@article{31828,
author = {{Kupfer, Robert and Köhler, Daniel and Römisch, David and Wituschek, Simon and Ewenz, Lars and Kalich, Jan and Weiß, Deborah and Sadeghian, Behdad and Busch, Matthias and Krüger, Jan and Neuser, Moritz and Grydin, Olexandr and Böhnke, Max and Bielak, Christian Roman and Troschitz, Juliane}},
issn = {{2666-3309}},
journal = {{Journal of Advanced Joining Processes}},
keywords = {{Mechanical Engineering, Mechanics of Materials, Engineering (miscellaneous), Chemical Engineering (miscellaneous)}},
publisher = {{Elsevier BV}},
title = {{{Clinching of Aluminum Materials – Methods for the Continuous Characterization of Process, Microstructure and Properties}}},
doi = {{10.1016/j.jajp.2022.100108}},
volume = {{5}},
year = {{2022}},
}
@article{52613,
abstract = {{During resistance spot welding of zinc-coated advanced high-strength steels (AHSSs) for automotive production, liquid metal embrittlement (LME) cracking may occur in the event of a combination of various unfavorable influences. In this study, the interactions of different welding current levels and weld times on the tendency for LME cracking in third-generation AHSSs were investigated. LME manifested itself as high-penetration cracks around the circumference of the spot welds for welding currents closely below the expulsion limit. At the same time, the observed tendency for LME cracking showed no direct correlation with the overall heat input of the investigated welding processes. To identify a reliable indicator of the tendency for LME cracking, the local strain rate at the origin of the observed cracks was analyzed over the course of the welding process via finite element simulation. While the local strain rate showed a good correlation with the process-specific LME cracking tendency, it was difficult to interpret due to its discontinuous course. Therefore, based on the experimental measurement of electrode displacement during welding, electrode indentation velocity was proposed as a descriptive indicator for quantifying cracking tendency.}},
author = {{Böhne, Christoph and Meschut, Gerson and BIEGLER, MAX and RETHMEIER, MICHAEL}},
issn = {{0043-2296}},
journal = {{Welding Journal}},
keywords = {{Metals and Alloys, Mechanical Engineering, Mechanics of Materials}},
number = {{7}},
pages = {{197--207}},
publisher = {{American Welding Society}},
title = {{{The Influence of Electrode Indentation Rate on LME Formation during RSW}}},
doi = {{10.29391/2022.101.015}},
volume = {{101}},
year = {{2022}},
}
@article{52615,
author = {{Böhne, Christoph and Meschut, Gerson}},
journal = {{Welding and Cutting}},
pages = {{208--212}},
title = {{{Reduction of flange widths in resistance spot welding by application of eccentric electrode cap geometries}}},
doi = {{10.53192/WAC202203208 }},
volume = {{3}},
year = {{2022}},
}
@article{34215,
abstract = {{Clinching as a mechanical joining technique allows a fast and reliable joining of metal sheets in large-scale production. An efficient design and dimensioning of clinched joints requires a holistic understanding of the material, the joining process and the resulting properties of the joint. In this paper, the process chain for clinching metal sheets is described and experimental techniques are proposed to analyze the process-microstructure-property relationships from the sheet metal to the joined structure. At the example of clinching aluminum EN AW 6014, characterization methods are applied and discussed for the following characteristics: the mechanical properties of the sheet materials, the tribological behavior in the joining system, the joining process and the resulting material structure, the load-bearing behavior of the joint, the damage and degradation as well as the service life and crack growth behavior. The compilation of the characterization methods gives an overview on the advantages and weaknesses of the methods and the multiple interactions of material, process and properties during clinching. In addition, the results of the analyses on EN AW 6014 can be applied for parameterization and validation of simulations.}},
