@book{Schork2025, author = {Schork, Sabrina}, title = {Future Skills an Hochschulen: Ein Spannungsfeld?}, editor = {Schork, Sabrina}, publisher = {Beltz Juventa}, address = {Weinheim}, isbn = {978-3-7799-8762-8}, pages = {207}, year = {2025}, abstract = {Das Buch richtet sich an Hochschullehrende, die Future Skills verstehen und vermitteln m{\"o}chten. Ziel ist eine pr{\"a}zise Definition dieser Kompetenzen, abgeleitet aus etablierten Frameworks, die Future Skills als essentiell f{\"u}r eine sich wandelnde Welt beschreiben. Es beleuchtet die Aufgaben der Hochschulen und unterschiedliche Perspektiven von Lehrenden und Studierenden. Projekte an verschiedenen Hochschulen bieten Einblicke in die praktischen Herausforderungen und Erkenntnisse. Ein unverzichtbarer Leitfaden f{\"u}r die aktive Gestaltung von Lehre und Hochschulentwicklung.}, subject = {Hochschulunterricht}, language = {de} } @inproceedings{Klopp2025, author = {Klopp, Marco}, title = {An Empirical Survey of Students' and Professors' Perspectives on Computer Science University Teaching}, series = {Proceedings IEEE TALE}, volume = {2024}, booktitle = {Proceedings IEEE TALE}, publisher = {IEEE}, isbn = {979-8-3503-7623-4}, doi = {doi.org/10.1109/TALE62452.2024.10834372}, pages = {8}, year = {2025}, abstract = {This paper presents a study which examines the pedagogical-interactional dimensions in computer science education at universities of applied sciences, focusing on the expectations and perceptions of students and professors. Data were collected using a modified version of the Learning Culture Inventory (LCI) questionnaire and analyzed both descriptively and inferentially. The descriptive statistics reveal differences in the mean values between the ideal and real states of educational conditions as perceived by students and professors. Inferential statistical analyses using t-tests identified significant differences between the perceptions of the two groups. The effect size Cohen's d was also calculated to determine the strength of the existing difference. The analyses show that there are significant differences in many dimensions of the LCI between the perspectives of students and professors. These differences are often associated with high effect sizes. The results therefore indicate that the students' expectations and perceptions deviate (considerably) from the professors' perspectives.}, subject = {Informatikstudium}, language = {en} } @article{Schmitt2025, author = {Schmitt, Joachim}, title = {Mentales Lagerfeuer}, series = {Zeitschrift f{\"u}r Unternehmensentwicklung und Change Management}, volume = {1/2025}, journal = {Zeitschrift f{\"u}r Unternehmensentwicklung und Change Management}, number = {01/2025}, editor = {Leiskau, Jan}, doi = {doi.org/10.5771/0724-6110}, pages = {1 -- 120}, year = {2025}, abstract = {Eigenverantwortung und Kooperation sind in einer modernen Organisationskultur gleichermaßen gefragt. Das hier pr{\"a}sentierte «Peer-learning-Format» wirkt in diesem Sinne wie ein Lagerfeuergespr{\"a}ch: Kleine Gruppen treffen sich, tauschen sich vertieft zu Grundfragen des Zusammenlebens aus und gehen gewandelt daraus hervor. Eine Evaluation der TH Aschaffenburg zeigt, dass mit diesem Format gr{\"o}ßere Teilnehmergruppen in die orientierte Entwicklung von Mindset und Kollaborationskultur eingebunden werden k{\"o}nnen. Dabei wird deutlich, dass diese «Learning-Circles» keine Selbstl{\"a}ufer sind, sondern eine Begleitarbeit im Sinne des Facilitation brauchen.}, subject = {Organisationsentwicklung}, language = {de} } @article{SchleierEsenHellmann2025, author = {Schleier, Max and Esen, Cemal and Hellmann, Ralf}, title = {Vision transformer based cut interruption detection and prediction of laser fusion cutting from monitored melt pool images}, series = {Journal of Laser Applications}, volume = {37}, journal = {Journal of Laser Applications}, number = {1}, publisher = {Laser Institute of America}, issn = {1042-346X}, doi = {10.2351/7.0001611}, year = {2025}, abstract = {Incomplete cuts during laser fusion cutting result in a closed kerf, preventing the workpiece from detaching from the sheet and resulting in rework or rejection. We demonstrate the approach of a vision transformer, used for image classification, to detect cut interruption during laser fusion cutting in steel and aluminum. With events impending an incomplete cut in steel, we attempt to predict cut interruption before they even occur. To build a data set for training, cutting experiments are carried out with a 4 kW fiber laser, forcing incomplete cuts by varying the process parameters such as laser power and feed rate. The thermal radiation from the process zone during the cutting process is captured with a size of 256 × 256 px2 at sample rates of 20 × 103 fps. The kerf is recorded with a spectral sensitivity between 400 and 700 nm, without external illumination, which enables the melt to be observed in the range of the visual spectrum. The vision transformer model, which is used for image classification, splits the image into patches, linearly embedded with an added position embedding, and fed to a standard transformer encoder. For training the model, a set of images was labeled for the respective classes of a complete, incomplete, and impending incomplete cut. With the trained model, incomplete cuts in steel and aluminum can then be recognized and impending incomplete cuts in steel can be predicted in advance.