TY - CHAP A1 - Gaida, Daniel A1 - Stuhlsatz, André A1 - Meier, Hans-Günter ED - Wendemuth, Andreas ED - Meier, Hans-Günter T1 - Fusion of Visual and Inertial Measurements for Pose Estimation T2 - Proceedings of the Workshop on Emotion-, Speech- and Face Recognition with Advanced Classifiers: Düsseldorf, Germany, May 16 - 17, 2008 ; 3rd joined research workshop between Otto-von-Guericke University Magdeburg and the University of Applied Sciences FH Düsseldorf Y1 - 2008 SN - 9783940961242 SP - 39 EP - 48 PB - Otto-von-Guericke University Magdeburg CY - Magdeburg ER - TY - CHAP A1 - Treskunov, Anastasia A1 - Vogel, Christoph A1 - Wróblewska, Marta A1 - Bertram, Michael A1 - Büntig, Fabian A1 - Geiger, Christian ED - Chisik, Yoram ED - Holopainen, Jussi ED - Khaled, Rilla ED - Luis Silva, José ED - Alexandra Silva, Paula T1 - G:RASS – Experiencing a City Through an Artist’s Eyes T2 - Intelligent Technologies for Interactive Entertainment: INTETAIN 2017, Funchal, Portugal, June 20-22, 2017, Proceedings Y1 - 2018 UR - https://doi.org/10.1007/978-3-319-73062-2_12 SN - 978-3-319-73061-5 U6 - https://doi.org/10.1007/978-3-319-73062-2_12 SP - 142 EP - 145 PB - Springer International Publishing CY - Cham ER - TY - JOUR A1 - Möllmann, Anne A1 - Hunger, Antje A1 - Dusend, Christina A1 - van den Hout, Marcel A1 - Buhlmann, Ulrike T1 - Gazing at facial features increases dissociation and decreases attractiveness ratings in non-clinical females - A potential explanation for a common ritual in body dysmorphic disorder JF - PloS one N2 - Rituals, such as gazing at faces, are common in body dysmorphic disorder (BDD) and appear in cognitive-behavioral models as a maintaining factor. Rituals are also common in obsessive-compulsive disorder (OCD). In contrast to OCD, the proposed associations between rituals and intrusive thoughts/appearance preoccupation have not been empirically investigated for BDD. We examined if the assumed effect of gazing rituals on attractiveness ratings exists and if it is associated with dissociation. In an experiment, we asked N = 65 non-clinical females to focus on the nose of a photographed face at pre- and post-test. In between, participants gazed at the nose of either the same (relevant gazing) or another face (irrelevant gazing). We found increasing dissociation after gazing in both conditions and a differentially stronger decrease of attractiveness ratings in the relevant gazing condition. Our findings support the hypothesized effect of gazing rituals on attractiveness evaluation in cognitive-behavioral models for BDD. Y1 - 2019 U6 - https://doi.org/10.1371/journal.pone.0219791 VL - 14 IS - 7 PB - PLoS ER - TY - JOUR A1 - Möllmann, Anne A1 - Hunger, Antje A1 - Schulz, Claudia A1 - Wilhelm, Sabine A1 - Buhlmann, Ulrike T1 - Gazing rituals in body dysmorphic disorder JF - Journal of behavior therapy and experimental psychiatry KW - FBSK_Webseite Y1 - 2020 U6 - https://doi.org/10.1016/j.jbtep.2019.101522 VL - 68 PB - Elsevier ER - TY - JOUR A1 - Eckhardt, Jennifer A1 - Kaletka, Christoph A1 - Pelka, Bastian A1 - Unterfrauner, Elisabeth A1 - Voigt, Christian A1 - Zirngiebl, Marthe T1 - Gender in the making: An empirical approach to understand gender relations in the maker movement JF - International Journal of Human-Computer Studies Y1 - 2021 U6 - https://doi.org/10.1016/j.ijhcs.2020.102548 SN - 1095-9300 VL - 145 IS - 102548 PB - Elsevier ER - TY - THES A1 - Versümer, Siegbert T1 - Generalized prediction of quiet indoor soundscapes based on retrospective and in-situ judgements N2 - This dissertation aims to enhance the understanding of how people perceive and react to everyday sounds, particularly in their homes. The focus is laid on indoor soundscapes and the interplay between acoustic measures, individual differences, and contextual factors. A retrospective online study and a field study at peoples’ homes based on the Experience Sampling Method were the ecologically valid ground truth for four key publications. These address significant gaps in soundscape research by providing insights into the factors influencing sound perception in real-life contexts, the evaluation of low-level (i.e., quiet) sounds, and the consequences of (in)appropriate statistical analysis of imbalanced hierarchical soundscape data. The studies reveal that the sound source category is a critical predictor of annoyance and the pleasantness of soundscapes, with different types of sounds (e.g., natural, human, technical) having distinct impacts. Contrary, the effect of acoustic measures like perceived and calculated loudness on sound perception was expected to be high but was masked by contextual factors. These were the perceived control over the acoustic situation and the affective state of a person in the specific situation, proving context-related perceptual measures to be more important than the sound itself. The research consequently highlights the need for automatic sound source identification in complex polyphony everyday sound environments and suggests that individual preferences and liking of sounds could be potential factors in predicting individual sound perception. The dissertation also emphasizes the importance of using appropriate statistical methods, including mixed-effects models and nonlinear regression techniques, to generate more generalizable and more valid results based on hierarchical and imbalanced soundscape data. The findings underscore the limitations of traditional acoustic metrics and advocate for the use of time-series data to better capture the dynamic nature of everyday sound environments in contrast to stimuli typically used in laboratory studies. The author further developed a multi-objective function for avoiding both over- and underfitting during hyperparameter tuning, significantly improving generalized model fitting in soundscape research. Overall, this work contributes to the field of soundscape research by providing a comprehensive analysis of sound perception in indoor environments, highlighting the importance of context, individual differences, and advanced statistical methods in understanding and modeling soundscapes. Finally, future perspectives were discussed, such as the focus on individual preferences, experiences, and expectations for the improved prediction of individual sound perception. N2 - Diese Dissertation verbessert das Verständnis dafür, wie Menschen alltägliche Geräusche wahrnehmen. Der Schwerpunkt liegt dabei auf der Geräuschkulisse in Innenräumen und dem Zusammenspiel von (psycho-)akustischen Messgrößen, individuellen Unterschieden und kontextuellen Faktoren. Eine retrospektive Online-Studie und eine Feldstudie in Wohnräumen der Probanden bildeten die ökologisch valide Grundlage der vier Schlüsselpublikationen. Diese untersuchen Faktoren, die die Geräuschwahrnehmung in realen Kontexten beeinflussen, indem sie die Bewertung von Geräuschen und die Folgen einer (un-)angemessenen statistischen Analyse von unausgewogenen hierarchischen Soundscape-Daten betrachten. Die Studien zeigen, dass die Kategorie der Geräuschquelle ein entscheidender Prädiktor für die Belästigung und die Angenehmheit ist. Entgegen der Erwartung, dass akustische Messgrößen wie die wahrgenommene und berechnete Lautheit einen großen Einfluss auf die Geräuschwahrnehmung haben, zeigte sich jedoch, dass diese durch kontextbezogene Faktoren maskiert wurde. Dabei handelte es sich um die empfundene Kontrolle über die akustische Situation und den emotionalen Zustand einer Person in der spezifischen Situation, wobei sich kontextbezogene Wahrnehmungsmaße als wichtiger erwiesen als das Umgebungsgeräusch selbst. Die Untersuchung unterstreicht folglich die Notwendigkeit einer automatischen Identifizierung von Geräuschquellen in komplexen polyphonen alltäglichen Geräuschumgebungen und legt nahe, dass individuelle Vorlieben für bestimmte Klänge wichtige Faktoren bei der Vorhersage der individuellen Geräuschwahrnehmung sein könnten. Die Dissertation unterstreicht zusätzlich die Bedeutung der Verwendung geeigneter statistischer Methoden, einschließlich Modellen mit gemischten Effekten und nichtlinearen Regressionstechniken, um verallgemeinerungsfähigere Ergebnisse auf der Grundlage hierarchischer und unausgewogener Daten von Soundscape-Studien zu erzielen. Die Ergebnisse zeigen zudem die Grenzen akustischer und psychoakustischer Metriken auf und implizieren die Verwendung von Zeitreihendaten, um die dynamische Natur alltäglicher Geräuschumgebungen besser zu repräsentieren. Darüber hinaus entwickelte der Autor eine Mehrzieloptimierung zur Vermeidung von Über- und Unteranpassung beim Hyperparametertuning, wodurch die Anpassung verallgemeinerbarer Modelle erheblich verbessert wird. Insgesamt leistet diese Arbeit einen wesentlichen Beitrag, indem sie eine umfassende Analyse der Geräuschwahrnehmung in Innenräumen liefert und die Bedeutung von Kontext, individuellen Unterschieden und angemessenen statistischen Methoden für das Verständnis und die Modellierung von Soundscapes hervorhebt. Abschließend werden mögliche Zukunftsperspektiven erörtert, wie z. B. der Fokus auf individuelle Präferenzen, Erfahrungen und Erwartungen für eine verbesserte Vorhersage der individuellen Geräuschwahrnehmung. KW - Psychoakustik KW - Lautwahrnehmung KW - Lautstärke KW - Belästigung Y1 - 2025 U6 - https://doi.org/10.14279/depositonce-23962 PB - Berlin CY - Technische Universität Berlin 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 - JOUR A1 - Engel, Rebecca V. A1 - Kaluza, Stefan A1 - Oezaslan, Mehtap A1 - Peitz, Stephan T1 - German Catalysis Meeting - 50 Years and as Young as Ever JF - ChemCatChem Y1 - 2017 U6 - https://doi.org/10.1002/cctc.201700683 SN - 1867-3899 VL - 9 IS - 11 SP - 2018 EP - 2020 PB - Wiley ER - TY - JOUR A1 - Titus, Juliane A1 - Kaluza, Stefan A1 - Marschall, Roland T1 - German Catalysis on an International Scale in Weimar JF - ChemCatChem Y1 - 2014 U6 - https://doi.org/10.1002/cctc.201402266 SN - 1867-3899 VL - 6 IS - 6 SP - 1523 EP - 1525 PB - Wiley ER - TY - CHAP A1 - Virchow, Fabian T1 - Germany T2 - Routledge Handbook of Violent Extremism and Resilience KW - Rechtsradikalismus KW - Deutschland KW - Resilienz Y1 - 2023 SN - 9781003267102 U6 - https://doi.org/10.4324/9781003267102-13 SP - 168 EP - 180 PB - Routledge CY - London ET - 1 ER - TY - JOUR A1 - Migueles, Jairo H. A1 - Rowlands, Alex V. A1 - Huber, Florian A1 - Sabia, Séverine A1 - van Hees, Vincent T. T1 - GGIR: A Research Community–Driven Open Source R Package for Generating Physical Activity and Sleep Outcomes From Multi-Day Raw Accelerometer Data JF - Journal for the Measurement of Physical Behaviour Y1 - 2019 U6 - https://doi.org/10.1123/jmpb.2018-0063 SN - 2575-6605 VL - 2 IS - 3 SP - 188 EP - 196 PB - Human Kinetics ER - TY - CHAP A1 - Virchow, Fabian ED - Fischer, Jörg ED - Dunn, Kerry T1 - Globalization, Crisis, and Right-Wing Populism in Context T2 - Stifled Progress – International Perspectives on Social Work and Social Policy in the Era of Right-Wing Populism Y1 - 2019 SN - 9783847413233 SP - 59 EP - 70 PB - Verlag Barbara Budrich CY - Opladen ER - TY - CHAP A1 - Geiger, Christian A1 - Thiele, Simon A1 - Meyer, Laurid A1 - Meyer, Stefan A1 - Hören, Lutz A1 - Drochtert, Daniel ED - Reidsma, Dennis ED - Katayose, Haruhiro ED - Nijholt, Anton T1 - Goin’ Goblins - Iterative Design of an Entertaining Archery Experience T2 - Advances in Computer Entertainment. 