--- _id: '60990' abstract: - lang: eng text: 'Large Language Models (LLMs) have demonstrated remarkable performance across a wide range of natural language processing tasks. However, their effectiveness in low-resource languages remains underexplored, particularly in complex tasks such as end-to-end Entity Linking (EL), which requires both mention detection and disambiguation against a knowledge base (KB). In earlier work, we introduced IndEL — the first end-to-end EL benchmark dataset for the Indonesian language — covering both a general domain (news) and a specific domain (religious text from the Indonesian translation of the Quran), and evaluated four traditional end-to-end EL systems on this dataset. In this study, we propose ELEVATE-ID, a comprehensive evaluation framework for assessing LLM performance on end-to-end EL in Indonesian. The framework evaluates LLMs under both zero-shot and fine-tuned conditions, using multilingual and Indonesian monolingual models, with Wikidata as the target KB. Our experiments include performance benchmarking, generalization analysis across domains, and systematic error analysis. Results show that GPT-4 and GPT-3.5 achieve the highest accuracy in zero-shot and fine-tuned settings, respectively. However, even fine-tuned GPT-3.5 underperforms compared to DBpedia Spotlight — the weakest of the traditional model baselines — in the general domain. Interestingly, GPT-3.5 outperforms Babelfy in the specific domain. Generalization analysis indicates that fine-tuned GPT-3.5 adapts more effectively to cross-domain and mixed-domain scenarios. Error analysis uncovers persistent challenges that hinder LLM performance: difficulties with non-complete mentions, acronym disambiguation, and full-name recognition in formal contexts. These issues point to limitations in mention boundary detection and contextual grounding. Indonesian-pretrained LLMs, Komodo and Merak, reveal core weaknesses: template leakage and entity hallucination, respectively—underscoring architectural and training limitations in low-resource end-to-end EL.11Code and dataset are available at https://github.com/dice-group/ELEVATE-ID.' article_type: original author: - first_name: Ria Hari full_name: Gusmita, Ria Hari id: '71039' last_name: Gusmita - first_name: Asep Fajar full_name: Firmansyah, Asep Fajar id: '76787' last_name: Firmansyah - first_name: Hamada Mohamed Abdelsamee full_name: Zahera, Hamada Mohamed Abdelsamee id: '72768' last_name: Zahera orcid: 0000-0003-0215-1278 - first_name: Axel-Cyrille full_name: Ngonga Ngomo, Axel-Cyrille id: '65716' last_name: Ngonga Ngomo citation: ama: 'Gusmita RH, Firmansyah AF, Zahera HMA, Ngonga Ngomo A-C. ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian. Data & Knowledge Engineering. 2026;161:102504. doi:https://doi.org/10.1016/j.datak.2025.102504' apa: 'Gusmita, R. H., Firmansyah, A. F., Zahera, H. M. A., & Ngonga Ngomo, A.-C. (2026). ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian. Data & Knowledge Engineering, 161, 102504. https://doi.org/10.1016/j.datak.2025.102504' bibtex: '@article{Gusmita_Firmansyah_Zahera_Ngonga Ngomo_2026, title={ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian}, volume={161}, DOI={https://doi.org/10.1016/j.datak.2025.102504}, journal={Data & Knowledge Engineering}, author={Gusmita, Ria Hari and Firmansyah, Asep Fajar and Zahera, Hamada Mohamed Abdelsamee and Ngonga Ngomo, Axel-Cyrille}, year={2026}, pages={102504} }' chicago: 'Gusmita, Ria Hari, Asep Fajar Firmansyah, Hamada Mohamed Abdelsamee Zahera, and Axel-Cyrille Ngonga Ngomo. “ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian.” Data & Knowledge Engineering 161 (2026): 102504. https://doi.org/10.1016/j.datak.2025.102504.' ieee: 'R. H. Gusmita, A. F. Firmansyah, H. M. A. Zahera, and A.-C. Ngonga Ngomo, “ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian,” Data & Knowledge Engineering, vol. 161, p. 102504, 2026, doi: https://doi.org/10.1016/j.datak.2025.102504.' mla: 'Gusmita, Ria Hari, et al. “ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian.” Data & Knowledge Engineering, vol. 161, 2026, p. 102504, doi:https://doi.org/10.1016/j.datak.2025.102504.' short: R.H. Gusmita, A.F. Firmansyah, H.M.A. Zahera, A.-C. Ngonga Ngomo, Data & Knowledge Engineering 161 (2026) 102504. date_created: 2025-08-24T11:38:51Z date_updated: 2025-08-25T09:40:13Z department: - _id: '574' doi: https://doi.org/10.1016/j.datak.2025.102504 intvolume: ' 161' keyword: - LLMs - Evaluation - End-to-end EL - Indonesian language: - iso: eng main_file_link: - url: https://www.sciencedirect.com/science/article/pii/S0169023X25000990?utm_campaign=STMJ_220042_AUTH_SERV_PA&utm_medium=email&utm_acid=78351008&SIS_ID=&dgcid=STMJ_220042_AUTH_SERV_PA&CMX_ID=&utm_in=DM591673&utm_source=AC_ page: '102504' publication: Data & Knowledge Engineering publication_identifier: issn: - 0169-023X status: public title: 'ELEVATE-ID: Extending Large Language Models for End-to-End Entity Linking Evaluation in Indonesian' type: journal_article user_id: '71039' volume: 161 year: '2026' ... --- _id: '58492' abstract: - lang: eng text: A coupled finite plasticity ductile damage and failure model is proposed for the finite element simulation of clinch joining, which incorporates stress-state dependency and regularisation by gradient-enhancement of the damage variable. Ductile damage is determined based on a failure indicator governed by a failure surface in stress space. The latter is exemplary chosen as a combination of the Hosford–Coulomb and Cockcroft–Latham–Oh failure criteria for the high and low stress triaxiality range, respectively, to cover the wide stress range encountered in forming. Damage is coupled to elasto-plasticity to capture the damage-induced degradation of the stiffness and flow stress. This affects the material behaviour up to failure, thereby realistically altering the stress state. Consequently, especially for highly ductile materials, where substantial necking and localisation precede material fracture, the failure prediction is enhanced. The resulting stress softening is regularised by gradient-enhancement to obtain mesh-objective results. The analysis of a modified punch test experiment emphasises how the damage-induced softening effect can strongly alter the actual stress state towards failure. Moreover, the impact of successful regularisation is shown, and the applicability of the damage and failure model to clinch joining is proven. article_number: '106026' article_type: original author: - first_name: Johannes full_name: Friedlein, Johannes last_name: Friedlein - first_name: Julia full_name: Mergheim, Julia last_name: Mergheim - first_name: Paul full_name: Steinmann, Paul last_name: Steinmann citation: ama: Friedlein J, Mergheim J, Steinmann P. Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining. Journal of the Mechanics and Physics of Solids. 2025;196. doi:10.1016/j.jmps.2025.106026 apa: Friedlein, J., Mergheim, J., & Steinmann, P. (2025). Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining. Journal of the Mechanics and Physics of Solids, 196, Article 106026. https://doi.org/10.1016/j.jmps.2025.106026 bibtex: '@article{Friedlein_Mergheim_Steinmann_2025, title={Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining}, volume={196}, DOI={10.1016/j.jmps.2025.106026}, number={106026}, journal={Journal of the Mechanics and Physics of Solids}, publisher={Elsevier BV}, author={Friedlein, Johannes and Mergheim, Julia and Steinmann, Paul}, year={2025} }' chicago: Friedlein, Johannes, Julia Mergheim, and Paul Steinmann. “Modelling of Stress-State-Dependent Ductile Damage with Gradient-Enhancement Exemplified for Clinch Joining.” Journal of the Mechanics and Physics of Solids 196 (2025). https://doi.org/10.1016/j.jmps.2025.106026. ieee: 'J. Friedlein, J. Mergheim, and P. Steinmann, “Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining,” Journal of the Mechanics and Physics of Solids, vol. 196, Art. no. 106026, 2025, doi: 10.1016/j.jmps.2025.106026.' mla: Friedlein, Johannes, et al. “Modelling of Stress-State-Dependent Ductile Damage with Gradient-Enhancement Exemplified for Clinch Joining.” Journal of the Mechanics and Physics of Solids, vol. 196, 106026, Elsevier BV, 2025, doi:10.1016/j.jmps.2025.106026. short: J. Friedlein, J. Mergheim, P. Steinmann, Journal of the Mechanics and Physics of Solids 196 (2025). date_created: 2025-01-31T17:04:12Z date_updated: 2025-01-31T17:06:22Z doi: 10.1016/j.jmps.2025.106026 intvolume: ' 196' keyword: - Finite plasticity - Ductile damage - Gradient-enhancement - Stress-state dependency - Failure language: - iso: eng project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '139' name: 'TRR 285 – A05: TRR 285 - Subproject A05' publication: Journal of the Mechanics and Physics of Solids publication_identifier: issn: - 0022-5096 publication_status: published publisher: Elsevier BV status: public title: Modelling of stress-state-dependent ductile damage with gradient-enhancement exemplified for clinch joining type: journal_article user_id: '84990' volume: 196 year: '2025' ... --- _id: '59511' abstract: - lang: eng text: AbstractTo minimize or avoid the use of antibiotics, antimicrobial polymers have emerged as a promising option to fight biomaterial‐associated infections, e.g., on titanium‐based implants. However, the challenge is to develop active polymers that exhibit an antimicrobial effect and are compatible with human cells. Different studies aiming for biocidal polymers active in soluble mode, focused on the ratio of cationic to hydrophobic groups, while only marginal knowledge is available for immobilized components. Here a strong hydrophilic electrolyte 4‐vinylbenzyltrimethylammonium chloride (TMA) is chosen as the cationic component. The block composition of the polycationic segment is modified with styrene (Sty) regarding the amphiphilic balance. To adsorb such polymers onto titanium surfaces they are equipped with a polyphosphonic acid anchor block by sequential reversible‐addition‐fragmentation chain‐transfer polymerization (RAFT) polymerization. The polymer composition affected the wetting behavior of adsorbed coatings with water contact angles ranging from 17° to 72°, while zetapotential measurements confirmed high extent of positive charges for all adsorbed polymer