}, subject = {Laserschneiden}, language = {en} } @article{MarxSeefeldtHaskeetal.2025, author = {Marx, Jan and Seefeldt, Malte and Haske, Damian and Lutz, Christian and Hellmann, Ralf and Esen, Cemal and Ostendorf, Andreas}, title = {Holographic freeform micro hole processing using Bessel beams}, series = {Optics \& Laser Technology}, volume = {183}, journal = {Optics \& Laser Technology}, publisher = {Elsevier BV}, issn = {0030-3992}, doi = {10.1016/j.optlastec.2024.112287}, year = {2025}, abstract = {Bessel beams are advantageous tools for micro drilling applications due to their diffraction-free properties, their long focal length, and their small focal spot diameter. However, their application in industry is limited because they are challenging to integrate into flexible beam shaping systems. This work is intended to overcome limitations in flexibility by presenting a new approach paving the way to high-aspect ratio freeform holes. Therefore, a spatial light modulator was integrated into an axicon-based setup to merge diffraction-free ablation with the flexibility of holographic spatial beam shaping. A dynamic change of the phase hologram displayed on the spatial light modulator during the process allows for the generation of arbitrary ablation geometries. In contrast to other holographic approaches, the diffraction-free nature of the Bessel beam allows ablation over an extended focal depth without any focus control needed. The applicability of the approach was demonstrated by processing arbitrary hole shapes, such as ellipses, squares, or star-shapes. The hole sizes of the freeform holes range from 4 μm to 80 μm. Furthermore, up-scaling of the process is demonstrated by using the setup for generation of multi-Bessel spots.}, subject = {Mikrobearbeitung}, language = {en} } @article{ButzSeidl2025, author = {Butz-Seidl, Annemarie}, title = {G{\"u}terstandsschaukel als "Steuerfalle" - Vorteile nutzen und Fehler vermeiden}, series = {Erbfolgebesteuerung}, volume = {2025}, journal = {Erbfolgebesteuerung}, number = {03}, editor = {IWW Institut f{\"u}r Wissen in der Wirtschaft GmbH,}, pages = {57 -- 64}, year = {2025}, abstract = {Als G{\"u}terstandsschaukel wird die vorzeitige Beendigung des G{\"u}terstands der Zugewinngemeinschaft durch notarielle Beurkundung und die gleichzeitige Vereinbarung des G{\"u}terstands der G{\"u}tertrennung verstanden. In der gleichen notariellen Urkunde oder nach Verstreichen einer "Schamfrist" kann wieder der G{\"u}terstand der Zugewinngemeinschaft vereinbart und - bei Bedarf - wieder beendet werden - man "schaukelt" einmal weg vom G{\"u}terstand der Zugewinngemeinschaft und wieder zur{\"u}ck. Anhand von praxisrelevanten Fallgestaltungen will dieser Beitrag einen {\"U}berblick {\"u}ber die Vorteile und Risiken sowie die inhaltlichen Gestaltungsm{\"o}glichkeiten geben. Zudem wird der Frage nachgegangen, ob eine missgl{\"u}ckte G{\"u}terstandsschaukel "reparabel" ist.}, subject = {G{\"u}terstand}, language = {de} } @article{DoehringStanikZeisingetal.2025, author = {D{\"o}hring, Thorsten and Stanik, Eva and Zeising, Sebastian and Meissner, Martin}, title = {Astronomy events at Aschaffenburg University to attract future students}, series = {Acta Polytecnica}, volume = {2025}, journal = {Acta Polytecnica}, number = {65 (1)}, pages = {1 -- 6}, year = {2025}, abstract = {In 2023, the German Federal Ministry of Education and Research and the German organisation for science communication "Wissenschaft im Dialog" jointly proclaimed a "Science Year 2023" in Germany with the motto "Our Universe". One of the numerous events that have been supported has been that of the project "Zirkus UNI-versum", which took place in summer 2023 at Aschaffenburg University of Applied Sciences. This project, and other activities for schools, intend to stimulate the interest of pupils in STEM subjects and to attract future engineering students.}, subject = {Astronomie}, language = {en} } @inproceedings{DoehringStanikPregleretal.2025, author = {D{\"o}hring, Thorsten and Stanik, Eva and Pregler, Jan and K{\"a}tker, Anna and Busch, Uwe and Friedrich, Peter}, title = {Konzeption eines Astronomie-Besucherexperiments f{\"u}r das Deutsche R{\"o}ntgen Museum}, series = {Bayerischer Tag f{\"u}r gute Lehre}, volume = {2025}, booktitle = {Bayerischer Tag f{\"u}r gute Lehre}, publisher = {Universit{\"a}t W{\"u}rzburg}, organization = {Technische Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {Das Deutsche R{\"o}ntgen Museum in Remscheid ist eine weltweit einzigartige Institution, die das Leben und Werk des ersten Physik Nobelpreistr{\"a}gers Wilhelm Conrad R{\"o}ntgen und die Auswirkungen seiner Entdeckung der R{\"o}ntgenstrahlung erforscht und dokumentiert Als integraler Bestandteil des Museums bietet das Museumslabor R{\"o}Lab die M{\"o}glichkeit, durch eigene Experimente praktische Erfahrungen zu verschiedenen Themen rund um R{\"o}ntgenstrahlung, Optik und Technik zu sammeln Im Rahmen eines gemeinsamen Entwicklungsprojekts konzipieren Studierende der TH Aschaffenburg derzeit ein Besucherexperiment zur astronomischen R{\"o}ntgenoptik f{\"u}r das Museumslabor Das neue Besucherexperiment soll nach seiner Realisierung junge Forscherinnen und Forscher f{\"u}r die faszinierende Welt der R{\"o}ntgenoptik und der R{\"o}ntgenastronomie begeistern.}, subject = {Deutsches R{\"o}ntgen-Museum}, language = {de} } @inproceedings{DoehringKriegerStanik2025, author = {D{\"o}hring, Thorsten and Krieger, Jochen and Stanik, Eva}, title = {Praxisschock im Studium - die Erstellung komplexer Angebote f{\"u}r Satellitenkomponenten}, series = {Bayerischer Tag f{\"u}r gute Lehre}, volume = {2025}, booktitle = {Bayerischer Tag f{\"u}r gute Lehre}, publisher = {Universit{\"a}t W{\"u}rzburg}, organization = {Technische Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {Die Lehrveranstaltung „Projektstudie" im Rahmen des Studiengangs "Internationales Technisches Vertriebsmanagement" verbindet Elemente der Ingenieurwissenschaften und der Betriebswirtschaftslehre mit einem realistischen Vertriebsprojekt, hier der Erstellung eines komplexen Angebotes f{\"u}r Satellitenkomponenten. Begleitend zu der Teamarbeit am praktischen Vertriebsprojekt werden Lehrsequenzen theoretischer Natur durchgef{\"u}hrt, die dem nachhaltigen Verst{\"a}ndnis dienen und auf die Schwerpunktthemen vorbereiten. Die hohe Qualit{\"a}t der erstellten Angebotsunterlagen zeigt, dass die angestrebten Lernziele erreicht wurden. Der Praxisschock einer komplexen Angebotserstellung erfolgt f{\"u}r die Studierenden somit bereits im Studium unter Anleitung eines auf diesem Gebiet berufserfahrenen Professors und nicht erst w{\"a}hrend der Probezeit in einer ersten Vertriebsposition.