@book{Schmid, author = {Schmid, Stefan}, title = {Gestaltung eines smarten Produktionsleitsystems im Kontext von Industrie 4.0}, editor = {Winkler, Herwig}, edition = {1. Auflage}, publisher = {Logos Verlag}, address = {Berlin}, isbn = {978-3-8325-6045-4}, issn = {2191-7612}, pages = {395}, abstract = {Seit der ersten industriellen Revolution hat sich die Produktion grundlegend ver{\"a}ndert. Industrie 4.0 markiert die vierte industrielle Revolution und ist mit tiefgreifenden Ver{\"a}nderungen in Planung, Steuerung und Organisation von Produktionssystemen verbunden. Vernetzte Maschinen, cyber-physische Systeme, Digitale Zwillinge, simulationsbasierte Entscheidungsans{\"a}tze sowie datengetriebene Analysen und Verfahren der K{\"u}nstlichen Intelligenz er{\"o}ffnen neue Gestaltungsspielr{\"a}ume. Zugleich nehmen Komplexit{\"a}t, Dynamik und Unsicherheit in Produktionssystemen zu, sodass klassische Ans{\"a}tze zunehmend an ihre Grenzen stoßen. Dieses Buch stellt eine umfassende Untersuchung zur Gestaltung eines smarten Produktionsleitsystems im Kontext von Industrie 4.0 dar. Im Zentrum steht die integrative Ausrichtung auf das Zusammenspiel von Mensch, Organisation und Technologie. Digitale Werkzeuge und K{\"u}nstliche Intelligenz werden gezielt eingesetzt, um Transparenz zu erh{\"o}hen, Entscheidungsfindung zu unterst{\"u}tzen und operative Abl{\"a}ufe zu steuern. Die systematische Nutzung von Daten tr{\"a}gt zur Entlastung menschlicher Entscheidungstr{\"a}ger bei und schafft die Grundlage f{\"u}r eine schrittweise Automatisierung und Optimierung von Steuerungsaufgaben. Die ganzheitliche Ber{\"u}cksichtigung technologischer, organisatorischer und menschlicher Dimensionen positioniert die Arbeit als integrativen Gestaltungsansatz f{\"u}r intelligente Produktionssteuerung im Zeitalter der vierten industriellen Revolution.}, language = {de} } @incollection{FitzTeutenbergVeldyaevaetal., author = {Fitz, Lukas R. G. and Teutenberg, Lukas D. and Veldyaeva, Ekaterina and Scheeg, Jochen}, title = {Augmented reality solution requirements for human-building interactions : lessons learned from an applied science project}, series = {HCI International 2025 - Late Breaking Papers : 27th International Conference on Human-Computer Interaction, HCII 2025 Gothenburg, Sweden, June 22-27, 2025 proceedings, Part III}, booktitle = {HCI International 2025 - Late Breaking Papers : 27th International Conference on Human-Computer Interaction, HCII 2025 Gothenburg, Sweden, June 22-27, 2025 proceedings, Part III}, editor = {Stephanidis, Constantine and Antona, Margherita and Ntoa, Stavroula and Margetis, George and Salvendy, Gavriel}, publisher = {Springer Nature Switzerland}, address = {Cham}, isbn = {978-3-032-12775-4}, issn = {1865-0929}, doi = {10.1007/978-3-032-12773-0_21}, pages = {217 -- 225}, abstract = {One popular application domain for Augmented Reality (AR) technology is facilitating human-building interactions (HBI). Such applications help users to retrieve and transact information through localized interaction points displayed on their (mobile) devices. Growing adoption of AR technology underlines the importance of incorporating suitable AR components for HBI, which is important for effective implementation and testing of HBI-AR use cases, increasing user satisfaction, and long-term viability. In this context, our short paper presents key experiences and lessons learned from an applied science project targeting the development and evaluation of an HBI-AR university campus app. Drawing on an ex-post inquiry of project collaborator experiences, we prescriptively highlight relevant AR solution requirements for this specific design context. Our findings amplify the importance of (1) balancing trade-offs between different spatial embedding computation methods, (2) modularity, customizability, and testability for efficient software development, and (3) taking building complexity and prototype maturity requirements into account when taking AR solution make-or-buy decisions. Our shared insights may inform future best practices and design principles for convergent HBI and AR projects in research and practice.}, language = {en} } @misc{WalterHerzbergDuerrschmidtetal., author = {Walter, Anja and Herzberg, Heidrun and D{\"u}rrschmidt, Andreas and Otte, Ann-Sophie}, title = {Die Arbeit mit Situationen im Pflegeunterricht : Ergebnisse aus einem Forschungsprojekt}, series = {PADUA : die Fachzeitschrift f{\"u}r Pflegep{\"a}dagogik, Patientenedukation und -bildung}, volume = {21}, journal = {PADUA : die Fachzeitschrift f{\"u}r Pflegep{\"a}dagogik, Patientenedukation und -bildung}, number = {2}, publisher = {Hogrefe Publishing Group}, address = {G{\"o}ttingen ; Bern}, issn = {1861-6186}, doi = {10.1024/1861-6186/a000920}, pages = {67 -- 72}, abstract = {Zusammenfassung: Das Situationsprinzip gilt als Konstruktionsprinzip f{\"u}r die Pflegeausbildung. In einem Forschungsprojekt haben wir Unterrichtspraktiken zur Arbeit mit Situationen identifiziert, die bestimmte Wirkungen auf das Unterrichtsgeschehen entfalten und mit dem professionellen Selbstverst{\"a}ndnis von Pflegelehrenden korrespondieren. Drei Unterrichtsbeispiele werden vorgestellt und diskutiert.}, language = {de} } @misc{HayatRuesterWinkler, author = {Hayat, Mubashir and R{\"u}ster, Moritz and Winkler, Herwig}, title = {AI-based maintenance order planning and control of trains : status quo and conceptual considerations}, series = {Procedia computer science}, volume = {277}, journal = {Procedia computer science}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {1877-0509}, doi = {10.1016/j.procs.2026.02.286}, pages = {2495 -- 2504}, abstract = {Maintenance of trains has a major impact on their availability, safety and cost-effectiveness. To date, planning-intensive processes in train maintenance workshops have been carried out with traditional static planning systems. While these systems have provided a foundation for organizing maintenance work, they are unable to generate optimized maintenance programs. As a result, unplanned additional tasks frequently arise during the actual execution of the maintenance operations, thereby disrupting workflows in maintenance workshops and reducing both economic and operational efficiency. It has been demonstrated that such disruptions often lead to increased maintenance costs, longer lead times, and reduced plant efficiency. Therefore, there is a growing need to shift from static to more dynamic, data-driven approaches for maintenance planning and control in the railway sector. Artificial Intelligence (AI) offers significant potential in this regard, as it facilitates the development of predictive capabilities, dynamic scheduling, and intelligent resource allocation. To this aim, this work presents a conceptual framework designed to enhance maintenance order planning and control in train maintenance workshops. The proposed framework serves as a foundational model for utilizing the AI technologies to reduce inefficiencies, improve scheduling, and ultimately support timely and cost-effective maintenance planning and control strategies for trains. The framework remains conceptual at this stage, which is the main limitation of the work; however, as future work, its practical effectiveness will be explored through implementation in trains maintenance workshop and empirical validation.}, language = {en} } @misc{SchuetzDadaczynskiRathmannetal., author = {Sch{\"u}tz, Raphael and Dadaczynski, Kevin and Rathmann, Katharina and Bilz, Ludwig and HBSC Study Group Germany,}, title = {How, when, and with whom : a study on the moderating aspects of the association between social media use and loneliness among school-aged children}, series = {Journal of technology in behavioral science}, journal = {Journal of technology in behavioral science}, publisher = {Springer Science and Business Media LLC}, address = {Cham}, issn = {2366-5963}, doi = {10.1007/s41347-026-00605-7}, pages = {16}, abstract = {The relationship between social media use and loneliness among adolescents is a growing area of research, with mixed findings on whether social media use is associated with increased (displacement hypothesis) or decreased (stimulation hypothesis) loneliness. So far, the relationship between social media use and loneliness by online interaction partner or age has hardly been investigated. Therefore, this study explores the associations between social media communication with different persons and loneliness. Furthermore, the link between problematic social media use and loneliness, as well as age differences, were analyzed. Data from the representative 2022 German Health Behavior in School-aged Children (HBSC) survey, including 6,475 students aged 11, 13, and 15 years (girls: 50,6\%, Mage = 13,4, SD = 1,7), were used. Loneliness was measured via the University of California-Los Angeles Scale (UCLA). Chi-square tests and regression analyses were conducted. In total, 11.8\% of the children were classified as lonely, with girls and gender-diverse individuals showing higher levels of loneliness than boys. High levels of contact with close friends via social media were linked to lower levels of loneliness, whereas interaction with internet friends was associated with greater levels of loneliness. A total of 11.1\% of students reported problematic social media use, which was associated with a higher likelihood of feeling lonely. The relationship was not moderated by age. These findings support both the displacement and stimulation hypotheses, suggesting that the role of social media depends on how and with whom it is used. Interacting with close friends on social media is linked with lower levels of loneliness, whereas problematic use and online-only interactions are associated with higher levels of loneliness, regardless of age. Thus, interventions should focus on promoting healthy social media habits and encouraging meaningful connections with close friends.}, language = {en} } @misc{MitsevaLewandowskyPanchenko, author = {Mitseva, Asya and Lewandowsky, Marco and Panchenko, Andriy}, title = {Whitelisting als Allheilmittel : {\"u}ber die Grenzen der Anomalieerkennung in industriellen Steuerungssystemen}, series = {Sicherheit 2026 : Sicherheit, Schutz und Zuverl{\"a}ssigkeit, 17.-19. M{\"a}rz 2026, Hamburg : proceedings}, journal = {Sicherheit 2026 : Sicherheit, Schutz und Zuverl{\"a}ssigkeit, 17.-19. M{\"a}rz 2026, Hamburg : proceedings}, editor = {Skwarek, Volker and W{\"o}hnert, Kai Hendrik and Kaven, Sascha and Wendzel, Steffen}, publisher = {Gesellschaft f{\"u}r Informatik}, address = {Bonn}, issn = {2944-7682}, doi = {10.18420/sicherheit2026_09}, pages = {103 -- 114}, abstract = {Die zunehmende Digitalisierung und Vernetzung industrieller Steuerungssysteme mit dem Internet macht diese anf{\"a}llig f{\"u}r Cyberangriffe. Ein zentraler Forschungsbereich konzentriert sich daher auf die Entwicklung reaktiver Sicherheitsmechanismen in Form industrieller Intrusion-Detection-Systeme (IIDS), die darauf ausgelegt sind, Anomalien im normalen Systembetrieb zu erkennen. Eine entscheidende Voraussetzung hierf{\"u}r ist die Identifizierung typischer Verkehrsmuster, die ausschließlich f{\"u}r das normale Verhalten industrieller Steuerungssysteme charakteristisch sind. Im Gegensatz zu fr{\"u}heren Arbeiten, die sich auf komplexe und protokollabh{\"a}ngige Modelle zur Charakterisierung des Netzwerkverkehrs industrieller Steuerungssysteme konzentrierten, schlagen wir in dieser Arbeit einfache, leicht umsetzbare und effektive Regeln vor, um zu ermitteln, ob der Netzwerkverkehr in Industrieanlagen - im Gegensatz zu herk{\"o}mmlichen IT-Netzwerken - {\"u}ber einen l{\"a}ngeren Zeitraum stabil bleibt. Anhand der Analyse mehrerer Datens{\"a}tze aus nachgebildeten und realen industriellen Steuerungssystemen mit unterschiedlichen industriellen Netzwerkprotokollen zeigen wir, dass aufbauend auf diesen Regeln bereits nach kurzer Beobachtungszeit hinreichend pr{\"a}gnante Muster extrahiert werden k{\"o}nnen, mit deren Hilfe es m{\"o}glich ist, g{\"a}ngige Verkehrsver{\"a}nderungen durch Netzverkehrsangriffe zu erkennen. Dieser Ansatz steht im Gegensatz zu herk{\"o}mmlichen Machine-Learning-IIDS, die h{\"a}ufig einen betr{\"a}chtlichen zeitlichen Aufwand f{\"u}r den Trainingsprozess erfordern. Somit stellen wir auch die Frage auf, inwieweit komplexe IIDS f{\"u}r den praktischen Betrieb tats{\"a}chlich unabdingbar sind.}, language = {de} } @incollection{SchmidWeberMay, author = {Schmid, Benjamin and Weber, Christiane and May, Roland}, title = {Modell Alsterschwimmhalle Hamburg}, series = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, booktitle = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, editor = {Lorenz, Werner and May, Roland}, publisher = {Birkh{\"a}user}, address = {Basel}, isbn = {978-3-0356-2860-9}, doi = {10.1515/9783035628616-009}, pages = {102 -- 107}, abstract = {Das heute noch erhaltene Messmodell zur 1973 vollendeten Alsterschwimmhalle markiert das Ende einer Epoche, in der anspruchsvolle, an die „Limits" des Berechenbaren gehende Konstruktionen erg{\"a}nzend zur Statik durch modellstatische Untersuchungen erkundet und legitimiert wurden. Erst der Siegeszug der digitalen Nachweismethoden machte sie in den 1970er Jahren obsolet.}, language = {de} } @incollection{May, author = {May, Roland}, title = {Mast 17 in K{\"o}nigs Wusterhausen}, series = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, booktitle = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, editor = {Lorenz, Werner and May, Roland}, publisher = {Birkh{\"a}user}, address = {Basel}, isbn = {978-3-0356-2860-9}, doi = {10.1515/9783035628616-006}, pages = {82 -- 87}, abstract = {Zusammen mit f{\"u}nf weiteren Masten und einem freistehenden Turm im Zentrum trug der Ende 1924 errichtete „Mast 17" die Antennen des neuen Langwellensenders K{\"o}nigs Wusterhausen. Heute ist der knapp 215 m hohe "Skyscraper" ein einzigartiges Zeugnis nicht nur aus den Pionierjahren des Rundfunks.}, language = {de} } @incollection{GrillichMay, author = {Grillich, Philipp and May, Roland}, title = {Beton-Demonstrationsobjekte in Offenbach}, series = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, booktitle = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, editor = {Lorenz, Werner and May, Roland}, publisher = {Birkh{\"a}user}, address = {Basel}, isbn = {978-3-0356-2860-9}, doi = {10.1515/9783035628616-005}, pages = {76 -- 81}, abstract = {Konstruktionsgeschichtlich sind es Kleinode, errichtet 1879 f{\"u}r die Hessische Landes- Gewerbeausstellung: Noch heute erz{\"a}hlen die Ausstellungsobjekte der Zementfabrik W. Feege \& Gotthard von den seinerzeit schier grenzenlosen Erwartungen an die technischen wie gesch{\"a}ftlichen Potenziale des neuen Bauens mit (noch unbewehrtem) Beton.}, language = {de} } @incollection{LorenzMay, author = {Lorenz, Werner and May, Roland}, title = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, series = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, booktitle = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, editor = {Lorenz, Werner and May, Roland}, publisher = {Birkh{\"a}user}, address = {Basel}, isbn = {978-3-0356-2860-9}, doi = {10.1515/9783035628616-001}, pages = {6 -- 27}, language = {de} } @misc{OPUS4-37964, title = {Bauen am Limit : Traditionen und Transformationen eines hochmodernen Leitbilds}, editor = {Lorenz, Werner and May, Roland}, publisher = {Birkh{\"a}user}, address = {Basel}, isbn = {978-3-0356-2860-9}, doi = {10.1515/9783035628616}, pages = {300}, abstract = {Angestoßen durch die Entwicklung neuer Baustoffe wie Stahl und Stahlbeton und erm{\"o}glicht durch immer zuverl{\"a}ssigere ingenieurwissenschaftliche Modelle strebten Konstrukteure in der Hochmoderne (etwa 1880-1970) wie nie zuvor nach immer gr{\"o}ßeren Weiten und H{\"o}hen bei gleichzeitiger Minimierung des Materialeinsatzes. Dem Erkunden struktureller Grenzen am Limit des M{\"o}glichen stand die zunehmende Eingrenzung in kodifizierte Limits des Zul{\"a}ssigen durch wachsende Regelungsapparate gegen{\"u}ber. Der Band versammelt unterschiedliche Beitr{\"a}ge zu den Praktiken, Denkmustern und Haltungen von Konstrukteuren im Spannungsfeld dieser gegens{\"a}tzlichen Facetten hochmodernen Konstruierens. Den neuartigen Zugang zur j{\"u}ngeren Baugeschichte erg{\"a}nzen Erkundungen zu den Kontinuit{\"a}ten und Br{\"u}chen hochmodernen Effizienzdenkens im heutigen Bauwesen.}, language = {de} } @misc{MajauraSutterluettiBoehm, author = {Majaura, Marie and Sutterl{\"u}tti, Rahel and B{\"o}hm, Christian}, title = {Tree strips reduce atmospheric evaporative demand and influence crop water use efficiency in crop alleys of a temperate alley cropping system}, series = {Agricultural water management}, volume = {328}, journal = {Agricultural water management}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0378-3774}, doi = {10.1016/j.agwat.2026.110297}, pages = {1 -- 14}, abstract = {Agroforestry is widely recognized as a promising strategy for climate change adaptation and mitigation, partly because trees modify the microclimate and can thereby stabilize crop yields under increasing climatic variability and fluctuating water availability. However, how these microclimatic modifications influence precipitation partitioning, atmospheric evaporative demand (AED) and crop water-use efficiency (WUE) has received comparatively little research attention, particularly in temperate alley cropping systems (ACS). In this study, we analysed spatial patterns of precipitation (measured at gauge height), reference evapotranspiration (ET0) and WUE at varying distances from tree strips in a temperate ACS and an open field (OF) reference across three crops and two growing seasons. Higher precipitation amounts were frequently recorded in the ACS, particularly near tree strips, while values within the crop alley were often lowest at the centre position. ET0 was consistently lower in the ACS than in the OF and showed distinct spatial variability within the alley. WUE patterns depended strongly on the calculation approach: evapotranspiration-based WUE was generally higher at mid-alley positions than in the OF, whereas precipitation-based WUE showed comparable values between systems. Notably, these differences in evapotranspiration-based WUE occurred despite similar grain yields and were primarily driven by reduced AED rather than higher yields. Overall, our results show that tree-induced microclimatic buffering reduces AED within crop alleys and that resulting differences in WUE strongly depend on the metric used.}, language = {en} } @incollection{LengyelToulouse, author = {Lengyel, Dominik and Toulouse, Catherine}, title = {The interrelationship between architecture and exhibition}, series = {Exhibition matters : contemporary displays and exhibition-making practices}, booktitle = {Exhibition matters : contemporary displays and exhibition-making practices}, editor = {Bianchi, Pamela and Meuris, Wesley}, publisher = {Bloomsbury Academic}, address = {London}, isbn = {978-1-3505-7554-7}, doi = {10.5040/9781350575578.ch-008}, pages = {127 -- 147}, abstract = {Architecture can only be perceived as truly relevant on site in situ; in this respect, exhibitions about architecture always constitute an epistemological dilemma. However, numerous ontological circumstances make it possible to encounter this dilemma in such a way that mediation is nevertheless, and in special cases effectively, possible within restrictions. This is the case when the architecture to be mediated is not or has neither been built in physical reality, but is a purely theoretical construction. Then the form as image coincides with the form as vision. This is to be shown by several exhibited projects in collaboration with archaeologists.}, language = {en} } @misc{AbdulghaniTugraYilmazWinkler, author = {Abdulghani, Tamer and Tugra Yilmaz, Oguzkan and Winkler, Herwig}, title = {The role of information sharing in supply chain collaboration : impacts and emerging opportunities}, series = {Procedia computer science}, volume = {277}, journal = {Procedia computer science}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {1877-0509}, doi = {10.1016/j.procs.2026.02.224}, pages = {1859 -- 1868}, abstract = {Effective supply chain management is essential for competitive advantage in an increasingly complex global marketplace, and information sharing between partners is becoming a strategic necessity. This paper aims to investigate information sharing practices within the supply chain of the fast-moving consumer goods sector. Specifically, it explores the challenges associated with these practices and their influence on collaboration among partners. Additionally, it analyzes the practical effects of technology and Industry 4.0 on these processes, emphasizing their impact on enhancing or reconfiguring supply chain collaboration. As a methodological approach, semi-structured interviews were conducted with three key supply chain actors: a supplier, a logistics service provider, and a retailer. The Gioia method was employed to analyze the interview data, thereby generating a meaningful data structure. This resulted in a conceptual model demonstrating the relationship between information sharing and collaborative supply chain performance, providing practical insights for enhancing integration.}, language = {en} } @misc{NusirAlAssafGerlingetal., author = {Nusir, Mai and Al-Assaf, Amani and Gerling, Charlotte and W{\"a}tzold, Frank}, title = {'It's our water now' : why informal institutions and tribalism matter in the success of water user associations in Jordan Valley}, series = {International journal of water resources development}, journal = {International journal of water resources development}, publisher = {Taylor \& Francis}, address = {London}, issn = {1360-0648}, doi = {10.1080/07900627.2026.2643206}, pages = {1 -- 21}, abstract = {Jordan, among the world's most water-scarce countries, faces severe irrigation challenges in Jordan Valley (JV), its primary agricultural hub. We examine the successful establishment of Water Users Associations (WUA) in JV, focusing on how unwritten social norms, values, and social networks - known as informal institutions - affected and shaped this process. Employing qualitative methods and a customized institutional analysis and development (IAD) framework, we analyse how historical experiences and tribalism influenced institutional change. We find that integrating tribal values, such as collective responsibility, into the WUA implementation process played a pivotal role in their successful establishment.