coatings. The fundamentally modified block composition resulted in significantly improved cytocompatibility. Antimicrobial efficacy in early bacterial adhesion is still retained from slightly antiadhesive coatings to combined antiadhesive/biocidal activity depending on Sty/TMA ratio in random polymers while a block copolymer revealed lowest antimicrobial effect. author: - first_name: Cornelia full_name: Wolf‐Brandstetter, Cornelia last_name: Wolf‐Brandstetter - first_name: Rafael full_name: Methling, Rafael last_name: Methling - first_name: Dirk full_name: Kuckling, Dirk id: '287' last_name: Kuckling citation: ama: Wolf‐Brandstetter C, Methling R, Kuckling D. Adsorbable and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility. Macromolecular Materials and Engineering. Published online 2025. doi:10.1002/mame.202500078 apa: Wolf‐Brandstetter, C., Methling, R., & Kuckling, D. (2025). Adsorbable and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility. Macromolecular Materials and Engineering. https://doi.org/10.1002/mame.202500078 bibtex: '@article{Wolf‐Brandstetter_Methling_Kuckling_2025, title={Adsorbable and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility}, DOI={10.1002/mame.202500078}, journal={Macromolecular Materials and Engineering}, publisher={Wiley}, author={Wolf‐Brandstetter, Cornelia and Methling, Rafael and Kuckling, Dirk}, year={2025} }' chicago: Wolf‐Brandstetter, Cornelia, Rafael Methling, and Dirk Kuckling. “Adsorbable and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility.” Macromolecular Materials and Engineering, 2025. https://doi.org/10.1002/mame.202500078. ieee: 'C. Wolf‐Brandstetter, R. Methling, and D. Kuckling, “Adsorbable and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility,” Macromolecular Materials and Engineering, 2025, doi: 10.1002/mame.202500078.' mla: Wolf‐Brandstetter, Cornelia, et al. “Adsorbable and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility.” Macromolecular Materials and Engineering, Wiley, 2025, doi:10.1002/mame.202500078. short: C. Wolf‐Brandstetter, R. Methling, D. Kuckling, Macromolecular Materials and Engineering (2025). date_created: 2025-04-11T07:35:39Z date_updated: 2025-04-11T07:43:06Z department: - _id: '163' doi: 10.1002/mame.202500078 keyword: - antiadhesive surfaces - antimicrobial polymers - grafting to - polymerbrushes language: - iso: eng main_file_link: - url: https://onlinelibrary.wiley.com/doi/epdf/10.1002/mame.202500078 publication: Macromolecular Materials and Engineering publication_identifier: issn: - 1438-7492 - 1439-2054 publication_status: published publisher: Wiley status: public title: Adsorbable and Antimicrobial Amphiphilic Block Copolymers with Enhanced Biocompatibility type: journal_article user_id: '94' year: '2025' ... --- _id: '62080' abstract: - lang: eng text: The failure behavior of fiber reinforced polymers (FRP) is strongly influenced by their microstructure, i.e. fiber arrangement or local fiber volume content. However, this information cannot be directly used for structural analyses, since it requires a discretization on micrometer level. Therefore, current failure theories do not directly account for such effects, but describe the behavior averaged over an entire specimen. This foundation in experimentally accessible loading conditions leads to purely theory based extension to more complex stress states without direct validation possibilities. This work aims at leveraging micro-scale simulations to obtain failure information under arbitrary loading conditions. The results are propagated to the meso-scale, enabling efficient structural analyses, by means of machine learning (ML). It is shown that the ML model is capable of correctly assessing previously unseen stress states and therefore poses an efficient tool of exploiting information from the micro-scale in larger simulations. author: - first_name: Johannes full_name: Gerritzen, Johannes id: '105344' last_name: Gerritzen orcid: 0000-0002-0169-8602 - first_name: Andreas full_name: Hornig, Andreas last_name: Hornig - first_name: Maik full_name: Gude, Maik last_name: Gude citation: ama: 'Gerritzen J, Hornig A, Gude M. Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning. In: Meschut G, Bobbert M, Duflou J, et al., eds. Sheet Metal 2025. Materials Research Proceedings. Materials Research Forum LLC, Materials Research Foundations; 2025:260–267. doi:10.21741/9781644903551-32' apa: 'Gerritzen, J., Hornig, A., & Gude, M. (2025). Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning. In G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, & F. Micari (Eds.), Sheet Metal 2025 (pp. 260–267). Materials Research Forum LLC, Materials Research Foundations. https://doi.org/10.21741/9781644903551-32' bibtex: '@inproceedings{Gerritzen_Hornig_Gude_2025, series={Materials Research Proceedings}, title={Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning}, DOI={10.21741/9781644903551-32}, booktitle={Sheet Metal 2025}, publisher={Materials Research Forum LLC, Materials Research Foundations}, author={Gerritzen, Johannes and Hornig, Andreas and Gude, Maik}, editor={Meschut, G. and Bobbert, M. and Duflou, J. and Fratini, L. and Hagenah, H. and Martins, P. and Merklein, M. and Micari, F.}, year={2025}, pages={260–267}, collection={Materials Research Proceedings} }' chicago: 'Gerritzen, Johannes, Andreas Hornig, and Maik Gude. “Efficient Failure Information Propagation under Complex Stress States in Fiber Reinforced Polymers: From Micro- to Meso-Scale Using Machine Learning.” In Sheet Metal 2025, edited by G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, and F. Micari, 260–267. Materials Research Proceedings. Materials Research Forum LLC, Materials Research Foundations, 2025. https://doi.org/10.21741/9781644903551-32.' ieee: 'J. Gerritzen, A. Hornig, and M. Gude, “Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning,” in Sheet Metal 2025, 2025, pp. 260–267, doi: 10.21741/9781644903551-32.' mla: 'Gerritzen, Johannes, et al. “Efficient Failure Information Propagation under Complex Stress States in Fiber Reinforced Polymers: From Micro- to Meso-Scale Using Machine Learning.” Sheet Metal 2025, edited by G. Meschut et al., Materials Research Forum LLC, Materials Research Foundations, 2025, pp. 260–267, doi:10.21741/9781644903551-32.' short: 'J. Gerritzen, A. Hornig, M. Gude, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, F. Micari (Eds.), Sheet Metal 2025, Materials Research Forum LLC, Materials Research Foundations, 2025, pp. 260–267.' date_created: 2025-11-04T12:48:37Z date_updated: 2026-02-27T06:43:37Z doi: 10.21741/9781644903551-32 editor: - first_name: G. full_name: Meschut, G. last_name: Meschut - first_name: M. full_name: Bobbert, M. last_name: Bobbert - first_name: J. full_name: Duflou, J. last_name: Duflou - first_name: L. full_name: Fratini, L. last_name: Fratini - first_name: H. full_name: Hagenah, H. last_name: Hagenah - first_name: P. full_name: Martins, P. last_name: Martins - first_name: M. full_name: Merklein, M. last_name: Merklein - first_name: F. full_name: Micari, F. last_name: Micari keyword: - Failure - Fiber Reinforced Plastic - Machine Learning language: - iso: eng page: 260–267 project: - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '137' name: TRR 285 - Subproject A03 - _id: '131' name: TRR 285 - Project Area A publication: Sheet Metal 2025 publication_identifier: isbn: - 978-1-64490-354-4 publisher: Materials Research Forum LLC, Materials Research Foundations series_title: Materials Research Proceedings status: public title: 'Efficient failure information propagation under complex stress states in fiber reinforced polymers: From micro- to meso-scale using machine learning' type: conference user_id: '105344' year: '2025' ... --- _id: '51133' abstract: - lang: eng text: In order to standardize spray flame synthesis (SFS) studies, intensive work has been done in recent years on the design of burner types. Thus, in 2019, the so-called SpraySyn1 burner was introduced (SS1), which was subsequently characterized in numerical and experimental studies. Based on this research, a modification of the nozzle design was proposed, which has now been considered in the successor model, SpraySyn2 (SS2). As little is known about the effect of the nozzle adaptation on the particle formation, we operated both burners under identical operating conditions to produce maghemite. The final powder comparison showed that SS2 yielded considerable higher specific surface areas (associated with smaller primary particle sizes), lower polydispersity, and higher phase purity. To obtain further information on the size distributions of aggregates and agglomerates generated by SS2, aerosol samples were extracted by hole in a tube (HIAT) sampling and characterized by scanning mobility particle sizing (SMPS). Samples were extracted along the centerline at different heights above the burner (HAB) above the visible flame tip (>7 cm), and quenching experiments were performed to extract the aerosol samples at different dilution rates. Thereby, it was demonstrated that performing detailed quenching experiments is crucial for obtaining representative HIAT-SMPS data. In particular, agglomerates/aggregate sizes were overestimated by up to ~70 % if samples were not sufficiently diluted. If sufficient dilution was applied, distribution widths and mean particle mobility diameters were determined with high accuracy (sample standard derivation <5 %). Our data suggested the evolution of primary particle sizes was mostly completed <7 cm HAB and it was shown aggregates/agglomerates present above the visible flame were compact in structure (non- fractal). The mean diameter of the particle ensemble grew along the centerline from 6.9 nm (7 cm) to 11.4 nm (15 cm), while distribution widths grew from 1.42 to 1.52. citation: ama: Tischendorf R, Massopo O, Schmid H-J, et al., eds. Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS). Elsevier; 2024. doi:https://doi.org/10.1016/j.jaecs.2023.100235 apa: Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS). (2024). In R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde, H. Pitsch, & R. Kneer (Eds.), Applications in Energy and Combustion Science. Elsevier. https://doi.org/10.1016/j.jaecs.2023.100235 bibtex: '@book{Tischendorf_Massopo_Schmid_Pyrmak_Dupont_Fröde_Pitsch_Kneer_2024, title={Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)}, DOI={https://doi.org/10.1016/j.jaecs.2023.100235}, journal={Applications in Energy and Combustion Science}, publisher={Elsevier}, year={2024} }' chicago: Tischendorf, Ricardo, Orlando Massopo, Hans-Joachim Schmid, Olek Pyrmak, Sophie Dupont, Fabian Fröde, Heinz Pitsch, and Reinhold Kneer, eds. Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS). Applications in Energy and Combustion Science. Elsevier, 2024. https://doi.org/10.1016/j.jaecs.2023.100235. ieee: R. Tischendorf et al., Eds., Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS). Elsevier, 2024. mla: Tischendorf, Ricardo, et al., editors. “Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS).” Applications in Energy and Combustion Science, Elsevier, 2024, doi:https://doi.org/10.1016/j.jaecs.2023.100235. short: R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde, H. Pitsch, R. Kneer, eds., Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS), Elsevier, 2024. date_created: 2024-02-05T12:02:57Z date_updated: 2024-02-05T12:25:00Z ddc: - '660' department: - _id: '150' doi: https://doi.org/10.1016/j.jaecs.2023.100235 editor: - first_name: Ricardo full_name: Tischendorf, Ricardo id: '67002' last_name: Tischendorf - first_name: Orlando full_name: Massopo, Orlando id: '98419' last_name: Massopo - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid orcid: 000-0001-8590-1921 - first_name: Olek full_name: Pyrmak, Olek last_name: Pyrmak - first_name: Sophie full_name: Dupont, Sophie last_name: Dupont - first_name: Fabian full_name: Fröde, Fabian last_name: Fröde - first_name: Heinz full_name: Pitsch, Heinz last_name: Pitsch - first_name: Reinhold full_name: Kneer, Reinhold last_name: Kneer has_accepted_license: '1' keyword: - Flame Spray Pyrolysis - SpraySyn2 - Spray flame synthesis - Maghemite nanoparticles - Gas to particle-conversion - Hole in a tube sampling language: - iso: eng main_file_link: - url: https://www.sciencedirect.com/science/article/pii/S2666352X23001243?ref=cra_js_challenge&fr=RR-1 publication: Applications in Energy and Combustion Science publication_status: published publisher: Elsevier status: public title: Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS) type: journal_editor user_id: '98419' year: '2024' ... --- _id: '53200' abstract: - lang: eng text: Customer misbehavior poses a major risk in the sharing economy. For example, property damage to shared accommodations imposes burdens on both sharing platforms and hosts, especially if misbehaving guests purposefully, not coincidentally conceal, or fail to report damages. Such misbehavior might be facilitated by remote listing management and the lack of face-to-face interactions between hosts and guests. Therefore, this study investigated the effects of host–guest interaction modes (face-to-face, online-only) and frequency on guests’ misbehavior concealment intentions. Social identification and irritation emerged as bright- and dark side mediators, respectively. Guests who interacted face-to-face (vs. online-only) with hosts exhibited weaker intentions to conceal their misbehavior due to increased social identification. Platforms can elicit social identification by engaging guests in virtual communities. However, when face-to-face interactions become excessive, guests experience irritation and are more likely to conceal their misbehavior. These insights offer practical implications for both peer-to-peer sharing platforms and hosts. article_number: '114582' article_type: original author: - first_name: Edna full_name: Ozuna, Edna id: '103813' last_name: Ozuna - first_name: Lena full_name: Steinhoff, Lena id: '4336' last_name: Steinhoff citation: ama: 'Ozuna E, Steinhoff L. “Look me in the eye, customer”: How do face-to-face interactions in peer-to-peer sharing economy services affect customers’ misbehavior concealment intentions? Journal of Business Research. 2024;177. doi:10.1016/j.jbusres.2024.114582' apa: 'Ozuna, E., & Steinhoff, L. (2024). “Look me in the eye, customer”: How do face-to-face interactions in peer-to-peer sharing economy services affect customers’ misbehavior concealment intentions? Journal of Business Research, 177, Article 114582. https://doi.org/10.1016/j.jbusres.2024.114582' bibtex: '@article{Ozuna_Steinhoff_2024, title={“Look me in the eye, customer”: How do face-to-face interactions in peer-to-peer sharing economy services affect customers’ misbehavior concealment intentions?}, volume={177}, DOI={10.1016/j.jbusres.2024.114582}, number={114582}, journal={Journal of Business Research}, publisher={Elsevier BV}, author={Ozuna, Edna and Steinhoff, Lena}, year={2024} }' chicago: 'Ozuna, Edna, and Lena Steinhoff. “‘Look Me in the Eye, Customer’: How Do Face-to-Face Interactions in Peer-to-Peer Sharing Economy Services Affect Customers’ Misbehavior Concealment Intentions?” Journal of Business Research 177 (2024). https://doi.org/10.1016/j.jbusres.2024.114582.' ieee: 'E. Ozuna and L. Steinhoff, “‘Look me in the eye, customer’: How do face-to-face interactions in peer-to-peer sharing economy services affect customers’ misbehavior concealment intentions?,” Journal of Business Research, vol. 177, Art. no. 114582, 2024, doi: 10.1016/j.jbusres.2024.114582.' mla: 'Ozuna, Edna, and Lena Steinhoff. “‘Look Me in the Eye, Customer’: How Do Face-to-Face Interactions in Peer-to-Peer Sharing Economy Services Affect Customers’ Misbehavior Concealment Intentions?” Journal of Business Research, vol. 177, 114582, Elsevier BV, 2024, doi:10.1016/j.jbusres.2024.114582.' short: E. Ozuna, L. Steinhoff, Journal of Business Research 177 (2024). date_created: 2024-04-04T08:16:27Z date_updated: 2024-04-24T11:17:09Z doi: 10.1016/j.jbusres.2024.114582 intvolume: ' 177' keyword: - Sharing economy - Customer misbehavior - Peer-to-peer services - Face-to-face interactions - Experimental research language: - iso: eng publication: Journal of Business Research publication_identifier: issn: - 0148-2963 publication_status: published publisher: Elsevier BV status: public title: '“Look me in the eye, customer”: How do face-to-face interactions in peer-to-peer sharing economy services affect customers’ misbehavior concealment intentions?' type: journal_article user_id: '103813' volume: 177 year: '2024' ... --- _id: '54916' abstract: - lang: eng text: Reputation systems for companies to rate each other's performance are largely unexplored in research and hardly available in practice. However, these systems are relevant for prospective buyers to find a trustworthy seller. This observation applies especially to short-lived business relationships where fulfilling the performance promise is subject to a high degree of uncertainty. This paper explores the value of a reputation system for a business-to-business (B2B) context and focuses on three novel solutions for designing reputation systems. These solutions include selling ratings, conducting ratings as payments, and employing a counter-rating mechanism. We interview buyers to fathom the added value of these solutions in different contexts. Our findings suggest that such a system is useful for companies acting in less transparent markets and also helps when companies already have a good market overview. Depending on the market conditions and business context, the perceived value of the proposed system varies. author: - first_name: Simon full_name: Hemmrich, Simon id: '83557' last_name: Hemmrich - first_name: Jannika Marie full_name: Schäfer, Jannika Marie id: '74374' last_name: Schäfer - first_name: Philipp full_name: Hansmeier, Philipp id: '55603' last_name: Hansmeier - first_name: Daniel full_name: Beverungen, Daniel id: '59677' last_name: Beverungen citation: ama: 'Hemmrich S, Schäfer JM, Hansmeier P, Beverungen D. The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers. In: Proceedings of the 57th Hawaii International Conference on System Sciences. ; 2024.' apa: Hemmrich, S., Schäfer, J. M., Hansmeier, P., & Beverungen, D. (2024). The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers. Proceedings of the 57th Hawaii International Conference on System Sciences. Hawaii International Conference on System Sciences 2024, Honolulu. bibtex: '@inproceedings{Hemmrich_Schäfer_Hansmeier_Beverungen_2024, title={The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers}, booktitle={Proceedings of the 57th Hawaii International Conference on System Sciences}, author={Hemmrich, Simon and Schäfer, Jannika Marie and Hansmeier, Philipp and Beverungen, Daniel}, year={2024} }' chicago: Hemmrich, Simon, Jannika Marie Schäfer, Philipp Hansmeier, and Daniel Beverungen. “The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers.” In Proceedings of the 57th Hawaii International Conference on System Sciences, 2024. ieee: S. Hemmrich, J. M. Schäfer, P. Hansmeier, and D. Beverungen, “The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers,” presented at the Hawaii International Conference on System Sciences 2024, Honolulu, 2024. mla: Hemmrich, Simon, et al. “The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers.” Proceedings of the 57th Hawaii International Conference on System Sciences, 2024. short: 'S. Hemmrich, J.M. Schäfer, P. Hansmeier, D. Beverungen, in: Proceedings of the 57th Hawaii International Conference on System Sciences, 2024.' conference: end_date: 2024-01-06 location: Honolulu name: Hawaii International Conference on System Sciences 2024 start_date: 2024-01-03 date_created: 2024-06-27T09:52:26Z date_updated: 2024-06-27T10:01:29Z department: - _id: '195' keyword: - Electronic Marketing - business-to-business - new design approach - reputation systems - value for buyers. language: - iso: eng main_file_link: - url: https://www.researchgate.net/profile/Simon-Hemmrich-3/publication/374550987_The_Value_of_Reputation_Systems_in_Business_Contexts_-A_Qualitative_Study_Taking_the_View_of_Buyers/links/652406723ab6cb4ec6d01951/The-Value-of-Reputation-Systems-in-Business-Contexts-A-Qualitative-Study-Taking-the-View-of-Buyers.pdf publication: Proceedings of the 57th Hawaii International Conference on System Sciences publication_status: published status: public title: The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers type: conference user_id: '74374' year: '2024' ... --- _id: '58491' abstract: - lang: eng text: Similar to bulk metal forming, clinch joining is characterised by large plastic deformations and a variety of different 3D stress states, including severe compression. However, inherent to plastic forming is the nucleation and growth of defects, whose detrimental effects on the material behaviour can be described by continuum damage models and eventually lead to material failure. As the damage evolution strongly depends on the stress state, a stress-state-dependent model is utilised to correctly track the accumulation. To formulate and parameterise this model, besides classical experiments, so-called modified punch tests are also integrated herein to enhance the calibration of the failure model by capturing a larger range of stress states and metal-forming-specific loading conditions. Moreover, when highly ductile materials are considered, such as the dual-phase steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong necking and localisation might occur prior to fracture. This can alter the stress state and affect the actual strain at failure. This influence is captured by coupling plasticity and damage to incorporate the damage-induced softening effect. Its relative importance is shown by conducting inverse parameter identifications to determine damage and failure parameters for both mentioned ductile metals based on up to 12 different experiments. article_number: '157' author: - first_name: Johannes full_name: Friedlein, Johannes last_name: Friedlein - first_name: Max full_name: Böhnke, Max last_name: Böhnke - first_name: Malte full_name: Schlichter, Malte last_name: Schlichter - first_name: Mathias full_name: Bobbert, Mathias last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson last_name: Meschut - first_name: Julia full_name: Mergheim, Julia last_name: Mergheim - first_name: Paul full_name: Steinmann, Paul last_name: Steinmann citation: ama: Friedlein J, Böhnke M, Schlichter M, et al. Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. Journal of Manufacturing and Materials Processing. 2024;8(4). doi:10.3390/jmmp8040157 apa: Friedlein, J., Böhnke, M., Schlichter, M., Bobbert, M., Meschut, G., Mergheim, J., & Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. Journal of Manufacturing and Materials Processing, 8(4), Article 157. https://doi.org/10.3390/jmmp8040157 bibtex: '@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024, title={Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={10.3390/jmmp8040157}, number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul}, year={2024} }' chicago: Friedlein, Johannes, Max Böhnke, Malte Schlichter, Mathias Bobbert, Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” Journal of Manufacturing and Materials Processing 8, no. 4 (2024). https://doi.org/10.3390/jmmp8040157. ieee: 'J. Friedlein et al., “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining,” Journal of Manufacturing and Materials Processing, vol. 8, no. 4, Art. no. 157, 2024, doi: 10.3390/jmmp8040157.' mla: Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” Journal of Manufacturing and Materials Processing, vol. 8, no. 4, 157, MDPI AG, 2024, doi:10.3390/jmmp8040157. short: J. Friedlein, M. Böhnke, M. Schlichter, M. Bobbert, G. Meschut, J. Mergheim, P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024). date_created: 2025-01-31T16:59:13Z date_updated: 2025-01-31T17:03:34Z doi: 10.3390/jmmp8040157 intvolume: ' 8' issue: '4' keyword: - ductile damage - stress-state dependency - failure - parameter identification - punch test - clinching language: - iso: eng project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '139' name: 'TRR 285 – A05: TRR 285 - Subproject A05' publication: Journal of Manufacturing and Materials Processing publication_identifier: issn: - 2504-4494 publication_status: published publisher: MDPI AG status: public title: Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining type: journal_article user_id: '84990' volume: 8 year: '2024' ... --- _id: '57895' abstract: - lang: eng text: "In our paper, we present a study in which we investigate which strategies pre-service teachers (PSTs) use to find and, if necessary, reject possible candidates for congruence theorems for quadrilaterals. This study was conducted before the PTSs attended a university geometry course. In this way, statements about learning prerequisites can be made. For the study, we analyzed group discussions of PSTs to identify typical approaches and evaluate them from a mathematical perspective. The results can be considered for the further development of courses for PSTs and generate hypotheses\r\nfor further research." author: - first_name: Max full_name: Hoffmann, Max id: '32202' last_name: Hoffmann orcid: 0000-0002-6964-7123 - first_name: Sarah full_name: Schlüter, Sarah last_name: Schlüter citation: ama: 'Hoffmann M, Schlüter S. How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals? In: González-Martín AS, Gueudet G, Florensa I, Lombard N, eds. Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024). Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM; 2024.' apa: Hoffmann, M., & Schlüter, S. (2024). How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals? In A. S. González-Martín, G. Gueudet, I. Florensa, & N. Lombard (Eds.), Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024). Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM. bibtex: '@inproceedings{Hoffmann_Schlüter_2024, place={Barcelona}, title={How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?}, booktitle={Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)}, publisher={Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM}, author={Hoffmann, Max and Schlüter, Sarah}, editor={González-Martín, Alejandro S. and Gueudet, Ghislaine and Florensa, Ignasi and Lombard, Nathan}, year={2024} }' chicago: 'Hoffmann, Max, and Sarah Schlüter. “How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?” In Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024), edited by Alejandro S. González-Martín, Ghislaine Gueudet, Ignasi Florensa, and Nathan Lombard. Barcelona: Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM, 2024.' ieee: M. Hoffmann and S. Schlüter, “How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?,” in Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024), 2024. mla: Hoffmann, Max, and Sarah Schlüter. “How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?” Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024), edited by Alejandro S. González-Martín et al., Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM, 2024. short: 'M. Hoffmann, S. Schlüter, in: A.S. González-Martín, G. Gueudet, I. Florensa, N. Lombard (Eds.), Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024), Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM, Barcelona, 2024.' date_created: 2025-01-02T10:45:53Z date_updated: 2025-01-02T10:45:59Z ddc: - '370' - '510' department: - _id: '97' - _id: '643' editor: - first_name: Alejandro S. full_name: González-Martín, Alejandro S. last_name: González-Martín - first_name: Ghislaine full_name: Gueudet, Ghislaine last_name: Gueudet - first_name: Ignasi full_name: Florensa, Ignasi last_name: Florensa - first_name: Nathan full_name: Lombard, Nathan last_name: Lombard file: - access_level: closed content_type: application/pdf creator: maxh date_created: 2025-01-02T10:42:21Z date_updated: 2025-01-02T10:42:21Z file_id: '57896' file_name: 2024_Hoffmann_Schlueter_CongruenceQuadrilaterals.pdf file_size: 315111 relation: main_file success: 1 file_date_updated: 2025-01-02T10:42:21Z has_accepted_license: '1' keyword: - Teachers’ and students’ practices at university level - Transition to - across and from university mathematics - Teaching and learning of specific topics in university mathematics - Congruence - Quadrilaterals language: - iso: eng main_file_link: - open_access: '1' url: https://indrum2024.sciencesconf.org/data/pages/Proceedings_INDRUM2024.pdf oa: '1' place: Barcelona publication: Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024) publication_status: published publisher: Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM quality_controlled: '1' status: public title: How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals? type: conference user_id: '32202' year: '2024' ... --- _id: '52204' article_type: review author: - first_name: Matteo full_name: Genovese, Matteo last_name: Genovese - first_name: Alexander full_name: Schlüter, Alexander id: '103302' last_name: Schlüter orcid: 0000-0002-2569-1624 - first_name: Eugenio full_name: Scionti, Eugenio last_name: Scionti - first_name: Francesco full_name: Piraino, Francesco last_name: Piraino - first_name: Orlando full_name: Corigliano, Orlando last_name: Corigliano - first_name: Petronilla full_name: Fragiacomo, Petronilla last_name: Fragiacomo citation: ama: Genovese M, Schlüter A, Scionti E, Piraino F, Corigliano O, Fragiacomo P. Power-to-hydrogen and hydrogen-to-X energy systems for the industry of the future in Europe. International Journal of Hydrogen Energy. 