@article{34302, abstract = {{Energy flow in the hydrogen bonding network of water is traced by resonant terahertz excitation and off-resonant optical probing.}}, author = {{Elgabarty, Hossam and Kampfrath, Tobias and Bonthuis, Douwe Jan and Balos, Vasileios and Kaliannan, Naveen Kumar and Loche, Philip and Netz, Roland R. and Wolf, Martin and Kühne, Thomas and Sajadi, Mohsen}}, issn = {{2375-2548}}, journal = {{Science Advances}}, keywords = {{Multidisciplinary}}, number = {{17}}, publisher = {{American Association for the Advancement of Science (AAAS)}}, title = {{{Energy transfer within the hydrogen bonding network of water following resonant terahertz excitation}}}, doi = {{10.1126/sciadv.aay7074}}, volume = {{6}}, year = {{2020}}, } @article{34301, abstract = {{

Ab initio molecular dynamics simulations of ambient liquid water and energy decomposition analysis have recently shown that water molecules exhibit significant asymmetry between the strengths of the two donor and/or the two acceptor interactions.

}}, author = {{Elgabarty, Hossam and Kühne, Thomas}}, issn = {{1463-9076}}, journal = {{Physical Chemistry Chemical Physics}}, keywords = {{Physical and Theoretical Chemistry, General Physics and Astronomy}}, number = {{19}}, pages = {{10397--10411}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Tumbling with a limp: local asymmetry in water's hydrogen bond network and its consequences}}}, doi = {{10.1039/c9cp06960g}}, volume = {{22}}, year = {{2020}}, } @inbook{34318, author = {{Kruse, Iris}}, booktitle = {{Handbuch Kinder- und Jugendliteratur}}, editor = {{Kurwinkel, Tobias and Schmerheim , Philipp}}, pages = {{408--411}}, publisher = {{J.B. Metzler}}, title = {{{Intermediale Lektüre}}}, year = {{2020}}, } @inbook{34321, author = {{Kruse, Iris}}, booktitle = {{Sprache als Herausforderung - Literatur als Ziel. Kinder- und jugendliterarische Texte und Medien als Ressource für sprachsensibles Lernen}}, editor = {{Brüggemann, Jörn and Mesch, Birgit }}, pages = {{155--174}}, publisher = {{Schneider Verlag Hohengehren}}, title = {{{Literatursprache im Medienvergleich erfahren. Literaturbezogene sprachliche Handlungserweiterungen in Lehr-Lernarrangements zu kinderliterarischen Medienverbünden}}}, year = {{2020}}, } @inbook{34320, author = {{Kanning, Julian and Kruse, Iris}}, booktitle = {{Das narrative Bilderbuch. Türöffner zu literar-ästhetischer Bildung, Erzähl- und Buchkultur}}, editor = {{Scherer, Gabriela and Heintz, Kathrin and Bahn, Michael }}, pages = {{265--300}}, publisher = {{ WVT}}, title = {{{Zwischen emotionaler Verwundbarkeit und Wissensdrang - Zur Fragen generierenden Wirkung eines literarästhetisch anspruchsvollen zeitgeschichtlichen Bilderbuchs}}}, year = {{2020}}, } @inbook{34322, author = {{Kruse, Iris and Terhorst , Sarah}}, booktitle = {{Kinder- und Jugendmedien im inklusiven Blick. Analytische und didaktische Perspektiven}}, editor = {{A, Frickel Daniela and Kagelmann, Andre and Seidler, Andreas and Glasenapp, Gabriele von}}, pages = {{257--277}}, publisher = {{ Peter Lang GmbH Internationaler Verlag der Wissenschaften}}, title = {{{Das starke Kind. Resilienz als Motiv in der Kinderliteratur}}}, year = {{2020}}, } @inbook{34319, author = {{Kruse, Iris}}, booktitle = {{Literarisches Lernen mit Medienverbünden für Kinder und Jugendliche. Abenteuer/âventiure als narrativer Zugang in Theorie und Praxis}}, editor = {{Müller, Karla and Sieber, Andrea }}, pages = {{73--98}}, publisher = {{Peter Lang GmbH Internationaler Verlag der Wissenschaften}}, title = {{{Abenteuerlich (und) intermedial. Zur Medienverbunddidaktik und zu Lernchancen des seriell verfilmten Mittelalterromans "Der kleine Ritter Trenk" von Kirsten Boie}}}, year = {{2020}}, } @article{34186, author = {{Kruse, Iris}}, journal = {{Praxis Deutsch (Gespräche über Literatur)}}, number = {{280}}, pages = {{12--17}}, title = {{{Vom Selbst- zum Gruppengespräch. Gedankenhöhlen zur Vorbereitung auf den Austausch über Literatur}}}, year = {{2020}}, } @inbook{33184, author = {{Harmening, Anda-Lisa Martha Josephine Anna}}, booktitle = {{Störungen des 'Selbst' – Trauma-Erfahrungen und Möglichkeiten ihrer künstlerischen Konfiguration}}, editor = {{Gansel, Carsten and Wolting, Monika}}, publisher = {{de Gruyter}}, title = {{{Topographische Grenzgänge in die Unterwelt: Sterben als Suche in David Grossmanns Aus der Zeit fallen}}}, year = {{2020}}, } @inbook{33185, author = {{Harmening, Anda-Lisa Martha Josephine Anna}}, booktitle = {{Politische Interventionen und Spielräume in der Gegenwartsliteratur von Autorinnen}}, editor = {{Öhlschläger, Claudia}}, publisher = {{Universitätsbibliothek Paderborn}}, title = {{{(Text)Körper und Macht – Politische Interventionen in Juli Zehs Corpus Delicti}}}, year = {{2020}}, } @book{33187, editor = {{Harmening, Anda-Lisa Martha Josephine Anna and Schmitt, Tamara and Baumgärtner , Maike }}, title = {{{Intersections of Gender and Myth in canadian culture and Media}}}, year = {{2020}}, } @inproceedings{34431, abstract = {{In diesem Beitrag werden zuerst die Hauptanforderungen für Schmierstoffe für die E-Mobilität dargestellt. Anschließend wird erklärt, welche technische Herausforderungen aus den sehr unterschiedlichen Anforderungen der einzelnen Komponenten resultieren. Danach wird der Einfluss der Grundölsorte, der Viskosität und der Additivierung diskutiert. Zum Schluss werden die typischen Unverträglichkeiten der eingesetzten Materialien und die damit verbundenen Schadensarten bzw. die Tests zur frühzeitigen Aufklärung, vorgestellt.