TY - JOUR A1 - Bier, Markus T1 - Non-equilibrium steady states of electrolyte interfaces JF - New Journal of Physics N2 - The non-equilibrium steady states of a semi-infinite quasi-one-dimensional univalent binary electrolyte solution, characterised by non-vanishing electric currents, are investigated by means of Poisson-Nernst-Planck (PNP) theory. Exact analytical expressions of the electric field, the charge density and the number density are derived, which depend on the electric current density as a parameter. From a non-equilibrium version of the Grahame equation, which relates the total space charge per cross-sectional area and the corresponding contribution of the electric potential drop, the current-dependent differential capacitance of the diffuse layer is derived. In the limit of vanishing electric current these results reduce to those within Gouy-Chapman theory. It is shown that improperly chosen boundary conditions lead to non-equilibrium steady state solutions of the PNP equations with negative ion number densities. A necessary and sufficient criterion on surface conductivity constitutive relations is formulated which allows one to detect such unphysical solutions. KW - Poisson-Nernst-Planck theory, non-equilibrium steady state, electrolyte interface, Gouy-Chapman model Y1 - 2024 UR - https://doi.org/10.1088/1367-2630/ad19a9 VL - 26 IS - 1 SP - 013008 ER - TY - JOUR A1 - Storath, Martin A1 - Weinmann, Andreas T1 - Smoothing Splines for Discontinuous Signals JF - Journal of Computational and Graphical Statistics Y1 - 2023 U6 - https://doi.org/10.1080/10618600.2023.2262000 SN - 1061-8600 VL - 33 IS - 2 SP - 651 EP - 664 PB - Informa UK Limited ER - TY - CHAP A1 - Storath, Martin A1 - Weinmann, Andreas T1 - Solving higher-order Mumford-Shah models T2 - INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS: ICNAAM2022 Y1 - 2024 U6 - https://doi.org/10.1063/5.0210598 SN - 0094-243X PB - AIP Publishing ER - TY - CHAP A1 - Ziegler, Cedric C. A1 - Ising, Julia A1 - Dobhan, Alexander A1 - Storath, Martin T1 - Computer Vision in Reusable Container Management : Requirements, Conception, and Data Acquisition T2 - Logistik und Supply Chain Management N2 - In container management, the reuse of small load carriers is a business alternative to disposal carriers. Reusable container management is furthermore a solution to improve the environmental impact of the logistic industry. The sorting and stock management of small load carriers are today primarily manual work and have consequently a low level of automation. In order to increase the automation of returnable containers, it is crucial to establish a computer vision system that (i) classifies the containers and (ii) detects potential defects or stains. This paper provides an overview and a discussion of the applications that are already in use. Object detection is necessary for many actions in the container management business processes, such as inventory and stock management. Detection of defects on the small load carrier is required for scrapping the carriers to ensure a smooth process in any business process involving the carrier and to decide whether additional process steps, e.g., cleaning, are required. The literature review in this paper establishes the demand for computer vision detection and shows the project setup necessary to conduct research in this area. The comparison with other applications of defect and anomaly detection supports the applicability and shows the need for further research in this specific academic field. This leads to a project outline and the research provides the technical implementation of the detections in container management. Accordingly, the research provides a work- flow guide from data acquisition to a high-quality dataset of labeled anomalies of small load carriers. Y1 - 2023 SN - 9783863099411 U6 - https://doi.org/https://10.20378/irb-92408 SN - 2750-8277 SP - 107 EP - 122 PB - University of Bamberg Press ER - TY - CHAP A1 - Targitay, Deniz A1 - Roth, Lisa A1 - Zink, Markus H. A1 - Küchler, Andreas A1 - Bier, Markus A1 - Kobus, Maja A1 - Geißler, Michael A1 - Schlittler, Balz T1 - An FEM simulation model of oil-pressboard insulating systems for HVDC transformers T2 - 23rd International Symposium on High Voltage Engineering (ISH 2023) N2 - In this contribution, a simulation model for the description of the nonlinear dielectric behaviour of an insulation system composed of mineral oil and oil-impregnated pressboard is presented. The model was verified by comparing the simulation results with electric field and current measurements. At the outset, the ideal case, where a homogeneous initial charge carrier distribution according to the definition of ohmic conductivity is present, is analysed to establish the preliminary foundations pertaining to a typical measurement. Following that, the influence of distinct charge carriers on the measured quantities are investigated by altering their parametrisations. In contrast to the ideal case, a real measurement reveals a current trend, that can be explained by an excess amount of initial charge carriers related to the oil-impregnated pressboard