2023;48(44):16545-16568. doi:10.1016/j.ijhydene.2023.01.194 apa: Genovese, M., Schlüter, A., Scionti, E., Piraino, F., Corigliano, O., & Fragiacomo, P. (2023). Power-to-hydrogen and hydrogen-to-X energy systems for the industry of the future in Europe. International Journal of Hydrogen Energy, 48(44), 16545–16568. https://doi.org/10.1016/j.ijhydene.2023.01.194 bibtex: '@article{Genovese_Schlüter_Scionti_Piraino_Corigliano_Fragiacomo_2023, title={Power-to-hydrogen and hydrogen-to-X energy systems for the industry of the future in Europe}, volume={48}, DOI={10.1016/j.ijhydene.2023.01.194}, number={44}, journal={International Journal of Hydrogen Energy}, publisher={Elsevier BV}, author={Genovese, Matteo and Schlüter, Alexander and Scionti, Eugenio and Piraino, Francesco and Corigliano, Orlando and Fragiacomo, Petronilla}, year={2023}, pages={16545–16568} }' chicago: 'Genovese, Matteo, Alexander Schlüter, Eugenio Scionti, Francesco Piraino, Orlando Corigliano, and Petronilla Fragiacomo. “Power-to-Hydrogen and Hydrogen-to-X Energy Systems for the Industry of the Future in Europe.” International Journal of Hydrogen Energy 48, no. 44 (2023): 16545–68. https://doi.org/10.1016/j.ijhydene.2023.01.194.' ieee: 'M. Genovese, A. Schlüter, E. Scionti, F. Piraino, O. Corigliano, and P. Fragiacomo, “Power-to-hydrogen and hydrogen-to-X energy systems for the industry of the future in Europe,” International Journal of Hydrogen Energy, vol. 48, no. 44, pp. 16545–16568, 2023, doi: 10.1016/j.ijhydene.2023.01.194.' mla: Genovese, Matteo, et al. “Power-to-Hydrogen and Hydrogen-to-X Energy Systems for the Industry of the Future in Europe.” International Journal of Hydrogen Energy, vol. 48, no. 44, Elsevier BV, 2023, pp. 16545–68, doi:10.1016/j.ijhydene.2023.01.194. short: M. Genovese, A. Schlüter, E. Scionti, F. Piraino, O. Corigliano, P. Fragiacomo, International Journal of Hydrogen Energy 48 (2023) 16545–16568. date_created: 2024-02-29T09:47:57Z date_updated: 2024-03-08T19:49:10Z department: - _id: '9' - _id: '876' doi: 10.1016/j.ijhydene.2023.01.194 intvolume: ' 48' issue: '44' keyword: - Hydrogen economy - Green hydrogen - Power-to-X - Hydrogen-to-X - Sector coupling language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1016/j.ijhydene.2023.01.194 oa: '1' page: 16545-16568 publication: International Journal of Hydrogen Energy publication_identifier: issn: - 0360-3199 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Power-to-hydrogen and hydrogen-to-X energy systems for the industry of the future in Europe type: journal_article user_id: '103302' volume: 48 year: '2023' ... --- _id: '31849' author: - first_name: Max full_name: Hoffmann, Max id: '32202' last_name: Hoffmann orcid: 0000-0002-6964-7123 - first_name: Rolf full_name: Biehler, Rolf id: '16274' last_name: Biehler citation: ama: 'Hoffmann M, Biehler R. Student Teachers ’ Knowledge of Congruence before a University Course on Geometry. In: Trigueros M, Barquero B, Hochmuth R, Peters J, eds. Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022). University of Hannover and INDRUM.; 2023.' apa: Hoffmann, M., & Biehler, R. (2023). Student Teachers ’ Knowledge of Congruence before a University Course on Geometry. In M. Trigueros, B. Barquero, R. Hochmuth, & J. Peters (Eds.), Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022). University of Hannover and INDRUM. bibtex: '@inproceedings{Hoffmann_Biehler_2023, place={Hannover}, title={Student Teachers ’ Knowledge of Congruence before a University Course on Geometry}, booktitle={Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)}, publisher={University of Hannover and INDRUM.}, author={Hoffmann, Max and Biehler, Rolf}, editor={Trigueros, Marı́a and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}, year={2023} }' chicago: 'Hoffmann, Max, and Rolf Biehler. “Student Teachers ’ Knowledge of Congruence before a University Course on Geometry.” In Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022), edited by Marı́a Trigueros, Berta Barquero, Reinhard Hochmuth, and Jana Peters. Hannover: University of Hannover and INDRUM., 2023.' ieee: M. Hoffmann and R. Biehler, “Student Teachers ’ Knowledge of Congruence before a University Course on Geometry,” in Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022), 2023. mla: Hoffmann, Max, and Rolf Biehler. “Student Teachers ’ Knowledge of Congruence before a University Course on Geometry.” Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022), edited by Marı́a Trigueros et al., University of Hannover and INDRUM., 2023. short: 'M. Hoffmann, R. Biehler, in: M. Trigueros, B. Barquero, R. Hochmuth, J. Peters (Eds.), Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022), University of Hannover and INDRUM., Hannover, 2023.' date_created: 2022-06-12T11:07:34Z date_updated: 2023-03-25T10:11:35Z ddc: - '370' - '510' department: - _id: '97' editor: - first_name: Marı́a full_name: Trigueros, Marı́a last_name: Trigueros - first_name: Berta full_name: Barquero, Berta last_name: Barquero - first_name: Reinhard full_name: Hochmuth, Reinhard last_name: Hochmuth - first_name: Jana full_name: Peters, Jana last_name: Peters file: - access_level: closed content_type: application/pdf creator: maxh date_created: 2023-03-25T10:01:03Z date_updated: 2023-03-25T10:01:03Z file_id: '43096' file_name: HoffmannBiehler2022_indrum_congruence.pdf file_size: 201942 relation: main_file success: 1 file_date_updated: 2023-03-25T10:01:03Z has_accepted_license: '1' keyword: - Teaching and learning of specific topics in university mathematics - Transition to - across and from university mathematics - Student Teachers - Geometry - Congruence - Double Discontinuity. language: - iso: eng main_file_link: - open_access: '1' url: https://hal.univ-reims.fr/INDRUM2022/ oa: '1' place: Hannover publication: Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022) publication_status: published publisher: University of Hannover and INDRUM. quality_controlled: '1' status: public title: Student Teachers ’ Knowledge of Congruence before a University Course on Geometry type: conference user_id: '32202' year: '2023' ... --- _id: '45812' author: - first_name: Leon full_name: Özcan, Leon id: '45137' last_name: Özcan - first_name: Timm full_name: Fichtler, Timm id: '66731' last_name: Fichtler orcid: https://orcid.org/0000-0001-6034-4399 - first_name: Benjamin full_name: Kasten, Benjamin last_name: Kasten - first_name: Christian full_name: Koldewey, Christian id: '43136' last_name: Koldewey orcid: https://orcid.org/0000-0001-7992-6399 - first_name: Roman full_name: Dumitrescu, Roman id: '16190' last_name: Dumitrescu citation: ama: 'Özcan L, Fichtler T, Kasten B, Koldewey C, Dumitrescu R. Interview Study on Strategy Options for Platform Operation in B2B Markets. In: ; 2023.' apa: Özcan, L., Fichtler, T., Kasten, B., Koldewey, C., & Dumitrescu, R. (2023). Interview Study on Strategy Options for Platform Operation in B2B Markets. ISPIM Innovation Conference, Ljubljana. bibtex: '@inproceedings{Özcan_Fichtler_Kasten_Koldewey_Dumitrescu_2023, title={Interview Study on Strategy Options for Platform Operation in B2B Markets}, author={Özcan, Leon and Fichtler, Timm and Kasten, Benjamin and Koldewey, Christian and Dumitrescu, Roman}, year={2023} }' chicago: Özcan, Leon, Timm Fichtler, Benjamin Kasten, Christian Koldewey, and Roman Dumitrescu. “Interview Study on Strategy Options for Platform Operation in B2B Markets,” 2023. ieee: L. Özcan, T. Fichtler, B. Kasten, C. Koldewey, and R. Dumitrescu, “Interview Study on Strategy Options for Platform Operation in B2B Markets,” presented at the ISPIM Innovation Conference, Ljubljana, 2023. mla: Özcan, Leon, et al. Interview Study on Strategy Options for Platform Operation in B2B Markets. 2023. short: 'L. Özcan, T. Fichtler, B. Kasten, C. Koldewey, R. Dumitrescu, in: 2023.' conference: location: Ljubljana name: ISPIM Innovation Conference date_created: 2023-06-28T11:18:12Z date_updated: 2023-06-28T11:18:31Z department: - _id: '563' keyword: - Digital Platform - Platform Strategy - Strategic Management - Platform Life Cycle - Interview Study - Business Model - Business-to-Business - Two-sided Market - Multi-sided Market language: - iso: eng status: public title: Interview Study on Strategy Options for Platform Operation in B2B Markets type: conference user_id: '66731' year: '2023' ... --- _id: '51142' author: - first_name: Orlando full_name: Massopo, Orlando id: '98419' last_name: Massopo - first_name: Ricardo full_name: Tischendorf, Ricardo id: '67002' last_name: Tischendorf - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid orcid: 000-0001-8590-1921 - first_name: Fabian full_name: Fröde, Fabian last_name: Fröde - first_name: Heinz full_name: Pitsch, Heinz last_name: Pitsch - first_name: Manuel full_name: Reddemann, Manuel last_name: Reddemann - first_name: Temistocle full_name: Grenga, Temistocle last_name: Grenga - first_name: Reinhold full_name: Kneer, Reinhold last_name: Kneer citation: ama: 'Massopo O, Tischendorf R, Schmid H-J, et al. Einfluss der Zerstäubung auf diePartikelbildung bei der Sprayflammenpyrolyse (Vortrag). In: Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik; 2023.' apa: Massopo, O., Tischendorf, R., Schmid, H.-J., Fröde, F., Pitsch, H., Reddemann, M., Grenga, T., & Kneer, R. (2023). Einfluss der Zerstäubung auf diePartikelbildung bei der Sprayflammenpyrolyse (Vortrag). Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik, Paderborn. bibtex: '@inproceedings{Massopo_Tischendorf_Schmid_Fröde_Pitsch_Reddemann_Grenga_Kneer_2023, place={Paderborn}, title={Einfluss der Zerstäubung auf diePartikelbildung bei der Sprayflammenpyrolyse (Vortrag)}, publisher={Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik}, author={Massopo, Orlando and Tischendorf, Ricardo and Schmid, Hans-Joachim and Fröde, Fabian and Pitsch, Heinz and Reddemann, Manuel and Grenga, Temistocle and Kneer, Reinhold}, year={2023} }' chicago: 'Massopo, Orlando, Ricardo Tischendorf, Hans-Joachim Schmid, Fabian Fröde, Heinz Pitsch, Manuel Reddemann, Temistocle Grenga, and Reinhold Kneer. “Einfluss Der Zerstäubung Auf DiePartikelbildung Bei Der Sprayflammenpyrolyse (Vortrag).” Paderborn: Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik, 2023.' ieee: O. Massopo et al., “Einfluss der Zerstäubung auf diePartikelbildung bei der Sprayflammenpyrolyse (Vortrag),” presented at the Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik, Paderborn, 2023. mla: Massopo, Orlando, et al. Einfluss Der Zerstäubung Auf DiePartikelbildung Bei Der Sprayflammenpyrolyse (Vortrag). Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik, 2023. short: 'O. Massopo, R. Tischendorf, H.