}}, author = {{Magyar, Balázs and Freise, Rainer}}, booktitle = {{Experten-Forum Powertrain: Reibung in Antrieb und Fahrzeug 2019}}, editor = {{Liebl, Johannes}}, isbn = {{978-3-658-28711-5}}, pages = {{78–88}}, publisher = {{Springer Fachmedien Wiesbaden}}, title = {{{Schmierstoffentwicklung für E-Antriebe: Der Teufel steckt im Detail}}}, doi = {{10.1007/978-3-658-28711-5_8}}, year = {{2020}}, } @article{34435, abstract = {{Radial shaft sealing rings (RSSR) are important machine elements used in rotating and oil lubricated systems. Their main task is to prevent oil from exiting the system and dirt particles from entering the system. When this function is not fulfilled, a leakage can occur and cause excessive damage after certain operating times, such as gear failure due to insufficient lubrication. This is the reason for the high level of current research interest in seals. The sealing function of RSSR occurs in the contact area between the sealing lip and the shaft. The contact takes place over a very small contact width of approximately 1 μm. These extremely small dimensions and the complex relationships between the functional influencing variables on the radial shaft sealing system make it difficult to simulate wear on the sealing ring. The energetic consideration of the wear process offers the possibility of quantifying influencing variables more easily by their energetic contribution, which can be determined experimentally. Based on experimentally measured total friction moments, and with the help of a semi-analytical (SA) solid contact model based on the half-space theory, this paper presents a modelling approach for the calculation of wear at the sealing ring. The model presented in this work differs from the existing models in two ways. The first particularity is the coupling of SA method with finite element method (FEM) for the resolution of the contact between the sealing lip and the shaft, allowing a fine discretization of the contact zone (by SA method) and the consideration of the structural behavior (by FE method). The SA method compared to the commonly used FEM presents a great saving in computation time. The second particularity is the use of the real data obtained during the wear tests. Most existing simulation models are based purely on contact pressure. This means that through the contact pressure obtained by simulation and a given sliding distance value, a friction energy will be estimated which will be used in a next step using a wear model such as Archad’s to calculate the wear rate. In this publication the value of friction energy was obtained directly on an experimental basis and a more appropriate wear law, such as Fleischer’s, taking into account the friction conditions, was used to estimate the wear rate.}}, author = {{Foko Foko, Flavien and Heimes, Julia and Magyar, Balázs and Sauer, Bernd}}, issn = {{2075-4442}}, journal = {{Lubricants}}, number = {{2}}, title = {{{Friction Energy-Based Wear Simulation for Radial Shaft Sealing Ring}}}, doi = {{10.3390/lubricants8020015}}, volume = {{8}}, year = {{2020}}, } @article{34436, abstract = {{Regarding the increasing demand in seal lifetime and energy efficiency, a detailed microscopic simulation is necessary—as an addition to experimental investigations—to better understand and improve radial shaft seals. For this purpose, typically thermoelastohydrodynamic lubrication (TEHL) simulations are used. The published models range from rather simple elastohydrodynamic lubrication (EHL) models to very sophisticated TEHL models. Only very few models take into account the roughness or microstructure of both contact surfaces, though, since this would require the consideration of transient effects. In this article, a transient TEHL model for the contact of radial shaft seals is presented. Studies of the sealing contact are conducted, and the possibility of investigating shaft microstructuring is shown.