TY - JOUR A1 - Magin, Melanie A1 - Kösters, Raphael A1 - Jandura, Olaf A1 - Weiß, Ralph A1 - Stark, Birgit A1 - Udris, Linards A1 - Klein, Miriam A1 - Riedl, Andreas A. T1 - Viewpoint Diversity, Balance, Deliberativeness: Assessing the Media Performance of Migration Coverage Multi-Dimensionally Based on Deliberative Democratic Theories JF - Mass Communication and Society N2 - The issue of migration is highly salient in public debates in many countries. Given this salience and the risk of political instrumentalization, often by actors from the far right, it is important for citizens to receive high-quality, differentiated information on the migration issue. This touches upon the question of media performance. While there is abundant research on the media portrayal of the migration issue, this research strand is, surprisingly, hardly linked to research on media performance. We establish this link and present an innovative, sophisticated framework for standardized content analyses on migration. It combines three standards of media performance that are key to deliberative democratic theories—viewpoint diversity, balance, and deliberativeness—and utilizes value frames and the sociological concept of idea elements to measure viewpoint diversity and balance. A first empirical test of our newly developed approach, taking Germany as a case, shows noticeable differences in the media performance of 11 outlets analyzed. This test proves the applicability of our framework, which provides a valuable starting point for future comparative research on the media performance of migration coverage across countries and over time. KW - Meinungsvielfalt KW - Deliberative Demokratie KW - Berichterstattung KW - Migration KW - Journalismus Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-51020 SN - 1520-5436 PB - Informa ER - TY - JOUR A1 - Mack, Matthias A1 - Jandura, Olaf A1 - Maurer, Marcus T1 - The effects of constructive journalism: Towards a theoretical framework JF - Journalism N2 - News media coverage mainly focuses on problems and conflicts, resulting in unintended negative consequences for democracy and journalism itself. Constructive journalism aims to address these issues by emphasizing solution-oriented reporting. However, research on its effects remains inconsistent, mainly due to vague definitions of constructive journalism and a lack of theoretical foundation. This paper first proposes a content-centered definition of constructive journalism, suggesting three dimensions: balance, matter-of-factness, and focus on solutions. Using a series of established theories, we then present a theoretical framework that models the impacts of the content dimensions in a chain of effects from emotions to cognitive and conative variables. Our approach offers a systematic basis for future research by enabling experimental analysis of operationalizable and empirically separable content dimensions and by integrating research on constructive journalism into a variety of established media effect theories. Thus, we meet the demand for a stronger theoretical focus and aim to clarify constructive journalism’s impact on audiences. KW - Journalismus KW - Berichterstattung KW - Gefühl KW - Positive Psychologie KW - Demokratie Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-58634 SN - 1464-8849 SP - 1 EP - 20 PB - SAGE Publications ER - TY - JOUR A1 - Mabrouk, Riheb A1 - Naji, Hassane A1 - Benim, Ali Cemal A1 - Dhahri, Hacen T1 - A State of the Art Review on Sensible and Latent Heat Thermal Energy Storage Processes in Porous Media: Mesoscopic Simulation JF - Applied Sciences KW - DOAJ Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40343 VL - 12 IS - 14 PB - MDPI ER - TY - CHAP A1 - Lippel, Jens A1 - Bihlmeier, Richard A1 - Stuhlsatz, André T1 - A Computer Vision Approach to Fertilizer Detection and Classification T2 - Proceedings of the 20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications KW - Maschinelles Lernen KW - Maschinelles Sehen KW - Landwirtschaft KW - Düngemittel Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-54735 SP - 563 EP - 569 PB - SCITEPRESS - Science and Technology Publications ER - TY - JOUR A1 - Lepa, Steffen A1 - Steffens, Jochen A1 - Herzog, Martin A1 - Egermann, Hauke T1 - Popular Music as Entertainment Communication: How Perceived Semantic Expression Explains Liking of Previously Unknown Music JF - Media and Communication Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-23602 VL - 8 IS - 3 SP - 191 EP - 204 PB - Cogitatio ER - TY - JOUR A1 - Langmann, Reinhard A1 - Rojas-Peña, Leandro T1 - PLCs as Industry 4.0 Components in Laboratory Applications JF - International Journal of Online Engineering KW - DOAJ Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-28089 SN - 1861-2121 VL - 12 IS - 7 PB - iJOE ER - TY - JOUR A1 - Köhler, Denis A1 - Boegel-Driessen, Josephine Alexandra A1 - Josupeit, Jan A1 - Issa-Keller, Sarah-Joelle A1 - Müller, Romina A1 - Stricker, Johannes T1 - Reliability and Validity of the Comprehensive Assessment of Psychopathic Personality—Self-Report—German Version (CAPP-SR-GV) in a German Non-Criminal Sample JF - Behavioral Sciences N2 - The structure of psychopathy is conceptualized differently in various models and no consensus has yet been reached. This study aimed to further clarify psychopathy’s content and structure by validating the German Comprehensive Assessment of Psychopathic Personality—Self-Report (CAPP-SR). For this purpose, we used a sample of n = 458 participants. The CAPP’s six factors were replicated in an exploratory factor analysis. Further confirmatory analysis revealed recommendations for optimizing the CAPP. Thus, both an optimized version and the original CAPP-SR were examined. The construct validity of both versions was then examined using a different self-rating instrument for psychopathy, the Triarchic Psychopathy Measure. The implications of the findings and further research directions are discussed. KW - CAPP KW - Psychopathie KW - Persönlichkeit KW - Comprehensive Assessment of Psychopathic Personality KW - CAPP-SR KW - psychopathy KW - TriPM KW - personality KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46018 SN - 2076-328X VL - 14 IS - 9 PB - MDPI ER - TY - JOUR A1 - Kuske, Silke A1 - Vondeberg, Carmen A1 - Minartz, Peter A1 - Vöcking, Mara A1 - Obert, Laura A1 - Hemming, Bernhard A1 - Bleck, Christian A1 - Znotka, Matti A1 - Ose, Claudia A1 - Heistermann, Peter A1 - Schmitz-Kießler, Jutta A1 - Karrenbrock, Anne A1 - Cürlis, Diana T1 - Emotional and psychological safety in the context of digital transformation in healthcare: a mixed-method strategic foresight study JF - BMJ Health & Care Informatics N2 - Perceived safety has received attention in the digital transformation of healthcare. However, the impact of perceived safety on the future of digital transformation has not been fully elucidated. To investigate perceived safety in the context of the digital transformation of healthcare while considering relevant needs, influencing factors and impacts, including crisis events, to provide recommendations for action based on a participatory, multiperspective, strategic 5-year foresight viewpoint. A strategic foresight study is conducted via a participatory mixed-methods design to understand the present related factors that are likely to be relevant to future developments in the digital transformation of healthcare.ResultsWe observed that feeling safe plays a complex role in the digital transformation of healthcare. How perceived safety is considered has and will continue to impact the individual, organisational and system levels. Regarding a potential crisis event, controversial consequences have been observed. At its core, digital (health) literacy related to equity of access and human support is one of the crucial aspects in the context of perceived safety related to the successful implementation of digital technologies in healthcare. The scenarios showed that a continuation of the current situation over the next 5 years may result in partly desirable and partly undesirable outcomes. Concrete key factors should be used in practice to support both education and healthcare quality development and research. The essence of the scenarios should serve as a starting point for research agenda setting and political decision-making in the future. However, additional research is needed to quantify the correlations among the relevant factors. KW - Digitalisierung KW - Gesundheitswesen KW - Methodenmix KW - psychische Sicherheit KW - emotionale Sicherheit KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46578 SN - 2632-1009 VL - 31 IS - 1 PB - BMJ ER - TY - RPRT A1 - Krüger, Karsten A1 - Hallik, Maarja A1 - Kalev, Leif A1 - Kostakos, Georgios A1 - Toscano, Beatriz A1 - Virchow, Fabian T1 - Conceptual Framework and Vision: Responsible Democratic Citizenship and Education for Democracy N2 - The DEMOCRAT project aims to address society's democratic deficits by maximising opportunities for mutual positive reinforcement between education and democratic participation through transformative learning for young people. DEMOCRAT builds on the premise that education plays a fundamental role in the development of democratic societies by equipping citizens with the values, knowledge and skills necessary for active participation, critical thinking and informed decision-making. DEMOCRAT was conceived in response to the plethora of ongoing crises affecting Europe and the world. These crises test the effectiveness of democratic institutions and practices, as well as the resilience of individuals and societies. A review of civic education in Europe has shown that, despite the importance given to democratic education in public discourse, it is generally not considered a major topic for education itself. The project’s core objective is to reinforce the sustainability and resilience of democracy in Europe by updating and strengthening Education for Democracy (EfD), through participatory redesign and implementation of context-specific curricula and learning methods in a framework of rapid digitalisation. The novelty of DEMOCRAT lies in the dual nature of its educational objectives: alongside exploring the conceptual or historical frameworks concerning the development of the signifier 'democracy', the project aims to operationalise it in various fields of social tension (inclusion, environmental awareness, gender issues) by encouraging civic behaviour, active participation and engagement, communication skills, critical thinking and problem solving through education for democracy. DEMOCRAT's action goes in three main directions that are the key aspects of its methodological approach: Firstly, a conceptual research concerned with definitions, concepts and historical debates on the basis of the values agreed by the EU and Agenda 2030, making sense of the structural challenges that threaten democracy. This preliminary conceptual effort identifies research gaps and includes an outline of a framework of competences for responsible democratic citizenship. It serves as a basis for the design of the practical aspect of the project, the pilot laboratories for the implementation of democracy education. Secondly, the so-called living labs where the community of education (schools, parents and students' associations, policy makers) is engaged in debate and the co-creation of transformative learning approaches in national and transnational settings. Adding to these activities the digital platform AGORA, it could become like a one-stop-shop for educational community in Europe to find inspiration. These living labs will also be outstanding sources for the evaluation of trends, continuous assessment as well as recommendations for best practices and policy making. Finally, and beyond the classroom environment, DEMOCRAT aims at intervening into the educational environment (schools, informal training) through the elaboration of a European Curriculum for EfD. This involves introducing dynamic and innovative didactic-practical units (methods, approaches or tools) into the existing curriculum or classroom practice in which students and educators actively participate in or prepare for real-world democratic processes and civic activities. KW - FBSK_Webseite KW - Politische Bildung KW - Partizipation KW - Politische Beteiligung Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-55386 PB - Zenodo ER - TY - JOUR A1 - Kretschmar, Dominik A1 - Schmieder, Matthias A1 - Niemann, Jörg T1 - Knowledge Management Concept to Compensate a High Employee Fluctuation JF - Acta Technica Napocensis. Series: Applied Mathematics, Mechanics and Engineering N2 - Knowledge is our most valuable asset! Due to the increasing fluctuation caused by demographic change, the change in society and the industry, companies are increasingly confronted with knowledge management. Therefore, companies have problems with carrying out projects effectively. There are several models, methods and tools to develop an effective concept for knowledge management. Can the process capability of projects be ensured despite high fluctuation? What appropriate methods and tools are available to manage knowledge? These and more questions are clarified in the course of this work and presented in a conceptual proposal. KW - knowledge management KW - Wissensmanagement KW - project management KW - Projektmanagement KW - collaboration KW - Kollaboration Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44818 UR - https://atna-mam.utcluj.ro/index.php/Acta/article/view/1031 VL - 61 IS - III SP - 483 EP - 488 ER - TY - CHAP A1 - Kretschmar, Dominik A1 - Niemann, Jörg T1 - Meta-Analysis of Sustainability Management in Complex Development Environments: By Integrating Requirements into Systems Engineering Approaches T2 - Proceedings of the Review of Management and Economic Engineering 9th International Management Conference "Rethinking Management in Adaptive Environments", Cluj-Napoca, Romania, 1echnical University of Cluj-Napoca, Romania,19 -21 September, 2024, Technical University of Cluj-Napoca, Romania N2 - Purpose – The complexity of developing product service systems continues to increase. At the same time, development cycles are becoming ever shorter and the requirements for safety, conformity and sustainability ever higher. In this article, a meta-analysis is carried out on the possibility of integrating sustainability aspects as requirements in a systems engineering approach and the differences are discussed. Methodology/approach - A systematic literature search of articles in ScienceDirect between 2016 and 2023 is carried out. The keywords are sustainability and system engineering incl. synonyms. In a further step, the papers are screened for their relevance to product service systems and the relevance for the purpose. Findings – To address sustainability in complex technical systems, a holistic, model-based approach is required to ensure that sustainability aspects are considered. By using frameworks and methods such as macPro² and SysLM, requirements and indicators for sustainability can be integrated into the development phase, whereas currently only the environmental dimension is usually considered via resource and energy indicators. Research limitations/implications – In order to achieve a complete picture, additional databases must be considered and research results from ongoing projects must be awaited. KW - Systemtechnik KW - Hybrides Leistungsbündel KW - Nachhaltigkeit Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-55374 UR - https://conference.rmee.org/wp-content/uploads/2024/10/Proceedings_RMEE2024_online_ISSN-3061-3892.pdf SN - 3061-3892 PB - UTPRESS ER - TY - RPRT A1 - Kostakos, Georgios A1 - Krüger, Karsten A1 - Virchow, Fabian T1 - Policy Brief: Education for Responsible Democratic Citizenship. A European Vision. Submitted Version N2 - Democracy is the cornerstone of European identity, which is complementary to national identities. In view of the challenges democracy is currently facing, at both European and national level, such as growing polarisation, increasing threats to human security and expanding digitalisation, it is important to defend and consolidate it, as a sine-qua-non element of “the European way of life”. Education for responsible democratic citizenship (RDC) or education for democracy (EfD) for short is a way of doing so. EfD strategies and tools to strengthen the democratic agency/capacity for action of citizens, the youth in particular, through transformative learning, has been the focus of the DEMOCRAT project (March 2023 to February 2026). This Policy Brief was initially drafted after the seven first months of the DEMOCRAT project but is now being finalised with the experience of two-and-a-half years of project implementation in mind. Key findings and proposed policy actions presented here include: · To safeguard democracy within the European Union, transformative education for democracy must be reinforced, also taking into account fast-moving digitalisation and fast-breached planetary boundaries. · The shift to transformative education for democracy should be based on a coherent competence framework defined in complementarity with the frameworks of citizenship competences proposed by the EU (Key Competences for Lifelong Learning) and the Council of Europe (Competences for Democratic Culture). The four key RDC competences identified by DEMOCRAT are: Solidary Participation, Deliberation, Judgement, and Democratic Resilience. · The above competence framework should be translated by EU member states and schools in different parts of Europe into a sample curriculum for responsible democratic citizenship adjusted to their education systems and societies. · Schools have to be laboratories of democratic practice on a daily basis and across subjects, not just for a few hours of civic education or education for democracy per week, and need to connect with a conducive local, regional, national, European, global and digital environment. · Students need to be aware of both their rights and responsibilities, and be guided to act on both, within their peer groups and in relation to their teachers, parents, local authorities and other relevant stakeholders. A crucial aspect of any approach to education for democracy is the competence of the teacher to create an environment in which the students can learn democracy in action and not just in words KW - FBSK_Webseite KW - Demokratische Bildung Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-60287 PB - DEMOCRAT ER - TY - JOUR A1 - Kok, Maurits A1 - Huber, Florian A1 - Kalisch, Svenja-Marei A1 - Dogterom, Marileen T1 - EB3-informed dynamics of the microtubule stabilizing cap during stalled growth JF - Biophysical