TY - JOUR A1 - Schmidt, Stefan A1 - Göbel, Christoph A1 - Nebel, Janine A1 - Wiesmann, Thomas A1 - Hamel, Christian A1 - Reinsdorf, Arne A1 - Wolf, Dorit A1 - Gehrmann, Stefan A1 - Tenhumberg, Nils A1 - Muhler, Martin A1 - Kaluza, Stefan T1 - Recent Developments in the Conversion of Synthesis Gas to Short-Chain Alcohols over Cu-Co-Based Catalysts JF - Chemie Ingenieur Technik Y1 - 2018 U6 - https://doi.org/10.1002/cite.201800023 SN - 1522-2640 VL - 90 IS - 10 SP - 1465 EP - 1475 PB - Wiley ER - TY - RPRT A1 - Auth, Diana A1 - Dierkes, Mirjam A1 - Leiber, Simone A1 - Leitner, Sigrid T1 - Reconciling employment and elderly care within the "adult worker model": typical arrangements of caring sons N2 - Reconciling work and family life is one of the main issues of welfare state policies in the fields of childcare and long-term care. On that account, policy and research are focused almost exclusively on women – often on the reconciliation of work and childbearing – and social policy at the state level. In our study, we concentrate on men who reconcile gainful employment with elderly care, and we include the company level – a level of analysis often neglected in traditional theoretical approaches and typologies of comparative welfare state research. In Germany, during the last decade, the share of sons who are responsible for taking care of their elderly relatives has remarkably increased. In our qualitative research, we carried out comparative case studies in eleven German companies. We conducted around 60 interviews with male employees caring for an elderly relative, as well as with members of the works councils and human resources departments in different kinds of companies. We analysed which familial, social, professional, legal as well as occupational resources are central for these men, how they cope with reconciling work and care, and which gaps in the welfare system they identify. Interestingly, the overwhelming majority of the caring sons claim not to have problems in reconciling work and care, although they spend significant time on caring. In this paper we try to explain this pattern by looking at their typical care arrangements. We found that while women tend to organise employment around care, men rather seem to organise care around their employment. Given the feminist critique of the “adult worker model” this is an interesting result and needs theoretical reflection. Do men have the solution to the care-blindness of the “adult worker model” without falling into the “cold modern model of care”? Which resources are mainly used in “adult worker care arrangements”? Where are the limits of the approach? N2 - Die Vereinbarkeit von Erwerbstätigkeit und Sorgearbeit ist ein wichtiges Handlungsfeld wohlfahrtsstaatlicher Politik. Vorhandene Studien nehmen dabei vorwiegend die Vereinbarkeit von Kindererziehung und Beruf durch Frauen in den Blick, und betrachten überwiegend staatliche Politiken. In dieser Studie geht es um Männer, die erwerbstätig sind und gleichzeitig pflegen. Wir beziehen dabei auch die betriebliche Ebene ein, eine Analyseperspektive, die in den theoretischen Ansätzen und Typologien der vergleichenden Wohlfahrtsstaatsforschung eher vernachlässigt wird. In Deutschland ist der Anteil der pflegenden Söhne in den letzten Jahren deutlich angestiegen. In unserer qualitativen Studien haben wir elf Betriebsfallstudien in deutschen Unternehmen durchgeführt und dabei rund 60 Interviews mit erwerbstätigen, pflegenden Männern sowie betrieblichen Interessenvertretungen der Beschäftigten und Personalabteilungen von Unternehmen geführt. Im Zentrum standen dabei betriebliche, familiäre, soziale und rechtliche Ressourcen der pflegenden Männer, deren Bewältigungsmuster bei der Vereinbarkeit von Pflege und Beruf sowie von ihnen identifizierte Lücken des wohlfahrtsstaatlichen Systems. Die überwiegende Mehrheit der pflegenden Söhne gibt dabei an, keine Vereinbarkeitsprobleme zu haben, obwohl sie beträchtliche Zeit mit den unterstützenden und pflegerischen Aufgaben verbringen. Im Aufsatz versuchen wir diesem Puzzle nachzugehen, indem wir typische Pflegearrangements herausarbeiten. Es zeigt sich, dass die hier untersuchten Söhne in der Regel die Pflege um ihre (Vollzeit-)Erwerbstätigkeit herum organisieren, während Frauen ihre Erwerbstätigkeit tendenziell nach der Pflege ausrichten. Vor dem Hintergrund der feministischen Kritik am "adult worker model" wird dies näher diskutiert: Haben die Männer etwa eine Lösung für die Blindheit des "adult workel models" für Sorgearbeit, ohne ins "cold modern model of care" zu verfallen? Welche Ressourcen werden in "adult worker care arrangements" vor allem genutzt? Wo liegen Grenzen dieses Ansatzes? T3 - Studies in Social Sciences and Culture. Aus der Forschung des Fachbereichs Sozial- und Kulturwissenschaften der HSD - 2 KW - Angehörigenpflege KW - Vereinbarkeit Pflege und Beruf KW - pflegende Männer KW - elderly care KW - reconciliation of work and care KW - caring men Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-10459 SN - 2509-6958 CY - Düsseldorf ER - TY - CHAP A1 - Becker, Martin A1 - Lippel, Jens A1 - Stuhlsatz, André T1 - Regularized Nonlinear Discriminant Analysis - An Approach to Robust Dimensionality Reduction for Data Visualization T2 - Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications, 27.02.2017 - 01.03.2017, Porto, Portugal Y1 - 2017 SN - 978-989-758-228-8 U6 - https://doi.org/10.5220/0006167501160127 SP - 116 EP - 127 PB - SCITEPRESS - Science and Technology Publications ER - TY - JOUR A1 - Deutsch, Thomas A1 - Reimes, Jan A1 - Fiebig, André A1 - Oehler, Michael T1 - Relevance of stimuli and test environment in the perceptual evaluation of car audio systems JF - Applied Acoustics KW - ISAVE Y1 - 2019 U6 - https://doi.org/10.1016/j.apacoust.2019.07.027 VL - 156 SP - 404 EP - 415 PB - Elsevier ER - TY - CHAP A1 - Huldtgren, Alina A1 - Vormann, Anja A1 - Geiger, Christian T1 - Reminiscence Map - Insights to Design for People with Dementia from a Tangible Prototype T2 - Proceedings of the 1st International Conference on Information and Communication Technologies for Ageing Well and e-Health, Lisbon, 20.05.2015 - 22.05.2015 Y1 - 2015 UR - http://www.scitepress.org/DigitalLibrary/Link.aspx?doi=10.5220/0005442702330242 SN - 978-989-758-102-1 U6 - https://doi.org/10.5220/0005442702330242 SP - 233 EP - 242 PB - SCITEPRESS - Science and Technology Publications ER - TY - CHAP A1 - Huldtgren, Alina A1 - Mertl, Fabian A1 - Vormann, Anja A1 - Geiger, Christian T1 - Reminiscence of People with Dementia Mediated by a Tangible Multimedia Book T2 - Proceedings of the International Conference on Information and Communication Technologies for Ageing Well and e-Health,, Rome, 21.04.2016 - 22.04.2016 Y1 - 2016 UR - http://www.scitepress.org/DigitalLibrary/Link.aspx?doi=10.5220/0005758801910201 SN - 978-989-758-180-9 U6 - https://doi.org/10.5220/0005758801910201 SP - 191 EP - 201 PB - SCITEPRESS - Science and Technology Publications ER - TY - JOUR A1 - Huldtgren, Alina A1 - Mertl, Fabian A1 - Vormann, Anja A1 - Geiger, Christian T1 - Reminiscence of People With Dementia Mediated by Multimedia Artifacts JF - Interacting with Computers Y1 - 2017 U6 - https://doi.org/10.1093/iwc/iwx005 VL - 29 IS - 5 SP - 679 EP - 696 PB - Oxford University Press ER - TY - JOUR A1 - Musall, Eike A1 - Voss, Karsten T1 - Renewable Energy Ratio in Net Zero Energy Buildings JF - REHVA Journal KW - Bilanzierung KW - Definitionsbeschrieb Y1 - 2014 UR - https://www.rehva.eu/rehva-journal/chapter/renewable-energy-ratio-in-net-zero-energy-buildings VL - 51 IS - 3 SP - 14 EP - 18 PB - REHVA ER - TY - CHAP A1 - Lehmann, Matthias A1 - Wittpahl, Christian A1 - Zakour, Hatem Ben A1 - Braun, Alexander ED - Haverkamp, Nils ED - Youngworth, Richard N. T1 - Resolution and accuracy of non-linear regression of PSF with artificial neural networks T2 - SPIE Optical Systems Design: Optical Instrument Science, Technology, and Applications, 2018, Frankfurt, Germany N2 - In a previous work we have demonstrated a novel numerical model for the point spread function (PSF) of an optical system that can efficiently model both experimental measurements and lens design simulations of the PSF. The novelty lies in the portability and the parameterization of this model, which allows for completely new ways to validate optical systems, which is especially interesting for mass production optics like in the automotive industry, but also for ophtalmology. The numerical basis for this model is a non-linear regression of the PSF with an artificial neural network (ANN). In this work we examine two important aspects of this model: the spatial resolution