}}, author = {{Thielen, Stefan and Magyar, Balázs and Sauer, Bernd}}, issn = {{0742-4787}}, journal = {{Journal of Tribology}}, number = {{5}}, title = {{{Thermoelastohydrodynamic Lubrication Simulation of Radial Shaft Sealing Rings}}}, doi = {{10.1115/1.4045802}}, volume = {{142}}, year = {{2020}}, } @article{32456, author = {{Letafatkar, Amir and Rabiei, Pouya and Ghanati, Hadi Abbaszadeh and Khosrokiani, Zohre and Ghahremani, Naji and Gokeler, Alli}}, issn = {{1824-7490}}, journal = {{Sport Sciences for Health}}, keywords = {{Orthopedics and Sports Medicine}}, number = {{4}}, pages = {{737--745}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Training athletes with an external attentional focus enhances athletic performance during countermovement jump}}}, doi = {{10.1007/s11332-020-00652-4}}, volume = {{16}}, year = {{2020}}, } @article{32455, author = {{Haines, Mackenzie and Murray, Amanda M. and Glaviano, Neal R. and Gokeler, Alli and Norte, Grant E.}}, issn = {{0167-9457}}, journal = {{Human Movement Science}}, keywords = {{Experimental and Cognitive Psychology, Orthopedics and Sports Medicine, General Medicine, Biophysics}}, publisher = {{Elsevier BV}}, title = {{{Restricting ankle dorsiflexion does not mitigate the benefits of external focus of attention on landing biomechanics in healthy females}}}, doi = {{10.1016/j.humov.2020.102719}}, volume = {{74}}, year = {{2020}}, } @article{34489, abstract = {{Zusammenfassung. Positive Einstellungen zu Inklusion gelten als zentraler Erfolgsfaktor für die Entwicklung eines inklusiven Schulsystems. Die vorliegende Studie prüft die Validität dreier gängiger deutschsprachiger Messinstrumente zur Erfassung von Einstellungen zu Inklusion in einer unabhängigen Stichprobe: SACIE, EFI-L und KIESEL. Zur Validierung herangezogene externe Konstrukte sind Selbstwirksamkeit und die Big Five Persönlichkeitsfaktoren. Die Ergebnisse einer Befragung von 556 Lehrkräften und Lehramtsstudierenden (Alter: M‍( SD) = 26.48 (12.67); 70 % weiblich) mit Blick auf die Inklusion von Kindern mit Förderschwerpunkt Lernen (SPF-L) zeigen eine weitgehend gute Replizierbarkeit der Faktorstrukturen der Instrumente. Die Faktorkorrelationen über die Instrumente hinweg lagen zwischen |.61| und |.96| (nur Attitude Subskala des SACIE). Alle Subskalen zeigen vergleichbare Zusammenhänge mit Selbstwirksamkeit und den Big Five Persönlichkeitsfaktoren. Zwar weisen Unterschiede in den Effektstärken darauf hin, dass die Instrumente je spezifische Aspekte von Inklusion betonen, insgesamt rechtfertigen die Ergebnisse jedoch die Annahme, dass das zugrundeliegende Konzept von Einstellungen bezüglich Inklusion weitgehend überlappt.}}, author = {{Gorges, Julia and Grumbach, Jasmin and Micheel, Sabrina A. and Neumann, Phillip}}, issn = {{2190-622X}}, journal = {{Diagnostica}}, keywords = {{Inklusion, Einstellungen, Inclusion, BiFoKi}}, number = {{4}}, pages = {{235--245}}, publisher = {{Hogrefe Publishing Group}}, title = {{{Erfassung von Einstellungen zu Inklusion mit SACIE, EFI-L und KIESEL}}}, doi = {{10.1026/0012-1924/a000253}}, volume = {{66}}, year = {{2020}}, } @inbook{34490, abstract = {{In diesem Beitrag wird die Frage diskutiert, ob und welche diagnostischen Konzepte in einem inklusiven Schulsystem umgesetzt werden können und sollten und welche Konsequenzen sich daraus für die Erforschung inklusiver Modelle und Praktiken ergeben. Einem historischen Abriss über die Entwicklung unterschiedlicher diagnostischer Perspektiven hinsichtlich der Feststellung sonderpädagogischen Unterstützungsbedarfs folgt eine kritische Diskussion unter den Stichworten Statusdiagnostik versus Prozessdiagnostik. Vor diesem Hintergrund werden Einsatzbereiche, Vorzüge und Nachteile von formellen und informellen Verfahren aus inklusions- und sonderpädagogischer Perspektive betrachtet. Anschließend erfolgt eine Systematisierung unterschiedlicher Zielsetzungen (sonder-)pädagogischer Diagnostik unter besonderer Berücksichtigung ihrer Einsatzbereiche und Umsetzungsformen. Deren möglicher Informationsgehalt sowie die jeweiligen Konsequenzen für empirische Studien in der Bildungsforschung werden zum Abschluss diskutiert. }}, author = {{Neumann, Phillip and Lütje-Klose, Birgit}}, booktitle = {{Schüler*innen mit sonderpädagogischem Förderbedarf in Schulleistungserhebungen}}, editor = {{Gresch, Cornelia and Kuhl, Poldi and Grosche, Michael and Sälzer, Christine and Stanat, Petra}}, isbn = {{9783658276072}}, keywords = {{Inklusion, Diagnostik, Kategorisierung, De-Kategorisierung}}, pages = {{3--28}}, publisher = {{Springer Fachmedien Wiesbaden}}, title = {{{Diagnostik in inklusiven Schulen – zwischen Stigmatisierung, Etikettierungs-Ressourcen-Dilemma und förderorientierter Handlungsplanung}}}, doi = {{10.1007/978-3-658-27608-9_1}}, year = {{2020}}, } @article{34488, author = {{Wild, Elke and Lütje-Klose, Birgit and Gorges, Julia and Neumann, Phillip and Grüter, Sandra and Weber, Antonia and Goldan, Janka}}, issn = {{1431-2859}}, journal = {{SEMINAR - Lehrerbildung und Schule}}, keywords = {{BiFoKi, Inklusion, Fortbildung, Schulentwicklung, Kooperation, Eltern, Schule-Eltern-Kooperation, Bildungspartnerschaften}}, number = {{4}}, pages = {{56--68}}, title = {{{Kooperation als Schlüssel - Das "Bielefelder Fortbildungskonzept zur Kooperation an inklusiven Schulen" (BiFoKi)}}}, volume = {{26}}, year = {{2020}}, } @techreport{34590, author = {{Mehring, Oliver and Olsson, Per and Sievers, Soenke and Sofilkanitsch, Christian}}, publisher = {{TRR}}, title = {{{Co-movement of Price and Intrinsic Value-Does Accounting Information Matter?