@article{63222,
abstract = {{The solid electrolyte interphase (SEI) on the anode of lithium-ion batteries (LIBs) has been studied thoroughly due to its crucial importance to the battery’s long-term performance. At the same time, most studies of the SEI apply ex situ characterization methods, which may introduce artifacts or misinterpretations as they do not investigate the SEI in its unaltered state immersed in liquid battery electrolyte. Thus, in this work, we focus on using the non-destructive combination of electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D) and impedance spectroscopy (EIS) in the same electrochemical cell. EQCM-D can not only probe the solidified products of the SEI but also allows for the monitoring of viscoelastic layers and viscosity changes of the electrolyte at the interphase during the SEI formation. EIS complements those results by providing electrochemical properties of the formed interphase. Our results highlight substantial differences in the physical and electrochemical properties between the SEI formed on copper and on amorphous carbon and show how formation parameters and the additive vinylene carbonate (VC) influence their growth. The EQCM-D results show consistently that much thicker SEIs are formed on carbon substrates in comparison to copper substrates.}},
author = {{Stich, Michael and Leppin, Christian and Krauss, Falk Thorsten and Valdes Landa, Jesus Eduardo and Pantenburg, Isabel and Roling, Bernhard and Bund, Andreas}},
issn = {{2313-0105}},
journal = {{Batteries}},
number = {{7}},
publisher = {{MDPI AG}},
title = {{{Comparing the SEI Formation on Copper and Amorphous Carbon: A Study with Combined Operando Methods}}},
doi = {{10.3390/batteries11070273}},
volume = {{11}},
year = {{2025}},
}
@article{62906,
abstract = {{Ausgangspunkt des Beitrags sind die wiederkehrenden Zuschauerproteste gegen die Kommerzialisierung des Fußballs und die Frage nach einer Erklärung für deren Entstehung. Gezeigt wird, dass Zuschauerproteste bereits umfassend beforscht sind, bislang allerdings keine theoretische Einordung zu ihrer Entwicklung vorgelegt wurde. Entsprechend liegt das Ziel des Beitrags darin, unter Rückgriff auf systemtheoretische Überlegungen, insbesondere auch zur Funktion des Publikums für den Fußball, und typologische Unterscheidungen, angereichert durch kulturanthropologische Betrachtungen, theoretische Erklärungen für die Ursprünge und Bedeutung von Zuschauerprotesten zu liefern. Im Anschluss hieran wird betrachtet, wie sich Zuschauerproteste in theoretische Konzepte zu Protestbewegungen einordnen lassen, um abschließend deren Nutzen für die Fußballclubs und -verbände zu bestimmen.}},
author = {{Riedl, Lars and Meier, Heiko}},
issn = {{2568-0420}},
journal = {{FuG – Zeitschrift für Fußball und Gesellschaft}},
number = {{2-2023}},
pages = {{97 -- 119}},
publisher = {{Verlag Barbara Budrich GmbH}},
title = {{{Protest gegen Kommerzialisierung im Fußball: Theoretische Überlegungen zu Entstehung, Strukturen und Nutzen}}},
doi = {{10.3224/fug.v5i2.02}},
volume = {{5}},
year = {{2025}},
}
@article{63347,
abstract = {{Friction-spinning is an incremental thermomechanical forming process that has huge potential due to its simple yet effective mechanism of utilising friction between a rotating workpiece and a forming tool to increase the workpiece’s temperature, which reduces the required forces and increases formability during the forming process. Despite the simplicity of the process’s setup, the thermomechanical loads and high relative velocities involved, especially in the contact zone, make the application of classical methods for characterising friction inaccurate. It is therefore essential to find a way to describe the frictional behaviour under real process conditions to be able to gain a holistic understanding of the process and the effect of the adjustable parameters on the outcome, especially the temperature. To achieve this goal, an experimental setup that considers the actual process boundary conditions in forming tubes made of EN AW-6060 was used to measure in situ normal and frictional forces, in addition to process temperatures, under varying rotational speed and feed rate values.}},
author = {{Wiens, Eugen and Hijazi, Dina and Jüttner, Maik and Homberg, Werner and Kensy, Mark Dennis and Tillmann, Wolfgang}},
issn = {{2504-4494}},
journal = {{Journal of Manufacturing and Materials Processing}},
number = {{9}},
publisher = {{MDPI AG}},
title = {{{In Situ Investigation of the Frictional Behaviour in Friction-Spinning}}},
doi = {{10.3390/jmmp9090302}},
volume = {{9}},
year = {{2025}},
}
@inproceedings{59091,