Journal N2 - Microtubule stability is known to be governed by a stabilizing GTP/GDP-Pi cap, but the exact relation between growth velocity, GTP hydrolysis, and catastrophes remains unclear. We investigate the dynamics of the stabilizing cap through in vitro reconstitution of microtubule dynamics in contact with microfabricated barriers, using the plus-end binding protein GFP-EB3 as a marker for the nucleotide state of the tip. The interaction of growing microtubules with steric objects is known to slow down microtubule growth and accelerate catastrophes. We show that the lifetime distributions of stalled microtubules, as well as the corresponding lifetime distributions of freely growing microtubules, can be fully described with a simple phenomenological 1D model based on noisy microtubule growth and a single EB3-dependent hydrolysis rate. This same model is furthermore capable of explaining both the previously reported mild catastrophe dependence on microtubule growth rates and the catastrophe statistics during tubulin washout experiments. KW - Mikrotubulus Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-53164 SN - 1542-0086 VL - 124 IS - 2 SP - 227 EP - 244 PB - Elsevier ER - TY - JOUR A1 - Kim, Hyun Kang T1 - Intensity, Manifestation, and Performance in the Politics of the Real JF - International Journal of Philosophy N2 - This study attempts to explain the concept of the real in terms of intensity, manifestation, and performance, and then outlines key aspects of the politics of the real. The politics of the real is based on an interruption of identification and an abrupt end of continuity, and intensity, manifestation, and performance are the modalities of the politics of the real. First, intensity is the principle of punctualization. It denotes an anti-dialectic and anti-systematic enterprise that aims to leave behind the paradigm of continuity. It acts as the counter-principle to overcome the Hegelian dialectic and historicism. It concerns the dimension before the formation of identity and thus functions as a categorical rejection of ontological identity. Consequently, it evolves into a figure of future politics, because it denies identity and instead affirms new inventions. Second, manifestation is a matter of politics, because politics shows itself as a matter of visibility and demonstration. Ultimately, politics is the fight over manifestation. Furthermore, manifestation is the modality of existence of the collective, since a new arising collective always manifests itself in the space of images. Finally, performance is an action concept and thus opposed to the static world-model. Hence, the world appears as the place for restructuring and reshaping. Performance renders reference and the classical notion of mimesis obsolete. It undermines the distinction between original and copy and instead affirms the permanent generating of new relations and nexuses. Hence, it is the generation of freedom. Ultimately, it acts as a disappearing intermediary between virtual intensity and actual manifestation. It is an anti-metaphysical concept of possibility that differs strictly from metaphysical possibility. Thus, intensity, manifestation, and performance each correspond to the virtual, actual, and possible of the real and thus are to be denoted as modalities of the politics of the real. KW - Wirklichkeit KW - Performance (Künste) KW - Intensität KW - Ästhetik Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-54465 SN - 2330-7439 VL - 7 IS - 1 SP - 24 EP - 30 PB - Science Publishing Group ER - TY - JOUR A1 - Kampes, Céline Fabienne T1 - Tail or no Tail? Applicability of the Long Tail Theory to the German Online Media Market JF - Central European Journal of Communication N2 - The Long Tail theory serves as an explanation for market change triggered through evolving online market conditions. However, it is often referred to without empirical validation, or with inconsistent findings on its applicability. Therefore, this paper analyses the applicability of the Long Tail theory to German online media offerings as of 2014 and 2016, focusing on offerings that serve information purposes (information offerings). Based on a unique dataset of commercially oriented online media offerings (Longitudinal IntermediaPlus 2014–2016), an analysis for three Long Tail characteristics (variety increase, opposing concentration between hit and niche offerings and niche market share increase) is conducted. By additionally distinguishing between political and entertainment-oriented information offerings as boundaries of democratized online market conditions the analysis reveals that the Long Tail theory is not fully applicable to any market sample, and especially not to politically oriented offerings. KW - online information offerings KW - Long Tail theory KW - entertainment KW - politics KW - Germany Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40123 SN - 1899-5101 N1 - This research was supported by the Digital Society research program funded by the Ministry of Culture and Science of the German State of North Rhine-Westphalia. VL - 13 IS - 3 SP - 371 EP - 389 PB - University Press of Wroclaw ER - TY - JOUR A1 - Kampa, Miriam A1 - Finke, Johannes A1 - Stalder, Tobias A1 - Bucher, Leandra A1 - Klapperich, Holger A1 - Mertl, Fabian A1 - Zimmer, Christian A1 - Geiger, Christian A1 - Hassenzahl, Marc A1 - Klucken, Tim T1 - Facilitating relaxation and stress reduction in healthy participants through a virtual reality intervention: study protocol for a non-inferiority randomized controlled trial JF - Trials KW - MIREVI Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40118 SN - 1745-6215 N1 - Open Access funding enabled and organized by Projekt DEAL. This work is funded by the Bundesministerium für Bildung und Forschung (BMBF, Funding number: 16SV8068). The funding source was not involved in the study design; the collection, analysis, and interpretation of data; in the writing of the report; or the decision to submit the article for publication. (see SPIRIT item 4). VL - 23 PB - BMC ER - TY - JOUR A1 - Kamiloğlu, Roza G. A1 - Sun, Rui A1 - Bos, Patrick A1 - Huber, Florian A1 - Attema, Jisk Jakob A1 - Sauter, Disa A. T1 - Tickling induces a unique type of spontaneous laughter JF - Biology Letters N2 - Laughing is ubiquitous in human life, yet what causes it and how it sounds is highly variable. Considering this diversity, we sought to test whether there are fundamentally different kinds of laughter. Here, we sampled spontaneous laughs (n = 887) from a wide range of everyday situations (e.g. comedic performances and playful pranks). Machine learning analyses showed that laughs produced during tickling are acoustically distinct from laughs triggered by other kinds of events (verbal jokes, watching something funny or witnessing someone else’s misfortune). In a listening experiment (n = 201), participants could accurately identify tickling-induced laughter, validating that such laughter is not only acoustically but also perceptually distinct. A second listening study (n = 210) combined with acoustic analyses indicates that tickling-induced laughter involves less vocal control than laughter produced in other contexts. Together, our results reveal a unique acoustic and perceptual profile of laughter induced by tickling, an evolutionarily ancient play behaviour, distinguishing it clearly from laughter caused by other triggers. This study showcases the power of machine learning in uncovering patterns within complex behavioural phenomena, providing a window into the evolutionary significance of ticking-induced laughter. KW - Lachen KW - Kitzel KW - Akustik KW - Maschinelles Lernen KW - Spontaneität KW - Evolutionsbiologie KW - Verhalten Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-47446 SN - 1744-957X VL - 20 IS - 11 PB - The Royal Society ER - TY - CHAP A1 - Jendreiko, Christian ED - Arias, Joaquín ED - Azzolini, Damiano ED - Basu, Kinjal ED - Dahl, Veronica ED - Hecher, Markus ED - Pacenza, Francesco ED - Saribatur, Zeynep ED - Varanasi, Sarat C. T1 - Generative Logic: Teaching Prolog as Generative AI in Art and Design T2 - ICLP-WS 2024 ICLP Workshops 2024: Workshop Proceedings of the 40th International Conference on Logic Programming (ICLP-WS 2024) co-located with the 40th International Conference on Logic Programming (ICLP 2024) N2 - This paper introduces a method for teaching Prolog, especially to BA and MA students in art and design faculties. The method is called Exploring Generative Logic (EGL). The method is based on the concept of Generative Logic. Both methods are under development at the Faculty of Design, HSD, University of Applied Sciences, Düsseldorf. The basic idea of teaching Prolog with EGL is to present Prolog not as “another” programming language, but primarily as a logic AI. This perspective helps beginners gain a clear view of how Prolog works and focuses on understanding Prolog as a powerful generative AI, making it highly attractive in the domain of art and design. The author assumes that the EGL method can be easily adapted to other educational settings: education of non-programmers of all ages, including children in elementary or secondary schools, as well as students in other non-STEM curricula, to develop skills in logical thinking, digital literacy, AI literacy, and artistic literacy. The paper is divided into two parts: Part one provides an introduction to the basic ideas and objectives of the teaching method. Part two offers a description of the teaching method. KW - Generative Logic KW - Teaching Prolog KW - Logic Programming KW - Generative AI KW - Generative Design KW - Symbolic AI KW - Digital Literacy KW - AI Literacy Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46771 SN - 1613-0073 VL - 3799 SP - 1 EP - 11 PB - RWTH Aachen CY - Aachen ER - TY - CHAP A1 - Jendreiko, Christian ED - Azzolini, Damiano ED - Batsakis, Sotirios ED - Borroto Santana, Manuel Alejandro ED - Bruno, Pierangela ED - Cecchi, Laura A. ED - Fandinno, Jorge ED - Hecher, Markus ED - Maratea, Marco ED - Morales, José F. ED - Muñiz, Brais ED - Papadakis, Emmanuel ED - Robaldo, Livio ED - Serafini, Luciano ED - Lo Scudo, Fbrizio ED - Tachmazidis, Ilias ED - Tarzariol, Alice ED - Vallati, Mauro ED - Wyner, Adam T1 - The Simple Generative Logic Grammar: A tool for teaching logical thinking through visual research in art and design T2 - CEUR Workshop Proceedings: Joint Proceedings of the Workshops and Doctoral Consortium of the 41st International Conference on Logic Programming, September 9–13, 2025, Rende, Italy N2 - The Simple Generative Logic Grammar (SGLG) is a newly developed, very simply structured type of logic grammar designed for generating structured visual compositions. This paper examines its key features and explores its potential to play a central role in the educational framework Exploring Generative Logic (EGL) that I am currently developing. [1] At the heart of EGL is the idea of using the artistic creation of images composed of discrete elements to introduce students particularly in art and design to fundamental concepts in logic programming, formal grammars, and database systems in an accessible way. KW - Generative Logic KW - Logical Thinking KW - Logic Programming KW - Prolog KW - Visual Research KW - Paul Klee KW - Teaching Prolog KW - Generative Design KW - Computer Art Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-59231 SN - 1613-0073 VL - 4117 PB - RWTH Aachen ER - TY - CHAP A1 - Jandura, Olaf A1 - Weinmann, Carina ED - Ziegele, Marc ED - Kümpel, Anna Sophie ED - Dienlin, Tobias T1 - Greater Confusion in the Voter Market in Germany: Differences Between Subjective and Value-Based Categorization on the Left-Right Axis T2 - Jahrestagung der DGPuK-Fachgruppe Rezeptions- und Wirkungsforschung 2022: Tagungsband N2 - In den letzten Jahren war häufig von einem Rechtsruck in der Gesellschaft die Rede (O. Decker et al., 2016). Bevölkerungsrepräsentative Umfragedaten belegen diese These jedoch nicht. Weder die Allgemeine Bevölkerungsumfrage der Sozialwissenschaften (ALLBUS) noch der European Social Survey zeigen für die letzten Jahrzehnte signifikante Veränderungen in der Selbstpositionierung der Befragten auf der Links-Rechts-Skala. Dies wirft die Frage auf, ob es sich bei dem behaupteten gesellschaftlichen Rechtsruck um ein soziologisches Wahrnehmungsphänomen handelt, das durch die intensive öffentliche Debatte verstärkt wird, oder ob Zweifel an der Validität der politischen Selbstpositionierung auf der Links-Rechts-Skala angebracht sind. Der vorliegende Artikel befasst sich mit der letzteren Frage. Unsere Analysen ergaben, dass bei 31 % der Befragten in unserer Stichprobe eine Divergenz zwischen der subjektiven Positionierung auf der Links-Rechts-Skala und einer wertbezogenen Positionierung besteht. Wir erörtern, welche Variablen diese Divergenz erklären können und welche Konsequenzen daraus für die kommunikationswissenschaftliche Forschung gezogen werden können. N2 - In recent years, there has been frequent talk of a shift to the right in society (O. Decker et al., 2016). However, population-representative survey data do not substantiate this thesis, with neither the German General Social Survey (ALLBUS) nor the European Social Survey showing any significant changes in respondents’ self-positioning on the left-right axis over the past decades. This raises the question of whether the purported societal shift to the right is a sociological perceptual phenomenon that is magnified due to intense public debate, or whether doubts about the validity of the question on political self-positioning on the left-right scale are warranted. The present article addresses the latter issue. Our analyses revealed a divergence between subjective positioning on the left-right axis and value-based positioning for 31% of respondents in our sample. We further discuss which variables may explain this divergence and what consequences can be drawn for research in communication science. KW - left-right scale KW - subjective positioning KW - value-based positioning KW - political values KW - Links-Rechts-Skala KW - subjektive Positionierung KW - wertbasierte Positionierung KW - politische Werte KW - Politische Einstellung Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-56419 SP - 75 EP - 92 PB - SSOAR CY - Düsseldorf ER - TY - JOUR A1 - Jakab, Daniel A1 - Braun, Alexander A1 - Agnew, Cathaoir A1 - Mohandas, Reenu A1 - Deegan, Brian Michael A1 - Molloy, Dara A1 - Ward, Enda A1 - Scanlan, Anthony A1 - Eising, Ciarán T1 - SS-SFR: synthetic scenes spatial frequency response on Virtual KITTI and degraded automotive simulations for object detection JF - IET Conference Proceedings Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50080 SN - 2732-4494 VL - 2024 IS - 10 SP - 110 EP - 117 PB - Institution of Engineering and Technology (IET) ER - TY - JOUR A1 - Iqbal, Sohail A1 - Pfeiffelmann, Björn A1 - Benim, Ali Cemal A1 - Joos, Franz T1 - Numerical analysis of lifted hydrogen flame JF - MATEC Web of Conferences Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27950 SN - 2261-236X VL - 240 PB - edp sciences ER - TY - JOUR A1 - Hörner, Fernand T1 - Artistic Research between Language and Aesthetics JF - w/k - Zwischen Wissenschaft und Kunst N2 - Is artistic research more than a utopia and what exactly is artistic research? This question will be explored here in the course of three articles. The first examines the relationship between science and art, and thus also with language and aesthetics. The central question concerns, first of all, how aesthetic and language-based cognition relate to one another and what this might signify for artistic research. KW - Artistic Research KW - Künstlerische Forschung Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-49858 SN - 2628-1465 PB - Peter Tepe CY - Düsseldorf ER - TY - JOUR A1 - Hunke, Til A1 - Huber, Florian A1 - Steffens, Jochen T1 - The Evolution of Song Lyrics: An NLP-Based Analysis of Popular Music in Germany from 1954 to 2022 JF - Music & Science N2 - Music is an indispensable cultural product, reflecting changes in social, psychological, and cultural contexts. This study analyzes the historical evolution of topics and conveyed affect in popular music lyrics in Germany from 1954 to 2022, using LDA-based topic modeling and transformer-based sentiment analysis. These results show that Love & Relationships is the most referenced topic, with Dreams & Longings prominent until the mid-1960s and Society & Status rising from 2017. The sentiment analysis reveals a significant decline in positive sentiment since the mid-1960s, accompanied by increases in negative, ambiguous, and neutral sentiments. These trends may reflect broader societal changes, including shifts in cultural values, rising individualism, and increasing mental health issues. The study highlights the evolving nature of popular music and its reflection of social dynamics. KW - Popmusik KW - Maschinelles Lernen KW - Automatische Sprachanalyse Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-52618 SN - 2059-2043 VL - 8 PB - Sage Publications ER - TY - JOUR A1 - Huber, Florian A1 - Verhoeven, Stefan A1 - Meijer, Christiaan A1 - Spreeuw, Hanno A1 - Castilla, Efraín A1 - Geng, Cunliang A1 - van der Hooft, Justin J. J. A1 - Rogers, Simon A1 - Belloum, Adam A1 - Diblen, Faruk A1 - Spaaks, Jurriaan H. T1 - matchms - processing and similarity evaluation of mass spectrometry data JF - Journal of Open Source Software KW - DOAJ Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34856 SN - 2475-9066 VL - 5 IS - 52 PB - Cold Spring Harbor Laboratory ER - TY - JOUR A1 - Huber, Florian A1 - van der Burg, Sven A1 - van der Hooft, Justin J. J. A1 - Ridder, Lars T1 - MS2DeepScore: a novel deep learning similarity measure to compare tandem mass spectra JF - Journal of Cheminformatics N2 - Mass spectrometry data is one of the key sources of information in many workflows in medicine and across the life sciences. Mass fragmentation spectra are generally considered to be characteristic signatures of the chemical compound they originate from, yet the chemical structure itself usually cannot be easily deduced from the spectrum. Often, spectral similarity measures are used as a proxy for structural similarity but this approach is strongly limited by a generally poor correlation between both metrics. Here, we propose MS2DeepScore: a novel Siamese neural network to predict the structural similarity between two chemical structures solely based on their MS/MS fragmentation spectra. Using a cleaned dataset of > 100,000 mass spectra of about 15,000 unique known compounds, we trained MS2DeepScore to predict structural similarity scores for spectrum pairs with high accuracy. In addition, sampling