author = {{Kupfer, Robert and Köhler, Daniel and Römisch, David and Wituschek, Simon and Ewenz, Lars and Kalich, Jan and Weiß, Deborah and Sadeghian, Behdad and Busch, Matthias and Krüger, Jan Tobias and Neuser, Moritz and Grydin, Olexandr and Böhnke, Max and Bielak, Christian Roman and Troschitz, Juliane}},
issn = {{2666-3309}},
journal = {{Journal of Advanced Joining Processes}},
keywords = {{Mechanical Engineering, Mechanics of Materials, Engineering (miscellaneous), Chemical Engineering (miscellaneous)}},
publisher = {{Elsevier BV}},
title = {{{Clinching of Aluminum Materials – Methods for the Continuous Characterization of Process, Microstructure and Properties}}},
doi = {{10.1016/j.jajp.2022.100108}},
volume = {{5}},
year = {{2022}},
}
@inbook{33864,
abstract = {{Im Zentrum Beitrags steht die Frage nach dem Spezifischen einer Didaktik im Wissenschafts- bzw. Hochschulkontext. Dabei hat die Organisation des Wissenschaftssystems in Disziplinen bzw. disziplinäre Gemeinschaften eine besondere Bedeutung. Disziplinen entwickeln spezifische Praktiken, die das Handeln ihrer Angehörigen prägen und sich in Fachkulturen zeigen. Diese Praktiken werden insbesondere an kommunikativen Artefakten sichtbar. Für Personen außerhalb einer disziplinären Gemeinschaft und ganz besonders für jene, die keinen direkten Bezug zum Wissenschaftssystem haben, sind disziplinäre Praktiken häufig schwer zu erschließen. Unsere Konzeption von Wissenschaftsdidaktik lenkt den Blick auf die impliziten Praktiken wissenschaftlicher Disziplinen. Aufgabe von Wissenschaftsdidaktik ist es dem- nach, erstens die impliziten disziplinären Sinnstrukturen, die hinter bestimmten Prak- tiken stehen und in kommunikativen Handlungen und Artefakten verschlüsselt sind, zu entschlüsseln. Zweitens ist es notwendig, die Wahrnehmung disziplinärer Praktiken durch die Studierenden zu analysieren und Differenzen zum Sinnverstehen von Wissenschaftler:innen zu identifizieren. Ausgehend davon kann dann drittens auf eine Verständigung über die Praktiken und deren Sinngehalt hingearbeitet werden. Der Beitrag formuliert die Grundzüge einer Wissenschaftsdidaktik, welche Verständigung über die Praktiken wissenschaftlicher Disziplinen zu einem Kernbestandteil akademischer Lehre macht. Dazu gehört auch ein Moment von Wissenschaftskritik, das auf die Disziplinen und deren Praktiken selbst zurückwirkt. Wissenschaftsdidaktik in diesem Sinne verlangt, den Blick Dritter auf die Praktiken der eigenen Disziplin einzunehmen. Dazu gehör auch, sich einzugestehen, wenn Praktiken keinen Sinn für wissenschaftliche Erkenntnisprozesse (mehr) aufweisen bzw. diesen verloren haben.}},
author = {{Jenert, Tobias and Scharlau, Ingrid}},
booktitle = {{Wissenschaftsdidaktik I: Einführung}},
editor = {{Reinmann, Gabi and Rhein, Rüdiger}},
keywords = {{Wissenschaftsdidaktik, Fachsozialisation, Wissenschaftskritik, Verständigung, Fachkultur, akademische Praktiken, Unterrichtsfach Psychologie}},
pages = {{155 -- 179}},
publisher = {{transcript}},
title = {{{Wissenschaftsdidaktik als Verständigung über wissenschaftliches Handeln – eine Auslegeordnung}}},
doi = {{10.14361/9783839460979-008}},
year = {{2022}},
}
@article{46034,
abstract = {{Die digitale Transformation führt dazu, dass sich lang etablierte Tätigkeiten und Arbeitsabläufe, welche die Berufsbilder im Kern definieren, verändern und stellt damit Mitarbeitende sowie Beteiligte der beruflichen Bildung vor Herausforderungen. Berufliche Lehramtsstudiengänge sind gefordert, Studierenden bereits im hochschulischen Teil ihrer Ausbildung den Aufbau eines berufsförmigen Wissens zu eröffnen, das ihnen die Erkundung beruflicher Handlungsfelder ermöglicht und eine wichtige Grundlage für die Unterrichtsgestaltung an Berufskollegs bildet. Wir geben in diesem Beitrag Einblicke in die Entwicklungsarbeiten einer fachdidaktisch geprägten Einführungsveranstaltung im Studienfach Wirtschaftswissenschaft für das Lehramt an Berufskollegs. Diese zieht Ansätze der Fallstudiendidaktik heran, um für Studierende eine Möglichkeit zu schaffen, die digitale Transformation von Arbeits- und Geschäftsprozessen zu erkunden und diese mit Blick auf die Gestaltung von Wirtschaftsunterricht an Berufskollegs zu analysieren. Dabei stellen wir die Entstehung der Fallstudie sowie deren Einbettung in das Modulkonzept dar und diskutieren das hochschuldidaktische Lehr-/Lernformat.