}, language = {en} } @misc{DjoudiAmosseAvironetal., author = {Djoudi, El Aziz and Amoss{\´e}, Ewen and Aviron, St{\´e}phanie and Birkhofer, Klaus and Libereau, Benjamin and Plantegenest, Manuel and P{\´e}tillon, Julien}, title = {Multi‑trophic arthropod communities modulated by local farming system and landscape heterogeneity}, series = {Landscape ecology}, volume = {41}, journal = {Landscape ecology}, publisher = {Springer Nature}, address = {Dordrecht}, issn = {1572-9761}, doi = {10.1007/s10980-026-02298-y}, pages = {1 -- 14}, abstract = {Context Organic farming is increasingly used worldwide in recent decades, but the role of this farming system in shaping the trophic structure of arthropod communities remains poorly understood, especially at different spatial scales. Therefore, the contribution of landscape heterogeneity in shaping arthropod's trophic guilds remain understudied. Objectives In this study, we assessed how the evenness, the abundance and the taxonomic richness of arthropod trophic groups were shaped by the local farming system, landscape heterogeneity (including the percentage of semi-natural habitats and organic fields), and their interaction. Methods Arthropod's trophic guilds (ground and vegetation-dwelling) were sampled in 20 spatial independent pairs of conventional (CF) and organic (OF) fields located in Brittany (Western France) by using pitfall traps and sweep nets replicated in time and space. Results A total of 95,822 arthropods belonging to 197 taxonomic groups were sampled. Farming system has a strong overall positive effect on the community structure of both ground- and vegetation-dwelling arthropods. Landscape heterogeneity, alone and in interaction with farming systems, affected positively the diversity and abundance of most trophic groups for both ground- and vegetation-dwelling arthropods. Organic farming therefore affected the trophic composition of arthropod communities not only locally, but also at the landscape scale. Conclusions Our study highlights the strong positive effect of farming system and the landscape heterogeneity on arthropod communities and more importantly the interconnection between different spatial scales in this process. Taking these aspects into account is therefore crucial in understanding arthropod community dynamics in agroecosystems.}, language = {en} } @misc{StefanMedendorp, author = {Stefan, Glasauer and Medendorp, W. Pieter}, title = {Bayesian model explaining repulsive and attractive biases of the subjective visual vertical}, abstract = {Matlab scripts for the figures published in the paper, including the digitized data from Van Beuzekom AD, Van Gisbergen JA (2000) Properties of the internal representation of gravity inferred from spatial-direction and body-tilt estimates. J Neurophysiol 84(1):11-27. Files: beuzekomsvverr.mat : digitized SVV error data from Van Beuzekom \& Van Gisbergen (2000). beuzekomsvvvar.mat : digitized SVV intra-subject variability data from Van Beuzekom \& Van Gisbergen (2000). model_svv_fit.m : Matlab script for fitting the Bayesian model to the idiotropic model and generating most figures. test2AFCSVV.m : Matlab script for testing SVV adjustment vs. two-alternative forced-choice task. svvfit_beuzekom.m : fitting the model to data from Van Beuzekom \& Van Gisbergen (2000).}, language = {en} } @misc{BoelteUtgenanntSchmidtetal., author = {B{\"o}lte, Jens-Henning and Utgenannt, Stephan and Schmidt, Max and Klepel, Olaf and Bron, Michael and Rokicińska, Anna and Jarczewski, Sebastian and Kuśtrowski, Piotr}, title = {S-doped and N+S-co-doped carbon catalysts in redox reactions}, series = {Microporous and mesoporous materials}, volume = {407}, journal = {Microporous and mesoporous materials}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {1873-3093}, doi = {10.1016/j.micromeso.2026.114129}, pages = {1 -- 11}, abstract = {In this contribution, the effects of heteroatom doping of porous carbon materials with S and N on their ability to catalyze redox-reactions involving the activation of molecular oxygen were investigated. For this purpose, a library of in total 54 undoped, S-doped and N + S-co-doped porous carbons was obtained via a template-based synthesis procedure using mesoporous silica gel as the template. To understand the influence of S on the properties of the doped carbons three different S-containing precursors, namely dimethyl sulfoxide (DMSO), p-toluene sulfonic acid and thiophene, were used. In order to investigate possible synergistic effects of S- and N-co-doping, urea was employed as the sole N-containing precursor. The obtained carbon catalysts were characterized by selected methods such as N2-physisorption at 77 K, X-ray diffraction (XRD), Raman spectroscopy, elemental analysis and X-ray photoelectron spectroscopy (XPS). Each carbon catalyst was tested in the oxidation of sulfurous acid (OSA) to sulfuric acid, the electrochemical oxygen reduction (ORR) and the oxidative dehydrogenation (ODH) of ethylbenzene. Owing to the similar textural and structural properties achieved through template-based synthesis of the carbon catalyst library, the results of the catalytic redox-reactions could directly be related to the respective heteroatom dopant. The observed trends indicate that in these redox-reactions S-species behave somewhat similar to O-species bound on the carbon surface. Furthermore, it can be shown that N + S co-doping rather combines the positive and negative effects of the individual dopants on the activity, than creating a synergistic effect that surpasses the individual contribution.}, language = {en} } @misc{deGildeFuhrmann, author = {de Gilde, Immanuel and Fuhrmann, Prof. Dr. Gregor}, title = {Ausgespielt : eine qualitative Studie zu Beweggr{\"u}nden gegen eine musikalische Professionalisierung}, series = {{\"U}ben \& musizieren research : Zeitschrift f{\"u}r Forschung in der Musizierp{\"a}dagogik}, volume = {Sonderausgabe 2026 MiKADO Musik}, journal = {{\"U}ben \& musizieren research : Zeitschrift f{\"u}r Forschung in der Musizierp{\"a}dagogik}, publisher = {Schott Music GmbH \& Co. KG}, address = {Mainz}, issn = {2748-8497}, url = {http://nbn-resolving.de/urn:nbn:de:101:1-2603101137217.962387848851}, pages = {457 -- 467}, abstract = {Der Beitrag „Ausgespielt - eine qualitative Studie zu Beweggr{\"u}nden gegen eine musikalische Professionalisierung" untersucht die Impulse von Jugendlichen und jungen Erwachsenen mit musikalischer Vorbildung, die sich bewusst gegen ein Musikstudium oder einen musikalischen Beruf entschieden haben. Nach eingehender Analyse der Interviews stellten sich bestimmte Kernmerkmale wie ein starkes Bed{\"u}rfnis nach finanzieller Sicherheit und nach einer verl{\"a}sslichen beruflichen Perspektive, psychosoziale Faktoren wie Leistungsdruck und Angst vor dem Verlust der Leidenschaft heraus. Die Ergebnisse verdeutlichen die komplexen Herausforderungen, mit denen sich das musikp{\"a}dagogische Berufsfeld konfrontiert sieht, und bieten wertvolle Einblicke in die vielf{\"a}ltigen Gr{\"u}nde f{\"u}r eine Entscheidung gegen eine musikalische Professionalisierung.}, language = {de} } @misc{ReimannKohlenbachRoentzschetal., author = {Reimann, Ansgar and Kohlenbach, Paul and R{\"o}ntzsch, Lars and Schneider, Clemens}, title = {Neural network-based model predictive control for waste heat recovery from PEM electrolysis with heat pumps}, series = {Energy conversion and management}, volume = {356}, journal = {Energy conversion and management}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0196-8904}, doi = {10.1016/j.enconman.2026.121305}, pages = {1 -- 20}, abstract = {Hydrogen is expected to play a key role in future energy systems, with PEM electrolysis being particularly suitable for producing hydrogen from renewable sources. However, a significant amount of heat is released during operation. Utilizing this heat in heating networks or industrial processes could improve economic efficiency and help decarbonize the heating sector. Since PEM electrolyzers operate at relatively low temperatures, many applications need heat pumps to increase the temperature of the waste heat. Such a coupled system requires a controller that can handle the thermal management of the electrolysis stack with the heat pump. However, the rapid load changes of a PEM electrolyzer coupled with fluctuating renewable energy sources pose a challenge to the controller, as it must stabilize both the electrolyzer's cooling cycle and the heat pump's refrigeration cycle simultaneously. Therefore, this paper presents a model predictive controller (MPC) based on neural networks that efficiently controls waste heat recovery while meeting the temperature requirements of the electrolyzer and the heat sink. We investigated the performance of the control strategy in numerical case studies and compared it with conventional control using proportional-integral (PI) controllers. We could demonstrate that our method provides significant improvements in terms of minimizing temperature fluctuations and maximizing heat recovery efficiency. Under the influence of volatile power input, the MPC could increase the average efficiency of the heat pump by up to 7 \%, reduce the use of auxiliary heating energy by up to 52 \%, and reduce the average and maximum deviation from the temperature setpoints by up to 1.4 K and 10.4 K, respectively, compared to PI control.}, language = {en} } @misc{GebhardSeidlitz, author = {Gebhard, Johannes and Seidlitz, Holger}, title = {Disassembly-optimized thermoplastic rivet connection for vehicle interiors}, series = {ATZ worldwide}, volume = {128}, journal = {ATZ worldwide}, number = {2-3}, publisher = {Springer Science and Business Media LLC}, address = {Wiesbaden}, issn = {2192-9076}, doi = {10.1007/s38311-025-2167-9}, pages = {16 -- 23}, abstract = {Repairs to some interior components are made difficult by a large number of non-detachable connecting elements. In addition, environmental regulations are calling for a transition to circular models. Mercedes-Benz has developed a rivet solution that ensures quick, cost-effective disassembly and reassembly of components using recyclable materials.}, language = {en} } @misc{ZaissPowellHaasetal., author = {Zaiß, Felix and Powell, John and Haas, Michael and Diegel, Christian and Schricker, Klaus and Bergmann, Jean Pierre and Spurk, Christoph and Hummel, Marc and Olowinsky, Alexander and Beckmann, Felix and Moosmann, Julian and Hagenlocher, Christian and Graf, Thomas}, title = {Core-ring laser welding : the influence of ring diameter on the capillary dynamics and the formation of pores in the resulting weld}, series = {Lasers in manufacturing and materials processing}, journal = {Lasers in manufacturing and materials processing}, publisher = {Springer Science and Business Media LLC}, address = {New York, NY}, issn = {2196-7229}, doi = {10.1007/s40516-026-00331-1}, pages = {21}, abstract = {Double-core fibers that deliver laser beams with adjustable amounts of power to the central core and the surrounding ring component of the fiber are of major interest for optimizing laser welding processes. However, the central focussed laser spot and the ring diameters are fixed by the fiber dimensions, the focusing optics, and the laser systems involved. This work investigates the influence of different ring beam diameters, with a constant central spot diameter, on the capillary dynamics and the formation of pores in the resulting welds in 1.4301 stainless steel (X5CrNi18-10, AISI 304). The different core-ring configurations were achieved using specially designed beam-shaping optics. The generation of pores during the welding process was examined by means of synchrotron X-ray imaging. The results show that different ring diameters have a profound effect on the melt pool geometry, the capillary shape and the location of the capillary collapse which gives rise to pore formation in the weld. In the examples presented here, larger ring diameters extended the melt pool in the direction of welding without contributing directly to the capillary evaporation. In this case the narrow, deep capillaries which are created by the core beam alone can bulge and collapse, trapping vapor and gas to create large pores. If, however, the ring beam has a small enough diameter, it can help to produce a wider capillary which does not trap gas and create pores in the same way. The mechanisms by which large bubbles in the melt can result in non-spherical pores in the weld are also explained.}, language = {en} } @misc{MargolisSchmidtBoeckeletal., author = {Margolis, Anna and Schmidt, Simon L. and B{\"o}ckel, Alexa and Blomsma, Fenna}, title = {Applying design science in creativity and innovation management research : a decision guide for deepening research practice}, series = {Creativity and innovation management}, journal = {Creativity and innovation management}, publisher = {John Wiley \& Sons Ltd.}, address = {Hoboken, NJ}, issn = {1467-8691}, doi = {10.1111/caim.70049}, pages = {1 -- 38}, abstract = {Creativity and innovation management research (CIMR) seeks to understand how creative and innovative solutions emerge. Recently, greater practitioner engagement, interdisciplinary integration, process orientation and context-sensitive impact measurement have been proposed as realms of further development. To address these opportunities, we introduce Design Science Research (DSR) as a complementary methodology for CIMR. DSR connects theory and practice through the iterative development of practice-oriented artifacts that are grounded in theory, thus enabling scholars to co-create actionable tools jointly with practitioners. We have adapted DSR to the unique characteristics of CIMR—such as interdisciplinarity, process orientation and pluralist ontological and epistemological positions—by developing the DeepDSR Guide. The DeepDSR Guide supports CIMR scholars in making consistent and reflexive methodological choices throughout DSR projects. We have iteratively developed and validated the DeepDSR Guide with feedback from 21 scholars following a DSR approach. Our study contributes methodologically by adapting DSR to fit the pluralist, creative nature of CIMR and expands the application of DSR in management research.}, language = {en} } @misc{ArnoukBehmBorck, author = {Arnouk, Annamria and Behm, Martin and Borck, Christian}, title = {Architecture for digital twins in manual assembly within the industrial metaverse}, series = {Automation, Robotics \& Communications for Industry 4.0/5.0 : proceedings of the 6th Winter IFSA Conference on Automation, Robotics \& Communications for Industry 4.0/5.0/6.0 (ARCI' 2026)}, journal = {Automation, Robotics \& Communications for Industry 4.0/5.0 : proceedings of the 6th Winter IFSA Conference on Automation, Robotics \& Communications for Industry 4.0/5.0/6.0 (ARCI' 2026)}, editor = {Yurish, Sergey Y}, publisher = {IFSA Publishing, S. L.}, address = {Barcelona, Spain}, isbn = {978-84-09-82030-6}, issn = {2938-4796}, doi = {10.13140/RG.2.2.34764.27526}, pages = {5 -- 12}, abstract = {This paper presents a modular digital twin framework tailored for manual assembly processes within the broader context of the industrial metaverse. Leveraging the NVIDIA Omniverse ecosystem and the Universal Scene Description (USD) format, the architecture unifies design and operational data through sensor-driven inference and real-time extended reality (XR) feedback. The focus is placed on integrating a part of a worker guidance system for detecting assembly actions, defining and controlling USD SubLayers for up-to-date representations of the assembly state, enabling adaptive operator support and establishing closed-loop systems to enable continuous process optimization. The study lays a foundation for scalable deployment across high-variability production environments.}, language = {de} } @misc{OPUS4-37939, title = {Physiotherapie evidenzbasiert Band 2 : aktuelle Studien f{\"u}r Lehre, Forschung und Praxis}, editor = {Kopkow, Christian and Elsner, Bernhard}, edition = {2. Auflage}, publisher = {Urban \& Fischer in Elsevier}, address = {M{\"u}nchen}, isbn = {978-3-437-45125-6}, pages = {XIV, 210}, abstract = {Schlagen Sie den Bogen von der Wissenschaft zur Praxis - Physiotherapie evidenzbasiert, Band 2, macht es Ihnen erneut leicht, die neuesten Erkenntnisse der Forschung in Ihre Arbeit zu integrieren. Basierend auf internationalen Studien werden wissenschaftliche Erkenntnisse so pr{\"a}sentiert, dass sie gut verst{\"a}ndlich, nachvollziehbar und einfach auf die Praxis {\"u}bertragbar sind. Aus den f{\"u}r die Physiotherapie relevanten Fachbereichen Didaktik, Digitalisierung und Technologien, Geriatrie, Innere Medizin, Pelvic Health, Muskuloskelettale Physiotherapie, Neurologie, P{\"a}diatrie und Trainingslehre werden ausgew{\"a}hlte Studien vorgestellt und anhand eines einheitlichen Musters beleuchtet: Grundlagen des Themas ({\"u}bersetzter) Abstract Zusammenfassung der Ergebnisse Bewertung der wissenschaftlichen Qualit{\"a}t Praxistipp Einordnung in den Gesamtkontext der Physiotherapie. So bietet Physiotherapie evidenzbasiert Physiotherapeutinnen und -therapeuten in Ausbildung, Studium und Praxis einen umfassenden {\"U}berblick {\"u}ber Studiendesigns und wissenschaftliches Arbeiten, Clinical Reasoning Prozesse und Differenzialdiagnostik. Auch f{\"u}r Lehrende und Forschende im Fachgebiet der Physiotherapie und Gesundheitswissenschaften ist Physiotherapie evidenzbasiert eine wertvolle Ressource, um mehr {\"u}ber aktuelle Forschungsergebnisse und wissenschaftliche Erkenntnisse zu Therapiem{\"o}glichkeiten zu erfahren. Unser Plus f{\"u}r Sie: Am Ende jedes Kapitels fasst eine Take-Home-Message noch einmal zusammen, was die jeweilige Studie f{\"u}r Ihre Arbeit in der Physiotherapie bedeutet und wie Sie das Wissen in der Praxis umsetzen. Neu in Band 2 53 aktuelle Studien Glossar 5-Schritte-Ansatz zum evidenzbasierten Arbeiten.}, language = {de} } @misc{MaldonadoAcalOrtizetal., author = {Maldonado, D. and Acal, C. and Ortiz, H. and Navas-Gomez, F. and Cantudo, A. and Wenger, Christian and P{\´e}rez, Eduardo and Rold{\´a}n, J.B.}, title = {Variability in HfO₂-based memristors under pulse operation}, series = {Microelectronic engineering}, volume = {304}, journal = {Microelectronic engineering}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0167-9317}, doi = {10.1016/j.mee.2026.112445}, pages = {1 -- 8}, abstract = {We have studied device-to-device variability in TiN/Ti/HfO2/TiN devices under pulse operation. We measured extensively memristive devices that are CMOS integrated with different pulse trains, changing the pulse width and amplitude for groups of more than one hundred devices. The statistical parameters of the measured current were extracted to better understand the device physics under the pulse operation regime. An analytical model to describe synaptic depression and potentiation behavior in the device conductance is introduced, it fits accurately the means of the current data for all the pulse trains under study. In addition, an explanation of the measurements is enlightened with kinetic Monte Carlo simulations that allow the study of resistive switching at the atomic level. Finally, the probability distribution functions of the measured currents in some of the pulses within the pulse series employed are analyzed to extract the probability distribution that works better. A proposal for the implementation of device-to-device variability in the Stanford models is introduced.}, language = {en} } @misc{BirkhoferWaetzoldRemelgadoetal., author = {Birkhofer, Klaus and W{\"a}tzold, Frank and Remelgado, Ruben and Addison, Pia and Aigbedion-Atalor, Pascal and Cord, Anna F. and Ekesi, Sunday and Mutamiswa, Reyard and Rwomushana, Ivan}, title = {A framework for multidimensional management of invasive alien insect pests in sub-Saharan Africa}, series = {Journal of applied entomology}, journal = {Journal of applied entomology}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0931-2048}, doi = {10.1111/jen.70060}, pages = {1 -- 10}, abstract = {Invasive alien insect pests pose a significant threat to achieving sustainable food systems in sub-Saharan Africa, where reliance on synthetic pesticides has led to unsustainable practices due to high costs and health and environmental risks. This article presents a multidimensional framework for managing invasive alien insect pests in sub-Saharan Africa, specifically directed at researchers, policymakers, non-governmental organisations and other institutions responsible for invasive pest management as well as extension services for farmers. Invasive pests, such as the Oriental fruit fly and the fall armyworm, and a highly damaging native species for comparison are central to the framework. The framework considers the environmental, socio-economic, and regulatory dimensions of pest management decisions. It reviews different control strategies used against invasive alien pests, highlighting their limitations and environmental impacts. By considering farmer characteristics, institutional support, market demands, and regulatory policies, the article emphasises the need for integrated pest management approaches. The aim is to contribute to the development of sustainable, effective pest management strategies that will ensure long-term agricultural productivity and food security in sub-Saharan Africa.}, language = {en} } @misc{AlfeusHeringDjoudietal., author = {Alfeus, Martha and Hering, Robert and Djoudi, El Aziz and Angombe, Simon and Birkhofer, Klaus}, title = {Encroaching shrub species alter arthropod community composition and trophic structure in southern African rangeland ecosystems}, series = {Agriculture, ecosystems \& environment}, volume = {396}, journal = {Agriculture, ecosystems \& environment}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {1873-2305}, doi = {10.1016/j.agee.2025.110016}, pages = {1 -- 10}, abstract = {Bush encroachment is rapidly transforming savannah and grassland ecosystems in southern Africa, altering vegetation structure and ecosystem functioning, while reducing rangeland productivity. Despite these shifts, its effects on local biodiversity, particularly arthropod communities remain understudied. This study evaluated the arthropod communities within areas dominated by three major encroaching shrub species in southern Africa: Dichrostachys cinerea, Senegalia mellifera and Terminalia sericea. Arthropods were sampled in northcentral Namibia using pitfall traps (ground-dwelling), pan traps (flying), and shrub beating (canopy-dwelling) during both wet and dry seasons. Arthropod community composition differed significantly among encroaching species, primarily driven by canopy-dwelling arthropods. Senegalia mellifera supported distinct communities distinguished by the exclusive presence of woodlice (Isopoda), while, D. cinerea and T. sericea plots hosted distinct taxa, including Caelifera, Mantodea and Strepsiptera. Also the trophic composition differed among shrubs, with omnivores dominating S. mellifera and phytophagous arthropods dominating D. cinerea plots. Formicidae and Collembola were numerically dominant across all plots. Brachycera, Curculionidae and Collembola were highly sensitive to local environmental variation, indicating their potential as bio-indicators for monitoring shrub encroachment and effectiveness of management interventions. Overall arthropod abundance positively correlated with ground cover, while taxonomic diversity showed a negative relationship. Therefore, conservation efforts in bush encroached areas should promote vegetation management strategies that enhance structural heterogeneity to support greater arthropod diversity. Our findings provide a key baseline on how encroaching shrub species affect arthropods, highlighting the need to consider invertebrate biodiversity in de-bushing efforts in southern Africa, which have traditionally focused on rangeland productivity over ecological impacts.