TY - GEN ED - Eke, Norbert Otto ED - Willeke, Stephanie ID - 50980 T2 - andererseits. Yearbook of Transatlantic German Studies 11/12 (2022/23) TI - Special Section/Schwerpunkt: Poetologien mehrdeutigen Erinnerns. Historisierungsstrategien in der deutschsprachigen Gegenwartsliteratur ER - TY - CHAP AU - Eke, Norbert ED - Donahue, William Collins ED - Mein, Georg ED - Parr, Rolf ID - 50982 T2 - andererseits. Yearbook of Transatlantic German Studies 11/12 (2022/23) TI - Poetologien mehrdeutigen Erinnerns in der deutschsprachigen Gegenwartsliteratur. ER - TY - GEN AB - 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. ED - Tischendorf, Ricardo ED - Massopo, Orlando ED - Schmid, Hans-Joachim ED - Pyrmak, Olek ED - Dupont, Sophie ED - Fröde, Fabian ED - Pitsch, Heinz ED - Kneer, Reinhold ID - 51133 KW - Flame Spray Pyrolysis KW - SpraySyn2 KW - Spray flame synthesis KW - Maghemite nanoparticles KW - Gas to particle-conversion KW - Hole in a tube sampling T2 - Applications in Energy and Combustion Science TI - Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS) ER - TY - CHAP AU - Eke, Norbert Otto ED - Özelt, Clemens ED - Schneider, Martin ID - 50981 SN - 978-3-7705-6762-1 T2 - Die Kunst der Theatereröffnung. Ästhetik und Sozialgeschichte von Bühnenprologen TI - „Es nimmt der Raum gastfreundlich auf die Menge“. Theodor Hells Prolog zur Eröffnung des Dresdner Hoftheaters (1841) VL - Band: 3 ER - TY - CHAP AU - Eke, Norbert Otto ED - Egidi, Margreth ED - Peters, Ludmila ED - Schmidt, Jochen ID - 50984 T2 - (Un)verfügbar – Kulturen des Heiligen TI - „Wenn die Heilige Zeit da ist, werde ich […] weggehen“. Heilige Zeit in Claudia Llosas Madeinusa ER - TY - CHAP AU - Eke, Norbert Otto ED - Egidi, Margreth ED - Peters , Ludmila ED - Schmidt, Jochen ID - 50983 T2 - (Un)verfügbar – Kulturen des Heiligen TI - Das Heilige – Versuch einer Definition ER - TY - JOUR AU - Eke, Norbert Otto ID - 50985 JF - Studia theodisca 31 TI - Artaud ± Brecht Peter Weiss’ Theater-Revolution (Marat/Sade) ER - TY - CHAP AU - High , Jeffrey L. AU - Collenberg-González, Carrie ED - Eke, Norbert Otto ID - 51154 T2 - Amsterdamer Beiträge zur neueren Germanistik TI - Heinrich von Kleist. Artistic and Aesthetik Legacies VL - Bd. 96 ER - TY - JOUR AB - Ferroelectric domain wall (DW) conductivity (DWC) can be attributed to two separate mechanisms: (a) the injection/ejection of charge carriers across the Schottky barrier formed at the (metal-)electrode-DW junction and (b) the transport of those charge carriers along the DW. Current-voltage (I-U) characteristics, recorded at variable temperatures from LiNbO3 (LNO) DWs, are clearly able to differentiate between these two contributions. Practically, they allow us to directly quantify the physical parameters relevant to the two mechanisms (a) and (b) mentioned above. These are, for example, the resistance of the DW, the saturation current, the ideality factor, and the Schottky barrier height of the electrode-DW junction. Furthermore, the activation energies needed to initiate the thermally activated electronic transport along the DWs can be extracted. In addition, we show that electronic transport along LNO DWs can be elegantly viewed and interpreted in an adapted semiconductor picture based on a double-diode, double-resistor equivalent-circuit model, the R2D2 model. Finally, our R2D2 model was checked for its universality by successfully fitting the I-U curves of not only z-cut LNO bulk DWs, but equally of z-cut thin-film LNO DWs, and of x-cut thin-film DWs as reported in literature. AU - Zahn, Manuel AU - Beyreuther, Elke AU - Kiseleva, Iuliia AU - Lotfy, Ahmed Samir AU - McCluskey, Conor J. AU - Maguire, Jesi R. AU - Suna, Ahmet AU - Rüsing, Michael AU - Gregg, J. Marty AU - Eng, Lukas M. ID - 51156 IS - 2 JF - Physical Review Applied KW - General Physics and Astronomy SN - 2331-7019 TI - Equivalent-circuit model that quantitatively describes domain-wall conductivity in ferroelectric lithium VL - 21 ER - TY - GEN AB - We rigorously derive novel and sharp finite-data error bounds for highly sample-efficient Extended Dynamic Mode Decomposition (EDMD) for both i.i.d. and ergodic sampling. In particular, we show all results in a very general setting removing most of the typically imposed assumptions such