}, subject = {Investitionsg{\"u}termarketing}, language = {de} } @inproceedings{StanikDoehringKrivanekovaetal.2025, author = {Stanik, Eva and D{\"o}hring, Thorsten and Krivanekova, Lucia and Meißner, Martin}, title = {„Zirkus UNI-versum" - ein Astronomie-Event f{\"u}r Schulklassen}, series = {Bayerischer Tag f{\"u}r gute Lehre}, volume = {2025}, booktitle = {Bayerischer Tag f{\"u}r gute Lehre}, publisher = {Universit{\"a}t W{\"u}rzburg}, organization = {Techniche Hochschule Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {Im "Wissenschaftsjahr 2023 - Unser Universum", einer gemeinsamen Initiative des Bundesministeriums f{\"u}r Bildung und Forschung (BMBF) und Wissenschaft im Dialog (WiD), wurden zahlreiche Projekte in ganz Deutschland gef{\"o}rdert. Eines dieser Projekte war der "Zirkus UNI-versum", der an der Technischen Hochschule Aschaffenburg stattfand. Zielgruppe waren Schulklassen von benachbarten Schulen, die eingeladen wurden, bei einem Besuch auf dem Hochschul-Campus spielerisch Wissen {\"u}ber Astronomie und Raumfahrt zu sammeln. Gleichzeitig sollen mit dem Projekt (und anderen „Erlebnis-Bausteinen" unserer Schulprojekte) die Sch{\"u}lerinnen und Sch{\"u}ler f{\"u}r MINT-F{\"a}cher begeistert und zuk{\"u}nftige Studierende f{\"u}r technische Studieng{\"a}nge gewonnen werden.}, subject = {Astronomie}, language = {de} } @article{ObmannMuenchGrafetal.2025, author = {Obmann, Dirk and M{\"u}nch, Philipp and Graf, Bernhard and von Jouanne-Diedrich, Holger and Zausig, York A.}, title = {Comparison of different AI systems for diagnosing sepsis, septic shock, and cardiogenic shock: a retrospective study}, series = {Scientific reports}, volume = {2025}, journal = {Scientific reports}, number = {15}, doi = {doi.org/10.1038/s41598-025-00830-9}, pages = {1 -- 10}, year = {2025}, abstract = {Sepsis, septic shock, and cardiogenic shock are life-threatening conditions associated with high mortality rates, but differentiating them is complex because they share certain symptoms. Using the Medical Information Mart for Intensive Care (MIMIC)-III database and artificial intelligence (AI), we aimed to increase diagnostic precision, focusing on Bayesian network classifiers (BNCs) and comparing them with other AI methods. Data from 5970 adults, including 950 patients with cardiogenic shock, 1946 patients with septic shock, and 3074 patients with sepsis, were extracted for this study. Of the original 51 variables included in the data records, 12 were selected for constructing the predictive model. The data were divided into training and validation sets at an 80:20 ratio, and the performance of the BNCs was evaluated and compared with that of other AI models, such as the one rule classifier (OneR), classification and regression tree (CART), and an artificial neural network (ANN), in terms of accuracy, sensitivity, specificity, precision, and F1-score. The BNCs exhibited an accuracy of 87.6\% to 91.5\%. The CART model demonstrated a notable 91.6\% accuracy when only three decision levels were used, whereas the intricate ANN model reached 90.5\% accuracy. Both the BNCs and the CART model allowed clear interpretation of the predictions. BNCs have the potential to be valuable tools in diagnostic tasks, with an accuracy, sensitivity, and precision comparable, in some cases, to those of ANNs while demonstrating superior interpretability.}, subject = {K{\"u}nstliche Intelligenz}, language = {en} } @article{CibaPetzoldAlvesetal.2025, author = {Ciba, Manuel and Petzold, Marc and Alves, Caroline L. and Rodrigues, Francisco A. and Jimbo, Yasuhiko and Thielemann, Christiane}, title = {Machine learning and complex network analysis of drug effects on neuronal microelectrode biosensor data}, series = {Scientific Reports}, volume = {15}, journal = {Scientific Reports}, number = {1}, publisher = {Springer Science and Business Media LLC}, issn = {2045-2322}, doi = {https://doi.org/10.1038/s41598-025-99479-7}, year = {2025}, abstract = {Biosensors, such as microelectrode arrays that record in vitro neuronal activity, provide powerful platforms for studying neuroactive substances. This study presents a machine learning workflow to analyze drug-induced changes in neuronal biosensor data using complex network measures from graph theory. Microelectrode array recordings of neuronal networks exposed to bicuculline, a GABA \$\$_A\$\$ receptor antagonist known to induce hypersynchrony, demonstrated the workflow's ability to detect and characterize pharmacological effects. The workflow integrates network-based features with synchrony, optimizing preprocessing parameters, including spike train bin sizes, segmentation window sizes, and correlation methods. It achieved high classification accuracy (AUC up to 90\%) and used Shapley Additive Explanations to interpret feature importance rankings. Significant reductions in network complexity and segregation, hallmarks of epileptiform activity induced by bicuculline, were revealed. While bicuculline's effects are well established, this framework is designed to be broadly applicable for detecting both strong and subtle network alterations induced by neuroactive compounds. The results demonstrate the potential of this methodology for advancing biosensor applications in neuropharmacology and drug discovery.