@inproceedings{30840,
  author       = {{Alshomary, Milad and El Baff, Roxanne and Gurcke, Timon and Wachsmuth, Henning}},
  booktitle    = {{Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics}},
  pages        = {{8782 -- 8797}},
  title        = {{{The Moral Debater: A Study on the Computational Generation of Morally Framed Arguments}}},
  year         = {{2022}},
}

@inproceedings{50744,
  abstract     = {{The manufacturing industry contributes immensely to the global emissions and therefore is
a key factor that has to be addressed when a more sustainable production is desired. Laser Powder
Bed Fusion (LPBF) is an AM technique that offers the possibility to manufacture metal parts in a
more material efficient way due to the layer-by-layer build-up. Nevertheless, the processing chain
for parts from LPBF contains additional steps like powder atomization, which also influence the
ecological footprint of the production chain. Within this work, a life-cycle model for the production
step of parts from AlSi10Mg powder material is developed. The model is supplied with data from
the powder atomization up to the production step, either by literature, database or experimental
measurements during production. The footprint in terms of CO2 emissions is then analyzed and
emission-intense steps are identified. Two manufacturing scenarios are considered to evaluate the
sensitivity on the emissions.}},
  author       = {{Bödger, Christian and Weiss, Christian and Schiefer, Ekkehard and Heussen, Daniel and Haefner, Constantin}},
  booktitle    = {{Proceedings of the 33rd Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference}},
  location     = {{Austin}},
  title        = {{{Evaluation of the Ecological Footprint for Parts from AlSi10Mg manufactured by Laser Powder Bed Fusion}}},
  year         = {{2022}},
}

@article{34257,
  abstract     = {{Galvanic corrosion is a destructive process between dissimilar metals. The present paper presents a constructed numerical test case to simulate galvanic corrosion of two dissimilar metals. This test case is used to study the accuracy of different implementations to track the dissolving anode boundary. One technique is to numerically simulate a mesh displacement based on the prescribed displacement at the anode boundary. The second method is to adjust only the boundary elements. Re-meshing after a certain number of time steps is applied to both implementations. They produce similar results for an electrical and electrochemical field problem. This work shows that mesh smoothing does not result in higher accuracy when modeling a moving anode front. Adjusting only the boundary elements is sufficient when frequent re-meshing is used.}},
  author       = {{Harzheim, Sven and Hofmann, Martin and Wallmersperger, Thomas}},
  issn         = {{0001-5970}},
  journal      = {{Acta Mechanica}},
  keywords     = {{Mechanical Engineering, Computational Mechanics}},
  number       = {{11}},
  pages        = {{4427--4439}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Comparison of two mesh-moving techniques for finite element simulations of galvanic corrosion}}},
  doi          = {{10.1007/s00707-022-03326-z}},
  volume       = {{233}},
  year         = {{2022}},
}

@inbook{29771,
  author       = {{Grydin, Olexandr and Mortensen, Dag and Neuser, Moritz and Lindholm, Dag and Fjaer, Hallvard G. and Schaper, Mirko}},
  booktitle    = {{Light Metals 2022}},
  isbn         = {{9783030925284}},
  issn         = {{2367-1181}},
  publisher    = {{Springer International Publishing}},
  title        = {{{Numerical and Experimental Investigation of Heat Transfer in the Solidification-Deformation Zone During Twin-Roll Casting of Aluminum Strips}}},
  doi          = {{10.1007/978-3-030-92529-1_96}},
  year         = {{2022}},
}