that, among others, discrete- and continuous-time stochastic processes as well as nonlinear partial differential equations are contained in the considered system class. Besides showing an exponential rate for i.i.d. sampling, we prove, to the best of our knowledge, the first superlinear convergence rates for ergodic sampling of deterministic systems. We verify sharpness of the derived error bounds by conducting numerical simulations for highly-complex applications from molecular dynamics and chaotic flame propagation. AU - Philipp, Friedrich M. AU - Schaller, Manuel AU - Boshoff, Septimus AU - Peitz, Sebastian AU - Nüske, Feliks AU - Worthmann, Karl ID - 51160 T2 - arXiv:2402.02494 TI - Extended Dynamic Mode Decomposition: Sharp bounds on the sample efficiency ER - TY - BOOK AU - Seitz, Simone AU - Hamacher, Catalina AU - Schieffer, Leonie AU - Bunte, Charline ID - 51132 SN - 978-3-95414-206-4 TI - Qualitätsoffensive Ganztag - Praktische Methoden für den Weg zur guten Ganztagsbildung ER - TY - CHAP AU - Hartung, Olaf ED - Hartung, Olaf ED - Krebs, Alexandra ED - Meyer-Hamme, Johannes ID - 50073 SN - 1435-7658 T2 - Geschichtskulturen im digitalen Wandel? TI - Historisches Lernen in einer ‚(Geschichts-)Kultur der Digitalität‘? ER - TY - BOOK ED - Hartung, Olaf ID - 48576 SN - 1435-7658 TI - Geschichtskulturen im digitalen Wandel? ER - TY - GEN AU - Elit, Stefan ID - 49713 IS - 4 T2 - ZfdPh TI - Handbuch Poetikvorlesungen. Geschichte – Praktiken – Poetiken, hg. v. Gundela Hachmann, Julia Schöll u. Johanna Bohley, Berlin/Boston 2022 VL - 143 ER - TY - JOUR AB - Charge transfer mechanism in the deprotonation-induced n-type doping of PCBM. AU - Dong, Chuan-Ding AU - Bauch, Fabian AU - Hu, Yuanyuan AU - Schumacher, Stefan ID - 51221 IS - 5 JF - Physical Chemistry Chemical Physics KW - Physical and Theoretical Chemistry KW - General Physics and Astronomy SN - 1463-9076 TI - Charge transfer in superbase n-type doping of PCBM induced by deprotonation VL - 26 ER - TY - CHAP AU - Schroeter-Wittke, Harald AU - Jacke, Christoph ED - Egidi, Margreth ED - Peters, Ludmila ED - Schmidt, Jochen ID - 51258 SN - 978-3-8376-6611-3 T2 - (Un)verfügbar - Kulturen des Heiligen TI - Pop-Ikonen. Transformationen des Heiligen in der deutschen Pop(musik)kultur ER - TY - CHAP AU - Treder, Alexandra ED - Cuéllar Valcárcel, María de Lourdes ED - Gerena Meléndez, Alicia Alexesteva ED - Gil Carillo, Ittay Osiris ID - 48943 T2 - Memorias del III Congreso Internacional de Lenguas, Lingüística y Traducción TI - Concepciones de cultura y de encuentros interculturales de futuros/as profesores/as de Alemán como Lengua Extranjera ER - TY - JOUR AB - AbstractApproximation of subdifferentials is one of the main tasks when computing descent directions for nonsmooth optimization problems. In this article, we propose a bisection method for weakly lower semismooth functions which is able to compute new subgradients that improve a given approximation in case a direction with insufficient descent was computed. Combined with a recently proposed deterministic gradient sampling approach, this yields a deterministic and provably convergent way to approximate subdifferentials for computing descent directions. AU - Gebken, Bennet ID - 51208 JF - Computational Optimization and Applications KW - Applied Mathematics KW - Computational Mathematics KW - Control and Optimization SN - 0926-6003 TI - A note on the convergence of deterministic gradient sampling in nonsmooth optimization ER - TY - BOOK ED - Blumberg, Eva ED - Niederhaus, Constanze ED - Mischendahl, Anne ID - 40014 TI - Mehrsprachigkeit in der Schule. Sprachbildung im und durch Sachunterricht. ER - TY - GEN AB - Given a real semisimple connected Lie group $G$ and a discrete torsion-free subgroup $\Gamma < G$ we prove a precise connection between growth rates of the group $\Gamma$, polyhedral bounds on the joint spectrum of the ring of invariant differential operators, and the decay of matrix coefficients. In particular, this allows us to completely characterize temperedness of $L^2(\Gamma\backslash G)$ in this general setting. AU - Lutsko, Christopher AU - Weich, Tobias AU - Wolf, Lasse Lennart ID - 51204 T2 - arXiv:2402.02530 TI - Polyhedral bounds on the joint spectrum and temperedness of locally symmetric spaces ER -