10th International Conference, ACE 2013, Boekelo, The Netherlands, November 12-15, 2013. Proceedings Y1 - 2013 SN - 978-3-319-03160-6 U6 - https://doi.org/10.1007/978-3-319-03161-3_20 VL - 8253 SP - 284 EP - 295 PB - Springer International Publishing CY - Cham 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 - 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 - CHAP A1 - Becker, Martin A1 - Lippel, Jens A1 - Zielke, Thomas T1 - Gradient Descent Analysis: On Visualizing the Training of Deep Neural Networks T2 - VISIGRAPP 2019: Proceedings of the 14th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications : Prague, Czech Republic, February 25-27, 2019 Y1 - 2019 SN - 978-989-758-354-4 U6 - https://doi.org/10.5220/0007583403380345 VL - Volume: 3 SP - 338 EP - 345 PB - INSTICC ER - TY - INPR A1 - Yuwono, Steve A1 - Löppenberg, Marlon A1 - Schwung, Dorothea A1 - Schwung, Andreas T1 - Gradient-based Learning in State-based Potential Games for Self-Learning Production Systems T2 - arxiv N2 - In this paper, we introduce novel gradient-based optimization methods for state-based potential games (SbPGs) within self-learning distributed production systems. SbPGs are recognised for their efficacy in enabling self-optimizing distributed multi-agent systems and offer a proven convergence guarantee, which facilitates collaborative player efforts towards global objectives. Our study strives to replace conventional ad-hoc random exploration-based learning in SbPGs with contemporary gradient-based approaches, which aim for faster convergence and smoother exploration dynamics, thereby shortening training duration while upholding the efficacy of SbPGs. Moreover, we propose three distinct variants for estimating the objective function of gradient-based learning, each developed to suit the unique characteristics of the systems under consideration. To validate our methodology, we apply it to a laboratory testbed, namely Bulk Good Laboratory Plant, which represents a smart and flexible distributed multi-agent production system. The incorporation of gradient-based learning in SbPGs reduces training times and achieves more optimal policies than its baseline. KW - Machine Learning KW - Artificial Intelligence KW - Computer Science and Game Theory KW - Maschinelles Lernen KW - Künstliche Intelligenz KW - Spieltheorie Y1 - 2024 U6 - https://doi.org/10.48550/arXiv.2406.10015 PB - arxiv ER - TY - JOUR A1 - Shajahan, Mohamed Iqbal A1 - Benim, Ali Cemal T1 - Granular PCM based heat sink for electronics thermal management JF - Applied Thermal Engineering N2 - This study investigates aluminum heat sinks integrated with GR42 phase change material (PCM), aiming to enhance thermal inertia and stabilize device temperatures. This is important, since the increasing miniaturization and performance demands for electronic devices have led in a growing need for advanced thermal management systems capable of handling rapid transient loads. The novelty of the work lies in examining different heat sink layouts that optimize the heat dissipation capabilities of GR42 PCMs while minimizing size and weight for electronic cooling. The experimental testing was conducted using three configurations, namely no fin, circular fin and hexagonal fin, with three input powers (4 W, 8 W, and 12 W). The experimental results show that the hexagonal-fin heat sink, surface area is 25 % more than circular fins, exhibited superior thermal performance without significant variation in input power. Notably, the hexagonal-fin heat sink achieved the desired set point temperature of 55 ◦C in 33 % less time than the circular-fin design and 45 % less time than the heat sink without fins. Furthermore, the peak temperatures increased up to 21 % for circular fins. During the charging cycles, the enhancement ratios vary from 72 % and begin to narrow to 25 % during discharge cycles. The hexagonal-fin configuration also exhibited superior melting dynamics, completing the phase transition 44 % faster at higher input power than the circular fins, and established a thermal deviation of nearly 51 % less than finless heat sinks. These findings underscore the critical role of fin geometry and PCM integration in achieving uniform temperature distribution and improved energy storage efficiency. Overall, the hexagonal-fin heat sink with GR42 PCM shows strong potential as a passive cooling solution for low-power portable electronic devices. KW - Heat sinks KW - Portable electronic cooling KW - Latent heat storage KW - GR42 PCM KW - Hexagonal fin KW - Circular fin KW - HSD Publikationsfonds KW - DFG Publikationskosten Y1 - 2026 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-59649 SN - 1359-4311 VL - 286 PB - Elsevier 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 - RPRT A1 - Niemann, Jörg A1 - Bruckmann, Julian A1 - Krautzer, Florian T1 - Green City Deals: A study on the global warming potential of alternative urban transportation systems N2 - The population is growing constantly in urban areas. This results in an increasing demand for mobility solutions while it is also worldwide aimed to reduce greenhouse gas emissions. This paper summarizes the results of a comparative study concerning the greenhouse gas emissions (based on carbon footprint) caused by alternative urban passenger transportation systems. The emissions for the vehicles and their infrastructure are analyszed over the entire life cycle from manufacturing up to their end of life. An existing cable car sytem in La Paz, Bolivia was analysed and evaluated in comparison to other modes of transportation such as small busses, large busses and a tram. According to the system definitions and the considered balance framework the study shows that beside the use of the systems the materials and the manufacturing as well as the infrastructure have a significant impact on the total emissions over the life cycle. To put focus on the „true and real“ impacts to the society it is preferable to consider the measurement results in total absolute emissions. KW - Carbon footprint KW - urban mobility KW - cable car KW - bus KW - tram KW - transport planning KW - city planning Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-28972 CY - Düsseldorf ER - TY - CHAP A1 - Galle, Bo A1 - Arellano, Santiago A1 - Conde, Vladimir A1 - Pfeffer, Melissa A1 - Barsotti, Sara A1 - Stefansdottir, Gerður A1 - Bergsson, Baldur A1 - Bergsson, Bergur A1 - Ingvarsson, Thorgils A1 - Weber, Konradin T1 - Ground based measurements of the gas emission from the Holuhraun volcanic fissure eruption on Iceland 2014/2015 T2 - Geophysical Research Abstracts: EGU General Assembly 2015 N2 - The since 31 August 2014 ongoing volcanic eruption at Holuhraun on Iceland is by far the strongest source of sulfur dioxide in Europe over the last 230 years with sustained emission rates exceeding 100 000 ton/day. This gas emission severely affects local population and has become a concern also for air traffic. The eruption has in December continued at constant pace for 3.5 months. Three scenarios are envisaged for the future; (1) the eruption stops, (2) the fissure extends under the Vattnajökul glacier and (3) Bardarbunga volcano erupts. The two later scenarios will cause increased gas emission, severe ash emissions and extended flooding. Under the scope of the EU-project FUTUREVOLC, a project with 3.5 years duration, aiming at making Iceland a supersite for volcanological research as a European contribution to GEO, we are developing a version of the Scanning DOAS instrument that is adapted to high latitudes with low UV radiation and severe meteorological conditions. Since the first day of the eruption several of these novel instruments has been monitoring the SO2 emission from the eruption. Data from our instruments are still after 3.5 months the only sustained ground-based monitoring of this gas emission. A lot of work is however needed to sustain this operation at a very remote site and under severe field conditions. At the same time the very high concentrations in the gas plume, in combination with bad meteorological conditions require the development of novel methods to derive reliable flux estimates. In this presentation we will discuss the instrumental issues and present the latest version of the emission estimates made from our measurements. KW - Luftreinhaltung KW - Vulkanismus KW - Messtechnik KW - Schwefeldioxid Y1 - 2015 UR - https://web.archive.org/web/20240616051633/https://meetingorganizer.copernicus.org/EGU2015/EGU2015-1722-1.pdf N1 - Vortragsabstract VL - 17 PB - Copernicus CY - Göttingen ER - TY - JOUR A1 - Huber, Florian A1 - Käs, Josef A1 - Stuhrmann, Björn T1 - Growing actin networks form lamellipodium and lamellum by self-assembly JF - Biophysical Journal N2 - Many different cell types are able to migrate by formation of a thin actin-based cytoskeletal extension. Recently, it became evident that this extension consists of two distinct substructures, designated lamellipodium and lamellum, which differ significantly in their kinetic and kinematic properties as well as their biochemical composition. We developed a stochastic two-dimensional computer simulation that includes chemical reaction kinetics, G-actin diffusion, and filament transport to investigate the formation of growing actin networks in migrating cells. Model parameters were chosen based on experimental data or theoretical considerations. In this work, we demonstrate the system's ability to form two distinct networks by self-organization. We found a characteristic transition in mean filament length as well as a distinct maximum in depolymerization flux, both within the first 1-2 microm. The separation into two distinct substructures was found to be extremely robust with respect to initial conditions and variation of model parameters. We quantitatively investigated the complex interplay between ADF/cofilin and tropomyosin and propose a plausible mechanism that leads to spatial separation of, respectively, ADF/cofilin- or tropomyosin-dominated compartments. Tropomyosin was found to play an important role in stabilizing the lamellar actin network. Furthermore, the influence of filament severing and annealing on the network properties is explored, and simulation data are compared to existing experimental data. KW - Open Archive Y1 - 2008 UR - http://www.ncbi.nlm.nih.gov/pubmed/18708450 U6 - https://doi.org/10.1529/biophysj.108.134817 SN - 1542-0086 VL - 95 IS - 12 SP - 5508 EP - 5523 PB - Biophysical Society ER - TY - JOUR A1 - Grote, Wolfgang A1 - Kastsian, Darya A1 - Mönnigmann, Martin T1 - Guaranteed stability in optimal power generation dispatching under uncertainty JF - IEEE Transactions on Power Systems N2 - Stability and cost optimality of power generation and supply systems must not be considered independently from one another. Simple examples show that optimizing cost without considering stability may result in modes of operation that, while economically optimal, are unstable. We demonstrate that stability, robustness, and optimality can be considered systematically and simultaneously by combining bifurcation theory and nonlinear optimization. Essentially, the proposed method enforces a backoff distance between the optimal point of operation and operational or stability boundaries in the space of the optimization variables, where bifurcation theory is used to describe nonlinear stability boundaries. KW - Normal vector method KW - Power dispatch KW - Robust optimization KW - Stability KW - Unit commitment Y1 - 2013 U6 - https://doi.org/10.1109/TPWRS.2012.2207970 SN - 1558-0679 