}},
author = {{Jenert, Tobias and Kremer, H.-Hugo and Sänger, Niklas}},
journal = {{bwp@ Berufs- und Wirtschaftspädagogik}},
title = {{{Digitale Transformation der Berufs- und Arbeitswelt – Einblicke in die fachdidaktische Gestaltung der beruflichen Fachrichtung ‚Wirtschaft und Verwaltung‘}}},
volume = {{43}},
year = {{2022}},
}
@article{31678,
author = {{Jenert, Tobias and Scharlau, Ingrid}},
journal = {{Zeitschrift für Hochschulentwicklung}},
number = {{2}},
title = {{{Wissenschaftskommunikation als Verständigung: Chance für die Hochschulentwicklung?!}}},
volume = {{17}},
year = {{2022}},
}
@article{52708,
author = {{Büker, Ronja and Jenert, Tobias and Fust, Alexander Paul and Fahrbach, Manuel and Bellwald, Noah and Winkler, Christoph}},
journal = {{Erziehung & Unterricht}},
number = {{5-6}},
pages = {{383--393}},
title = {{{Mit dem SREL-Training unternehmerische Selbstkompetenzen entwickeln}}},
year = {{2022}},
}
@inproceedings{52914,
author = {{Dellori, Anna and Wessel, Lena}},
booktitle = {{Proceedings of INDRUM2022 (International Network for Didactic Research in University Mathematics }},
editor = {{Trigueros, M and Barquero, B and Hochmuth, R and Peters, J}},
pages = {{572--573}},
title = {{{Design principles for intertwining local and nonlocal mathematics - The case of relating registers and representations in Abstract Algebra}}},
year = {{2022}},
}
@inproceedings{52919,
author = {{Dellori, Anna and Wessel, Lena}},
booktitle = {{ Proceedings of the 24th Annual Conference on Research in Undergraduate Mathematics Education}},
editor = {{Karunakaran, S S and Higgins, A}},
pages = {{1177}},
title = {{{Pre-service Teachers' Professional Development: Relating Abstract Algebra and School Algebra}}},
year = {{2022}},
}
@article{53080,
abstract = {{Quantitative speciation data for alternative fuels is highly desired to assess their emission potential and to develop and validate chemical kinetic models. In terms of substitute choices for fossil diesel are oxymethylene ethers (OMEs) strongly discussed. Due to the absence of carbon-carbon bonds, soot emis-sions from combustion of OMEs are low, but significant emissions of unregulated pollutants such as alde-hydes emerge. The combustion behavior of OME fuels with different chain lengths, OME0-4, was investigated in lam-inar premixed low-pressure flames using complementary molecular-beam mass spectrometry (MBMS) techniques. MBMS sampling provides an in-situ access directly into the reaction zone of the flame. Al-most all chemical species involved in the oxidation process can be detected and quantified simultane-ously. Neat OME0-3 flames were analyzed by electron ionization (EI) MBMS with high mass resolution ( R approximate to 3900) providing exact elementary composition. To obtain isomer-specific information, an OME1- doped hydrogen flame and a stochiometric OME4 flame were studied by double-imaging photoelectron photoion coincidence (i2PEPICO) spectroscopy. Both, EI-MBMS detection and i2PEPICO spectroscopy, en-ables a complete overview of all intermediates. The results show a dominance of oxygenated intermediates for all measured conditions. Mole fraction profiles for the most important species are presented (i.e. formaldehyde, methanol, methyl formate and formic acid) and compared to modeling results. Hydrocarbons with more than four carbon atoms were not detected under the investigated conditions. Isomers such as ethanol/dimethyl ether (m/z = 46) and ethenol/acetaldehyde (m/z = 44) could be separated using threshold photoelectron spectra for clear iden-tification and photoionization efficiency curves for quantification. This investigation permits the discus-sion and analysis of systematic trends, including intermediate species, for the combustion of the studied series of oxymethylene ether fuels. (c) 2022 The Combustion Institute. Published by Elsevier Inc. All rights reserved.}},
author = {{Gaiser, Nina and Zhang, Hao and Bierkandt, Thomas and Schmitt, Steffen and Zinsmeister, Julia and Kathrotia, Trupti and Hemberger, Patrick and Shaqiri, Shkelqim and Kasper, Tina and Aigner, Manfred and Oßwald, Patrick and Köhler, Markus}},
issn = {{0010-2180}},
journal = {{Combustion and Flame}},
keywords = {{General Physics and Astronomy, Energy Engineering and Power Technology, Fuel Technology, General Chemical Engineering, General Chemistry}},
publisher = {{Elsevier BV}},