@phdthesis{24760,
  abstract     = {{Anwendungen von Laser-Sinter Bauteilen als Sichtteile sind aufgrund der vergleichsweise schlechten Oberflächenqualität sehr begrenzt. In dieser Arbeit werden dreidimensionale Kennwerte benutzt, um die Oberflächenqualität von Laser-Sinter Bauteiloberflächen und die Einflüsse aus unterschiedlichen Bereichen der gesamten Prozesskette zu evaluieren. Beispielsweise wurden objektive Kennwerte, mit deren Hilfe Orangenhaut zu identifizieren ist, und Prozessparameter, die diese deutlich vermindern, gefunden. Mittels Durchführung von haptischen Versuchen wurde das subjektive Empfinden ermittelt und konnten zu objektiven Kennwerten korreliert werden. Eine mikroskopische Betrachtung des flachen Oberflächenwinkels mit verschieden farbigen Pulvern zeigt neue Erkenntnisse zum Anschmelzvorgang von Partikeln an die Schmelze. Zur nachträglichen Glättung von Oberflächen wurden mechanische, chemische und optische Nachbehandlungsmethoden verwendet und deren Potential aufgezeigt. Eine abschließende neuartige Simulation der dreidimensionalen Topografie bildet die Grundlage für ein Programm zur automatischen und funktionsgerechten Orientierung von Bauteilen, welche am Beispiel eines realen Bauteils erfolgreich validiert wurde. Zusammengenommen zeigen die Ergebnisse, dass die richtige Wahl von Bauorientierung und Prozessparametern entscheidend für die Bauteilqualität ist und selbst eine aufwendige Nachbearbeitung eine ungeschickte Wahl derer nur schwerlich ausgleichen kann.
}},
  author       = {{Delfs, Patrick}},
  isbn         = {{978-3-8440-7825-1}},
  keywords     = {{Additive Fertigung, Oberflächenqualität, 3D, Topografie, Simulation, PA12, Laser-Sintern, Rauheit}},
  pages        = {{126}},
  publisher    = {{Shaker Verlag GmbH}},
  title        = {{{Dreidimensionale Oberflächenanalyse und Topografie-Simulation additiv hergestellter Laser-Sinter Bauteile}}},
  volume       = {{22}},
  year         = {{2021}},
}

@phdthesis{24770,
  abstract     = {{Das Fused Deposition Modeling (FDM) ist ein Verfahren zur additiven Fertigung (AF), welches von der Firma Stratasys Ltd. (früher Stratasys Inc.) kommerzialisiert wurde. Heute existieren auch FDM Maschinen anderer Hersteller. Im Gegensatz zu den Maschinen von Stratasys können bei diesen die Prozessparameter frei gewählt werden. Dadurch ist die Verarbeitung herstellerfremder Materialien möglich. Wie in allen AF-Verfahren, werden im FDM bestimmte Anforderungen an die zu verarbeitenden Materialien gestellt. Die Materialien sollten daher speziell für das FDM ausgewählt bzw. entwickelt werden. Die für eine gute Verarbeitbarkeit notwendigen Materialeigenschaften sind aktuell jedoch nicht hinreichend bekannt. Vielmehr sind auch keine Vorgehensweisen bekannt, um die Verarbeitungseignung verschiedener Materialien im FDM zu bewerten.
Im Rahmen dieser Arbeit werden daher Vorgehensweisen vorgestellt, um die Verarbeitungseignung thermoplastischer Kunststoffe im FDM anhand bestimmter Merkmale zu bewerten. Die Schweißnahtqualität, der Bauteilverzug und die Gestaltungsfreiheit werden als wichtige Merkmale identifiziert. Unter Beachtung relevanter Einflussgrößen werden je Merkmal Probekörper und Prüfmethoden entwickelt, um merkmalspezifische Kennwerte zu definieren. Dadurch ist der Vergleich unterschiedlicher Materialien, unabhängig von der verwendeten Maschine und der Datenaufbereitung, möglich. Letztendlich werden verschiedene Materialmodifikationen auf Basis von PA 6 erstellt und mit Hilfe der vorgestellten Vorgehensweisen untersucht und bewertet.}},
  author       = {{Schumacher, Christian}},
  isbn         = {{978-3-8440-7925-8}},
  pages        = {{262}},
  publisher    = {{Shaker Verlag}},
  title        = {{{Erarbeitung eines methodischen Vorgehens zur merkmalspezifischen Charakterisierung der Verarbeitungseignung von nicht verstärkten und faserverstärkten Kunststoffen im Fused Deposition Modeling am Beispiel von Polyamid 6}}},
  volume       = {{24}},
  year         = {{2021}},
}

@article{25272,
  author       = {{Engelkemeier, Katja and Sun, Aijia and Voswinkel, Dietrich and Grydin, Olexandr and Schaper, Mirko and Bremser, Wolfgang}},
  issn         = {{2196-0216}},
  journal      = {{ChemElectroChem}},
  pages        = {{2155--2168}},
  title        = {{{Zinc Anodizing: Structural Diversity of Anodic Zinc Oxide Controlled by the Type of Electrolyte}}},
  doi          = {{10.1002/celc.202100216}},
  year         = {{2021}},
}