}, language = {en} } @misc{BaumgaertnerNozakiReuneretal., author = {Baumg{\"a}rtner, Kiana and Nozaki, Misa and Reuner, Marvin and Wind, Nils and Haniuda, Masato and Metzger, Christian and Heber, Michael and Kutnyakhov, Dmytro and Pressacco, Federico and Wenthaus, Lukas and Hara, Keisuke and Chordiya, Kalyani and Min, Chul-Hee and Beye, Martin and Reinert, Friedrich and Roth, Friedrich and Kr Mahatha, Sanjoy and Madsen, Anders and Wehling, Tim and Niki, Kaori and Popova-Gorelova, Daria and Rossnagel, Kai and Scholz, Markus}, title = {Femtosecond concerted rotation of molecules on a 2D material interface}, series = {Nature communications}, volume = {17}, journal = {Nature communications}, publisher = {Springer Nature}, address = {Berlin}, issn = {2041-1723}, doi = {10.1038/s41467-026-69801-6}, pages = {1 -- 8}, abstract = {Interfaces between molecules and 2D materials exhibit energy-driven functionalities, wherein charge transfer directs molecular motion. Unlike equilibrium systems, where molecular assemblies settle into static configurations, continuous energy input can drive transient, collective molecular rearrangements. Here, we reveal ultrafast spectroscopic fingerprints of a collective rotational response of molecules on a 2D material following photoexcitation. Our results suggest that photoinduced charge transfer reshapes the interfacial energy potential, giving rise to macroscopic, unidirectional molecular rotation and the formation of a homochiral molecular arrangement. Using a multiplexed ultrafast photoemission spectroscopy approach, we simultaneously track electronic states, atomic positions, and orbital wavefunctions with femtosecond and sub-{\AA}ngstr{\"o}m resolution. Multimodal valence and core electron emission analysis disentangles the intertwined electronic-structural dynamics of the molecule and the 2D material, revealing the dynamic modulation of charge distribution and intermolecular forces that drive collective molecular motion. Our findings open a pathway for designing energy-driven molecular systems with tunable interfacial dynamics, with potential applications in chiral engineering and active matter systems.}, language = {en} } @misc{SaadiHadidCunninghametal., author = {Saadi, Ibtissam and Hadid, Abdenour and Cunningham, Douglas W. and Taleb-Ahmed, Abdelmalik and El hillali, Yassin}, title = {PE-CLIP : a parameter-efficient fine-tuning of vision language models for dynamic facial expression recognition}, series = {ACM transactions on multimedia computing, communications, and applications}, journal = {ACM transactions on multimedia computing, communications, and applications}, publisher = {Association for Computing Machinery (ACM)}, address = {New York, NY}, issn = {1551-6857}, doi = {10.1145/3786789}, pages = {24}, abstract = {The emergence of Vision-Language Models (VLMs) like CLIP (Contrastive Language-Image Pretraining) provides appealing solutions to various vision problems including Dynamic Facial Expression Recognition (DFER). However, most of the proposed approaches face major challenges, particularly related to inefficient full fine-tuning of the encoders and the complexity of the models. Moreover, some of the proposed methods seem to struggle with suboptimal performance due to (i) poor alignment between textual and visual representations, and (ii) ineffective temporal modeling. To address these challenges, we propose PE-CLIP, a parameter-efficient fine-tuning (PEFT) framework that elegantly adapts CLIP for dynamic facial expression recognition, requiring significantly reduced number of trainable parameters while maintaining high accuracy. At its core, to enhance efficiency and performance, PE-CLIP introduces two specialized adapters namely a Temporal Dynamic Adapter (TDA) and a Shared Adapter (ShA). The temporal dynamic adapter is a GRU-based module with a dynamic scaling mechanism, capturing sequential dependencies while adaptively modulating the contribution of each temporal feature to emphasize the most informative ones while mitigating irrelevant variations. The shared adapter is a lightweight adapter refine representations within both textual and visual encoders, ensuring consistent feature processing while maintaining parameter efficiency. Additionally, we leverage Multi-modal Prompt Learning (MaPLe), which introduces learnable prompts to both visual and action unit-based textual description inputs, further improving the semantic alignment between modalities and enabling the efficient adaptation of CLIP for dynamic tasks. We evaluate our proposed PE-CLIP on two benchmark datasets, namely DFEW, FERV39K, and AFEW, achieving competitive performance compared to state-of-the-art methods while requiring fewer trainable parameters. By striking an optimal balance between parameter efficiency and performance, PE-CLIP sets a new benchmark in resource-efficient DFER. The source code of the proposed PE-CLIP will be publicly available at https://github.com/Ibtissam-SAADI/PE-CLIP .}, language = {en} } @misc{DreyerMuellerBernascheketal., author = {Dreyer, Christian and M{\"u}ller, Vivian C. and Bernaschek, Andreas and Frahm, Mike and Jankowski, Benjamin and Elagroudy, Youssef and Koppusch, Klarissa and Fiedler, Tom and Eckert, Angelika and Tatai, Tiberiu Mihai and Borges, Ralf and Behrendt, Felix and Fricke, Anna and Schreiner, Monika and Seidlitz, Holger}, title = {Functional integration of photonic components for (vertical) urban farming}, series = {Photonic Technologies in Plant and Agricultural Science III}, journal = {Photonic Technologies in Plant and Agricultural Science III}, editor = {Heinemann, Dag and Polder, Gerrit}, publisher = {SPIE}, address = {Bellingham, WA}, issn = {277-786X}, doi = {10.1117/12.3081069}, abstract = {The project Food4Future (F4F) is a long-term initiative funded by the German government. The decade-long project aims to develop groundbreaking ideas for urban farming, along with the corresponding materials, technologies and processes. It considers various future scenarios such as the collapse of global supply chains ("no trade") and a severe shortage of arable land ("no land"). Different strategies for cultivating organisms such as crickets, jellyfish, halophytes and algae in an urban environment are being developed. New modular cultivation compartments have been constructed and built which can be used as stand-alone units or in a paternoster (continuous loop) system. An overview is given on the functional integration of SMD-LEDs, ranging from large planar flat units for halophyte cultivation to salt water-resistant UV-LED light sabers for algae cultivation and LEDs integrated directly into transparent composites.}, language = {en} } @article{FitzScheeg, author = {Fitz, Lukas R.G. and Scheeg, Jochen}, title = {Exploring design principles for SME complementor-suitable digital platforms}, series = {Acta informatica pragensia}, volume = {15}, journal = {Acta informatica pragensia}, number = {2}, publisher = {Prague University of Economics and Business}, address = {Prague}, issn = {1805-4951}, doi = {10.18267/j.aip.307}, pages = {1 -- 18}, abstract = {Background: Some of the world's most valuable platform businesses rely on products and services provided by small and medium-sized enterprises (SMEs). Though, the modern digital platform economy is increasingly shaped by uncertainties and power asymmetries benefitting dominant platform owners and threatening smaller players participating as complementors in those ecosystems. Negative consequences include lock-in effects and platform dependency, exploitative participation terms and eroded entrepreneurial autonomy on the SMEs' side, which altogether harm the digital platforms' long-term viability, too. Addressing these issues, this paper investigates design principles for digital platforms taking SME complementors' needs into account. Objective: This study investigates design principles for digital platforms that enhance suitability for SMEs as complementors, focusing on stakeholder-centric platform design approaches that better accommodate SME-specific needs and requirements. In this, this study aims to address current negative developments concerning imbalanced power dynamics and uncertainties emerging from platform owner-SME-partnerships in dominant digital platform ecosystems. Methods: A qualitative reflective meta-analysis approach was employed, combining explorative expert interviews with SME specialists and a thematic literature review of SME platform design research. The methodology synthesized findings to identify meta-requirements and derive design principles through interpretive analysis. Results: Eleven meta-requirements were identified and synthesized into four design principles: the principle of SME empowerment, the principle of open boundaries, the principle of transparent and fair participation terms, and the principle of reflection of individuality. In combination, these principles pro-pose a framework for future digital platform design that takes SME complementor needs into account. Conclusion: The conceptual proposal of four design principles guides researchers and practitioners in creating SME-suitable digital platforms with stakeholder-centric design approaches. The principles enable digital platform models that accommodate diverse SME requirements, enhance participation experiences, and foster collaborative ecosystems tailored to SME characteristics and their operational contexts.}, language = {en} } @misc{Fitz, author = {Fitz, Lukas R. G.}, title = {A sandboxing canvas for value-sensitive designs of launching digital platforms}, series = {Systems research and behavioral science}, journal = {Systems research and behavioral science}, publisher = {Wiley}, address = {Hoboken, NJ}, issn = {1092-7026}, doi = {10.1002/sres.70006}, pages = {1 -- 15}, abstract = {Launching a new digital platform business comes with a range of complex challenges: How to overcome the chicken-or-egg dilemma of simultaneously attracting value providers and consumers? How to create a unique customer experience, orchestrate value creation, reach and maintain a critical mass of users, and foster positive network effects? While various strategic guidelines address these business challenges individually, growing concerns about the ethical implications of platform power dynamics have highlighted the need for more holistic guidelines to pursue value-oriented and responsible digital platform launch strategies. In response to that, this paper makes a novel contribution by proposing a canvas addressing the dual role of launching digital platform entrepreneurs as both designers and strategists. It builds on the principles of value-sensitive design (VSD) and manifests the idea behind moral sandboxing within a practical canvas instrument, aiming to increase reflexivity in digital platform design processes. The canvas' applicability is consequently demonstrated through the illustrative analyses of two early-stage digital platforms. All in all, this application-oriented study enhances the discussion on VSD in the context of digital platform design from an emergent perspective combining information systems, business ethics and entrepreneurship research.}, language = {en} } @misc{SchowarteRiedelHelleetal., author = {Schowarte, Julia and Riedel, Ramona and Helle, Sven and Martienssen, Marion and Arellano-Garcia, Harvey}, title = {Synergistic enhancement of PFOA and 6:2-FTAB photodegradation using Au/Y-doped TiO₂ nanocatalysts}, series = {Chemical engineering journal advances}, volume = {26}, journal = {Chemical engineering journal advances}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {2666-8211}, doi = {10.1016/j.ceja.2026.101121}, pages = {1 -- 12}, abstract = {Efficient degradation of perfluoroalkyl substances (PFAS) requires photocatalysts capable of promoting strong C-F bond cleavage and selective interfacial charge transfer. In this proof-of-concept-study, a dual-doped TiO2 nanophotocatalyst (Au2/Y5/P25) was synthesized by combining gold (Au) nanoparticles and yttrium (Y) dopants to enhance charge separation and reactive oxygen species (ROS) generation. Structural characterization supported Au deposition on the TiO2 surface and Y incorporation into the lattice, accompanied by a slight band-gap narrowing. Under UV irradiation in aqueous solution (unbuffered pH 5.8, room temperature) the nanophotocatalyst exhibited distinct degradation pathways for 1000 µg L-1 of two representative PFAS, perfluorooctanoic acid (PFOA) and Capstone B (6:2 FTAB), reflecting environmentally prevalent groups. PFOA underwent 99 \% degradation within 100 min via a stepwise CF2-cleavage mechanism, generating a sequence of perfluorocarboxylic acids down to perfluorobutanoic acid (PFBA), consistent with enhanced electron-hole separation. In contrast, Capstone B showed rapid, single-step S-N bond cleavage to 6:2 perfluorooctanesulfonic acid (6:2 PFOS), primarily driven by hole- and •OH-mediated oxidation under oxygen-rich conditions. This process achieved 96 \% degradation within 20 min but did not proceed to further defluorination, indicating oxidative limitations. Dissolved oxygen analysis revealed efficient electron utilization and sustained oxidative turnover without excessive oxygen depletion. The findings demonstrate that Au/Y co-doping promotes selective PFAS activation, enabling rapid precursor oxidation while exposing the kinetic limits of secondary C-F bond cleavage. These discoveries offer new insights into the design of plasmonic-rare-earth-modified TiO2 photocatalysts for efficient PFAS degradation through interface-driven oxidation pathways.}, language = {en} } @incollection{ShetyeGuptaAlbrecht, author = {Shetye, Niyanta and Gupta, Meetali and Albrecht, Eike}, title = {Re-calibrating the Paris Agreement to integrate natural and cultural heritage discourses into the international climate negotiations}, series = {The Routledge handbook on cultural heritage and climate justice}, booktitle = {The Routledge handbook on cultural heritage and climate justice}, editor = {Dinler, Mesut and Megarry, William}, edition = {1st Edition}, publisher = {Routledge}, address = {London}, isbn = {9781003595205}, doi = {10.4324/9781003595205-9}, pages = {68 -- 82}, abstract = {The impact of climate change on cultural and natural heritage has gained increasing attention from policymakers. Rising sea levels and extreme weather conditions pose significant threats, particularly to the heritage of small island developing states and least developed countries. These challenges are expected to intensify both economic and non-economic losses, highlighting the need for a recalibration of international climate policies and financial mechanisms to include heritage preservation. However, heritage remains largely overlooked in global climate policy frameworks. Its inclusion has been limited to the Warsaw International Mechanism on Loss and Damage and the UAE Framework for Global Climate Resilience. Additionally, key mechanisms of the Paris Agreement—such as Nationally Determined Contributions (NDCs), National Adaptation Plans (NAPs), and the Global Stocktake—fail to sufficiently integrate heritage concerns, despite their importance in building climate resilience. Addressing this gap requires expanding climate policy discussions to incorporate insights from heritage experts, policymakers, and networks. This research assesses the existing knowledge and policy gap, analysing how heritage is considered in submitted NDCs and NAPs. By identifying these gaps, it proposes strategies for embedding heritage into climate policy, ensuring its role in achieving climate-neutral and resilient futures.}, language = {en} } @misc{DanilaKunzRoentzsch, author = {Danila, Kevin and Kunz, Philip and R{\"o}ntzsch, Lars}, title = {Low-temperature electrolysis model optimized for improved performance in dynamic simulations}, series = {International journal of hydrogen energy}, volume = {223}, journal = {International journal of hydrogen energy}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0360-3199}, doi = {10.1016/j.ijhydene.2026.154294}, pages = {1 -- 12}, abstract = {Traditional hydrogen production methods contribute significantly to greenhouse gas emissions, making technological change essential. Water electrolysis powered by renewable energy offers a promising route for sustainable hydrogen production. However, the variability of renewables challenges efficient electrolyzer operation, often requiring detailed simulations with long time series and high computational effort. We present a dynamic model of a low-temperature electrolyzer system optimized for computational efficiency. The model increases computational speed by a factor of 1000 compared to full-balance models while maintaining accuracy above 99\% in hydrogen prediction. The simplified model is used to investigate the benefits of modularization in large-scale hydrogen plants. Results show that modularization has a minor effect on overall output but significantly increases operational time. This extended production window can reduce the need for large-scale hydrogen storage, especially when integrated with a continuous hydrogen consumer.}, language = {en} } @misc{GebhardSeidlitz, author = {Gebhard, Johannes and Seidlitz, Holger}, title = {Demontagegerechte thermoplastische Nietverbindung f{\"u}r das Fahrzeuginterieur}, series = {Automobiltechnische Zeitschrift : ATZ}, volume = {128}, journal = {Automobiltechnische Zeitschrift : ATZ}, number = {2-3}, publisher = {Springer Professional}, issn = {0001-2785}, doi = {10.1007/s35148-025-2330-z}, pages = {16 -- 23}, abstract = {Bei einigen Interieurkomponenten werden Reparaturen durch eine Vielzahl an nichtl{\"o}sbaren Verbindungselementen erschwert. Zudem fordern {\"o}kologische Vorgaben den {\"U}bergang zu Kreislaufmodellen. Bei Mercedes-Benz hat man eine Nietl{\"o}sung erarbeitet, die eine schnelle, kosteng{\"u}nstige De- und Remontage von Bauteilen unter Verwendung wiederverwertbarer Materialien gew{\"a}hrleistet.}, language = {de} } @incollection{KoehlerSeidlitz, author = {K{\"o}hler, Mathias and Seidlitz, Holger}, title = {Bio-Based Resins}, series = {ASM handbook : 21 composites}, booktitle = {ASM handbook : 21 composites}, editor = {Gianaris, Nicholas J. and Russell, John D.}, publisher = {ASM International}, address = {Materials Park, Ohio}, isbn = {978-1-62708-489-5}, doi = {10.31399/asm.hb.v21.a0007096}, pages = {1 -- 11}, abstract = {This article provides a general overview of bio-based resins, first examining biological sources for feedstocks of bio-based resin components, followed by a detailed description of five major resin classes (phenolic, furane, unsaturated polyester, epoxy, and benzoxazine resins) and their bio-based alternatives. It also describes the methods used to synthesize and modify the bio-based resins based on the biological feedstock, manufacturing processes, and properties of neat resins in comparison to fiber-reinforced composites. Then, the current work on novel bio-based vinyl ester, acrylic, and bismaleimide resins is highlighted. The article also reviews the work on the use of renewable resources to produce bio-resins with respect to composite applications, because only the development of bio-based resins leads to the production of sustainable green composites.}, language = {en} } @book{Abdulghani, author = {Abdulghani, Tamer}, title = {Der Einsatz digitaler Reifegradmodelle zur Steuerung der digitalen Transformation hin zur Dekarbonisierung}, editor = {Winkler, Herwig}, publisher = {Logos Verlag}, address = {Berlin}, isbn = {978-3-8325-6061-4}, pages = {IX, 208}, abstract = {Die digitale Transformation und die Dekarbonisierung stellen Unternehmen vor die Herausforderung, ihre Gesch{\"a}ftsmodelle angesichts des Klimawandels grundlegend neu auszurichten und Nachhaltigkeit systematisch zu integrieren. Vor dem Hintergrund untersucht diese Arbeit, welche Rolle digitale Schl{\"u}sseltechnologien beim Erreichen von Dekarbonisierungszielen spielen. Im Fokus stehen die Fragen nach dem Beitrag neu entstehender digitaler Technologien in verschiedenen Sektoren, nach entscheidenden Erfolgsfaktoren f{\"u}r Unternehmen sowie nach M{\"o}glichkeiten zur Bewertung des eigenen Reifegrades und zur Identifikation von Verbesserungspotenzialen. Methodisch basiert die Untersuchung auf einer umfassenden Literaturanalyse sowie der Entwicklung eines Artefakts im Rahmen eines Design-Science-Research-Ansatzes. Zentrales Ergebnis ist die Entwicklung eines Reifegradmodells f{\"u}r digitale Dekarbonisierung mit neun Dimensionen und f{\"u}nf Reifegradstufen. Das entwickelte Modell unterst{\"u}tzt Unternehmen dabei, ihre digitale Transformation gezielt zu steuern, um sowohl wirtschaftliche Potenziale zu erschließen als auch CO2-Emissionen durch den strategischen Einsatz digitaler Technologien zu reduzieren. Die Ergebnisse verdeutlichen, dass der Weg zur Dekarbonisierung vielf{\"a}ltig und flexibel ist. Entscheidend ist dabei eine gezielte Abstimmung von Investitionen, Prozessverbesserungen und langfristiger Planung, die sich an den spezifischen Rahmenbedingungen der Unternehmen orientiert.