and the accuracy of the model. Measurement and simulation of a PSF can have a much higher resolution then the typical pixel size used in current camera sensors, especially those for the automotive industry. We discuss the influence this has on on the topology of the ANN and the final application where the modeled PSF is actually used. Another important influence on the accuracy of the trained ANN is the error metric which is used during training. The PSF is a distinctly non-linear function, which varies strongly over field and defocus, but nonetheless exhibits strong symmetries and spatial relations. Therefore we examine different distance and similarity measures and discuss its influence on the modeling performance of the ANN. Y1 - 2018 U6 - https://doi.org/10.1117/12.2313144 N1 - Preprint bei ArXiv verfügbar. VL - Proc. SPIE, Vol. 10695 IS - 106950C SP - 52 EP - 63 PB - International Society for Optics and Photonics CY - Frankfurt ER - TY - JOUR A1 - Lehmann, Matthias A1 - Wittpahl, Christian A1 - Zakour, Hatem Ben A1 - Braun, Alexander T1 - Resolution and accuracy of nonlinear regression of point spread function with artificial neural networks JF - Optical Engineering N2 - We had already demonstrated a numerical model for the point spread function (PSF) of an optical system that can efficiently model both the experimental measurements and the lens design simulations of the PSF. The novelty lies in the portability and the parameterization of this model, which allow for completely new ways to validate optical systems, which is especially interesting not only for mass production optics such as in the automotive industry but also for ophthalmology. The numerical basis for this model is a nonlinear regression of the PSF with an artificial neural network (ANN). After briefly describing both the principle and the applications of the model, we then discuss two optically important aspects: the spatial resolution and the accuracy of the model. Using mean squared error (MSE) as a metric, we vary the topology of the neural network, both in the number of neurons and in the number of hidden layers. Measurement and simulation of a PSF can have a much higher spatial resolution than the typical pixel size used in current camera sensors. We discuss the influence this has on the topology of the ANN. The relative accuracy of the averaged pixel MSE is below 10  −  4, thus giving confidence that the regression does indeed model the measurement data with good accuracy. This article is only the starting point, and we propose several research avenues for future work. Y1 - 2019 U6 - https://doi.org/10.1117/1.oe.58.4.045101 SN - 0091-3286 VL - 58 IS - 4 SP - 045101 PB - SPIE ER - TY - JOUR A1 - Johanning, M. A1 - Braun, Alexander A1 - Eiteneuer, D. A1 - Paape, C. A1 - Balzer, C. A1 - Neuhauser, W. A1 - Wunderlich, C. T1 - Resonance-enhanced isotope-selective photoionization of YbI for ion trap loading JF - Applied Physics B Y1 - 2011 UR - https://arxiv.org/pdf/0712.0969.pdf U6 - https://doi.org/10.1007/s00340-011-4502-7 SN - 1432-0649 VL - 103 IS - 2 SP - 327 EP - 338 PB - Springer Nature ER - TY - CHAP A1 - Strygulec, Sarah A1 - Müller, Dennis A1 - Meuter, Mirko A1 - Nunn, Christian A1 - Ghosh, Shamila A1 - Wöhler, Christian T1 - Road boundary detection and tracking using monochrome camera images T2 - 2013 16th International Conference on Information Fusion (FUSION) Y1 - 2013 SN - 978-605-86311-1-3 SP - 864 EP - 870 PB - IEEE ER - TY - CHAP A1 - Skoda, Sabrina A1 - Steffens, Jochen A1 - Becker-Schweitzer, Jörg T1 - Road traffic noise annoyance in domestic environments can be reduced by water sounds T2 - Proceedings of Forum Acusticum 2014 (Krakow), CD-ROM Y1 - 2014 CY - Krakow ER - TY - JOUR A1 - Becker, Martin A1 - Lippel, Jens A1 - Stuhlsatz, André A1 - Zielke, Thomas T1 - Robust dimensionality reduction for data visualization with deep neural networks JF - Graphical Models Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-26904 SN - 1524-0703 VL - 108 PB - Elsevier ER - TY - CHAP A1 - Reich, Marius A1 - Adam, Mario A1 - Gottschald, Jonas T1 - Robust Optimization of District Heating Networks Structure and Dimension combining Metamodels and Multi-Objective Optimization T2 - ECOS - 31th International Conference on Efficiency, Cost, Optimization, Simulation and Enviromental Impact of Energy Systems, 17.-21.06.2018, Guimaraes / Portugal KW - EnergyExpert Y1 - 2018 UR - https://www.researchgate.net/publication/325896757_Robust_Optimization_of_District_Heating_Networks_Structure_and_Dimension_combining_Metamodels_and_Multi-Objective_Optimization CY - Guimaraes ER - TY - JOUR A1 - Stuhrmann, Björn A1 - Huber, Florian A1 - Käs, Josef T1 - Robust organizational principles of protrusive biopolymer networks in migrating living cells JF - Plos One N2 - Cell migration is associated with the dynamic protrusion of a thin actin-based cytoskeletal extension at the cell front, which has been shown to consist of two different substructures, the leading lamellipodium and the subsequent lamellum. While the formation of the lamellipodium is increasingly well understood, organizational principles underlying the emergence of the lamellum are just beginning to be unraveled. We report here on a 1D mathematical model which describes the reaction-diffusion processes of a polarized actin network in steady state, and reproduces essential characteristics of the lamellipodium-lamellum system. We observe a steep gradient in filament lengths at the protruding edge, a local depolymerization maximum a few microns behind the edge, as well as a differential dominance of the network destabilizer ADF/cofilin and the stabilizer tropomyosin. We identify simple and robust organizational principles giving rise to the derived network characteristics, uncoupled from the specifics of any molecular implementation, and thus plausibly valid across cell types. An analysis of network length dependence on physico-chemical system parameters implies that to limit array treadmilling to cellular dimensions, network growth has to be truncated by mechanisms other than aging-induced depolymerization, e.g., by myosin-associated network dissociation at the transition to the cell body. Our work contributes to the analytical understanding of the cytoskeletal extension's bisection into lamellipodium and lamellum and sheds light on how cells organize their molecular machinery to achieve motility. KW - DOAJ Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34901 SN - 1932-6203 N1 - Funding: This work has been supported by the Leipzig Graduate College ‘‘GK 1097 InterNeuro - Interdisciplinary Approaches in Cellular Neuroscience’’ (http:// www.uni-leipzig.de/˜ineuro/) and the Graduate School ‘‘Leipzig School of Natural Sciences - Building with Molecules and Nano-objects (BuildMoNa)’’ (http://www. buildmona.de/). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. VL - 6 IS - 1 PB - Public Library of Science (PLoS) ER - TY - CHAP A1 - Wilczek, Tobias A1 - Steffens, Jochen A1 - Weinzierl, Stefan ED - Lautenbach, Margriet ED - Witew, Ingo B. ED - de Vries, Diemer ED - Hornikx, Maarten T1 - Room acoustics, soundscapes and customer satisfaction in restaurants – a field study T2 - Proceedings of the International Symposium on Room Acoustics (ISRA) 2019, Amsterdam, Netherlands. Y1 - 2019 SN - 978-90-9032895-9 U6 - https://doi.org/10.18154/RWTH-CONV-240148 SP - 854 EP - 857 PB - Nederlands Akoestisch Genootschap CY - Heerde ER - TY - JOUR A1 - Baekler, Peter A1 - Hehl, Friedrich W. T1 - ROTATING BLACK HOLES IN METRIC-AFFINE GRAVITY JF - International Journal of Modern Physics D Y1 - 2006 U6 - https://doi.org/10.1142/s0218271806008589 VL - 15 IS - 5 SP - 635 EP - 668 PB - World Scientific ER - TY - CHAP A1 - Franz, Thomas A1 - Staab, Steffen ED - Decker, Stefan ED - Park, Jack ED - Quan, Dennis ED - Sauermann, Leo T1 - SAM: Semantics Aware Instant Messaging for the Networked Semantic Desktop. revised and extended version T2 - Proceedings of the 1st Workshop On The Semantic Desktop. 4th International Semantic Web Conference Y1 - 2005 UR - http://www.thomas-franz.de/publications/franzstaab-sam.pdf N1 - This work is conducted with respect to the upcoming project Knowledge Sharing and Reuse across Media (X-Media), funded by the Information Society Technologies (IST) 6th Framework Programme. SP - 1 EP - 15 CY - Galway ER - TY - CHAP A1 - Franz, Thomas A1 - Saathoff, Carsten A1 - Gorlitz, Olaf A1 - Ringelstein, Christoph A1 - Staab, Steffen T1 - SEA: A Lightweight and Extensible Semantic Exchange Architecture T2 - 2nd Workshop on Innovations in Web Infrastructure. 