abstract = {{Abstract. Liquid Metal Embrittlement (LME) cracking is a well-documented issue encountered during resistance spot welding (RSW) of zinc-coated advanced high-strength steels (AHSS) in automotive manufacturing. Given that existing research has predominantly focused on laboratory-scale samples and lacks investigation into the load-bearing capacity of joints under crash conditions, this study aims to fill these gaps by analyzing third-generation zinc-coated AHSS. S-Rail components were produced through stamping to replicate real-world manufacturing conditions and geometries of automotive parts. To account for the disturbances typically encountered in production, samples with LME cracks were intentionally fabricated. Subsequently, a modified three-point bending test, assisted by numerical simulations, was developed to effectively apply loads to the weld spots of the S-Rail components. Results from crash tests demonstrated that observed light crack severity does not significantly compromise the joint's load-bearing capacity or lead to earlier joint failure.}},
author = {{Yang, Keke and Biegler, Max and Happe, Linus and Striewe, Marius and Olfert, Viktoria and Hein, David and Rethmeier, Michael and Meschut, Gerson}},
booktitle = {{Materials Research Proceedings}},
issn = {{2474-395X}},
publisher = {{Materials Research Forum LLC}},
title = {{{Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components}}},
doi = {{10.21741/9781644903551-42}},
volume = {{52}},
year = {{2025}},
}
@inproceedings{60604,
abstract = {{Abstract. In the field of online condition monitoring, non-destructive testing methods using active acoustic testing [1] emerged as innovative tools. These techniques are particularly effective because damage in joined structures leads to significant changes in their vibrational characteristics. However, the consistent use of online condition monitoring through active acoustic testing combined with complex pattern recognition for early crack detection in joined components has not yet been fully established. This research aims to develop an online crack detection system employing pattern recognition techniques under cyclic loading during fatigue tests, utilizing non-contact active acoustic testing with laser vibrometry. Due to the wide range of materials that can be joined, mechanical joining processes can be used in many different industry branches. Self-pierce riveting (SPR), in particular, is a well-established joining process. Therefore, the investigations for online crack detection initially focus on SPR joints. To achieve this, the fatigue behavior of SPR joints in a lap-shear configuration was characterized. Experimental fatigue testing demonstrated that SPR joint failure occurs either through cracks propagating in the sheet material away from the rivet or in the rivet foot, depending on the material combination. Laser vibrometry has been successfully used as a crack detection system and has proven to be effective in detecting crack initiation in SPR joints. Cracks can be detected without contact regardless of the material combination, the damage location, the size of the damage, or the type of damage. The optimization of the crack detection system involved several key enhancements, including adjusting data acquisition to improve crack detection, incorporating principal component analysis (PCA) to reduce dimensionality, and implementing a classification model based on a global training dataset. An intuitive, problem-specific software demonstrator for analyzing the crack initiation behavior of SPR joints under cyclic loading was developed and iteratively optimized. Future work will focus on the implementation of an autoencoder network to further enhance crack detection capabilities.}},
author = {{Olfert, Viktoria and Yang, Keke and Gollnick, Maik and Krause, Jacob and Hein, David and Meschut, Gerson}},
booktitle = {{Materials Research Proceedings}},
issn = {{2474-395X}},
publisher = {{Materials Research Forum LLC}},
title = {{{Analysis of fatigue behaviour of self-piercing riveted joints under cyclic loading using laser vibrometry}}},
doi = {{10.21741/9781644903599-154}},
volume = {{54}},
year = {{2025}},
}
@article{58623,
abstract = {{Serial storytelling, characterized by its interplay of vertical (episodic) and horizontal (long-form) narrative structures, offers a unique opportunity for media literacy in English as a Foreign Language (EFL) education. This paper argues for the development of a serial literacy framework, a concept that expands traditional film literacy models to accommodate the distinct demands of serialized narratives. By using Inventing Anna (Rhimes, 2022) as a case study, the study explores how serial storytelling fosters engagement with themes of identity construction, ethical ambiguity, and transmedial storytelling. This paper elaborates on serial literacy, considering its implications within foreign language learning contexts. The study highlights how serialized narratives cultivate critical thinking, communicative competence, and media awareness, which renders them a valuable pedagogical tool. By integrating serial literacy into EFL curricula, educators can bridge students’ media consumption habits with analytical engagement and thus foster a generation of critically literate media consumers and producers.