title = {{{Investigation of the combustion chemistry in laminar, low-pressure oxymethylene ether flames (OME0–4)}}},
doi = {{10.1016/j.combustflame.2022.112060}},
volume = {{243}},
year = {{2022}},
}
@article{53081,
abstract = {{Recent progress in molecular combustion chemistry allows for detailed investigation of the intermediate species pool even for complex chemical fuel compositions, as occur for technical fuels. This study pro-vides detailed investigation of a comprehensive set of complex alternative gasoline fuels obtained from laminar flow reactors equipped with molecular-beam sampling techniques for observation of the com-bustion intermediate species pool in homogeneous gas phase reactions. The combination of ionization techniques including double-imaging photoelectron photoion coincidence (i2PEPICO) spectroscopy enables deeper mechanistic insights into the underlying reaction network relevant to technical fuels. The se-lected fuels focus on contemporary automotive engine application as drop-in fuels compliant to European EN 228 specification for gasoline. Therefore, potential alternative gasoline blends containing oxygenated hydrocarbons as octane improvers obtainable from bio-technological production routes, e.g., ethanol, iso- butanol, methyl tert -butyl ether (MTBE), and ethyl tert -butyl ether (ETBE), as well as a Fischer-Tropsch surrogate were investigated. The fuel set is completed by two synthetic naphtha fractions obtained from Fischer-Tropsch and methanol-to-gasoline processes alongside with a fossil reference gasoline. In total, speciation data for 11 technical fuels from two atmospheric flow reactor setups are presented. Detailed main and intermediate species profiles are provided for slightly rich ( 4) = 1.2) and lean ( 4) = 0.8) con-ditions for intermediate to high temperatures. Complementary, the isomer distribution on different mass channels, like m/z = 78 u fulvene/benzene, of four gasolines was investigated. Experimental findings are analyzed in terms of the detailed fuel composition and literature findings for molecular combustion chemistry. Influences of oxygenated fuel components as well as composition of the hydrocarbon frac-tions are examined with a particular focus on the soot precursor chemistry. This dataset is available for validation of chemical kinetic mechanisms for realistic gasolines containing oxygenated hydrocarbons.(c) 2021 The Combustion Institute. Published by Elsevier Inc. All rights reserved.}},
author = {{Zinsmeister, Julia and Gaiser, Nina and Melder, Jens and Bierkandt, Thomas and Hemberger, Patrick and Kasper, Tina and Aigner, Manfred and Köhler, Markus and Oßwald, Patrick}},
issn = {{0010-2180}},
journal = {{Combustion and Flame}},
keywords = {{General Physics and Astronomy, Energy Engineering and Power Technology, Fuel Technology, General Chemical Engineering, General Chemistry}},
publisher = {{Elsevier BV}},
title = {{{On the diversity of fossil and alternative gasoline combustion chemistry: A comparative flow reactor study}}},
doi = {{10.1016/j.combustflame.2021.111961}},
volume = {{243}},
year = {{2022}},
}
@article{47552,
author = {{Herrmann, Felix and Grünewald, Marcus and Riese, Julia}},
issn = {{0360-3199}},
journal = {{International Journal of Hydrogen Energy}},
keywords = {{Energy Engineering and Power Technology, Condensed Matter Physics, Fuel Technology, Renewable Energy, Sustainability and the Environment}},
number = {{25}},
pages = {{9377--9389}},
publisher = {{Elsevier BV}},
title = {{{Model-based design of a segmented reactor for the flexible operation of the methanation of CO2}}},
doi = {{10.1016/j.ijhydene.2022.12.122}},
volume = {{48}},
year = {{2022}},
}
@article{47554,
author = {{Lilli, Lilli and Röder, Lilli and Gröngröft, Arne and Grünewald, Marcus and Riese, Julia}},
journal = {{Energy Proceedings}},
publisher = {{Applied Energy Innovation Institute (AEii)}},
title = {{{Demand Side Management in Biogas Plants - Dynamic Simulation of the Influence of Time-varying Agitation on Biogas Production}}},
year = {{2022}},
}
@article{44689,