}}}, year = {{2020}}, } @techreport{34595, author = {{Mehring, Oliver and Olsson, Per and Sievers, Sönke and Sofilkanitsch, Christian}}, publisher = {{TRR}}, title = {{{Co-movement of Price and Intrinsic Value-Does Accounting Information Matter?}}}, year = {{2020}}, } @techreport{34636, author = {{Mehring, Oliver and Müller, Jens and Sievers, Sönke and Sofilkanitsch, Christian}}, publisher = {{TRR}}, title = {{{Does Learning About Low GAAP Reporting Quality Change Investors’ Perceptions of Aggressive Non-GAAP Reporting Choices?}}}, year = {{2020}}, } @techreport{34635, author = {{Mehring, Oliver and Olsson, Per and Sievers, Sönke and Sofilkanitsch, Christian}}, title = {{{Online Appendix to: Co-movement of Price and Intrinsic Value-Does Accounting Information Matter?}}}, year = {{2020}}, } @article{34638, author = {{Hüther, Niklas and Robinson, David T and Sievers, Sönke and Hartmann-Wendels, Thomas}}, journal = {{Management Science}}, number = {{4}}, pages = {{1756–1782}}, publisher = {{INFORMS}}, title = {{{Paying for performance in private equity: Evidence from venture capital partnerships}}}, volume = {{66}}, year = {{2020}}, } @techreport{34637, author = {{Schmitz, Alexander and Sievers, Sönke}}, title = {{{What are the effects of strategy consultants, financial, and legal M&A advisors on M&A success?}}}, year = {{2020}}, } @article{34643, author = {{Liphardt, L. and Suematsu, K. and Grundmeier, Guido}}, issn = {{0360-3199}}, journal = {{International Journal of Hydrogen Energy}}, keywords = {{Energy Engineering and Power Technology, Condensed Matter Physics, Fuel Technology, Renewable Energy, Sustainability and the Environment}}, number = {{5}}, pages = {{4399--4406}}, publisher = {{Elsevier BV}}, title = {{{Kinetic studies of cathode degradation on PEM fuel cell short stack level undergoing freeze startups with different states of residual water and current draws}}}, doi = {{10.1016/j.ijhydene.2020.10.273}}, volume = {{46}}, year = {{2020}}, } @article{32043, author = {{Albers, Timm and Weltzien, Dörte and Ali-Tani, Caroline and Döther, Sabrina and Söhnen, Sarah Aileen and Verhoeven, Nadja}}, journal = {{QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte}}, number = {{3}}, title = {{{Herausforderungen inklusiver Bildung in Kita-Teams – Konzipierung eines individualisierten Curriculums für Weiterbildung und Prozessbegleitung}}}, doi = {{10.21248/qfi.44}}, volume = {{2}}, year = {{2020}}, } @inbook{32029, author = {{Albers, Timm and Lichtblau, Michael}}, booktitle = {{Kooperation von KiTa und Grundschule ; Band 2: Digitalisierung, Inklusion und Mehrsprachigkeit}}, isbn = {{3556082039}}, publisher = {{{Carl Link, 2020}}}, title = {{{Transitionsprozess im Kontext von Inklusion: Theoretische und empirische Zugänge zur Gestaltung des Übergangs vom Elementar- in den Primarbereich}}}, year = {{2020}}, } @article{34789, author = {{Amiri, Habib and Glöckner, Helge and Schmeding, Alexander}}, issn = {{0044-8753}}, journal = {{Archivum Mathematicum}}, keywords = {{22A22, 22E65, 22E67, 46T10, 47H30, 58D15, 58H05}}, number = {{5}}, pages = {{307–356}}, title = {{{Lie groupoids of mappings taking values in a Lie groupoid}}}, doi = {{10.5817/AM2020-5-307}}, volume = {{56}}, year = {{2020}}, } @article{34787, author = {{Glöckner, Helge and Masbough, Niku}}, issn = {{0146-4124}}, journal = {{Topology Proceedings}}, keywords = {{54B10, 54D45, 54D50}}, pages = {{35–38}}, title = {{{Products of regular locally compact spaces are k_R-spaces}}}, volume = {{55}}, year = {{2020}}, } @unpublished{34808, abstract = {{For suitable finite-dimensional smooth manifolds M (possibly with various kinds of boundary or corners), locally convex topological vector spaces F and non-negative integers k, we construct continuous linear operators S_n from the space of F-valued k times continuously differentiable functions on M to the corresponding space of smooth functions such that S_n(f) converges to f in C^k(M,F) as n tends to infinity, uniformly for f in compact subsets of C^k(M,F). We also study the existence of continuous linear right inverses for restriction maps from C^k(M,F) to C^k(L,F) if L is a closed subset of M, endowed with a C^k-manifold structure turning the inclusion map from L to M into a C^k-map. Moreover, we construct continuous linear right inverses for restriction operators between spaces of sections in vector bundles in many situations, and smooth local right inverses for restriction operators between manifolds of mappings. We also obtain smoothing results for sections in fibre bundles.