}, language = {de} } @misc{HinkelmannHellwegerPutschewetal., author = {Hinkelmann, Reinhard and Hellweger, Ferdi and Putschew, Anke and Marx, Christian and Schlotz, Nina and Zhang, Yangwei}, title = {Hydrological processes in urban systems}, series = {Hydrological processes}, volume = {40}, journal = {Hydrological processes}, number = {2}, publisher = {Wiley}, address = {Hoboken, NJ}, issn = {0885-6087}, doi = {10.1002/hyp.70416}, pages = {1 -- 3}, language = {en} } @misc{SchwickertGrenzdoerffer, author = {Schwickert, Samantha and Grenzd{\"o}rffer, Sinje}, title = {Cycles of (in)visibility : evolvements, constancies, and frictions of menstrual cycles at work}, series = {Frontiers in sociology}, volume = {2026}, journal = {Frontiers in sociology}, number = {11}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2297-7775}, doi = {10.3389/fsoc.2026.1642858}, pages = {1 -- 17}, abstract = {Introduction: Around half of all working bodies experience a menstrual cycle for a significant part of their (working) lives, followed by (peri-)menopause. Yet, the implications of cyclic embodiment and bodily transitions remain well-concealed, stigmatized, and insufficiently integrated into work organization. Theoretically positioned within critical menstruation research with focus on work organization, our study enhances existing research by offering a cyclic perspective which considers the whole menstrual cycle, including changing symptoms over time and the transition to (peri-)menopause. By changing the default linear perspective to a cyclic one, we frame the menstrual cycle as a collective workplace issue rather than an individual inconvenience or problem and advocate for policy reforms. This perspective foregrounds a more holistic understanding of work organization that accounts for diverse and changing body realities. Methods: For this purpose, we carried out a longitudinal study (2021-2025) to explore and evaluate the effects of the menstrual cycle on the professional lives of women and people with menstrual cycles (WPMC) in Germany. Insights from qualitative interviews and action research workshops during this time period are supplemented by expert perspectives from Germany, Belgium, Ireland and Spain. Results: The results are organized alongside a differentiation between three spheres (1) individual sphere, (2) organizational sphere, (3) societal sphere. We find that growing awareness, generational shifts, and feminist practices are slowly opening spaces for cycle-sensitive and more caring work cultures, despite ongoing stigma, resistant structural barriers, and anticipated backlashes. Discussion: Our analysis shows that cyclic practices are largely individualized, which risks burdening WPMC with the additional work of finding solutions for cyclic symptoms within ongoing linear, meritocratic work structures. To counteract these dynamics, this study proposes rethinking workplaces by setting cyclic working bodies as the default. In this way, they are built to accommodate diverse and changing embodied experience by equally valuing care as well as times of regeneration.}, language = {en} } @misc{DanilaVollmerKunz, author = {Danila, Kevin and Vollmer, Jan and Kunz, Philip}, title = {Performance evaluation of reanalysis models for upsampling of solar irradiance and wind speed data}, series = {Renewable energy}, volume = {261}, journal = {Renewable energy}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0960-1481}, doi = {10.1016/j.renene.2026.125301}, pages = {1 -- 13}, abstract = {The transition to renewable energy sources is a cornerstone of modern energy system transformation. Yet, the integration of solar and wind power remains challenging due to limited availability of high-resolution time series data. Accurate modeling and forecasting of renewable energy generation are essential for grid stability, and the effective deployment of technologies such as water electrolysis. However, most available datasets are provided at coarse temporal resolutions, which restricts their utility for dynamic system analysis and hinders the development of robust operational strategies. This study addresses this critical gap by evaluating the performance of reanalysis models and introducing a statistical upsampling approach that generates data with 1-min resolution from reanalysis data with 1-h resolution using a first-order Markov chain Monte Carlo method. The method is validated against measured data. The normalized root-mean-square error of the simulated data is less than 10\% and the mean intra-hour standard deviation differs from 4.8\% to 9.1\% compared to measured values for solar irradiance and wind speed. The generated data facilitates the optimization of system operation, and enhances the planning of sector-coupled infrastructures. Ultimately, this approach enables reliable integration of renewable energy despite limited data availability and thus contributes to the advancement of the sustainable energy transition.}, language = {en} } @misc{EckdahlNieradzikRuetting, author = {Eckdahl, Johan A. and Nieradzik, Lars and R{\"u}tting, Louise}, title = {Reassessing boreal wildfire drivers enables high-resolution mapping of emissions for climate adaptation}, series = {Science advances}, volume = {12}, journal = {Science advances}, number = {9}, publisher = {American Association for the Advancement of Science (AAAS)}, address = {Washington, DC}, issn = {2375-2548}, doi = {10.1126/sciadv.adw5226}, pages = {1 -- 11}, abstract = {The expansive carbon reservoirs of the boreal region are becoming some of the most rapidly growing sources of greenhouse gasses under a positive feedback between intensifying fire activity and climate change. However, current regional-scale methods lack the spatial precision needed to improve understanding of the drivers of these fluxes to inform strategies aimed at maximizing landscape carbon storage. Here, we develop an alternative and highly constrained procedure for estimating wildfire emissions at both local (10 meters) and regional (1000 kilometers) scales in boreal Fennoscandia. This approach reassessed existing knowledge of heat development within the context of modern geospatial datasets, revealing expanded applications of satellite-derived fire radiative power in classifying distinct smoldering dynamics. The findings additionally emphasized the importance of capturing fine-scale variation in climate-sensitive fuel loading when determining regional fire season impact. Comparisons revealed substantial limitations in existing boreal carbon accounting methods while providing insights into the sensitivity of fire regime characteristics to climate, management, and landscape structure.}, language = {en} } @incollection{KleinGlaweEhlertetal., author = {Klein, Marten and Glawe, Christoph and Ehlert, Mark Simon and Medina M{\´e}ndez, Juan Al{\´i} and Schmidt, Heiko}, title = {Stochastic modeling of intermittent inflow turbulence in the atmospheric boundary layer}, series = {New Results in Numerical and Experimental Fluid Mechanics XV : contributions to the 24th STAB/DGLR Symposium, Regensburg, Germany, 2024}, booktitle = {New Results in Numerical and Experimental Fluid Mechanics XV : contributions to the 24th STAB/DGLR Symposium, Regensburg, Germany, 2024}, editor = {Dillmann, Andreas and Heller, Gerd and Kr{\"a}mer, Ewald and Breitsamer, Christian and Wagner, Claus and Krenkel, Lars}, publisher = {Springer Nature Switzerland}, address = {Cham}, isbn = {978-3-032-11115-9}, issn = {1612-2909}, doi = {10.1007/978-3-032-11115-9_63}, pages = {684 -- 693}, abstract = {Wind turbine predesign is challenged by the representation of site-specific wind conditions. A good deal of that challenge lies in the modeling of the inflow turbulence in the atmospheric boundary layer (ABL). A stochastic one-dimensional turbulence (ODT) model is applied to an idealized neutrally stratified ABL and evolves the instantaneous velocity profile with full-scale resolution. The model is able to reproduce the law of the wall consistently after an initial calibration with the surface drag law. Investigating turbulent time series of the horizontal velocity components it is demonstrated that the model generates physically justified intermittency features with increasing turbulence intensity.}, language = {en} } @incollection{NaikBuryeMedinaMendezKleinetal., author = {Naik Burye, Nishidh Shailesh and Medina M{\´e}ndez, Juan Al{\´i} and Klein, Marten and Schmidt, Heiko}, title = {Revisiting near-wall modeling of fully developed turbulent flow in concentric annuli}, series = {New Results in Numerical and Experimental Fluid Mechanics XV : contributions to the 24th STAB/DGLR Symposium, Regensburg, Germany, 2024}, booktitle = {New Results in Numerical and Experimental Fluid Mechanics XV : contributions to the 24th STAB/DGLR Symposium, Regensburg, Germany, 2024}, editor = {Dillmann, Andreas and Heller, Gerd and Kr{\"a}mer, Ewald and Breitsamer, Christian and Wagner, Claus and Krenkel, Lars}, publisher = {Springer Nature Switzerland}, address = {Cham}, isbn = {978-3-032-11115-9}, issn = {1612-2909}, doi = {10.1007/978-3-032-11115-9_68}, pages = {737 -- 747}, abstract = {We report on a systematic study for Reynolds-Averaged Navier-Stokes (RANS) modeling and simulations of turbulent annular pipe flow. Several simulations were performed using the most readily-available RANS models in the open-source library OpenFOAM. A customized 1-D RANS solver was also developed for ease of analysis. The focus of the study is on the reproduction of the mean velocity profile, its maximum, and maximum radial location, as well as modeled low-order fluctuation statistics. The flow in the annular gap is characterized by a radius ratio of 0.1, and a friction Reynolds number equal to 600 that is based on a mean friction velocity. Deviations from the mean velocity profile are observed for all RANS models investigated when compared with Direct Numerical Simulation (DNS) reference data. The representation of the near-wall outer cylinder flow is better than that of the near-wall inner cylinder flow.}, language = {en} } @incollection{PolasanapalliKleinSchmidt, author = {Polasanapalli, Sai Ravi Gupta and Klein, Marten and Schmidt, Heiko}, title = {Investigating slip-velocity boundary conditions in turbulent thermal convection using a lattice Boltzmann method}, series = {New Results in Numerical and Experimental Fluid Mechanics XV : contributions to the 24th STAB/DGLR Symposium, Regensburg, Germany, 2024}, booktitle = {New Results in Numerical and Experimental Fluid Mechanics XV : contributions to the 24th STAB/DGLR Symposium, Regensburg, Germany, 2024}, editor = {Dillmann, Andreas and Heller, Gerd and Heller, Ewald and Breitsamer, Christian and Wagner, Claus and Krenkel, Lars}, publisher = {Springer Nature Switzerland}, address = {Cham}, isbn = {978-3-032-11115-9}, issn = {1612-2909}, doi = {10.1007/978-3-032-11115-9_9}, pages = {90 -- 100}, abstract = {The present study investigates the impact of various surface boundary conditions on turbulent Rayleigh-B{\´e}nard convection within a cubic cavity configuration. Simulations are conducted with a characteristic-based off-lattice Boltzmann method (LBM) solver for mildly turbulent flow of water using a direct numerical simulation (DNS) approach. The current study considers different boundary conditions such as no-slip, free-slip, and Navier-slip conditions on the walls with variations in slip length and wall-slip anisotropy. Results are evaluated through mean isotherms, streamlines, root-mean-square fluctuations, and Nusselt number. The results obtained demonstrate that the selection of wall-boundary conditions has a significant influence on the flow organization within the cavity and on the heat transfer across it.}, language = {en} } @misc{SchowarteRiedelSafdaretal., author = {Schowarte, Julia and Riedel, Ramona and Safdar, Muddasar and Helle, Sven and Fischer, Thomas and Arellano-Garcia, Harvey}, title = {Photocatalytic degradation of PFOA with porous lanthanoid perovskites nano catalyst}, series = {Chemie Ingenieur Technik}, volume = {98}, journal = {Chemie Ingenieur Technik}, number = {1-2}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1522-2640}, doi = {10.1002/cite.70027}, pages = {7 -- 17}, abstract = {Perfluorooctanoic acid (PFOA), a persistent environmental pollutant, poses significant health and ecological risks. Thisstudy investigates for the first time the photocatalytic degradation of PFOA using novel doped perovskite catalysts underpolychromatic UV-VIS irradiation with a peak emission at 366 nm. A series of nickel- and lanthanide-doped perovskites(NiMn2 O 4 , LaMnO 3 , NdMnO 3 , and their nickel-doped variants) were synthesized via a facile co-precipitation techniqueand characterized using X-ray diffraction (XRD), UV-VIS diffuse reflectance spectroscopy (UV-VIS-DRS), scanning elec-tron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDX), N2 -physisorption, and microwave plasma atomicemission spectroscopy (MP-AES). Photocatalytic experiments revealed that Ni/NdMnO3 exhibited the highest degradationefficiency toward PFOA, likely due to its small band gap energy of 1.5 eV, facilitating efficient C-C bond cleavage.}, language = {en} } @misc{SafdarSherArellanoGarcia, author = {Safdar, Muddasar and Sher, Farooq and Arellano-Garcia, Harvey}, title = {Perovskite materials for catalytic CO₂ valorisation : structural characteristics, synthesis and lattice substitutions for gas-phase reactions}, series = {Journal of environmental chemical engineering}, volume = {14}, journal = {Journal of environmental chemical engineering}, number = {2}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {2213-3437}, doi = {10.1016/j.jece.2026.121473}, pages = {1 -- 35}, abstract = {Perovskites are emerging materials that are being extensively investigated for converting greenhouse gases (GHGs) through thermochemical processes due to their versatile properties. Given their distinct physical and chemical characteristics and their unique structure (ABO3, general formula), they are desirable candidates for designing state-of-the-art catalytic systems. For instance, they can be prepared with modified oxygen vacancies, enhanced redox potential, and tailored nanoparticle formulations for use in various catalytic gas-phase CO2 conversion processes, thereby facilitating the formation of valuable, renewable raw materials such as fuels and chemicals. This comprehensive review explains the perovskite structures, including their crystallographic properties, standard synthesis methods, recent advancements in A, B, and X-site substitutions, and their effectiveness in upgrading CO2 to produce valuable commodities via different synthetic routes in gas-phase reactions via methanation, reverse water gas shift reaction (rWGS), and dry reforming of methane (DRM). To achieve a sustainable clean energy supply, application-oriented, efficient, and advanced catalytic systems that support the necessary reaction conditions and serve as the most active and selective catalysts are reported in each synthetic gas-phase production section. This study highlights current advancements and optimised research efforts to design potential catalytic materials that meet future requirements for developing efficient decarbonised energy systems. The proposed synthesis methods are the most effective techniques for conserving time and energy. They can also yield favourable morphology and allow manipulation of nanoparticle size, both of which are essential for designing innovative catalysts. To address concerns about CO2 emissions harming the environment, this study focuses on adaptable, sustainable gas-phase reaction methods with diverse industrial applications. The primary emphasis is on effective, robust perovskite-based catalysts that enable the efficient conversion of CO2 into value-added chemicals and fuels, thereby supporting low-carbon energy and chemical technologies. This review delineates explicit correlations among synthesis, structure, properties, performance, and stability by relating perovskite lattice design, defect chemistry, and compositional flexibility to catalytic activity, selectivity, and durability in heterogeneous catalytic reactions.}, language = {en} } @misc{AlipoursarbaniTidemanLopezetal., author = {Alipoursarbani, Mozhdeh and Tideman, Jeroen and L{\´o}pez, Mitzy and Abendroth, Christian}, title = {Bioaugmentation in anaerobic digesters : a systematic review}, series = {Biotechnology for biofuels and bioproducts}, volume = {19}, journal = {Biotechnology for biofuels and bioproducts}, number = {1}, publisher = {Springer Science and Business Media LLC}, address = {London}, issn = {2731-3654}, doi = {10.1186/s13068-026-02746-6}, pages = {1 -- 26}, abstract = {Bioaugmentation, the intentional introduction of specific microorganisms into anaerobic digestion (AD) systems, has shown promise in enhancing methane production and in mitigating stressful conditions, particularly in systems operating below optimal performance. This review presents a systematic literature review (SLR) of research on bioaugmentation in AD. This review identified and analysed studies meeting predefined eligibility criteria through a structured methodology involving research protocol, search, appraisal, synthesis, analysis, and reporting. A notable innovation of this review is its comprehensive critical comparison of different controls used in bioaugmentation studies, which has been inadequately addressed in previous literature. To facilitate the functional understanding, strains for bioaugmentation were grouped into the four phases of anaerobic digestion (hydrolysis, acidogenesis, acetogenesis and methanogenesis). A highly diverse set of microbes has been described for bioaugmentation, especially from the families Clostridiaceae, Pseudomonadaceae and Syntrophomonadaceae. Most works are related to hydrolysis. The few works that address acidogenesis are mostly related to dark fermentation. Several studies used methanogenic archaea as well as syntrophic acetate oxidising bacteria, despite the difficulties in culturing them. On the other hand, studies applying strains for acetogenesis were largely underrepresented. Especially works on syntrophic propionate and butyrate oxidation (SPO and SBO) were missing.}, language = {en} } @article{PolezhaevaGlasauerAmorim, author = {Polezhaeva, Olga and Glasauer, Stefan and Amorim, Michel-Ange}, title = {Prediction of uncertain visual trajectories is biased toward motion continuity}, series = {Attention, perception, \& psychophysics : AP\&P}, volume = {88}, journal = {Attention, perception, \& psychophysics : AP\&P}, number = {3}, publisher = {Springer Science and Business Media LLC}, address = {New York, NY}, issn = {1943-3921}, doi = {10.3758/s13414-025-03210-7}, pages = {1 -- 21}, abstract = {Visual motion prediction under uncertainty must rely on both statistical and kinematic properties of the stimulus. Here, we investigated how decision-making processes and psychophysical parameters are modulated during extrapolation of random trajectories with different noise characteristics (Random Walk, RDW, or Independently and Identically Distributed, IID). Noise was applied to the horizontal position of a dot moving downward with constant vertical speed and vanishing before reaching the edge of the screen. Participants had to judge whether the dot would reach the edge right or left of the center. In Experiment 1 we varied the side of the last visible horizontal position, optimal for RDW extrapolation, and the mean of all visible positions, optimal for IID, to be either on the same or on opposite sides of the screen center. Experiment 2 investigated how the final segment of an IID path impacts the trajectory extrapolation when the last visible position and the mean of the last segment are on opposite sides of the center. Experiment 3 focused on assessing the accuracy of trajectory perception amid varying levels of noise. Behavioral and DDM (Diffusion Decision Model) analyses revealed that for RDW trajectories, participants relied on the last visible position, reflecting the temporal continuity of the path and leading to faster and more accurate decision making. IID trajectories showed greater variability in prediction strategies, with participants also focusing more on the last segment, as with RDW, rather than the mean position of the whole previous trajectory. However, this strategy works well even for IID paths despite being a suboptimal solution. These findings suggest that the perceptual system favors smooth motion for visual interpretation, aiding in the prediction of uncertain visual trajectories.}, language = {en} } @techreport{SchmidtGieseHeinemannetal., author = {Schmidt, Peer and Giese, Marie and Heinemann, Robert and Nawdiyal, Amruta and Knorr, Monika and Breitkopf, Cornelia and Schneegans, Marcel Felix and Pinnau, Sebastian and Lorenz, Tommy and Mickoleit, Erik and to Baben, Moritz and Keuter, Philipp and M{\"u}ller, Michael and Sergeev, Dmitry and Ewaznezhad Fard, Darya and Morsa, Amedeo and Rhys, Dominic Jacob and Yazhenskikh, Elena}, title = {PCM-Screening-2 : Evaluierung eutektischer Gemische f{\"u}r den Einsatz als PCM : thermodynamische Modellierung und experimentelle Methoden - 2}, series = {Deutsche Forschungsberichte}, journal = {Deutsche Forschungsberichte}, doi = {10.34657/28504}, pages = {182}, abstract = {Durch den Einsatz von W{\"a}rme- und K{\"a}ltespeichern in Geb{\"a}uden, Industrieanlagen und Kraftwerken k{\"o}nnen Lastschwankungen reduziert und die Anlageneffizienz verbessert werden. Latentw{\"a}rmespeicher (PCM) erm{\"o}glichen durch Ausnutzung einer fest-fl{\"u}ssig Phasenumwandlung hohe Speicherdichten bei geringen Temperaturdifferenzen. Die Verf{\"u}gbarkeit geeigneter und kosteng{\"u}nstiger PCM's ist derzeit noch eingeschr{\"a}nkt. Ein Screening geeigneter Stoffsysteme zur Bildung multin{\"a}rer Eutektika durch thermodynamische Modellierung der Phasengleichgewichte erlaubt fundierte Vorhersagen zur Zusammensetzung eutektischer Gemische, ihren Schmelztemperaturen und -enthalpien. Auf Basis der Literatur, umfangreicher experimenteller Untersuchungen und Simulationen wurde im Projekt eine im Temperaturbereich nicht eingeschr{\"a}nkte thermochemische Datenbank f{\"u}r das komplexe Stoffsystem Na+, K+, Ca2+, Mg2+ // Cl-, NO3-, SO4_2-, CO3_2- // H2O geschaffen, die eine Auswahl neuer PCM mit optimalen thermodynamischen Eigenschaften f{\"u}r spezifische Prozessanforderungen auf Basis von in Deutschland in großen Mengen verf{\"u}gbaren, preiswerten Rohstoffen erm{\"o}glicht. Weiterhin wurde ein CalPhaD-basiertes Viskosit{\"a}tsmodell, ein Screening-Verfahren inkl. Webserver und intuitive Visualisierungsm{\"o}glichkeiten hochkomponentiger Systeme entwickelt. Mittels eines Screenings erfolgte eine Vorauswahl von potentiell als PCM geeigneten Gemischen, die umfangreich charakterisiert wurden. Auf Basis der vielversprechenden Speicherdichten und der niedrigen Materialkosten wird erwartet, dass ein oder mehrere dieser identifizierten PCMs in die Anwendung als thermische Speicher gebracht werden k{\"o}nnen.}, language = {de} } @book{SchuetzBilzMooretal., author = {Sch{\"u}tz, Raphael and Bilz, Ludwig and Moor, Irene and Kaman, Anne and Reiß, Franziska and HBSC Study Group Germany,}, title = {Einsamkeit bei Kindern und Jugendlichen in Deutschland : schulische und gesundheitsbezogene Zusammenh{\"a}nge}, publisher = {Institut f{\"u}r Sozialarbeit und Sozialp{\"a}dagogik e.V. - Kompetenznetz Einsamkeit}, address = {Berlin ; Frankfurt am Main}, isbn = {978-3-88493-301-5}, pages = {80}, abstract = {Hintergrund: Einsamkeit ist bei Kindern und Jugendlichen weit verbreitet und steht mit zahlreichen physischen, psychischen und schulischen Faktoren im Zusammenhang. F{\"u}r Deutschland liegen dazu jedoch erst wenige empirische Erkenntnisse vor. Ziel dieser Expertise ist es daher, einen {\"U}berblick des Forschungsstandes zum Thema zu liefern und mit Hilfe aktueller Daten zu untersuchen, inwieweit Einsamkeit bei Kindern und Jugendlichen mit schulischen Aspekten (Schulform, Schulzufriedenheit, schulischen Belastungen und schulischer Unterst{\"u}tzung) in Verbindung steht. Methodik: Die HBSC-Studie ist eine internationale Forschungskooperation unter Schirmherrschaft der Weltgesundheitsorganisation (WHO) und wird seit {\"u}ber 40 Jahren in einem Vierjahresrhythmus in mittlerweile {\"u}ber 50 L{\"a}ndern durchgef{\"u}hrt. Deutschland ist seit 1993 Partner des internationalen HBSC-Konsortiums und seit 2009 regelm{\"a}ßig mit einer bundesweit repr{\"a}sentativen Stichprobe an den Erhebungen beteiligt. In der aktuellen Befragung in Deutschland wurden erstmals die optionalen Fragen zum Thema Einsamkeit aufgenommen. Somit zielt die vorliegende Expertise darauf ab, aktuelle Daten zur Einsamkeit, zur Gesundheit und zu sozialen Beziehungen sowie soziodemografischen Faktoren von Sch{\"u}lerinnen und Sch{\"u}lern zu analysieren und einem breiten Publikum zur Verf{\"u}gung zu stellen. Ergebnisse: Gemessen mit der UCLA-Skala sind 11,8 \% der Sch{\"u}ler*innen als einsam einzustufen. Hierbei f{\"a}llt auf, dass M{\"a}dchen in h{\"o}herem Maße einsam sind (14,8 \%) als Jungen (7,4 \%). Eine m{\"o}gliche Erkl{\"a}rung f{\"u}r eine st{\"a}rkere Einsamkeit bei M{\"a}dchen kann eine erh{\"o}hte Bereitschaft sein, nicht erf{\"u}llte emotionale Bed{\"u}rfnisse zu kommunizieren. Schlussfolgerung: Einsamkeit in der Kindheit und Jugend spielt auch im schulischen Kontext eine wichtige Rolle. Sch{\"u}ler*innen sollten in ihren emotionalen und sozialen Kompetenzen gest{\"a}rkt werden. Lehrkr{\"a}fte k{\"o}nnen zu einem positiven Schulklima und einer sozialen Unterst{\"u}tzung der Lernenden beitragen und so Einsamkeit begegnen.