}, subject = {Maschinelles Lernen}, language = {en} } @incollection{WisselFreudenmannPerezetal.2025, author = {Wissel, Julian and Freudenmann, Dominic and Perez, Nicolas and D{\"o}hring, Thorsten and Stadtm{\"u}ller, Johannes and Stollenwerk, Manfred}, title = {Various highly effective sputtered layer structures as catalysts for H2O2 decomposition for use in satellite engines}, series = {MaterialsWeek 2025 - Book of Abstracts}, booktitle = {MaterialsWeek 2025 - Book of Abstracts}, publisher = {Deutsche Gesellschaft f{\"u}r Materialkunde e.V. (DGM)}, address = {Sankt Augustin}, isbn = {978-3-88355-446-4}, pages = {53 -- 53}, year = {2025}, abstract = {Catalysts are frequently employed in both research and industrial applications to facilitate or accelerate chemical reactions. One such application is in monopropellant thrusters for space propulsion systems, where hydrogen peroxide (H2O2) is used as a liquid propellant. The decomposition of liquid hydrogen peroxide into water and oxygen gas, which ultimately generates thrust, can be achieved using noble metal catalysts from the platinoid group, such as platinum and iridium. This promotes the use of more environmentally friendly and less toxic propellants, such as H2O2, instead of hydrazine and nitrogen tetroxide (NTO). The optimization of coating structures with these catalytic materials is essential for future space applications, as it aims to extend the lifespan of catalyst materials and results in a better utilization of H2O2 in satellite engines. Therefore, different layer structures were deposited onto Duranit D99 pellets using a controlled magnetron sputtering process. Previous studies have shown that the used sputtering pressure has a strong influence on the structure of the deposited coatings [2][3]. Certain parameter combinations produce catalytic layers with rough textures and a highly porous microstructure, see figure 1 [1]. To improve the thermal and mechanical stability of the sputtered layers, thin adhesive layers of Titanium and Zirconium were applied beneath the catalytic layer. The pellets were then heated in an oven at 640°C for one minute to simulate the thermal effects experienced in a satellite engine during ignition. Following this, the catalytic performance of the pellets was tested in laboratory experiments using 30\% H2O2. Pellets with sputtered platinum as the catalytic coating delivered the best results. These coatings will be further evaluated in an engine test conducted at the German Aerospace Centre (DLR). Hydrogen peroxide is also expected to play a crucial role in future lunar and Martian colonization efforts. In this context, catalytic coatings would be used to decompose H2O2 to supply astronauts with water and oxygen, rather than to generate thrust in satellite engines.}, subject = {Satellitentechnik}, language = {en} } @incollection{RoetzelKokottSchuhmacher2025, author = {R{\"o}tzel, Peter and Kokott, Peter and Schuhmacher, Marcel}, title = {Risikoorientierte Management Control Systems im Beschaffungsmanagement von kleinen und mittelst{\"a}ndischen Unternehmen}, series = {Management von Risiko, Nachhaltigkeit und KI in der Beschaffung}, booktitle = {Management von Risiko, Nachhaltigkeit und KI in der Beschaffung}, pages = {73 -- 95}, year = {2025}, abstract = {Megatrend Klimawandel, Krisen und regulatorische Vorgaben wie das Lieferkettensorgfaltspflichtengesetz (LkSG) haben in den letzten Jahren enorme Herausforderungen f{\"u}r Unternehmen generiert. Unternehmen sehen sich einem steigenden Steuerungsbedarf im Bereich Risikomanagement und Beschaffung gegen{\"u}ber. Ein geeignetes Instrument im strategischen und operativen Controlling ist hierf{\"u}r ein risikoorientiertes Management Control System. Dar{\"u}ber hinaus macht das LkSG Vorgaben f{\"u}r die Ausgestaltung eines Risikomanagements. Insbesondere die Ausgestaltung der Lieferketten und des Risikomanagements mussten neu gedacht und strategisch eingebunden werden. Daneben zeigen sich auch zunehmend Nachhaltigkeitsimplikationen auf das Working Capital Management in Unternehmen. Insbesondere das LkSG wirkt zunehmend auf unternehmerische Entscheidungen und f{\"u}hrt zu Trade-offs zwischen Compliance, Nachhaltigkeit und Profitabilit{\"a}t. Hier k{\"o}nnen Sustainability Control Systems eine wichtige Rolle spielen, die im Vergleich mit klassischen Management Control Systems Nachhaltigkeitsaspekte inkludieren}, subject = {Risikomanagement}, language = {de} } @incollection{KhropostRiethmuellerStaniketal.2025, author = {Khropost, Diana and Riethm{\"u}ller, Franziska and Stanik, Eva and D{\"o}hring, Thorsten and Hertwig, Andreas and Huelague, Deniz}, title = {Polydopamine - a bionic material and its potential applications for batteries}, series = {MaterialsWeek 2025 - Book of Abstracts}, booktitle = {MaterialsWeek 2025 - Book of Abstracts}, publisher = {Deutsche Gesellschaft f{\"u}r Materialkunde e.V. (DGM)}, address = {Sankt Augustin}, isbn = {978-3-88355-446-4}, pages = {67 -- 67}, year = {2025}, abstract = {Polydopamine (PDA) recently came into focus as an innovative material for applications in various technical fields, especially in the energy field it is considered for batteries as well as for supercapacitors. It is a very strong glue that sticks on almost everything, even under water: In nature, PDA is found in the byssal thread cuticles of mussels. The wet-resistant adhesion ability of PDA can be used in the treatment of separator membranes in batteries, but furthermore PDA is also considered as an electrode material for batteries. We have investigated thin layers of poly-dopamine with different methods including ellipsometry, tactile measurements of the layer thickness and in situ absorption measurements during the polymerization process.