This paper elaborates on serial literacy, considering its implications within foreign language learning contexts. The study highlights how serialized narratives cultivate critical thinking, communicative competence, and media awareness, which renders them a valuable pedagogical tool. By integrating serial literacy into EFL curricula, educators can bridge students' media consumption habits with analytical engagement and thus foster a generation of critically literate media consumers and producers.
}},
author = {{Intveen, Julie and Illigens, Tim}},
journal = {{Journal of Media Literacy Education}},
number = {{3}},
pages = {{17--30}},
publisher = {{The University of Rhode Island}},
title = {{{Beyond The Episode: A Case For Serial Literacy in EFL Education}}},
doi = {{https://doi.org/10.23860/JMLE-2025-17-3-3}},
volume = {{17}},
year = {{2025}},
}
@inproceedings{63434,
author = {{Hoffmann, Max}},
booktitle = {{Proceedings of the Fourteenth Congress of the European Society for Research in Mathematics Education (CERME14)}},
editor = {{Bosch, Marianna and Bolondi, Giorgio and Carreira, Susana and Michael, Gaidoschik and Camilla, Spagnolo}},
keywords = {{hoffmann, reviewed, proceedings}},
title = {{{Using scriptwriting as a response format for interface tasks: Exemplary analyses in the context of symmetry}}},
year = {{2025}},
}
@article{63455,
author = {{Arndt, Theresa and Schöppner, Volker}},
journal = {{Joining Plastics}},
keywords = {{Schweißen, Ultraschall, weld seam quality}},
number = {{3-4}},
pages = {{166–174}},
title = {{{Ambossfreies Ultraschallschweißen für nur einseitig zugängliche Schweißsituationen}}},
volume = {{19}},
year = {{2025}},
}
@inproceedings{63443,
author = {{Moritzer, Elmar and Lingnau, Kai}},
booktitle = {{Annual Technical Conference of the Society of Plastics Engineers (ANTEC 2025)}},
keywords = {{Lackierung, Pulverlack, Spritzgießen}},
title = {{{PROCESS DEVELOPMENT OF A POWDER-BASED DIRECT COATING IN THE INJECTION MOLDING PROCESS}}},
year = {{2025}},
}
@article{58116,
author = {{Mohammadian, Noushin and Fatahi Valilai, Omid and Schlüter, Alexander}},
issn = {{2199-8531}},
journal = {{Journal of Open Innovation: Technology, Market, and Complexity}},
number = {{1}},
publisher = {{Elsevier BV}},
title = {{{Sustainable design and repair: Leveraging circular economy and machine learning for product development}}},
doi = {{10.1016/j.joitmc.2025.100469}},
volume = {{11}},
year = {{2025}},
}
@article{59056,
author = {{Seeger, Karl and Genovese, Matteo and Schlüter, Alexander and Kockel, Christina and Corigliano, Orlando and Díaz Canales, Edith Benjamina and Praktiknjo, Aaron and Fragiacomo, Petronilla}},
issn = {{0360-3199}},
journal = {{International Journal of Hydrogen Energy}},
pages = {{558--576}},
publisher = {{Elsevier BV}},
title = {{{Techno-economic analysis of hydrogen and green fuels supply scenarios assessing three import routes: Canada, Chile, and Algeria to Germany}}},
doi = {{10.1016/j.ijhydene.2025.02.379}},
volume = {{116}},
year = {{2025}},
}
@article{60837,
abstract = {{In light of growing demands for resource efficiency and sustainability in vehicle engineering, the environmentally compatible separation of structural adhesive joints is gaining increasing relevance. This study presents a comparative analysis of two physically based debonding methods: the established hot-air process and a cryogenic cold process based on liquid nitrogen (LN2). The primary objective is to assess the ecological impact and process-related sustainability of both approaches.
Experimental investigations were conducted on a component-representative triple-sheet structure that simulates common automotive flange joints. Thermal input was applied either by convective heating using a hot air gun or by direct cooling through a contact-based LN2 tool. The resulting temperature profiles were recorded using spatially distributed thermocouples. Subsequently, the outer panel was selectively debonded to replicate a repair scenario, and the mechanical integrity of the remaining adhesive joint was evaluated through Mode I testing of L-shaped specimens. Process data served as input for an Life Cycle Assessment (LCA) according to DIN EN ISO 14040.