}, language = {de} } @misc{KapuścikDomaradzkiObstarczyketal., author = {Kapuścik, Paulina and Domaradzki, Jarosław and Obstarczyk, Agata and Kot, Małgorzata and Flege, Jan Ingo and Keel, Emma and Gibson, Des and Wojcieszak, Damian}, title = {Correlation between electron beam evaporation conditions and sensor response of cerium oxide coatings}, series = {International journal of hydrogen energy}, volume = {220}, journal = {International journal of hydrogen energy}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0360-3199}, doi = {10.1016/j.ijhydene.2026.154101}, abstract = {Cerium oxide thin films were prepared by electron beam evaporation (EBE) under three deposition conditions: standard process, substrate heating at 200 °C, and ion beam assisted deposition (IBAD). The high optical transparency of the PVD-prepared coatings enables integration with transparent microelectronic devices, an aspect seldom explored in ceria-based gas sensors. Raman and optical analyses revealed various levels of oxygen vacancy-related defects in all films. Gas sensing measurements of the Pd/CeOx structures were correlated with their structural and electronic characteristics, including changes in Ce4+/Ce3+ ratios and band alignment during exposure to reducing gases, providing insight into the redox-driven sensing mechanism. All structures exhibit high ethanol sensitivity, while the highest response achieved for the films deposited with substrate heating and IBAD is consistent with their larger defect density and modified morphology. These findings demonstrate that tailoring EBE conditions provides an effective route to optimize CeOx thin films for improved gas sensing performance.}, language = {en} } @misc{JoshiKleinSchmidt, author = {Joshi, Abhishek and Klein, Marten and Schmidt, Heiko}, title = {Non-negligible influence of forcing mechanisms on turbulent mixing at low Reynolds numbers : a one-dimensional turbulence study}, series = {Proceedings in applied mathematics and mechanics : PAMM}, volume = {26}, journal = {Proceedings in applied mathematics and mechanics : PAMM}, number = {1}, publisher = {Wiley}, address = {Weinheim}, issn = {1617-7061}, doi = {https://doi.org/10.1002/pamm.70073}, pages = {1 -- 11}, abstract = {This study presents a numerical investigation of passive scalar mixing in homogeneous isotropic turbulence (HIT). Different volumetric forcing schemes have been used in the literature, but the side effects are rarely discussed, either because these are assumed irrelevant or because it is too costly to conduct such an analysis with a high-fidelity model. In this study, we have used One-Dimensional Turbulence (ODT) model to compare forcing schemes at low Reynolds numbers. Our analysis reveals critical flaws in the linear forcing model when applied to ODT. While both schemes exhibit spectral deviations from direct numerical simulation (DNS), the stochastic forcing scheme demonstrates superior dynamic fidelity, better capturing the turbulent energy cascade. In contrast, the linear forcing scheme suffers from a non-physical energy deficit at large scales and is approximately 10 times more computationally expensive. These artefacts directly impact scalar mixing: The stochastic scheme produces classic, multi-scale intermittency, whereas linear forcing generates extreme gradients confined only at the dissipative scales. These results demonstrate that the choice of forcing is a critical modelling decision in ODT, leading to fundamentally different model-dependent artifacts in both turbulence dynamics and scalar mixing statistics, at least in low Reynolds number regimes.}, language = {en} } @misc{DemetKepirGunozetal., author = {Demet, Seyit Mehmet and Kepir, Yusuf and Gunoz, Alper and Sepetcioglu, Harun and Bagci, Mehmet and Kara, Memduh}, title = {Erosive wear behavior of FRP composite pipes under varying impingement angles, impact velocities and flow directions}, series = {International journal of pressure vessels and piping}, volume = {219}, journal = {International journal of pressure vessels and piping}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0308-0161}, doi = {10.1016/j.ijpvp.2025.105657}, pages = {1 -- 13}, abstract = {Fiber-reinforced polymer (FRP) composite pipes are emerging as superior alternatives in sectors such as oil and gas, chemical processing, and aerospace, owing to their high strength-to-weight ratio, corrosion resistance, and design flexibility; however, their long-term durability is susceptible to erosion wear when exposed to abrasive particles. This study experimentally investigates the solid particle erosion (SPE) behavior of filament-wound carbon (CFR/EP), glass (GFR/EP), and basalt (BFR/EP) fiber-reinforced epoxy pipes by ASTM G76-18. Tests were conducted under varied impingement angles (30°, 45°, 60°, 90°), flow directions (axial and radial), and particle velocities (28 and 34 m/s), using both erosion rate (ER) and volumetric material loss to assess performance. All composites demonstrated a semi-ductile erosion response, with degradation consistently peaking at a 45° impingement angle across all test conditions. An increase in particle velocity from 28 to 34 m/s induced a near two-fold escalation in ER. Among the materials, BFR/EP exhibited the highest erosion rates, whereas CFR/EP was the most resistant. Notably, ER values were consistently higher in the axial flow direction, exceeding radial values by 20-40 \% under the most severe condition (45° at 34 m/s). Paradoxically, despite its lower ER, CFR/EP suffered greater volumetric material loss than GFR/EP, a discrepancy attributed to its significantly lower fiber volume fraction (42.4 \%) compared to GFR/EP (68.9 \%) and BFR/EP (59.7 \%). These findings emphasize that both ER and volumetric loss are critical metrics for designing thin-walled pipes, thereby providing a crucial scientific basis for material selection in environments characterized by erosive, multi-directional flow.}, language = {en} } @misc{HajhaririEberweinCampleseetal., author = {Hajhariri, Aliasghar and Eberwein, Robert and Camplese, Davide and Scarponi, Giordano Emrys and Cozzani, Valerio and Seidlitz, Holger}, title = {Cryogenic storage safety : experimental evaluation of insulation under extreme conditions}, series = {Journal of loss prevention in the process industries}, volume = {101}, journal = {Journal of loss prevention in the process industries}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0950-4230}, doi = {10.1016/j.jlp.2026.105961}, pages = {1 -- 20}, abstract = {Hydrogen is recognized as a keystone of the global energy transition, offering a clean, high-energy-density energy carrier ideal for storage and transportation. Among various storage options, liquid hydrogen (LH2) is especially advantageous for both mobile and stationary applications. However, ensuring the safety and performance of LH2 storage systems under extreme thermal conditions, such as fire exposure, remains an engineering challenge. This study introduces an experimental framework, called the Cryogenic High-Temperature Thermal Vacuum Chamber (CHTTVC), designed to investigate the thermal-hydraulic response of vacuum-insulated cryogenic tanks under fire-like conditions. The apparatus enables evaluation of insulation performance, such as perlite and multilayer insulation (MLI), with a focus on thermal degradation, heat ingress, and vacuum stability. Results indicate that combustible MLIs undergo substantial thermal degradation, leading to heat ingress rates of up to 6.5 kW and the formation of hazardous combustion by-products. In contrast, non-combustible MLIs and bulk insulation materials restrict heat ingress to approximately 3 kW while more effectively preserving vacuum integrity. Combustible MLIs also exhibit pronounced pressure increases in the evacuated section, reaching ∼6 × 104 Pa, nearly six times higher than those observed for non-combustible counterparts. Analysis of effective emissivity further reveals an enhancement in radiative heat transfer, approximately five times, for combustible MLIs following degradation. Additionally, marked thermal stratification develops under both nominal and extreme heat loads, with temperature gradients approaching 10 °C per 100 mm during sustained thermal exposure.}, language = {en} } @misc{KaoScheweAkhtaretal., author = {Kao, Ming-Chao and Schewe, Lukas Paul and Akhtar, Arub and Vlad, Alina and Keller, Thomas F. and Henkel, Karsten and Anooz, Saud Bin and Popp, Andreas and Galazka, Zbigniew and Flege, Jan Ingo and Stierle, Andreas and Vonk, Vedran}, title = {Surface termination of β-Ga₂O₃(100) as-cleaved single crystals}, series = {Applied physics letters}, volume = {128}, journal = {Applied physics letters}, number = {7}, publisher = {AIP Publishing}, address = {Melville, NY}, issn = {0003-6951}, doi = {10.1063/5.0309937}, pages = {1 -- 5}, abstract = {The surface of β-Ga₂O₃ single crystals cleaved along their (100) plane is investigated using surface x-ray diffraction and atomic force microscopy. The results show the surface to consist of a single, so-called B-termination, which means that the crystal cleaves at planes formed by edge-sharing oxygen octahedra, thereby breaking the longest and weakest Ga-O bonds. Refinement of the atomic positions results in small displacements from the bulk structure, at most approximately 0.01 {\AA}. Atomic force microscopy suggests that relatively large terraces form together with steps of half the a-axis length of approximately 0.6 nm, which means that terraces have the same atomic termination, related by the crystal symmetry. These results are important as a fundamental property of β-Ga₂O₃ when processed or used in various semiconductor applications.}, language = {en} } @misc{BalkSchroeterdaConceicaoetal., author = {Balk, Maria and Schroeter, Michael and da Concei{\c{c}}{\~a}o, Eduardo and Schneider, Nicole and Heuchel, Matthias and Pieper, Yvonne and Schwanz, Susanne and Khani, Navid and Alkhamis, Hanin and Polak-Kraśna, Katarzyna and Neffe, Axel T. and Toma, Francesca M.}, title = {Room-temperature, aqueous-based 3D printing of fully recyclable wood-like Inks from upcycled lignin}, series = {ACS sustainable chemistry \& engineering}, journal = {ACS sustainable chemistry \& engineering}, publisher = {American Chemical Society (ACS)}, address = {Washington, DC}, issn = {2168-0485}, doi = {10.1021/acssuschemeng.5c07974}, pages = {A -- L}, abstract = {Despite growing interest in sustainable additive manufacturing, most 3D printing inks rely on fossil-based polymers, require postprocessing, or lack recyclability. Here, we report a fully recyclable, water-based ink composed of 70 wt \% lignosulfonate, an abundant industrial byproduct, formulated for high-resolution 3D printing via direct ink writing at room temperature. This ink eliminates the need for chemical cross-linkers, organic solvents, or energy-intensive postcuring. Its tailored rheology, governed by reversible hydrogen bonding and hydrophobic interactions, ensures excellent shape fidelity and print stability. Mechanical properties are tunable via glycerol content, and shape stability of up to 200 °C can be achieved. The material is fully recyclable by simple rehydration without a loss in performance. This sustainable and scalable formulation bridges biomass valorization, functional prototyping, and circular manufacturing on a unified platform.}, language = {en} } @misc{ZangWuZhuetal., author = {Zang, Xuelian and Wu, Jiao and Zhu, Xiuna and Allenmark, Fredrik and M{\"u}ller, Hermann J. and Glasauer, Stefan and Shi, Zhuanghua}, title = {Duration reproduction under memory pressure : modeling the roles of visual memory set size in duration encoding and reproduction}, series = {Cognition}, volume = {271}, journal = {Cognition}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0010-0277}, doi = {10.1016/j.cognition.2026.106479}, pages = {1 -- 17}, abstract = {Duration estimates are systematically biased toward the mean of recently sampled intervals, a central-tendency effect typically attributed to the integration of sensory evidence with prior expectation. Yet the role of concurrent cognitive demands in shaping these biases has remained largely unexplored. Across five experiments, we investigated how visual working-memory set size influences duration estimation when imposed during encoding, reproduction, or both phases of a duration-reproduction task. Participants reproduced visual intervals while maintaining one, three, or five colors in memory. Increasing memory set size during encoding consistently shortened reproductions and strengthened central-tendency effect, whereas increasing set size during reproduction lengthened reproductions without altering central tendency. To account for these opposing effects, we developed a hierarchical Bayesian model incorporating attention-sharing mechanisms, which captured how increasing set size alters both bias and precision across experimental contexts. The model identifies encoding as the critical locus at which larger set sizes elevate uncertainty and enhances reliance on prior information. Our findings reveal that working-memory demands modulate duration estimation through stage-specific interference and highlight broader implications for magnitude perception under cognitive load.}, language = {en} } @misc{YangHenkeMoehlenkamp, author = {Yang, Yinghui and Henke, Markus and M{\"o}hlenkamp, Georg}, title = {Analytical investigation of short-circuit protection and post-fault operation in dual three-phase PMSMs for hybrid electric counter-rotating compressor applications}, series = {IEEE access}, volume = {14}, journal = {IEEE access}, publisher = {IEEE}, address = {Piscataway, NJ}, issn = {2169-3536}, doi = {10.1109/ACCESS.2026.3658195}, pages = {17303 -- 17323}, abstract = {The hybrid electric counter-rotating compressor (CRC) has the potential to improve power-specific fuel consumption in aircraft engines. However, due to its cascaded structure, a reduction or loss of driving power in a single compressor stage can significantly degrade the overall compressor performance. A short-circuit fault is a typical electrical failure in an electric motor that can lead to a complete loss of driving power. One innovative post-fault operation strategy is to utilize the braking capability of the failed motor at low speed to lock its corresponding compressor stage. In this way, the failed stage can function as a stator stage, still providing degraded flow-guiding capability and preventing reverse rotation. This article investigates the short-circuit protection strategy and post-fault operation of dual three-phase permanent magnet synchronous motors (DTP-PMSMs) for hybrid electric CRC applications. Analytical models are developed to characterize the post-fault behavior of the DTP-PMSM. Key design factors are defined, and their influence on post-fault performance is analyzed. Critical post-fault operating points are identified to evaluate and compare different protection strategies. Based on these results, an optimized short-circuit protection strategy is proposed for DTP-PMSMs in CRC applications. Finally, the analytical findings and the proposed strategy are validated through simulation.}, language = {en} } @incollection{Herzberg, author = {Herzberg, Simone}, title = {Kommentierung EnWG \S 13l}, series = {Energierecht : Energiewirtschaftsgesetz mit Verordnungen, EU-Richtlinien, Gesetzesmaterialien, Gesetze und Verordnungen zu Energieeinsparung und Umweltschutz sowie andere energiewirtschaftlich relevante Rechtsregelungen : Kommentar}, booktitle = {Energierecht : Energiewirtschaftsgesetz mit Verordnungen, EU-Richtlinien, Gesetzesmaterialien, Gesetze und Verordnungen zu Energieeinsparung und Umweltschutz sowie andere energiewirtschaftlich relevante Rechtsregelungen : Kommentar}, editor = {Theobald, Christian and K{\"u}hling, J{\"u}rgen}, edition = {132. Erg{\"a}nzungslieferung}, publisher = {C.H. Beck}, address = {M{\"u}nchen}, isbn = {978-3-406-36464-8}, language = {de} } @incollection{Herbzerg, author = {Herbzerg, Simone}, title = {Kommentierung EnWG \S 13k}, series = {Energierecht : Energiewirtschaftsgesetz mit Verordnungen, EU-Richtlinien, Gesetzesmaterialien, Gesetze und Verordnungen zu Energieeinsparung und Umweltschutz sowie andere energiewirtschaftlich relevante Rechtsregelungen : Kommentar}, booktitle = {Energierecht : Energiewirtschaftsgesetz mit Verordnungen, EU-Richtlinien, Gesetzesmaterialien, Gesetze und Verordnungen zu Energieeinsparung und Umweltschutz sowie andere energiewirtschaftlich relevante Rechtsregelungen : Kommentar}, editor = {Theobald, Christian and K{\"u}hling, J{\"u}rgen}, edition = {132. Erg{\"a}nzungslieferung}, publisher = {C.H. Beck}, address = {M{\"u}nchen}, isbn = {978-3-406-36464-8}, language = {de} } @misc{TsaiKleinSchmidt, author = {Tsai, Pei-Yun and Klein, Marten and Schmidt, Heiko}, title = {Numerical simulation of turbulent concentric annular pipe flow using one-dimensional turbulence (ODT) : part 1 : momentum transfer}, series = {International journal of heat and fluid flow}, volume = {119}, journal = {International journal of heat and fluid flow}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {1879-2278}, doi = {10.1016/j.ijheatfluidflow.2026.110281}, pages = {1 -- 13}, abstract = {Turbulent concentric coaxial (annular) pipe flow is numerically investigated using a stochastic one-dimensional turbulence (ODT) model as standalone tool. The dimensionally reduced ODT domain enables fully resolved numerical simulations of the flow across the radial gap between the cylindrical inner wall and the cylindrical outer wall. The model is calibrated with available reference data at low bulk Reynolds number for a wide (radius ratio ) and a moderate () gap. Making use of the model's predictive capabilities, radius ratio and Reynolds number effects are investigated, reaching bulk Reynolds numbers as large as . Despite the large values reached, spanwise wall-curvature effects remain sensible in the momentum boundary layer. The effects are more pronounced for larger wall curvature and to leading orders restricted to the convex cylindrical inner wall. Wall-curvature corrections to the law of the wall are obtained for both the viscous and Reynolds-stress dominated regions by fitting analytically derived expressions for the flow profile to the stochastic simulation data, demonstrating physical compatibility with Reynolds-averaged Navier-Stokes flow. Second-order and detailed fluctuation statistics demonstrate the permeating and nonlocal influence of spanwise wall curvature on the turbulent boundary layer. Surrogate model output in terms of conditional eddy event statistics reveals that the disparity between the near-inner and near-outer wall turbulence increases with Reynolds number for small radius ratios, suggesting that annular pipe flows require wall-curvature-aware wall models even at very large Reynolds numbers.}, language = {en} } @misc{LengyelDimovaSpinelli, author = {Lengyel, Dominik and Dimova, Lyubov and Spinelli, Jacopo}, title = {New scale model of the city of Pergamon}, series = {EVA Berlin 2023 : Elektronische Medien \& Kunst, Kultur und Historie : 27. Berliner Veranstaltung der internationalen EVA-Serie}, journal = {EVA Berlin 2023 : Elektronische Medien \& Kunst, Kultur und Historie : 27. Berliner Veranstaltung der internationalen EVA-Serie}, editor = {Bienert, Andreas and Emenlauer-Bl{\"o}mers, Eva and Lengyel, Dominik}, publisher = {Heidelberg University / arthistoricum.net}, address = {Heidelberg}, isbn = {978-3-98501-331-9}, doi = {10.11588/arthistoricum.1567.c25504}, pages = {118 -- 125}, abstract = {For the reopening of the Pergamon Museum Berlin, two new models are being prepared in the Hall of the Great Altar to replace the old models that previously stood at the foot of the stairs. The first is the model of the altar itself, which shows it in its actual spatial arrangement, i.e. not as the elements of the frieze of the giants as they are displayed on the wall of the great hall, and the second is a section of the city mountain, which, unlike before, will make it clear that almost the entire mountain was covered with buildings. In addition, it will reflect the current state of science, nominally the year 2023, and will also be executed as a tactile model. On a scale of 1:333, which may be unusual but is nevertheless customary in architecture, it will depict the hilltop around the altar, so that the altar itself will be at the centre of the model. Unlike before, the model will be placed in the room in such a way that all three altars, the life-size reconstruction, the isolated altar model and the city hill, will be in the same orientation, i.e. the lines of the buildings will be parallel to each other. Apart from the technical conversion of the surface model used for the visualisations into a volume model, the implementation as a tactile model represents the greatest creative challenge. For here, in the existing production process, milled, not printed, both the milling machine's movement capabilities and the resistance to destructive forces have to be weighed against the visual scientific-spatial expression.}, language = {en} } @misc{BienertEmenlauerBloemersLengyel, author = {Bienert, Andreas and Emenlauer-Bl{\"o}mers, Eva and Lengyel, Dominik}, title = {EVA Berlin 2023 : Elektronische Medien \& Kunst, Kultur und Historie : 27. Berliner Veranstaltung der internationalen EVA-Serie}, editor = {Bienert, Andreas and Emenlauer-Bl{\"o}mers, Eva and Lengyel, Dominik}, publisher = {Heidelberg University / arthistoricum.net}, address = {Heidelberg}, isbn = {978-3-98501-331-9}, doi = {10.11588/arthistoricum.1567}, url = {http://nbn-resolving.de/urn:nbn:de:bsz:16-ahn-artbook-1567-0}, pages = {376}, abstract = {'Game-changing'-Technologien stehen im Zentrum der Konferenz EVA-Berlin 2023. Machine-Learning, K{\"u}nstliche Intelligenz, Blockchain-, NFT-und XReality-Applikationen sind die innovativen Impulsgeber in den {\"O}kosystemen des Kulturbetriebs, der Kreativwirtschaft und in der k{\"u}nstlerischen Produktion. Haptische Komponenten eines Werks k{\"o}nnen greifbar gemacht und bildliche Darstellungen in passende Worte gefasst werden. Ein Landschaftsgem{\"a}lde gewinnt als Klanglandschaft einen neuen akustischen Erlebnishorizont, oder es wird als animierte Wetterkulisse in ein Gaming-Setting eingebunden.