TY - JOUR
AU - Codescu, M.-A.
AU - Kunze, T.
AU - Weiß, M.
AU - Brehm, Martin
AU - Kornilov, O.
AU - Sebastiani, D.
AU - Nibbering, E. T. J.
ID - 45013
JF - J. Phys. Chem. Lett.
TI - Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole
VL - 14
ER -
TY - JOUR
AU - Roos, E.
AU - Sebastiani, D.
AU - Brehm, Martin
ID - 45012
JF - Phys. Chem. Chem. Phys.
TI - A Force Field for Bio-Polymers in Ionic Liquids (BILFF) – Part 2: Cellulose in [EMIm][OAc] / Water Mixtures
VL - 25 (12)
ER -
TY - JOUR
AU - Radicke, J.
AU - Roos, E.
AU - Sebastiani, D.
AU - Brehm, Martin
AU - Kressler, J.
ID - 45011
JF - J. Polym. Sci.
TI - Lactate-Based Ionic Liquids as Chiral Solvents for Cellulose
VL - 61 (5)
ER -
TY - JOUR
AB - The aim of the present study was to investigate if the presence of anterior cruciate ligament (ACL) injury risk factors depicted in the laboratory would reflect at-risk patterns in football-specific field data. Twenty-four female footballers (14.9 ± 0.9 year) performed unanticipated cutting maneuvers in a laboratory setting and on the football pitch during football-specific exercises (F-EX) and games (F-GAME). Knee joint moments were collected in the laboratory and grouped using hierarchical agglomerative clustering. The clusters were used to investigate the kinematics collected on field through wearable sensors. Three clusters emerged: Cluster 1 presented the lowest knee moments; Cluster 2 presented high knee extension but low knee abduction and rotation moments; Cluster 3 presented the highest knee abduction, extension, and external rotation moments. In F-EX, greater knee abduction angles were found in Cluster 2 and 3 compared to Cluster 1 (p = 0.007). Cluster 2 showed the lowest knee and hip flexion angles (p < 0.013). Cluster 3 showed the greatest hip external rotation angles (p = 0.006). In F-GAME, Cluster 3 presented the greatest knee external rotation and lowest knee flexion angles (p = 0.003). Clinically relevant differences towards ACL injury identified in the laboratory reflected at-risk patterns only in part when cutting on the field: in the field, low-risk players exhibited similar kinematic patterns as the high-risk players. Therefore, in-lab injury risk screening may lack ecological validity.
AU - Di Paolo, Stefano
AU - Nijmeijer, Eline M.
AU - Bragonzoni, Laura
AU - Gokeler, Alli
AU - Benjaminse, Anne
ID - 45134
IS - 4
JF - Sensors
KW - Electrical and Electronic Engineering
KW - Biochemistry
KW - Instrumentation
KW - Atomic and Molecular Physics
KW - and Optics
KW - Analytical Chemistry
SN - 1424-8220
TI - Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach
VL - 23
ER -
TY - JOUR
AU - Gokeler, Alli
AU - Nijmeijer, E. M.
AU - Heuvelmans, P.
AU - Tak, I.
AU - Ramponi, C.
AU - Benjaminse, A.
ID - 45154
JF - Arthroskopie
KW - Orthopedics and Sports Medicine
SN - 0933-7946
TI - Motor learning principles during rehabilitation after anterior cruciate ligament injury Prinzipien motorischen Lernens während der Rehabilitation nach vorderer Kreuzbandverletzung
ER -
TY - JOUR
AU - Sherman, David A.
AU - Baumeister, Jochen
AU - Stock, Matt S.
AU - Murray, Amanda M.
AU - Bazett-Jones, David M.
AU - Norte, Grant E.