}, subject = {Iridium}, language = {en} } @techreport{Jost2025, type = {Working Paper}, author = {Jost, Thomas}, title = {Preisstabilit{\"a}t in Deutschland in Zeiten von D-Mark und Euro}, series = {Weidener Diskussionspapiere}, journal = {Weidener Diskussionspapiere}, pages = {14}, year = {2025}, abstract = {Mit der Abschaffung der D-Mark und der Einf{\"u}hrung des Euro waren Hoffnungen verbunden, aber auch Bef{\"u}rchtungen, dass die neue W{\"a}hrung nicht so stabil wie die D-Mark sein k{\"o}nnte. Die D-Mark geh{\"o}rte international {\"u}ber 50 Jahre zu den zwei W{\"a}hrungen mit den niedrigsten Inflationsraten. In diesem Beitrag wird die Entwicklung der Preise und der Kaufkraft in Deutschland in zwei gleich langen Perioden vor und nach der Euro-Einf{\"u}hrung verglichen. Der Euro weist dabei sogar geringere durchschnittliche Inflationsraten, gemessen an den Verbraucherpreisen in Deutschland, als die D-Mark auf. In den Jahren 1999 bis 2020 herrschte weltweit ein g{\"u}nstigeres Inflationsumfeld, was es auch der Europ{\"a}ischen Zentralbank (EZB) leichter machte, ihr Preisstabilit{\"a}tsziel zu verfolgen. Die ersten schweren Herausforderungen ergaben sich f{\"u}r die EZB seit 2021, als die Inflationsrate aufgrund negativer Angebotsschocks und einer beispiellosen Fiskalexpansion auf {\"u}ber 10\% anstieg. Die Deutsche Bundesbank konnte in {\"a}hnlichen Krisen in den 1970er Jahren mit einer konsequenten Stabilit{\"a}tspolitik den Preisauftrieb deutlich st{\"a}rker und nachhaltiger bek{\"a}mpfen als die meisten anderen L{\"a}nder. Ein Erfolg, zu dem auch ihr hoher Grad der Unabh{\"a}ngigkeit von der Politik beitrug. Ob dies der EZB gelingt, bleibt abzuwarten. Anfang 2025 liegt die Inflationsrate im Euroraum und in Deutschland trotz einer tiefgreifenden Konjunkturschw{\"a}che mit 2,5\% noch immer {\"u}ber dem Inflationsziel von 2\%.}, subject = {Europ{\"a}ische Zentralbank}, language = {de} } @article{SallumAlvesdeOToutainetal.2025, author = {Sallum, Loriz Francisco and Alves, Caroline L. and de O Toutain, Thaise Graziele L and Porto, Joel Augusto Moura and Thielemann, Christiane and Rodrigues, Francisco A.}, title = {Revealing patterns in major depressive disorder with machine learning and networks}, series = {Chaos, Solitons \& Fractals}, volume = {194}, journal = {Chaos, Solitons \& Fractals}, publisher = {Elsevier BV}, issn = {0960-0779}, doi = {https://doi.org/10.1016/j.chaos.2025.116163}, year = {2025}, abstract = {Major depressive disorder (MDD) is a multifaceted condition that affects millions of people worldwide and is a leading cause of disability. There is an urgent need for an automated and objective method to detect MDD due to the limitations of traditional diagnostic approaches. In this paper, we propose a methodology based on machine and deep learning to classify patients with MDD and identify altered functional connectivity patterns from EEG data. We compare several connectivity metrics and machine learning algorithms. Complex network measures are used to identify structural brain abnormalities in MDD. Using Spearman correlation for network construction and the SVM classifier, we verify that it is possible to identify MDD patients with high accuracy, exceeding literature results. The SHAP (SHAPley Additive Explanations) summary plot highlights the importance of C4-F8 connections and also reveals dysfunction in certain brain areas and hyperconnectivity in others. Despite the lower performance of the complex network measures for the classification problem, assortativity was found to be a promising biomarker. Our findings suggest that understanding and diagnosing MDD may be aided by the use of machine learning methods and complex networks.}, subject = {Depression}, language = {en} } @incollection{StanikStollenwerkHuebneretal.2025, author = {Stanik, Eva and Stollenwerk, Manfred and H{\"u}bner, Sophie and Stadtm{\"u}ller, Johannes and D{\"o}hring, Thorsten}, title = {Experimental studies on iridium catalysts for water PEM electrolysis}, series = {MaterialsWeek 2025 - Book of Abstracts}, booktitle = {MaterialsWeek 2025 - Book of Abstracts}, publisher = {Deutsche Gesellschaft f{\"u}r Materialkunde e.V. (DGM)}, address = {Sankt Augustin}, isbn = {978-3-88355-446-4}, pages = {62 -- 62}, year = {2025}, abstract = {The enhanced use of sustainable energy sources entails strong fluctuations in the availability of electric power. As we need new approaches for energy distribution and energy storage systems, hydrogen is often discussed as a promising energy carrier. PEM electrolysis can be used to transform electrical energy from renewable sources into hydrogen. One challenge in this context is the need for catalysts, as these contribute significantly to the performance of the electrolysis cell. The commonly used platinum group metal (PGM) catalysts like Iridium are quite scarce and therefore expensive. A possible approach to reduce the Ir content is the application of magnetron sputtering for catalyst generation. By selecting the right process parameters, the desired layer properties can be set very precisely during sputtering. This ensures a large surface area with reduced material usage. The introduction of carbon can increase the surface area of the catalyst further and enhance its effectiveness. First results of investigations on the catalytic effect of sputtered Ir catalyst layers will be presented.