@article{52541, abstract = {{AbstractWe conducted an investigation into the palladium‐catalyzed carbon‐sulfur cross‐coupling reaction involving a 2‐bromothiophene derivative and potassium thioacetate as a substitute for hydrogen sulfide. This investigation utilized kinetic and computational methods. We synthesized two palladium complexes supported by the bisphosphane ligands bis(diphenylphosphino)ferrocene (DPPF) and bis(diisopropylphosphino)ferrocene (DiPPF), as well as their tentative intermediates in the catalytic cycle. Reaction rates were measured and then compared to computational predictions.}}, author = {{Peschtrich, Sebastian and Schoch, Roland and Kuckling, Dirk and Paradies, Jan}}, issn = {{1434-193X}}, journal = {{European Journal of Organic Chemistry}}, keywords = {{Organic Chemistry, Physical and Theoretical Chemistry}}, number = {{8}}, publisher = {{Wiley}}, title = {{{A Comparative Kinetic and Computational Investigation of the Carbon‐Sulfur Cross Coupling of Potassium Thioacetate and 2‐Bromo Thiophene Using Palladium/Bisphosphine Complexes}}}, doi = {{10.1002/ejoc.202301207}}, volume = {{27}}, year = {{2024}}, } @article{52572, abstract = {{A series of substituted ferrocenyl boron derivatives was synthesized. The oxidation of the ferrocenyl unit resulted in a significant increase of the boron‐centered Lewis acidity. The neutral and cationic Lewis acids were characterized by NMR‐spectroscopy, crystal structure analysis and by computational methods. The new Lewis acids were then applied in the Meinwald rearrangement of epoxides, predominantly furnishing aldehydes as the kinetic products.}}, author = {{Köring, Laura and Birenheide, Bernhard and Krämer, Felix and Wenzel, Jonas O. and Schoch, Roland and Brehm, Martin and Breher, Frank and Paradies, Jan}}, issn = {{1434-1948}}, journal = {{European Journal of Inorganic Chemistry}}, keywords = {{Inorganic Chemistry}}, publisher = {{Wiley}}, title = {{{Synthesis of Ferrocenyl Boranes and their Application as Lewis Acids in Epoxide Rearrangements}}}, doi = {{10.1002/ejic.202400057}}, year = {{2024}}, } @article{52534, author = {{Bauch, Fabian and Dong, Chuan-Ding and Schumacher, Stefan}}, issn = {{1932-7447}}, journal = {{The Journal of Physical Chemistry C}}, keywords = {{Surfaces, Coatings and Films, Physical and Theoretical Chemistry, General Energy, Electronic, Optical and Magnetic Materials}}, number = {{8}}, pages = {{3525--3532}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers}}}, doi = {{10.1021/acs.jpcc.3c07513}}, volume = {{128}}, year = {{2024}}, } @inproceedings{52573, author = {{Dechert, Christopher and Kenig, Eugeny}}, location = {{Bochum}}, title = {{{Der Einfluss von Mikrostrukturen auf die Flüssigkeitsausbreitung in strukturierten Packungen}}}, year = {{2024}}, } @phdthesis{52576, author = {{Frank, Maximilian}}, isbn = {{978-3-8440-9444-2}}, pages = {{234}}, publisher = {{Shaker Verlag}}, title = {{{Simulationsgestützte Bestimmung und Optimierung der Mischgüte in der Einschneckenextrusion}}}, volume = {{2024,5}}, year = {{2024}}, } @inproceedings{52579, author = {{Hami Dindar, Iman and Lutters, Nicole and Kenig, Eugeny Y.}}, location = {{Ruhr-Universität Bochum}}, title = {{{Wässrige Glucosaminlösung als neues Lösungsmittel zur CO2-Abscheidung}}}, year = {{2024}}, } @article{51518, abstract = {{In applications of piezoelectric actuators and sensors, the dependability and particularly the reliability throughout their lifetime are vital to manufacturers and end-users and are enabled through condition-monitoring approaches. Existing approaches often utilize impedance measurements over a range of frequencies or velocity measurements and require additional equipment or sensors, such as a laser Doppler vibrometer. Furthermore, the non-negligible effects of varying operating conditions are often unconsidered. To minimize the need for additional sensors while maintaining the dependability of piezoelectric bending actuators irrespective of varying operating conditions, an online diagnostics approach is proposed. To this end, time- and frequency-domain features are extracted from monitored current signals to reflect hairline crack development in bending actuators. For validation of applicability, the presented analysis method was evaluated on piezoelectric bending actuators subjected to accelerated lifetime tests at varying voltage amplitudes and under external damping conditions. In the presence of a crack and due to a diminished stiffness, the resonance frequency decreases and the root-mean-square amplitude of the current signal simultaneously abruptly drops during the lifetime tests. Furthermore, the piezoelectric crack surfaces clapping is reflected in higher harmonics of the current signal. Thus, time-domain features and harmonics of the current signals are sufficient to diagnose hairline cracks in the actuators.}}, author = {{Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Hemsel, Tobias and Sextro, Walter}}, issn = {{2079-9292}}, journal = {{Electronics}}, keywords = {{piezoelectric transducer, self-sensing, fault detection, diagnostics, hairline crack, condition monitoring}}, number = {{3}}, publisher = {{MDPI AG}}, title = {{{Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions}}}, doi = {{10.3390/electronics13030521}}, volume = {{13}}, year = {{2024}}, } @inbook{51364, author = {{Fuchs, Christian}}, booktitle = {{Digitalisierte Massenkommunikation und Verantwortung}}, editor = {{Litschka, Michael and Paganini, Claudia and Rademacher, Lars}}, isbn = {{9783748942801}}, pages = {{21--42}}, publisher = {{Nomos Verlagsgesellschaft mbH & Co. KG}}, title = {{{Grundlagen einer Ethik des Radikalen Digitalen Humanismus}}}, doi = {{10.5771/9783748942801}}, year = {{2024}}, } @article{52584, author = {{Rezat, Sebastian}}, journal = {{ZDM – Mathematics Education}}, publisher = {{Springer}}, title = {{{Research on curriculum resources in mathematics education: a survey of the field}}}, doi = {{10.1007/s11858-024-01559-x}}, year = {{2024}}, } @article{52587, author = {{Bodden, Eric and Pottebaum, Jens and Fockel, Markus and Gräßler, Iris}}, issn = {{1540-7993}}, journal = {{IEEE Security & Privacy}}, keywords = {{Law, Electrical and Electronic Engineering, Computer Networks and Communications}}, number = {{1}}, pages = {{69--72}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Evaluating Security Through Isolation and Defense in Depth}}}, doi = {{10.1109/msec.2023.3336028}}, volume = {{22}}, year = {{2024}}, }