ID - 45159
JF - Clinical Neurophysiology
KW - Physiology (medical)
KW - Neurology (clinical)
KW - Neurology
KW - Sensory Systems
SN - 1388-2457
TI - Brain activation and single-limb balance following anterior cruciate ligament reconstruction
VL - 149
ER -
TY - JOUR
AB - IntroductionExergames are increasingly used in rehabilitation settings for older adults to train physical and cognitive abilities. To meet the potential that exergames hold, they need to be adapted to the individual abilities of the player and their training objectives. Therefore, it is important to know whether and how game characteristics affect their playing. The aim of this study is to investigate the effect of two different kinds of exergame (step game and balance game) played at two difficulty levels on brain activity and physical activity.MethodsTwenty-eight older independently living adults played two different exergames at two difficulty levels each. In addition, the same movements as during gaming (leaning sideways with feet in place and stepping sideways) were performed as reference movements. Brain activity was recorded using a 64-channel EEG system to assess brain activity, while physical activity was recorded using an accelerometer at the lower back and a heart rate sensor. Source-space analysis was applied to analyze the power spectral density in theta (4 Hz–7 Hz) and alpha-2 (10 Hz–12 Hz) frequency bands. Vector magnitude was applied to the acceleration data.ResultsFriedman ANOVA revealed significantly higher theta power for the exergaming conditions compared to the reference movement for both games. Alpha-2 power showed a more diverse pattern which might be attributed to task-specific conditions. Acceleration decreased significantly from the reference movement to the easy condition to the hard condition for both games.DiscussionThe results indicate that exergaming increases frontal theta activity irrespective of type of game or difficulty level, while physical activity decreases with increasing difficulty level. Heart rate was found to be an inappropriate measure in this population older adults. These findings contribute to understanding of how game characteristics affect physical and cognitive activity and consequently need to be taken into account when choosing appropriate games and game settings for exergame interventions.
AU - Müller, Helen Martha
AU - Baumeister, Jochen
AU - Bardal, Ellen Marie
AU - Vereijken, Beatrix
AU - Skjæret-Maroni, Nina
ID - 45149
JF - Frontiers in Aging Neuroscience
KW - Cognitive Neuroscience
KW - Aging
SN - 1663-4365
TI - Exergaming in older adults: the effects of game characteristics on brain activity and physical activity
VL - 15
ER -
TY - JOUR
AB - By using coordinating anions such as acetate, a water-in-salt-like coordination environment of Zn ions is achieved in relatively dilute conditions, leading to prolonged and efficient cycling of zinc metal anodes.
AU - Gomez Vazquez, Dario
AU - Pollard, Travis P.
AU - Mars, Julian
AU - Yoo, Ji Mun
AU - Steinrück, Hans-Georg
AU - Bone, Sharon E.
AU - Safonova, Olga V.
AU - Toney, Michael F.
AU - Borodin, Oleg
AU - Lukatskaya, Maria R.
ID - 43092
JF - Energy & Environmental Science
KW - Pollution
KW - Nuclear Energy and Engineering
KW - Renewable Energy
KW - Sustainability and the Environment
KW - Environmental Chemistry
SN - 1754-5692
TI - Creating water-in-salt-like environment using coordinating anions in non-concentrated aqueous electrolytes for efficient Zn batteries
VL - 16
ER -
TY - JOUR
AU - Weadock, Nicholas J.
AU - Sterling, Tyler C.
AU - Vigil, Julian A.
AU - Gold-Parker, Aryeh
AU - Smith, Ian C.
AU - Ahammed, Ballal
AU - Krogstad, Matthew J.
AU - Ye, Feng
AU - Voneshen, David
AU - Gehring, Peter M.
AU - Rappe, Andrew M.
AU - Steinrück, Hans-Georg
AU - Ertekin, Elif
AU - Karunadasa, Hemamala I.
AU - Reznik, Dmitry
AU - Toney, Michael F.
ID - 44271
JF - Joule
KW - General Energy
SN - 2542-4351
TI - The nature of dynamic local order in CH3NH3PbI3 and CH3NH3PbBr3
VL - 7
ER -
TY - CHAP
AU - Hannebohm, Ronja
ED - Hannebohm, Ronja
ED - Harmening, Anda-Lisa
ID - 45185
T2 - Biopolitik(en) in Literatur, Film und Serie: Aushandlungs- und Reflexionsräume vom 18. Jahrhundert bis heute
TI - Biopolitik und Biopoethik. Modi der Aushandlung menschlichen Lebens in (Gegenwarts-)Literatur, Film und Serie
VL - 4
ER -
TY - BOOK
ED - Hannebohm, Ronja
ED - Harmening, Anda-Lisa Martha Josephine Anna
ID - 45184
TI - Biopolitik(en) in Literatur, Film und Serie: Aushandlungs- und Reflexionsräume vom 18. Jahrhundert bis heute
VL - 4
ER -
TY - THES
AU - Pauck, Felix
ID - 43108
TI - Cooperative Android App Analysis
ER -
TY - CHAP
AB - Die Überreste vom Tornado in Paderborn
Was bleibt, sind die Scherben von zerbrochenen Dachziegeln. Olav Schiedel sammelt und kartiert Fragmente dieser Ziegel entlang der Tornadoschneise. Aus dem Objekt „Scherbe” wird das Material für eine künstlerische Auseinandersetzung.