}, subject = {Iridium}, language = {en} } @inproceedings{ManzAbkeHagel2025, author = {Manz, Julian and Abke, J{\"o}rg and Hagel, Georg}, title = {Automated Tracking of User Interactions in Web-Based Adaptive Learning for Software Engineering}, series = {ECSEE '25: Proceedings of the 6th European Conference on Software Engineering Education}, booktitle = {ECSEE '25: Proceedings of the 6th European Conference on Software Engineering Education}, editor = {Mottok, J{\"u}rgen and Hagel, Georg}, publisher = {Association for Computing Machinery}, address = {New York, NY, USA}, isbn = {979-8-4007-1282-1}, doi = {10.1145/3723010.3723020}, pages = {180 -- 184}, year = {2025}, abstract = {This paper explores the automation of generating and dispatching Experience API (xAPI) statements for comprehensive tracking of user interactions in e-learning environments. It introduces the react-xapi-wrapper library, an extension of the xAPI JavaScript library designed for use in web applications. Key aspects discussed include the library's features, its integration into a web-based adaptive learning system (ALS) for software engineering, and the custom verbs used. The goal is to reduce implementation effort for tutors and developers while taking advantage of xAPI's interoperability, scalability, and ability to track student learning activities and behaviors, laying the foundation for more responsive and personalized learning experiences.}, subject = {Computerunterst{\"u}tztes Lernen}, language = {en} } @inproceedings{MichaelValenciaUsmeAbke2025, author = {Michael, M{\"u}nch and Valencia Usme, Yeimy Paola and Abke, J{\"o}rg}, title = {Prototypical Implementation of a Domain Model for an Adaptive Learning System}, series = {Proceedings of the 6th European Conference on Software Engineering Education}, volume = {2025}, booktitle = {Proceedings of the 6th European Conference on Software Engineering Education}, number = {ECSEE '25: Proceedings of the 6th European Conference on Software Engineering Education}, editor = {Mottok, J{\"u}rgen and Hagel, Georg}, doi = {https://dl.acm.org/doi/pdf/10.1145/3723010.3723030}, pages = {190 -- 194}, year = {2025}, abstract = {The goal of this paper is to present the concept and implementation of a Domain Model for an adaptive learning system (ALS) as a defined framework. The ALS is developed in a research setting. In this study, a proposition for a Domain Model based on Experience API (xAPI) protocol within a Learning Record Store (LRS) is outlined. The target is to collect and analyze student data using xAPI statements, such as average working time and learning elements (LEs) interacted with, in order to gain insights into student behavior and learning processes. The aim of this study is to develop and provide a conceptual model using xAPI and LRS in an ALS setting, an architecture that improves the flexibility of developing adaptive learning systems, enabling the creation of personalized learning experiences for a wide range of users and use cases. The combination of xAPI and LRS allows the definition of a precise Domain Model and provides contextualized and structured data. Moreover, xAPI enables the transformation of the inherent complexity of the Domain Model into something understandable and actionable, facilitating deeper analysis of learning experiences. This paper demonstrates how the proposed Domain Model can effectively represent student activities, interactions, and learning outcomes within a defined framework. The expectation is that diverse types of learners, as well as developers and researchers in educational technologies, will benefit from the use of the Domain Model in a learning environment. Here the learner's preferences are diagnosed, and then user interfaces are customized in an adaptive manner to accommodate the preferences. The main task of the Domain Model is to provide data for the adaptive components of the adaptive learning system.}, subject = {Computerunterst{\"u}tztes Lernen}, language = {en} } @inproceedings{DoehringKrivanekovaPregleretal.2025, author = {D{\"o}hring, Thorsten and Krivanekova, Lucia and Pregler, Jan and Hildenbrand, Georg}, title = {Radiation measurements in the stratosphere by the balloon experiment ASTRABAX}, series = {EUV and X-ray Optics: Synergy between Laboratory and Space IX}, volume = {2025}, booktitle = {EUV and X-ray Optics: Synergy between Laboratory and Space IX}, number = {13531}, editor = {Hudec, Ren{\´e} and Pina, Ladislav}, publisher = {SPIE}, doi = {10.1117/12.3056175}, pages = {1353109-1 -- 1353109-11}, year = {2025}, abstract = {Stratospheric balloons are a platform of choice for meteorology, climate and atmospheric research, offering some advantages over sounding rockets and satellites. The Aschaffenburg Stratospheric Balloon Experiment (ASTRABAX) carries out experiments on material treatments and life sciences under the extreme radiation exposures at high altitude. The pioneer ASTRABAX flight took place mid of October 2024 in Germany. Measurements examined the UV spectral region by a miniature spectrometer and captured secondary cosmic rays employing a Geiger counter. Additional experiments assessed irradiation effects on polydopamine X-ray mirror coatings. The platform also carried samples of biological cells to evaluate effects of exposure to low-dose irradiation of high-energy particles, gamma rays and UV radiation simultaneously. Biological experiments under such realistic conditions are relevant for genetic research on Earth, for human space flights as well as for the understanding of astrobiological processes.