann. AU - Hambach, Dennis ED - Thelen, Gabriele ED - Obendiek, Helena ED - Bai, Yinchun ID - 33233 SN - 2699-7681 T2 - Handbuch China-Kompetenzen TI - »Fachspezifisches Chinesisch« an der Universität Paderborn ER - TY - CHAP AB - Das seit den 1990er Jahren andauernde Engagement der Universität Paderborn in China hat zur Ausbildung von technisch-interkultureller China-Kompetenz in vielen Bereichengeführt. Die Universität Paderborn (UPB) unterhält derzeit sechs intensive Austauschpartnerschaften mit chinesischen Hochschulen. Im Rahmen der Masterstudiengänge Maschinenbau, Wirtschafts- und Chemieingenieurwesen sowie Wirtschaftsingenieurwesen wird die Studienausrichtung Maschinenbau in China (mb-cn) angeboten. Diese Studienausrichtung wird inenger Zusammenarbeit mit namhaften, global agierenden Partnerfirmen durchgeführt, die eigene Tochterfirmen in China oder eine starke Verbindung zu chinesischen Unternehmen haben. Zusätzlich können die Studierenden ein Fachpraktikum in einem deutschen Unternehmen in China absolvieren. Im Rahmen des Artikels wird das mb-cn-Projekt ausführlich vorgestellt. Die hierbeigeschilderten Erfahrungen mit dem Aufbau der Kooperation sowie die gezogenen Rückschlüsse auf die Ergebnisse des Projekts sollen dazu dienen, andere Einrichtungen beim Aufbau ähnlicher Kooperation zu unterstützen. AU - Denzer, Vera AU - Hambach, Dennis ED - Thelen, Gabriele ED - Obendiek, Helena ED - Bai, Yinchun ID - 33232 SN - 2699-7681 T2 - Handbuch China-Kompetenzen TI - Maschinenbau in China ER - TY - CONF AU - Götte, Thorsten AU - Scheideler, Christian ED - Agrawal, Kunal ED - Lee, I-Ting Angelina ID - 33240 T2 - SPAA ’22: 34th ACM Symposium on Parallelism in Algorithms and Architectures, Philadelphia, PA, USA, July 11 - 14, 2022 TI - Brief Announcement: The (Limited) Power of Multiple Identities: Asynchronous Byzantine Reliable Broadcast with Improved Resilience through Collusion ER - TY - CHAP AU - Herzig, Bardo ED - Reinke de Buitrago, S. ID - 33248 SN - 978-3658370428 T2 - Radikalisierungsnarrative online. Perspektiven und Lehren aus Wissenschaft und Prävention TI - Medienbildung als Radikalisierungsprävention? ER - TY - CHAP AU - Herzig, Bardo AU - Martin, Alexander ED - Püttmann, C. ED - Wortmann, E. ID - 33247 SN - 978-3825256203 T2 - Handbuch Pädagogikunterricht TI - Lehren und Lernen mit (digitalen) Medien im Pädagogikunterricht ER - TY - CONF AU - Claes, Leander AU - Feldmann, Nadine AU - Schulze, Veronika AU - Jurgelucks, Benjamin AU - Walther, Andrea AU - Henning, Bernd ID - 6553 T2 - Fortschritte der Akustik - DAGA 2022 TI - Identification of piezoelectric material parameters using optimised multi-electrode specimens ER - TY - CHAP AU - Goller, Michael AU - Hilkenmeier, Frederic ID - 33268 SN - 2210-5549 T2 - Methods for Researching Professional Learning and Development TI - PLS-Based Structural Equation Modelling: An Alternative Approach to Estimating Complex Relationships Between Unobserved Constructs ER - TY - CHAP AU - Goller, Michael AU - Kyndt, Eva AU - Paloniemi, Susanna AU - Damşa, Crina ID - 33266 SN - 2210-5549 T2 - Methods for Researching Professional Learning and Development TI - Addressing Methodological Challenges in Research on Professional Learning and Development ER - TY - CHAP AU - Leidig, Susann AU - Köhler, Hanna AU - Caruso, Carina AU - Goller, Michael ID - 33271 SN - 2210-5549 T2 - Methods for Researching Professional Learning and Development TI - Q Method: Assessing Subjectivity Through Structured Ranking of Items ER - TY - CHAP AU - Steffen, Bianca AU - Pouta, Maikki ID - 33269 SN - 2210-5549 T2 - Methods for Researching Professional Learning and Development TI - Participant’s Video Annotations as a Database to Measure Professional Development ER - TY - CHAP AU - Rausch, Andreas AU - Goller, Michael AU - Steffen, Bianca ID - 33267 SN - 2210-5549 T2 - Methods for Researching Professional Learning and Development TI - Uncovering Informal Workplace Learning by Using Diaries ER - TY - CHAP AU - Harteis, Christian ID - 33270 SN - 2210-5549 T2 - Methods for Researching Professional Learning and Development TI - Delphi-Technique as a Method for Research on Professional Learning ER - TY - JOUR AU - Goller, Michael AU - Steffen, Bianca AU - Lau, D. ID - 32094 IS - 33 JF - Professionalisierung der Gesundheitsberufe. Berufliche und hochschulische Bildung im Spiegel aktueller Forschung TI - Kompetenzerwerb auf der Schulstation: Eine Mixed-Methods-Replikationsstudie ER -