Die Ausstellung „Scherben“ verknüpft Archäologie mit bildender Kunst und zeigt die aktuelle Stadtgeschichte aus einer anderen, ungewohnten Perspektive.
AU - Langer, Svenja
ID - 45186
KW - Ausstellung
KW - Katalog
KW - Tornado
KW - Scherbe
KW - Dachziegel
KW - Spur
KW - Kunst
T2 - Scherben. Der Katalog zur Ausstellung. Olav Schiedel im Raum für Kunst Paderborn. 20.05.-04.06.2023
TI - Impulse zur Scherbe als Spur und künstlerisches Material
VL - 1
ER -
TY - CONF
AU - Werthmann, Julian
AU - Scheideler, Christian
AU - Coy, Sam
AU - Czumaj, Artur
AU - Schneider, Philipp
ID - 45188
TI - Routing Schemes for Hybrid Communication Networks
ER -
TY - CONF
AU - Dou, Jinfeng
AU - Götte, Thorsten
AU - Hillebrandt, Henning
AU - Scheideler, Christian
AU - Werthmann, Julian
ID - 45193
T2 - Proc. of the 42nd ACM Symposium on Principles of Distributed Computing (PODC '23)
TI - Brief Announcement: Distributed Construction of Near-Optimal Compact Routing Schemes for Planar Graphs
ER -
TY - CONF
AB - Market transactions are subject to information asymmetry about the delivered value proposition, causing transaction costs and adverse market effects among buyers and sellers. Information systems research has investigated how review systems can reduce information asymmetry in business-to-consumer markets. However, these systems cannot be readily applied to business-to-business markets, are vulnerable to manipulation, and suffer from conceptual weak spots since they use textual data or star ratings. Building on design science research, we conceptualize a new class of reputation systems based on monetary-based payments as quantitative ratings for each transaction stored on a blockchain. Using cryptography, we show that our system assures content confidentiality so that buyers can share and sell their ratings selectively, establishing a reputation ecosystem. Our prescriptive insights advance the design of reputation systems and offer new paths to understanding the antecedents, dynamics, and consequences to reduce information asymmetry in B2B transactions.
AU - Hemmrich, Simon
AU - Bobolz, Jan
AU - Beverungen, Daniel
AU - Blömer, Johannes
ID - 44855
T2 - ECIS 2023 Research Papers
TI - Designing Business Reputation Ecosystems — A Method for Issuing and Trading Monetary Ratings on a Blockchain
ER -
TY - CONF
AU - Dreiling, Dmitrij
AU - Itner, Dominik
AU - Hetkämper, Tim
AU - Birk, Carolin
AU - Gravenkamp, Hauke
AU - Henning, Bernd
ID - 45205
SN - 978-3-9819376-8-8
T2 - SMSI 2023 Conference
TI - Improved determination of viscoelastic material parameters using a pulse-echo measurement setup
ER -
TY - CONF
AU - Seutter, Janina
AU - Bartelheimer, Christian
AU - Kundisch, Dennis
ID - 43027
T2 - Proceedings of the 18th International Conference on Design Science Research in Information Systems and Technology
TI - Supporting Innovation through B2B Reviews – A Taxonomy of B2B Online Review Environments
ER -
TY - JOUR
AU - Götte, Thorsten
AU - Hinnenthal, Kristian
AU - Scheideler, Christian
AU - Werthmann, Julian
ID - 45192
JF - Distributed Computing
TI - Time-Optimal Construction of Overlays
ER -
TY - CONF
AU - Jabr, Wael
AU - Gutt, Dominik
AU - Neumann, Jürgen
AU - Kundisch, Dennis
ID - 40063
T2 - Proceedings of the 45th ISMS Marketing Science Conference
TI - Updating at the Expense of Demand? The Case of Platform Apps
ER -
TY - GEN
AU - N., N.