}, language = {mul} } @misc{MatvejevaSutLohmannRaabetal., author = {Matvejeva, Agne and Sut-Lohmann, Magdalena and Raab, Thomas and Heinrich, Martina}, title = {Assessing the possibility to cultivate industrial hemp (Cannabis sativa L.) in sandy agricultural soils of Brandenburg under water scarcity and nutrient deficiency}, series = {International journal of environmental research}, volume = {20}, journal = {International journal of environmental research}, number = {1}, publisher = {Springer Science and Business Media LLC}, address = {Cham}, issn = {1735-6865}, doi = {10.1007/s41742-025-01038-5}, pages = {1 -- 13}, abstract = {Industrial fiber hemp (Cannabis sativa L.) is an annual crop that requires minimal agricultural inputs and has a high potential to improve soil organic matter (SOM) accumulation in sandy soils, including soil fertility and yields. Hemp cultivation, due to rapid growth and high biomass production, in addition to its deep-seated and entrenched roots, has vast potential in carbon (C) sequestration and nitrogen (N) accumulation. The research aims to analyse industrial hemp species Santhica 27 feasibility for fiber cultivation and biomass production in water-scarce and nutrient-deficient sandy soils of Brandenburg. The impact of high (142 plants·m- 2) and low (71 plants·m- 2) planting densities on hemp´s morphological development and productivity, expressed as yields, is also assessed. The results showed that the dry condition with a water deficit of 168.9 mm during the growing period was the main factor significantly impeding hemp`s morphological development and fiber yields. Control treatments with the precipitation sum of 242 mm planted in a lower planting density had on average, significantly taller plants of 122 cm with greater total biomass yield of 3.74 t·ha- 1 dry weight compared to simulated water-scarce dry treatments, with the lowest plant height and total biomass of 69 cm and 1.91 t·ha- 1, respectively, when planted in high density. Although the N content in the original sandy soil was below 1 g·kg- 1, the dry environmental conditions had prompted N accumulation up to 35 N g·kg- 1 in hemp biomass, 18 N g·kg- 1 in lateral roots, and 13 N g·kg- 1 in tap roots. High calcium (Ca) content was found in hemp biomass and lateral roots, whereas potassium (K) content was greater in tap roots. The results suggest that a lower hemp planting density for hemp cultivation should be considered in a water-scarce and nutrient-deficient environment. Moreover, the elemental analysis showed that hemp parts contain considerable amounts of macronutrients, which could be of great importance to the sandy soil´s total nutrient-pool enrichment.}, language = {en} } @misc{SchueleHeinkenAdhikarietal., author = {Sch{\"u}le, Maren and Heinken, Thilo and Adhikari, Yojana and Binder, Anja and Clerc, Danica and Dobkowitz, Sophia and Francke, Till and Gerwin, Werner and Hartong, Heinrich and Jouy, Florent and Raab, Thomas and Repmann, Frank and Rohlfs, Lilly and R{\"o}nnefarth, Susanne and Ibisch, Pierre L.}, title = {Intensive post-fire management drives ecosystem degradation but does not prevent tree regeneration}, series = {Journal of applied ecology}, volume = {63}, journal = {Journal of applied ecology}, number = {1}, publisher = {Wiley}, issn = {0021-8901}, doi = {10.1111/1365-2664.70257}, pages = {1 -- 17}, abstract = {In recent years, wildfires have affected relatively large areas of managed forests in Central Europe. Often, forestry uses intensive post-fire management practices, which can have negative effects on various components of the ecosystem. Fire ecology has been largely neglected in Central Europe and strategies for appropriate management and successful reforestation of burned areas are urgently needed. We have studied the effects of different post-fire forest management treatments (including different levels of salvage logging and soil disturbances such as ploughing or raking) on soil parameters (phosphorus, nitrogen, calcium, potassium, magnesium, pH), microclimate (temperatures, vapour pressure deficit (VPD), heat and drought stress), deadwood, regrowth (biomass of tree regeneration, herb and bryophyte layer) and species richness (plants and saproxylic beetles) 3 years after wildfire in a Central European Scots pine forest (northeast Germany). Intensive forest management led to more unfavourable abiotic conditions, including stronger temperature extremes and elevated VPD. Consequently, vegetation on these sites experienced increased heat and drought stress and reduced nutrient availability. The biomass of the herb and bryophyte layer, as well as the species richness of plants and saproxylic beetles, was lower on completely salvage logged sites. Tree biomass recovered on all sites, including sites with intensive forest management. Tree regeneration in our study area was mainly driven by the recolonization of the pioneer species European aspen (Populus tremula), which can tolerate a wide range of site conditions. Synthesis and applications. We recommend avoiding intensive management on burned sites, such as complete salvage logging or ploughing, as this creates extreme site conditions that could inhibit the regeneration of more sensitive tree species and result in a long-term legacy of degradation. In addition, herb and bryophyte layers, as well as the species richness of vegetation and saproxylic beetles, which are important components of forest ecosystems, are negatively affected by intense forest management.}, language = {en} } @misc{CaviedesVoulliemePueyoHinz, author = {Caviedes-Voulli{\`e}me, Daniel and Pueyo, Yolanda and Hinz, Christoph}, title = {Topography and rainfall variability shaping dryland vegetation self-organisation : insights from a numerical modelling study}, series = {Catena : an interdisciplinary journal of soil science, hydrology, geomorphology focusing on geoecology and landscape evolution}, volume = {264}, journal = {Catena : an interdisciplinary journal of soil science, hydrology, geomorphology focusing on geoecology and landscape evolution}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0341-8162}, doi = {10.1016/j.catena.2026.109791}, pages = {1 -- 23}, abstract = {The coevolution of hydrological and vegetation dynamics in semi-arid regions often leads to vegetation self-organisation (VSO). While numerous hypotheses on the ecohydrological processes driving VSO have been explored through mathematical models, these have struggled to capture the multiscale complexity emerging from short-term surface runoff over heterogeneous topographies under variable rainfall. This limitation hinders understanding of how natural topography and rainfall variability shape long-term vegetation patterns. Previous studies suggest that intra-storm water redistribution at the hillslope scale - controlled by topography and storm intensity - plays a key role in VSO. However, these factors have rarely been considered together due to methodological constraints in numerical solvers. We argue that accurately representing these processes is essential to investigate their interactions. This study systematically examines the effects of hillslope topography and intra-annual rainfall distributions on vegetation band formation using a physically based model that couples the Zero-Inertia (Diffusive Wave) approximation of the shallow water equations with the HilleRisLambers-Rietkerk vegetation model. Idealised 30-year simulations were conducted at second-scale hydrodynamic resolution across different hillslope forms (plane, convex, concave), slopes, and rainfall regimes along a semi-arid gradient. Results show that both topography and rainfall variability strongly influence band formation through their control on water redistribution and hydrological balance. Steeper slopes enhance runoff over infiltration, reducing water availability and altering band geometry and migration. Concave hillslopes exhibit distinct runoff convergence and redistribution patterns compared to plane or convex slopes. Rainfall intermittency interacts with topography to further affect pattern stability and morphology. While both drivers shape pattern characteristics differently, their joint effects mainly influence band migration without providing a strong stabilising mechanism. These results demonstrate the feasibility of long-term, physically based ecohydrological simulations, paving the way for more comprehensive models including sediment transport and geomorphic feedbacks.}, language = {en} } @misc{JenschSviridovDubininetal., author = {Jensch, Felix and Sviridov, Alexander and Dubinin, Sergej and Karabulut, Fatih and Weiß, Sabine and H{\"a}rtel, Sebastian}, title = {Parameter optimization for low-porosity Ti-6Al-4V parts produced using accelerated PBF-LB process}, series = {Progress in additive manufacturing}, journal = {Progress in additive manufacturing}, publisher = {Springer}, address = {Cham}, issn = {2363-9520}, doi = {10.1007/s40964-025-01510-w}, pages = {1 -- 17}, abstract = {In this study, the influence of various process parameters on the porosity of Ti-6Al-4V parts fabricated via Powder Bed Fusion - Laser Based (PBF-LB) is investigated. Three different layer thicknesses (30 μm, 60 μm, and 120 μm) were analyzed to define process windows enabling a build-rate acceleration while keeping the porosity below 0.1\%. Through iterative parameter refinement, the effects of laser power, scan speed and hatch distance were examined in terms of linear energy density (LED), energy transmission density (ETD) and volumetric energy density (VED), and their influence on the formation of process-related defects such as pores. Correlations between these energy metrics and pore formation types (keyhole vs. lack-of-fusion) are discussed. The results demonstrate that process acceleration by a factor of more than 3 is possible while maintaining high quality of the components in terms of internal porosity. In addition, an accelerated method for manufacturing components using the PBF-LB process is presented, in which components are manufactured at very high build-rates but with increased porosity and then brought to the target porosity of 0.1\% using the HIP process. This has made it possible to accelerate the build-rate in PBF-LB production by a further 32\%. Accounting for the additional time required for HIP, the HIP route is faster than using the accelerated, which achieves the target porosity in as-built condition, for parts larger than 1421 cm3.}, language = {en} } @misc{SnopokDuckeMirsky, author = {Snopok, Borys A. and Ducke, Jana and Mirsky, Vladimir M.}, title = {Recognition of soft agglomerates in liquids : comparison and complementarity upon studying gold nanoparticles by tracking analysis, electron spectroscopy and microscopy}, series = {Powder technology}, volume = {468}, journal = {Powder technology}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0032-5910}, doi = {10.1016/j.powtec.2025.121649}, pages = {1 -- 11}, abstract = {A key part of nanoscience is studying how tiny particles gather together in liquids. However, detecting soft agglomerates in their main population formed by single nanoparticles is challenging, since the pairing can only be revealed through adequate identification. In this study, we investigate the effects of agglomeration 60 nm citrate-stabilized gold by optical spectroscopy, nanoparticle tracking analysis and scanning electron microscopy. Optical spectroscopy is limited in its ability to detect soft agglomerates, indicating their presence only when the plasmonic band is approximated by profiles of different types. Electron microscopy requires optimisation of sampling protocols and substrate choice, but still reflects only the dominant agglomerates presented in suspension. Nanoparticle Tracking Analysis is the only method that allows us to characterise the agglomerates in their undistorted state, displaying their greatest diversity. However, it does not provide any information on their composition and shape. We have shown that a correct workflow leads to good agreement between all three methods with respect to the ratio of the most stable agglomerates and individual nanoparticles in the suspension. A detailed discussion of the observed correlations is presented, allowing us to identify gaps in the theoretical description important for the development of targeted analytical protocols.}, language = {en} } @misc{SenguelReiterLotfietal., author = {Seng{\"u}l, Akant and Reiter, Sebastian and Lotfi, Zahra and Efremenko, Julia and Laroussi, Arwa and Corley-Wiciak, Agnieszka Anna and Ratzke, Markus and Mirsky, Vladimir M. and Wenger, Christian and Fischer, Inga Anita}, title = {Titanium nitride plasmonic nanohole arrays with polymer coating : optical properties and their humidity-induced modifications}, series = {Optical materials express}, volume = {16}, journal = {Optical materials express}, number = {2}, publisher = {Optica Publishing Group}, address = {Washington, DC}, issn = {2159-3930}, doi = {10.1364/ome.578871}, pages = {184 -- 196}, abstract = {The use of titanium nitride (TiN) for the fabrication of plasmonic structures such as nanohole arrays (NHAs) can enable their integration into optoelectronic devices on the silicon (Si) platform, for example, for the realization of on-chip chemical sensors and biosensors based on refractometric transduction. With a corresponding functionalization of the TiN nanohole arrays, these ultra-compact devices can be utilized in the development of various affinity sensors and sensor systems, such as cost-effective electronic noses for the early detection of gases in the food industry or agriculture. In this work, we focus on two types of coating for functionalization of TiN nanohole arrays: electrochemically synthesized poly-N-methylaniline and layer-by-layer deposited polyacrylic-acid/poly-allylamine (PAA/PAH). Our investigation comprises the experimental characterization of the optical properties of TiN nanhole arrays coated with polymer layers of different thicknesses as well as a comparison with simulation results. We demonstrate the potential of our setup sensing applications by measuring changes in optical properties of TiN nanohole arrays coated with PAA/PAH upon exposure to air of different humidity.}, language = {en} } @misc{RachevaBasaloLouridoGurdaletal., author = {Racheva, Miroslava and Basalo Lourido, Javier and Gurdal, Enise Ece and Herbst, Martin and Bayar, Seyhmus and Radzik, Daniela and B{\"a}hr, Elen and Zwies, Constanze and Neffe, Axel T. and Pietzsch, Markus and Lendlein, Andreas and Wischke, Christian}, title = {Tyrosinase cross-linked PEG hydrogels with DAT and DATT as artificial substrates : design, structure, and functions}, series = {Biomacromolecules}, volume = {27}, journal = {Biomacromolecules}, number = {2}, publisher = {American Chemical Society (ACS)}, address = {Washington, DC}, issn = {1525-7797}, doi = {10.1021/acs.biomac.5c01929}, pages = {1317 -- 1336}, abstract = {Enzymes such as oxidases are sustainable tools for hydrogel synthesis, but complex competing reactions have limited the mechanistic understanding and biomedical applications of these materials. Guided by molecular docking and MM-GBSA calculations, we identified two artificial substrates, desaminotyrosine (DAT) and desaminotyrosyltyrosine (DATT), that were experimentally more efficiently converted by mushroom tyrosinase (mTyr) than the natural substrate tyrosine. These substrates were used to synthesize hydrogels from DAT/DATT-functionalized star-shaped oligoethylene glycol (sOEG). Model reactions elucidated the chemical nature and functionality of the hydrogel netpoints. Material properties were systematically investigated depending on sOEG molecular weight (5, 10, 20 kDa), substrate type, and mTyr concentration. Functional mesh sizes and controlled release functions were investigated with fluorescent dextrans (4-500 kDa) and heparin. Cell culture studies with L929 fibroblasts and THP-1 monocytes suggested inertness of the material. These findings provide fundamental insight into mTyr-catalyzed hydrogel formation and support further exploration for in situ hydrogel synthesis.}, language = {en} } @misc{UdaybhanuGiriLeeetal., author = {Udaybhanu, Gadi and Giri, Binod R. and Lee, Bok Jik and Shrestha, Krishna P. and Roberts, William L and Mauss, Fabian and Reddy, V. Mahendra}, title = {Investigation of staging techniques for hydrocarbon-assisted ammonia flames in a novel dual-stage combustor}, series = {Combustion and flame}, volume = {284}, journal = {Combustion and flame}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0010-2180}, doi = {10.1016/j.combustflame.2025.114607}, pages = {1 -- 12}, abstract = {Ammonia presents itself as a high-hydrogen dense and carbon-free alternative for industrial heating, power generation, and transportation. Nevertheless, the challenges of its low flame speed and elevated NOx (nitrogen oxides) emissions pose significant challenges in combustor applications. This study investigates a novel two-stage burner employing a radial injection staging technique and explores various NOx reduction strategies for hydrocarbon-assisted ammonia flames. These strategies include premixing, fuel staging, balanced fuel staging, air staging, and sequential premixing. The focus is on LPG (liquid petroleum gas)-stabilized ammonia flames. The experiments are conducted at a constant thermal input of 20 kW (10 kW LPG + 10 kW NH3), with global equivalence ratios ranging from 0.7 to 1.4. This approach aims to provide valuable insights into the effectiveness of different staging strategies for NOx reduction in ammonia combustion. Experimental analysis is undertaken to ascertain the flame stabilization, flame temperature and its reaction zone, intermediate species and major emissions like NOx and NH3 of the burner. Staging configuration strongly influenced flame stabilization, heat release distribution, and thermal field, with downstream-shifted combustion zones lowering peak temperatures and NOx formation. Among the tested strategies, fuel staging and sequential premixing consistently achieved the greatest NOx reduction across the entire operating range compared to the premixed baseline, without compromising flame stability. Chemical kinetics analysis further reveals the dominant NO formation pathways, highlighting the key roles of HNO and NHi radicals. Additionally, this analysis helps identify dominant reaction routes and the role of intermediate species in NO formation and reduction processes. The combined experimental and kinetic insights provide a mechanistic basis for optimizing staged combustion of ammonia-hydrocarbon blends for lower NOx emissions.}, language = {en} } @techreport{HessmannWeidner, author = {Heßmann, Alexandra and Weidner, Silke}, title = {Jugendliche und Innenstadt : Dokumentation der Studienergebnisse des Masterprojektes Stadtmanagement im Sommersemester 2025}, publisher = {Institut f{\"u}r Stadtplanung, Brandenburgische Technische Universit{\"a}t Cottbus-Senftenberg}, address = {Cottbus}, issn = {2941-7406}, doi = {10.26127/BTUOpen-7246}, pages = {134}, abstract = {Die Innenstadt stellt f{\"u}r viele Jugendliche einen zentralen Lebensraum dar, in dem sie sich entfalten, soziale Kontakte kn{\"u}pfen und ihre Freizeit gestalten k{\"o}nnen. Diese R{\"a}ume sind nicht nur Zentren von Handel und Kultur, sondern auch Orte der sozialen Interaktion und Identit{\"a}tsbildung. Gleichzeitig sind Jugendliche auch mit Herausforderungen konfrontiert, wie etwa fehlender R{\"u}ckzugsorte oder einem Mangel an geeigneten (konsumfreien) Freizeitangeboten. Eingebettet in das hochschul{\"u}bergreifende Studienprojekt des Wissensnetzwerkes Stadt und Handel e.V. zum Thema „Jugend und Innenstadt" nahm das Masterprojekt Stadtmanagement im Sommersemester 2025 die Zielgruppe der Jugendlichen und deren Interaktion mit der Innenstadt in den Blick und entwarf Strategien, um eine (f{\"u}r alle Altersstufen) attraktive Innenstadt zu gestalten. Ausgehend von einer Analyse des Untersuchungsraumes Senftenberg (Brandenburg) entwickelten die Studierenden Szenarien, Leitbilder und anschließend vertiefende Zukunftsbilder f{\"u}r eine jugendgerechte Innenstadt. Im Ergebnis entstanden Ans{\"a}tze zur Neugestaltung des Bahnhofsumfeldes, Ideen zur Leerstandsbehebung einbettet in einen partizipativen Prozess, freir{\"a}umliche Impulse f{\"u}r die Reaktivierung von Brach- und Stellfl{\"a}chen sowie Vorschl{\"a}ge f{\"u}r die digital-analoge Jugendbeteiligung. Die Ergebnisse wurden abschließend beim WSH-Studienwettbewerb eingereicht. Die vorliegende Publikation dokumentiert diesen Prozess und fasst die entwickelten Ideen, Ans{\"a}tze und Vorschl{\"a}ge f{\"u}r eine k{\"u}nftige Entwicklung der Innenstadt Senftenbergs zusammen.}, language = {de} } @misc{WitulskaHendlerKasprowiczetal., author = {Witulska, Justyna and Hendler, Marta and Kasprowicz, Magdalena and Czosnyka, Marek and Jabłoński, Ireneusz and Wyłomańska, Agnieszka}, title = {Identifying the temporal distribution structure in multivariate data for time-series segmentation based on two-sample test}, series = {Information fusion}, volume = {125}, journal = {Information fusion}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {1566-2535}, doi = {10.1016/j.inffus.2025.103445}, pages = {1 -- 21}, abstract = {The research tackles the challenge of monitoring and managing a complex system by distinguishing consecutive states while observing multiple variables, especially in non-Gaussian environment. We introduce a novel methodology - MIDAST - aimed at fusion-based multivariate data segmentation and grounded in multivariate statistical tests, including the Kolmogorov-Smirnov test, a Maximum Mean Discrepancy-based test, and a kernel-based test. The performance of the method is evaluated through a comparative analysis against selected baseline techniques, specifically e-Divisive and Kernel Change Point Analysis methods, with a focus on segmentation accuracy. Additionally, the computational complexity of the proposed methodology is assessed. Computer simulation experiments, conducted across two distinct data models: (a) multivariate sub-Gaussian and (b) multivariate Student's t distributions, has been performed to evaluate the efficiency of designed methodology. Various scenarios have been examined, with different change factors considered, such as strength of the correlation between components, number of degrees of freedom (for the Student's t distribution), and the stability index (for the sub-Gaussian distribution). Finally, to depict a practical meaning of the proposed approach we successfully demonstrated invasiveness minimization of intracranial hypertension events detection by identifying the temporal distribution structure in multivariate data. MIDAST supplemented with a windowing mechanism enables screening temporal changes in one or many statistical parameters describing multivariate distribution of measured time series, uncovering single or multiple data change points marking the boundaries within which the homogeneous laws governing the evolution of the physical system and/or process apply.