15th International World Wide Web Conference, Edinburgh, Scotland Y1 - 2006 UR - https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.96.1639&rep=rep1&type=pdf SP - 1 EP - 7 CY - Edinburgh ER - TY - CHAP A1 - Franz, Thomas A1 - Saathoff, Carsten A1 - Görlitz, Olaf A1 - Ringelstein, Christoph A1 - Staab, Steffen T1 - SEA: Introducing the Semantic Exchange Architecture T2 - Demos and Posters of the 3rd European Semantic Web Conference (ESWC 2006), Budva, Montenegro, 11th - 14th June, 2006 KW - Poster Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?Poster UR - https://www.eswc2006.org/poster-papers/FP19-Franz.pdf CY - Budva ER - TY - CHAP A1 - Hatebur, Denis A1 - Heisel, Maritta A1 - Schmidt, Holger ED - Müller, Günter T1 - Security Engineering Using Problem Frames T2 - Emerging Trends in Information and Communication Security: International Conference, ETRICS 2006, Freiburg, Germany, June 6-9, 2006. Proceeding KW - security requirement KW - problem frames KW - security problem KW - security engineering KW - sequence diagram Y1 - 2006 UR - https://link.springer.com/chapter/10.1007/11766155_17 SN - 978-3-540-34640-1 U6 - https://doi.org/10.1007/11766155_17 VL - LNCS, 3995 SP - 238 EP - 253 PB - Springer CY - Berlin, Heidelberg ER - TY - JOUR A1 - Heeskens, Denise A1 - Aghaei, Pedram A1 - Kaluza, Stefan A1 - Strunk, Jennifer A1 - Muhler, Martin T1 - Selective oxidation of ethanol in the liquid phase over Au/TiO 2 JF - physica status solidi (b) Y1 - 2013 U6 - https://doi.org/10.1002/pssb.201248440 SN - 1521-3951 VL - 250 IS - 6 SP - 1107 EP - 1118 PB - Wiley ER - TY - JOUR A1 - Huber, Florian A1 - Käs, Josef T1 - Self-regulative organization of the cytoskeleton JF - Cytoskeleton N2 - Despite its impressive complexity the cytoskeleton succeeds to persistently organize itself and thus the cells' interior. In contrast to classical man-made machines, much of the cellular organization originates from inherent self-assembly and self-organization allowing a high degree of autonomy for various functional units. Recent experimental and theoretical studies revealed numerous examples of cytoskeleton components that arrange and organize in a self-regulative way. In the present review we want to shortly summarize some of the principle mechanisms that are able to inherently trigger and regulate the cytoskeleton organization. Although taken individually most of these regulative principles are rather simple with intuitively predictable consequences, combinations of two or more of these mechanisms can quickly give rise to very complex, unexpected behavior and might even be able to explain the formation of different functional units out of a common pool of available building blocks. Y1 - 2011 UR - http://www.ncbi.nlm.nih.gov/pubmed/21438165 U6 - https://doi.org/10.1002/cm.20509 SN - 1949-3592 N1 - Acknowledgment We would like to thank Dan Strehle for critical reading ofthis manuscript. This work was funded by the Leipzig School of Natural Sciences ‘‘BuildMoNa’’ as well as bythe Sa¨chsische Aufbaubank project number 13403 VL - 68 IS - 5 SP - 259 EP - 265 PB - Wiley ER - TY - THES A1 - Franz, Thomas T1 - Semantic Personal Information Management BT - Zugl.: Koblenz, Univ., Diss., 2010 Y1 - 2010 SN - 978-3-86853-706-2 PB - Universität Koblenz-Landau CY - München ER - TY - CHAP A1 - Daemen, Jeff A1 - Herder, Jens A1 - Koch, Cornelius A1 - Ladwig, Philipp A1 - Wiche, Roman A1 - Wilgen, Kai T1 - Semi-Automatic Camera and Switcher Control for Live Broadcast T2 - TVX '16 Proceedings of the ACM International Conference on Interactive Experiences for TV and Online Video, Chicago, Illinois, USA — June 22 - 24, 2016 N2 - Live video broadcasting requires a multitude of professional expertise to enable multi-camera productions. Robotic systems allow the automation of common and repeated tracking shots. However, predefined camera shots do not allow quick adjustments when required due to unpredictable events. We introduce a modular automated robotic camera control and video switch system, based on fundamental cinematographic rules. The actors' positions are provided by a markerless tracking system. In addition, sound levels of actors' lavalier microphones are used to analyse the current scene. An expert system determines appropriate camera angles and decides when to switch from one camera to another. A test production was conducted to observe the developed prototype in a live broadcast scenario and served as a video-demonstration for an evaluation. KW - automated robotic camera system KW - actor tracking KW - switcher control KW - scene analysis KW - film rules KW - automated shot control KW - Virtual (TV) Studio Y1 - 2016 UR - http://vsvr.medien.hs-duesseldorf.de/publications/tvx2016-rob-abstract.html SN - 978-1-4503-4067-0 U6 - https://doi.org/10.1145/2932206.2933559 SP - 129 EP - 134 PB - ACM CY - New York ER - TY - CHAP A1 - Gavriilidis, Alexandros A1 - Müller, Dennis A1 - Müller-Schneiders, Stefan A1 - Velten, Jörg A1 - Kummert, Anton T1 - Sensor system blockage detection for night time headlight control based on camera and radar sensor information T2 - 15th International IEEE Conference on Intelligent Transportation Systems (ITSC), 2012, 16-19 Sept. 2012, Anchorage, Alaska, USA Y1 - 2012 SN - 978-1-4673-3063-3 U6 - https://doi.org/10.1109/ITSC.2012.6338854 SP - 78 EP - 83 PB - IEEE CY - Piscataway ER - TY - CHAP T1 - Shaping sonic experiences in urban environments using Water Features T2 - Research Workshop Animating pedestrian zones in the sonic dimension KW - Vortrag Y1 - 2016 CY - Montreal, Kanada ER - TY - CHAP A1 - Herder, Jens A1 - Wilke, Michael A1 - Heimbach, Julia A1 - Göbel, Sebastian A1 - Marinos, Dionysios T1 - Simple Actor Tracking for Virtual TV Studios Using a Photonic Mixing Device T2 - 12th International Conference on Human and Computer N2 - Virtual TV studios use actor tracking systems for resolving the occlusion of computer graphics and studio camera image. The actor tracking delivers the distance between actor and studio camera. We deploy a photonic mixing device, which captures a depth map and a luminance image at low resolution. The renderer engines gets one depth value per actor using the OSC protocol. We describe the actor recognition algorithm based on the luminance image and the depth value calculation. We discuss technical issues like noise and calibration. KW - actor tracking KW - photonic mixing device KW - virtual studio KW - video processing KW - FHD KW - VSVR Y1 - 2009 CY - Hamamatsu / Aizu-Wakamatsu / Düsseldorf ER - TY - JOUR A1 - Junge Puring, Kai A1 - Piontek, Stefan A1 - Smialkowski, Mathias A1 - Burfeind, Jens A1 - Kaluza, Stefan A1 - Doetsch, Christian A1 - Apfel, Ulf-Peter T1 - Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications JF - Journal of visualized experiments : JoVE N2 - The rock material pentlandite with the composition Fe4.5Ni4.5S8 was synthesized via high temperature synthesis from the elements. The structure and composition of the material was characterized via powder X-ray diffraction (PXRD), Mössbauer spectroscopy (MB), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and energy dispersive X-ray spectroscopy (EDX). Two preparation methods of pentlandite bulk electrodes are presented. In the first approach a piece of synthetic pentlandite rock is directly contacted via a wire ferrule. The second approach utilizes pentlandite pellets, pressed from finely ground powder, which is immobilized in a Teflon casing. Both electrodes, whilst being prepared by an additive-free method, reveal high durability during electrocatalytic conversions in comparison to common drop-coating methods. We herein showcase the striking performance of such electrodes to accomplish the hydrogen evolution reaction (HER) and present a standardized method to evaluate the electrocatalytic performance by electrochemical and gas chromatographic methods. Furthermore, we report stability tests via potentiostatic methods at an overpotential of 0.6 V to explore the material limitations of the electrodes during electrolysis under industrial relevant conditions. Y1 - 2017 UR - http://www.ncbi.nlm.nih.gov/pubmed/28671654 U6 - https://doi.org/10.3791/56087 SN - 1940-087X IS - 124 PB - JoVE ER - TY - CHAP A1 - Müller, Patrick A1 - Braun, Alexander T1 - Simulating optical properties to access novel metrological parameter ranges and the impact of different model approximations T2 - 2022 IEEE International Workshop on Metrology for Automotive (MetroAutomotive), 4-6 July 2022 Y1 - 2022 SN - 978-1-6654-6689-9 U6 - https://doi.org/10.1109/MetroAutomotive54295.2022.9855079 SP - 133 EP - 138 PB - IEEE ER - TY - CHAP A1 - Mueller, Patrick A1 - Lehmann, Matthias A1 - Braun, Alexander T1 - Simulating tests to test simulation T2 - IS&T International Symposium on Electronic Imaging 2020: Autonomous Vehicles and Machines, 26 January 2020 — 30 January 2020, Burlingame, CA, USA Y1 - 2020 U6 - https://doi.org/10.2352/ISSN.2470-1173.2020.16.AVM-149 VL - 2020 IS - 16 PB - Society for Imaging Science and Technology ER - TY - CHAP A1 - Echternacht, David A1 - El Haouati, I. A1 - Schermuly, Rainer A1 - Meyer, F. ED - Schulz, Detlef T1 - Simulating the impact of e-mobility charging infrastructure on urban low-voltage networks. Postersession T2 - NEIS 2018: Conference on Sustainable Energy Supply and Energy Storage Systems. Hamburg, Deutschland, 20.09.