}, subject = {Stratosph{\"a}ren-Ballon}, language = {en} } @inproceedings{StanikPreglerDoehringetal.2025, author = {Stanik, Eva and Pregler, Jan and D{\"o}hring, Thorsten and K{\"a}tker, Anna and Busch, Uwe and Friedrich, Peter}, title = {A visitor experiment on astronomical x-ray optics for the "Deutsches R{\"o}ntgenmuseum"}, series = {EUV and X-ray Optics: Synergy between Laboratory and Space IX}, volume = {2025}, booktitle = {EUV and X-ray Optics: Synergy between Laboratory and Space IX}, number = {13531}, editor = {Hudec, Ren{\´e} and Pina, Ladislav}, publisher = {SPIE}, doi = {10.1117/12.3056291}, pages = {135310M-1 -- 135310M-7}, year = {2025}, abstract = {The "Deutsches R{\"o}ntgen-Museum" in Remscheid (Germany) is the unique institution worldwide that researches and documents the life and work of the first Nobel Prize winner in physics, Wilhelm Conrad R{\"o}ntgen, and the effects of his discovery of X-rays. As an integral part of the museum, the R{\"o}Lab laboratory offers visitors the opportunity to gain practical experience in X-rays, optics and technology through own experiments. As part of a joint development project, students from Aschaffenburg University of Applied Sciences are currently designing a visitor experiment on astronomical X-ray optics for the museum´s R{\"o}ntgen laboratory. An optical set-up with visible light illustrates the focusing principle of X-ray telescopes, e. g. for wide-angle optics based on the lobster-eye principle. Display boards explain the optics of various types of telescopes with accompanying text and corresponding illustrations. Modern X-ray observatories such as CHANDRA, XMM-Newton and eROSITA are presented clearly. Once implemented, the new visitor experiment inside the "Deutsches R{\"o}ntgen-Museum" aims to inspire young researchers with enthusiasm for the fascinating world of X-ray optics and X-ray astronomy.}, subject = {Deutsches R{\"o}ntgen-Museum}, language = {en} } @inproceedings{HudecStieglitzDoehringetal.2025, author = {Hudec, Rene and Stieglitz, Veronika and D{\"o}hring, Thorsten and Friedrich, Peter and Burwitz, Vadim}, title = {Novel X-ray optics developed within the AHEAD2020 project}, publisher = {DGaO}, organization = {TH Aschaffenburg}, pages = {1 -- 1}, year = {2025}, abstract = {We present a summary of our contribution to the EU Horizon 2020 project AHEAD2020, with emphasis on the X-ray optics work package. The Czech Technical University - together with other collaborating institutes - studied innovative Lobster Eye (LE) and Kirkpatrick-Baez (KB) X-ray modules, based on the Multi Foil Optics technology (MFO). In addition, two major events were organized, namely a students workshop in December 2023 and a summer school in May 2024. The KB optics represents a promising and cost effective alternative to the currently used Wolter I telescopes. The LE X-ray optics, based on the Schmidt design, has a wide field of view (FOV) with a short focal length, making it suitable for CubeSat application. Thereby the 2D LE optics consist of two orthogonal sub-modules of flat smooth reflecting foils, each sub-modules focuses in one direction. The advantage of such optics is that it preserves the angular resolution throughout the FOV even for off-axis points, as demonstrated by simulations and measurements. There was a collaboration with Aschaffenburg University in design, development, and testing of the double LE module HORUS, comparing different reflecting coatings.}, subject = {R{\"o}ntgenoptik}, language = {en} } @inproceedings{NeumaierProbstWoelfeletal.2025, author = {Neumaier, Marcel and Probst, Anne-Catherine and W{\"o}lfel, Maximilian and Bochtler, Ulrich}, title = {Performance Analysis in a Digital TETRA-Simulcast System}, series = {2025 16th German Microwave Conference (GeMiC)}, booktitle = {2025 16th German Microwave Conference (GeMiC)}, year = {2025}, abstract = {In radio communication of mission-critical services, resilient solutions are strongly required to account for public safety. Additionally to the cellular network based on the professional mobile radio European standard TETRA, a digital TETRA-simulcast system is proposed as a redundant network to ensure area coverage in case of base station failure caused e.g. by disasters. This paper presents a preliminary study about network planning of a frequency-efficient digital TETRA-simulcast system to be physically deployed in a hilly region of Germany. Coverage as well as ray tracing analysis and channel modeling were performed by simulations and prove to be helpful tools for the systematic optimization of system performances, especially with regard to the control of intersymbol interference in overlapping zones.}, subject = {TETRA, Telekommunikation}, language = {en} } @article{Diwersy2025, author = {Diwersy, Bettina}, title = {Transnationale Fallverl{\"a}ufe in den Hilfen zur Erziehung professionell begleiten}, series = {DZI - Fachzeitschrift Soziale Arbeit}, volume = {74}, journal = {DZI - Fachzeitschrift Soziale Arbeit}, number = {4}, pages = {169 -- 175}, year = {2025}, subject = {Transnationalisierung}, language = {de} } @article{SommerHornungEsenetal.2025, author = {Sommer, David and Hornung, Simon and Esen, Cemal and Hellmann, Ralf}, title = {Design Guide for Hybrid-Additive Manufacturing of Inconel 718 Combining PBF-LB/M and In Situ High-Speed Milling}, series = {Journal of Manufacturing and Materials Processing}, volume = {9}, journal = {Journal of Manufacturing and Materials Processing}, number = {3}, publisher = {MDPI AG}, issn = {2504-4494}, doi = {http://dx.doi.org/10.3390/jmmp9030088}, year = {2025}, abstract = {As the correlation between design rules and process limitations is of the upmost importance for the full exploitation of any manufacturing technology, we report a design guide for hybrid-additive manufacturing of Inconel 718. Basic limitations need to be evaluated for this particular hybrid approach that combines laser powder bed fusion (PBF-LB/M) and in situ high-speed milling. Fundamental geometric limitations are examined with regard to the minimum feasible wall thickness, cylinders, overhanging structures, and chamfers. Furthermore, geometrical restrictions due to the integrated three-axis milling process with respect to inclinations, inner angles, notches, and boreholes are investigated. From these findings, we derive design guidelines for a reliable build process using this hybrid manufacturing. Additionally, a design guideline for the hybrid-additive manufacturing approach is presented, depicting a step-to-step guide for the adjustment of constructions. To demonstrate this, a powder nozzle for a direct energy deposition (DED-LB/M) process is redesigned following the previously defined guidelines. This redesign encompasses analysis of the existing component and identification of problematic areas such as flat angles, leading to a new construction that is suitable for a hybrid-additive manufacturing approach.