}}, author = {{Glöckner, Helge}}, booktitle = {{arXiv:2006.00254}}, title = {{{Smoothing operators for vector-valued functions and extension operators}}}, year = {{2020}}, } @unpublished{34807, abstract = {{Let $M$ be a compact, real analytic manifold and $G$ be the Lie group of all real-analytic diffeomorphisms of $M$, which is modelled on the (DFS)-space ${\mathfrak g}$ of real-analytic vector fields on $M$. We study flows of time-dependent real-analytic vector fields on $M$ which are integrable functions in time, and their dependence on the time-dependent vector field. Notably, we show that the Lie group $G$ is $L^1$-regular in the sense that each $[\gamma]$ in $L^1([0,1],{\mathfrak g})$ has an evolution which is an absolutely continuous $G$-valued function on $[0,1]$ and smooth in $[\gamma]$. As tools for the proof, we develop several new results concerning $L^p$-regularity of infinite-dimensional Lie groups, for $1\leq p\leq \infty$, which will be useful also for the discussion of other classes of groups. Moreover, we obtain new results concerning the continuity and complex analyticity of non-linear mappings on open subsets of locally convex direct limits.}}, author = {{Glöckner, Helge}}, booktitle = {{arXiv:2007.15611}}, title = {{{Lie groups of real analytic diffeomorphisms are L^1-regular}}}, year = {{2020}}, } @inbook{33752, author = {{Zierau, Cornelia}}, booktitle = {{Germanistik im Kontext des LMD-Systems. Didaktische und curriculare Herausforderung einer regionalen Hochschulpolitik für das Deutsch-Studium in Westafrika}}, editor = {{Ahouli, Akila}}, location = {{Lomé, Togo}}, pages = {{11--31}}, publisher = {{Peter Lang}}, title = {{{Literatur im Studium Deutsch als Fremdsprache und in der internationalen Germanistik: Sprachbildung und Förderung interkultureller Kompetenzen durch literarische Texte}}}, year = {{2020}}, } @inbook{33758, author = {{Zierau, Cornelia and Kofer, Martina}}, booktitle = {{Sprache als Herausforderung – Literatur als Ziel. Kinder- und jugendliterarische Texte und Medien als Ressource für sprachsensibles Lernen Teil 2}}, editor = {{Brüggemann, Jörn and Mesch, Birgit}}, location = {{Oldenburg}}, pages = {{249--265}}, title = {{{Sprachsensibler Literaturunterricht mit „Tschick“. Sprachliches und literar-ästhetisches Lernen in einem integrativen Deutschunterricht?}}}, year = {{2020}}, } @article{33759, author = {{Zierau, Cornelia and Jung, Ulla}}, journal = {{DaZ Sekundarstufe. Konzepte und Materialien: Übergänge gestalten – neu Zugewanderte unterrichten, Heft 1/2020}}, pages = {{pp. 5--7}}, title = {{{Übergänge gestalten – eine Herausforderung}}}, year = {{2020}}, } @inbook{33749, author = {{Zierau, Cornelia}}, booktitle = {{Peter Weiss Jahrbuch}}, editor = {{Beise, Arnd and Hofmann, Michael}}, location = {{Tunis}}, pages = {{113--134}}, publisher = {{Röhrig Universitätsverlag}}, title = {{{„Ich verkaufte ihm meinen Fastentag für 25 Kuruş und mit diesem Geld ging ich ins Kino.“ Mehrsprachigkeit und Übersetzung ,türkischer’ Kultur in Emine Sevgi Özdamars Roman „Das Leben ist eine Karawanserei“}}}, volume = {{29}}, year = {{2020}}, } @article{34882, author = {{Diester, Michel}}, journal = {{ffk Journal, Nr. 5}}, number = {{5}}, pages = {{316--328}}, title = {{{Weltenübergänge in Fargo}}}, year = {{2020}}, } @techreport{34593, author = {{Mehring, Oliver and Olsson, Per and Sievers, Soenke and Sofilkanitsch , Christian and Uhde, André and Eber, Michael}}, publisher = {{TRR}}, title = {{{Co-movement of Price and Intrinsic Value-Does Accounting Information Matter?}}}, year = {{2020}}, } @inbook{34970, author = {{Süßmann, Johannes}}, booktitle = {{Languages of Reform in the Eighteenth Century. When Europe Lost Its Fear of Change}}, editor = {{Richter, Susan and Maissen, Thomas and Albertone, Manuela}}, isbn = {{978-1-00-074052-3}}, pages = {{213–231}}, publisher = {{Routledge}}, title = {{{A Kind of Sovereignty? Legitimising Freedom of Contract in the 18th Century}}}, doi = {{https://doi.org/10.4324/9780367855017-10}}, year = {{2020}}, } @inbook{35032, author = {{Süßmann, Johannes}}, booktitle = {{Erinnerungsorte in Belgien. Instrumente lokaler, regionaler und nationaler Sinnstiftung}}, editor = {{Kamp, Hermann and Schmitz, Sabine}}, isbn = {{978-3-8376-4515-6}}, pages = {{113–136}}, publisher = {{transcript}}, title = {{{Albrecht und Isabella in Brüssel. Eine Spurensuche}}}, doi = {{https://doi.org/10.14361/9783839445150-007}}, year = {{2020}}, } @inbook{34972, author = {{Ehland, Christoph and Laak, Lothar van and Münzmay, Andreas and Schmitz, Sabine and Süßmann, Johannes}}, booktitle = {{Peter Paul Rubens und der Barock im Norden. Katalog zur Ausstellung im Erzbischöflichen Diözesanmuseum Paderborn}}, editor = {{Stiegemann, Christoph}}, isbn = {{978-3-7319-0956-9}}, pages = {{198–215}}, publisher = {{Michael Imhof}}, title = {{{Barock im Norden. Kommunikationspraxis und Kulturtransfer}}}, year = {{2020}}, } @misc{35075, author = {{Hansen, Christin}}, booktitle = {{Jahrbuch kulturelle Kontexte des Östlichen Europa }}, pages = {{262--265}}, title = {{{Gehl, Katerina/Roth, Klaus/Spiritova, Marketa (Hg.): Eigenbilder – Fremdbilder – Identitäten. Wahrnehmungen im östlichen Europa im Wandel (Ethnographische Perspektiven auf das östliche Europa, 5), Bielefeld 2020}}}, volume = {{61}}, year = {{2020}}, } @inproceedings{18390, abstract = {{ Efficiencies and energy yields of microinverters available on the market during 2014‒2020 have been measured, compared, and ranked. Conversion efficiencies as a function of load have been measured indoors with high accuracy and ranked according to Euro- and CEC weightings. Energy yields have been measured outdoors via identical and calibrated crystalline silicon PV modules of 215 Wp each. Inverters with two inputs have been fed by two of those modules. DC input, AC power output and energy yield of each micro-inverter have been recorded by individual calibrated electricity meters. Apparently, some inverters have been optimized for high irradiance levels and ranked better at the CEC efficiency ranking, others performed very well also at low irradiance levels, thus ranking higher at in the EU efficiency ranking. Efficiency ranks are slightly deviating from rankings by energy yield measurements. At one inverter, a slow MPPT algorithm that barely could follow quickly changing irradiance levels is most probably responsible for this effect. Another inverter switched off for a while after operation at high power, another one failed permanently. Apparently, some inverters are been optimized to show excellent datasheet ratings for EU- or CEC- efficiency. On the other hand, two inverters (each featuring two inputs) did not show an outstanding performance at the EU- and CEC-ratings but achieved leading ranks for AC energy yields. For the customer, AC yield is a major performance indicator of a microinverter and should be included in the datasheet.}}, author = {{Krauter, Stefan and Bendfeld, Jörg}}, booktitle = {{Proceedings of the EUPVSEC 2020}}, isbn = {{ 3-936338-73-6}}, location = {{online}}, pages = {{935 -- 938}}, title = {{{Micro-Inverters: An Update of Comparison of Conversion Efficiencies and Energy Yields}}}, doi = {{10.4229/EUPVSEC20202020-4DO.7.2}}, year = {{2020}}, } @inproceedings{16857, author = {{Krauter, Stefan and Bendfeld, Jörg}}, booktitle = {{Tagungsband des 35. Symposiums für Photovoltaische Solarenergie, Kloster Banz, Bad Staffelstein (Deutschland)}}, location = {{Bad Staffelstein}}, title = {{{Einfluss der Betriebstemperatur auf den Wirkungsgrad von Modul-Wechselrichtern für PV-Netzeinspeisungen}}}, year = {{2020}}, } @inproceedings{19393, abstract = {{To provide a simple instrument to operate residential Load-Shifting or Demand-Side-Management systems, the measurement of the actual grid frequency seems to be an appropriate method. Due to the present inflexibility and the lack of sufficient throttling capabilities of lignite and nuclear power plants, a surplus of electricity generation occurs during periods of high wind and solar power generation. While the specific CO2- emission is decreasing then ‒ due to the increased share of Renewables, the grid frequency is increasing (to a certain limit). Using the grid frequency as an indicator to switch-on and off certain loads (loads that do not require power permanently (e.g. dishwashers, washing machines, dryers, fridges and freezers, heaters) could provide a simple, inexpensive demand-side management indicator to lower specific CO2‒emssions and costs (if a dynamic consumption tariff is available). To check the truthfulness of that hypothesis, the grid and frequency data of the German grid of the year 2018 have been collected and a the correlation between grid frequency, power surplus, share of renewables vs. CO2-contents and price at the European energy exchange (EEX) have been calculated. The results show: Correlation between frequency and share of renewables is quite low (r = 0.155) due to the fact that primary grid control quickly compensates deviations from the 50 Hz nominal frequency. There is a good anti-correlation (r = - 0.687) between the EEX‒prices and the share of renewables in the grid. Over the years, correlation between electricity trading prices (EEX) and CO2 emissions is quite good (r =0.665), within the one year (2018) that correlation almost doesn’t exist, possibly due to the inflexibility of the bulky lignite power plants that even operate at negative prices. }}, author = {{Krauter, Stefan and Zhang, L.