different model varieties through Monte-Carlo Dropout is used to further improve the predictions and assess the model's prediction uncertainty. On 3600 spectra of 500 unseen compounds, MS2DeepScore is able to identify highly-reliable structural matches and to predict Tanimoto scores for pairs of molecules based on their fragment spectra with a root mean squared error of about 0.15. Furthermore, the prediction uncertainty estimate can be used to select a subset of predictions with a root mean squared error of about 0.1. Furthermore, we demonstrate that MS2DeepScore outperforms classical spectral similarity measures in retrieving chemically related compound pairs from large mass spectral datasets, thereby illustrating its potential for spectral library matching. Finally, MS2DeepScore can also be used to create chemically meaningful mass spectral embeddings that could be used to cluster large numbers of spectra. Added to the recently introduced unsupervised Spec2Vec metric, we believe that machine learning-supported mass spectral similarity measures have great potential for a range of metabolomics data processing pipelines. KW - DOAJ Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34847 UR - http://www.ncbi.nlm.nih.gov/pubmed/34715914 SN - 1758-2946 N1 - J.J.J.v.d.H. acknowledges funding from an ASDI eScience grant, ASDI.2017.030, from the Netherlands eScience Center. VL - 13 IS - 1 PB - Cold Spring Harbor Laboratory ER - TY - JOUR A1 - Huber, Florian A1 - Strehle, Dan A1 - Schnauß, Jörg A1 - Käs, Josef T1 - Formation of regularly spaced networks as a general feature of actin bundle condensation by entropic forces JF - New Journal of Physics KW - DOAJ Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34833 SN - 1367-2630 VL - 17 IS - 4 PB - IOP Publishing ER - TY - JOUR A1 - Huber, Florian A1 - Schnauß, Jörg A1 - Rönicke, S. A1 - Rauch, P. A1 - Müller, K. A1 - Fütterer, C. A1 - Käs, Josef T1 - Emergent complexity of the cytoskeleton: from single filaments to tissue JF - Advances in Physics N2 - Despite their overwhelming complexity, living cells display a high degree of internal mechanical and functional organization which can largely be attributed to the intracellular biopolymer scaffold, the cytoskeleton. Being a very complex system far from thermodynamic equilibrium, the cytoskeleton's ability to organize is at the same time challenging and fascinating. The extensive amounts of frequently interacting cellular building blocks and their inherent multifunctionality permits highly adaptive behavior and obstructs a purely reductionist approach. Nevertheless (and despite the field's relative novelty), the physics approach has already proved to be extremely successful in revealing very fundamental concepts of cytoskeleton organization and behavior. This review aims at introducing the physics of the cytoskeleton ranging from single biopolymer filaments to multicellular organisms. Throughout this wide range of phenomena, the focus is set on the intertwined nature of the different physical scales (levels of complexity) that give rise to numerous emergent properties by means of self-organization or self-assembly. Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34812 UR - http://www.ncbi.nlm.nih.gov/pubmed/24748680 SN - 1460-6976 N1 - Acknowledgment: We thank Klaus Kroy, Dan Strehle, Tobias Kießling, Matti Gralka, Harald Herrmann, Denis Wirtz, and Michael Höckel for very helpful comments, discussions, and proof reading. We further like to thank Steve Pawlizak, Thomas Fuhs, Daniel Koch, BjöStuhrmann, and Franziska Wetzel for contributing data and additional illustrations. This work was supported by the graduate school “Building with Molecules and Nano-Objects” (BuildMoNa). VL - 62 IS - 1 SP - 1 EP - 112 PB - Taylor & Francis ER - TY - JOUR A1 - Huber, Florian A1 - Ridder, Lars A1 - Verhoeven, Stefan A1 - Spaaks, Jurriaan H. A1 - Diblen, Faruk A1 - Rogers, Simon A1 - van der Hooft, Justin J. J. T1 - Spec2Vec: Improved mass spectral similarity scoring through learning of structural relationships JF - PLOS Computational Biology N2 - Spectral similarity is used as a proxy for structural similarity in many tandem mass spectrometry (MS/MS) based metabolomics analyses such as library matching and molecular networking. Although weaknesses in the relationship between spectral similarity scores and the true structural similarities have been described, little development of alternative scores has been undertaken. Here, we introduce Spec2Vec, a novel spectral similarity score inspired by a natural language processing algorithm-Word2Vec. Spec2Vec learns fragmental relationships within a large set of spectral data to derive abstract spectral embeddings that can be used to assess spectral similarities. Using data derived from GNPS MS/MS libraries including spectra for nearly 13,000 unique molecules, we show how Spec2Vec scores correlate better with structural similarity than cosine-based scores. We demonstrate the advantages of Spec2Vec in library matching and molecular networking. Spec2Vec is computationally more scalable allowing structural analogue searches in large databases within seconds. Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34687 UR - http://www.ncbi.nlm.nih.gov/pubmed/33591968 SN - 1553-7358 N1 - Data Availability Statement: The pre-processed, cleaned dataset with all positive ionization mode spectra can be downloaded from https://doi.org/10.5281/zenodo.3978118, the original raw data can be accessed from https://doi.org/10.5281/zenodo.3979010. Funding: J.J.J.v.d.H. acknowledges funding from an ASDI eScience grant, ASDI.2017.030, from the Netherlands eScience Center—NLeSC, www.esciencecenter.nl, The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. VL - 17 IS - 2 PB - Cold Spring Harbor Laboratory ER - TY - INPR A1 - Huber, Florian A1 - Pollmann, Julian T1 - Count your bits: more subtle similarity measures using larger radius count vectors N2 - Quantifying molecular similarity is a cornerstone of cheminformatics, underpinning applications from virtual screening to chemical space visualization. A wide range of molecular fingerprints and similarity metrics, most notably Tanimoto scores, are employed, but their effectiveness is highly context-dependent. In this study, we systematically evaluate several 2D fingerprint types, including circular, path-based, and distance-encoded variants, using both binary and count representations. We highlight the consequences of fingerprint choice, vector folding, and similarity metric selection, revealing critical issues such as fingerprint duplication, mass dependent score biases, and high bit collision rates. Sparse and count-based fingerprints consistently outperform fixed-size binary vectors in preserving structural distinctions. Furthermore, we introduce percentile-based normalization, propose inverse-document-frequency (IDF) weighting, and benchmark all methods against graph-based MCES similarities. Our results offer practical guidance for selecting molecular similarity measures, emphasizing the need for conscious, task-aware fingerprinting choices in large-scale chemical analyses. KW - Computational chemistry KW - Metabolomik KW - Naturstoffchemie Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-54632 PB - bioRXiv ER - TY - JOUR A1 - Himmelein, Hendrik A1 - von Berg, Markus A1 - Pörschmann, Christoph A1 - Steffens, Jochen T1 - Influence of mental effort on sound evaluations in virtual and real experimental environments JF - Frontiers in Virtual Reality N2 - Psychoacoustic research increasingly relies on virtual reality (VR) to account for the complexity of acoustic scenarios and enhance the ecological validity of laboratory findings. However, recent studies suggest that virtual environments can alter mental effort compared to real-world settings, for example, through increased perceptual complexity which in turn may affect auditory perception.This could bias experimental outcomes and compromise the ecological validity of studies conducted in VR. To investigate this, a 2 × 2 between-subjects experiment was conducted to assess whether VR environments increase mental effort and thereby influence auditory perception. A real office environment was visually reconstructed in Unity and presented to the participants via a head-mounted display (HMD) and compared to its real counterpart. Participants in both environments were asked to retrospectively rate the loudness and unpleasantness of dynamically rendered binaural office noise scenarios presented via headphones and to report perceived sound sources. Moreover, participants were divided into two groups to induce different levels of mental effort. One group was asked to listen only to the sounds, while the other performed the Stroop Color-Word interference test in parallel. The results show no significant difference in the overall induced mental effort between environment conditions. Furthermore, performing the Stroop test had an effect on loudness and unpleasantness that was mediated by subjective effort. The results also suggest that auditory jugment depend primarily on individual sound properties, regardless of the visual environment. KW - Psychoakustik KW - Virtuelle Realität KW - Lautwahrnehmung KW - Head-mounted Display Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-57985 SN - 2673-4192 VL - 6 PB - Frontiers Media SA ER - TY - CHAP A1 - Herder, Jens A1 - Neider, Christian A1 - Kinuwaki, Shinichi T1 - HDR-based lighting estimation for virtual studio (TV) environments T2 - 10th International Conference on Human and Computer N2 - Two high dynamic range HDR environments maps based on video streams from fish-eye lens cameras are used for generating virtual lights in a virtual set renderer. The task of realistic virtual light setup of scenes using captured environment maps might be eased as well as visual quality improves. We discuss the light setting problem for virtual studio tv productions which have mixed scenes of real objects, actors, virtual objects and virtual backgrounds. Benefits of hdr interactive light control are that the real light in the studio does not have to be remodeled and the artistic impression by using the light in the studio is also captured. An analysis of system requirements identifies technical challenges. We discuss the properties of a prototype system including test production. KW - HDR environment maps KW - light interaction KW - tracking KW - virtual set environments KW - Virtual (TV) Studio KW - video processing KW - FHD KW - VSVR Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-16665 SP - 111 EP - 117 CY - Düsseldorf, Aizu-Wakamatsu ER - TY - CHAP A1 - Herder, Jens A1 - Ladwig, Philipp A1 - Vermeegen, Kai A1 - Hergert, Dennis A1 - Busch, Florian A1 - Klever, Kevin A1 - Holthausen, Sebastian A1 - Ryskeldiev, Bektur T1 - Mixed Reality Experience - How to Use a Virtual (TV) Studio for Demonstration of Virtual Reality Applications T2 - GRAPP 2018 - 13th International Conference on Computer Graphics Theory and Applications N2 - The article discusses the question of “How to convey the experience in a virtual environment to third parties?” and explains the different technical implementations which can be used for live streaming and recording of a mixed reality experience. The real-world applications of our approach include education, entertainment, e- sports, tutorials, and cinematic trailers, which can benefit from our research by finding a suitable solution for their needs. We explain and outline our Mixed Reality systems as well as discuss the experience of recorded demonstrations of different VR applications, including the need for calibrated camera lens parameters based on realtime encoder values. KW - Virtual Reality KW - Mixed Reality KW - Augmented Virtuality KW - Virtual (TV) Studio KW - Camera Tracking KW - Lehre Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-15823 UR - http://vsvr.medien.hs-duesseldorf.de/publications/grapp2018-mr-openvr-abstract.html SN - 978-989-758-287-5 N1 - Zweitveröffentlichung - Originalpublikation liegt auf: http://www.scitepress.org/DigitalLibrary SP - 281 EP - 287 PB - INSTICC CY - Setubal - Portugal ER - TY - CHAP A1 - Herder, Jens A1 - Büntig, Fabian A1 - Daemen, Jeff A1 - Lang, Jaroslaw A1 - Lück, Florian A1 - Säger, Mitja A1 - Sörensen, Roluf A1 - Hermanni, Markus A1 - Vonolfen, Wolfgang T1 - Subtle Animations using Talent Tracking in a Virtual (TV) Studio T2 - 17th International Conference on Human and Computer N2 - Markerless talent tracking is widely used for interactions and animations within virtual environments. In a virtual (tv) studio talents could be overburden by interaction tasks because camera and text require extensive attention. We take a look into animations and inter- actions within a studio, which do not require any special attention or learning. We show the generation of an artificial shadow from a talent, which ease the keying process, where separation of real shadows from the background is a difficult task. We also demonstrate animations of footsteps and dust. Furthermore, capturing talents’ height can also be used to adjust the parameters of elements in the virtual environment, like the position and scaling of a virtual display. In addition to the talents, a rigid body was tracked as placeholder for graphics, easing the interaction tasks for a talent. Two test productions show the possibilities, which subtle animations offer. In the second production, the rendering was improved (shadows, filtering, normal maps, ...) and instead of using the rigid body to move an object (a flag), the animation was only controlled by the hand’s position. KW - talent tracking KW - virtual studios KW - realtime animations KW - FHD KW - Virtual (TV) Studio Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-16009 UR - http://vsvr.medien.hs-duesseldorf.de/publications/hc2014-subtle-animations-abstract.html CY - Hamamatsu/Aizu-Wakamatsu/Duesseldorf ER - TY - CHAP A1 - Herder, Jens T1 - Cooperative Tools for Teaching : an Impact of a Network Environment T2 - Annual Report of the Information Systems and Technology Center, University of Aizu, October 1997 N2 - Education at the University of Aizu is focussed upon computer science. Besides being the subject matter of many courses, however, the computer also plays a vital role in the educational process itself, both in the distribution of instructional media, and in providing students with valuable practical experience. All students have unlimited access (24-hours-a-day) to individual networked workstations, most of which are multimedia-capable (even video capture is possible in two exercise rooms). Without software and content tailored for computer-aided instruction, the hardware becomes an expensive decoration. In any case, there is a need to better educate the instructors and students in the use of the equipment. In the interest of facilitating effective, collaborative use of network-based computers in teaching, this article explores the impact that a network environment can have on such activities. First, as a general overview, and to examine the motivation for the use of a network environment in teaching, this article reviews a range of different styles of collaboration. Then the article shows what kind of tools are available for use, within the context of what has come to be called Computer-Supported Cooperative Work (CSCW). KW - CAI KW - CAT KW - computer education KW - collaborative work KW - CSCW KW - groupware KW - FHD Y1 - 1997 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-827 SP - 3 EP - 8 CY - Aizu ER - TY - CHAP A1 - Herder, Jens T1 - Sound Spatialization Framework: An Audio Toolkit for Virtual Environments T2 - First International Conference on Human and Computer, Aizu-Wakamatsu, September 1998 N2 - The Sound Spatialization Framework is a C++ toolkit and development environment for providing advanced sound spatialization for virtual reality and multimedia applications. The Sound Spatialization Framework provides many powerful display and user-interface features not found in other sound spatialization software packages. It provides facilities that go beyond simple sound source spatialization: visualization and editing of the soundscape, multiple sinks, clustering of sound sources, monitoring and controlling resource management, support for various spatialization backends, and classes for MIDI animation and handling. KW - sound spatialization KW - resource management KW - virtual environments KW - spatial sound authoring KW - user interface design KW - human-machine interfaces Y1 - 1998 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-788 CY - Aizu ER - TY - JOUR A1 - Henin, Stefano A1 - Petit, Yannick A1 - Rohwetter, Philipp A1 - Stelmaszczyk, Kamil A1 - Hao, Zuoqiang A1 - Nakaema, Walter Morinobu A1 - Vogel, Andreas A1 - Pohl, Tobias A1 - Schneider, Friedhelm A1 - Kasparian, Jérôme A1 - Weber, Konradin A1 - Wöste, Ludger A1 - Wolf, Jean-Pierre T1 - Field measurements suggest the mechanism of laser-assisted water condensation JF - Nature Communications N2 - Because of the potential impact on agriculture and other key human activities, efforts have been dedicated to the local control of precipitation. The most common approach consists of dispersing small particles of dry ice, silver iodide, or other salts in the atmosphere. Here we show, using field experiments conducted under various atmospheric conditions, that laser filaments can induce water condensation and fast droplet growth up to several μm in diameter in the atmosphere as soon as the relative humidity exceeds 70%. We propose that this effect relies mainly on photochemical formation of p.p.m.