-21.09.2018 Y1 - 2018 SN - 978-3-8007-4821-1 SP - 208 EP - 213 PB - VDE CY - Frankfurt am Main; Piscataway, NJ ER - TY - JOUR A1 - Glembin, Jens A1 - Adam, Mario A1 - Deidert, Jörn A1 - Jagnow, Kati A1 - Rockendorf, Gunter A1 - Wirth, Hans Peter T1 - Simulation and Evaluation of Different Boiler Implementations and Configurations in Solar Thermal Combi Systems JF - Energy Procedia KW - Kessel und große Solarthermieanlagen Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27350 N1 - Acknowledgements The work presented in this paper has been realized within the project “Integration von Heizkesseln in Wärmeverbundsysteme mit großen Solaranlagen“ (Integration of heating boilers in thermal energy distribution circuits with large solar systems), which has been funded by the German Ministry for Environment, Nature Conservation and Nu-clear Safety based on a decision of the German Federal Parliament (FKZ 0325958Z). Within the project, the authors developed a new boiler model for dynamic simulations and validated it against test rig and field data. Field measurements and additional system simulations have been used to analyze and evaluate the interaction of the solar thermal system and the boiler. The authors are grateful for the project support. The content of this publication is in the responsibility of the authors. VL - 30 SP - 601 EP - 610 PB - Elsevier ER - TY - CHAP A1 - Prusas, Benedik T1 - Simulation of Germany’s security of supply: long-term forecasting of electric load profiles using machine learning. T2 - ENERDAY 2022 - 16th international conference of energy economics and technology, 30.9.2022, Dresden KW - KiVi KW - Vortrag Y1 - 2022 PB - Technische Universität Dresden CY - Dresden ER - TY - JOUR A1 - Braun, Alexander A1 - Kornmesser, Christoph A1 - Beushausen, Volker T1 - Simultaneous spatial and spectral imaging of lasing droplets JF - Journal of the Optical Society of America N2 - We present an experimental technique that allows the simultaneous spatial imaging and spectral analysis of falling droplets that exhibit lasing. Single droplet investigations serve as, among other purposes, a preliminary study for spray and combustion researchers. The described setup provides a valuable tool for the evaluation of microdroplet investigations with laser-spectroscopic techniques that rely on laser-induced fluorescence (LIF) or similar spectroscopical phenomena. The emphasis is that both spatial and spectral information are obtained from single-shot images of a falling droplet. Furthermore, combining spatial imaging and a spatially resolving optical multichannel analyzer makes a pointwise rastering of the droplets spectrum possible. This allows for the (almost) unambiguous determination of sources of influence on the spectrum of these droplets-such as geometrical distortion and lasing, nondissolved tracer lumps, and similar phenomena. Although the focus is on the experimental technique itself, we supplement detailed studies of lasing in falling microdroplets. These results were obtained with the aim of developing a system for measuring temperature distributions in droplets and sprays. In the light of these results the practice of calibrating a droplets spectrum by use of a bulk liquid sample needs to be critically reviewed. Y1 - 2005 U6 - https://doi.org/10.1364/josaa.22.001772 SN - 0030-3941 VL - 22 IS - 9 SP - 1772 EP - 1779 PB - Optical Society of America ER - TY - JOUR A1 - Luizard, Paul A1 - Steffens, Jochen A1 - Weinzierl, Stefan T1 - Singing in different rooms: Common or individual adaptation patterns to the acoustic conditions? JF - The Journal of the Acoustical Society of America Y1 - 2020 U6 - https://doi.org/10.1121/10.0000715 N1 - Open Access Veröffentlichung VL - 147 IS - 2 PB - ASA ER - TY - CHAP A1 - Feitsch, Jochen A1 - Strobel, Marco A1 - Geiger, Christian ED - Reidsma, Dennis ED - Katayose, Haruhiro ED - Nijholt, Anton T1 - Singing Like a Tenor without a Real Voice 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_18 VL - 8253 SP - 258 EP - 269 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Greb, Fabian A1 - Schlotz, Wolff A1 - Steffens, Jochen ED - Ginsborg, Jane ED - Lamont, Alexandra T1 - Situational and dispositional influences on the functions of music listening 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 T1 - Situational and dispositional influences on the functions of music listening T2 - Proceedings of the 14th International Conference on Music Perception and Cognition (ICMPC), San Francisco (CA), USA KW - Functions of music Y1 - 2016 SN - 1-876346-65-5 ER - TY - JOUR A1 - Steffens, Jochen A1 - Steele, Daniel A1 - Guastavino, Catherine T1 - Situational and person-related factors influencing momentary and retrospective soundscape evaluations in day-to-day life JF - The Journal of the Acoustical Society of America KW - Habilitation KW - HB KW - ICA2019 KW - JASA2019 Y1 - 2017 U6 - https://doi.org/10.1121/1.4976627 VL - 141 IS - 3 SP - 1414 EP - 1425 PB - AIP ER - TY - CHAP A1 - Greb, Fabian A1 - Steffens, Jochen A1 - Schlotz, Wolff T1 - Situational influences on music selection behavior in daily life: An experience sampling study T2 - Proceedings of the 15th International Conference on Music Perception and Cognition (ICMPC), Graz, Austria. Y1 - 2018 CY - San Francisco, UA ER - TY - JOUR A1 - Schillinger, Dominik A1 - Ruess, Martin A1 - Zander, Nils A1 - Bazilevs, Yuri A1 - Düster, Alexander A1 - Rank, Ernst T1 - Small and large deformation analysis with the p- and B-spline versions of the Finite Cell Method JF - Computational Mechanics Y1 - 2012 U6 - https://doi.org/10.1007/S00466-012-0684-Z SN - 1432-0924 VL - 50 IS - 4 SP - 445 EP - 478 PB - Springer ER - TY - CHAP A1 - Echternacht, David A1 - Franken, Muriel A1 - Moser, Albert A1 - Geulen, Uwe A1 - Zimmer, Peter A1 - Feilhauer, Werner A1 - Schrieder, W. T1 - Smart Area Aachen - in field test of meter placement and state estimation algorithms for distribution grids T2 - 2015 IEEE PES Innovative Smart Grid Technologies Latin America (ISGT LATAM), 05.10.2015 - 07.10.2015, Montevideo Y1 - 2015 UR - http://ieeexplore.ieee.org/document/7381194/ SN - 978-1-4673-6605-2 U6 - https://doi.org/10.1109/ISGT-LA.2015.7381194 SP - 435 EP - 439 PB - IEEE ER - TY - CHAP A1 - Echternacht, David A1 - Fellhauer, W. A1 - Geulen, Uwe A1 - Schrieder, Werner A1 - Zimmer, Peter T1 - Smart Area Aachen - State Estimation in Distribution Grids T2 - Worls Smart Grid Forum 2013, Berlin, 23-25 September 2013 Y1 - 2013 SP - 1 EP - 6 CY - Berlin ER - TY - CHAP A1 - Irrgang, Melanie A1 - Steffens, Jochen A1 - Egermann, Hauke T1 - Smartphone-Assessed Movement Predicts Music Properties T2 - Proceedings of the 5th International Conference on Movement and Computing KW - Accelerometer KW - Music Information Retrieval KW - Smartphone Y1 - 2018 SN - 978-1-4503-6504-8 U6 - https://doi.org/10.1145/3212721.3212852 VL - ICPS SP - 1 EP - 4 PB - ACM CY - New York ER - TY - CHAP A1 - Schlotz, Wolff A1 - Greb, Fabian A1 - Steffens, Jochen T1 - Smartphones as research tools in ambulatory assessment: Effects of own or loan devices on adherence, response attrition, usability, and reactivity T2 - Proceedings of the 5th Conference of the Society for Ambulatory Assessment (SAA 2017), Luxembourg Y1 - 2017 CY - Luxembourg ER - TY - CHAP A1 - Lohmann, Sandra A1 - Ille, Fabian A1 - Adam, Mario T1 - Solar cooling in a hardware-in-the-loop test and pilot plant. Postersession A1 T2 - 5th International Conference Solar Air-Conditioning, 25.