}}, booktitle = {{Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020.}}, issn = {{ 3-936338-73-6}}, keywords = {{Keywords: Load-Shifting, Demand-Side-Management, DSM, grid frequency, EEX, electricity trading prices, renewable share, flexibility, emissions, CO2}}, location = {{online}}, pages = {{1815 -- 1817}}, title = {{{Triggering Demand‒Side‒Management: Correlation of electricity prices, share of renewables, CO2‒contents, and grid‒frequency in the German electricity grid.}}}, doi = {{10.4229/EUPVSEC20202020-6BV.5.9}}, year = {{2020}}, } @inproceedings{19390, abstract = {{Due to the strong reduction of PV prices, storage plays a dominating role in overall system costs. A steeper elevation angle would result in a more balanced seasonal PV yield, at the cost of PV yield reductions during summer, but allowing reduced storage capacities. Additionally, the effect of a single-axis tracking system has been investigated, generating more electricity during the morning and evening hours, thus reducing daily storage requirements. The necessary PV size and storage capacities required for the German energy supply (1,500 TWh after electrification of all sectors) via 100% renewable energies and a 50% solar share have been calculated via the HOMER Pro software, considering the bridging of periods of "dark lulls“ in winter, using costs of 2030 (Table 1). Results: The increase of module elevation angles above the typical 30° leads to a reduction of investment and supply costs. The optimum is reached at a cost reduction of -1.5% for an elevation angle at the latitude of the installation site. An explanation is that high elevation angles are favorable for clear winter days, but not at all for the critical days with diffuse irradiance only, so the battery capacity must be increased. For the same reason, tracking systems do not offer any cost advantage (at least for the ones without an option for horizontal positioning during diffuse days).}}, author = {{Krauter, Stefan and Rustemovic, D. and Khatibi, Arash}}, booktitle = {{Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020}}, isbn = {{3-936338-73-6}}, keywords = {{Energy Storage, PV system integration, Large Grid-connected PV systems, Simulation, Energy Supply Options}}, location = {{online}}, pages = {{1818 -- 1819}}, title = {{{Reduction of required storage capacities for a 100% renewable energy supply in Germany, if new PV systems are installed with east-west tracking systems at increased elevation angles}}}, doi = {{10.4229/EUPVSEC20202020-6BV.5.10}}, year = {{2020}}, } @inproceedings{18387, abstract = {{ During comparative measurements of different PV microinverters, two yield issues came up that could not be explored via conventional efficiency measurements, but do have a significant impact on electrical energy yield: First category of issues are either sluggish or nervously acting maximum–power–point–tracking devices, which lead to reduced energy yields. The other category of issues is thermal: As a first explanation for observed reduced energy yields, it has been assumed that the conversion efficiency degrades at higher operating temperatures. This matter has been investigated in this article: A change in conversion efficiency could not be observed for elevated operation temperatures up to 50°C, despite high-precision and repeated measurements. But it was found that some inverters temporarily interrupted (or entirely stopped) operation after long periods of running at high temperatures. Also, a reduction in potential maximum power output has been detected for those inverters. Summarizing: With a high degree of certainty it can be stated that those reported yield losses have been caused by the temporary shutdowns and power limitations of the inverters.}}, author = {{Krauter, Stefan and Bendfeld, Jörg}}, booktitle = {{Proceedings of the EU PVSEC 2020 }}, issn = {{3-936338-73-6}}, keywords = {{AC-modules, Microinverter, Power Conditioning, Thermal Performance, Ventilation, Stability, Efficiency, Yield}}, location = {{online}}, pages = {{1179 -- 1180}}, title = {{{Elevated Temperatures Affecting Efficiency, Overall Performance and Energy Yield of PV Microinverters}}}, doi = {{10.4229/EUPVSEC20202020-4AV.3.6}}, year = {{2020}}, } @inproceedings{19383, abstract = {{Due to the present inflexibility and the lack of sufficient throttling capabilities of lignite and nuclear power plants, a surplus of electricity generation occurs during periods of high wind and solar power generation in the German electricity grid. While the specific CO2-emission is decreasing