}, language = {en} } @misc{HigiSchroederWeidneretal., author = {Higi, Leonard and Schr{\"o}der, Tobias and Weidner, Silke and Neuroth, Heike}, title = {Taking stock of urban data governance in German small towns}, series = {Data \& policy}, volume = {8}, journal = {Data \& policy}, publisher = {Cambridge University Press}, address = {Cambridge}, issn = {2632-3249}, doi = {10.1017/dap.2025.10051}, pages = {1 -- 22}, abstract = {As data are becoming increasingly important resources for municipal administrations in the context of urban development, formalization of urban data governance (DG) is considered a prerequisite to systematic municipal data practice for the common good. Unlike for larger cities, it is unclear how common such formalized DG is in rural districts and small towns. We therefore mapped the current status quo in small municipalities in Germany as a case exemplifying the broader phenomenon. We systematically searched online for policy documents on DG in all metropolitan regions, all rural districts, and a quota sample of nearly a sixth of all German small towns. We then performed content analysis of the identified documents along predefined categories of urban development. Results show that hardly any small towns dispose of relevant policy documents. Rural districts are somewhat more active in formally defining DG. Identified policy documents tend to address mostly economic activities, social infrastructure, and demography, whereas Housing and Urban design and public space are among the least mentioned categories of urban development.}, language = {en} } @misc{SchneiderRaabRaabetal., author = {Schneider, Anna and Raab, Thomas and Raab, Alexandra and Bonhage, Alexander}, title = {Soils of former field systems in Northeastern Bavaria, Germany}, doi = {10.17632/59932w7yct.1}, abstract = {Analytical data for bulk soil samples from former field system and reference areas in forests of Northeastern Bavaria, Germany. Profile samples taken following soil horizons, transect samples taken in fixed 10 cm depth ranges.}, language = {en} } @misc{VillasmuntaHeiseBreiteretal., author = {Villasmunta, Francesco and Heise, Patrick and Breiter, Manuela and Schrader, Sigurd and Schenk, Harald and Regehly, Martin and Mai, Andreas}, title = {Monolithically integrated optical through-silicon waveguides for 3D chip-to-chip photonic interconnects}, series = {IEEE journal of selected topics in quantum electronics}, volume = {32}, journal = {IEEE journal of selected topics in quantum electronics}, number = {2: 3-D Horizons in Photonics}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, address = {New York, NY}, issn = {1077-260X}, doi = {10.1109/JSTQE.2025.3615001}, pages = {1 -- 15}, abstract = {The scaling limitations of electrical interconnects are driving the demand for efficient optical chip-to-chip links. We report the first monolithic integration of air-clad optical through-silicon waveguides in silicon, fabricated via Bosch and cryogenic deep reactive-ion etching. Rib, single-bridge, and double-bridge designs with 50 μm cores and up to 150 μm propagation lengths have been evaluated. Cryogenic-etched rib waveguides achieve the highest median transmission (66\%, -1.80 dB), compared to Bosch-etched ribs (62\%, -2.08 dB). Across all geometries, 3 dB alignment windows range from 9.3 μm to 49.2 μm, with Bosch-etched double-bridge waveguides providing the broadest tolerance. We show that geometric fidelity outweighs sidewall roughness for transmission and alignment in these large-core, multimode optical through-silicon waveguides. This technology provides a scalable, complementary metal-oxide semiconductor-compatible pathway toward 3D photonic interconnects.}, language = {en} } @misc{VermaGuentherCharlaftietal., author = {Verma, Rakhi and G{\"u}nther, Vivien and Charlafti, Evgenia and Rachow, Fabian and Giri, Binod Raj and Hemaizia, Abdelkader and Th{\´e}venin, Dominique and Flege, Jan Ingo and Mauss, Fabian}, title = {Development of detailed surface reaction mechanism for methanation process based on experiments}, series = {Proceedings in applied mathematics and mechanics : PAMM}, volume = {26}, journal = {Proceedings in applied mathematics and mechanics : PAMM}, number = {1}, publisher = {Wiley}, address = {Weinheim}, issn = {1617-7061}, doi = {10.1002/pamm.70061}, pages = {1 -- 6}, abstract = {The pressure to reduce greenhouse gas emissions is growing, which demands new and innovative technologies to produce mobile as well as stationary energy. The methanation offers a pathway to reduce greenhouse gas emissions by directly converting to . This also plays a crucial role in "power-to-gas" (P2G) technologies by providing an approach to store excess renewable energy in the form of methane in an existing natural gas infrastructure. However, methanation is a complex process due to its exothermic nature, interaction of the gas species with the catalyst, and possible catalyst degradation. Therefore, a deeper understanding is required for the methanation reaction, its different reaction pathways, and side reactions. In this work, we aim to understand the direct production of synthetic natural gas from and in a Sabatier process with the help of experiments over a Ni/ catalyst. A detailed surface reaction mechanism is developed to extend the study numerically by validating the simulation results with the experimental data. A one-dimensional model, LOGEcat, based on a single-channel catalyst model, is used for kinetic modeling. Experiments as well as simulations have been performed at various conditions, such as temperature variation and dilution to the inlet composition. We have successfully captured the experimental trends using the kinetic model developed for the conditions considered for the analysis.}, language = {en} } @misc{Bilz, author = {Bilz, Ludwig}, title = {Hatespeech hat Folgen}, series = {G+G Spezial}, volume = {2026}, journal = {G+G Spezial}, number = {1}, publisher = {AOK Medien GmbH}, address = {Remagen}, issn = {1436-1728}, pages = {16 -- 17}, language = {de} } @book{Havlin, author = {Havlin, Tetiana}, title = {The dynamics of immigrant agency : identity formation, translanguaging and purposeful actions of Post-Soviet migrants in West Germany}, publisher = {Palgrave Macmillan}, address = {Singapore}, isbn = {978-981-95-4754-8}, doi = {10.1007/978-981-95-4755-5}, pages = {XXV, 389}, abstract = {This open access book explores the dynamics of human agency within the complex context of settlement-oriented immigration through an in-depth case study of immigrants from the former Soviet Union who embarked on their journey to Germany during the 1990s and early 2000s. Employing a transnational lens and an interpretive approach, the book presents a novel empirically grounded Immigrant Agency Theory. Bridging the realms of integration and transnationalism, the Immigrant Agency Theory is a multifaceted analytical tool encompassing representational aspects (identity formations and frameworks), expressive dimensions (language use, multilingual practices, and translanguaging), and operational facets (e.g., contrasting (non)economic actions as entrepreneurship and active leisure). These elements serve as mechanisms facilitating transition, engagement, resistance, and the expression of flexible ethnic boundary-making, cultural pluralism, and the maintenance of difference through auto-exoticism as exemplified by the studied population groups. This monograph is valuable for sociologists, migration scholars, social linguists, researchers of cultural studies and Eastern Europe interested in understanding the correlation between historical events and East-West European migration processes during the transition period of the Soviet and post-Soviet space.}, language = {en} } @misc{JungWeberJungetal., author = {Jung, Ernst Michael and Weber, Marc-Andr{\´e} and Jung, Friedrich and Stroszczynski, Christian}, title = {Super-resolution contrast-enhanced ultrasound (SR-CEUS) in solid organs}, series = {R{\"o}Fo : Fortschritte auf dem Gebiet der R{\"o}ntgenstrahlen und der bildgebenden Verfahren}, volume = {90}, journal = {R{\"o}Fo : Fortschritte auf dem Gebiet der R{\"o}ntgenstrahlen und der bildgebenden Verfahren}, number = {2}, publisher = {Georg Thieme Verlag KG}, address = {Stuttgart}, issn = {1438-9029}, doi = {10.1055/a-2754-0219}, pages = {10}, abstract = {It is becoming increasingly common for multimodal radiological imaging to use contrast-enhanced ultrasound (CEUS) because of its high-resolution ultrasound techniques. CEUS has several advantages. It can be used repeatedly without affecting renal function or the thyroid gland. It is also considered to be highly accurate with regard to the diagnosis and detection of small solid liver lesions. In addition, it can be used to characterize solid lesions in other abdominal organs. With additional perfusion imaging and its (semi)quantitative analysis using wash-in and wash-out kinetics, therapies can be monitored. It is also frequently used in the assessment of solid tumors in the near field, such as thyroid tumors and lymph nodes. Super-resolution CEUS (SR-CEUS) is a novel imaging method with dynamic evaluation of microflow changes to the level of capillary structures. SR-CEUS could also open up new possibilities regarding the dynamic assessment of the micro-vascularization of solid abdominal organs and interventional procedures.}, language = {en} } @misc{AmelinaMolitorSchaeferetal., author = {Amelina, Anna and Molitor, Verena and Sch{\"a}fer, Jana and Vasilache, Andreas and Zimenkova, Tatiana}, title = {Vulnerable (im)mobilities between imperial legacies and colonial logics of war}, series = {Mobilities}, volume = {21}, journal = {Mobilities}, number = {1}, publisher = {Routledge, Taylor \& Francis}, address = {London}, issn = {1745-0101}, doi = {10.1080/17450101.2025.2605054}, pages = {1 -- 17}, abstract = {The article conceptualizes war-related mobilities and immobilities during Russia's war against Ukraine as shaped by two interconnected dynamics: cross-border solidarity and entanglement between Ukraine and Europe, and cross-border disentanglement of both from Russia's authoritarian political context. Building on mobility studies, the article argues that these frameworks gain analytical depth when combined with critical refugee and migration studies. The editorial proposes four key directions to expand mobility studies: (i) the notion of 'entangled (im)mobilities': highlighting temporal and spatial interdependencies between mobility and immobility in times of war; (ii) empire-sensitive approaches: treating post-Soviet spaces as postcolonial contexts shaped by imperial legacies; (iii) intersectional vulnerability: examining how vulnerability is produced through overlapping forms of marginalization; (iv) reflexive knowledge production: interrogating how war shapes epistemologies and research practices. Together, these perspectives enable a more nuanced understanding of war-induced (im)mobility dynamics, collective suffering, and selective immobilization. The article concludes with an overview of the contributions in the special issue.}, language = {en} } @misc{KimGerstbergerAslietal., author = {Kim, Dongsuk and Gerstberger, Ulf and Asli, Majid and H{\"o}schler, Klaus}, title = {U-Net driven semantic segmentation for detection and quantification of cracks on gas turbine blade tips}, series = {Results in engineering}, volume = {29}, journal = {Results in engineering}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {2590-1230}, doi = {10.1016/j.rineng.2025.108864}, pages = {1 -- 9}, abstract = {Crack detection and quantification on gas turbine blades is crucial for component validation during the development phase and for operational efficiency in service, as unexpected cracks can compromise blade integrity and lead to early engine removals. Gas turbine blades operate under extreme thermal and mechanical stresses, making them particularly susceptible to crack formation. At the same time deterministic predictions of crack formation are subject to high uncertainty in material data and actual loading conditions. Accurate detection and quantification of cracks, therefore, is essential for the validation and calibration of life predictions in order to prevent in-service failures, to extend component lifespan, and to reduce maintenance costs. This study introduces a U-Net based semantic segmentation model designed to automate crack detection on turbine blade tips. The model was trained on a dataset of 210 surface images with and without evidence of cracks, each divided into 128  ×  128 pixel patches. Data augmentation techniques were applied to address the class imbalance between cracked and non-cracked pixels. The U-Net architecture, optimized with a Dice loss function, achieved a validation IoU of 0.7557, along with approximately 85\% recall and precision in identifying cracked pixels. The pixel-based accuracy of the model primarily affects the quantification of cracks rather than their identification. A sliding window pipeline was implemented to extend the model's applicability, enabling segmentation of entire blade tip images for comprehensive crack localization. While the model may occasionally miss low-contrast cracks, it holds potential as a supplementary tool for manual inspection as part of the life prediction validation. By providing automated crack localization and quantification, the model can assist in analyzing crack characteristics relative to engine operating conditions.}, language = {en} } @misc{JansenKaufmanHozadetal., author = {Jansen, Nils and Kaufman, Daniel and Hozad, Ahmad Shabir and Alipoursarbani, Mozhdeh and Kochlamazashvili, Rati and Kunchulia, Ilia and Besalatpour, Aliasghar and Abendroth, Christian}, title = {From Waste to Wealth : Georgiens Bio-Fabrik f{\"u}r landwirtschaftliche Reststoffe}, series = {M{\"u}ll und Abfall : Fachzeitschrift f{\"u}r Kreislauf- und Ressourcenwirtschaft}, volume = {58}, journal = {M{\"u}ll und Abfall : Fachzeitschrift f{\"u}r Kreislauf- und Ressourcenwirtschaft}, number = {1}, publisher = {Erich Schmidt Verlag GmbH \& Co. KG}, address = {Berlin}, issn = {1863-9763}, doi = {10.37307/j.1863-9763.2026.01.06}, pages = {19 -- 24}, abstract = {Die Landwirtschaft spielt in Georgien trotz zunehmender Urbanisierung eine zentrale wirtschaftliche Rolle, insbesondere in l{\"a}ndlichen und gebirgigen Regionen, wobei 16 \% der Erwerbst{\"a}tigen rund 6,2 \% des BIP erwirtschaften. Herausforderungen wie geringe Wettbewerbsf{\"a}higkeit, unzureichende Landverteilung, fehlende moderne Technologien, geringe Abfallverwertung und Umweltbelastungen durch unsachgem{\"a}ße Entsorgung von landwirtschaftlichen R{\"u}ckst{\"a}nden erfordern innovative Ans{\"a}tze. Das Waste2Wealth- Projekt (W2W), gef{\"o}rdert vom BMUKN, zielt darauf ab, diese R{\"u}ckst{\"a}nde systematisch zu nutzen und Wissen, Technologie und Praxis miteinander zu verbinden. Hierzu werden Potenzialanalysen f{\"u}r landwirtschaftliche Reststoffe durchgef{\"u}hrt, Verwertungswege wie Biogasproduktion und Biokohleherstellung gepr{\"u}ft, und praxisnahe Instrumente wie das W2W-Whitebook, digitale Lernplattformen („Digitales LERNHAUS"), Train-of-Trainer-Module und ein mobiler Demonstrationscontainer implementiert. Das Projekt f{\"o}rdert Kapazit{\"a}tsaufbau, Stakeholder-Engagement und den Technologietransfer zwischen Deutschland und Georgien, um eine zirkul{\"a}re Bio{\"o}konomie zu etablieren, die {\"o}kologische Nachhaltigkeit, wirtschaftliche Entwicklung und die Nutzung lokaler Ressourcen verbindet. Despite increasing urbanisation, agriculture plays a central economic role in Georgia, especially in rural and mountainous regions, with 16 \% of the working population generating around 6.2 \% of GDP. Challenges such as low competitiveness, inadequate land distribution, a lack of modern technologies, low waste recycling rates and environmental pollution caused by the improper disposal of agricultural residues require innovative approaches. The Waste2Wealth (W2W) project, funded by the BMUKN, aims to systematically utilise these residues and combine knowledge, technology and practice. To this end, potential analyses for agricultural residues are being carried out, recycling methods such as biogas production and biochar production are being examined, and practical tools such as the W2W White Paper, digital learning platforms (‚Digitales LERNHAUS'), train-of-trainer modules and a mobile demonstration container are being implemented. The project promotes capacity building, stakeholder engagement and technology transfer between Germany and Georgia in order to establish a circular bioeconomy that combines ecological sustainability, economic development and the use of local resources.}, language = {de} } @incollection{Schubert, author = {Schubert, Jens M.}, title = {AEUV : Vertrag {\"u}ber die Arbeitsweise der Europ{\"a}ischen Union}, series = {Arbeitsrecht : Individualarbeitsrecht mit kollektivrechtlichen Bez{\"u}gen}, booktitle = {Arbeitsrecht : Individualarbeitsrecht mit kollektivrechtlichen Bez{\"u}gen}, editor = {D{\"a}ubler, Wolfgang and Hjort, Jens Peter and Schubert, Jens M. and Wolmerath, Martin}, edition = {6. Auflage}, publisher = {Nomos}, address = {Baden-Baden}, isbn = {978-3-7560-0192-7}, language = {de} } @misc{PaimpillilAbrahamSchopf, author = {Paimpillil Abraham, Archana and Schopf, Simone}, title = {Bioleaching as a biotechnological tool for metal recovery : from sewage to space mining}, series = {Frontiers in bioengineering and biotechnology}, volume = {13}, journal = {Frontiers in bioengineering and biotechnology}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2296-4185}, doi = {10.3389/fbioe.2025.1712157}, pages = {1 -- 23}, abstract = {Heavy metals are essential for technological and economic growth but can cause serious environmental and health problems due to their toxicity and persistence. Traditional methods for metal recovery often have high costs and can create secondary pollution. Bioleaching offers a sustainable, low-energy, and eco-friendly alternative, effectively recovering metals from low-grade ores and various waste materials. Recovering metals from secondary sources such as industrial and electronic waste reduces the need for new mining, thus conserving natural resources and supporting circular economic goals. Recently, biomining has expanded beyond Earth, showing promising results in space environments. This review discusses the current understanding of bioleaching processes, their potential for sustainable metal recovery on Earth and in space, their challenges, and future perspectives. Overcoming technical challenges, such as raw material composition, slow reaction kinetics, optimization of process parameters, and addressing safety concerns is crucial. A further increase in research focus aiming at scaling up bioleaching technology is essential, alongside addressing ethical and economic concerns related to space mining.}, language = {en} } @misc{WahlbergArpaiaChakrabortyetal., author = {Wahlberg, Eric and Arpaia, Riccardo and Chakraborty, Debmalya and Kalaboukhov, Alexei and Vignolles, David and Proust, Cyril and Black-Schaffer, Annica M. and Bauch, Thilo and Seibold, G{\"o}tz and Lombardi, Floriana}, title = {Boosting superconductivity in ultrathin YBa₂Cu₃O₇-δ films via nanofaceted substrates}, series = {Nature communications}, volume = {17}, journal = {Nature communications}, publisher = {Springer Nature}, address = {London}, issn = {2041-1723}, doi = {10.1038/s41467-025-67500-2}, pages = {1 -- 8}, abstract = {In cuprate high-temperature superconductors the doping level is fixed during synthesis, hence the charge carrier density per CuO2 plane cannot be easily tuned by conventional gating, unlike in 2D materials. Strain engineering has recently emerged as a powerful tuning knob for manipulating the properties of cuprates, in particular charge and spin orders, and their delicate interplay with superconductivity. In thin films, additional tunability can be introduced by the substrate surface morphology, particularly nanofacets formed by substrate surface reconstruction. Here we show a remarkable enhancement of the superconducting onset temperature and the upper critical magnetic field Hc,2 in nanometer-thin YBa2Cu3O7-δ films grown on a substrate with a nanofaceted surface. We theoretically show that the enhancement is driven by electronic nematicity and unidirectional charge density waves, where both elements are captured by an additional effective potential at the interface between the film and the uniquely textured substrate. Our findings show a new paradigm in which substrate engineering can effectively enhance the superconducting properties of cuprates. This approach opens an exciting frontier in the design and optimization of high-performance superconducting materials.}, language = {en} } @misc{OrnelasSkarinBezriadinaFuchsetal., author = {Ornelas-Skarin, Chance and Bezriadina, Tatiana and Fuchs, Matthias and Ghimire, Shambhu and Hastings, J. B. and Nguyen, Quynh L. and de la Pe{\~n}a, Gilberto and Sato, Takahiro and Shwartz, Sharon and Trigo, Mariano and Zhu, Diling and Popova-Gorelova, Daria and Reis, David A.}, title = {Second-order microscopic nonlinear optical susceptibility in a centrosymmetric material : application to imaging valence electron motion}, series = {Physical review X}, volume = {16}, journal = {Physical review X}, publisher = {APS}, address = {College Park, Maryland}, issn = {2160-3308}, doi = {10.1103/7vqw-jbs7}, pages = {011006-1 -- 011006-13}, abstract = {We report measurements of phase-matched nonlinear x-ray and optical mixing from single-crystal silicon using subresonant 0.95 eV laser pulses and 9.5 keV hard x-ray pulses from the Linear Coherent Light Source free-electron laser. The mixing signal appears as energy and momentum sidebands to the elastic Bragg peak. It is proportional to the magnitude squared of the relevant temporal and spatial Fourier components of the optically induced microscopic charges and currents. We measure the first- and second-order sideband to the 220 Bragg peak and find that the efficiency is maximized when the applied field is along the reciprocal lattice vector. For an optical intensity of approximately 1012  W/cm2, we measure peak efficiencies of 3 ×10-7 and 3 ×10-10 for the first- and second-order sideband, respectively (relative to the elastic Bragg peak). The first-order sideband is consistent with induced microscopic currents along the applied electric field and an isotropic response. The second-order sideband depends nontrivially on the optical field orientation and is consistent with an anisotropic response originating from induced charges along the bonds with C3⁢𝑣site symmetry. The results agree well with first-principles Floquet-Bloch calculations.tions.