@inproceedings{25576,
  author       = {{Moritzer, Elmar and Krassmann, Dimitri and Brikmann, Johannes}},
  title        = {{{Joining of Sheet Metal and Thermoplastic Composites Using Injection Riveting}}},
  year         = {{2021}},
}

@article{25577,
  author       = {{Moritzer, Elmar and Krassmann, Dimitri and Brikmann, Johannes}},
  journal      = {{Joining Plastics}},
  number       = {{3-4}},
  title        = {{{Fügen von thermoplastischen Composites mit Metallteilen durch Spritznieten}}},
  volume       = {{15}},
  year         = {{2021}},
}

@article{25605,
  abstract     = {{The nonlinear process of second harmonic generation (SHG) in monolayer (1L) transition metal dichalcogenides (TMD), like WS2, strongly depends on the polarization state of the excitation light. By combination of plasmonic nanostructures with 1L-WS2 by transferring it onto a plasmonic nanoantenna array, a hybrid metasurface is realized impacting the polarization dependency of its SHG. Here, we investigate how plasmonic dipole resonances affect the process of SHG in plasmonic–TMD hybrid metasurfaces by nonlinear spectroscopy. We show that the polarization dependency is affected by the lattice structure of plasmonic nanoantenna arrays as well as by the relative orientation between the 1L-WS2 and the individual plasmonic nanoantennas. In addition, such hybrid metasurfaces show SHG in polarization states, where SHG is usually forbidden for either 1L-WS2 or plasmonic nanoantennas. By comparing the SHG in these channels with the SHG generated by the hybrid metasurface components, we detect an enhancement of the SHG signal by a factor of more than 40. Meanwhile, an attenuation of the SHG signal in usually allowed polarization states is observed. Our study provides valuable insight into hybrid systems where symmetries strongly affect the SHG and enable tailored SHG in 1L-WS2 for future applications.}},
  author       = {{Spreyer, Florian and Ruppert, Claudia and Georgi, Philip and Zentgraf, Thomas}},
  issn         = {{1936-0851}},
  journal      = {{ACS Nano}},
  number       = {{10}},
  pages        = {{16719--16728}},
  title        = {{{Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic Hybrid Metasurfaces}}},
  doi          = {{10.1021/acsnano.1c06693}},
  volume       = {{15}},
  year         = {{2021}},
}

@inproceedings{20244,
  author       = {{Gottschalk, Sebastian and Kirchhoff, Jonas and Engels, Gregor}},
  booktitle    = {{Business Modeling and Software Design}},
  editor       = {{Shishkov, Boris}},
  location     = {{Sofia}},
  title        = {{{Extending Business Model Development Tools with Consolidated Expert Knowledge }}},
  doi          = {{10.1007/978-3-030-79976-2_1}},
  year         = {{2021}},
}

@article{28017,
  abstract     = {{Processing aluminum alloys employing powder bed fusion of metals (PBF-LB/M) is becoming more attractive for the industry, especially if lightweight applications are needed. Unfortunately, high-strength aluminum alloys such as AA7075 are prone to hot cracking during PBF-LB/M, as well as welding. Both a large solidification range promoted by the alloying elements zinc and copper and a high thermal gradient accompanied with the manufacturing process conditions lead to or favor hot cracking. In the present study, a simple method for modifying the powder surface with titanium carbide nanoparticles (NPs) as a nucleating agent is aimed. The effect on the microstructure with different amounts of the nucleating agent is shown. For the aluminum alloy 7075 with 2.5 ma% titanium carbide nanoparticles, manufactured via PBF-LB/M, crack-free samples with a refined microstructure having no discernible melt pool boundaries and columnar grains are observed. After using a two-step ageing heat treatment, ultimate tensile strengths up to 465 MPa and an 8.9% elongation at break are achieved. Furthermore, it is demonstrated that not all nanoparticles used remain in the melt pool during PBF-LB/M.}},
  author       = {{Heiland, Steffen and Milkereit, Benjamin and Hoyer, Kay-Peter and Zhuravlev, Evgeny and Keßler, Olaf and Schaper, Mirko}},
  journal      = {{Materials}},
  keywords     = {{grain refinement, crack reduction, laser beam melting, aluminum alloy, titanium carbide, nanoparticle, PBF-LB/M}},
  title        = {{{Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts}}},
  doi          = {{https://doi.org/10.3390/ma14237190}},
  year         = {{2021}},
}