-J. Schmid, F. Fröde, H. Pitsch, M. Reddemann, T. Grenga, R. Kneer, in: Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik, Paderborn, 2023.' conference: end_date: 2023-03-30 location: Paderborn name: Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik start_date: 2023-03-28 date_created: 2024-02-05T12:37:04Z date_updated: 2025-09-18T11:16:36Z department: - _id: '150' keyword: - SpraySyn - Flammenspraypyrolyse - Maghemite Nanopartikel - Gas to particle-Syntheseweg - Probennahme - Verunreinigung language: - iso: eng place: Paderborn publisher: Jahrestreffen der DECHEMA-Fachgruppen Aerosoltechnik, Gasreinigung, Mehrphasenströmung und Partikelmesstechnik status: public title: Einfluss der Zerstäubung auf diePartikelbildung bei der Sprayflammenpyrolyse (Vortrag) type: conference_abstract user_id: '98419' year: '2023' ... --- _id: '30913' abstract: - lang: eng text: "Context: The implementation of successful measures to support immigrants' integration in cultural, social, and economic life can be considered as one of today's greatest challenges for many societies. This is especially true for adolescent immigrants who have not yet been able to finish education or gain qualifications relevant to joining the labour market. That is why many receiving countries have developed and implemented special programmes that aim at supporting immigrants' integration by facilitating their employability. Unfortunately, not much is known about the process of implementing these programmes or about how education systems, schools, and teachers are dealing with the new situation and target group. In this contribution, the implementation, development, and challenges of German Vocational Integration Classes (VIC), as an example of comparable programmes in the EU, are investigated to address this research gap. The paper considers the following exploratory research questions: (a) What challenges have been experienced by teachers and social workers in the implementation of VIC as well as in the integration of immigrants into the labour market in recent years? (b) How can these challenges be met in the long run and how should VIC be developed to better achieve its aims? \r\n\r\nMethods: To answer these questions, a sequential qualitative study containing questionnaire and interview elements was conducted. First, teachers and social workers involved in VIC filled in a questionnaire about their experiences and experienced challenges in implementing VIC (N = 46). Then, supplementing interviews were conducted with participants from the first sample in order to generate further insights and to contextualise the findings from the first study part (N = 14). \r\n\r\nFindings: From the respondents' answers, it appears that the VIC programme is well implemented. The results show, however, that central challenges continue to exist. This concerns, for example, legal regulations or the development of adequate curricula, but also the scope and quality of language education. In addition, problems have also been identified with regard to students' culture-specific education and their individual attitudes. These prevailing problems seem to affect schooling and educational processes. In addition, respondents report feeling left alone to deal with problems and that their experiences from their daily work in VIC and with immigrants are not sufficiently taken into account in policy and school-related decisions. \r\n\r\nConclusions: Although VIC seems well implemented, key challenges remain in the view of the participants. It was found that teachers cannot solve many of the identified problems themselves, as they require action at the level of policy or school organisation. For staff, this can be accompanied by increased stress and demotivation. For the young immigrants, the existing challenges can have a long-term impact on school success and transition to vocational education and training. The study thus highlights the importance of targeted and holistic strategies to support immigrant integration through education. " article_type: original author: - first_name: Michael full_name: Goller, Michael id: '30984' last_name: Goller orcid: 0000-0002-2820-9178 citation: ama: Goller M. Supporting Young Immigrants in Their Transition From School to Work? A Staff Perspective on Challenges of Vocational Integration Classes. International Journal for Research in Vocational Education and Training. 2022;9(1):92-119. doi:https://doi.org/10.13152/IJRVET.9.1.5 apa: Goller, M. (2022). Supporting Young Immigrants in Their Transition From School to Work? A Staff Perspective on Challenges of Vocational Integration Classes. International Journal for Research in Vocational Education and Training, 9(1), 92–119. https://doi.org/10.13152/IJRVET.9.1.5 bibtex: '@article{Goller_2022, title={Supporting Young Immigrants in Their Transition From School to Work? A Staff Perspective on Challenges of Vocational Integration Classes}, volume={9}, DOI={https://doi.org/10.13152/IJRVET.9.1.5}, number={1}, journal={International Journal for Research in Vocational Education and Training}, author={Goller, Michael}, year={2022}, pages={92–119} }' chicago: 'Goller, Michael. “Supporting Young Immigrants in Their Transition From School to Work? A Staff Perspective on Challenges of Vocational Integration Classes.” International Journal for Research in Vocational Education and Training 9, no. 1 (2022): 92–119. https://doi.org/10.13152/IJRVET.9.1.5.' ieee: 'M. Goller, “Supporting Young Immigrants in Their Transition From School to Work? A Staff Perspective on Challenges of Vocational Integration Classes,” International Journal for Research in Vocational Education and Training, vol. 9, no. 1, pp. 92–119, 2022, doi: https://doi.org/10.13152/IJRVET.9.1.5.' mla: Goller, Michael. “Supporting Young Immigrants in Their Transition From School to Work? A Staff Perspective on Challenges of Vocational Integration Classes.” International Journal for Research in Vocational Education and Training, vol. 9, no. 1, 2022, pp. 92–119, doi:https://doi.org/10.13152/IJRVET.9.1.5. short: M. Goller, International Journal for Research in Vocational Education and Training 9 (2022) 92–119. date_created: 2022-04-19T09:01:26Z date_updated: 2022-04-19T09:01:49Z department: - _id: '452' doi: https://doi.org/10.13152/IJRVET.9.1.5 intvolume: ' 9' issue: '1' keyword: - Immigration - Educational Policy - Employability - Mixed Methods - VET - Vocational Education and Training - Transitions From Education and Training to Employment language: - iso: eng page: 92-119 publication: International Journal for Research in Vocational Education and Training status: public title: Supporting Young Immigrants in Their Transition From School to Work? A Staff Perspective on Challenges of Vocational Integration Classes type: journal_article user_id: '50788' volume: 9 year: '2022' ... --- _id: '33991' abstract: - lang: eng text: In the course of digitalization, digital platforms are unleashing their full disruptive potential and are already dominating the first industries (e.g., hotel industry). As a result of this success, more and more companies want to build their own platforms and participate in the success. However, building and operating a digital platform involves multiple challenges and most of such ambitions fail. Since most digital platforms fail, strategic leadership of digital platforms must consider both success factors and reasons for platform failure. For this purpose, we conducted a systematic literature analysis and identified 24 success as well as failure factors in 9 dimensions. From a scientific perspective, the article provides a structured analysis of success and failure factors of digital platforms, which previously did not exist in literature. Practitioners can use the resulting knowledge base to successfully manage platform activities and avoid pitfalls. author: - first_name: Leon full_name: Özcan, Leon id: '45137' last_name: Özcan - first_name: Christian full_name: Koldewey, Christian last_name: Koldewey - first_name: Estelle full_name: Duparc, Estelle last_name: Duparc - first_name: Hendrik full_name: van der Valk, Hendrik last_name: van der Valk - first_name: Boris full_name: Otto, Boris last_name: Otto - first_name: Roman full_name: Dumitrescu, Roman last_name: Dumitrescu citation: ama: 'Özcan L, Koldewey C, Duparc E, van der Valk H, Otto B, Dumitrescu R. Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors. In: ; 2022.' apa: Özcan, L., Koldewey, C., Duparc, E., van der Valk, H., Otto, B., & Dumitrescu, R. (2022). Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors. 28th Americas Conference on Information Systems (AMCIS), Minneapolis. bibtex: '@inproceedings{Özcan_Koldewey_Duparc_van der Valk_Otto_Dumitrescu_2022, title={Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors}, author={Özcan, Leon and Koldewey, Christian and Duparc, Estelle and van der Valk, Hendrik and Otto, Boris and Dumitrescu, Roman}, year={2022} }' chicago: Özcan, Leon, Christian Koldewey, Estelle Duparc, Hendrik van der Valk, Boris Otto, and Roman Dumitrescu. “Why Do Digital Platforms Succeed or Fail? - A Literature Review on Success and Failure Factors,” 2022. ieee: L. Özcan, C. Koldewey, E. Duparc, H. van der Valk, B. Otto, and R. Dumitrescu, “Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors,” presented at the 28th Americas Conference on Information Systems (AMCIS), Minneapolis, 2022. mla: Özcan, Leon, et al. Why Do Digital Platforms Succeed or Fail? - A Literature Review on Success and Failure Factors. 2022. short: 'L. Özcan, C. Koldewey, E. Duparc, H. van der Valk, B. Otto, R. Dumitrescu, in: 2022.' conference: location: Minneapolis name: 28th Americas Conference on Information Systems (AMCIS) date_created: 2022-11-03T23:11:13Z date_updated: 2022-11-03T23:14:33Z ddc: - '600' department: - _id: '563' file: - access_level: closed content_type: application/pdf creator: loezcan date_created: 2022-11-03T23:07:27Z date_updated: 2022-11-03T23:07:27Z file_id: '33993' file_name: '[ÖKD+22]_Why do Digital Platforms succeed or fail - A Literature Review on Success and Failure Factors.pdf' file_size: 301409 relation: main_file success: 1 file_date_updated: 2022-11-03T23:07:27Z has_accepted_license: '1' keyword: - Digital Platform - Multi-sided Market - Two-sided Market - Success Factor - Failure Factor language: - iso: eng main_file_link: - url: https://aisel.aisnet.org/amcis2022/sig_dite/sig_dite/15/ status: public title: Why do Digital Platforms succeed or fail? - A Literature Review on Success and Failure Factors type: conference user_id: '45137' year: '2022' ... --- _id: '27652' abstract: - lang: ger text: "Aufgrund der Fortschritte der Digitalisierung finden Systeme zur Zustandsüberwachung vermehrt Einsatz in der Industrie, um durch eine zustandsbasierte oder eine prädiktive Instandhaltung Vorteile, wie eine verbesserte Zuverlässigkeit und geringere Kosten zu erzielen. Dabei beruhen Zustandsüberwachungssysteme auf den folgenden Bausteinen: Sensorik, Datenvorverarbeitung, Merkmalsextraktion und -auswahl, Diagnose bzw. Prognose sowie einer Entscheidungsfindung basierend auf den Ergebnissen. Jeder dieser Bausteine erfordert individuelle Einstellungen, um ein geeignetes Zustandsüberwachungssystem für die jeweilige Anwendung zu entwickeln. Eine offene Fragestellung im Bereich der Zustandsüberwachung ergibt sich aufgrund der Unsicherheit der Zukunft, die sich in den zukünftigen Betriebs- und Umgebungsbedingungen zeigt. Diese Unsicherheit gilt es in allen Bausteinen zu berücksichtigen.