layers. Potential possibilities to the origin of the surplus are discussed. Furthermore, it is shown that the dissociable and intrinsic charge carriers alone can reconstruct the measured quantities in terms of the transient behaviour. This points out that, for the field strength studied here ( E ≤ 1 kV/mm ), the charging of the highly resistive pressboard barriers is dominated by the dissociation of charge carriers in the oil gaps. KW - Mineral oil KW - Oil-impregnated pressboard KW - Poisson-Nernst-Planck theory KW - Ion drift KW - Electric current Y1 - 2023 UR - https://doi.org/10.1049/icp.2024.0488 PB - Institution of Engineering & Technology ER - TY - JOUR ED - Grebner, Robert T1 - FHWS Science Journal (5, 1) BT - BEST-FIT: Module zur Verbesserung von Bestehensquoten und Praxisfitness von Absolvierenden N2 - [D]ie Beiträge im vorliegenden FHWS Science Journal [dienen] dazu, einen Ein- und Überblick über eine Auswahl erfolgreicher Maßnahmen zu geben, die im Rahmen des BEST-FIT-Projektes entwickelt wurden und die erarbeiteten Methoden, Konzepte und Ergebnisse mit interessierten Lehrenden zu teilen. Nur wenn es gelingt, erfolgreiche Maßnahmen auch nach dem Ende der Förderperiode an der FHWS weiterzuführen und auf weitere Studiengänge und Fakultäten zu übertragen, können die Ziele von BEST-FIT und insgesamt des Qualitätspakts Lehre nachhaltig und dauerhaft erreicht und gesichert werden. T3 - FHWS Science Journal - 5.2021, 1 KW - BEST-FIT Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:863-opus-19135 SN - 2196-6095 VL - 5 (2021) IS - 1 CY - Würzburg ER - TY - RPRT A1 - Wunderlich, Claudia T1 - M A K Halliday’s Systemic Functional Linguistics and the Hermeneutic Spiral: Interpreting Alajos Unger’s late Nazarene painting Baptism of Vajk (1842) N2 - Michael O’Toole’s functional semiotic model based on Hallidayan linguistics is applied to a hermeneutic analysis of 19th century art of the Austrian Empire. The obscure painter Alajos Unger (1814-1848) from Győr, Hungary, was the son of playing-card maker Mátyás Unger the Elder (1789–1862) and a designer of award-winning playing cards during Vormärz (the Reform Era in Hungary). He trained at the Vienna Art Academy, and two of his paintings (The recapture of Győr 1598, 1840; Family portrait, 1843) are in the collection of the Hungarian National Gallery. His Baptism of Vajk (1842) is the only such Nazarene history painting known in Hungarian art. Nazarene art, recently reappraised as modern, conceptual art, influenced the British Pre-Raphaelites and thus modern Hungarian art. Due to its symbolic nature, it is ideal for functional semiotic interpretation. Such an analysis of Unger’s Baptism of Vajk identifies its patriotic, yet conservative, Catholic pro-Habsburg stance promoting dynastic piety (Pietas Hungarica) and a supra-national, cosmopolitan stance opposed to nationalist rhetoric as part of a cycle of paintings created by the artist. KW - functional semiotics KW - art semiotics KW - Habsburg monarchy KW - nineteenth-century art Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:863-opus-57169 ER - TY - THES A1 - Strauß, Sebastian ED - Frühbrodt, Prof. Dr. Lutz T1 - Qualitätsstandards im wirtschaftspolitischen Journalismus BT - Eine Diskursanalyse der medialen Berichterstattung zur Novellierung des Gebäudeenergiegesetzes N2 - Im Jahr 2023 dominierte kaum ein wirtschaftspolitisches Thema die öffentliche Debatte so stark wie die Novellierung des Gebäudeenergiegesetzes (GEG). Die vorliegende Forschungsarbeit widmet sich der Untersuchung der medialen Darstellung dieses Gesetzesentwurfs und analysiert die vorherrschenden Diskurspositionen in der öffentlichen Debatte. Ziel ist es, Qualitätsstandards für die wirtschaftspolitische Berichterstattung bei kontroversen Themen abzuleiten und einen praxisorientierten Leitfaden für Journalisten zu entwickeln. Unter Anwendung der Wissenssoziologischen Diskursanalyse nach Keller werden Artikel aus BILD, taz, F.A.Z. und SZ empirisch analysiert. Die Ergebnisse zeigen vier dominante Diskurspositionen: „ausgewogen-sachlich“ (38,02%), „kritisch-sachlich“ (24,79%), „kritisch-rhetorisch“ (29,75%) und „befürwortend-sachlich“ (7,44%). Die Berichterstattung ist überwiegend sachlich, wobei in 42,1% der Artikel eine kritische Tonalität zu erkennen ist. Qualitätsmängel treten vor allem in „kritisch-rhetorischen“ Artikeln auf, während „ausgewogen-sachliche“ und „kritisch-sachliche“ Positionen durch faktenbasierte und gut strukturierte Darstellungen hervorstechen. Aus den Ergebnissen leitet die Studie neun Qualitätskriterien ab, die praxisorientierte Empfehlungen für den wirtschaftspolitischen Journalismus bieten. Diese Untersuchung unterstreicht die Bedeutung von Ausgewogenheit, Tiefgründigkeit, Vielfalt und Neutralität in der Berichterstattung. Zudem sind die Kriterien Anwendbarkeit, Zugänglichkeit (einschließlich Unterhaltsamkeit), Integrität und Selbstkritik entscheidend für die Aufbereitung kontroverser und komplexer Themen. KW - Wirtschaftsjournalismus KW - Qualitätssicherung KW - Heizungsgesetz KW - Diskursanalyse Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:863-opus-57209 CY - Würzburg ER -