ID - 45243
TI - Development and Evaluation of a Model-Based UI Prototyping Experimentation Approach
ER -
TY - JOUR
AU - Tchomgue Simeu, Arnold
AU - Mahnken, Rolf
ID - 44890
IS - 1
JF - PAMM
KW - Electrical and Electronic Engineering
KW - Atomic and Molecular Physics
KW - and Optics
SN - 1617-7061
TI - Goal‐oriented adaptivity based on a model hierarchy of mean‐field and full‐field homogenization methods in elasto‐plasticity
VL - 22
ER -
TY - CHAP
AU - Dorogova, Elizaveta
ED - Oeming, Manfred
ED - Schmidt, Nora
ID - 45266
T2 - Hermeneutiken der Weisheit
TI - Weisheit und moralischer Intellektualismus im Koran aus intertextueller Perspektive
ER -
TY - JOUR
AU - Hanusch, Maximilian
ID - 34833
IS - 4
JF - Indagationes Mathematicae.
KW - Lie group actions and analytic 1-submanifolds
TI - Decompositions of Analytic 1-Manifolds
VL - 34
ER -
TY - GEN
AU - Dorogova, Elizaveta
ID - 45267
T2 - Theologie und Glaube
TI - Rezension zu Martin Breul/Klaus Viertbauer (Hg.), Der Glaube und seine Gründe, Tübingen: Mohr Siebeck 2022, brosch.
ER -
TY - BOOK
AU - Szczepaniak-Kozak, Anna
AU - Farrell, Angela
AU - Ballweg, Sandra
AU - Daase, Andrea
AU - Wąsikiewicz-Firlej, Emilia
AU - Masterson, Mary
ID - 45279
SN - 9783847115632
TI - Promoting multilingual practices in school and home environments
ER -
TY - CHAP
AU - Kulgemeyer, Christoph
AU - Sterzing, Fabian
AU - Hörnlein, Madeleine
ED - Wilhelm, Thomas
ID - 45277
T2 - Digital Physik unterrichten. Grundlagen, Impulse, Perspektiven
TI - Aus Erklärvideos lernen
ER -
TY - JOUR
AB - (1) This work answers the question of whether and to what extent there is a significant difference in mechanical properties when different additive manufacturing processes are applied to the material 1.2709. The Laser-Powder-Bed-Fusion (L-PBF) and Laser-Metal-Deposition (LMD) processes are considered, as they differ fundamentally in the way a part is manufactured. (2) Known process parameters for low-porosity parts were used to fabricate tensile strength specimens. Half of the specimens were heat-treated, and all specimens were tested for mechanical properties in a quasi-static tensile test. In addition, the material hardness was determined. (3) It was found that, firstly, heat treatment resulted in a sharp increase in mechanical properties such as hardness, elastic modulus, yield strength and ultimate strength. In addition to the increase in these properties, the elongation at break also decreases significantly after heat treatment. The choice of process, on the other hand, does not give either process a clear advantage in terms of mechanical properties but shows that it is necessary to consider the essential mechanical properties for a desired application.
AU - Gnaase, Stefan
AU - Niggemeyer, Dennis
AU - Lehnert, Dennis
AU - Bödger, Christian
AU - Tröster, Thomas
ID - 37200
IS - 2
JF - Crystals
KW - Inorganic Chemistry
KW - Condensed Matter Physics
KW - General Materials Science
KW - General Chemical Engineering
SN - 2073-4352
TI - Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD & L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709
VL - 13
ER -
TY - JOUR
AB - Many applications are driven by Machine Learning (ML) today. While complex ML models lead to an accurate prediction, their inner decision-making is obfuscated. However, especially for high-stakes decisions, interpretability and explainability of the model are necessary. Therefore, we develop a holistic interpretability and explainability framework (HIEF) to objectively describe and evaluate an intelligent system’s explainable AI (XAI) capacities. This guides data scientists to create more transparent models. To evaluate our framework, we analyse 50 real estate appraisal papers to ensure the robustness of HIEF. Additionally, we identify six typical types of intelligent systems, so-called archetypes, which range from explanatory to predictive, and demonstrate how researchers can use the framework to identify blind-spot topics in their domain. Finally, regarding comprehensiveness, we used a random sample of six intelligent systems and conducted an applicability check to provide external validity.