\r\nDieser Beitrag konzentriert sich auf den Baustein Merkmalsextraktion und -selektion, mit dem Ziel anhand geeigneter Merkmale eine Prognose der nutzbaren Restlebensdauer mit hoher Genauigkeit realisieren zu können. Daher werden geeignete Merkmale aus dem Zeitbereich und daraus abgeleitete Zustandsindikatoren für die Restlebensdauerprognose von technischen Systemen vorgestellt. Dabei sind Zustandsindikatoren Kenngrößen zur Beobachtung des Zustands der kritischen Systemkomponenten. Anhand dreier Anwendungsbeispiele wird ihre Eignung evaluiert. Dabei werden Daten aus Lebensdauerversuchen unter instationären Betriebs- und Umgebungsbedingungen ausgewertet. Die auftretenden Unsicherheiten der Zukunft werden somit berücksichtigt. Die Beispielsysteme beruhen auf Gummi-Metall-Elementen und Wälzlagern. Aus den generierten Ergebnissen lässt sich schließen, dass die Zustandsindikatoren aus der betrachteten Zeitreihen-Toolbox auch unter unbekannten Betriebs- und Umgebungsbedingungen robust sind.\r\n" - lang: eng text: "Due to the advances in digitalization, condition monitoring systems have found numerous applications in the industry due to benefits such as improved reliability and lowered costs through condition-based or predictive maintenance. Condition monitoring systems typically involve elements, such as data acquisition via suitable sensors, data preprocessing, feature extraction and selection, diagnostics, prognostics and (maintenance) decisions based on diagnosis or prognosis. For the application-specific development of a suitable condition monitoring system, each of these elements requires individual settings. Due to the uncertainty of the future, an open question arises in the condition monitoring field, which is reflected in unknown future operating and environmental conditions. This uncertainty needs consideration in all elements of a condition monitoring system.\r\nThis article focuses on feature extraction and selection, building on the hypothesis that the remaining useful life of a technical system can be predicted with high accuracy utilizing suitable features. In this article, health indicators derived from time-domain features that permit the monitoring of the health of critical system components are presented for predicting the remaining useful life of technical systems. Three distinct application examples based on rubber-metal elements and rolling-element bearings are evaluated to validate the suitability of the presented methods. Experimental data from accelerated lifetime tests conducted under non-stationary operating and environmental conditions are considered to take possible future uncertainties into account. It can be concluded from the acquired results that health indicators derived from the presented time series toolbox are robust to varying operating and environmental conditions.\r\n" author: - first_name: Osarenren Kennedy full_name: Aimiyekagbon, Osarenren Kennedy id: '9557' last_name: Aimiyekagbon - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Aimiyekagbon OK, Bender A, Sextro W. Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten . In: VDI-Berichte 2391. VDI Verlag GmbH; 2021:197-210.' apa: Aimiyekagbon, O. K., Bender, A., & Sextro, W. (2021). Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten . VDI-Berichte 2391, 197–210. bibtex: '@inproceedings{Aimiyekagbon_Bender_Sextro_2021, place={Düsseldorf}, title={Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten }, booktitle={VDI-Berichte 2391}, publisher={VDI Verlag GmbH}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Sextro, Walter}, year={2021}, pages={197–210} }' chicago: 'Aimiyekagbon, Osarenren Kennedy, Amelie Bender, and Walter Sextro. “Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten .” In VDI-Berichte 2391, 197–210. Düsseldorf: VDI Verlag GmbH, 2021.' ieee: O. K. Aimiyekagbon, A. Bender, and W. Sextro, “Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten ,” in VDI-Berichte 2391, Würzburg, 2021, pp. 197–210. mla: Aimiyekagbon, Osarenren Kennedy, et al. “Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten .” VDI-Berichte 2391, VDI Verlag GmbH, 2021, pp. 197–210. short: 'O.K. Aimiyekagbon, A. Bender, W. Sextro, in: VDI-Berichte 2391, VDI Verlag GmbH, Düsseldorf, 2021, pp. 197–210.' conference: end_date: 2021-11-17 location: Würzburg name: '3. VDI-Fachtagung ' start_date: 2021-11-16 date_created: 2021-11-22T07:42:44Z date_updated: 2022-01-06T06:57:43Z department: - _id: '151' keyword: - run-to-failure - rubber-metal element - bearing prognostics - non-stationary operating conditions - varying operating conditions - feature extraction - feature selection language: - iso: ger page: 197 - 210 place: Düsseldorf publication: VDI-Berichte 2391 publication_identifier: isbn: - 978-3-18-092391-8 issn: - '0083-5560 ' publication_status: published publisher: VDI Verlag GmbH status: public title: 'Extraktion und Selektion geeigneter Merkmale für die Restlebensdauerprognose von technischen Systemen trotz aleatorischen Unsicherheiten ' type: conference user_id: '9557' year: '2021' ... --- _id: '22523' abstract: - lang: eng text: The containment of COVID-19 critically hinges on individuals’ behavior. We investigate how individuals react to variations in COVID-19 reporting. Using a survey, we elicit individuals' perceived infection risk given various COVID-19 metrics (e.g., confirmed cases, reproduction rate, or case-fatality ratio). We proxy individuals' risk perception with their willingness to pay for the participation in everyday life and amusements events. We find that participants react to different COVID-19 metrics with varying sensitivity. We observe a saturation of sensitivity for several measures at critical limits used in the political discussion, making our results highly relevant for policy makers in their efforts to direct individuals to adhere to hygienic etiquette and social distancing guidelines. article_type: original author: - first_name: Sonja full_name: Warkulat, Sonja id: '67243' last_name: Warkulat - first_name: Sebastian full_name: Krull, Sebastian id: '84497' last_name: Krull - first_name: Regina full_name: Ortmann, Regina id: '10020' last_name: Ortmann - first_name: Nina full_name: Klocke, Nina id: '51025' last_name: Klocke - first_name: Matthias full_name: Pelster, Matthias id: '67265' last_name: Pelster orcid: ' https://orcid.org/0000-0001-5740-2420' citation: ama: Warkulat S, Krull S, Ortmann R, Klocke N, Pelster M. COVID-19 reporting and willingness to pay for leisure activities. Covid Economics. 2021;(83):183-205. apa: Warkulat, S., Krull, S., Ortmann, R., Klocke, N., & Pelster, M. (2021). COVID-19 reporting and willingness to pay for leisure activities. Covid Economics, 83, 183–205. bibtex: '@article{Warkulat_Krull_Ortmann_Klocke_Pelster_2021, title={COVID-19 reporting and willingness to pay for leisure activities}, number={83}, journal={Covid Economics}, publisher={CEPR Press}, author={Warkulat, Sonja and Krull, Sebastian and Ortmann, Regina and Klocke, Nina and Pelster, Matthias}, year={2021}, pages={183–205} }' chicago: 'Warkulat, Sonja, Sebastian Krull, Regina Ortmann, Nina Klocke, and Matthias Pelster. “COVID-19 Reporting and Willingness to Pay for Leisure Activities.” Covid Economics, no. 83 (2021): 183–205.' ieee: S. Warkulat, S. Krull, R. Ortmann, N. Klocke, and M. Pelster, “COVID-19 reporting and willingness to pay for leisure activities,” Covid Economics, no. 83, pp. 183–205, 2021. mla: Warkulat, Sonja, et al. “COVID-19 Reporting and Willingness to Pay for Leisure Activities.” Covid Economics, no. 83, CEPR Press, 2021, pp. 183–205. short: S. Warkulat, S. Krull, R. Ortmann, N. Klocke, M. Pelster, Covid Economics (2021) 183–205. date_created: 2021-07-02T09:30:36Z date_updated: 2022-01-06T06:55:36Z department: - _id: '186' - _id: '578' funded_apc: '1' issue: '83' jel: - I10 - I12 - I18 keyword: - COVID-19 reporting - willingness to pay - willingness to accept language: - iso: eng main_file_link: - open_access: '1' url: https://cepr.org/file/11142/download?token=wXdlx51o oa: '1' page: 183-205 publication: Covid Economics publisher: CEPR Press quality_controlled: '1' status: public title: COVID-19 reporting and willingness to pay for leisure activities type: journal_article user_id: '67265' year: '2021' ... --- _id: '27381' abstract: - lang: eng text: Graph neural networks (GNNs) have been successfully applied in many structured data domains, with applications ranging from molecular property prediction to the analysis of social networks. Motivated by the broad applicability of GNNs, we propose the family of so-called RankGNNs, a combination of neural Learning to Rank (LtR) methods and GNNs. RankGNNs are trained with a set of pair-wise preferences between graphs, suggesting that one of them is preferred over the other. One practical application of this problem is drug screening, where an expert wants to find the most promising molecules in a large collection of drug candidates. We empirically demonstrate that our proposed pair-wise RankGNN approach either significantly outperforms or at least matches the ranking performance of the naive point-wise baseline approach, in which the LtR problem is solved via GNN-based graph regression. author: - first_name: Clemens full_name: Damke, Clemens id: '48192' last_name: Damke orcid: 0000-0002-0455-0048 - first_name: Eyke full_name: Hüllermeier, Eyke id: '48129' last_name: Hüllermeier citation: ama: 'Damke C, Hüllermeier E. Ranking Structured Objects with Graph Neural Networks. In: Soares C, Torgo L, eds. Proceedings of The 24th International Conference on Discovery Science (DS 2021). Vol 12986. Lecture Notes in Computer Science. Springer; 2021:166-180. doi:10.1007/978-3-030-88942-5' apa: Damke, C., & Hüllermeier, E. (2021). Ranking Structured Objects with Graph Neural Networks. In C. Soares & L. Torgo (Eds.), Proceedings of The 24th International Conference on Discovery Science (DS 2021) (Vol. 12986, pp. 166–180). Springer. https://doi.org/10.1007/978-3-030-88942-5 