then - due to the increased share of Renewables, the grid frequency should be increasing (to a certain limit). Using the grid frequency as an indicator to switch-on and -off certain loads (loads that do not require power permanently (e.g. dishwashers, washing machines, dryers, fridges and freezers, heaters) could provide a simple, inexpensive demand-side-management indicator to lower specific CO2-emissions and costs (if a dynamic consumption tariff is applied). To check the truthfulness of that hypothesis, the grid and frequency data of the German grid of the year 2018 have been collected and the correlations between grid frequency, share of renewables, CO2-contents, and actual price at the European energy exchange (EEX) have been calculated. The results show: Correlation between grid frequency and the share of renewables is quite low (r=0.155) due to the fact that primary grid control quickly compensates deviations from the 50 Hz nominal frequency. As expected, there is a good anti-correlation (r=-0.687) between the EEX-prices and the share of renewables in the grid. Over the years, correlation between electricity trading prices (EEX) and CO2 emissions is quite good (r=0.665), within the one year (2018) that correlation almost doesn't exist, possibly due to the inflexibility of the bulky lignite baseload power plants that even operate at negative prices.}}, author = {{Krauter, Stefan and Zhang, L.}}, booktitle = {{Proceedings of the 47th IEEE Photovoltaic Specialists Conference (PVSC 47) 2020}}, keywords = {{CO2, EEX, Grid frequency, DSM, electricity price, Renewable share}}, location = {{online}}, pages = {{1672--1674}}, title = {{{Correlation of grid-frequency, electricity prices, share of Renewables and CO2-contents of German electricity grid to enable inexpensive triggering of Demand-Side-Management}}}, doi = {{10.1109/PVSC45281.2020.9300487}}, year = {{2020}}, } @inproceedings{16899, abstract = {{To compare efficiency and yield of many micro-inverters available on the world market in 2014-2020, an in- and outdoor test laboratory at the University of Paderborn has been set up. The inverters have been fed by identical and calibrated crystalline silicon PV modules of 215 Wp. To monitor accurately DC input, AC power output and energy yield, each of the micro-inverters has been equipped with a calibrated electricity meter. For micro-inverters requiring control units for grid-feeding that has been acquired also. The comparison covers efficiency-load characteristics as well as electrical energy yields. Purchase costs vary considerably between the models in comparison, sometimes inverter costs are higher than module costs, particularly if an additional grid-connection or interface device is needed for operation. The weighted conversion efficiency according to EU and CEC standards has been measured and calculated. While some inverters have been optimized for high irradiance levels, they ranked better at the CEC efficiency, others performed very well also for low irradiance levels, thus ranking higher at in the EU-efficiency tables. These results are deviating from the actual energy yield measurements, which show a slightly different ranking. At one inverter, an accurate, but very slow MPPT algorithm that barely could follow quickly changing irradiance levels could be the reason for this effect. Another inverter switched off after operation at high power output for a while. Apparently, some inverters are been optimized to show excellent EU and CEC efficiency ratings. Two of the inverters featuring two inputs did not show an exceptional performance at the EU- and CEC-ratings, but they achieved top ranks at the AC energy yield for the first years. For the customer, the AC yield is a major performance indicator of any microinverter and should be included in the datasheet.}}, author = {{Krauter, Stefan and Bendfeld, Jörg}}, booktitle = {{Proceedings of the 47th IEEE Photovoltaic Specialists Conference (PVSC 47) JUNE 15 - AUGUST 21, 2020 VIRTUAL MEETING}}, issn = {{ 0160-8371}}, keywords = {{yield, AC, micro-inverter, MPPT, CEC rating, EU efficiency, Photovoltaic, Solar}}, location = {{VIRTUAL MEETING}}, pages = {{1429--1432}}, publisher = {{IEEE}}, title = {{{Comparison of Microinverters: Update on Rankings of Conversion Efficiencies and Energy Yields}}}, doi = {{10.1109/PVSC45281.2020.9300953}}, year = {{2020}}, } @inproceedings{16855, author = {{Krauter, Stefan and Zhang, L.}}, booktitle = {{Tagungsband des 35. Symposiums für Photovoltaische Solarenergie, Kloster Banz, Bad Staffelstein (Deutschland)}}, location = {{Bad Staffelstein}}, title = {{{Eignung der Netzfrequenz als Instrument der Entscheidungsfindung zur Auslösung von Lastverschiebungen bei niedrigen spezifischen CO2-Emissionen und EEX-Handelspreisen}}}, year = {{2020}}, }