-27.09.2013, Bad Krozingen KW - Solare Kühlung Y1 - 2013 SN - 978-3-943891-21-8 ER - TY - JOUR A1 - Jain, V. K. A1 - Franz, J. H. T1 - Some Design Issues in Infrared Wireless Networks JF - IETE Technical Review Y1 - 2004 U6 - https://doi.org/10.1080/02564602.2004.11417161 VL - 21 IS - 5 SP - 335 EP - 343 PB - Taylor & Francis ER - TY - JOUR A1 - Farooq, Asma A1 - Ali, Ramzan A1 - Benim, Ali Cemal T1 - Soret and Dufour effects on three dimensional Oldroyd-B fluid JF - Physica A: Statistical Mechanics and its Applications Y1 - 2018 U6 - https://doi.org/10.1016/j.physa.2018.02.204 SN - 0378-4371 VL - 503 SP - 345 EP - 354 PB - Elsevier ER - TY - CHAP A1 - Skoda, Sabrina A1 - Steffens, Jochen A1 - Becker-Schweitzer, Jörg T1 - Sound Quality evaluation of acoustical environments with multiple sources T2 - Proceedings of Euronoise 2015, 31 May - 3 June, Maastricht Y1 - 2015 CY - Maastricht ER - TY - JOUR A1 - Struchholz, Holger A1 - Herder, Jens A1 - Leckschat, Dieter T1 - Sound radiation simulation of musical instruments based on interpolation and filtering of multi-channel recordings JF - Journal of the 3D-Forum Society N2 - With the virtual environment developed here, the characteristic sound radiation patterns of musical instruments can be experienced in real-time. The user may freely move around a musical instrument, thereby receiving acoustic and visual feedback in real-time. The perception of auditory and visual effects is intensified by the combination of acoustic and visual elements, as well as the option of user interaction. The simulation of characteristic sound radiation patterns is based on interpolating the intensities of a multichannel recording and offers a near-natural mapping of the sound radiation patterns. Additionally, a simple filter has been developed, enabling the qualitative simulation of an instrument’s characteristic sound radiation patterns to be easily implemented within real-time 3D applications. Both methods of simulating sound radiation patterns have been evaluated for a saxophone with respect to their functionality and validity by means of spectral analysis and an auditory experiment. KW - sound radiation pattern KW - audio interpolation KW - audio filtering KW - FHD KW - VSVR Y1 - 2006 VL - 20 IS - 1 SP - 41 EP - 47 ER - TY - CHAP A1 - Herder, Jens T1 - Sound Spatialization Framework: An Audio Toolkit for Virtual Environments T2 - First International Conference on Human and Computer, Aizu-Wakamatsu, September 1998 N2 - The Sound Spatialization Framework is a C++ toolkit and development environment for providing advanced sound spatialization for virtual reality and multimedia applications. The Sound Spatialization Framework provides many powerful display and user-interface features not found in other sound spatialization software packages. It provides facilities that go beyond simple sound source spatialization: visualization and editing of the soundscape, multiple sinks, clustering of sound sources, monitoring and controlling resource management, support for various spatialization backends, and classes for MIDI animation and handling. KW - sound spatialization KW - resource management KW - virtual environments KW - spatial sound authoring KW - user interface design KW - human-machine interfaces Y1 - 1998 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-788 CY - Aizu ER - TY - JOUR A1 - Herder, Jens T1 - Sound Spatialization Framework: An Audio Toolkit for Virtual Environments JF - Journal of the 3D-Forum Society N2 - The Sound Spatialization Framework is a C++ toolkit and development environment for providing advanced sound spatialization for virtual reality and multimedia applications. The Sound Spatialization Framework provides many powerful display and user-interface features not found in other sound spatialization software packages. It provides facilities that go beyond simple sound source spatialization: visualization and editing of the soundscape, multiple sinks, clustering of sound sources, monitoring and controlling resource management, support for various spatialization backends, and classes for MIDI animation and handling. Keywords: sound spatialization, resource management, virtual environments, spatial sound authoring, user interface design, human-machine interfaces KW - sound spatialization KW - resource management KW - virtual environments KW - spatial sound authoring KW - user interface design KW - human-machine interfaces Y1 - 1998 VL - 12 IS - 3 SP - 17 EP - 22 ER - TY - CHAP A1 - Herder, Jens A1 - Cohen, Michael T1 - Sound Spatialization Resource Management in Virtual Reality Environments T2 - ASVA’97 ‐- Int. Symp. on Simulation, Visualization and Auralization for Acoustic Research and Education N2 - In a virtual reality environment users are immersed in a scene with objects which might produce sound. The responsibility of a VR environment is to present these objects, but a system has only limited resources, including spatialization channels (mixels), MIDI/audio channels, and processing power. The sound spatialization resource manager controls sound resources and optimizes fidelity (presence) under given conditions. For that a priority scheme based on human psychophysical hearing is needed. Parameters for spatialization priorities include intensity calculated from volume and distance, orientation in the case of non-uniform radiation patterns, occluding objects, frequency spectrum (low frequencies are harder to localize), expected activity, and others. Objects which are spatially close together (depending on distance and direction) can be mixed. Sources that can not be spatialized can be treated as a single ambient sound source. Important for resource management is the resource assignment, i.e., minimizing swap operations, which makes it desirable to look-ahead and predict upcoming events in a scene. Prediction is achieved by monitoring objects’ speed and past evaluation values. Fidelity is contrasted for Zifferent kind of resource restrictions and optimal resource assignment based upon unlimited dynamic scene look-ahead. To give standard and comparable results, the VRML 2.0 specification is used as an application programmer interface. Applicability is demonstrated with a helical keyboard, a polyphonic MIDI stream driven animation including user interaction (user moves around, playing together with programmed notes). The developed sound spatialization resource manager gives improved spatialization fidelity under runtime constraints. Application programmers and virtual reality scene designers are freed from the burden of assigning and predicting the sound sources. Y1 - 1997 SP - 407 EP - 414 CY - Tokyo ER - TY - CHAP A1 - Garbe, Katharina A1 - Herbst, Iris A1 - Herder, Jens T1 - Spatial Audio for Augmented Reality T2 - 10th International Conference on Human and Computer N2 - Using spatial audio successfully for augmented reality (AR) applications is a challenge, but is awarded with an improved user experience. Thus, we have extended the AR/VR framework \sc Morgan with spatial audio to improve users orientation in an AR application. In this paper, we investigate the users’ capability to localize and memorize spatial sounds (registered with virtual or real objects). We discuss two scenarios. In the first scenario, the user localizes only sound sources and in the second scenario the user memorizes the location of audio-visual objects. Our results reflect spatial audio performance within the application domain and show which technology pitfalls still exist. Finally, we provide design recommendations for spatial audio AR environments. KW - spatial audio KW - augmented reality KW - sound interaction KW - FHD KW - VSVR Y1 - 2007 SP - 53 EP - 58 CY - Düsseldorf, Aizu-Wakamatsu ER - TY - JOUR A1 - Brummel, Mattis A1 - Müller, Patrick A1 - Braun, Alexander T1 - Spatial precision and recall indices to assess the performance of instance segmentation algorithms JF - Electronic Imaging KW - Space-Variance KW - Computer Vision KW - IoU KW - image perturbations Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-41552 SN - 2470-1173 VL - 34 IS - 16 SP - 1 EP - 6 PB - Society for Imaging Science and Technology ER - TY - JOUR A1 - Müller, Patrick A1 - Brummel, Mattis A1 - Braun, Alexander T1 - Spatial recall index for machine learning algorithms JF - London Imaging Meeting N2 - We present a novel metric Spatial Recall Index to assess the performance of machine-learning (ML) algorithms for automotive applications, focusing on where in the image which performance occurs. Typical metrics like intersection-over-union (IoU), precisionrecallcurves or average precision (AP) quantify the performance over a whole database of images, neglecting spatial performance variations. But as the optics of camera systems are spatially variable over the field of view, the performance of ML-based algorithms is also a function of space, which we show in simulation: A realistic objective lens based on a Cooke-triplet that exhibits typical optical aberrations like astigmatism and chromatic aberration, all variable over field, is modeled. The model is then applied to a subset of the BDD100k dataset with spatially-varying kernels. We then quantify local changes in the performance of the pre-trained Mask R-CNN algorithm. Our examples demonstrate the spatial dependence of the performance of ML-based algorithms from the optical quality over field, highlighting the need to take the spatial dimension into account when training ML-based algorithms, especially when looking forward to autonomous driving applications. Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-35657 SN - 0-89208-346-6 VL - 2021 IS - 1 SP - 58 EP - 62 PB - Society for Imaging Science and Technology ER - TY - JOUR A1 - Huber, Florian A1 - Ridder, Lars A1 - Verhoeven, Stefan A1 - Spaaks, Jurriaan H. A1 - Diblen, Faruk A1 - Rogers, Simon A1 - van der Hooft, Justin J. J. T1 - Spec2Vec: Improved mass spectral similarity scoring through learning of structural relationships JF - PLOS Computational Biology N2 - Spectral similarity is used as a proxy for structural similarity in many tandem mass spectrometry (MS/MS) based metabolomics analyses such as library matching and molecular networking. Although weaknesses in the relationship between spectral similarity scores and the true structural similarities have been described, little development of alternative scores has been undertaken. Here, we introduce Spec2Vec, a novel spectral similarity score inspired by a natural language processing algorithm-Word2Vec. Spec2Vec learns fragmental relationships within a large set of spectral data to derive abstract spectral embeddings that can be used to assess spectral similarities. Using data derived from GNPS MS/MS libraries including spectra for nearly 13,000 unique molecules, we show how Spec2Vec scores correlate better with structural similarity than cosine-based scores. We demonstrate the advantages of Spec2Vec in library matching and molecular networking. Spec2Vec is computationally more scalable allowing structural analogue searches in large databases within seconds. Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34687 UR - http://www.ncbi.nlm.nih.gov/pubmed/33591968 SN - 1553-7358 N1 - Data Availability Statement: The pre-processed, cleaned dataset with all positive ionization mode spectra can be downloaded from https://doi.org/10.5281/zenodo.3978118, the original raw data can be accessed from https://doi.org/10.5281/zenodo.3979010. Funding: J.J.J.v.d.H. acknowledges funding from an ASDI eScience grant, ASDI.2017.030, from the Netherlands eScience Center—NLeSC, www.esciencecenter.nl, The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. VL - 17 IS - 2 PB - Cold Spring Harbor Laboratory ER - TY - RPRT A1 - Herder, Jens T1 - Specification and Implementration of a Texture Synthesis Language N2 - Texturen können als Oberflächenstrukturen realer Objekt aufgefasst werden und sind Variationen in Farbe, Geometrie, Transparenz, usw.. Im Gegensatz zu Algorithmen für die künstliche Generierung von Texturen gibt es nur wenige Ansätze zu Textur-Synthese-Sprachen oder zu Hilfsmittel für die Textur-Beschreibung. Die bekannten Werkzeuge decken zudem jeweils nur Teilgebiete der Generierung ab. Mit HiLDTe (Hierachical Language for the Description of Textures) ist nun eine Sprache entwickelt worden, mit der möglichst alle bekannten Texturtypen beschrieben werden können. HiLDTe basiert auf einem am Fachgebiet GRIS entwickelten Texturmodell, in dem Texturen generische, eventuell komplex zusammengesetzte Objekte repräsentieren. Aufgabe dieser Arbeit war es nun, Konzepte für die Sprache HiLDTe zu entwickeln, eine entsprechende Grammatik aufzubauen und mit Hilfe der UNIX-Werkzeuge LEX und YACC einen Compiler zu implementieren, mit dem ein ausführbarer Zwischen-Code für die in HiLDTe spezifizierten Texturen erstellt wird. Y1 - 1990 PB - Technische Hochschule Darmstadt CY - Darmstadt ER - TY - CHAP A1 - Simsch, Jonathan A1 - Herder, Jens ED - Chisik, Yoram T1 - SpiderFeedback - Visual Feedback for Orientation in Virtual TV Studios T2 - ACE'14, 11th Advances in Computer Entertainment Technology Conference, ACM, Funchal, Portugal N2 - A visual and spatial feedback system for orientation in virtual sets of virtual TV studios was developed and evaluated. It is based on a green proxy object, which moves around in the acting space by way of four transparent wires. A separate unit controls four winches and is connected to an engine, which renders the virtual set. A new developed plugin registers a virtual object’s position with the proxy object which imitates the virtual object’s movement on stage. This will allow actors to establish important eye contact with a virtual object and feel more comfortable in a virtual set. Furthermore, interaction with the virtual object and its proxy can be realised through a markerless actor tracking system. Several possible scenarios for user application were recorded and presented to experts in the broadcast industry, who evaluated the potential of SpiderFeedback in interviews and by questionnaires. KW - Mixed reality KW - visual feedback KW - stage flight system KW - presentation assistance KW - VSVR KW - Virtual (TV) Studio Y1 - 2014 UR - https://dl.acm.org/citation.cfm?doid=2663806.2663830 SN - 978-1-4503-2945-3 U6 - https://doi.org/10.1145/2663806.2663830 N1 - Sie haben Zugriff auf den Volltext innerhalb des HSD Campus. PB - ACM CY - New York ER - TY - CHAP A1 - Kretschmar, Dominik A1 - Niemann, Jörg A1 - Müller, Felix ED - Yilmaz, Murat ED - Niemann, Jörg ED - Clarke, Paul ED - Messnarz, Richard T1 - Spin-Off Strategies of Established Companies Due to Digitalization and Disruption T2 - Systems, Software and Services Process Improvement Y1 - 2020 SN - 978-3-030-56440-7 U6 - https://doi.org/10.1007/978-3-030-56441-4_58 SP - 772 EP - 782 PB - Springer Nature Switzerland CY - Cham ER - TY - CHAP A1 - Virchow, Fabian ED - Schubart, Rikke ED - Virchow, Fabian T1 - Sporting Aces and the Military: Performance, Discipline, and Nationalism in the Fields of Honor T2 - War isn't hell, it's entertainment KW - Forena Y1 - 2009 SN - 978-0786435586 SP - 31 EP - 43 PB - McFarland & Company Publ. CY - Jefferson, N.C. ER - TY - CHAP A1 - Ryskeldiev, Bektur A1 - Igarashi, Toshiharu A1 - Zhang, Junjian A1 - Ochiai, Yoichi A1 - Cohen, Michael A1 - Herder, Jens T1 - Spotility: Crowdsourced Telepresence for Social and Collaborative Experiences in Mobile Mixed Reality T2 - ACM Conference on Computer Supported Cooperative Work and Social Computing (CSCW '18) N2 - Live video streaming is becoming increasingly popular as a form of interaction in social applications. One of its main advantages is an ability to immediately create and connect a community of remote users on the spot. In this paper we discuss how this feature can be used for crowdsourced completion of simple visual search tasks (such as finding specific objects in libraries and stores, or navigating around live events) and social interactions through mobile mixed reality telepresence interfaces. We present a prototype application that allows users to create a mixed reality space with a photospherical imagery as a background and interact with other connected users through viewpoint, audio, and video sharing, as well as realtime annotations in mixed reality space. Believing in the novelty of our system, we conducted a short series of interviews with industry professionals on the possible applications of our system. We discuss proposed use-cases for user evaluation, as well as outline future extensions of our system. KW - Groupware KW - Mixed reality KW - Mobile computing KW - Remote collaboration KW - Spatial media KW - M KW - FHD Y1 - 2018 UR - http://vsvr.medien.hs-duesseldorf.de/publications/cscw2018-spotility-abstract.html SN - 978-1-4503-6018-0 U6 - https://doi.org/10.1145/3272973.3274100 N1 - Zugriff auf den Volltext via ACM-Datenbank SP - 373 EP - 376 PB - ACM CY - New York ER - TY - JOUR A1 - Friedrich, Linus A1 - Loosen, Simon A1 - Liang, Ke A1 - Ruess, Martin A1 - Bisagni, Chiara A1 - Schröder, Kai-Uwe T1 - Stacking sequence influence on imperfection sensitivity of cylindrical composite shells under axial compression JF - Composite Structures Y1 - 2015 U6 - https://doi.org/10.1016/j.compstruct.2015.08.132 SN - 0263-8223 VL - 134 SP - 750 EP - 761 PB - Elsevier ER - TY - JOUR A1 - Gaida, Daniel A1 - Wolf, Christian A1 - Meyer, C. A1 - Stuhlsatz, André A1 - Lippel, Jens A1 - Bäck, T. A1 - Bongards, M. A1 - McLoone, S. T1 - State estimation for anaerobic digesters using the ADM1 JF - Water science and technology N2 - The optimization of full-scale biogas plant operation is of great importance to make biomass a competitive source of renewable energy. The implementation of innovative control and optimization algorithms, such as Nonlinear Model Predictive