bibtex: '@inproceedings{Damke_Hüllermeier_2021, series={Lecture Notes in Computer Science}, title={Ranking Structured Objects with Graph Neural Networks}, volume={12986}, DOI={10.1007/978-3-030-88942-5}, booktitle={Proceedings of The 24th International Conference on Discovery Science (DS 2021)}, publisher={Springer}, author={Damke, Clemens and Hüllermeier, Eyke}, editor={Soares, Carlos and Torgo, Luis}, year={2021}, pages={166–180}, collection={Lecture Notes in Computer Science} }' chicago: Damke, Clemens, and Eyke Hüllermeier. “Ranking Structured Objects with Graph Neural Networks.” In Proceedings of The 24th International Conference on Discovery Science (DS 2021), edited by Carlos Soares and Luis Torgo, 12986:166–80. Lecture Notes in Computer Science. Springer, 2021. https://doi.org/10.1007/978-3-030-88942-5. ieee: 'C. Damke and E. Hüllermeier, “Ranking Structured Objects with Graph Neural Networks,” in Proceedings of The 24th International Conference on Discovery Science (DS 2021), Halifax, Canada, 2021, vol. 12986, pp. 166–180, doi: 10.1007/978-3-030-88942-5.' mla: Damke, Clemens, and Eyke Hüllermeier. “Ranking Structured Objects with Graph Neural Networks.” Proceedings of The 24th International Conference on Discovery Science (DS 2021), edited by Carlos Soares and Luis Torgo, vol. 12986, Springer, 2021, pp. 166–80, doi:10.1007/978-3-030-88942-5. short: 'C. Damke, E. Hüllermeier, in: C. Soares, L. Torgo (Eds.), Proceedings of The 24th International Conference on Discovery Science (DS 2021), Springer, 2021, pp. 166–180.' conference: end_date: 2021-10-13 location: Halifax, Canada name: 24th International Conference on Discovery Science start_date: 2021-10-11 date_created: 2021-11-11T14:15:18Z date_updated: 2022-04-11T22:08:12Z department: - _id: '355' doi: 10.1007/978-3-030-88942-5 editor: - first_name: Carlos full_name: Soares, Carlos last_name: Soares - first_name: Luis full_name: Torgo, Luis last_name: Torgo external_id: arxiv: - '2104.08869' intvolume: ' 12986' keyword: - Graph-structured data - Graph neural networks - Preference learning - Learning to rank language: - iso: eng page: 166-180 publication: Proceedings of The 24th International Conference on Discovery Science (DS 2021) publication_identifier: isbn: - '9783030889418' - '9783030889425' issn: - 0302-9743 - 1611-3349 publication_status: published publisher: Springer quality_controlled: '1' series_title: Lecture Notes in Computer Science status: public title: Ranking Structured Objects with Graph Neural Networks type: conference user_id: '48192' volume: 12986 year: '2021' ... --- _id: '17860' abstract: - lang: eng text: "Purpose\r\nThe purpose of this paper is to identify strategic options and challenges that arise when an industrial firm moves from providing smart service toward providing a platform.\r\n\r\nDesign/methodology/approach\r\nThis conceptual study takes on a multidisciplinary research perspective that integrates concepts, theories and insights from service management and marketing, information systems and platform economics.\r\n\r\nFindings\r\nThe paper outlines three platform types – smart data platform, smart product platform and matching platform – as strategic options for firms that wish to evolve from smart service providers to platform providers.\r\n\r\nResearch limitations/implications\r\nInvestigating smart service platforms calls for launching interdisciplinary research initiatives. Promising research avenues are outlined to span boundaries that separate different research disciplines today.\r\n\r\nPractical implications\r\nManaging a successful transition from providing smart service toward providing a platform requires making significant investments in IT, platform-related capabilities and skills, as well as implement new approaches toward relationship management and brand-building.\r\n\r\nOriginality/value\r\nThe findings described in this paper are valuable to researchers in multiple disciplines seeking to develop and to justify theory related to platforms in industrial scenarios." article_type: original author: - first_name: Daniel full_name: Beverungen, Daniel id: '59677' last_name: Beverungen - first_name: Dennis full_name: Kundisch, Dennis id: '21117' last_name: Kundisch - first_name: Nancy full_name: Wünderlich, Nancy id: '36392' last_name: Wünderlich citation: ama: 'Beverungen D, Kundisch D, Wünderlich N. Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers. Journal of Service Management. 2021;32(4):507-532. doi:10.1108/JOSM-03-2020-0066' apa: 'Beverungen, D., Kundisch, D., & Wünderlich, N. (2021). Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers. Journal of Service Management, 32(4), 507–532. https://doi.org/10.1108/JOSM-03-2020-0066' bibtex: '@article{Beverungen_Kundisch_Wünderlich_2021, title={Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers}, volume={32}, DOI={10.1108/JOSM-03-2020-0066}, number={4}, journal={Journal of Service Management}, publisher={Emerald Insight}, author={Beverungen, Daniel and Kundisch, Dennis and Wünderlich, Nancy}, year={2021}, pages={507–532} }' chicago: 'Beverungen, Daniel, Dennis Kundisch, and Nancy Wünderlich. “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers.” Journal of Service Management 32, no. 4 (2021): 507–32. https://doi.org/10.1108/JOSM-03-2020-0066.' ieee: 'D. Beverungen, D. Kundisch, and N. Wünderlich, “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers,” Journal of Service Management, vol. 32, no. 4, pp. 507–532, 2021, doi: 10.1108/JOSM-03-2020-0066.' mla: 'Beverungen, Daniel, et al. “Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers.” Journal of Service Management, vol. 32, no. 4, Emerald Insight, 2021, pp. 507–32, doi:10.1108/JOSM-03-2020-0066.' short: D. Beverungen, D. Kundisch, N. Wünderlich, Journal of Service Management 32 (2021) 507–532. date_created: 2020-08-12T12:12:36Z date_updated: 2024-04-18T12:46:37Z ddc: - '380' department: - _id: '276' - _id: '181' doi: 10.1108/JOSM-03-2020-0066 intvolume: ' 32' issue: '4' keyword: - Smart service - Platform - Interdisciplinary research - Manufacturing company - Smart service provider - Platform economics - Information systems - Multi-sided markets - Business-to-business (B2B) markets language: - iso: eng page: 507-532 project: - _id: '1' grant_number: '160364472' name: SFB 901 - _id: '4' name: SFB 901 - Project Area C - _id: '17' name: SFB 901 - Subproject C5 publication: Journal of Service Management publication_identifier: issn: - 507-532 publication_status: published publisher: Emerald Insight quality_controlled: '1' status: public title: 'Transforming into a Platform Provider: Strategic Options for Industrial Smart Service Providers' type: journal_article user_id: '59677' volume: 32 year: '2021' ... --- _id: '29203' abstract: - lang: eng text: We present a monolithically integrated electronic-photonic Mach-Zehnder modulator with a linear, segmented driver on the same silicon substrate. As metric for the modulation efficiency, the external V$\pi$ is hereby reduced to only 420 mV. author: - first_name: Christian full_name: Kress, Christian id: '13256' last_name: Kress - first_name: Karanveer full_name: Singh, Karanveer last_name: Singh - first_name: Tobias full_name: Schwabe, Tobias id: '39217' last_name: Schwabe - first_name: Stefan full_name: Preußler, Stefan last_name: Preußler - first_name: Thomas full_name: Schneider, Thomas last_name: Schneider - first_name: J. Christoph full_name: Scheytt, J. Christoph id: '37144' last_name: Scheytt orcid: https://orcid.org/0000-0002-5950-6618 citation: ama: 'Kress C, Singh K, Schwabe T, Preußler S, Schneider T, Scheytt JC. High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \textmum BiCMOS Technology. In: OSA Advanced Photonics Congress 2021. Optical Society of America; 2021:IW1B.1. doi:10.1364/IPRSN.2021.IW1B.1' apa: Kress, C., Singh, K., Schwabe, T., Preußler, S., Schneider, T., & Scheytt, J. C. (2021). High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \textmum BiCMOS Technology. OSA Advanced Photonics Congress 2021, IW1B.1. https://doi.org/10.1364/IPRSN.2021.IW1B.1 bibtex: '@inproceedings{Kress_Singh_Schwabe_Preußler_Schneider_Scheytt_2021, title={High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \textmum BiCMOS Technology}, DOI={10.1364/IPRSN.2021.IW1B.1}, booktitle={OSA Advanced Photonics Congress 2021}, publisher={Optical Society of America}, author={Kress, Christian and Singh, Karanveer and Schwabe, Tobias and Preußler, Stefan and Schneider, Thomas and Scheytt, J. Christoph}, year={2021}, pages={IW1B.1} }' chicago: Kress, Christian, Karanveer Singh, Tobias Schwabe, Stefan Preußler, Thomas Schneider, and J. Christoph Scheytt. “High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \textmum BiCMOS Technology.” In OSA Advanced Photonics Congress 2021, IW1B.1. Optical Society of America, 2021. https://doi.org/10.1364/IPRSN.2021.IW1B.1. ieee: 'C. Kress, K. Singh, T. Schwabe, S. Preußler, T. Schneider, and J. C. Scheytt, “High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \textmum BiCMOS Technology,” in OSA Advanced Photonics Congress 2021, 2021, p. IW1B.1, doi: 10.1364/IPRSN.2021.IW1B.1.' mla: Kress, Christian, et al. “High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \textmum BiCMOS Technology.” OSA Advanced Photonics Congress 2021, Optical Society of America, 2021, p. IW1B.1, doi:10.1364/IPRSN.2021.IW1B.1. short: 'C. Kress, K. Singh, T. Schwabe, S. Preußler, T. Schneider, J.C. Scheytt, in: OSA Advanced Photonics Congress 2021, Optical Society of America, 2021, p. IW1B.1.' date_created: 2022-01-10T11:51:46Z date_updated: 2023-06-16T06:54:55Z department: - _id: '58' - _id: '230' doi: 10.1364/IPRSN.2021.IW1B.1 keyword: - Analog to digital converters - Extinction ratios - Grating couplers - Modulation - Modulators - Phase shift language: - iso: eng page: IW1B.1 project: - _id: '302' grant_number: '403154102' name: 'PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC' publication: OSA Advanced Photonics Congress 2021 publisher: Optical Society of America related_material: link: - relation: confirmation url: https://www.osapublishing.org/abstract.cfm?uri=IPRSN-2021-IW1B.1 status: public title: High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \textmum BiCMOS Technology type: conference user_id: '13256' year: '2021' ...