The cryogenic method achieved a 40% reduction in carbon footprint compared to the hot-air process (0.337 kg vs. 0.559 kg CO2-equivalents), primarily due to its shorter process time and more efficient heat transfer. While the hot-air method’s impact is mainly driven by electrical energy use, that of the cold method stems from cryogenic media consumption. Notwithstanding certain disadvantages in specific impact categories, the LN2-based process exhibits a superior overall ecological performance and signifies a promising solution for repair- and recycling-oriented adhesive separation in structural vehicle applications.}},
author = {{Jordan, Alex and Hermelingmeier, Lucas and Gilich, Julian and Meschut, Gerson and De Santis, Marco Sebastian and Schlüter, Alexander}},
issn = {{2666-3309}},
journal = {{Journal of Advanced Joining Processes}},
keywords = {{Sustainable debonding, Structural adhesives, Sustainable joining technologies, Life Cycle Assessment (LCA), Automotive repair process, Economically efficient debonding}},
publisher = {{Elsevier}},
title = {{{Comparison of the economic efficiency and sustainability of two debonding processes for structurally bonded sills}}},
doi = {{10.1016/j.jajp.2025.100332}},
volume = {{12}},
year = {{2025}},
}
@article{60681,
author = {{Díaz Canales, Edith Benjamina and Avila Galarza, Alfredo and Schlüter, Sabine and Lacayo Escobar, Erick and Schlüter, Alexander}},
issn = {{3044-5221}},
journal = {{Journal of Sustainable Development Indicators}},
number = {{2}},
pages = {{1--26}},
publisher = {{SDEWES Centre}},
title = {{{Implementing Strategic Environmental Assessment in the Global South, a Challenge: Nicaragua as a Case Study}}},
doi = {{10.13044/j.sdi.d2.0592}},
volume = {{1}},
year = {{2025}},
}
@article{62713,
abstract = {{Periodically poled thin-film lithium niobate (TFLN) crystals are the fundamental building block for highly-efficient quantum light sources and frequency converters. The efficiency of these devices is strongly dependent on the interaction length between the light and the nonlinear material, scaling quadratically with this parameter. Nevertheless, the fabrication of long, continuously poled areas in TFLN remains challenging, the length of continuously poled areas rarely exceeds 10 mm. In this work, we demonstrate a significant progress in this field achieving the periodic poling of continuous poled areas of 70 mm length with a 3 μm poling period and a close to 50 % duty cycle. We compare two poling electrode design approaches to fabricate long, continuous poled areas. The first approach involves the poling of a single, continuous 70 mm long electrode. The second utilize a segmented approach including the poling of more than 20 individual sections forming together a 70 mm long poling area with no stitching errors. While the continuous electrode allows for faster fabrication, the segmented approach allows to individually optimize the poling resulting in less duty cycle variation. A detailed analysis of the periodic poling results reveals that the results of both are consistent with previously reported poling outcomes for shorter devices. Thus, we demonstrate wafer-scale periodic poling exceeding chiplet-size without any loss in the periodic poling quality. Our work presents a key step towards highly-efficient, narrow-bandwidth and low-pump power nonlinear optical devices.}},
author = {{Bollmers, Laura and Spiegelberg, Noah and Rüsing, Michael and Eigner, Christof and Padberg, Laura and Silberhorn, Christine}},
issn = {{2192-8606}},
journal = {{Nanophotonics}},
pages = {{4761}},
publisher = {{Walter de Gruyter GmbH}},
title = {{{Segmented finger electrodes to optimize ultra-long continuous wafer-scale periodic poling in thin-film lithium niobate}}},
doi = {{10.1515/nanoph-2025-0461}},
volume = {{14}},
year = {{2025}},
}
@article{65011,
abstract = {{Abstract
Design of single screw machines for polymer processing often focuses on the melt dominated areas of the screw. However, solids conveying is a key aspect for processes with high screw speeds, grooved feed sections, small screw diameters and material with low bulk density. In injection moulding, throughput limitations are highly relevant in packaging applications as due to low cooling times, plasticizing affects the cycle time. In addition, insufficient solids conveying is a primary cause for air residues in the melt and final product. Therefore, well-designed feed sections are required, especially as direct processing of regrind in recycling applications becomes more relevant due to governmental restrictions. Existing models for injection moulding are