VL - 28 IS - 2 SP - 1103 EP - 1112 PB - IEEE ER - TY - JOUR A1 - Fischer, Peter C. A1 - Fassbach, Burkhard T1 - Guest Post: The German D&O Procurement Clause Revisited JF - The D&O Diary: A Periodic Journal Containing Items of Interest From the World of Directors & Officers Liability, With Occasional Commentary KW - Organhaftung KW - Vorstandsmitglied Y1 - 2024 UR - https://web.archive.org/web/20250417174603/https://www.dandodiary.com/2024/05/articles/d-o-insurance/guest-post-the-german-do-procurement-clause-revisited/ ER - TY - CHAP A1 - Voigt, Christian A1 - Mair, Sebastian A1 - Unterfrauner, Elisabeth ED - Bodrunova, Svetlana S. T1 - Hacking the Knowledge of Maker Communities in Support of 21st Century Education T2 - Internet Science Y1 - 2018 SN - 978-3-030-01436-0 U6 - https://doi.org/10.1007/978-3-030-01437-7_22 VL - Lecture Notes in Computer Science: 11193 SP - 286 EP - 299 PB - Springer International Publishing CY - Cham ER - TY - BOOK A1 - Huber, Florian T1 - Hands-on Introduction to Data Science with Python N2 - In today’s world, data is generated at an unprecedented pace, and our ability to harness it is changing the way we live, work, and even think. Data science, the interdisciplinary field that blends statistics, computer science, and domain-specific knowledge, empowers us to extract insights from this vast ocean of data. As data science becomes increasingly essential across various industries and sectors, there is a growing need for skilled professionals who can make sense of data and transform it into actionable information. This book is designed to give you a very broad and at the same time a very practical hands-on tour through the full spectrum of data science approaches KW - Data Science KW - Python (Programmiersprache) KW - Lehrmittel Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-49548 N1 - The DOI represents all versions, and will always resolve to the latest one. The online version of this book can be found here: https://florian-huber.github.io/data_science_course/book/intro.html All materials and source code to render the book can be found on GitHub: https://github.com/florian-huber/data_science_course PB - Zenodo ET - v0.21 ER - TY - RPRT A1 - Bhaiya, Madhur A1 - Jahr, Andreas A1 - Happel, Holger T1 - Harvesting-Combine-Flow Simulation Technique N2 - CFX 11.0 is a Computational Fluid Dynamics (CFD) program for simulating the behavior of systems involving fluid flow, heat transfer, and other related physical processes. It works by solving the equations of fluid flow (in a special form) over a region of interest, with specified (known) conditions on the boundary of that region. This tool is used here to analyse the straw cutter which is used to comminute the straw which is left standing in the field after stripper header has stripped the grains from the crops. Stripper Header is a new technique different to conventional harvester machines and it is still under development and testing. It works on the principle in which grains are first stripped off from the head of the standing crop which helps in much reduced intake freeing up the separation systems to handle a larger volume of grains. But with this, the new problem of the disposal of the long, uncut straw left after stripping of grains arose. So a straw cutter is used after the stripper header stage in this Combine Harvester, where the rotor is equipped with pressed steel blades and rotates towards the crop, i.e., it cuts and lifts the straw over the top. This technique is environment friendly because previously farmers would have to burn the long, uncut straw standing in the fields while in this case mulched straw can be used for min-till systems. This rotor based straw cutting machine is analysed here which helps us in increasing power efficiency and comminution rate and quality of cut straw particles. Here fluid flow simulation has been preferred over particle simulation: - CFX 10.0 tool is not very effective for particle simulation techniques and computation time is increased considerably. - It’s very hard to realize particle simulation in CFX 10.0 because we have to define size and properties of each particle and besides this wall conditions would have to be defined differently for every boundary. - Besides this, it’s hard to realize cutting effect with straw particles in CFX 10.0 which otherwise would be comminuted in real life conditions. - The results obtained from fluid simulation are validated using experimental results and found to be nearly the same which clearly contradicts any need of performing particle simulation. KW - Häckseln KW - Ernte KW - Stroh KW - Partikelstrom KW - CFD KW - chaff KW - harvesting KW - Particle flow KW - simulation KW - FHD Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-4239 CY - Düsseldorf ER - TY - JOUR A1 - Virchow, Fabian T1 - Hass-Rede-Freiheit – Medienhandeln der populistischen und extremen Rechten JF - Forschungsjournal Soziale Bewegungen N2 - Zunehmend werden Medien der extremen und populistischen Rechten als ‚Alternativmedien‘ bezeichnet; dieses politische Lager zielt unter dem Banner des Eintretens für die Meinungsfreiheit auf eine Ausweitung des Sagbaren (z. B. Rassismus, Antisemitismus) und zugleich eine Einschränkung liberaler und demokratischer Positionen. Ein breites Spektrum an Strategien und kommunikative Arsenalen sowie die mit der AfD verfügbaren Ressourcen erlauben eine erhebliche Ausweitung der Reichweite. KW - Rechtsradikalismus KW - Hassrede KW - Meinungsfreiheit KW - Kommunikationsstrategie KW - FBSK_Webseite Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50575 SN - 2365-9890 VL - 38 IS - 1 SP - 55 EP - 69 PB - De Gruyter CY - Berlin, Boston ER - TY - JOUR A1 - Carapezza, M. L. A1 - Barberi, F. A1 - Ranaldi, M. A1 - Ricci, T. A1 - Tarchini, L. A1 - Barrancos, José A1 - Fischer, C. A1 - Granieri, D. A1 - Lucchetti, C. A1 - Melian, G. A1 - Perez, N. A1 - Tuccimei, P. A1 - Vogel, A. A1 - Weber, Konradin T1 - Hazardous gas emissions from the flanks of the quiescent Colli Albani volcano (Rome, Italy) JF - Applied Geochemistry KW - Luftreinhaltung Y1 - 2012 UR - https://doi.org/10.1016/j.apgeochem.2012.02.012 U6 - https://doi.org/10.1016/j.apgeochem.2012.02.012 VL - 27 IS - 9 SP - 1767 EP - 1782 PB - Elsevier 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 - Bleck, Christian ED - Schmitz, Daniela ED - Fiedler, Manfred ED - Becker, Heike ED - Habetur, Simone ED - Ortloff, Jan-Hendrik T1 - Healthy (Health-Equitable) Cities: Approaches to Participation and Inclusion in the Neighborhood T2 - Chronic Care – Science and Practice KW - FBSK_Webseite KW - Gesundheitsförderung KW - Prävention KW - Stadtviertel KW - Teilhabe KW - Gemeindeverwaltung Y1 - 2026 SN - 9783662722978 U6 - https://doi.org/10.1007/978-3-662-72298-5_50 SP - 403 EP - 413 PB - Springer Nature CY - Berlin, Heidelberg ER - TY - JOUR A1 - Yalçınkaya, Orhan A1 - Durmaz, Ufuk A1 - Tepe, Ahmet Ümit A1 - Benim, Ali Cemal A1 - Uysal, Ünal T1 - Heat and Flow Characteristics of Aerofoil-Shaped Fins on a Curved Target Surface in a Confined Channel for an Impinging Jet Array JF - Energies N2 - The main purpose of this investigation was to explore the heat transfer and flow characteristics of aero-foil-shaped fins combined with extended jet holes, specifically focusing on their feasibility in cooling turbine blades. In this study, a comprehensive investigation was carried out by applying impinging jet array cooling (IJAC) on a semi-circular curved surface, which was roughened using aerofoil-shaped fins. Numerical computations were conducted under three different Reynolds numbers (Re) ranging from 5000 to 25,000, while nozzle-to-target surface spacings (S/d) ranged from 0.5 to 8.0. Furthermore, an assessment was made of the impact of different fin arrangements, single-row (L1), double-row (L2), and triple-row (L3), on convective heat transfer. Detailed examinations were performed on area-averaged and local Nusselt (Nu) numbers, flow properties, and the thermal performance criterion (TPC) on finned and smooth target surfaces. The study’s results revealed that the use of aerofoil-shaped fins and the reduction in S/d, along with surface roughening, led to significant increases in the local and area-averaged Nu numbers compared to the conventional IJAC scheme. The most notable heat transfer enhancement was observed at S/d = 0.5 utilizing extended jets and the surface design incorporating aerofoil-shaped fins. Under these specific conditions, the maximum heat transfer enhancement reached 52.81%. Moreover, the investigation also demonstrated that the highest TPC on the finned surface was achieved when S/d = 2.0 for L2 at Re = 25,000, resulting in a TPC value of 1.12. Furthermore, reducing S/d and mounting aerofoil-shaped fins on the surface yielded a more uniform heat transfer distribution on the relevant surface than IJAC with a smooth surface, ensuring a relatively more uniform heat transfer distribution to minimize the risk of localized overheating. KW - Beschaufelung KW - Kühlung KW - aerofoil-shaped fin KW - impinging jet array KW - cooling of turbine blades KW - heat transfer uniformity KW - pin-fin row KW - Wärmeübertragung KW - Turbine Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46387 SN - 1996-1073 VL - 17 IS - 5 PB - MDPI ER - TY - JOUR A1 - Bhattacharyya, Suvanjan A1 - Chattopadhyay, Himadri A1 - Banerjee, Arnab A1 - Benim, Ali Cemal T1 - Heat transfer and flow field in a circular twisted channel JF - MATEC Web of Conferences Y1 - 2018 U6 - https://doi.org/10.1051/matecconf/201824001005 VL - 240 PB - edp sciences ER - TY - CHAP A1 - Bhattacharyya, Suvanjan A1 - Jain, Naman A1 - Bhatt, Tapasvi A1 - Ghosh, Soumya A1 - Benim, Ali Cemal T1 - Heat Transfer Augmentation in a Mini-channel Using Magnetic Nanofluid and Magnetic Vortex T2 - Advances in Computational Heat and Mass Transfer: Proceedings of the 14th International Conference on Computational Heat and Mass Transfer (ICCHMT 2023), 4-8 September, 2023, Düsseldorf, Germany KW - Wärmeübertragung KW - Numerische Strömungssimulation KW - Laminare Strömung KW - Magnetische Flüssigkeit KW - Magnetischer Flussschlauch Y1 - 2024 SN - 9783031666087 U6 - https://doi.org/10.1007/978-3-031-66609-4_1 SN - 2195-4356 VL - 2 SP - 3 EP - 11 PB - Springer Nature CY - Cham ER - TY - JOUR A1 - Maqableh, A. M. A1 - Khadrawi, A. F. A1 - Nimr, M. AlA. A1 - Ammourah, S. A. A1 - Benim, Ali Cemal T1 - Heat transfer characteristics of parallel and counter flow micro-channel heat exchangers with varying wall resistance JF - Progress in Computational Fluid Dynamics, An International Journal Y1 - 2011 U6 - https://doi.org/10.1504/pcfd.2011.042183 VL - 11 IS - 5 PB - inderscience ER - TY - JOUR A1 - Frank, Lena A1 - Rödder, Maximilian A1 - Neef, Matthias A1 - Adam, Mario T1 - Heating, Ventilation, Domestic Appliances – an Energy Integrated System Concept for the Household of the Future JF - Energy Y1 - 2021 U6 - https://doi.org/10.1016/j.energy.2021.121303 SN - 0360-5442 VL - 234 PB - Elsevier ER - TY - JOUR A1 - Thomas, Tanja A1 - Virchow, Fabian T1 - Hegemonic listening and doing memory on right-wing violence: Negotiating German political culture in public spheres JF - Philosophy & Social Criticism N2 - The first section of this chapter illustrates that the pogrom in Rostock-Lichtenhagen in 1992 has not been categorized sufficiently as a substantial milestone of right-wing violence in postwar Germany. This pogrom led to historically significant limitations in the right to