AU - Kucklick, Jan-Peter
ID - 45299
JF - Journal of Decision Systems
KW - Explainable AI (XAI)
KW - machine learning
KW - interpretability
KW - real estate appraisal
KW - framework
KW - taxonomy
SN - 1246-0125
TI - HIEF: a holistic interpretability and explainability framework
ER -
TY - CHAP
AU - Kamcili-Yildiz, Naciye
ED - Yaşar , Sarıkaya
ED - Rothgangel, Martin
ED - Grün, Déborah Kathleen
ED - Soyhun, Mehmet
ID - 42087
T2 - Hadithdidaktik im Diskurs
TI - Sprachsensibles Arbeiten mit Hadithen im Islamischen Religionsunterricht
VL - 6
ER -
TY - CHAP
AU - Kamcili-Yildiz, Naciye
AU - Tautz, Monika
ED - Badawia, Tarek
ED - Topalovic, Said
ID - 42095
T2 - Islamunterricht im Diskurs. Religionspädagogische und fachdidaktische Ansätze
TI - Was heißt religiöses gebildet? Konzepte religiöser Bildung von islamischen Religionspädagogen
ER -
TY - GEN
AU - Aghaei Abrandabadi, Seyed Ali
AU - Bahrololoumi, Faranak
AU - Hajdas, Irka
AU - Jafarian, Rasul
AU - Kordavani, Lili
AU - Marx, Michael
ID - 42223
TI - Radiocarbon Dating Of Manuscripts Kept in the Central Library of the University of Tehran
ER -
TY - CHAP
AU - Aghaei Abrandabadi, Seyed Ali
ED - Blecher, Joel
ED - Brinkmann, Stefanie
ID - 42222
T2 - Hadith Commentary: Continuity and Change
TI - The Hermeneutics of al-Sharīf al-Murtaḍā (d. 436/1044) in the interpretation of Akhbār al-Āḥād in his Kitāb al-Amālī
ER -
TY - BOOK
AU - Hartmann, Alexandra
ID - 36038
SN - 978-3-031-20946-8
TI - The Black Humanist Tradition in Anti-Racist Literature: A Fragile Hope
ER -
TY - BOOK
AU - Teichert, Jeannine
ID - 45310
TI - Wie digitale Medien die kommunikative Aushandlung von Freundschaften verändern
ER -
TY - JOUR
AU - Teichert, Jeannine
AU - Meister., D.M.
ID - 45311
JF - MedienPädagogik
TI - Mediale Identitätsaushandlungen deutscher MigrantInnen im Zuge des Brexit
ER -
TY - CONF
AU - Karakaya, Kadiray
AU - Bodden, Eric
ID - 45312
T2 - 2023 IEEE Conference on Software Testing, Verification and Validation (ICST)
TI - Two Sparsification Strategies for Accelerating Demand-Driven Pointer Analysis
ER -
TY - GEN
AU - Koch, Angelina
ID - 43375
TI - Privacy-Preserving Collection and Evaluation of Log Files
ER -
TY - GEN
AU - Kempkes, Jens Peter
AU - Kreuzhage, Katharina
AU - Kundisch, Dennis
AU - Seutter, Janina
AU - Weskamp, Christoph
ID - 45364
TI - Digitale Transformation im Theater – Mittels Besucherforschung und Entscheidungsunterstützung zur besseren Angebotsgestaltung
VL - 172
ER -
TY - GEN
AB - Aufgrund der Leichtbauweise von Fahrzeugkarosserien werden konventionelle Stahlgüten durch ultrahöchstfeste Stahlwerkstoffe ersetzt. Die hohe Festigkeit dieser Werkstoffe stellt eine Herausforderung für das mechanische Fügen dar. Weil diese Stahlwerkstoffe zunehmend in erhöhter Dicke eingesetzt werden, wird die Leistungsfähigkeit konventioneller Halbhohlstanzniete überschritten. Im Rahmen des Forschungsvorhabens wurde ein Stanzniet erarbeitet, welcher eine Erweiterung des Einsatzbereichs des Halbhohlstanznietens auf stempelseitige Fügeteile aus höchstfesten und ultrahöchstfesten Stahlwerkstoffen bei großer Materialdicke ermöglicht. Zunächst wurden Referenzverbindungen mit handelsüblichen Stanznieten erstellt und analysiert. Durch die simulationsgestützte Ermittlung der Spannungs- und Dehnungsverhältnisse im Stanzniet wurden Ansätze für die Modifizierung der Stanzniete erarbeitet. Ebenso wurde der Einfluss der einzelnen Geometrieparameter des Stanzniets auf die Verformung des Stanzniets und die Verbindungsausbildung untersucht. Parallel dazu, wurden die mechanischen Eigenschaften potenzieller Stanznietwerkstoffe charakterisiert und eine angepasste Wärmebehandlungsstrategie erarbeitet. Durch die Modifizierung der Werkstofflegierung und der Wärmebehandlung kann eine Erhöhung der Festigkeit des Stanznietwerkstoffs um ca. 20 % gegenüber der bisher üblichen Härteklasse H6 erreicht werden. Daher kann eine Stanznietgeometrie mit einem bisher üblichen Nenndurchmesser von 5,5 mm verwendet werden. Die neuen Stanzniete wurden experimentell in einem zweistufigen Kaltumformprozess hergestellt. Abschließend wurde die erarbeitete Lösung basierend auf experimentellen Versuchen analysiert.