based on analytical equations and do not allow to assess new feed sections and feed opening designs, adapted to high screw speeds or regrind. In this paper, numerical simulations based on the Discrete Element Method (DEM), previously used in the field of extrusion, are carried out. In order to replicate the cyclic, superimposed rotation and translation of the screw, a coupled approach of DEM and Multibody Systems Simulation (MBS) is pursued. To verify the accuracy of such coupled simulations, a special test setup is added to a conventional injection moulding machine. Pure solids conveying is investigated, as DEM does not accommodate for large plastic deformations or melting. Different screw and intake designs as well as smooth and grooved barrels are investigated. Selected resins, pellet shapes and regrind are processed, varying the processing parameters and comparing the results to the simulation. The coupled approach replicates reality well in terms of throughput, confirming that DEM can be utilised to further investigate process phenomena and develop calculation models for solids conveying in injection moulding.}},
author = {{Landgräber, Jan and Schöppner, Volker and Brüning, Florian}},
issn = {{0930-777X}},
journal = {{International Polymer Processing}},
number = {{1}},
pages = {{1--14}},
publisher = {{Walter de Gruyter GmbH}},
title = {{{Assessing solids conveying in injection moulding machines using coupled numerical simulations based on the discrete element method (DEM) and multibody systems (MBS)}}},
doi = {{10.1515/ipp-2025-0065}},
volume = {{41}},
year = {{2025}},
}
@article{65012,
author = {{Landgräber, Jan and Brüning, Florian}},
issn = {{0921-8831}},
journal = {{Advanced Powder Technology}},
number = {{8}},
publisher = {{Elsevier BV}},
title = {{{Discrete element method in polymer processing – Method for development of material models}}},
doi = {{10.1016/j.apt.2025.104968}},
volume = {{36}},
year = {{2025}},
}
@article{61823,
author = {{Jacke, Christoph}},
journal = {{POP. Kultur & Kritik}},
keywords = {{Stars, Sarah Connor, Rollen, Qualitätsjournalismus, Boulevard, Fans}},
number = {{27}},
pages = {{96--101}},
publisher = {{Transcript}},
title = {{{Die drei Rollen der Star-Figur. Sarah Connors Abrechnung.}}},
year = {{2025}},
}
@inproceedings{65038,
abstract = {{The rapid advancements in digital transformation have led to the emergence of dataspaces as a pivotal element for industry-wide and cross-industry data integration and interoperability across various businesses. Despite their potential, the adoption and effective utilization of dataspaces by business stakeholders remain challenging. This paper aims to address this gap by developing a comprehensive learning environment tailored for business stakeholders. Through an interview study and an analysis of the current state of research, we identify problem fields and derive key requirements for the development of the learning environment. The proposed environment includes a demonstrator and a training concept designed to enhance stakeholders' understanding and capabilities in managing and leveraging dataspaces. Our findings contribute to the body of knowledge by providing practical guidance through learning environments for the deployment of dataspaces in business contexts and highlighting areas for future research.}},
author = {{Lick, Jonas and Lamarz, Jessica and Dohmann, Friederike and Kulkarni, Pranav Jayant and Zerbin, Julian and Koldewey, Christian}},
booktitle = {{2024 6th International Conference on Control and Robotics (ICCR)}},
location = {{Yokohama, Japan }},
publisher = {{IEEE}},
title = {{{Guidance on Dataspaces: Development of a Learning Environment for Industrial SMEs}}},
doi = {{10.1109/iccr64365.2024.10927580}},
year = {{2025}},
}
@inbook{64983,
author = {{Löhr, Florian and Moritzer, Elmar and Klie, Benjamin and Giese, Ulrich}},
booktitle = {{International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book}},
keywords = {{BMC, Duroplast, Kautschuk, Mehrkomponenten, Spritzgießen}},
pages = {{227–228}},
title = {{{Thermoset–Rubber 2K Composite Systems: Material Combinations and Interfacial Reactions in a One-Step Injection Molding Process}}},
year = {{2025}},
}
@article{65007,
author = {{Knaup, Felix and Schöppner, Volker}},
journal = {{International Polymer Processing}},
keywords = {{CFD simulation, melting modeling, melting process, polymer extrusion, single-screw extruder}},
title = {{{Improvement of a numerical two-phase simulation model for single-screw plasticizing extruders based on experimental investigations}}},
doi = {{10.1515/ipp-2025-0072}},
year = {{2025}},
}