asylum, ultimately resulting in a change to the German constitution. We propose to look at Rostock-Lichtenhagen as an example to explain that practices of remembering right-wing violence, a process that we describe with the term ‘Doing Memory on right-wing violence’, is a central part of creating a society’s basic story. This basic story, in turn, contributes to how a society understands itself. In this chapter’s second section, we argue first that analyzing practices of memory of right-wing violence, be they acknowledging, forgetting or suppressing those practices, actually make it possible to even expose the persistence of the basic story as a central element of political culture. Second, we want to uncover how potential and publicly effective interventions of and changes to the basic story might look like. Here, we build on Habermas’ model of democracy, utilize Susan Bickford’s work on listening as an important element in her political philosophy and refer to Benjamin Barber, who articulates that a participatory democracy requires political listening. As a result, our chapter’s third section demonstrates how listening can be conceptualized from a supra-individual perspective and how questions that are critical of existing hegemonic structures can prioritize a focus on hegemonic (non)listening. Lastly, we will sketch out strategies to intervene in hegemonic (non)listening. These strategies connect theoretically with concepts of ‘counter publics’ and ‘opinion forming publics’ and reference, among others, the work of Seyla Benhabib and Iris Marion Young, thus enabling the creation and execution of resistance practices of Doing Memory on right-wing violence. KW - Rechtsradikalismus KW - Politische Gewaltanwendung KW - Rostock-Lichtenhagen KW - Kollektives Gedächtnis KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46532 SN - 0191-4537 VL - 50 IS - 1 SP - 102 EP - 124 PB - Sage ER - TY - JOUR A1 - Stelzmann, Daniela A1 - Çelik, Fatma A1 - Gerhold, Lars T1 - Help-seeking Behavior of Adolescents and Emerging Adults with Mental Health Problems During the COVID-19 Pandemic: A Scoping Review JF - Kindheit und Entwicklung: Zeitschrift für Klinische Kinderpsychologie N2 - Theoretical Background: The COVID-19 pandemic has negatively impacted the mental health of many adolescents and emerging adults (A and EA). Studies from before the COVID-19 pandemic document that A and EA with mental health problems rarely seek help. At the same time, studies suggest that the COVID-19 pandemic and the associated framework conditions also negatively impacted the help-seeking process for A and EA. Objective: This study provides a research synthesis on A’s and EA’s help-seeking process (in particular, help-seeking behavior) during the COVID-19 pandemic and identifies potential influencing factors on the help-seeking process. Method: We conducted a scoping review in accordance with the framework proposed by Arksey and O’Malley (2005) and adhered to the PRISMA Extension for Scoping Reviews Guidelines (Tricco et al., 2018) while analyzing the content of primary studies examining the help-seeking process of A and EA with mental health problems during the COVID-19 pandemic. Results: Fourteen primary studies met the inclusion criteria. The synthesized data indicate that increased psychological stress during the COVID-19 pandemic did not automatically lead to increased help-seeking behavior. Furthermore, we identified several factors influencing help-seeking behavior, such as personal factors (e. g., gender), factors linked to the social environment (e. g., open conversation style within the family), and structural factors (e. g., prolonged waiting periods) that influenced the help-seeking process. Notably, many of these factors had already been identified in prepandemic studies (e. g., gender). Discussion and conclusion: We discuss the results concerning possible prevention measures. N2 - Theoretischer Hintergrund: Präpandemische Studien zeigen, dass Jugendliche (J) und junge Erwachsene (JE) mit psychischen Problemen nur selten Hilfe in Anspruch nehmen. Gleichzeitig deuten Studien darauf hin, dass die COVID-19-Pandemie und die damit verbundenen Rahmenbedingungen negativ auf den Hilfesuchprozess von J und JE eingewirkt haben. Fragestellung: Ziel der Studie ist es, eine Studiensynthese über den Hilfesuchprozess von J und JE während der COVID-19 Pandemie zu erstellen und dabei potenzielle Einflussfaktoren auf den Hilfesuchprozess zu identifizieren. Methode: Wir haben ein Scoping Review nach den PRISMA-Richtlinien durchgeführt, in dem Primärstudien, die den Hilfesuchprozess von J und JE mit psychischen Problemen während der COVID-19 Pandemie dokumentieren, synthetisiert wurden. Ergebnisse: Die Synthese der Primärstudien (k = 14) zeigt, dass die erhöhte psychische Belastung durch die COVID-19-Pandemie sich nicht automatisch in erhöhtem Hilfesuchverhalten widerspiegelt. Dabei konnten mehrere Einflussfaktoren auf den Hilfesuchprozess identifiziert werden (z. B. Geschlecht, Mental Health Literacy, Stigma), die bereits aus präpandemischen Phasen bekannt sind. Diskussion und Schlussfolgerung: Wir diskutieren die Ergebnisse im Hinblick auf mögliche Präventionsmaßnahmen. KW - COVID-19 KW - Jugend KW - Mentale Gesundheit KW - Heranwachsender KW - Hilfesuchprozess KW - Scoping Review KW - FBSK_Webseite KW - HSD Publikationsfonds Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44536 SN - 0942-5403 SP - 224 EP - 235 PB - Hogrefe ER - TY - JOUR A1 - Bayer, Markus A1 - Pabst, Andrea T1 - Heroes and victims: economies of entitlement after violent pasts JF - Peacebuilding KW - FBSK_Webseite Y1 - 2018 U6 - https://doi.org/10.1080/21647259.2017.1303868 N1 - The research for the article was conducted as part of the project ‘Nonviolent Resistance and Democratic Consolidation’ funded by the German Research Foundation. We would like to thank Benjamin T. Shannon, Peter Finkenbusch, Felix Bethke, Daniel Lambach and the two anonymous reviewers for commenting and editing. VL - 6 IS - 1 SP - 49 EP - 64 PB - Taylor & Francis ER - TY - CHAP A1 - Flasko, Matthias A1 - Pogscheba, Patrick A1 - Herder, Jens A1 - Vonolfen, Wolfgang T1 - Heterogeneous binocular camera-tracking in a Virtual Studio T2 - 8. Workshop Virtuelle und Erweiterte Realität der GI-Fachgruppe VR/AR N2 - This paper presents a tracking of parts of a human body in a virtual TV studio environment. The tracking is based on a depth camera and a HD studio camera and aims at a realistic interaction between the actor and the computer generated environment. Stereo calibration methods are used to match corresponding pixels of both cameras (HD color and depth image). Hence the images were rectified and column aligned. The disparity is used to correct the depth image pixel by pixel. This image registration results in row and column aligned images where ghost regions are in the depth image resulting from occlusion. Both images are used to generate foreground masks with chroma and depth keying. The color image is taken for skin color segmentation to determine and distinguish the actor’s hands and face. In the depth image the flesh colored regions were used to determine their spatial position. The extracted positions were augmented by virtual objects. The scene is rendered correctly with virtual camera parameters which were calculated from the camera calibration parameters. Generated computer graphics with alpha value are combined with the HD color images. This compositing shows interaction with augmented objects for verification. The additional depth information results in changing the size of objects next to the hands when the actor moves around. KW - virtual studio KW - camera-tracking KW - VSVR Y1 - 2011 CY - Wedel ER - TY - JOUR A1 - Kaluza, Stefan A1 - Schröter, Marie Katrin A1 - Naumann d'Alnoncourt, Raoul A1 - Reinecke, Thomas A1 - Muhler, Martin T1 - High Surface Area ZnO Nanoparticles via a Novel Continuous Precipitation Route JF - Advanced Functional Materials Y1 - 2008 U6 - https://doi.org/10.1002/adfm.200800457 SN - 1616-3028 N1 - The authors gratefully acknowledge fruitful discussions with Malte Behrens and Robert Schlögl, and financial support by the BMBF (Bundesministerium für Bildung und Forschung, project 01RI05028 “Entwicklung von Methanolsynthesekatalysatoren als Basis für nachhaltige Ressourcennutzung”). Supporting Information is available online from Wiley InterScience or from the author. VL - 18 IS - 22 SP - 3670 EP - 3677 ER - TY - JOUR A1 - Fleiger, P. M. A1 - Reichardt, Roland A1 - Treiber, K. T1 - High-Precision Power Measurement for the Grindability Test According to Zeisel JF - Chemical Engineering & Technology Y1 - 2012 U6 - https://doi.org/10.1002/ceat.201200118 VL - 35 IS - 11 SP - 1941 EP - 1948 PB - Wiley ER - TY - JOUR A1 - Barbashov, Maksim A1 - Gellings, Markus A1 - Özen, Semih A1 - Jahr, Andreas T1 - High-speed wear tests on mower blade from various manufactures using the wear pot methode JF - Agricultural engineering.eu N2 - Rotary mowers are ofen used for forage harvesting in agriculture, as this technology can achieve a high throughput. These knives are therefore exposed to high levels of wear and tear, and will also be ofen changed because of loss of material by bad cutting quality. Thatn is why it is interesting to save costs during manufacturing in spite of a correspondingly long service life. This research records the current manufacturing quality of the mower blades and examines how they behave in comparison. Based on the obtained results, further decisions on the methods, procedures and ways of extending the life of the disc mower blades should be proposed. For the investigations, a test bench based on a wear pot was used. The wear that occurs on the blade is determined using several parameters and compared accordingly. The parameters of the test setup determined as a result of the test can be used for further studies of wear resistance. N2 - Bei der Grünfutterernte in der Landwirtschaft werden häufig Scheibenmähwerke eingesetzt, um einen hohen Durchsatz zu erzielen. Die dabei eingesetzten Messer sind einem hohen Verschleiß ausgesetzt und werden häufig wegen Verschleiß gewechselt, was sich in einer schlechten Schnittqualität widerspiegelt. Daher ist es interessant, bereits im Produktionsprozess Kosten einzusparen, ohne dabei die Lebensdauer der Messer zu beeinträchtigen. Diese Studie erfasst die aktuelle Fertigungsqualität von Mähmessern und untersucht, wie sie sich im Vergleich verhalten. Anhand der Ergebnisse sollen weitere Entscheidungen über Methoden, Verfahren und Wege zur Verlängerung der Lebensdauer von Rotorklingen vorgeschlagen werden. Für die Untersuchungen wurde ein Prüfstand auf der Basis des Verschleißtopfverfahrens verwendet. Der am Messer auftretende Verschleiß wird anhand mehrerer Parameter ermittelt und entsprechend verglichen. Die aus den Untersuchungen gewonnenen Parameter können für weiterführende Verschleißuntersuchungen genutzt werden. KW - Disc mower blades KW - rotary mower KW - slurry pot KW - ellipse-fit method Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44709 SN - 2943-5641 VL - 79 IS - 2 SP - 95 EP - 115 PB - Kuratorium für Technik und Bauwesen in der Landwirtschaft e. V. (KTBL) ER - TY - CHAP A1 - Anton, Johan A1 - Nebel, Janine A1 - Froese, Christian A1 - Kleinschmidt, Ralph A1 - Quandt, Thomas A1 - Ruland, Holger A1 - Kaluza, Stefan A1 - Muhler, Martin ED - Ernst, Stefan T1 - Higher alcohol synthesis over Na-modified Co-Cu catalysts: Co2C formation and effect of surface composition T2 - Preprints of the DGMK-Conference "Synthesis Gas Chemistry", October 7 - 9, 2015, Dresden N2 - Cu–Co-based model catalysts were prepared by a sophisticated alkali-free synthesis method and tested in the conversion of synthesis gas to higher alcohols. MoO3-coated alumina was used as the support, providing both high specific surface area and strongly interacting sites for the deposition of the active metals. A bulk Cu/Co ratio of ~2 was found to be most suitable in terms of activity and product distribution. Surface enrichment of Mo for all samples was observed by XPS, which significantly influenced the performance of the catalysts. Mo was found to be both a structural and a chemical promoter. Strong metal–support interactions were further achieved by modification of alumina with magnesia. With 12 wt% Mg incorporated, the catalysts showed 40% total oxygenate selectivity including 11% selectivity to ethanol. Y1 - 2015 SN - 978-3-941721-56-2 VL - DGMK Tagungsbericht, 2015,2 PB - DGMK CY - Hamburg ER - TY - JOUR A1 - Groen, Jeroen P. A1 - Langelaar, Matthijs A1 - Sigmund, Ole A1 - Ruess, Martin T1 - Higher-order multi-resolution topology optimization using the finite cell method JF - International Journal for Numerical Methods in Engineering Y1 - 2017 U6 - https://doi.org/10.1002/nme.5432 SN - 1097-0207 VL - 110 IS - 10 SP - 903 EP - 920 PB - Wiley ER - TY - JOUR A1 - Nehr, Sascha A1 - Bohn, Birger A1 - Fuchs, Hendrik A1 - Hofzumahaus, Andreas A1 - Wahner, Andreas T1 - HO2 formation from the OH + benzene reaction in the presence of O2 JF - Physical Chemistry Chemical Physics KW - Luftreinhaltung Y1 - 2011 U6 - https://doi.org/10.1039/c1cp20334g SN - 1463-9076 VL - 13 IS - 22 PB - Royal Society of Chemistry (RSC) ER - TY - CHAP A1 - Dörries, Gundula A1 - Geiger, Christian A1 - Lehmann, Anke A1 - Wegstein, Andrea ED - Villar, Nicolas ED - Izadi, Shahram ED - Fraser, Mike ED - Benford, Steve T1 - HorseIO - virtual riding lessons with a low-cost tangible horse interface T2 - Proceedings of the 3rd International Conference on Tangible and Embedded Interaction - TEI '09, 16.02.2009 - 18.02.2009, Cambridge Y1 - 2009 UR - http://portal.acm.org/citation.cfm?doid=1517664 SN - 9781605584935 U6 - https://doi.org/10.1145/1517664.1517708 PB - ACM Press CY - New York ER - TY - CHAP A1 - Krämer, Andreas A1 - Kalka, Regine ED - Khare, Anshuman ED - Stewart, Brian ED - Schatz, Rod T1 - How Digital Disruption Changes Pricing Strategies and Price Models BT - Digital Disruption’s Role in Business Model Transformation T2 - Phantom Ex Machina KW - Preispolitik KW - Marketing Y1 - 2017 UR - http://link.springer.com/10.1007/978-3-319-44468-0_6 SN - 978-3-319-44467-3 SN - 978-3-319-44468-0 U6 - https://doi.org/10.1007/978-3-319-44468-0_6 SP - 87 EP - 103 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Karnop, Christoph A1 - Steffens, Jochen ED - Ginsborg, Jane ED - Lamont, Alexandra T1 - How do personality traits influence the effect of listening to sad music on induced musical emotions? T2 - Proceedings of the 25th Anniversary Conference of the European Society for the Cognitive Sciences of Music (ESCOM): “The expressive interaction with music” (Ghent, Belgium) Y1 - 2017 CY - Ghent ER - TY - CHAP A1 - Greb, Fabian A1 - Schlotz, Wolff A1 - Steffens, Jochen ED - Burger, B. ED - Bamford, J. ED - Carlson, E. T1 - How do the functions of music listening vary across situations and persons? T2 - SysMus 2016: Proceedings of the International Conference of Students of Systematic Musicology 16: Programme, abstracts & proceedings Y1 - 2016 PB - Department of Music, University of Jyväskylä & Finnish Centre for Interdisciplinary Music Research CY - Jyväskylä ER - TY - JOUR A1 - Steffens, Jochen A1 - Blättermann, Patrick A1 - Sattler, Maximilian A1 - Tang, Kevin T1 - How does a credible voice sound? JF - The Journal of the Acoustical Society of America N2 - Credibility is a crucial social factor that influences people's perception and decision-making. This study explores the acoustic attributes that define credible speech compared to neutral and ironic speech. A custom-built German corpus was developed, containing speech samples recorded from amateurs to enhance ecological validity. The study extracted a broad set of audio features from these samples, employing recursive feature elimination to identify the most influential attributes. These were then analyzed using a machine-learning-supported multinomial logistic regression model. The results indicated significant differences in the acoustic features associated with credible speech compared to neutral and ironic speech. Key findings include the role of a higher energy level (1st mel-frequency cepstral coefficient) in credible compared to neutral and ironic speech and a higher speaking rate in both credible and ironic compared to neutral speech. Also, irony is characterized by more high-frequency content (mean spectral centroid) compared to credible or neutral speech. Gender differences in spoken irony involve a greater influence of speaking rate in women's speech, while high pitch plays a more significant role in men's speech. This research thus contributes to the understanding of how credibility is conveyed through speech and offers insights for applications in communication, media, and artificial intelligence. The study also highlights the methodological advancements made by incorporating a diverse range of acoustic features and employing a robust machine-learning framework. KW - Sprechen KW - Glaubwürdigkeit KW - Akustik Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-53133 SN - 1520-8524 VL - 157 IS - 5 SP - 3780 EP - 3792 PB - Acoustical Society of America ER - TY - GEN A1 - Steffens, Jochen A1 - Blättermann, Patrick A1 - Sattler, Maximilian A1 - Tang, Kevin T1 - How does a credible voice sound? [Project Repository] N2 - A project repository for the paper: Steffens, Blättermann, Sattler and Tang (2025, "How does a credible voice sound?"). It contains three components: the dataset, data analyses and the materials to elicit the speech data. KW - Sprechen KW - Glaubwürdigkeit KW - Akustik Y1 - 2025 UR - https://osf.io/mtcuh/ UR - https://opus4.kobv.de/opus4-hs-duesseldorf/frontdoor/index/index/docId/5313 U6 - https://doi.org/10.17605/OSF.IO/MTCUH PB - Open Science Framework ER - TY - CHAP A1 - Dräger, Paul A1 - Steffens, Jochen A1 - von Berg, Markus T1 - How Does Lombard Speech Behave When The Background Noise Level Decreases? [Vortrag] T2 - Fortschritte der Akustik - DAGA 2024, 18. - 21. März 2024, Hannover N2 - The Lombard Effect and its impact on human speech production, also known as ‘Lombard Speech’, have been investigated in numerous scientific studies. It is known that the intensity, but also the type of background noise can affect Lombard Speech. By contrast, the potential effect of a gradual reduction of the amplitude of the background noise has received little attention in previous research. To test for such an effect, we split 34 participants into couples and had them orally compare images. In the experimental condition, there was background noise (masker) whose amplitude was reduced from 70 to 50 dB(A) over a period of 100 seconds. Measures of speech production after this decay were compared to those of a reference condition in which the masker was constantly at 50 dB(A). We hypothesized that speech production due to prior exposure to a louder masker would show a stronger expression of Lombard Speech in the experimental compared to the reference condition. The results showed a significant difference regarding the level of the first formant F1 across conditions, but not regarding the overall dB(A) level. However, tendencies could be identified, which can serve as a basis for further investigations. Y1 - 2024 UR - https://pub.dega-akustik.de/DAGA_2024/files/upload/paper/135.pdf SN - 978-3-939296-22-5 SP - 1259 EP - 1262 PB - Deutsche Gesellschaft für Akustik e.V. CY - Berlin ER - TY - CHAP A1 - Elvers, Paul A1 - Steffens, Jochen T1 - How empowering music influences performance and risk-behavior in sports: a randomized controlled trial T2 - Proceedings of the Congress of the International Association of Empirical Aesthetics (Wien, Österreich) Y1 - 2016 CY - Wien ER - TY - JOUR A1 - Stuhlsatz, André ED - Fellbaum, Klaus T1 - HSVM - A SVM Toolkit for Segmented Speech Data JF - Studientexte zur Sprachkommunikation: Elektronische Sprachsignalverarbeitung 2007 KW - Spracherkennung Y1 - 2007 UR - https://web.archive.org/web/20250718065024/https://www.essv.de/pdf/2007_107_114.pdf SN - 978-3-940046-40-6 SN - 0940-6832 SP - 107 EP - 114 ER - TY - JOUR A1 - Steffens, Jochen A1 - Schulte-Fortkamp, Brigitte A1 - Becker-Schweitzer, Jörg T1 - Human-machine interaction as influencing factor of indoor soundscape evaluation JF - The Journal of the Acoustical Society of America Y1 - 2012 U6 - https://doi.org/10.1121/1.4708899 VL - 131 IS - 4 PB - AIP ER - TY - CHAP A1 - Wohlmacher, Bernhard A1 - Mertl, Fabian A1 - Klapperich, Holger A1 - Huldtgren, Alina ED - Ziefle, Martina ED - Mulvenna, Maurice ED - Maciaszek, Leszek T1 - Hybrid Ludo: Combination of a Tangible UI for Seniors and a Web-based Ludo Game T2 - Proceedings of the 8th International Conference on Information and Communication Technologies for Ageing Well and e-Health, April 23-25, 2022 Y1 - 2022 SN - 978-989-758-566-1 U6 - https://doi.org/10.5220/0011069500003188 SN - 2184-4984 SP - 283 EP - 290 PB - SciTePress ER - TY - BOOK A1 - Stuhlsatz, André T1 - Hybride Spracherkennung Eine HMM/SVM-Systemintegration Y1 - 2008 SN - 9783639100624 PB - VDM Verlag CY - Saarbrücken ER - TY - JOUR A1 - Maqableh, A. M. A1 - Ammourah, S. A. A1 - Khadrawi, A. F. A1 - Al-Nimr, M. A. A1 - Benim, Ali Cemal T1 - Hydrodynamics behaviour of a fluid flow in micro-venturi JF - Candian Journal of Physics Y1 - 2012 U6 - https://doi.org/10.1139/p11-145 VL - 90 IS - 1 SP - 83 EP - 89 PB - Canadian Science Publishing ER - TY - CHAP A1 - Geiger, Christian A1 - Fritze, Robin A1 - Lehmann, Anke A1 - Stöcklein, Jörg ED - Schmidt, Albrecht ED - Gellersen, Hans ED - van den Hoven, Elise ED - Mazalek, Ali ED - Holleis, Paul ED - Villar, Nicolas T1 - HYUI: a visual framework for prototyping hybrid user interfaces T2 - Proceedings of the 2nd international conference on Tangible and embedded interaction - TEI '08, 18.02.2008 - 20.02.2008, Bonn Y1 - 2008 UR - http://portal.acm.org/citation.cfm?doid=1347390 SN - 9781605580043 U6 - https://doi.org/10.1145/1347390.1347406 PB - ACM Press CY - New York ER - TY - CHAP A1 - Treskunov, Anastasia A1 - Gerhardt, Emil A1 - Nowottnik, David A1 - Fischer, Ben A1 - Gerhardt, Laurin A1 - Säger, Mitja A1 - Geiger, Christian ED - Alt, Florian ED - Bulling, Andreas ED - Döring, Tanja T1 - ICAROSmuIti - A VR Test Environment for the Development of Multimodal and Multi-User Interaction Concepts T2 - Proceedings of Mensch und Computer 2019, MuC'19: Mensch-und-Computer, Hamburg, 08.09.2019-11.09.2019 Y1 - 2019 UR - https://dl.acm.org/doi/proceedings/10.1145/3340764 SN - 9781450371988 U6 - https://doi.org/10.1145/3340764.3345379 SP - 909 EP - 911 PB - ACM CY - New York ER - TY - CHAP A1 - Voigt, Christian A1 - Misuraca, Gianluca A1 - Kucsera, Csaba A1 - Lipparini, Fiorenza T1 - ICT-enabled Social Innovations in Social Services: Mapping the Evidence T2 - 2016 Conference for E-Democracy and Open Government (CeDEM), 18.05.2016 - 20.05.2016, Krems, Austria Y1 - 2016 SN - 978-1-5090-1042-4 U6 - https://doi.org/10.1109/cedem.2016.15 SP - 105 EP - 114 PB - IEEE ER - TY - CHAP A1 - Breuer, Christopher A1 - Drees, Tim A1 - Echternacht, David A1 - Linnemann, Christian A1 - Moser, Albert T1 - Identification of potentials and locations for power-to-gas in germany T2 - 6. EUROSOLAR-Konferenz "Stadtwerke mit erneuerbaren Energien", 21.