Control, requires an online estimation of operating states of biogas plants. This state estimation allows for optimal control and operating decisions according to the actual state of a plant. In this paper such a state estimator is developed using a calibrated simulation model of a full-scale biogas plant, which is based on the Anaerobic Digestion Model No.1. The use of advanced pattern recognition methods shows that model states can be predicted from basic online measurements such as biogas production, CH4 and CO2 content in the biogas, pH value and substrate feed volume of known substrates. The machine learning methods used are trained and evaluated using synthetic data created with the biogas plant model simulating over a wide range of possible plant operating regions. Results show that the operating state vector of the modelled anaerobic digestion process can be predicted with an overall accuracy of about 90%. This facilitates the application of state-based optimization and control algorithms on full-scale biogas plants and therefore fosters the production of eco-friendly energy from biomass. Y1 - 2012 U6 - https://doi.org/10.2166/wst.2012.286 VL - 66 IS - 5 SP - 1088 EP - 1095 PB - IWA Publishing ER - TY - JOUR A1 - Biedermann, Till M. A1 - Chong, Tze Pei A1 - Kameier, Frank A1 - Paschereit, Christian O. T1 - Statistical–Empirical Modeling of Airfoil Noise Subjected to Leading-Edge Serrations JF - AIAA Journal Y1 - 2017 U6 - https://doi.org/10.2514/1.j055633 VL - 55 IS - 9 SP - 3128 EP - 3142 PB - ARC ER - TY - CHAP A1 - Kahn, Ken A1 - Montero, Calkin Suero A1 - Voigt, Christian ED - Giannakos, Michail N. ED - Jaccheri, Letizia ED - Divitini, Monica T1 - STEAM learning in formal and informal settings via craft and maker projects T2 - Proceedings of the 17th ACM Conference on Interaction Design and Children, 19.06.-22.06.2018, Trondheim Y1 - 2018 SN - 9781450351522 U6 - https://doi.org/10.1145/3202185.3205869 SP - 728 EP - 733 PB - ACM CY - New York ER - TY - JOUR A1 - Girod, Kai A1 - Breitkreuz, Klaas A1 - Henning, Torsten A1 - Lohmann, Heiko A1 - Kaluza, Stefan A1 - Schluter, Stefan T1 - Steel Mills as Syngas Source for Methanol Synthesis: Simulation and Practical Performance Investigations JF - Chemical Engineering Transactions N2 - In the present contribution, the utilization of steel-mill gases for an industrial methanol synthesis process is described. The focus of this work is on the influence of syngas compositions derived from steel-mill gases on an industrial Cu/ZnO/Al2O3 catalyst. Elevated CO2 and H2O concentrations seem to have an irreversible impact on the activity of the catalyst. In order to obtain realistic gas composition for the catalyst tests, a process simulation of the methanol synthesis was conducted. The calculated gas compositions at the reactor inlet were applied in a practical test in order to evaluate the catalyst stability under steel mill gas conditions. No noticeable deactivation was observed. KW - DOAJ Y1 - 2019 SN - 978-88-95608-71-6 U6 - https://doi.org/10.3303/CET1974080 SN - 2283-9216 VL - 74 SP - 475 EP - 480 PB - AIDIC ER - TY - CHAP A1 - Wöldecke, Björn A1 - Vierjahn, Tom A1 - Flasko, Matthias A1 - Herder, Jens A1 - Geiger, Christian T1 - Steering actors through a virtual set employing vibro-tactile feedback T2 - TEI '09 Proceedings of the 3rd International Conference on Tangible and Embedded Interaction N2 - Actors in virtual studio productions are faced with the challenge that they have to interact with invisible virtual objects because these elements are rendered separately and combined with the real image later in the production process. Virtual sets typically use static virtual elements or animated objects with predefined behavior so that actors can practice their performance and errors can be corrected in the post production. With the demand for inexpensive live recording and interactive TV productions, virtual objects will be dynamically rendered at arbitrary positions that cannot be predicted by the actor. Perceptive aids have to be employed to support a natural interaction with these objects. In our work we study the effect of haptic feedback for a simple form of interaction. Actors are equipped with a custom built haptic belt and get vibrotactile feedback during a small navigational task (path following). We present a prototype of a wireless vibrotactile feedback device and a small framework for evaluating haptic feedback in a virtual set environment. Results from an initial pilot study indicate that vibrotactile feedback is a suitable non-visual aid for interaction that is at least comparable to audio-visual alternatives used in virtual set productions. KW - tactile feedback KW - interaction in virtual sets KW - navigation aids KW - FHD KW - VSVR KW - Virtual (TV) Studio Y1 - 2009 UR - https://dl.acm.org/citation.cfm?id=1517703 SN - 978-1-60558-493-5 U6 - https://doi.org/10.1145/1517664.1517703 SP - 169 EP - 174 PB - ACM CY - New York ER - TY - JOUR A1 - Schramm, Sebastian A1 - Adam, Mario T1 - Storage in Solar Process Heat Applications JF - Energy Procedia KW - Solare-Prozesswärme-Standards Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27244 SN - 1876-6102 N1 - PII: S1876610214003981 VL - 48 SP - 1202 EP - 1209 PB - Elsevier ER - TY - JOUR A1 - Ryskeldiev, Bektur A1 - Cohen, Michael A1 - Herder, Jens T1 - StreamSpace: Pervasive Mixed Reality Telepresence for Remote Collaboration on Mobile Devices JF - Journal of Information Processing N2 - We present a system that exploits mobile rotational tracking and photospherical imagery to allow users to share their environment with remotely connected peers “on the go.” We surveyed related interfaces and developed a unique groupware application that shares a mixed reality space with spatially-oriented live video feeds. Users can collaborate through realtime audio, video, and drawings in a virtual space. The developed system was tested in a preliminary user study, which confirmed an increase in spatial and situational awareness among viewers as well as reduction in cognitive workload. Believing that our system provides a novel style of collaboration in mixed reality environments, we discuss future applications and extensions of our prototype. KW - Ubiquitous Computing KW - Telepresence KW - Remote Collaboration KW - Mixed Reality KW - Live Video Streaming Y1 - 2018 U6 - https://doi.org/10.2197/ipsjjip.26.177 VL - 26 SP - 177 EP - 185 PB - J-STAGE ER - TY - JOUR A1 - Anton, Johan A1 - Nebel, Janine A1 - Song, Huiqing A1 - Froese, Christian A1 - Weide, Philipp A1 - Ruland, Holger A1 - Muhler, Martin A1 - Kaluza, Stefan T1 - Structure–activity relationships of Co-modified Cu/ZnO/Al2O3 catalysts applied in the synthesis of higher alcohols from synthesis gas JF - Applied Catalysis A: General Y1 - 2015 U6 - https://doi.org/10.1016/j.apcata.2015.07.002 SN - 0926-860X VL - 505 SP - 326 EP - 333 PB - Elsevier ER - TY - JOUR A1 - Küppers, Thomas A1 - Biermann, Jan-Welm A1 - Steffens, Jochen T1 - Structurized sound design process of electric vehicle interior sound JF - The Journal of the Acoustical Society of America Y1 - 2011 U6 - https://doi.org/10.1121/1.3655178 VL - 130 IS - 4 PB - AIP Publishing ER - TY - CHAP A1 - Kärst, Michaela A1 - Steffens, Jochen A1 - Skoda, Sabrina T1 - Subjective evaluation and psychoacoustic analysis of the sound quality of low-noise asphalt on motorways in North-Rhine Westphalia T2 - Fortschritte der Akustik 2013,DAGA-AIA, Merano, Italy, CD-ROM Y1 - 2013 CY - Merano ER - TY - CHAP A1 - Herder, Jens A1 - Büntig, Fabian A1 - Daemen, Jeff A1 - Lang, Jaroslaw A1 - Lück, Florian A1 - Säger, Mitja A1 - Sörensen, Roluf A1 - Hermanni, Markus A1 - Vonolfen, Wolfgang T1 - Subtle Animations using Talent Tracking in a Virtual (TV) Studio T2 - 17th International Conference on Human and Computer N2 - Markerless talent tracking is widely used for interactions and animations within virtual environments. In a virtual (tv) studio talents could be overburden by interaction tasks because camera and text require extensive attention. We take a look into animations and inter- actions within a studio, which do not require any special attention or learning. We show the generation of an artificial shadow from a talent, which ease the keying process, where separation of real shadows from the background is a difficult task. We also demonstrate animations of footsteps and dust. Furthermore, capturing talents’ height can also be used to adjust the parameters of elements in the virtual environment, like the position and scaling of a virtual display. In addition to the talents, a rigid body was tracked as placeholder for graphics, easing the