abstract = {{AbstractEven in the digital age, learning mathematics at an academic level still requires much reading of mathematical text. Research has shown that reading mathematical text requires readers to engage with all the structures of the book and with its pedagogical voice, making connections, and plausible reasoning. Specific practices and strategies that support the close reading of mathematical text have been suggested; however, descriptions and empirical evaluations of materials designed to support these activities are rare. We present the design and first evaluation cycle of materials developed in a design research project that aims to scaffold close reading of mathematical text. The materials were designed and evaluated in a German university course on elementary geometry for first-year teacher education students who study mathematics to become primary teachers. The reading strategies were explained and modeled for students in reading-strategy videos. Additionally, close reading of mathematical text was scaffolded by close-reading tasks and homework tasks and problems that build on the reading strategies and were specifically designed to foster understanding of the mathematical text. Survey data were collected from 296 students to evaluate their use of and attitude toward the different materials. The quantitative results indicate that students used the materials and were generally able to learn the course content by themselves. From all provided materials, they found the close-reading tasks most helpful. A qualitative analysis of answers to open questions revealed issues with different materials, particularly with the script, and requests for additional materials. The issues with the script were categorized inductively. The categories are presented as a qualitative result of the study and discussed.}},
author = {{Rezat, Sebastian and Malik, Sara Naseem and Leifeld, Markus}},
issn = {{1571-0068}},
journal = {{International Journal of Science and Mathematics Education}},
keywords = {{General Mathematics, Education}},
number = {{S1}},
pages = {{215--236}},
publisher = {{Springer}},
title = {{{Scaffolding Close Reading of Mathematical Text in Pre-service Primary Teacher Education at the Tertiary Level: Design and Evaluation}}},
doi = {{10.1007/s10763-022-10309-y}},
volume = {{20}},
year = {{2022}},
}
@inproceedings{48389,
author = {{Dröse, Jennifer and Griese, Birgit and Wessel, Lena}},
booktitle = {{Twelfth Congress of the European Society for Research in Mathematics Education (CERME12)}},
location = {{Bozen-Bolzano,Italy}},
title = {{{Prospective teachers’ diagnostic judgments on students’ understanding of conditional probabilities}}},
year = {{2022}},
}
@article{35741,
abstract = {{AbstractBusiness process management (BPM) drives corporate success through effective and efficient processes. In recent decades, knowledge has been accumulated regarding the identification, discovery, analysis, design, implementation, and monitoring of business processes. This includes methods and tools for tackling various kinds of process change such as continuous process improvement, process reengineering, process innovation, and process drift. However, exogenous shocks, which lead to unintentional and radical process change, have been neglected in BPM research although they severely affect an organization’s context, strategy, and business processes. This research note conceptualizes the interplay of exogenous shocks and BPM in terms of the effects that such shocks can have on organizations’ overall process performance over time. On this foundation, related challenges and opportunities for BPM via several rounds of idea generation and consolidation within a diverse team of BPM scholars are identified. The paper discusses findings in light of extant literature from BPM and related disciplines, as well as present avenues for future (BPM) research to invigorate the academic discourse on the topic.}},
author = {{Röglinger, Maximilian and Plattfaut, Ralf and Borghoff, Vincent and Kerpedzhiev, Georgi and Becker, Jörg and Beverungen, Daniel and vom Brocke, Jan and Van Looy, Amy and del-Río-Ortega, Adela and Rinderle-Ma, Stefanie and Rosemann, Michael and Santoro, Flavia Maria and Trkman, Peter}},
issn = {{2363-7005}},
journal = {{Business & Information Systems Engineering}},
keywords = {{Information Systems, Business process management, Exogenous shocks, Challenges, Opportunities}},
number = {{5}},
pages = {{669--687}},
publisher = {{Springer Science and Business Media LLC}},
title = {{{Exogenous Shocks and Business Process Management}}},
doi = {{10.1007/s12599-021-00740-w}},
volume = {{64}},
year = {{2022}},
}
@article{35728,