}, subject = {Hochgeschwindigkeitsfr{\"a}sen}, language = {en} } @incollection{HetzelReichertDolletal.2025, author = {Hetzel, Manuel and Reichert, Hannes and Doll, Konrad and Sick, Bernhard}, title = {Reliable Probabilistic Human Trajectory Prediction for Autonomous Applications}, series = {Computer Vision - ECCV 2024 Workshops, Milan, Italy, September 29-October 4, 2024, Proceedings, Part XVII}, booktitle = {Computer Vision - ECCV 2024 Workshops, Milan, Italy, September 29-October 4, 2024, Proceedings, Part XVII}, publisher = {Springer Nature}, address = {Cham}, isbn = {9783031915840}, issn = {0302-9743}, doi = {https://doi.org/10.1007/978-3-031-91585-7_9}, pages = {135 -- 152}, year = {2025}, subject = {Autonomes System}, language = {en} } @article{SommerTruetschEsenetal.2025, author = {Sommer, David and Truetsch, Ben and Esen, Cemal and Hellmann, Ralf}, title = {Fractographic Analysis and Fatigue Behavior of Additively Manufactured Ni-Superalloy Components with Post Processing Heat Treatment and Hot Isostatic Pressing}, series = {Advanced Engineering Materials}, volume = {27}, journal = {Advanced Engineering Materials}, number = {12}, publisher = {Wiley}, issn = {1438-1656}, doi = {http://dx.doi.org/10.1002/adem.202500078}, year = {2025}, abstract = {A report is made on a study of mechanical properties and fractographic characteristics of laser powder bed fusion (PBF-LB/M)-built Inconel 718, performing heat treatments and hot-isostatic pressing. For this, tensile components are heat-treated by different processes, as namely stress relief (SR), SR and double aging (SR + DA), and hot-isostatic pressing are conducted. For the mechanical testing, the ultimate tensile strength (UTS) as well as the fatigue behavior are evaluated, examining differences in maximum load behavior, elongation, and the different regimes of fatigue. As changes in material structure can be observed, the sole SR leads to a diminished UTS, while the combination of SR + DA develops an UTS of Rm = 1277 MPa. Within the fatigue behavior, the HIP shows a very balanced material structure with an increased high cycle and very high cycle regime, as the texture gets homogenized during the heat treatment. The metallographic analysis can quantify the material changes, as the density and the hardness are improved by virtue of the heat treatments. Furthermore, the fractographic analysis shows the differences in fracture behavior, arising due to the microstructural changes, as crack initiation points, crack propagation, and forced fractures can be categorized by scanning electron microscopy.}, subject = {Rapid Prototyping, Fertigung}, language = {en} } @inproceedings{WeegerStiehlvonKistowskietal.2025, author = {Weeger, Nicolas and Stiehl, Annika and von Kistowski, J{\´o}akim and Geißels{\"o}der, Stefan and Uhl, Christian}, title = {Towards Practicable Machine Learning Development Using AI Engineering Blueprints}, series = {2025 IEEE 22nd International Conference on Software Architecture Companion (ICSA-C)}, booktitle = {2025 IEEE 22nd International Conference on Software Architecture Companion (ICSA-C)}, publisher = {IEEE}, doi = {10.1109/ICSA-C65153.2025.00078}, pages = {525 -- 528}, year = {2025}, abstract = {The implementation of artificial intelligence (AI) in business applications holds considerable promise for significant improvements. The development of AI systems is becoming increasingly complex, thereby underscoring the growing importance of AI engineering and MLOps techniques. Small and medium-sized enterprises (SMEs) face considerable challenges when implementing AI in their products or processes. These enterprises often lack the necessary resources and expertise to develop, deploy, and operate AI systems that are tailored to address their specific problems. Given the lack of studies on the application of AI engineering practices, particularly in the context of SMEs, this paper proposes a research plan designed to develop blueprints for the creation of proprietary machine learning (ML) models using AI engineering and MLOps practices. These blueprints enable SMEs to develop, deploy, and operate AI systems by providing reference architectures and suitable automation approaches for different types of ML. The efficacy of the blueprints is assessed through their application to a series of field projects. This process gives rise to further requirements and additional development loops for the purpose of generalization. The benefits of using the blueprints for organizations are demonstrated by observing the process of developing ML models and by conducting interviews with the developers.}, subject = {Maschinelles Lernen}, language = {en} } @book{Balleis2025, author = {Balleis, Kristina}, title = {Anleitung zur L{\"o}sung von Zivilrechtsf{\"a}llen}, edition = {11., {\"u}berarbeitete und verbesserte Auflage}, publisher = {Vahlen}, address = {M{\"u}nchen}, isbn = {978-3-8006-7535-7}, pages = {241}, year = {2025}, subject = {Deutschland}, language = {de} }