}, language = {en} } @misc{EmdadiYangSzyndleretal., author = {Emdadi, Aliakbar and Yang, Yitong and Szyndler, Joanna and Jensch, Felix and Ertugrul, G{\"o}khan and Tovar, Michael and H{\"a}rtel, Sebastian and Weiß, Sabine}, title = {Highly printable Fe₃Al intermetallic alloy}, series = {Metals : open access journal}, volume = {16}, journal = {Metals : open access journal}, number = {5}, publisher = {MDPI}, address = {Basel}, doi = {10.3390/met16010005}, pages = {1 -- 15}, abstract = {Intermetallic Fe₃Al-based alloys reinforced with Laves-phase precipitates are emerging as potential replacements for conventional high-alloy steels and possibly polycrystalline Ni-based superalloys in structural applications up to 700 °C. Their impressive mechanical properties, however, are offset by limited fabricability and poor machinability due to their severe brittleness. High tool wear during finish-machining, which is still required for components such as turbine blades, remains a key barrier to their broader adoption. In contrast to conventional manufacturing routes, additive manufacturing offers a viable solution by enabling near-net-shape manufacturing of difficult-to-machine iron aluminides. In the present study, laser powder bed fusion was used to produce an Fe-25Al-1.5Ta intermetallic containing strengthening Laves-phase precipitates, and the porosity, microstructure and phase composition were characterized as a function of the process parameters. The results showed that preheating the build plate to 650 °C effectively suppressed delamination and macrocrack formation, even though noticeable cracking still occurred at the high scan speed of 1000 mm/s. X-ray tomography revealed that samples fabricated with a lower scan speed (500 mm/s) and a higher layer thickness (0.1 mm) contained larger, irregularly shaped pores, whereas specimens printed at the same volumetric energy density (40 J/mm3) but with different parameter sets exhibited smaller fractions of predominantly spherical pores. All samples contained mostly elongated grains that were either oriented close to <001> relative to the build direction or largely texture-free. X-ray diffraction confirmed the presence of Fe₃Al and C14-type (Fe, Al)₂Ta Laves phase in all samples. Hardness values fell within a narrow range (378-398 HV10), with only a slight reduction in the specimen exhibiting higher porosity.}, language = {en} } @incollection{Newiak, author = {Newiak, Denis}, title = {Mit Fernsehserien gegen Verschw{\"o}rungsgl{\"a}ubigkeit : Potentiale didaktischer Intervention am Beispiel der Serie Sl{\o}born}, series = {Verschw{\"o}rungstheorien als Herausforderung in der P{\"a}dagogik und Politischen Bildung : theoretische Ans{\"a}tze und fachdidaktische Praxisperspektiven}, booktitle = {Verschw{\"o}rungstheorien als Herausforderung in der P{\"a}dagogik und Politischen Bildung : theoretische Ans{\"a}tze und fachdidaktische Praxisperspektiven}, editor = {Firsova-Eckert, Elizaveta and Schuster, Johannes and Vajen, Bastian}, publisher = {Springer VS}, address = {Wiesbaden}, isbn = {978-3-658-50019-1}, doi = {10.1007/978-3-658-50019-1}, pages = {145 -- 162}, abstract = {Der Beitrag untersucht das Potenzial von Fernsehserien, insbesondere der ZDF-neo-Serie Sl{\o}born, f{\"u}r einen p{\"a}dagogischen Umgang mit Verschw{\"o}rungstheorien. Dabei wird die gesellschaftliche Relevanz filmischer Medien betont und gezeigt, wie Serien wie Sl{\o}born, die Verschw{\"o}rungstheorien im Kontext eines Krankheitsausbruchs thematisieren, didaktische Funktionen erf{\"u}llen. Besonders wird aufgezeigt, wie solche Serien gerade bei jungen Menschen zur Auseinandersetzung mit Verschw{\"o}rungstheorien beitragen k{\"o}nnen.}, language = {de} } @misc{AbdulghaniWinkler, author = {Abdulghani, Tamer and Winkler, Herwig}, title = {Assessing the maturity of digital decarbonization in the manufacturing sector}, series = {LogForum : scientific journal of logistics}, volume = {22}, journal = {LogForum : scientific journal of logistics}, number = {1}, publisher = {Wyzsza Szkola Logistyki}, address = {Poznan}, issn = {1734-459X}, doi = {10.17270/J.LOG.001282}, pages = {15 -- 27}, abstract = {Organizations face the challenge of making strategic decisions to build a carbon-neutral and competitive future through the adoption of digital technologies. This pressure arises from rapidly evolving global market conditions and the need to achieve required emission reductions. For a successful deployment of Industry 4.0 technologies to support decarbonization, it is crucial for organizations to assess their competencies and establish a clear path forward. Digital maturity models are effective frameworks for measuring an organization's digital capabilities, and several such models have been developed. However, existing models often overlook environmental dimensions, focusing primarily on profit-driven growth. To address this gap, a Digital Decarbonization Maturity Model has been developed. This paper aims to evaluate the model's effectiveness and applicability by assessing the current state of digital decarbonization within organizations and identifying opportunities for advancement, drawing on empirical insights from a focus group.}, language = {en} } @incollection{AbdulghaniWinkler, author = {Abdulghani, Tamer and Winkler, Herwig}, title = {Artificial intelligence as a driver for the digital transformation of business models}, series = {Smart production for sustainability : proceedings of the International Conference for Production Research Asia Pacific Region 2025}, booktitle = {Smart production for sustainability : proceedings of the International Conference for Production Research Asia Pacific Region 2025}, edition = {1}, publisher = {Springer Nature}, address = {Singapore}, isbn = {978-981-95-5819-3}, issn = {2731-4170}, doi = {10.1007/978-981-95-5819-3_11}, pages = {78 -- 83}, abstract = {Digital transformation is forcing companies to adapt their existing business mod-els to new technological developments and market requirements. A significant challenge is the effective application of innovation digital technologies to enhance operational efficiency and achieve competitive advantage. This paper investigates the impact of digitalization and artificial intelligence (AI) on business models, highlighting the key success factors for transformation and addressing the chal-lenges arising throughout the process. Empirical insights from semi-structured in-terviews with relevant actors from the research and practice are presented in this paper. The Gioia method was used to analyse the interview data in order to obtain a meaningful data structure. The findings identify three primary aggregate dimen-sions that influence the transformation of business models, namely operational ef-ficiency and technological feasibility, organizational culture change, and strategic competitiveness and future security. Digital technologies have the potential to in-crease efficiency and facilitate the transformation of existing business models. However, challenges related to data management, process optimization and cost concerns are faced by companies. In addition, the digital transformation process is frequently accompanied by a cultural shift that is often accompanied by unreal-istic expectations, resistance to change, and identified skills gaps. This necessi-tates effective leadership and change management to facilitate the navigation of these obstacles. Moreover, AI can serve as a powerful competitive advantage, fa-cilitating scalable innovation. These technological, cultural and strategic factors require addressing in order to facilitate the successful integration of AI in a com-pany's transformation strategy.}, language = {en} } @misc{CunhaCordeiroSafdarSantosdaSilvaetal., author = {Cunha Cordeiro, Jos{\´e} Luiz and Safdar, Muddasar and Santos da Silva, Jefferson and Silva de Aquino, Gabrielle and Vaz dos Santos Rios, Jo{\~a}o Gabriel and Brand{\~a}o dos Santos, Maur{\´i}cio and Teixeira Cruz, Fernanda and Alves Fiuza-Junio, Raildo and Dorneanu, Bogdan and Arellano-Garcia, Harvey and Valverde Pontes, Karen and Santos Mascarenhas, Artur Jos{\´e}}, title = {Effect of support on Ni catalysts prepared by the combustion method applied in the dry reforming of biogas for production of sustainable hydrogen}, series = {International journal of hydrogen energy}, volume = {204}, journal = {International journal of hydrogen energy}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {1879-3487}, doi = {10.1016/j.ijhydene.2025.153150}, pages = {1 -- 25}, abstract = {This work investigated Ni catalysts on different supports (MgO, ZrO2, NiAl2O4, CeO2 and La2O3) prepared by the combustion method aiming for sustainable hydrogen production via simulated biogas dry reforming. The Ni/NiAl2O4 catalyst stood out among the materials due to its high Ni dispersion, low crystallite size and strong metal-support interaction, being stable for 8 h of reaction with high H2 yield and low coke deposition. The Ni/CeO2 catalyst showed good catalytic activity, but with high coke deposition (11.7 \%). The Ni/La2O3 catalyst showed an increase over the reaction time, due to the dynamic reconstruction of the surface. The Ni/MgO and Ni/ZrO2 catalysts did not present satisfactory performance when compared to the other catalysts, due to the low Ni dispersion and high crystallite size. The Ni/NiAl2O4 catalyst is very promising, due to the high production of H2, low coke deposition, thermal stability, but new studies on durability and economic viability are necessary.}, language = {en} } @misc{BraudWallanderBussetal., author = {Braud, N. and Wallander, H.J. and Buß, L. and L{\"o}fstrand, M. and Blomqvist, J. and Berschauer, C. and Rodriguez, A. Morales and Kofoed, P.M. and Resta, A. and Krisponeit, J.-O. and Schmidt, T. and Lundgren, E. and Flege, J.I. and Falta, J. and Merte, L.R.}, title = {Growth, structure, and morphology of ultra-thin tin oxide phases forming on Pt₃Sn(111) single crystals upon exposure to oxygen}, series = {Surface science}, volume = {767}, journal = {Surface science}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0039-6028}, doi = {10.1016/j.susc.2025.122927}, pages = {1 -- 8}, abstract = {Here we report an investigation of ultrathin tin oxide films on Pt3Sn(111) using low-energy electron microscopy (LEEM), microspot low-energy electron diffraction (𝜇-LEED), scanning tunneling microscopy (STM), surface X-ray diffraction (SXRD), and high-resolution X-ray photoelectron spectroscopy (XPS). Oxidation at ∼390-410 ◦C produces triangular, two-dimensional oxide islands that nucleate rapidly and exhibit self-limited lateral growth, attributed to limited Sn diffusion from the subsurface of the crystal. 𝜇-LEED shows that the initially formed (4 × 4) Sn oxide is subsequently converted to a more oxygen-rich (2 × 2𝑛) ''stripe'' phase. At 630 ◦C, enhanced Sn mobility enables a closed (4 × 4) film. The (2 × 2𝑛) phase is shown to consist of a (2 × 2) Sn lattice modulated by 1D stripe defects with spacings of 𝑛 = 4-6 atomic rows; LEED and SXRD measurements show diffraction features corresponding to this striped superstructure. The two oxides can be distinguished in XPS by their O 1s lineshapes: the (4 × 4) phase shows a clear doublet attributable to distinct O species, whereas the (2 × 2𝑛) phase exhibits a broader envelope consistent with a distribution of O coordination environments. The Sn 3d5∕2 spectra are similar for both phases, reflecting closely related Sn bonding motifs. The spectra are consistent with those of previous near-ambient-pressure XPS measurements, suggesting that the surface oxides forming under CO oxidation conditions are similar to those studied here.}, language = {en} } @incollection{ElserKopkowSchaefer, author = {Elser, Alexander and Kopkow, Christian and Sch{\"a}fer, Axel}, title = {Digitale Anwendungen zur Unterst{\"u}tzung von Versorgungsprozessen : Virtual Reality in der Versorgungsrealit{\"a}t}, series = {Adaptive Transformation des Gesundheitswesens : Impulse f{\"u}r eine zukunftsf{\"a}hige Gesundheitsversorgung}, booktitle = {Adaptive Transformation des Gesundheitswesens : Impulse f{\"u}r eine zukunftsf{\"a}hige Gesundheitsversorgung}, editor = {Petzold, Thomas and B{\"o}hland, Benjamin}, publisher = {Springer}, address = {Berlin ; Heidelberg}, isbn = {978-3-662-71627-4}, doi = {10.1007/978-3-662-71628-1_15}, pages = {207 -- 218}, abstract = {Das deutsche Gesundheitssystem sieht sich mit erheblichen strukturellen und personellen Herausforderungen konfrontiert, die durch den demografischen Wandel, den Fachkr{\"a}ftemangel und den Anstieg chronischer Erkrankungen weiter versch{\"a}rft werden. In diesem Spannungsfeld bieten digitale Innovationen die Chance, Effizienz und Versorgungsqualit{\"a}t zu verbessern. Insbesondere Virtual Reality (VR) er{\"o}ffnet durch ihre immersiven Eigenschaften neue M{\"o}glichkeiten in Diagnostik, Therapie und Ausbildung. VR erm{\"o}glicht sowohl realit{\"a}tsnahe Trainingsszenarien f{\"u}r medizinisches Personal als auch interaktive Anwendungen zur Schmerzreduktion und psychischen Stabilisierung von Patien*innen. Trotz vielversprechender Ergebnisse ist der Einsatz in der Praxis bislang begrenzt, was auf technische, organisatorische und rechtliche H{\"u}rden zur{\"u}ckzuf{\"u}hren ist. Implementierungsstudien zeigen jedoch, dass sich Barrieren durch gezielte Strategien reduzieren und die Akzeptanz f{\"o}rdern lassen. Zuk{\"u}nftige Entwicklungen, insbesondere durch K{\"u}nstliche Intelligenz und verbesserte Hardware, k{\"o}nnten VR zu einem integralen Bestandteil der Gesundheitsversorgung machen - vorausgesetzt, wissenschaftliche Evaluation, Datenschutz und Finanzierung werden nachhaltig sichergestellt.}, language = {de} } @misc{LiLokNgoetal., author = {Li, Siyang and Lok, Tow-Jie and Ngo, Shi-Han and Xue, Yaoting and Miao, Zhikun and Feng, Tao and Wang, Lei and Wong, Jie-Wei and Low, Jiatee and Lim, Kai-Yi and Woon, Min-Rou and Neffe, Axel T. and Wong, Tuck-Whye and Li, Tiefeng and Yang, Xuxu and Yang, Wei}, title = {A water-recyclable, robust, and self-healing sugar-based supramolecular network enabled by Maillard-analogous initialization of polymerization}, series = {Materials horizons}, volume = {13}, journal = {Materials horizons}, number = {1}, publisher = {Royal Society of Chemistry (RSC)}, address = {Cambridge}, issn = {2051-6347}, doi = {10.1039/D5MH01828E}, pages = {219 -- 232}, abstract = {Crosslinked functional polymers exhibit exceptional mechanical and chemical properties critical for applications spanning biomedical engineering, advanced adhesives, and self-healing materials. However, challenges in recycling, either due to irreversible crosslinks or, in the case of covalent adaptable networks (CANs), limited solid-state plasticity that typically requires catalysts, significantly restrict sustainability. To address these limitations, we present a novel water-mediated polymerization strategy inspired by the radical-generating mechanism of the Maillard reaction, utilizing maltose as both an initiator and a functional side group in a simple, catalyst-free, aqueous reaction with acrylamide (AAm). This mild, one-pot reaction occurs below 100 °C, forming adaptively functionalized supramolecular networks (AFSNs) that form supramolecular networks through hydrogen bonding and display dynamic imine linkages to the maltose side chains supporting self-healing and re-shaping. These elastomers are characterized by impressive mechanical strength (up to 5 MPa tensile strength), high elongation (up to 1000\%), notable fracture energy (36 kJ m-2), robust adhesive performance (up to 4.8 MPa), and rapid self-healing capability at room temperature. Crucially, the elastomer's supramolecular network can be fully and repeatedly dissolved and reprocessed using only water, preserving mechanical integrity without chemical degradation. This sustainable approach provides a practical solution for synthesizing and recycling high-performance crosslinked materials while eliminating environmental hazards, guiding the future development of green polymer chemistry and functional material design.}, language = {en} } @misc{BlumensteinPerezWengeretal., author = {Blumenstein, Alan and P{\´e}rez, Eduardo and Wenger, Christian and Dersch, Nadine and Kloes, Alexander and I{\~n}{\´i}guez, Benjam{\´i}n and Schwarz, Mike}, title = {Exploring variability and quantization effects in artificial neural networks using the MNIST dataset}, series = {Solid-state electronics}, volume = {232}, journal = {Solid-state electronics}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0038-1101}, doi = {10.1016/j.sse.2025.109296}, pages = {1 -- 4}, abstract = {This paper investigates the impact of introducing variability to trained neural networks and examines the effects of variability and quantization on network accuracy. The study utilizes the MNIST dataset to evaluate various Multi-Layer Perceptron configurations: a baseline model with a Single-Layer Perceptron and an extended model with multiple hidden nodes. The effects of Cycle-to-Cycle variability on network accuracy are explored by varying parameters such as the standard deviation to simulate dynamic changes in network weights. In particular, the performance differences between the Single-Layer Perceptron and the Multi-Layer Perceptron with hidden layers are analyzed, highlighting the network's robustness to stochastic perturbations. These results provide insights into the effects of quantization and network architecture on accuracy under varying levels of variability.}, language = {en} } @misc{LiAmmannHelfensteinetal., author = {Li, Yafei and Ammann, Jeanine and Helfenstein, Julian and Williams, Tim G. and Levers, Christian and Mohr, Franziska and Diogo, Vasco and Zafeiriou, Rigas and Rolo, V{\´i}ctor and Beckmann, Michael and Hernik, J{\´o}zef and Kizos, Thanasis and Herzog, Felix}, title = {The potential of variable-rate technology for sustainable intensification of European arable farming}, series = {European journal of agronomy}, volume = {172}, journal = {European journal of agronomy}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {1161-0301}, doi = {10.1016/j.eja.2025.127868}, pages = {1 -- 17}, abstract = {Sustainable intensification of agriculture calls for reducing inputs while increasing yields. Variable-rate technology (VRT) enables the application of the right amount of resources at the right time and place to meet crop requirements. VRT remains relatively underutilized in European arable farming compared to Americas and Australia. Facilitating VRT adoption and other precision agricultural technologies in European arable farming requires understanding the pressing needs of farmers and proposing location-specific solutions to their problems. To address this gap, we conducted online surveys of experts in agricultural research, service, and primary production across seven European arable farming regions. Experts were asked to estimate the current and future adoption of VRT and to assess the role of relevant factors for adopting VRT in their regions. Furthermore, we asked about the challenges of fertilization, weed/pest control, and water management. Our results show a higher current and future VRT application for fertilization compared to weed/pest control and irrigation across all regions. The biggest barriers against VRT adoption in arable farming are cost, government regulations, and technology complexity. Moreover, our results show that VRT can more efficiently address the challenges of fertilizer application and weed/pest control, but has limited potential in addressing water management challenges, which need to be tackled by crop breeding, irrigation infrastructure, and water withdrawal rights. Our findings suggest that the low adoption of VRT in Europe is related to high cost and complexity of VRT, the substitute measures of VRT, and the limitation of VRT in addressing agroecological and policy-related challenges. Sustainable intensification thus requires a portfolio of technological, social, behavioral, and policy innovations.}, language = {en} } @misc{SritongchuayBeckmannDalsgaardetal., author = {Sritongchuay, Tuanjit and Beckmann, Michael and Dalsgaard, Bo and Klein, Alexandra-Maria and Lausch, Angela and Nielsen, Anders and Osterman, Julia and Selsam, Peter and Wayo, Kanuengnit and Seppelt, Ralf}, title = {Crop diversity in the landscape boosts pollinators and yield of pollinator dependent crops across the world}, series = {Agriculture, ecosystems \& environment}, volume = {395}, journal = {Agriculture, ecosystems \& environment}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0167-8809}, doi = {10.1016/j.agee.2025.109943}, pages = {1 -- 10}, abstract = {There is a global concern about the decline of wild pollinators and the ecosystem services they provide. Although land-use change is a major threat to biodiversity, it is still poorly understood how land-use heterogeneity (or land-use structure) impacts pollinator communities and entomophilous crop production. Based on a literature review, we performed a meta-analysis to (1) assess how landscape structure, both composition and configuration, affects pollinator species richness and abundance, and (2) examine the impact of landscape structure on the production of key entomophilous crops. We extracted information on pollinator communities and crop production from 101 studies with a total of 920 site replicates distributed widely across the globe. To obtain landscape structure (total area of all crops, crop diversity, and landscape Shannon's Diversity Index) information, we sourced data from the database Map-SPAM as well as satellite images. We found that pollinator species richness increased with the number of crop species in the surrounding area. Pollinator abundance increased with the number of different crops but decreased with increasing agricultural area in the surrounding landscape. Crop production of several crops was associated with landscape heterogeneity. Notably, fruit set increased with an increasing number of crop species in neighbouring fields and decreased with increasing agricultural area, that is, when nature is substituted with agriculture in the surrounding landscape. We also found positive correlations between edge density of an area and pollinator species richness and entomophilous crop production suggesting that edge density can be used as a landscape structure indicator to assess pollinator diversity. The effects of landscape structure were more pronounced in crops with high pollinator dependence, showing stronger relationships with both pollinator diversity and crop production. These findings highlight the importance of maintaining landscape heterogeneity through crop diversity and natural habitats to support pollinators and their services, though unmeasured factors such as intensification or local management may also play a role.}, language = {en} }