-range concentrations of hygroscopic Hno3, allowing efficient binary Hno3–H2o condensation in the laser filaments. Thermodynamic, as well as kinetic, numerical modelling based on this scenario semiquantitatively reproduces the experimental results, suggesting that particle stabilization by Hno3 has a substantial role in the laser-induced condensation. KW - Luftreinhaltung KW - Kondensation KW - Laser KW - Niederschlag Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-52439 SN - 2041-1723 VL - 2 IS - 1 PB - Springer Nature ER - TY - JOUR A1 - Haberfehlner, Helga A1 - van de Ven, Shankara S. A1 - van der Burg, Sven A. A1 - Huber, Florian A1 - Georgievska, Sonja A1 - Aleo, Ignazio A1 - Harlaar, Jaap A1 - Bonouvrié, Laura A. A1 - van der Krogt, Marjolein M. A1 - Buizer, Annemieke I. T1 - Towards automated video-based assessment of dystonia in dyskinetic cerebral palsy: A novel approach using markerless motion tracking and machine learning JF - Frontiers in Robotics and AI Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40592 SN - 2296-9144 VL - 10 PB - Frontiers ER - TY - CHAP A1 - Grote-Ramm, Wolfgang A1 - Schönig, Felix A1 - Schwarzbözl, Peter A1 - Drexelius, Maximilian A1 - Maldonado Quinto, Daniel A1 - Binder, Matthias T1 - Model Predictive Control and Service Life Monitoring for Molten Salt Solar Power Towers T2 - 29th SolarPACES Conference, Sydney N2 - A two-component system for control and monitoring of solar power towers with molten salt receivers is proposed. The control component consists of a model predictive control applica-tion (MPC) with a flexible objective function and on-line tunable weights, which runs on a In-dustrial PC and uses a reduced order dynamic model of the receiver’s thermal and flow dy-namics. The second component consists of a service-life monitoring unit, which estimates the service-life consumption of the absorber tubes depending on the current mode of operation based on thermal stresses and creep fatigue in the high temperature regime. The calculation of stresses is done based on a detailed finite element study, in which a digital twin of the re-ceiver was developed. By parallelising the model solver, the estimation of service-life con-sumption became capable of real-time operation. The system has been implemented at a test facility in Jülich, Germany, and awaits field experiments. In this paper, the modeling and archi-tecture are presented along simulation results, which were validated on a hardware-in-the-loop test bench. The MPC showed good disturbance rejection while respecting process variable constraints during the simulation studies. KW - Solar Power Tower KW - Molten Salt KW - Model Predictive Control KW - Dynamic Modelling KW - Service-life Monitoring Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-43233 PB - SolarPACES ER - TY - JOUR A1 - Greuel, Marc A1 - Watermann, Clara Maria A1 - Lohmann, Heiko A1 - Kaluza, Stefan A1 - Apfel, Ulf-Peter A1 - Zeidler-Fandrich, Barbara T1 - The conversion of ethanol over 3d-metal saponite-like smectites JF - Materials Advances N2 - The replacement of fossil fuel processes with renewable pathways is critical to circumvent climate change and environmental risks. A process of interest is the production of 1,3-butadiene (BD), which is primarily derived as a by-product of naphtha steam cracking. A sustainable alternative path involves converting renewable ethanol to BD via the Lebedev process, which requires a catalyst with balanced redox, acidic, and basic sites. Due to the necessity of a multifunctional catalyst, existing materials for this reaction are either comprised of catalyst mixtures or supported catalysts. In this study, we introduce a bulk material, saponite, containing M–O–Si sites, which combine required catalytic sites for the ethanol to BD (ETB) reaction in one material. The product composition in ethanol conversion were strongly dependent on the type of 3d-metal used, while no conclusive correlation between surface properties, conversion, and product composition was observed. Herein, using V-Sap*, we achieved an ethene productivity of 448 gethene kgcat−1 h−1 (74%) at 573.15 K. High acetaldehyde productivity was maintained with Cu-Sap* (466 gAcA kgcat−1 h−1, 49%) at 573.15 K and Zn-Sap (528 gAcA kgcat−1 h−1, 55%) at 723.15 K. Mg-Sap primarily produced ethene but also yielded 10 gBD kgcat−1 h−1 BD at 723.15 K. Higher BD outputs were observed with Ni-Sap (31 gBD kgcat−1 h−1 at 523.15 K) and Mn-Sap* (51 gBD kgcat−1 h−1 at 723.15 K). This underscores the potential of saponite-based materials for flexible product outputs in ethanol conversion, influenced by the choice of integrated 3d-metal. KW - Butadien KW - Katalyse KW - Material Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-52973 SN - 2633-5409 IS - 6 SP - 2885 EP - 2898 PB - Royal Society of Chemistry ER - TY - RPRT A1 - Greil, Stefan A1 - Schwarz, Christian A1 - Stein, Stefan T1 - Fairness and the Arm's Length Principle in a Digital Economy N2 - The OECD Base Erosion Profit Shifting (BEPS) Initiative as well as the current fairness oriented public discussion regarding the taxation of digital business models highlight the importance and complexity of the arm's length principle. In a theoretical model of an internationally fragmented digital good's production process, we show that fairness considerations of tax authorities (namely inequity aversion) can result in a falling apart between a perceived "fair" and arm's length distribution of profits across tax jurisdictions. Our model predicts that a multinational firm follows the fundamental paradigm of international taxation, i.e. the arm's length principle, to properly incentivize internal agents involved in the production of a digital good. However, with inequity averse tax authorities, we find that tax authorities "prefer" a more equal distribution of profits compared to the arm's length allocation. From a multinational firm's perspective, inequity aversion among tax authorities dampens the strategic effect to - in accordance with arm's length principle - shift profits to low tax countries. N2 - Die OECD Base Erosion Profit Shifting (BEPS) Initiative sowie die aktuelle Fairness orientierte öffentliche Diskussion zur Besteuerung digitaler Geschäftsmodelle verdeutlichen die Bedeutung und Komplexität des Fremdvergleichsgrundsatzes. Wir modellieren einen international fragmentierten Produktionsprozess eines digitalen Gutes und zeigen wie Fairness-Erwägungen von Steuerbehörden (d.h. Ungleichheitsaversion) dazu führen kann, dass die als "fair" wahrgenommene und die zum Fremdvergleichsgrundsatz konforme Gewinnverteilung innerhalb der Steuerjurisdiktionen auseinander fällt. Unser Modell sagt voraus, dass eines multinationales Unternehmen dem fundamentalen Paradigma der internationalen Besteuerung, d.h. dem Fremdvergleichsgrundsatz folgt, um firmenintern effiziente Anreize zur Produktion des digitalen Gutes zu setzen. Ungleichheitsaversion auf Seiten der Steuerbehörden führt allerdings dazu, dass die Steuerbehörden eine gleichmäßigere Verteilung der Gewinne im Vergleich zum Fremdvergleichsgrundsatz bevorzugen. Aus Sicht eines multinationalen Unternehmens dämpft die Ungleichheitsaversion der Steuerbehörden den strategischen Anreiz Gewinne in Niedrigsteuerländer zu verlagern. T2 - Fairness und der Fremdvergleichsgrundsatz in der digitalen Ökonomie T3 - Forschungsberichte des Fachbereichs Wirtschaftswissenschaften der Hochschule Düsseldorf - 42 KW - Unternehmensbesteuerung KW - Gewinnverlagerung KW - Fremdvergleichsgrundsatz KW - Fairness KW - corporate income tax KW - profit-shifting KW - arms length principle KW - fairness Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-12029 SN - 2365-3361 IS - 42 CY - Düsseldorf ER - TY - RPRT A1 - Greil, Stefan A1 - Schwarz, Christian A1 - Stein, Stefan ED - Kalmring, Dirk T1 - Perceived Fairness in the Taxation of a Digital Business Model N2 - The “fair” taxation of digital business models is challenging. One of the key aspects – both policy makers and the public opinion consider as most pressuring – is the determination of intragroup transfer prices for intangibles used in digital business models. In this paper, we address the issue of a “perceived fair” taxation of the digital economy in the light of the arm’s length principle based on a survey with transfer pricing experts. The aim of the survey is not to estimate arm’s length profit allocations but rather to elicit fairness considerations in different transfer pricing related scenarios. In a digital economy framework where arm’s length profits are distributed extremely inequitably, subjects perceive this distribution of profits as most unfair compared to more balanced scenarios. Consequently, subjects propose a “fair” distribution of profits that substantially differs from the exogenously given arm’s length allocation. In scenarios with a more balanced arm’s length allocation of profits, we find that the perceived fairness for the expert groups increases while a control group of business students is almost not influenced by the arm’s length allocation of profits. N2 - Die „faire“ Besteuerung digitaler Geschäftsmodelle ist herausfordernd. Einer der Schlüsselaspekte ist dabei die Ermittlung konzerninterner fremdvergleichskonformer Verrechnungspreise für immaterielle Vermögenswerte, die verstärkt in digitalen Geschäftsmodellen genutzt werden. Dieser Beitrag beschäftigt sich mit der „wahrgenommenen“ Fairness bei der Besteuerung digitaler Geschäftsmodelle vor dem Hintergrund des Fremdvergleichsgrundsatz. Grundlage hierfür ist eine Umfrage unter Verrechnungspreis-Experten (Finanzbeamte und Steuerberater). Wir finden, dass wenn der Fremdvergleichsgrundsatz zu einer sehr ungleichen Verteilung des Steuersubstrats führt, die Teilnehmer diese Gewinnverteilung im Vergleich zu ausgewogeneren Szenarien als unfair erachten. Dementsprechend zeigen unsere Ergebnisse, dass zwar der Fremdvergleichsgrundsatz als Referenzpunkt für Fairness Überlegungen dient. In Bezug auf die individuell vorgeschlagene faire Gewinnverteilung können aber erhebliche Unterschiede zur fremdvergleichskonformen Gewinnverteilung bestehen. T2 - Fairness und die Besteuerung digitaler Geschäftsmodelle T3 - Forschungsberichte des Fachbereichs Wirtschaftswissenschaften der Hochschule Düsseldorf - 47 KW - corporate income tax KW - profit-shifting KW - arm's length principle KW - fairness KW - Unternehmensbesteuerung KW - Gewinnverlagerung KW - Fremdvergleichsgrundsatz KW - digitale Geschäftsmodelle Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-15759 SN - 2365-3361 CY - Düsseldorf ER - TY - JOUR A1 - Glembin, Jens A1 - Adam, Mario A1 - Deidert, Jörn A1 - Jagnow, Kati A1 - Rockendorf, Gunter A1 - Wirth, Hans Peter T1 - Simulation and Evaluation of Different Boiler Implementations and Configurations in Solar Thermal Combi Systems JF - Energy Procedia KW - Kessel und große Solarthermieanlagen Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27350 N1 - Acknowledgements The work presented in this paper has been realized within the project “Integration von Heizkesseln in Wärmeverbundsysteme mit großen Solaranlagen“ (Integration of heating boilers in thermal energy distribution circuits with large solar systems), which has been funded by the German Ministry for Environment, Nature Conservation and Nu-clear Safety based on a decision of the German Federal Parliament (FKZ 0325958Z). Within the project, the authors developed a new boiler model for dynamic simulations and validated it against test rig and field data. Field measurements and additional system simulations have been used to analyze and evaluate the interaction of the solar thermal system and the boiler. The authors are grateful for the project support. The content of this publication is in the responsibility of the authors. VL - 30 SP - 601 EP - 610 PB - Elsevier ER - TY - JOUR A1 - Girod, Kai A1 - Lohmann, Heiko A1 - Schlüter, Stefan A1 - Kaluza, Stefan T1 - Methanol Synthesis with Steel-Mill Gases: Simulation and Practical Testing of Selected Gas Utilization Scenarios JF - Processes Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-26928 VL - 8 IS - 12 PB - MDPI ER - TY - JOUR A1 - Girod, Kai A1 - Lohmann, Heiko A1 - Kaluza, Stefan T1 - Methanol Synthesis with Steel Mill Gases: Performance Investigations in an On‐Site Technical Center JF - Chemie Ingenieur Technik KW - DEAL Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34409 SN - 1522-2640 N1 - he investigations within the scope of the project Carbon2Chem® are funded by the German Federal Ministry of Education and Research (BMBF; support code: 03EK3039F). We also thank our project partners in the Carbon2Chem subproject L2 (methanol synthesis) for the trustful cooperation. Open access funding enabled and organized by Projekt DEAL. VL - 93 IS - 5 SP - 850 EP - 855 PB - Wiley ER - TY - JOUR A1 - General, S. A1 - Pöhler, D. A1 - Sihler, H. A1 - Bobrowski, N. A1 - Frieß, U. A1 - Zielcke, J. A1 - Horbanski, M. A1 - Shepson, P. B. A1 - Stirm, B. H. A1 - Simpson, W. R. A1 - Weber, Konradin A1 - Fischer, C. A1 - Platt, U. T1 - The Heidelberg Airborne Imaging DOAS Instrument (HAIDI) – a novel imaging DOAS device for 2-D and 3-D imaging of trace gases and aerosols JF - Atmospheric Measurement Techniques N2 - Abstract. Many relevant processes in tropospheric chemistry take place on rather small scales (e.g., tens to hundreds of meters) but often influence areas of several square kilometer. Thus, measurements of the involved trace gases with high spatial resolution are of great scientific interest. In order to identify individual sources and sinks and ultimately to improve chemical transport models, we developed a new airborne instrument, which is based on the well established Differential Optical Absorption Spectroscopy (DOAS) method. The Heidelberg Airborne Imaging DOAS Instrument (HAIDI) is a passive imaging DOAS spectrometer, which is capable of recording horizontal and vertical trace gas distributions with a resolution of better than 100 m. Observable species include NO2, HCHO, C2H2O2, H2O, O3, O4, SO2, IO, OClO and BrO. Here we give a technical description of the instrument including its custom-built spectrographs and CCD detectors. Also first results from measurements with the new instrument are presented. These comprise spatial resolved SO2 and BrO in volcanic plumes, mapped at Mt. Etna (Sicily, Italy), NO2 emissions in the metropolitan area of Indianapolis (Indiana, USA) as well as BrO and NO2 distributions measured during arctic springtime in context of the BRomine, Ozone, and Mercury EXperiment (BROMEX) campaign, which was performed 2012 in Barrow (Alaska, USA). KW - Luftreinhaltung Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50179 SN - 1867-8548 VL - 7 IS - 10 SP - 3459 EP - 3485 PB - Copernicus ER - TY - CHAP A1 - Geiger, Christian A1 - Ali, Soren A1 - Dilchert, Philipp ED - Olivero, Lucas Fabian ED - Stark, Maja ED - Schürrer, Dagmar ED - Israel, Johann Habakuk T1 - The BildKlangPoet - a Framework for Designing Mixed Reality Painting Experiences Using Generative AI T2 - Proceedings of the 22nd International Conference on Culture and Computer Science: Remixing Analog and Digital (KUI ’25), September 25, 26, 2025, Berlin, Germany KW - MIREVI KW - Applied Computing KW - Arts and Humanities KW - Media Arts Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-60086 SN - 979-8-4007-1478-8/2025/09 SP - 1 EP - 4 PB - ACM CY - New York, NY, USA ER - TY - JOUR A1 - Geerkens, Simon A1 - Sieberichs, Christian A1 - Braun, Alexander A1 - Waschulzik, Thomas T1 - QI²: an interactive tool for data quality assurance JF - AI and Ethics N2 - The importance of high data quality is increasing with the growing impact and distribution of ML systems and big data. Also, the planned AI Act from the European commission defines challenging legal requirements for data quality especially for the market introduction of safety relevant ML systems. In this paper, we introduce a novel approach that supports the data quality assurance process of multiple data quality aspects. This approach enables the verification of quantitative data quality requirements. The concept and benefits are introduced and explained on small example data sets. How the method is applied is demonstrated on the well-known MNIST data set based an handwritten digits. KW - Performance metrics KW - HSD Publikationsfonds KW - DEAL KW - DFG Publikationskosten KW - Machine learning KW - Quality assurance KW - Data integrity KW - Data quality Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-42945 SN - 2730-5961 N1 - Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 532148125 and supported by the central publication fund of Hochschule Düsseldorf University of Applied Sciences VL - 4 SP - 141 EP - 149 PB - Springer Nature ER - TY - JOUR A1 - Gaudry, Arnaud A1 - Huber, Florian A1 - Nothias, Louis-Félix A1 - Cretton, Sylvian A1 - Kaiser, Marcel A1 - Wolfender, Jean-Luc A1 - Allard, Pierre-Marie T1 - MEMO: Mass Spectrometry-Based Sample Vectorization to Explore Chemodiverse Datasets JF - Frontiers in Bioinformatics N2 - In natural products research, chemodiverse extracts coming from multiple organisms are explored for novel bioactive molecules, sometimes over extended periods. Samples are usually analyzed by liquid chromatography coupled with fragmentation mass spectrometry to acquire informative mass spectral ensembles. Such data is then exploited to establish relationships among analytes or samples (e.g., via molecular networking) and annotate metabolites. However, the comparison of samples profiled in different batches is challenging with current metabolomics methods since the experimental variation—changes in chromatographical or mass spectrometric conditions - hinders the direct comparison of the profiled samples. Here we introduce MEMO—MS2 BasEd SaMple VectOrization—a method allowing to cluster large amounts of chemodiverse samples based on their LC-MS/MS profiles in a retention time agnostic manner. This method is particularly suited for heterogeneous and chemodiverse sample sets. MEMO demonstrated similar clustering performance as state-of-the-art metrics considering fragmentation spectra. More importantly, such performance was achieved without the requirement of a prior feature alignment step and in a significantly shorter computational time. MEMO thus allows the comparison of vast ensembles of samples, even when analyzed over long periods of time, and on different chromatographic or mass spectrometry platforms. This new addition to the computational metabolomics toolbox should drastically expand the scope of large-scale comparative analysis. KW - Computational chemistry KW - Massenspektrometrie KW - Metabolomik KW - Naturstoffchemie Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-54660 SN - 2673-7647 VL - 2 PB - Frontiers ER - TY - JOUR A1 - Fu, Guangliang A1 - Heemink, Arnold A1 - Lu, Sha A1 - Segers, Arjo A1 - Weber, Konradin A1 - Lin, Hai-Xiang T1 - Model-based aviation advice on distal volcanic ash clouds byassimilating aircraft in situ measurements JF - Atmospheric Chemistry and Physics N2 - Abstract. The forecast accuracy of distal volcanic ash clouds is important for providing valid aviation advice during volcanic ash eruption. However, because the distal part of volcanic ash plume is far from the volcano, the influence of eruption information on this part becomes rather indirect and uncertain, resulting in inaccurate volcanic ash forecasts in these distal areas. In our approach, we use real-life aircraft in situ observations, measured in the northwestern part of Germany during the 2010 Eyjafjallajökull eruption, in an ensemble-based data assimilation system combined with a volcanic ash transport model to investigate the potential improvement on the forecast accuracy with regard to the distal volcanic ash