-22. Juni 2012, Heidelberg Y1 - 2012 SN - 978-3-00-037648-1 PB - Eurosolar CY - Berlin ER - TY - CHAP A1 - Siekmann, Leonard A1 - Steed, Clint Alex A1 - Mangaroo-Pillay, Mia A1 - Niemann, Jörg A1 - Fussenecker, Claudia T1 - Identifying the Industry 4.0 Skills Gap: A Comparative Analysis of Vocational Training in South Africa and Germany T2 - Advancing Learning Factories: Enabling Future-Ready Skills. Proceedings of the 15th Conference on Learning Factories 2025, Volume 1 KW - Industrie 4.0 KW - Berufliche Qualifikation KW - Deutschland KW - Südafrika Y1 - 2025 SN - 9783031988790 U6 - https://doi.org/10.1007/978-3-031-98880-6_26 SN - 2367-3370 VL - Lecture Notes in Networks and Systems, Bd. 1545 SP - 212 EP - 222 PB - Springer Nature CY - Cham ER - TY - CHAP A1 - Spiegel, Thomas ED - The International Centre for Sustainable Development of Energy, Water and Environment Systems, T1 - Imbalance reduction of energy balancing groups as a means of renewable energy expansion - Optiosn for an active energy balancing group management T2 - 12th Conference on Sustainable Development of Energy, Water and Environment Systems, 04.-08.10.2017, Dubrovnik Y1 - 2017 ER - TY - JOUR A1 - Kraus, Nicole A1 - Lindenberg, Julia A1 - Zeeck, Almut A1 - Kosfelder, Joachim A1 - Vocks, Silja T1 - Immediate Effects of Body Checking Behaviour on Negative and Positive Emotions in Women with Eating Disorders: An Ecological Momentary Assessment Approach JF - European eating disorders review : the journal of the Eating Disorders Association Y1 - 2015 U6 - https://doi.org/10.1002/erv.2380 VL - 23 IS - 5 SP - 399 EP - 407 PB - Wiley ER - TY - JOUR A1 - Mandal, Dipak Kumar A1 - Biswas, Nirmalendu A1 - Manna, Nirmal K A1 - Benim, Ali Cemal T1 - Impact of chimney divergence and sloped absorber on energy efficacy of a solar chimney power plant (SCPP) JF - Ain Shams Engineering Journal N2 - A numerical study is carried out meticulously to scrutinize the impact of different shapes of chimneys like circular (outer dia, dc), convergent (outer dia, 0.5dc), divergent (outer dia, 1.5dc), sudden contraction (outer dia, 0.5dc), and sudden expansion (outer dia, 1.5dc) on the performance of an SCPP. Furthermore, the parametric impact with different chimney divergence angles (CDA, ϕ), and ground absorber slope angle (GSA, γ) on the SCPP performance is also scrutinized. Optimum divergence angle (ϕ=+0.75◦) enhances the power generation up to ~ 47% (76 kW) with a horizontal ground absorber surface. An increase or decrease in CDA lessens the power generation. With a sloped ground absorber angle γ=0.6◦, the gain in power generation is 60% (82 kW). The study of combination of ground sloped absorber (γ=0.6◦) and divergent chimney (ϕ=+0.75◦) shows enhancement of the power generation upto 80% (92 kW) more than the classical Manzaranes plant. KW - Solar chimney power plant (SCPP) KW - Chimney divergence angle KW - Sloped absorber surface KW - Power generation KW - Efficiency KW - Regression analysis KW - DEAL KW - HSD Publikationsfonds Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-42410 SN - 2090-4495 PB - Elsevier ER - TY - JOUR A1 - Sidharth, K. Pillai A1 - Rajkumar, Mattacaud R. A1 - Chithrakumar, V. K. A1 - Asirvatham, Godson L. A1 - Benim, Ali Cemal A1 - Wogwises, Somchai T1 - Impact of increased outer wall rotation on convection in a vertical annulus with a stationary heated inner cylinder JF - Heat Transfer N2 - The interplay of centrifugal and buoyant forces on convective heat transfer in a vertical annulus formed by rotating adiabatic outer cylinder and stationary heated inner cylinder has been experimentally and numerically investigated. Experiments were performed for rotational speeds corresponding to the rotation parameter ζ in the range of 527 ≤ ζ ≤ 2860, maintaining the heat flux of the heated stationary inner cylinder as 80 W/m2, for radius ratio (η) and aspect ratio of the vertical annulus being 0.614 and 0.052, respectively. The problem was investigated numerically using the commercial computational fluid dynamics package, ANSYS CFX. The numerical methodology has been validated by comparing the numerically predicted average surface Nusselt number with experimentally obtained values. The comparison revealed an enhancement of the thermal performance of the heated stationary inner cylinder in the range 527 ≤ ζ ≤ 1190 due to the increase in turbulence intensity towards the heated inner cylinder. However, when the rotation parameter was increased further in the range 1190 ≤ ζ ≤ 2860, the thermal performance of the stationary heated inner cylinder showed only marginal improvement. The aforementioned thermal behavior of the inner heated stationary cylinder has been explored based on the flow statistics gathered from the numerical simulations. KW - Numerische Strömungssimulation KW - Nusselt-Zahl KW - Statischer Auftrieb KW - Zentrifugalkraft KW - Zylinder (Maschinenbau) KW - Wärmeübertragung Y1 - 2022 U6 - https://doi.org/10.1002/htj.22617 SN - 2688-4534 VL - 51 IS - 7 SP - 6656 EP - 6684 PB - Wiley ER - TY - CHAP A1 - Müller, Patrick A1 - Braun, Alexander A1 - Keuper, Margret T1 - Impact of realistic properties of the point spread function on classification tasks to reveal a possible distribution shift T2 - NeurIPS 2022: Workshop on Distribution Shifts: Connecting Methods and Applications, December 3rd, 2022, New Orleans, USA KW - chromatic aberration KW - corruption KW - Deep Neural Networks KW - Distribution Shift KW - MTF Y1 - 2022 UR - https://openreview.net/forum?id=r7WJpE3oy0 PB - NeurIPS CY - New Orleans ER - TY - JOUR A1 - Spiegel, Thomas T1 - Impact of Renewable Energy Expansion to the Balancing Energy Demand of Differential Balancing Groups JF - Journal of Sustainable Development of Energy, Water and Environment Systems N2 - The research addresses the present situation on the German electricity market caused by variable renewable energy sources. The increasing number of households with photovoltaic and battery storage systems and their impacts require special attention. These systems change the traditional electricity customer from the sole electricity consumer to an electricity producer and consumer in one person. These so-called prosumers differ in their actual electricity demand from the initially estimated electricity demand with standard load profile. This discrepancy results in deviations within a differential balancing group. Thereby, the main finding of this research is a significant higher balancing energy demand with the expansion of photovoltaic and battery storage systems. Hence, the standard load profile is particularly not suitable for differential balancing groups with a high penetration of solar systems and still less suitable for groups with solar and battery storage systems KW - Balance responsible party KW - Balancing energy KW - Differential balancing group KW - Electricity schedule registration KW - peer KW - Photovoltaic and battery storage systems KW - Prosumer KW - Standard load profile Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-29207 SN - 1848-9257 VL - 6 IS - 4 SP - 784 EP - 799 PB - SDEWES ER - TY - JOUR A1 - Eurich, Bernhard A1 - Klenzner, Thomas A1 - Oehler, Michael T1 - Impact of room acoustic parameters on speech and music perception among participants with cochlear implants JF - Hearing research Y1 - 2019 U6 - https://doi.org/10.1016/j.heares.2019.03.012 VL - 377 SP - 122 EP - 132 PB - Elsevier ER - TY - CHAP A1 - Suzuki, Kenji A1 - Nishoji, Yuji A1 - Herder, Jens T1 - Implementation of Aural Attributes for Simulation of Room Effects in Virtual Environments T2 - ACM Multimedia 2000 N2 - The audio design for virtual environments includes simulation of acoustical room properties besides specifing sound sources and sinks and their behavior. Virtual environments supporting room reverberation not only gain realism but also provide additional information to the user about surrounding space. Catching the different sound properties by the different spaces requires partitioning the space by the properties of aural spaces. We define soundscape and aural attributes as an application and multimedia content interface. Calculated data on an abstract level is sent to spatialization backends. Part of this research was the implementation of a device driver for the Roland Sound Space Processor. This device not only directionalizes sound sources, but also controls room effects like reverberation. KW - Acoustic displays KW - Aural attributes KW - Room effects KW - Virtual environments KW - VSVR Y1 - 2000 SP - 439 EP - 441 PB - ACM CY - Los Angeles ER - TY - JOUR A1 - Niemann, Jörg A1 - Basson, A. A1 - Fussenecker, Claudia A1 - Kruger, K. A1 - Schlösser, M. A1 - Turek, S. A1 - Amarnath, H. Umadevi T1 - Implementation of Eye-Tracking Technology in Holonic Manufacturing Systems JF - Procedia - Social and Behavioral Sciences Y1 - 2018 U6 - https://doi.org/10.1016/j.sbspro.2018.03.005 VL - 238 SP - 37 EP - 45 PB - Elsevier ET - SIM 2017: 14th International Symposium in Management, Challenges and Innovation in Management and Entrepreneurship} ER - TY - JOUR A1 - Heizmann, Michael A1 - Braun, Alexander A1 - Glitzner, Markus A1 - Günther, Matthias A1 - Hasna, Günther A1 - Klüver, Christina A1 - Krooß, Jakob A1 - Marquardt, Erik A1 - Overdick, Michael A1 - Ulrich, Markus T1 - Implementing machine learning: chances and challenges JF - at - Automatisierungstechnik Y1 - 2022 U6 - https://doi.org/10.1515/auto-2021-0149 SN - 2196-677X VL - 70 IS - 1 SP - 90 EP - 101 PB - De Gruyter CY - Berlin ER - TY - JOUR A1 - Noris, Federico A1 - Musall, Eike A1 - Salom, Jaume A1 - Berggren, Björn A1 - Jensen, Søren Østergaard A1 - Lindberg, Karen A1 - Sartori, Igor T1 - Implications of weighting factors on technology preference in net zero energy buildings JF - Energy and Buildings N2 - With the current movement towards Net Zero Energy Buildings (Net ZEBs) decisions regarding energy carrier weighting factors will have implications on which technologies could be favoured or disfavoured, and therefore adopted or not adopted, in the building sector of the near future. These implications should be taken into consideration by policy makers when developing legislation and regulations addressing the building sector. A parametric analysis was conducted on six buildings in Europe of different typologies and climates in order to assess how different weighting factors would impact the choice of technical systems to be installed. For each combination the amount of PV capacity necessary to achieve a net zero balance has been calculated and used as the main indicator for comparison; where less PV area means more favourable condition. The effect of including a solar thermal system is also discussed. With the current European national weighting factors, biomass boiler is largely the preferred solution, frequently achieving the balance with PV installed on the roof, while gas boiler is the most penalized. The situation changes when strategic weighting factors are applied. Lower weighting factors for electricity and district heating, e.g. reflecting national targets of increased penetration of renewables in such grids, would promote the use