abstract = {{Technological developments such as Cloud Computing, the Internet of Things, Big Data and Artificial Intelligence continue to drive the digital transformation of business and society. With the advent of platform-based ecosystems and their potential to address complex challenges, there is a trend towards greater interconnectedness between different stakeholders to co-create services based on the provision and use of data. While previous research on digital transformation mainly focused on digital transformation within organizations, it is of growing importance to understand the implications for digital transformation on different layers (e.g., interorganizational cooperation and platform ecosystems). In particular, the conceptualization and implications of public data spaces and related ecosystems provide promising research opportunities. This special issue contains five papers on the topic of digital transformation and, with the editorial, further contributes by providing an initial conceptualization of public data spaces' potential to foster innovative progress and digital transformation from a management perspective.}},
author = {{Beverungen, Daniel and Hess, Thomas and Köster, Antonia and Lehrer, Christiane}},
issn = {{1019-6781}},
journal = {{Electronic Markets}},
keywords = {{Digital transformation, Public data spaces, Digital platforms, GAIA-X}},
pages = {{493--501}},
publisher = {{Springer Science and Business Media LLC}},
title = {{{From private digital platforms to public data spaces: implications for the digital transformation}}},
doi = {{10.1007/s12525-022-00553-z}},
volume = {{32}},
year = {{2022}},
}
@article{35732,
abstract = {{While the Information Systems (IS) discipline has researched digital platforms extensively, the body of knowledge appertaining to platforms still appears fragmented and lacking conceptual consistency. Based on automated text mining and unsupervised machine learning, we collect, analyze, and interpret the IS discipline’s comprehensive research on platforms—comprising 11,049 papers spanning 44 years of research activity. From a cluster analysis concerning platform concepts’ semantically most similar words, we identify six research streams on platforms, each with their own platform terms. Based on interpreting the identified concepts vis-à-vis the extant research and considering a temporal perspective on the concepts’ application, we present a lexicon of platform concepts, to guide further research on platforms in the IS discipline. Researchers and managers can build on our results to position their work appropriately, applying a specific theoretical perspective on platforms in isolation or combining multiple perspectives to study platform phenomena at a more abstract level.}},
author = {{Bartelheimer, Christian and zur Heiden, Philipp and Lüttenberg, Hedda and Beverungen, Daniel}},
issn = {{1019-6781}},
journal = {{Electronic Markets}},
keywords = {{Platform, Text mining, Machine learning, Data communications, Interpretive research, Systems design and implementation}},
pages = {{375--396}},
publisher = {{Springer Science and Business Media LLC}},
title = {{{Systematizing the lexicon of platforms in information systems: a data-driven study}}},
doi = {{10.1007/s12525-022-00530-6}},
volume = {{32}},
year = {{2022}},
}
@book{37244,
abstract = {{Transformations of various kinds have always shaped societies and especially its cultures and research – triggered, for example, by wars, revolutions, shifts in social orders, pandemics, etc. They have led to uncertainty and social upheaval, but also to innovation and change. As pop music cultures, in their entire breadth, can be described as seismographs of social, political, economic, ecological, media, artistic, and technological transformations, in and through them, fields of tensions, disruptions, and lines of conflict become not only visible, audible, and perceptible, but also communicable and thus, negotiable. Volume No. 2 of ~Vibes – The IASPM D-A-CH Series, which is based on the 4th Biennial IASPM D-A-CH conference at Paderborn University/online, takes a closer look at the transformative moments of pop music cultures by theorizing, empiricizing, historicizing, and, finally, politicizing them.}},
editor = {{Flath, Beate and Jacke, Christoph and Troike, Manuel}},
issn = {{2748-6389}},
pages = {{307}},
publisher = {{International Association for the Study of Popular Music Deutschland-Austria-Confoederation Helvetica}},
title = {{{Transformational POP: Transitions, Breaks, and Crises in Popular Music (Studies)}}},
volume = {{2}},
year = {{2022}},
}