plume. We show that the error of the analyzed volcanic ash state can be significantly reduced through assimilating real-life in situ measurements. After a continuous assimilation, it is shown that the aviation advice for Germany, the Netherlands and Luxembourg can be significantly improved. We suggest that with suitable aircrafts measuring once per day across the distal volcanic ash plume, the description and prediction of volcanic ash clouds in these areas can be greatly improved. KW - Luftreinhaltung Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50058 SN - 1680-7324 VL - 16 IS - 14 SP - 9189 EP - 9200 PB - Copernicus ER - TY - JOUR A1 - Fomin, Alexey A1 - Petelin, Daniil A1 - Jahr, Andreas T1 - Synthesis and Analysis of a Novel Linkage Mechanism with the Helical Motion of the End-Effector JF - Robotics Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27736 SN - 2218-6581 N1 - Supplementary Material ist verfügbar: https://www.mdpi.com/2218-6581/9/3/53/s1 (Zip mit mov-Datei) VL - 9 IS - 3 SP - 1 EP - 15 PB - MDPI ER - TY - JOUR A1 - Fomin, A. A1 - Dvornikov, L. A1 - Paramonov, M. A1 - Jahr, Andreas T1 - To the theory of mechanisms subfamilies JF - IOP Conference Series: Materials Science and Engineering Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-28062 VL - 124 PB - IOP Publishing ER - TY - CHAP A1 - Fatemi, Armin A1 - Tischbein, Franziska A1 - Wirtz, Frank A1 - Schmoger, Christin A1 - Dorendorf, Stefan A1 - Schurtz, Annika A1 - Echternacht, David A1 - Ulbig, Andreas T1 - On the Impact of Smartification Strategies for the State Estimation of Low Voltage Grids T2 - 13th "Internationale Energiewirtschaftstagung" (IEWT2023), February 15-17, 2023, Vienna, Austria N2 - The decarbonization of for example the energy or heat sector leads to the transformation of distribution grids. The expansion of decentralized energy resources and the integration of new consumers due to sector coupling (e.g. heat pumps or electric vehicles) into low voltage grids increases the need for grid expansion and usage of flexibilities in the grid. A high observability of the current grid status is needed to perform these tasks efficiently and effectively. Therefore, there is a need to increase the observability of low voltage grids by installing measurement technologies (e.g. smart meters). Multiple different measurement technologies are available for low voltage grids which can vary in their benefit to observation quality and their installation costs. Therefore, Bayernwerk Netz GmbH and E.DIS AG in cooperation with E-Bridge Consulting GmbH and the Institute for High Voltage Equipment and Grids, Digitalization and Energy Economics (IAEW) investigated the effectiveness of different strategies for the smartification of low voltage grids. This paper presents the methodology used for the investigation and exemplary results focusing on the impact of intelligent cable distribution cabinets and smart meters on the quality of the state estimation. KW - State Estimation KW - Smart Meter KW - Grid Observability KW - Measurement Technologies Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-41282 SP - 1 EP - 15 PB - arXiv CY - Wien ER - TY - JOUR A1 - Falling, Luisa A1 - Kaluza, Stefan A1 - Strucks, Peter T1 - A Short Review on Ni-Catalyzed Methanation of CO²: Reaction Mechanism, Catalyst Deactivation, Dynamic Operation JF - Chemie Ingenieur Technik N2 - Today, the use of renewable energies and recycling of climate-changing gases are increasingly important. In this context,coupling of methanation with small, decentralized CO2sources such as biogas plants provides one possibility. However,fluctuating availability of renewables for hydrogen production in combination with small storage volumes result in anenhanced demand for dynamic process operation. This leads to new research challenges with respect to the required cata-lysts and the overall process design. To draw reliable conclusions about the catalytic performance under dynamic processoperation, the mechanism of the methanation reaction as well as typical deactivation procedures of the catalyst appliedunder steady-state conditions have to be reviewed thoroughly. KW - Power-to-gas KW - Ni catalysts KW - Dynamic operation KW - Deactivation KW - CO2Methanation Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-32134 SN - 1522-2640 VL - 93 SP - 1526 EP - 1536 PB - Wiley ER - TY - JOUR A1 - Failing, Luisa A1 - Kaluza, Stefan A1 - Strucks, Peter T1 - Catalytic CO2 methanation: Providing optimal test conditions for kinetic investigations JF - Chemie Ingenieur Technik N2 - In the context of using renewable energies and recycling climate-changing gases, methanation of CO2 provides one possibility. However, volatile availability of renewable energies for hydrogen production and fluctuating CO2streams from different sources lead to enhanced demand in investigating the influence of dynamic process operation on the catalyst performance, including detailed kinetic characterization. Reliable kinetic measurements require isothermal temperature control and absence of macrokinetic diffusion limitations. Both were investigated in this work while the determination of steady-state kinetic parameters is part of ongoing studies. Furthermore, a detailed analysis with respect to the long-term-stability of the nickel-based catalyst was performed KW - CO2 methanation KW - Kinetics KW - Long-term stability KW - Ni catalyst KW - Power-to-Gas Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40026 SN - 1522-2640 VL - 95 IS - 5 SP - 749 EP - 753 PB - Wiley ER - TY - JOUR A1 - Erdmann, Matthias A1 - von Berg, Markus A1 - Steffens, Jochen T1 - Development and evaluation of a mixed reality music visualization for a live performance based on music information retrieval JF - Frontiers in Virtual Reality N2 - The present study explores the development and evaluation of a mixed reality music visualization for a live music performance. Real-time audio analysis and crossmodal correspondences were used as design guidelines for creating the visualization, which was presented through a head-mounted-display. To assess the impact of the music visualization on the audience’s aesthetic experience, a baseline visualization was designed, featuring the same visual elements but with random changes of color and movement. The audience’s aesthetic experience of the two conditions (i.e., listening to the same song with different visualizations) was assessed using the Aesthetic Emotions Scale (AESTHEMOS) questionnaire. Additionally, participants answered questions regarding the perceived audiovisual congruence of the stimuli and questionnaires about individual musicality and aesthetic receptivity. The results show that the visualization controlled by real-time audio analysis was associated with a slightly enhanced aesthetic experience of the audiovisual composition compared to the randomized visualization, thereby supporting similar findings reported in the literature. Furthermore, the tested personal characteristics of the participants did not significantly affect aesthetic experience. Significant correlations between these characteristics and the aesthetic experience were observed only when the ratings were averaged across conditions. An open interview provided deeper insights into the participants’ overall experiences of the live music performance. The results of the study offer insights into the development of real-time music visualization in mixed reality, examines how the specific audiovisual stimuli employed influence the aesthetic experience, and provides potential technical guidelines for creating new concert formats. KW - music visualization KW - mixed reality KW - real-time audio analysis KW - music information retrieval KW - aesthetic experience KW - concert formats KW - DFG Publikationskosten KW - HSD Publikationsfonds KW - Virtuelle Realität KW - Mixed Reality KW - Audiovisualisierung KW - Information Retrieval KW - Ästhetische Wahrnehmung KW - Musikwahrnehmung KW - Head-mounted Display Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-51110 SN - 2673-4192 N1 - Funding: Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – 532148125 and supported by the central publication fund of Hochschule Düsseldorf University of Applied Sciences. VL - 6 PB - Frontiers ER - TY - JOUR A1 - Elíasson, Jonas A1 - Yoshitani, Junichi A1 - Miki, Daisuke A1 - Weber, Konradin A1 - Bölke, Christoph A1 - Scharifi, Emad T1 - Measurements of Particle Distribution and Ash Fluxes in the Plume of Sakurajima Volcano with Optical Particle Counter JF - Journal of Disaster Research N2 - Volcanic eruptions have caused very costly disturbances of international air traffic. This problem has been dealt with by simulating the formation and migration of dangerous ash plumes. However, the results of the simulations have sometimes been too safe, producing ash clouds that are too large. This was especially the case for the North Atlantic in 2010 (Eyjafjallajökull) and 2011 (Grímsvötn). Since 2012, an international cooperation team led by the Disaster Prevention Research Institute (DPRI) of Kyoto University has conducted airborne measurements of volcanic ash concentrations in the plume from Mount Sakurajima in Kagoshima Prefecture, Japan. This volcano was chosen because of its frequent but limited eruptions, which allow close observation. These measurement campaigns have provided data showing gravitational flattening of the plume, a new and previously unknown dispersion process of volcanic plumes. A new and previously unknown fallout process, called streak fallout, also has been measured. Results concerning plume flux, concentration distributions, aerosol (PM10) content of the plume, and content of very fine particles (PM2.5 and PM1) are presented, and the ways by which the observational methods can be used to produce reliable initial data and boundary values for simulations of plume dispersion are discussed. KW - Luftreinhaltung Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50030 SN - 1883-8030 VL - 11 IS - 1 SP - 85 EP - 95 PB - Fuji Technology Press Ltd. ER - TY - JOUR A1 - Elíasson, Jonas A1 - Weber, Konradin A1 - Vogel, Andreas A1 - Pálsson, Thorgeir A1 - Yoshitani, Junichi A1 - Miki, Daisuke T1 - Investigation and Separation of Turbulent Fluctuations in Airborne Measurements of Volcanic Ash with Optical Particle Counters JF - Journal of Disaster Research N2 - The science of measuring airborne volcanic ash concentrations supports research in such fields as atmospheric environmental science and the modeling of atmospheric pollution from volcanoes, and is thus very valuable to the aviation industry. These measurements show large scatter directly traceable to turbulent fluctuations responsible for diffusing volcanic dust. Before semistationary components in observations can be compared to each other or to simulation results, they must be separated from fluctuations. In the design of the separation process, however, neither seasonal or diurnal periodicity nor random disturbance with known properties exists to serve as a guideline. It has been suggested that fluctuations could be eliminated through repeated convolutions of a simple 3-point filter enough times. The number of convolutions is chosen from the change in the rate of increase of a special variability parameter. When semistationary concentrations are separated from fluctuations, their statistics are compared to turbulence parameters and the autocorrelation of the series. The method is demonstrated using three measurement series from Sakurajima, Japan measured in 2013. It is concluded that this new method is simple and trustworthy where knowledge and experience of the environmental parameters can be utilized to support the results. They indicate a variability of 40% in the relative fluctuations of the PM10 and around 20% of the PM2.5. The relative fluctuations may be considered completely random, but normally distributed rather than a white noise with an evenly distributed variance spectrum. KW - Luftreinhaltung Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50023 SN - 1883-8030 VL - 11 IS - 1 SP - 72 EP - 84 PB - Fuji Technology Press Ltd. ER - TY - JOUR A1 - Eliasson, Jonas A1 - Yoshitani, Junichi A1 - Weber, Konradin A1 - Yasuda, Nario A1 - Iguchi, Masato A1 - Vogel, Andreas T1 - Airborne Measurement in the Ash Plume from Mount Sakurajima: Analysis of Gravitational Effects on Dispersion and Fallout JF - International Journal of Atmospheric Sciences N2 - Volcanic ash concentrations in the plume from Sakurajima volcano in Japan are observed from airplanes equipped with optical particle counters and GPS tracking devices. The volcano emits several puffs a day. The puffs are also recorded by the Sakurajima Volcanological Observatory. High concentrations are observed in the puffs and fallout driven by vertical air current, called streak fallout. Puffs dispersion is analyzed by the classical diffusion-advection method and a new gravitational dispersion method. The fluid mechanic of the gravitational dispersion, streak fallout, and classical diffusion-advection theory is described in three separate appendices together with methods to find the time gravitational dispersion constant and the diffusion coefficient from satellite photos. The diffusion-advection equation may be used to scale volcanic eruptions so the same eruption plumes can be scaled to constant flux and wind conditions or two eruptions can be scaled to each other. The dispersion analyses show that dispersion of volcanic plumes does not follow either theories completely. It is most likely diffusion in the interface of the plume and the ambient air, together with gravitational flattening of the plumes core. This means larger boundary concentration gradients and smaller diffusion coefficients than state of the art methods can predict. KW - Luftreinhaltung KW - Vulkanismus KW - Vulkanasche KW - Messtechnik KW - Atmosphärisches Aerosol Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50955 SN - 2314-4122 VL - 2014 PB - Wiley ER - TY - CHAP A1 - Dewitz, Bastian A1 - Moazemi, Sobhan A1 - Kalkhoff, Sebastian A1 - Kessler, Steven A1 - Geiger, Christian A1 - Steinicke, Frank A1 - Aubin, Hug A1 - Schmid, Falko ED - Stolze, Markus ED - Loch, Frieder ED - Baldauf, Matthias ED - Alt, Florian ED - Schneegass, Christina ED - Kosch, Thomas ED - Hirzle, Teresa ED - Sadeghian, Shadan ED - Draxler, Fiona ED - Bektas, Kenan ED - Lohan, Katrin ED - Knierim, Pascal T1 - Enacted Selves in Technological Activities – Framework and Case Study in Immersive Telementoring T2 - Mensch und Computer 2023 (MuC '23), September 03--06, 2023, Rapperswil, Switzerland. N2 - The incorporation of new technology into existing human activities can be challenging. Numerous models have been proposed in human-computer interaction (HCI) to guide research and analyze effects. However, bridging the gap between experimental data and real-world applications often proves to be difficult. In the last decades, post-cognitivistic approaches have been developed to explain human cognition and the relation between humans and their environment. In this paper, we present a novel framework to systematically describe and analyze challenges in the context of HCI from multiple perspectives. It extends Cultural-Historical Activity Theory (CHAT) and is enriched by contemporary philosophical perspectives (enactivism, pattern theory of self and post-phenomenology). The proposed framework is further illustrated by applying it to an immersive telementoring prototype system. KW - Mensch-Maschine-Kommunikation KW - Immersion (Virtuelle Realität) KW - Selbstdarstellung KW - Telepräsenz Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-49665 SN - 979-8-4007-0771-1 SP - 289 EP - 299 PB - ACM CY - New York ER - TY - JOUR A1 - Dehmer, Joanna A1 - Niemann, Jörg T1 - Value Chain Management Through Cloud-based Platforms JF - Procedia - Social and Behavioral Sciences N2 - The transformation of traditional value chain processes towards a digital value chain management enables companies to sustainably establish and retain a competitive market position. Digitisation offers the opportunity to design and operate expansive process chains with efficient process operations via co-operative platforms. Increased customer loyalty („lock-in“) via integrated measures at the front-end raises utilization and planning certainty for the technological recovery system. KW - Value Chain Management KW - cloud-based platform KW - digitization Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-25126 UR - 1877-0428 N1 - PII: S1877042818300211 VL - 238 SP - 177 EP - 181 PB - Elsevier ET - SIM 2017: 14th International Symposium in Management, Challenges and Innovation in Management and Entrepreneurship, 27-28 October 2017, Timisoara, Romania ER - TY - CHAP A1 - Deckert, Carsten A1 - Söhnitz, Stefanie ED - Kangaslampi, R. ED - Langie, G. ED - Järvinen, H.