of heat pump and district heating, respectively. Asymmetric factors aimed at rewarding electricity export to the grid would facilitate the achievement of the zero balance for all technologies, promoting cogeneration in some cases. On the contrary, low weighting factors for electricity, e.g. reflecting a scenario of high decarbonisation of the power system, prove quite demanding; only few technical solutions would be able to reach the balance within the available roof area for PV, because of the low value credited to exported electricity. In this situation, the preferred solution would be heat pumps combined with solar thermal. In addition, the choice of weighting factors and the resulting favoured technologies will determine the temporal matching of load and generation. While all-electric solutions tend to use the grid as seasonal storage, other solutions will have a yearly net export of electricity to the grid to compensate for the supply of other (thermal) energy carriers. Therefore, it is important to consider the implications for the electricity grid resulting from the choice of weighting factors. KW - Label KW - Bilanzierung KW - Mismatch KW - Primärenergiefaktoren Y1 - 2014 U6 - https://doi.org/10.1016/j.enbuild.2014.07.004 VL - 82 SP - 250 EP - 262 PB - Elsevier ER - TY - CHAP A1 - Vierjahn, Tom A1 - Wöldecke, Björn A1 - Geiger, Christian A1 - Herder, Jens T1 - Improved Direction Signalization Technique Employing Vibrotactile Feedback T2 - 11th Virtual Reality International Conference, VRIC'2009 N2 - Vibrotactile feedback via body-worn vibrating belts is a common means of direction signalization - e.g. for navigational tasks. Consequently such feedback devices are used to guide blind or visually impaired people but can also be used to support other wayfinding tasks - for instance, guiding actors in virtual studio productions. Recent effort has been made to simplify this task by integrating vibrotactile feedback into virtual studio applications. In this work we evaluate the accuracy of an improved direction signalization technique, utilizing a body-worn vibrotactile belt with a limited number of tactors, and compare it to other work. The results from our user study indicate that it is possible to signalize different directions accurately, even with a small number of tactors spaced by 90°. KW - tactile feedback KW - direction signalization KW - wayfinding KW - human factors KW - FHD KW - VSVR Y1 - 2009 SN - 2-9515730-8-1 SP - 1 EP - 8 ER - TY - JOUR A1 - Eilert, Eva A1 - Rolf, Theresa A1 - Heumaier, Andreas A1 - Hollenberg, Cornelis P. A1 - Piontek, Michael A1 - Suckow, Manfred T1 - Improved processing of secretory proteins in Hansenula polymorpha by sequence variation near the processing site of the alpha mating factor prepro sequence JF - Journal of biotechnology N2 - The literature as well as databases are ambiguous about the exact start of human interleukin-6 (IL-6)--three possibilities for the initiation of the mature protein are described. These three variants of IL-6, different in the exact initiation of the mature protein (A28, P29, or V30), were expressed in Hansenula polymorpha using the Saccharomyces cerevisiae MFα prepro sequence instead of the homologous pre sequence. All three IL-6 variants were secreted but the processing by the Kex2 protease showed significant differences. V30-IL-6 showed correctly processed material but also a molecule species of higher molecular weight indicating incomplete processing of the MFα pro peptide. P29-IL-6 did not yield any correctly processed IL-6, instead only the unprocessed pro form was found in the culture supernatant. Only A28-IL-6 led to 100% correctly processed material. N-terminal sequencing of this material revealed a start at V30--obviously the first two amino acids (Ala28-Pro29) have been removed by a so far unknown protease. Thus expression of both A28-IL-6 and V30-IL-6 as MFα prepro fusion proteins resulted in the very same mature V30-IL-6, however, the ratio of correctly processed molecules was significantly higher in the case of A28-IL-6. The expression of an MFα prepro-interferon α-2a (IFNα-2a) fusion protein in H. polymorpha leads to about 50% correctly processed molecules and 50% misprocessed forms which contain part of the pro peptide at the N-termini. The insertion of A28 and P29 of IL-6 between the pro peptide and the start of the mature IFNα-2a led to correct processing and elimination of all high molecular weight isoforms observed in earlier experiments. Y1 - 2013 UR - http://www.ncbi.nlm.nih.gov/pubmed/22982399 U6 - https://doi.org/10.1016/j.jbiotec.2012.08.024 VL - 167 IS - 2 SP - 94 EP - 100 PB - Elsevier ER - TY - CHAP A1 - Schoop, Sven A1 - Hebisch, Erik A1 - Franz, Thomas ED - Galster, Matthias ED - Scandurra, Patrizia ED - Mikkonen, Tommi ED - Oliveira Antonino, Pablo ED - Nakagawa, Elisa Yumi ED - Navarro, Elena T1 - Improving Comprehensibility of Event-Driven Microservice Architectures by Graph-Based Visualizations T2 - Software Architecture : 18th European Conference, ECSA 2024, Luxembourg City, September 3–6, 2024 Y1 - 2024 SN - 9783031707964 U6 - https://doi.org/10.1007/978-3-031-70797-1_14 SN - 0302-9743 VL - Lecture Notes in Computer Science ; 14889 SP - 207 EP - 214 PB - Springer Nature CY - Cham ER - TY - JOUR A1 - Saffell, John A1 - Nehr, Sascha T1 - Improving Indoor Air Quality through Standardization JF - Standards N2 - Human beings experience a large fraction of their exposure to air pollutants in indoor environments. Air pollution is a large environmental health risk, and exposure to ambient air pollution and indoor air pollution contribute equally to the total number of fatalities worldwide. Although legislative authorities have established limit values for ambient outdoor air and stack emissions, there are inconsistent and variable national and regional limit values for gaseous substances and airborne particulate matter in the built environment (schools, homes, healthcare facilities, offices, and other public spaces). This lack of regulation is unsurprising, because indoor spaces are characterized by complex air chemistry, and their construction materials and types of activities vary significantly. The current understanding of indoor pollutants, including short-lived oxidants, degradation of VOCs, particle formation, and particle composition, is incomplete. It is necessary to identify and assess emerging pollutants and their toxicity, and to consider new consumer products and green construction materials and their impact on indoor air quality (IAQ). Learning from IAQ surveys and audit protocols, research methodologies should be regularized for cross-research comparisons. Some indoor air quality guidance and standards have been written, and several more are in development, with the international ISO 16000 series of indoor standards leading the way for improving indoor air data quality. The WHO has established some ambient air limit values which can mostly be translated into indoor limit values. The built environment needs to harmonize energy efficiency, thermal comfort and air quality standards and guidance. In this review, we discuss the next steps for improving international, regional and national standards and guidance, leading to better and more complete indoor air quality regulations. KW - indoor air quality KW - IAQ KW - air quality standards KW - air quality regulations KW - air quality guidance KW - indoor pollutants KW - IAQ survey KW - indoor air data quality KW - limit value KW - Luftreinhaltung Y1 - 2023 U6 - https://doi.org/10.3390/standards3030019 SN - 2305-6703 VL - 3 IS - 3 SP - 240 EP - 267 PB - MDPI ER - TY - CHAP A1 - Eliasson, J. A1 - Watson, I.M. A1 - Weber, Konradin T1 - In Situ Observations of Airborne Ash From Manned Aircraft T2 - Volcanic Ash KW - Luftreinhaltung Y1 - 2016 SN - 9780081004050 U6 - https://doi.org/10.1016/B978-0-08-100405-0.00009-4 SP - 89 EP - 98 PB - Elsevier ER - TY - JOUR A1 - Preciado López, Magdalena A1 - Huber, Florian A1 - Grigoriev, Ilya A1 - Steinmetz, Michel O. A1 - Akhmanova, Anna A1 - Dogterom, Marileen A1 - Koenderink, Gijsje H. T1 - In vitro reconstitution of dynamic microtubules interacting with actin filament networks JF - Methods in Enzymology Y1 - 2014 U6 - https://doi.org/10.1016/B978-0-12-397924-7.00017-0 SN - 1557-7988 VL - 540 SP - 301 EP - 320 PB - Elsevier ER - TY - CHAP A1 - Eversheim, Walter A1 - Deckert, Carsten A1 - Westekemper, Markus T1 - Increasing Efficiency through Integration of Freeform-Features into the CAD/CAM Chain T2 - Product Data Technology Europe 2000 Y1 - 2000 SP - 355 EP - 362 ER - TY - CHAP A1 - Jürjens, Jan A1 - Marchal, Loïc A1 - Ochoa, Martín A1 - Schmidt, Holger ED - France, Robert B. ED - Kuester, Jochen M. ED - Bordbar, Behzad ED - Paige, Richard F. T1 - Incremental Security Verification for Evolving UMLsec models T2 - Modelling Foundations and Applications: 7th European Conference, ECMFA 2011, Birmingham, UK, June 6 - 9, 2011 Proceedings KW - model element KW - security requirement KW - class diagram KW - evolution path KW - security property Y1 - 2011 UR - https://link.springer.com/chapter/10.1007/978-3-642-21470-7_5 SN - 978-3-642-21469-1 U6 - https://doi.org/10.1007/978-3-642-21470-7_5 VL - LNCS, 6698 SP - 52 EP - 68 PB - Springer CY - Berlin, Heidelberg ER - TY - JOUR A1 - Johanning, M. A1 - Braun, Alexander A1 - Timoney, N. A1 - Elman, V. A1 - Neuhauser, W. A1 - Wunderlich, Chr T1 - Individual addressing of trapped ions and coupling of motional and spin states using RF radiation JF - Physical review letters N2 - Individual electrodynamically trapped and laser cooled ions are addressed in frequency space using radio-frequency radiation in the presence of a static magnetic field gradient. In addition, an interaction between motional and spin states induced by an rf field is demonstrated employing rf optical double resonance spectroscopy. These are two essential experimental steps towards realizing a novel concept for implementing quantum simulations and quantum computing with trapped ions. Y1 - 2009 UR - http://www.ncbi.nlm.nih.gov/pubmed/19257664 U6 - https://doi.org/10.1103/PhysRevLett.102.073004 SN - 1079-7114 VL - 102 IS - 7 PB - American Physical Society ER - TY - CHAP A1 - Johanning, M. A1 - Braun, Alexander A1 - Elman, V. A1 - Wunderlich, Chr. A1 - Neuhauser, W. T1 - Individual Addressing with Trapped Yb+ Ions T2 - 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, 17.06.2007 - 22.06.2007, Munich, Germany Y1 - 2007 UR - http://ieeexplore.ieee.org/document/4386787/ SN - 978-1-4244-0930-3 U6 - https://doi.org/10.1109/CLEOE-IQEC.2007.4386787 PB - IEEE CY - München ER - TY - JOUR A1 - Nehr, Sascha A1 - Baus, Lukas A1 - Çınar, Hasan A1 - Elsen, Ingo A1 - Frauenrath, Tobias T1 - Indoor environmental quality assessment in passively ventilated classrooms in Germany and estimation of ventilation energy losses JF - Journal of Building Engineering KW - Indoor air quality KW - Indoor environmental quality KW - Energy-efficient ventilation KW - CO2 KW - PM2.5 KW - TVOC KW - Passive ventilation KW - Luftreinhaltung Y1 - 2024 U6 - https://doi.org/10.1016/j.jobe.2024.110937 SN - 2352-7102 VL - 97 PB - Elsevier ER - TY - CHAP A1 - Steffens, Jochen A1 - Himmelein, Hendrik T1 - Induced cognitive load influences unpleasantness judgments of modulated noise T2 - Proceedings of the 24th International Congress on Acoustics Y1 - 2022 CY - Gyeoungju, Südkorea ER - TY - CHAP A1 - Ludwig, Philipp A1 - Büchel, Joachim A1 - Herder, Jens