@article{28099,
  abstract     = {{N-body methods are one of the essential algorithmic building blocks of high-performance and parallel computing. Previous research has shown promising performance for implementing n-body simulations with pairwise force calculations on FPGAs. However, to avoid challenges with accumulation and memory access patterns, the presented designs calculate each pair of forces twice, along with both force sums of the involved particles. Also, they require large problem instances with hundreds of thousands of particles to reach their respective peak performance, limiting the applicability for strong scaling scenarios. This work addresses both issues by presenting a novel FPGA design that uses each calculated force twice and overlaps data transfers and computations in a way that allows to reach peak performance even for small problem instances, outperforming previous single precision results even in double precision, and scaling linearly over multiple interconnected FPGAs. For a comparison across architectures, we provide an equally optimized CPU reference, which for large problems actually achieves higher peak performance per device, however, given the strong scaling advantages of the FPGA design, in parallel setups with few thousand particles per device, the FPGA platform achieves highest performance and power efficiency.}},
  author       = {{Menzel, Johannes and Plessl, Christian and Kenter, Tobias}},
  issn         = {{1936-7406}},
  journal      = {{ACM Transactions on Reconfigurable Technology and Systems}},
  number       = {{1}},
  pages        = {{1--30}},
  title        = {{{The Strong Scaling Advantage of FPGAs in HPC for N-body Simulations}}},
  doi          = {{10.1145/3491235}},
  volume       = {{15}},
  year         = {{2021}},
}

@phdthesis{28371,
  author       = {{Drewel, Marvin}},
  isbn         = {{978-3-947647-16-3}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Systematik zum Einstieg in die Plattformökonomie}}},
  volume       = {{397}},
  year         = {{2021}},
}

@phdthesis{28372,
  author       = {{Frank, Maximilian}},
  isbn         = {{978-3-947647-17-0}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Systematik zur Planung des organisationalen Wandels zum Smart Service-Anbieter}}},
  volume       = {{398}},
  year         = {{2021}},
}

@phdthesis{28374,
  author       = {{Bretz, Lukas}},
  isbn         = {{978-3-947647-20-0}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Rahmenwerk zur Planung und Einführung von Systems Engineering und Model-Based Systems Engineering}}},
  volume       = {{401}},
  year         = {{2021}},
}

@inproceedings{28440,
  author       = {{Triebus, Marcel and Reitz, Alexander and Grydin, Olexandr and Grenz, Julian and Schneidt, Andreas and Erhardt, Rüdiger and Tröster, Thomas and Schaper, Mirko}},
  booktitle    = {{13th European LS-DYNA Conference 2021}},
  location     = {{Ulm}},
  title        = {{{Forming Simulation of Tailored Press Hardened Parts}}},
  year         = {{2021}},
}

@book{28461,
  author       = {{Tröster, Thomas and Pfeifer, Florian and Nacke, Bernard and Dietrich, André}},
  isbn         = {{978-3-96780-002-9 }},
  publisher    = {{Forschungsvereinigung Stahlanwendung e.V.}},
  title        = {{{Großserientaugliche induktive Platinenerwärmung für den Warmformprozess}}},
  volume       = {{P1038}},
  year         = {{2021}},
}

@misc{24095,
  author       = {{Moritzer, Elmar and Hecker, Felix and Hirsch, André}},
  booktitle    = {{Kunststoffland NRW report}},
  number       = {{2}},
  pages        = {{42--43}},
  title        = {{{Aus der Forschung in die Anwendung - Materialqualifizierung im Kunststoff Freiformen}}},
  volume       = {{2021}},
  year         = {{2021}},
}

@article{24161,
  author       = {{Moritzer, Elmar and Kröker, Michael}},
  issn         = {{2699-4534}},
  journal      = {{CU reports}},
  title        = {{{Weiterentwicklung von GITBlow für dünnwandige Hohlstrukturen auf Organoblechen}}},
  year         = {{2021}},
}