AU - Uhe, Benedikt
AU - Meschut, Gerson
ID - 45370
TI - Lösungsstrategien für das Halbhohlstanznieten von höchstfesten und ultrahöchstfesten Stählen mit Aluminiumwerkstoffen
VL - 592
ER -
TY - CHAP
AU - Weiler, David
AU - Burde, Jan-Philipp
AU - Große-Heilmann, Rike Isabel
AU - Lachner, Andreas
AU - Riese, Josef
AU - Schubatzky, Thomas
ED - Meier, Monique
ED - Greefrath, Gilbert
ED - Hammann, Marcus
ED - Wodzinski, Rita
ED - Ziepprecht, Kathrin
ID - 45171
SN - 2524-8677
T2 - Lehr-Lern-Labore und Digitalisierung
TI - Förderung von digitalisierungsbezogenen Kompetenzen von angehenden Physiklehrkräften mit dem SQD-Modell im Projekt DiKoLeP
ER -
TY - JOUR
AB - Abstract
This paper investigates the price impact of the fuel discount in Germany, which was introduced between June and August 2022 to partially compensate increased energy costs. Using the augmented synthetic control method (ASCM) to construct the counterfactual, we provide quantitative evidence to the heated debate concerning the impact of this policy tool and find the fuel discount to have decreased consumer prices of petrol (diesel) by at least 0.30 euro per litre (0.10 euro per litre) on average. The results are robust to various sensitivity checks. Thus, oil companies and petrol stations decreased prices for consumers and passed on about 85 % (65 %) of the discount in case of petrol (diesel). Moreover, we do not find signs of excessive price increases in anticipation of the fuel discount.
AU - Seiler, Volker
AU - Stöckmann, Nico
ID - 45401
JF - German Economic Review
KW - Economics and Econometrics
SN - 1465-6485
TI - The Impact of the German Fuel Discount on Prices at the Petrol Pump
ER -
TY - CONF
AU - Kulgemeyer, Christoph
AU - Sterzing, Fabian
AU - Hörnlein, Madeleine
ED - Van Vorst, Helena
ID - 45398
TI - Von der "Shallowing Hypothese" zur "Illusion of Understanding" -wie wirken Erklärvideos und Lehrbuchtexte auf Wissen und Verstehensillusion?
ER -
TY - CONF
AU - Hörnlein, Madeleine
AU - Kulgemeyer, Christoph
ED - Van Vorst, Helena
ID - 45399
TI - "Aus Erklärvideos lernt man nur oberflächlich" - oder erwirbt man auch Konzeptwissen?