-M. ED - Nagy, B. T1 - Words Don't Come Easy to Me – Teaching Academic Writing to Engineering Students in the Age Of AI T2 - SEFI 53rd Annual Conference (SEFI 2025), Tampere, Finland, 15-18 September 2025 N2 - The competence of academic writing is currently still a central requirement for obtaining an academic degree. However, in teaching academic writing, lecturers have to deal with the two challenges of decreasing reading competence in young people and increasing use of artificial intelligence (AI) in reading and writing assignments. In engineering in particular, literacy understood as reading and writing competence is essential - whether for understanding complex tasks, analysing case studies or dealing with technical documents such as the product requirements document. Against this background, it is crucial to develop strategies and discuss modern approaches to specifically promote students' reading and writing skills and thus create an essential basis for successful scientific work and problem-solving. This workshop aims to stimulate an interactive exchange and develop practical solutions in the three core areas strengthening reading competence, developing academic writing skills, and substituting for reading and writing assessments. KW - Literacy KW - Reading Competence KW - Writing Competence KW - Academic Writing KW - Critical Thinking Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-58627 SN - 978-2-87352-029-8 PB - SEFI CY - Tampere ER - TY - RPRT A1 - Deckert, Carsten A1 - Schomaker, Rahel M. A1 - Knappitsch, Eithne T1 - Culture and Entrepreneurship: The Political, Social and Individual Influences on Opportunity Entrepreneurs N2 - The impact of culture on entrepreneurship is a widely accepted phenomenon. Cultural factors influence entrepreneurship via different mechanisms on the macro-, meso-, and micro-level of a country. Building on existing research, we draw a clear link between national cultural dimensions and entrepreneurship, using a new model that arranges different cultural dimensions in groups based on their particular function: political, social, or individual (PSI-model) and that distinguishes between values and practices where relevant. The PSI-model provides a coherent theoretical framework on which different cultural dimensions and their impact on entrepreneurship can be analysed, allowing for particular attention to be drawn to social practices and social values. This paper contributes to a better understanding of the relationship between culture and entrepreneurship, providing empirical evidence of how specific cultural dimensions influence entrepreneurship. The findings are of relevance from a policy perspective and can be used to generate practical recommendations for national institutions interested in promoting entrepreneurship and entrepreneurial activities. The findings are also transferable to other fields related to national cultural dimensions such as level of innovation, investment, budgeting etc. T3 - Working Papers in Industrial Engineering - 3 KW - Entrepreneurship KW - Cultural Dimensions KW - National Culture KW - PSI Model Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-23837 SN - 2627-8375 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - JOUR A1 - Deckert, Carsten A1 - Schomaker, Rahel M. T1 - Cultural tightness–looseness and national innovativeness: impacts of tolerance and diversity of opinion JF - Journal of Innovation and Entrepreneurship N2 - The links between innovativeness as a driver of economic performance, and the determinants of innovativeness have been investigated by management scholars and economists for decades, focusing mostly on “hard factors” as investment in research and development, or education. Focusing on a relatively neglected, but in times of globalization even more important aspect, the infuence of cultural characteristics on innovativeness, we apply diferent econometric models to test for links between cultural tightness and looseness on the one hand, and national innovativeness on the other hand. We fnd that cultural tightness—in the sense of homogenous and intolerant societies—has a negative link to national innovativeness, while cultural looseness—in the sense of tolerant and diverse societies—displays a positive link to national innovativeness. KW - DOAJ KW - DEAL KW - Innovation KW - Kultur KW - Toleranz KW - Diversity of opinion Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-36515 SN - 2192-5372 VL - 11 SP - 1 EP - 19 PB - Springer Nature ER - TY - GEN A1 - Deckert, Carsten A1 - Phan Ngoc, Duc Anh T1 - PlayStation 4 vs. Xbox One: Competitive Analysis of the Video Game Industry T3 - Business Cases in Industrial Engineering - 3 KW - Business Case KW - Strategy KW - Delta Model KW - Video Game Industry Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-41142 CY - Düsseldorf ER - TY - CHAP A1 - Deckert, Carsten A1 - Mohya, Ahmed ED - Heijne, Katrina T1 - Tinkering, Tools and Techniques – Creativity in German Engineering Education T2 - AIJR Proceedings: Proceedings of the 14th European Conference on Creativity in Innovation N2 - Purpose – Engineers are expected to be the creative problem solvers and innovative tinkerers of a company. This article examines to what extent German tertiary education lives up to this expectation. The analysis of German module descriptions in engineering shows that there are no courses dedicated to creativity and that creativity and its techniques are mentioned only sparsely in the modules of the engineering curriculum. Surveys amongst our students show that they are usually familiar with techniques which are based on generating alternatives such as brainstorming and morphological box, but lack knowledge about techniques based on challenging assumptions such as forced connection. They tend to favour discursive techniques over intuitive ones and techniques which use generation of alternatives as an idea-generating principle. A combination of creativity techniques seems to be most conducive to creative output in our course. Finally, we present some first findings on creative sessions in remote work with the help of virtual whiteboards, which have gained in importance since the pandemic. Methodology – Firstly, we present an document analysis of the modules of Bachelor and Master programs of mechanical engineering at German universities and universities of applied sciences. Secondly, we present results from surveys in our Master course in “Innovation and Technology Management” where we gathered data from students over several years and performed an external evaluation of the output using Consensual Assessment Technique (CAT). These results include which creativity techniques the students know prior to the course and which they prefer as well as which techniques seem to be conducive to engineering creativity. Furthermore we surveyed their experiences with creative sessions as remote work. Conclusion – Overall, the article shows the importance to teach prospective engineers the basics in creativity. Students should have the opportunity to acquire knowledge about and apply different creativity techniques, as different techniques have different strengths and weaknesses and, thus, different areas of fruitful application. They should also have the chance to try out different modes such as in-person sessions and virtual sessions, as some of the future work will most likely shift online. Furthermore, a combination of different creativity techniques makes it more likely that engineers break through their usual systematic-analytic way of thinking and helps them to think outside the box to find creative solutions for the pressing problems of our time. KW - Ingenieurstudium KW - Kreativität Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-51142 SN - 2582-3922 SP - 11 EP - 18 PB - AIJR Publisher ER - TY - CHAP A1 - Deckert, Carsten A1 - Mohya, Ahmed T1 - Teaching Sustainable Logistics As A Project-Based Learning Course T2 - European Society for Engineering Education (SEFI), 11-14 September 2023, TUDublin, Ireland N2 - Sustainable logistics combines the task of the 6R of logistics (right product, right place, right time, right condition, right cost) with social and environmental sustainability, especially low emissions and low resource consumption. This means that a problem that is already challenging, namely planning, executing, and controlling logistical processes, gets even more complex and requires aspects of systems thinking to incorporate environmental and social impacts. Classical approaches of teaching, e.g. lectures with presentations and short exercises on closed problems, do not do justice to the complexity and intricacies of the topic sustainability. In such a context, projectbased learning (PBL) where students do group work on open-ended problems with real-world complexity seems to be a more adequate means to teach the subject. The paper describes a PBL course in which students worked on projects to conceptualize micro-depots for parcel delivery in different areas of Düsseldorf. A micro-depot is a temporary storage location in a city from which parcels can be delivered by cargo bikes. The aim was to locate the micro-depot, design the delivery routes, check the feasibility, and calculate the reduction of greenhouse gases and other emissions. The course was taught in cooperation with a partner from the courier, express, and parcel delivery industry. The paper describes the experiences with the course and gives recommendations for a successful implementation of PBL in courses on sustainability. KW - Ingenieurstudium KW - Nachhaltigkeit KW - Logistik Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-51182 PB - TU Dublin CY - Dublin ER - TY - CHAP A1 - Deckert, Carsten A1 - Mohya, Ahmed T1 - Self-directed versus guided learning – searching for the sweet spot with lesson activities in Moodle T2 - SEFI 50th Annual conference of The European Society for Engineering Education. "Towards a new future in engineering education, new scenarios that european alliances of tech universities open up." N2 - In times of a pandemic many university courses have to be taught in an online learning format to respect the requirements of social distancing. Online learning takes place between the poles of self-direction by the student and guidance by the lecturer. In this paper a first-semester course in industrial economics for engineers, which was taught in the self-directed learning format of flipped classroom, was enhanced with lesson activities in the Learning Management System (LMS) Moodle as a means of guided learning with student-content interaction. The paper describes the design and the evaluation of the lesson activities. For the evaluation a student survey to gather the opinions and self-assessments of the students was conducted, and statistical data from Moodle on the performance of the students were collected. The results of the student survey show an overall positive evaluation of the lesson activities by the students who participated in the lesson activities. Furthermore, the results of the statistical data about the students’ performance show a relation between participation in the lesson activities and exam success. As a caveat, however, the results also show that the majority of the students chose not to participate in the lesson activities. KW - Selbstgesteuertes Lernen KW - Kooperatives Lernen KW - Moodle KW - Ingenieurstudium Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-51759 SN - 978-84-123222-6-2 SP - 234 EP - 242 PB - Universitat Politècnica de Catalunya CY - Barcelona ER - TY - RPRT A1 - Deckert, Carsten A1 - Keszler, Julia A1 - Schmitz, Helen A1 - Mohya, Ahmed T1 - Forecasting Game: Teaching Prospective Engineers Quantitative Forecasting Techniques with a Simulation Game N2 - In order to determine demand as precisely as possible, many businesses use several forecasting methods. The aim of forecasting is to determine future demand based on data from the past. The use of a specific method is not always easy and depends on a number of factors. To help prospective engineers find the most suitable forecasting method for a specific problem, a forecasting game was developed and then evaluated. The paper describes the design and the evaluation of the forecasting game. In order to provide an overview of existing forecasting methods, the first part of the paper examined the mathematical fundamentals of eight different forecasting methods and outlined the requirements for their application. The second part of the paper describes the creation of a forecasting game in which prospective engineers can learn how to determine the appropriate forecasting method for specific scenarios. In total, five scenarios covering the three different demand patterns (linear/stationary, trend and seasonal) as well as the forecast quality methods were developed and can be played through. For each scenario, the player has to choose the most appropriate forecasting method for a specific problem based on a self-created task description. To make the game as realistic as possible, a fictional company with a background story was designed. The last part was about the evaluation of the forecasting game. For the evaluation, a student survey to gather the opinions of the students was conducted. The results of the student survey show an overall positive evaluation of the simulation game by the students. However, the test also showed that the game takes a certain amount of time. Since only 15 of the approximately 30 students who tested the game participated in the evaluation, the results are not significant. T3 - Working Papers in Industrial Engineering - 5 Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-39057 SN - 2627-8375 CY - Düsseldorf ER - TY - RPRT A1 - Deckert, Carsten T1 - Creative Heuristics: A Framework for Systematic Creative Problem Solving T2 - CBS Working Paper Series Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-17982 UR - https://www.researchgate.net/publication/318700662_Creative_Heuristics_A_Framework_for_Systematic_Creative_Problem_Solving VL - 1 PB - Cologne Business School CY - Köln ER - TY - RPRT A1 - Deckert, Carsten ED - Niemann, Jörg ED - Deckert, Carsten T1 - Tensions in Team Creativity: Using the Value Square to Model Team Climate for Creativity N2 - This paper explores the tensions in team creativity. The tensions in team creativity are based on a tension between originality and effectiveness in the standard definition of creativity. To display the tensions in team creativity, the value square (“Wertequadrat”) developed by Schulz von Thun (1998) is used which balances a value with its countervalue. The author identifies tensions for cohesion, consensus and conformity. Cohesion is described as a tension between team diversity and team safety, consensus as a tension between constructive controversy and participatory decision-making and conformity as a tension between support for innovation and task orientation. Finally, the connection of individual and team creativity is described as an interplay between solitary and interactive components. T3 - Working Papers in Industrial Engineering - 1 KW - Innovation KW - Creativity KW - Team Climate Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-16763 SN - 2627-8375 CY - Düsseldorf ER - TY - CHAP A1 - Deckert, Carsten T1 - Why Some Ideas Refuse to Diffuse BT - 8th Annual Conference Front End of Innovation (FEI EMEA), Munich N2 - There is a popular saying in German: Innovation is when the market shouts “Hooray!”. Thus, a new idea is only as good as its diffusion into the addressed social system. The question is what affects the adoption or rejection of a new idea. Carsten Deckert shares his experience on the main innovation resistances and on ways to increase the acceptance of new ideas. He talks about which perceived attributes of innovations are conducive to the rate of adoption of an innovation and which are characteristics of failed innovations. Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-18193 PB - KNect 365 CY - München ER - TY - RPRT A1 - Deckert, Carsten T1 - Tensions in Creativity - Using the Value Square to Model Individual Creativity T2 - CBD Working Paper Series N2 - The definition of individual creativity is based on a tension between novelty on the one side and usefulness respectively appropriateness on the other side. The paper explores how this tension pervades the stage and componential theories of creativity. To achieve this, the so called value square (“Wertequadrat”) developed by Helwig (1967) and Schulz von Thun (1998)is used which balances a value with its countervalue to analyze creativity. The author identifies tensions of action and inaction, expertise and mindfulness, precision and ambiguity as well as immersion and detachment permeating the creative process and the components of creativity. As a conclusion a morphological box for creativity is presented which allows one to show which combination of characteristics of the tensions support different stages of creativity. Furthermore implications for development and time management are discussed. Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-18209 UR - https://www.researchgate.net/publication/282875608_Tensions_in_Creativity_-_Using_the_Value_Square_to_Model_Individual_Creativity VL - 2 PB - Cologne Business School CY - Köln ER - TY - CHAP A1 - Deckert, Carsten T1 - Tensions in Corporate Creativity T2 - Book of Papers N2 - The standard definition of creativity is based on a tension between originality and effectiveness. Borrowing from the wave-particle duality in physics one could say that there is an originality-effectiveness duality at work for creativity. The paper explores how this tension pervades Amabile's (1997) componential theory of organizational creativity with the components organizational motivation, management practices (including work assignment and work control) and resources. As a method the so called value square (" Wertequadrat ") developed by Helwig (1967) and Schulz von Thun (1998) is used which balances a value with its countervalue. The author identifies a tension of corporate tradition and corporate change for organizational motivation, a tension of skills and challenges for work assignment, a tension of management by control and management by loss of control for work control as well as a tension of organizational efficiency and organizational slack for resources. Additionally different implications of these tensions for the resistance of a company to creativity, for an organizational climate conducive to creativity as well as for resource allocation in creative endeavours are discussed. KW - Components of Creativity KW - Corporate Creativity KW - Organizational Creativity Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-18065 UR - https://www.researchgate.net/publication/313010955_TENSIONS_IN_CORPORATE_CREATIVITY SP - 79 EP - 86 ER - TY - RPRT A1 - Deckert, Carsten T1 - Tensions in Creative Products - Using the Value Square to Model Functional Creativity T2 - CBS Working Paper Series Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-18078 UR - https://www.researchgate.net/publication/305900610_Tensions_in_Creative_Products_-_Using_the_Value_Square_to_Model_Functional_Creativity VL - 4 PB - Cologne Business School CY - Köln ER - TY - GEN A1 - Deckert, Carsten T1 - Now What You Hear Is Not a Test: The Invention and Commercialization of Rap Music T3 - Business Cases in Industrial Engineering - 2 KW - Business Case KW - Musikindustrie KW - Entrepreneurship KW - Innovation Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-41134 CY - Düsseldorf ER - TY - RPRT A1 - Deckert, Carsten T1 - Good Vibrations from Electronic Circuits: The Technological Development of the Synthesizer T3 - Business Cases in Industrial Engineering - 4 Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44394 SN - 2941-4075 ER - TY - JOUR A1 - Deckert, Carsten T1 - Review of: "Liberalism Caused the Great Enrichment" Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-51193 PB - Qeios Ltd ER - TY - JOUR A1 - de Jonge, Niek F. A1 - Mildau, Kevin A1 - Meijer, David A1 - Louwen, Joris J. R. A1 - Bueschl, Christoph A1 - Huber, Florian A1 - van der Hooft, Justin J. J. T1 - Good practices and recommendations for using and benchmarking computational metabolomics metabolite annotation tools JF - Metabolomics N2 - Background Untargeted metabolomics approaches based on mass spectrometry obtain comprehensive profiles of complex biological samples. However, on average only 10% of the molecules can be annotated. This low annotation rate