A1 - Vonolfen, Wolfgang T1 - InEarGuide - A Navigation and Interaction Feedback System using In Ear Headphones for Virtual TV Studio Productions T2 - 9. Workshop Virtuelle und Erweiterte Realität der GI-Fachgruppe VR/AR N2 - This paper presents an approach to integrate non-visual user feedback in today's virtual tv studio productions. Since recent studies showed that systems providing vibro-tactile feedback are not sufficient for replacing the common visual feedback, we developed an audio-based solution using an in ear headphone system, enabling a talent to move, avoid and point to virtual objects in a blue or green box. The system consists of an optical head tracking system, a wireless in ear monitor system and a workstation, which performs all application and audio processing. Using head related transfer functions, the talent gets directional and distance cues. Past research showed, that generating reflections of the sounds and simulating the acoustics of the virtual room helps the listener to conceive the acoustical feedback, we included this technique as well. In a user study with 15 participants the performance of the system was evaluated. KW - Navigation KW - virtual TV KW - erweiterte Realität KW - VSVR KW - Virtual (TV) Studio Y1 - 2012 CY - Düsseldorf ER - TY - JOUR A1 - Senthur, N.S. A1 - Anand, C A1 - Ramesh Kumar, M A1 - Elumalai, P.V. A1 - Shajahan, Mohamed Iqbal A1 - Benim, Ali Cemal A1 - Nasr, Emad Abouel A1 - Hussein, H.M.A. A1 - Parthasarathy, M. T1 - Influence of cobalt chromium nanoparticles in homogeneous charge compression ignition engine operated with citronella oil JF - Energy Science & Engineering KW - General Energy KW - Safety, Risk, Reliability and Quality KW - DOAJ Y1 - 2022 U6 - https://doi.org/10.1002/ese3.1088 SN - 2050-0505 VL - 10 IS - 4 SP - 1251 EP - 1263 PB - Wiley ER - TY - JOUR A1 - Vansteenkiste, A. A1 - De Baerdemaeker, J. A1 - Chou, Kang Wei A1 - Stoll, H. A1 - Curcic, Michael A1 - Tyliszczak, T. A1 - Woltersdorf, G. A1 - Back, Christian H. A1 - Schütz, G. A1 - Van Waeyenberge, B. T1 - Influence of domain wall pinning on the dynamic behavior of magnetic vortex structures: Time-resolved scanning x-ray transmission microscopy in NiFe thin film structures JF - Physical Review B Y1 - 2008 U6 - https://doi.org/10.1103/PhysRevB.77.144420 SN - 1098-0121 VL - 77 IS - 14 PB - American Physical Society 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 - JOUR A1 - Petit, Y. A1 - Henin, S. A1 - Kasparian, J. A1 - Wolf, J. P. A1 - Rohwetter, P. A1 - Stelmaszczyk, K. A1 - Hao, Z. Q. A1 - Nakaema, W. M. A1 - Wöste, L. A1 - Vogel, A. A1 - Pohl, T. A1 - Weber, Konradin T1 - Influence of pulse duration, energy, and focusing on laser-assisted water condensation JF - Applied Physics Letters N2 - We investigate the influence of laser parameters on laser-assisted water condensation in the atmosphere. Pulse energy is the most critical parameter. Nanoparticle generation depends linearly on energy beyond the filamentation threshold. Shorter pulses are more efficient than longer ones with saturation at ∼1.5 ps. Multifilamenting beams appear more efficient than strongly focused ones in triggering the condensation and growth of submicronic particles, while polarization has a negligible influence on the process. The data suggest that the initiation of laser-assisted condensation relies on the photodissociation of the air molecules rather than on their photoionization. KW - Luftreinhaltung Y1 - 2011 U6 - https://doi.org/10.1063/1.3546172 SN - 0003-6951 VL - 98 IS - 4 PB - AIP Publishing ER - TY - JOUR A1 - Winter, Franziska Luise A1 - Diehl, Patrick A1 - Telaar, Pascal A1 - Watermann, Clara Maria A1 - Kaluza, Stefan A1 - Muhler, Martin A1 - Apfel, Ulf-Peter A1 - Zeidler-Fandrich, Barbara T1 - Influence of the catalyst precursor for cobalt on activated carbon applied in ammonia decomposition JF - Catalysis Today N2 - Ammonia is a key compound for storing and transporting green hydrogen. However, the efficient release of stored hydrogen through thermocatalytic ammonia decomposition is achievable only at temperatures around 600 °C, particularly with non-noble metal-based catalysts, which prove to be both ecologically and economically more feasible. In this study, electrically conductive activated carbon was selected as the catalyst support, chosen specifically for its suitability in achieving more energy-efficient direct reactor heating through the ohmic resistance of the catalysts. Cobalt salts were wet impregnated on activated carbon investigating the influence of different precursors (cobalt nitrate and cobalt acetate) and pyrolysis temperatures (400 °C and 600 °C) under N2 flow on the cobalt particle size and the incorporation of cobalt into the carbon matrix. TEM imaging and CO-chemisorption revealed well dispersed cobalt particles with sizes below 10 nm for the catalysts synthesized from the cobalt nitrate precursor. On the other hand, cobalt acetate led to about nine times larger Co agglomerates, which were partially detached from the carbon matrix. Moreover, this substantial difference in the Co particle size results in a significantly higher ammonia conversion for cobalt nitrate-based catalysts, achieving 94 % of ammonia conversion at 600 °C. Furthermore, the long-term stability test of the cobalt nitrate-based catalyst resulted in a slight deactivation of only 2 % ammonia conversion at 500 °C. KW - Katalyse KW - Ammoniak KW - Grüner Wasserstoff KW - Ammonia decomposition KW - Carbon supported cobalt KW - Synthesis design KW - Cobalt acetate KW - Cobalt nitrate KW - Resistance heating Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46600 SN - 0920-5861 VL - 429 PB - Elsevier ER - TY - JOUR A1 - Gille, Christoph A1 - Krüger, Christine A1 - Wéber, Júlia T1 - Influences of the far right on social work in Germany: systematic attacks and daily shifts JF - European Journal of Social Work T2 - Einflussnahmen der extremen Rechten auf die Soziale Arbeit in Deutschland: Systematische Angriffe und alltägliche Verschiebungen KW - Rechtsradikalismus KW - Sozialarbeit KW - FBSK_Webseite Y1 - 2022 U6 - https://doi.org/10.1080/13691457.2022.2063810 SN - 1369-1457 VL - 26 IS - 3 SP - 561 EP - 574 PB - Taylor & Francis ER - TY - CHAP A1 - Schmitt, Lothar M. A1 - Herder, Jens A1 - Bhalla, Subhash ED - Gorayska, Barbara ED - Nehaniv, Chrystopher L. ED - Marsh, Jonathon P. T1 - Information Retrieval and Database Architecture for Conventional Japanese Character Dictionaries T2 - Proceedings, Second International Conference on Cognitive Technology N2 - The cycle of abstraction-reconstruction which occurs as a fundamental principle in the development of culture and in cognitive processes is described and analyzed. This approach leads to recognition of boundary conditions for and directions of probable development of cognitive tools. It is shown how the transition from a conventional Japanese-English character dictionary to a multi-dimensional language database is an instance of such an abstraction-reconstruction cycle. The different phases of the design of a multi-dimensional language database based upon different computer software technologies are properly placed in this cycle. The methods used include the use of UNIX software tools, classical database methods as-well-as the use of search engines based upon full text search in this process. Several directions of application and extension for a multi-dimensional language database are discussed from the general point of view of an abstraction-reconstruction cycle. KW - abstraction-reconstruction cycle KW - database KW - dictionary KW - hypertext, search engine KW - retrieval methods KW - UNIX Y1 - 1997 SN - 0-8186-8084-9 SP - 200 EP - 217 PB - IEEE CY - Los Alamitos ER - TY - CHAP A1 - Marzi, Karoline A1 - Klapperich, Holger A1 - Huldtgren, Alina ED - Stolze, Markus ED - Loch, Frieder ED - Baldauf, Matthias ED - Alt, Florian ED - Schneegrass, Christina ED - Kosch, Thomas ED - Hirzle, Teresa ED - Sadeghian, Shadan ED - Draxler, Fiona ED - Bektas, Kenan ED - Lohan, Katrin ED - Knierim, Pascal T1 - Insights on Older Adults’ Willingness, Motives and Experiences regarding Participation in HCI research T2 - MuC '23: Proceedings of Mensch und Computer 2023, Rapperswil Switzerland, September 3 - 6, 2023 N2 - User-centered and Participatory Design approaches have become widespread within HCI, also when designing digital media for older adults. These methodologies are seen as crucial to adapt technology design to older people's needs and increase their acceptance of digital technology. Nevertheless, it is often difficult to reach a diverse group of older people, for instance, people with limited technology skills, limited mobility, or cognitive issues. In addition, gerontologists criticized lately how older people's participation unfolds in technology design projects, e.g. that people are pushed into the role of users. Little is known about the motivations and needs of older adults regarding their participation in HCI research. To close this gap, we conducted an online survey (N=46) and semi-structured interviews (N=8) focusing on motivations, willingness and experiences regarding participation. Results show that people are generally willing to participate due to interest in the topic, learning new things and social bonding. However, despite the conceptions within HCI that long-term engagement is crucial within participatory design, older people in the study preferred less commitment and more open formats. Y1 - 2023 SN - 979-8-4007-0771-1 U6 - https://doi.org/10.1145/3603555.3608540 SP - 432 EP - 436 PB - Association for Computing Machinery CY - New York ER - TY - JOUR A1 - Naraparaju, R. A1 - Lau, H. A1 - Lange, Martin A1 - Fischer, Christian A1 - Kramer, D. A1 - Schulz, U. A1 - Weber, Konradin T1 - Integrated testing approach using a customized micro turbine for a volcanic ash and CMAS related degradation study of thermal barrier coatings JF - Surface and Coatings Technology KW - Luftreinhaltung Y1 - 2018 U6 - https://doi.org/10.1016/j.surfcoat.2018.01.030 SN - 0257-8972 VL - 337 SP - 198 EP - 208 PB - Elsevier ER - TY - JOUR A1 - Yuwono, Steve A1 - Schwung, Andreas A1 - Schwung, Dorothea T1 - Integrating Deep Model-Based Learning With Modular State-Based Stackelberg Games for Self-Optimizing Distributed Production Systems JF - IEEE Transactions on Cybernetics KW - Intelligente Fertigung KW - Optimierung KW - Maschinelles Lernen KW - Deep Learning KW - Stackelberg-Duopol Y1 - 2025 U6 - https://doi.org/10.1109/TCYB.2025.3610707 SN - 2168-2267 PB - Institute of Electrical and Electronics Engineers (IEEE) 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 - CHAP A1 - Herder, Jens T1 - Interactive Content Creation with Virtual Set Environments T2 - Fourth International Conference on Human and Computer N2 - Digital broadcasting enables interactive \sc tv, which presents new challenges for interactive content creation. Besides the technology for streaming and viewing, tools and systems are under development that extend traditional \sc tv studios with virtual set environments. This presentation reviews current technology and describes the requirements for such systems. Interoperability over the production, streaming, and viewer levels requires open interfaces. As the technology allow more interaction, it becomes inherent difficult to control the quality of the viewers experience KW - VSVR KW - digital broadcasting Y1 - 2001 PB - University of Aizu CY - Aizu-Wakamatsu ER -