ER -
TY - CHAP
AU - Kamcili-Yildiz, Naciye
ED - Körs, Anna
ID - 45439
T2 - Islamischer Religionsunterricht in Deutschland
TI - Glaubende Grundhaltung als Zugang zum IslamTheologische Kompetenzen von islamischen Religionslehrkräften
ER -
TY - JOUR
AU - Althaus, Maike
AU - Müller, Stefanie Jutta Marianne
AU - Kundisch, Dennis
ID - 45444
JF - International Journal of Cultural Policy
TI - What Price Culture? – A Taxonomy of the Admission Pricing Policy at Museums
ER -
TY - JOUR
AB - The current investigation shows the feasibility of 316L steel powder production via three different argon gas atomisation routes (closed coupled atomisation, free fall atomisation with and without hot gas), along with subsequent sample production by laser powder bed fusion (PBF-LB). Here, a mixture of pure Fe and atomised 316L steel powder is used for PBF-LB to induce a chemical composition gradient in the microstructure. Optical microscopy and μ-CT investigations proved that the samples processed by PBF-LB exhibit very little porosity. Combined EBSD-EDS measurements show the chemical composition gradient leading to the formation of a local fcc-structure. Upon heat treatment (1100 °C, 14 h), the chemical composition is homogeneous throughout the microstructure. A moderate decrease (1060 to 985 MPa) in the sample’s ultimate tensile strength (UTS) is observed after heat treatment. However, the total elongation of the as-built and heat-treated samples remains the same (≈22%). Similarly, a slight decrease in the hardness from 341 to 307 HV1 is observed upon heat treatment.
AU - Pramanik, Sudipta
AU - Andreiev, Anatolii
AU - Hoyer, Kay-Peter
AU - Krüger, Jan Tobias
AU - Hengsbach, Florian
AU - Kircheis, Alexander
AU - Zhao, Weiyu
AU - Fischer-Bühner, Jörg
AU - Schaper, Mirko
ID - 41492
IS - 1
JF - Powders
SN - 2674-0516
TI - Powder Production via Atomisation and Subsequent Laser Powder Bed Fusion Processing of Fe+316L Steel Hybrid Alloy
VL - 2
ER -
TY - JOUR
AB - This paper reveals the 3D character of the intermetallic layer at the aluminum–steel interface which pops
up above the original sample surface during annealing. Popping out of the intermetallics was proven using
atomic force microscopy. The phase expands out of the plane due to the exothermic formation of the Al5Fe2
phase and the feasibility of surface diffusion. Milling by a focused ion beam enabled the comparison of the
chemical composition of the surface layer with the bulk interface, showing no difference. The growth direction
is both towards aluminum and steel — the main diffusion flux is from aluminum towards steel, and the new
intermetallic phase emerges at the steel side. The shortage of Al atoms causes a shift of the intermetallic as a
whole towards aluminum.
AU - Šlapáková, Michaela
AU - Kihoulou, Barbora
AU - Veselý, Jozef
AU - Minárik, Peter
AU - Fekete, Klaudia
AU - Knapek, Michal
AU - Králík, Rostislav
AU - Grydin, Olexandr
AU - Stolbchenko, Mykhailo
AU - Schaper, Mirko
ID - 43441
JF - Vacuum
KW - Al-steel clad
KW - twin-roll casting
KW - 3D characterization
KW - atomic force microscopy
KW - diffusion direction
KW - surface growth
SN - 0042-207X
TI - 3D-structure of intermetallic interface layer in Al–steel clad material
VL - 212
ER -
TY - CHAP
AU - Haase, Michael
AU - Bieber, Maximilian
AU - Tasche, Frederik
AU - Schaper, Mirko
AU - Hoyer, Kay-Peter
AU - Ponik, Bernd
AU - Magyar, Balázs
ED - Kynast, Michael
ED - Eichmann, Michael
ED - Witt, Gerd
ID - 45360
SN - 978-3-446-47941-8
T2 - Proceedings of the 19th Rapid.Tech 3D Conference Erfurt, Germany, 9–11 May 2023
TI - Umsetzung einer optimierten Oberflächenschlitzung zur Wirbelstromverlustreduktion auf der Oberfläche eines additiv gefertigten Permanentmagnet-Rotors
ER -
TY - JOUR
AU - Andreiev, Anatolii
AU - Hoyer, Kay-Peter
AU - Hengsbach, Florian
AU - Haase, Michael
AU - Tasche, Lennart
AU - Duschik, Kristina
AU - Schaper, Mirko
ID - 44078
JF - Journal of Materials Processing Technology
KW - Industrial and Manufacturing Engineering
KW - Metals and Alloys
KW - Computer Science Applications
KW - Modeling and Simulation
KW - Ceramics and Composites
SN - 0924-0136
TI - Powder bed fusion of soft-magnetic iron-based alloys with high silicon content
VL - 317
ER -