hampers biochemical interpretation and effective comparison of metabolomics studies. Furthermore, de novo structural characterization of mass spectral data remains a complicated and time-intensive process. Recently, the field of computational metabolomics has gained traction and novel methods have started to enable large-scale and reliable metabolite annotation. Molecular networking and machine learning-based in-silico annotation tools have been shown to greatly assist metabolite characterization in diverse fields such as clinical metabolomics and natural product discovery. Aim of review We highlight recent advances in computational metabolite annotation workflows with a special focus on their evaluation and comparison with other tools. Whilst the progress is substantial and promising, we also argue that inconsistencies in benchmarking different tools hamper users from selecting the most appropriate and promising method for their research. We summarize benchmarking strategies of the different tools and outline several recommendations for benchmarking and comparing novel tools. Key scientific concepts of review This review focuses on recent advances in mass spectral library-based and machine learning-supported metabolite annotation workflows. We discuss large-scale library matching and analogue search, the current bloom of mass spectral similarity scores, and how molecular networking has changed the field. In addition, the potentials and challenges of machine learning-supported metabolite annotation workflows are highlighted. Overall, recent developments in computational metabolomics have started to fundamentally change metabolomics workflows, and we expect that as a community we will be able to overcome current method performance ambiguities and annotation bottlenecks. KW - Metabolomik KW - Massenspektrometrie KW - Maschinelles Lernen KW - Benchmarking KW - Mass fragmentation spectra Y1 - 2022 U6 - https://doi.org/10.1007/s11306-022-01963-y SN - 1573-3890 VL - 18 IS - 12 PB - Springer Nature ER - TY - JOUR A1 - de Jonge, Niek F. A1 - Louwen, Joris J. R. A1 - Chekmeneva, Elena A1 - Camuzeaux, Stephane A1 - Vermeir, Femke J. A1 - Jansen, Robert S. A1 - Huber, Florian A1 - van der Hooft, Justin J. J. T1 - MS2Query: reliable and scalable MS2 mass spectra-based analogue search JF - Nature Communications N2 - Metabolomics-driven discoveries of biological samples remain hampered by the grand challenge of metabolite annotation and identification. Only few metabolites have an annotated spectrum in spectral libraries; hence, searching only for exact library matches generally returns a few hits. An attractive alternative is searching for so-called analogues as a starting point for structural annotations; analogues are library molecules which are not exact matches but display a high chemical similarity. However, current analogue search implementations are not yet very reliable and relatively slow. Here, we present MS2Query, a machine learning-based tool that integrates mass spectral embedding-based chemical similarity predictors (Spec2Vec and MS2Deepscore) as well as detected precursor masses to rank potential analogues and exact matches. Benchmarking MS2Query on reference mass spectra and experimental case studies demonstrate improved reliability and scalability. Thereby, MS2Query offers exciting opportunities to further increase the annotation rate of metabolomics profiles of complex metabolite mixtures and to discover new biology. KW - Metabolomik KW - Massenspektrometrie KW - Maschinelles Lernen KW - Reproduzierbarkeit KW - Metabolomics KW - Mass Spectrometry KW - Machine Learning KW - Complex Mixtures Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46105 SN - 2041-1723 VL - 14 PB - Springer ER - TY - INPR A1 - de Jonge, Niek F. A1 - Joas, David A1 - Truong, Lem-Joe A1 - van der Hooft, Justin J.J. A1 - Huber, Florian T1 - Reliable cross-ion mode chemical similarity prediction between MS2 spectra T2 - biorxiv N2 - Mass spectrometry is commonly used to characterize metabolites in untargeted metabolomics. This can be done in positive and negative ionization mode, a choice typically guided by the fraction of metabolites a researcher is interested in. During analysis, mass spectral comparisons are widely used to enable annotation through reference libraries and to facilitate data organization through networking. However, until now, such comparisons between mass spectra were restricted to mass spectra of the same ionization mode, as the two modes generally result in very distinct fragmentation spectra. To overcome this barrier, here, we have implemented a machine learning model that can predict chemical similarity between spectra of different ionization modes. Hence, our new MS2DeepScore 2.0 model facilitates the seamless integration of positive and negative ionization mode mass spectra into one analysis pipeline. This creates entirely new options for data exploration, such as mass spectral library searching of negative ion mode spectra in positive ion mode libraries or cross-ionization mode molecular networking. Furthermore, to improve the reliability of predictions and better cope with unseen data, we have implemented a method to estimate the quality of prediction. This will help to avoid false predictions on spectra with low information content or spectra that substantially differ from the training data. We anticipate that the MS2DeepScore 2.0 model will extend our current capabilities in organizing and annotating untargeted metabolomics profiles. KW - Massenspektrometrie KW - Metabolomik KW - Maschinelles Lernen Y1 - 2024 U6 - https://doi.org/10.1101/2024.03.25.586580 PB - Cold Spring Harbor Laboratory ER - TY - JOUR A1 - de Jonge, Niek F. A1 - Hecht, Helge A1 - Strobel, Michael A1 - Wang, Mingxun A1 - van der Hooft, Justin J. J. A1 - Huber, Florian T1 - Reproducible MS/MS library cleaning pipeline in matchms JF - Journal of Cheminformatics N2 - Mass spectral libraries have proven to be essential for mass spectrum annotation, both for library matching and training new machine learning algorithms. A key step in training machine learning models is the availability of high-quality training data. Public libraries of mass spectrometry data that are open to user submission often suffer from limited metadata curation and harmonization. The resulting variability in data quality makes training of machine learning models challenging. Here we present a library cleaning pipeline designed for cleaning tandem mass spectrometry library data. The pipeline is designed with ease of use, flexibility, and reproducibility as leading principles.Scientific contributionThis pipeline will result in cleaner public mass spectral libraries that will improve library searching and the quality of machine-learning training datasets in mass spectrometry. This pipeline builds on previous work by adding new functionality for curating and correcting annotated libraries, by validating structure annotations. Due to the high quality of our software, the reproducibility, and improved logging, we think our new pipeline has the potential to become the standard in the field for cleaning tandem mass spectrometry libraries. KW - Massenspektrometrie KW - Metabolomik KW - Metadaten KW - Python (Programmiersprache) KW - Library cleaning KW - HSD Publikationsfonds KW - DFG Publikationskosten Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46491 SN - 1758-2946 VL - 16 IS - 1 PB - Springer Nature ER - TY - JOUR A1 - de Haas, Hella T1 - “God is more pro-woman than anyone in this world”: Fundamentalist evangelical influencers as an anti-feminist defensive public JF - Publizistik N2 - Counterpublics provide space for marginalised groups to voice opinions and experiences neglected by hegemonic discourse. This paper highlights publics that present themselves as counterpublics but which in actual fact reinforce existing hierarchies, particularly patriarchal structures. The case study of Girl Defined Ministries, a fundamentalist evangelical influencer duo based in Texas, links the research fields of digital religion and anti-feminist defensive publics, revealing parts of anti-feminism online that have hitherto been the reserve of digital religion studies. A consideration of the national history and religious developments of recent decades in the United States allows for a deeper understanding of this type of religious influencer. Girl Defined post content about their concept of “Biblical womanhood” on multiple platforms. In the present study, 56 blog articles by Girl Defined were analysed using qualitative content analysis through the analytical lens of the Social Identity model of Deindividuation Effects (SIDE), which reflects on how group identity is formed by simultaneously enhancing in-group and devaluing out-group norms. The findings demonstrate that Girl Defined portray the out-group, feminism, as an anti-God ideology responsible for the collective misery of women in Western societies, and hold women responsible for their own discontent by choosing the wrong path. Girl Defined therefore promote their in-group values, gender roles for women defined by God, and submission to men as the only way to live a joyful life. Presenting themselves as a persecuted and ostracised counterpublic to a feminist mainstream is central to Girl Defined’s argument. The paper adds to the existing literature on women anti-feminist and religious influencers as a development of mediatization. KW - Anti-feminism KW - Religious influencers KW - Defensive public KW - Women anti-feminist influencers KW - Evangelicalism KW - Fundamentalism KW - HSD Publikationsfonds KW - DFG Publikationskosten KW - FBSK_Webseite Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-52201 SN - 0033-4006 PB - Springer Nature ER - TY - JOUR A1 - Das, Sampad Gobinda A1 - Bhattacharyya, Suvanjan A1 - Chattopadhyay, Himadri A1 - Benim, Ali Cemal T1 - Transport Phenomenon of Simultaneously Developing Flow and Heat Transfer in Twisted Sinusoidal Wavy Microchannel under Pulsating Inlet Flow Condition JF - Heat Transfer Engineering Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27697 SP - 1 EP - 14 PB - Taylor & Francis ER - TY - GEN A1 - Cosfeld, Jörg T1 - Rapid Deployment of Hardware-Accelerated Vision AI Applications on the Xilinx Kria KV260 Platform T1 - Konzeption und Implementierung hardwarebeschleunigter Vision-KI-Systeme auf der Xilinx Kria KV260 Plattform N2 - This teaching-oriented paper presents a structured introduction to the deployment of hardware-accelerated vision AI applications on the Xilinx Kria KV260 platform. Rather than focusing on low-level hardware design, the material emphasises system integration, runtime configuration, and the interaction between software and reconfigurable logic within a modern heterogeneous embedded system. Using a pre-integrated smart camera application as a guiding example, the paper demonstrates how FPGA-based acceleration can be accessed through standard Linux tools, containerised execution environments, and network-based video streaming. The approach is specifically designed for higher education, enabling students to gain practical insight into adaptive computing platforms while maintaining a clear conceptual understanding of hardware–software co-design principles. N2 - Diese lehrorientierte Arbeit präsentiert eine strukturierte Einführung in die Implementierung hardwarebeschleunigter Vision-KI-Anwendungen auf der Xilinx Kria KV260 Plattform. Anstelle einer vertieften Betrachtung niederstufiger Hardwareentwurfsdetails liegt der Schwerpunkt auf Systemintegration, Laufzeitkonfiguration sowie der Interaktion zwischen Software und rekonfigurierbarer Logik innerhalb eines modernen heterogenen Embedded-Systems. Anhand einer vorintegrierten Smart-Camera-Applikation wird demonstriert, wie FPGA-basierte Beschleunigung über standardisierte Linux-Werkzeuge, containerisierte Ausführungsumgebungen und netzwerkbasiertes Video-Streaming zugänglich gemacht werden kann. Der gewählte Ansatz richtet sich insbesondere an den Einsatz in der Hochschullehre und ermöglicht Studierenden einen praxisnahen Zugang zu adaptiven Rechenplattformen, ohne dabei das konzeptionelle Verständnis der Prinzipien des Hardware-Software-Codesigns aus dem Blick zu verlieren. KW - Kria KV260 KW - FPGA acceleration KW - vision AI KW - heterogeneous computing KW - embedded Linux KW - hardware–software co-design KW - adaptive computing KW - PetaLinux KW - Vitis KW - Xilinx Runtime (XRT) Y1 - 2026 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-60815 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - RPRT A1 - Christianson, Kiel A1 - Herder, Jens T1 - Mini-lectures in Computer Science on the WWW N2 - The task of the Center for Language Research is to provide content-based English language instruction for students of computer science and engineering. As such, we find ourselves at the confluence of many of the streams currently running through the English Language Teaching profession, including English for Science and Technology (EST), English for Academic Purposes (EAP), English for Specific Purposes (ESP), Computer-assisted language learning (CALL), content-based instruction, and multimedia applications in foreign language pedagogy. This paper describes our initial attempts to construct a number of World Wide Web pages where students will be able to study EST, EAP, and computer science topics on their own in a multimedia environment. KW - English as a foreign language KW - teaching KW - web and video supported learning KW - Lehre Y1 - 1995 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-854 CY - Aizu ER - TY - JOUR A1 - Carsten, Stöhr A1 - Monika, Janssen A1 - Jörg, Niemann A1 - Benedikt, Reich T1 - Smart Services JF - Procedia - Social and Behavioral Sciences Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-59819 SN - 1877-0428 VL - 238 SP - 192 EP - 198 PB - Elsevier ET - SIM 2017 / 14th International Symposium in Managemen ER - TY - JOUR A1 - Carslaw, Nicola A1 - Bekö, Gabriel A1 - Langer, Sarka A1 - Schoemaecker, Coralie A1 - Mihucz, Victor G. A1 - Dudzinska, Marzenna A1 - Wiesen, Peter A1 - Nehr, Sascha A1 - Huttunen, Kati A1 - Querol, Xavier A1 - Shaw, David T1 - A new framework for indoor air chemistry measurements: Towards a better understanding of indoor air pollution JF - Indoor Environments KW - Indoor air quality KW - INDAIRPOLLNET KW - EU COST Action KW - Indoor air chemistry KW - Luftreinhaltung Y1 - 2024 U6 - https://doi.org/10.1016/j.indenv.2023.100001 SN - 2950-3620 VL - 1 IS - 1 PB - Elsevier ER - TY - THES A1 - Buckley, Andrea T1 - Medical social work in Ireland and Germany : a comparison of a personal social service in two different welfare states N2 - Diese Masterarbeit wurde als Abschlußarbeit für den Studiengang Master of European Social Policy Analysis an der National University of Ireland Maynooth eingereicht . Der Titel lautet : Soziale Arbeit im Krankenhaus in Irland und Deutschland: ein Vergleich einer personenbezogenen sozialen Dienstleistung in zwei verschiedenen Wohlfahrtsstaaten. Sie beschreibt und analysiert den Kontext bzw. die Rahmenbedingungen, in dem Soziale Arbeit im Krankenhaus (Sozialdienst im Krankenhaus) stattfindet. Hier wird der Bezug zwischen gesellschaftlichem Kontext als Ganzem, dem Gesundheitssystem im allgemeinen (Makroebene) und den Rahmenbedingungen im Krankenhaus (Mesoebene) besonderes Augenmerk gewidmet. Die Idee dieser Arbeit ist, einen kurzen historischen Überblick über die Entwicklung der Krankenhaussozialarbeit (Mikroebene) in beiden Ländern zu geben, sowie Hintergrundinformationen darüber, was Soziale Arbeit / Sozialdienst im Krankenhaus beinhaltet. Der untersuchte Zeitraum reicht von 1980 bis heute. Die Hauptuntersuchungsfragen lauten: Welche Interdependenzen gibt es zwischen Makro-, Meso- und Mikroebene? Haben Veränderungen im Gesundheitssystem bzw. der Gesundheitspolitik im Allgemeinen und hinsichtlich der Krankenhäuser im Besonderen die Arbeit im Krankenhaussozialdienst beeinflusst und wenn ja, wie? Welche Gemeinsamkeiten und Unterschiede gibt es in diesem Kontext in den beiden untersuchten Ländern? N2 - This dissertation, written for the course Master of European Social Policy Analysis – National University of Ireland Maynooth - , shows the context or so-called framework within which the medical social work service in two different welfare states: Ireland and Germany operates. This means the societal context as a whole, the health system in general (macro-level) and the hospital setting (mezzo-level) in particular. The idea of this publication is to give a short overview of the historic development of medical social work (micro-level) in Ireland and Germany and some background information about what medical social work is. The time frame examined starts from the 1980s up to present. The main questions to be answered are: What are the interdependencies between the macro-, mezzo- and micro-level? Have changes in the health system in general and the hospitals in particular influenced medical social work and if so how? What are the similarities and differences in the two countries? KW - Krankenhaus KW - Irland KW - Deutschland KW - Ländervergleich KW - komparative Sozialforschung KW - medical social work KW - Ireland KW - Germany KW - comparative research KW - hospitals KW - FHD Y1 - 1998 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-3292 ER - TY - JOUR A1 - Brummel, Mattis A1 - Müller, Patrick A1 - Braun, Alexander T1 - Spatial precision and recall indices to assess the performance of instance segmentation algorithms JF - Electronic Imaging KW - Space-Variance KW - Computer Vision KW - IoU KW - image perturbations Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-41552 SN - 2470-1173 VL - 34 IS - 16 SP - 1 EP - 6 PB - Society for Imaging Science and Technology ER - TY - THES A1 - Brummel, Mattis T1 - Performance evaluation of state-of-the-art computer vision systems in the field of autonomous driving in dependency of optical parameters KW - Master KW - SoSe21 Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-37508 CY - Düsseldorf ER - TY - JOUR A1 - Brinkmann, Fabian A1 - Aspöck, Lukas A1 - Ackermann, David A1 - Lepa, Steffen A1 - Vorländer, Michael A1 - Weinzierl, Stefan T1 - A Round Robin on Room Acoustical Simulation and Auralization JF - Journal of the Acoustical Society of America N2 - A round robin was conducted to evaluate the state of the art of room acoustic modeling software both in the physical and perceptual realms. The test was based on six acoustic scenes highlighting specific acoustic phenomena and for three complex, “real-world” spatial environments. The results demonstrate that most present simulation algorithms generate obvious model errors once the assumptions of geometrical acoustics are no longer met. As a consequence, they are neither able to provide a reliable pattern of early reflections nor do they provide a reliable prediction of room acoustic parameters outside a medium frequency range. In the perceptual domain, the algorithms under test could generate mostly plausible but not authentic auralizations, i.e., the difference between simulated and measured impulse responses of the same scene was always clearly audible. Most relevant for this perceptual difference are deviations in tone color and source position between measurement and simulation, which to a large extent can be traced back to the simplified use of random incidence absorption and scattering coefficients and shortcomings in the simulation of early reflections due to the missing or insufficient modeling of diffraction. Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-59034 SN - 0001-4966 VL - 145 IS - 4 SP - 2746 EP - 2760 PB - Acoustical Society of America ER - TY - CHAP A1 - Brettschneider, Nico A1 - Herder, Jens A1 - de Mooij, Jeroen A1 - Ryskeldiev, Bektur ED - Herder, Jens T1 - Audio vs. Visual Avatars as Guides in Virtual Environments T2 - 21th International Conference on Human and Computer, HC-2018, March 27–28, 2019, Shizuoka University, Hamamatsu, Japan. N2 - Through constant technical progress, multi-user virtual reality is transforming towards a social activity that is no longer only used by remote users, but also in large-scale location-based experiences. We evaluate the usage of realtime-tracked avatars in co-located business-oriented applications in a "guide-user-scenario" in comparison to audio only instructions. The present study examined the effect of an avatar-guide on the user-related factors of Spatial Presence, Social Presence, User Experience and Task Load in order to propose design guidelines for co-located collaborative immersive virtual environments. Therefore, an application was developed and a user study with 40 participants was conducted in order to compare both guiding techniques of a realtime-tracked avatar guide and a non-visualised guide with otherwise constant conditions. Results reveal that the avatar-guide enhanced and stimulated communicative processes while facilitating interaction possibilities and creating a higher sense of mental immersion for users. Furthermore, the avatar-guide appeared to make the storyline more engaging and exciting while helping users adapt to the medium of virtual reality. Even though no assertion could be made concerning the Task Load factor, the avatar-guide achieved a higher subjective value on User Experience. Due to the results, avatars can be considered valuable social elements in the design of future co-located collaborative virtual environments. KW - Virtual Reality KW - Co-located Collaborations KW - Networked Immersive Virtual Environments KW - Head-mounted Display KW - Avatars KW - Lehre Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-23859 UR - https://vsvr.medien.hs-duesseldorf.de/publications/hc2018-avatar/ PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - JOUR A1 - Bordoloi, Ankur A1 - Sanchez, Miguel A1 - Noei, Heshmat A1 - Kaluza, Stefan A1 - Großmann, Dennis A1 - Wang, Yuemin A1 - Grünert, Wolfgang A1 - Muhler, Martin T1 - Catalytic Behaviour of Mesoporous Cobalt-Aluminum Oxides for CO Oxidation JF - Journal of Catalysts Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34344 SN - 2314-5110 SP - 1 EP - 9 PB - Hindawi ER - TY - JOUR A1 - Bonn, Boris A1 - von Schneidemesser, Erika A1 - Andrich, Dorota A1 - Quedenau, Jörn A1 - Gerwig, Holger A1 - Lüdecke, Anja A1 - Kura, Jürgen A1 - Pietsch, Axel A1 - Ehlers, Christian A1 - Klemp, Dieter A1 - Kofahl, Claudia A1 - Nothard, Rainer A1 - Kerschbaumer, Andreas A1 - Junkermann, Wolfgang A1 - Grote, Rüdiger A1 - Pohl, Tobias A1 - Weber, Konradin A1 - Lode, Birgit A1 - Schönberger, Philipp A1 - Churkina, Galina A1 - Butler, Tim M. A1 - Lawrence, Mark G. T1 - BAERLIN2014 – the influence of land surface types on and the horizontal heterogeneity of air pollutant levels in Berlin JF - Atmospheric Chemistry and Physics N2 - Abstract. Urban air quality and human health are among the key aspects of future urban planning. In order to address pollutants such as ozone and particulate matter, efforts need to be made to quantify and reduce their concentrations. One important aspect in understanding urban air quality is the influence of urban vegetation which may act as both emitter and sink for trace gases and aerosol particles. In this context, the "Berlin Air quality and Ecosystem Research: Local and long-range Impact of anthropogenic and Natural hydrocarbons 2014" (BAERLIN2014) campaign was conducted between 2 June and 29 August in the metropolitan area of Berlin and Brandenburg, Germany. The predominant goals of the campaign were (1) the characterization of urban gaseous and particulate pollution and its attribution to anthropogenic and natural sources in the region of interest, especially considering the connection between biogenic volatile organic compounds and particulates and ozone; (2) the quantification of the impact of urban vegetation on organic trace gas levels and the presence of oxidants such as ozone; and (3) to explain the local heterogeneity of pollutants by defining the distribution of sources and sinks relevant for the interpretation of model simulations. In order to do so, the campaign included stationary measurements at urban background station and mobile observations carried out from bicycle, van and airborne platforms. This paper provides an overview of the mobile measurements (Mobile BAERLIN2014) and general conclusions drawn from the analysis. Bicycle measurements showed micro-scale variations of temperature and particulate matter, displaying a substantial reduction of mean temperatures and particulate levels in the proximity of vegetated areas compared to typical urban residential area (background) measurements. Van measurements extended the area covered by bicycle observations and included continuous measurements of O3, NOx, CO, CO2 and point-wise measurement of volatile organic compounds (VOCs) at representative sites for traffic- and vegetation-affected sites. The quantification displayed notable horizontal heterogeneity of the short-lived gases and particle number concentrations. For example, baseline concentrations of the traffic-related chemical species CO and NO varied on average by up to ±22.2 and ±63.5 %, respectively, on the scale of 100 m around any measurement location. Airborne observations revealed the dominant source of elevated urban particulate number and mass concentrations being local, i.e., not being caused by long-range transport. Surface-based observations related these two parameters predominantly to traffic sources. Vegetated areas lowered the pollutant concentrations substantially with ozone being reduced most by coniferous forests, which is most likely caused by their reactive biogenic VOC emissions. With respect to the overall potential to reduce air pollutant levels, forests were found to result in the largest decrease, followed by parks and facilities for sports and leisure. Surface temperature was generally 0.6–2.1 °C lower in vegetated regions, which in turn will have an impact on tropospheric chemical processes. Based on our findings, effective future mitigation activities to provide a more sustainable and healthier urban environment should focus predominantly on reducing fossil-fuel emissions from traffic as well as on increasing vegetated areas. KW - Luftreinhaltung Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50065 SN - 1680-7324 VL - 16 IS - 12 SP - 7785 EP - 7811 PB - Copernicus ER - TY - CHAP A1 - Boelter, Sarah A1 - Claas, Oliver A1 - Dähne, Judith A1 - Heuer, Jan-Ocko A1 - Kahlisch, Mareen A1 - Koch, Katharina A1 - Krüger, Frank A1 - Lazarescu, Roxana A1 - Lubahn, Antje A1 - Reichwald, Julian A1 - Reiter, Martin A1 - Schilirò, Darina A1 - Schimmer, Thomas M. A1 - Schmidt, Diana A1 - Schmitt, Kathrin A1 - Schreiber, Felix A1 - Schulz, Dörthe A1 - Stiller, Gabriele A1 - Werth, Robert A1 - Ian, Wolff ED - Sure-Vetter, York ED - Groth, Paul T1 - The Role of Universities of Applied Sciences in the Development of a national Research Data Infrastructure T2 - 2nd Conference on Research Data Infrastructure (CoRDI) N2 - The presentation highlights the role of Universities of Applied Sciences (UAS) in research and their potential for the development of a National Research Data Infrastructure (NFDI). To address the growing need for structured research data management (RDM) at UASs, the FDM@HAW network has emerged as a potential connector between NFDI and UAS landscape. It aims to raise awareness of NFDI services across a diverse UAS network, and articulate UAS-specific requirements back to NFDI. In doing so, it strengthens mutual integration and fosters targeted support. With over 200 institutions [1], UASs constitute a significant part of the German science system. Traditionally focused on teaching, UASs have become drivers of applied research and regional innovation. Their contributions to education and research make them essential actors in shaping RDM in Germany. Research at UASs benefits business, science, and society. In many federal states, the right to award doctorates further reinforces their research activities. Strengthening RDM competencies is important to ensure that valuable research data from UAS meet the FAIR principles. Furthermore, employers benefit from graduates equipped with strong data literacy. Despite their potential, UASs remain underrepresented in the NFDI (and partly in the RDM community). Low participation in NFDI consortia and limited association membership indicate a broader lack of engagement, largely due to low awareness of NFDI among UAS researchers and administrations [2, p.42] [3, p.6]. The NFDI structure report 2024 addresses this gap and calls for broader contact to UASs [4, p.27]. Structural challenges limit UAS engagement in RDM and the NFDI, including high teaching loads, minor resources, and partnerships prioritizing data protection over openness or commercial interests. In response, many UASs have implemented strategic networking in research, teaching, and infrastructure to overcome resource limitations. This approach also drives the development of RDM structures, often via projects or state-level initiatives. The Federal Ministry of Education and Research supports 14 projects [5] through its funding guideline for RDM at UASs. This initiative led to the establishment of the FDM@HAW network in 2023, connecting these projects. Since its formation, the network has engaged in continuous exchange on RDM development and contributed to events such as Love Data Week, the FORTRAMA conference [6], Volkswagen Foundation's Digital Skills in Science Week [7] and E-Science-Tage [8]. These activities have helped sharpen the network's focus, identify shared priorities and integrate new members. Members contribute ideas, tools and services developed in RDM projects or collaborations - such as the "NFDI Survival Kit" [9] and the "NFDI-N(HAW)igator" [10] - to promote RDM awareness and inform about NFDI on a national scale. In line with NFDI's mission to "improv[e] the possibilities for using data for science and society" [11], FDM@HAW seeks to disseminate knowledge of and strengthen competence in delving into these possibilities. The network provides valuable support to activate a target group that has largely been untapped. Close cooperation between NFDI and FDM@HAW will then contribute to the successful development of a nationwide RDM ecosystem. In the presentation, proposals for cooperation will be outlined. (The references [1]-[11] are given in the PDF abstract according to the template). KW - Nationale Forschungsdateninfrastruktur (NFDI) e.V. KW - Angewandte Forschung KW - Forschungsdatenmanagement KW - Fachhochschule Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-56313 UR - https://web.archive.org/web/20250829210115/https://www.nfdi.de/wp-content/uploads/2025/08/CoRDI-2025-Conference-Programme_final.pdf PB - Zenodo ER - TY - THES A1 - Blum, Jessica T1 - Queering Empowerment and Accountability - Towards a Decolonial Peacebuilding-Development Praxis Nexus T3 - Hervorragende Abschlussarbeiten im Fachbereich Sozial- und Kulturwissenschaften - 134 KW - Queer KW - Empowerment KW - Accountability KW - Decolonial KW - Peacebuilding-Development Nexus Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-38517 CY - Düsseldorf ER - TY - RPRT A1 - Bleuel, Hans-Hubertus ED - Kalmring, Dirk T1 - The German banking system and the global financial crisis: causes, developments and policy responses N2 - Germany’s banking sector has been severely hit by the global financial crisis. In a German context as of February, 2009, this paper reviews briefly the structure of the banking industry, quantifies effects of the crisis on banks and surveys responses of economic policy. It is argued that policy design needs to enhance transparency and enforce the liability principle. In addition, economic policy should not eclipse principles of competition policy. N2 - Der deutsche Bankensektor ist durch die internationale Finanzkrise schwer getroffen. Auf Deutschland und die im Februar 2009 verfügbaren Informationen bezogen, werden die Struktur des Bankensektors kurz umrissen, die Effekte auf die Banken quantifiziert und wirtschaftspolitische Reaktionen aufgezeigt. Ziel der Wirtschaftspolitik ist es, die Transparenz zu erhöhen und das Haftungsprinzip durchzusetzen. Darüber hinaus sollten Grundsätze der Wettbewerbspolitik nicht in den Hintergrund geraten. T2 - The German banking system and the global financial crisis: causes, developments and policy responses T3 - Forschungsberichte des Fachbereichs Wirtschaftswissenschaften der Hochschule Düsseldorf - 8 KW - Bank KW - Bankenkrise KW - Finanzmarktkrise KW - Wirtschaftspolitik KW - Deutschland KW - bank KW - banking crisis KW - financial crisis KW - economic policy KW - Germany KW - FHD Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-5116 N1 - Erster / früherer Titel der Reihe: Forschungsberichte des Fachbereichs Wirtschaft der Fachhochschule Düsseldorf bis 2014 IS - 8 CY - Düsseldorf ER - TY - JOUR A1 - Biswas, Nirmalendu A1 - Mandal, Dipak Kumar A1 - Manna, Nirmal K. A1 - Benim, Ali Cemal T1 - Magneto-hydrothermal triple-convection in a W-shaped porous cavity containing oxytactic bacteria JF - scientific reports N2 - Bioconvective heat and mass transport phenomena have recently been the subject of interest in diverse fields of applications pertaining to the motion of fluids and their thermophysical properties. The transport processes in a system involving triple convective phenomena, irregular geometry, and boundary conditions constitute a complex phenomenon. This work aims to explore the mixed thermo-bioconvection of magnetically susceptible fluid containing copper nanoparticles and oxytactic bacteria in a novel W-shaped porous cavity. The buoyant convention is generated due to the isothermal heating at the wavy bottom wall, whereas the mixed convection is induced due to the shearing motion of the top-cooled sliding wall. Furthermore, the bioconvection is induced due to the manifestation of oxytactic bacteria or organisms. The inclined sidewalls are insulated. The geometry is packed with water based Cu nanoparticle mixed porous structure, which is subjected to a magnetizing field acted horizontally. The complex transport equations are transformed into nondimensional forms, which are then computed using the finite volume-based developed code. The coupled triple-convective flow physics are explored for a wide range of involved controlling parameters, which could provide helpful insight to the system designer for its proper operation. The shape of geometry can be considered one of the important parameters to control the heat and mass transport phenomena. In general, the influence of amplitude (δ) is more compared to the waviness number (m) of the undulations. The magnitude of heat (Nu) and mass (Sh) transfer rate for the W-shaped cavity is high compared to conventional square and trapezoidal-shaped cavities. The output of the analysis could be very helpful for the designer for modeling devices operating on nanotechnology-based bioconvection, microbial fuel cells, and others. KW - DOAJ Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40041 SN - 2045-2322 VL - 12 PB - Springer Nature ER - TY - JOUR A1 - Biswas, Nirmalendu A1 - Mandal, Dipak Kumar A1 - Manna, Nirmal K. A1 - Benim, Ali Cemal T1 - Thermomagnetic convection and entropy generation in a hybrid nanofluid filled wavy-walled cavity heated non-uniformly JF - Archives of Thermodynamics N2 - In this work, thermomagnetic convection and irreversibility production in a hybrid nanofluid-filled wavy-walled porous thermal system containing a semi-circular heated bottom is presented. Both the sidewalls of the enclosure are cooled and undulated with varying undulation numbers. The lower wall is partially undulated following a semi-circular-shaped object and is heated isothermally. The horizontal walls are insulated. The cavity is occupied with Cu-Al2O3/water-based hybrid nanofluid and porous substances under the impact of the evenly applied horizontal magnetic field. This work significantly contributes to the existing research rendering an exhaustive understanding of the hydrothermal flow-physics as well as irreversibility production of a hybrid nanofluid in the cavity having surface undulation. The Galerkin weighted finite element method is utilized to solve the mathematical model. The hydrothermal performance of the thermal system is considerably influenced by various pertinent factors such as Darcy-Rayleigh number, Darcy number, Hartmann number, and number of undulations. The wall undulations have a critical role in altering the hydrothermal performance. Heatlines are used to analyse heat transport dynamics from the protruded hot surface to the heat sink. The protruded heater wall induces the formation of a hot upward plume in the nearest fluid layers. The flow divides into two parts forming a pair of circulations due to symmetrical cooling at the sidewalls. The flow behaviours are significantly dampened by increasing the Hartmann number. The associated total entropy generation is also demonstrated. This study contributes to the existing domain knowledge and provides insights for designing and optimizing similar thermal systems. KW - Wärmeübertragung KW - Numerische Strömungssimulation KW - Finite-Elemente-Methode KW - Nanofluidik Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-52344 SN - 1231-0956 SP - 61 EP - 81 PB - Polish Academy of Sciences ER -