interaction tasks for a talent. Two test productions show the possibilities, which subtle animations offer. In the second production, the rendering was improved (shadows, filtering, normal maps, ...) and instead of using the rigid body to move an object (a flag), the animation was only controlled by the hand’s position. KW - talent tracking KW - virtual studios KW - realtime animations KW - FHD KW - Virtual (TV) Studio Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-16009 UR - http://vsvr.medien.hs-duesseldorf.de/publications/hc2014-subtle-animations-abstract.html CY - Hamamatsu/Aizu-Wakamatsu/Duesseldorf ER - TY - JOUR A1 - Biedermann, Till M. A1 - Kameier, F. A1 - Paschereit, C. O. T1 - Successive Aeroacoustic Transfer of Leading Edge Serrations From Single Airfoil to Low-Pressure Fan Application JF - Journal of Engineering for Gas Turbines and Power KW - ISAVE Y1 - 2019 U6 - https://doi.org/10.1115/1.4044362 VL - 141 IS - 10 PB - ASME ER - TY - CHAP A1 - Beckers, Kristian A1 - Faßbender, Stephan A1 - Heisel, Maritta A1 - Küster, Jan-Christoph A1 - Schmidt, Holger ED - Barthe, Gilles ED - Livshits, Benjamin ED - Scandariato, Riccardo T1 - Supporting the Development and Documentation of ISO 27001 Information Security Management Systems through Security Requirements Engineering Approaches T2 - Engineering Secure Software and Systems: 4th International Symposium, ESSoS 2012, Eindhoven, The Netherlands, February, 16-17, 2012. Proceedings KW - Security standards KW - requirements engineering KW - ISO27000 KW - ISO27001 KW - security Y1 - 2012 UR - https://link.springer.com/chapter/10.1007/978-3-642-28166-2_2 SN - 978-3-642-28165-5 U6 - https://doi.org/10.1007/978-3-642-28166-2_2 VL - LNCS, 7159 SP - 14 EP - 21 PB - Springer CY - Berlin, Heidelberg ER - TY - CHAP A1 - Deckert, Carsten ED - Lu, Hualiang ED - Schmidpeter, René ED - Capaldi, Nicholas ED - Zu, Liangrong T1 - Sustainable Logistics: A Framework for Green Logistics and City Logistics T2 - Building New Bridges Between Business and Society Y1 - 2018 SN - 978-3-319-63560-6 U6 - https://doi.org/10.1007/978-3-319-63561-3_4 SP - 53 EP - 70 PB - Springer International Publishing CY - Cham ER - TY - JOUR A1 - Niemann, Jörg A1 - Pisla, Adrian T1 - Sustainable Potentials and Risks Assess in Automation and Robotization Using the Life Cycle Management Index Tool—LY-MIT JF - Sustainability KW - FLiX KW - DOAJ Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27966 SN - 2071-1050 VL - 10 IS - 12 PB - MDPI ER - TY - CHAP A1 - Cohen, Michael A1 - Herder, Jens ED - Göbel, Martin ED - Landauer, Jürgen ED - Lang, Ulrich ED - Wapler, Matthias T1 - Symbolic representations of exclude and include for audio sources and sinks: Figurative suggestions of mute/solo & cue and deafen/confide & harken T2 - Virtual Environments ’98, Proceedings of the Eurographics Workshop Y1 - 1998 SN - 3-211-83233-5 U6 - https://doi.org/10.1007/978-3-7091-7519-4_23 SP - 235 EP - 242 PB - Springer-Verlag CY - Stuttgart ER - TY - JOUR A1 - Fomin, Alexey A1 - Petelin, Daniil A1 - Jahr, Andreas T1 - Synthesis and Analysis of a Novel Linkage Mechanism with the Helical Motion of the End-Effector JF - Robotics Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27736 SN - 2218-6581 N1 - Supplementary Material ist verfügbar: https://www.mdpi.com/2218-6581/9/3/53/s1 (Zip mit mov-Datei) VL - 9 IS - 3 SP - 1 EP - 15 PB - MDPI ER - TY - JOUR A1 - Eilert, Eva A1 - Kranz, Andreas A1 - Hollenberg, Cornelis P. A1 - Piontek, Michael A1 - Suckow, Manfred T1 - Synthesis and release of the bacterial compatible solute 5-hydroxyectoine in Hansenula polymorpha JF - Journal of biotechnology N2 - Ectoine and 5-hydroxyectoine belong to the family of compatible solutes which are known to mainly contribute to the adaptation of the cell to osmotic stress by mediation of a constant turgor. In addition the cell's essential functions are maintained under stress conditions like high salinity, heat or aridity stress. Hansenula polymorpha was engineered to catalyze the transformation of monomeric substrates to 5-hydroxyectoine. For this purpose four genes encoding the enzymes of the 5-hydroxyectoine biosynthesis pathway of Halomonas elongata, EctA, EctB, EctC, and EctD, were inserted into the genome of H. polymorpha. Subsequently the syntheses of ectoine and 5-hydroxyectoine were analyzed and optimized. We showed that H. polymorpha is a suitable system for recombinant 5-hydroxyectoine synthesis in gram per liter scale (2.8 g L⁻¹ culture supernatant, 365 μmol/g dcw) in which almost 100% conversion of ectoine to 5-hydroxyectoine without necessity of high salinity were achieved. Y1 - 2013 UR - http://www.ncbi.nlm.nih.gov/pubmed/23467000 U6 - https://doi.org/10.1016/j.jbiotec.2013.02.005 VL - 167 IS - 2 SP - 85 EP - 93 PB - Elsevier ER - TY - JOUR A1 - Boz, İsmail A1 - Kaluza, Stefan A1 - Boroğlu, Mehtap Şafak A1 - Muhler, Martin T1 - Synthesis of high surface area ZnO powder by continuous precipitation JF - Materials Research Bulletin Y1 - 2012 U6 - https://doi.org/10.1016/j.materresbull.2012.02.005 SN - 1873-4227 VL - 47 IS - 5 SP - 1185 EP - 1190 PB - Elsevier ER - TY - CHAP A1 - Hatebur, Denis A1 - Heisel, Maritta A1 - Jürjens, Jan A1 - Schmidt, Holger ED - Giannakopoulou, Dimitra ED - Orejas, Fernando T1 - Systematic Development of UMLsec Design Models Based on Security Requirements T2 - Fundamental Approaches to Software Engineering: 14th International Conference, FASE 2011, Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS 2011, Saarbrücken, Germany, March 26–April 3, 2011. Proceedings KW - security requirement KW - secquence diagram KW - eclipse modeling framework KW - patient monitoring system KW - security requirement engineering Y1 - 2011 UR - https://link.springer.com/chapter/10.1007/978-3-642-19811-3_17 SN - 978-3-642-19810-6 U6 - https://doi.org/10.1007/978-3-642-19811-3_17 VL - LNCS, 6603 SP - 232 EP - 246 PB - Springer CY - Berlin, Heidelberg ER - TY - CHAP A1 - Rödder, Maximilian A1 - Neef, Matthias A1 - Laux, Christoph A1 - Priebe, Klaus-P. T1 - Systematic Fluid Selection for Organic Rankine Cycles (ORC) and Performance Analysis for a Combined High and Low Temperature Cycle T2 - Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration N2 - The organic Rankine cycle (ORC) is an established thermodynamic process that converts waste heat to electric energy. Due to the wide range of organic working fluids available the fluid selection adds an additional degree of freedom to the early design phase of an ORC process. Despite thermodynamic aspects such as the temperature level of the heat source, other technical, economic and safety aspects have to be considered. For the fluid selection process in this paper, 22 criteria were identified in six main categories while distinguishing between elimination and tolerance criteria. For an ORC design, the suggested method follows a practical engineering approach and can be used as a structured way to limit the number of interesting working fluids before starting a detailed performance analysis of the most promising candidates. For the first time the selection process is applied to a two-stage reference cycle which uses the waste heat of a large reciprocating engine for cogeneration power plants. It consists of a high temperature and a low temperature cycle in which the condensation heat of the high temperature (HT) cycle provides the heat input of the low temperature (LT) cycle. After the fluid selection process the detailed thermodynamic cycle design is carried out with a thermodynamic design tool that also includes a database for organic working fluids. The investigated ORC cycle shows a net thermal efficiency of about 17,4% in the high temperature cycle with Toluene as the working fluid and 6,2% in low temperature cycle with iso-Butane as the working fluid. The electric efficiency of the cogeneration plant increases from 40,4% to 46,97% with the both stages of the two-stage ORC in operation. Y1 - 2015 UR - https://asmedigitalcollection.asme.org/GT/proceedings/GT2015/56673/Montreal, Quebec, Canada/236733 SN - 978-0-7918-5667-3 U6 - https://doi.org/10.1115/GT2015-42432 PB - American Society of Mechanical Engineers ER - TY - JOUR A1 - Roedder, Maximilian A1 - Neef, Matthias A1 - Laux, Christoph A1 - Priebe, Klaus-P. T1 - Systematic Fluid Selection for Organic Rankine Cycles and Performance Analysis for a Combined High and Low Temperature Cycle JF - Journal of Engineering for Gas Turbines and Power N2 - The organic Rankine cycle (ORC) is an established thermodynamic process that converts waste heat to electric energy. Due to the wide range of organic working fluids available the fluid selection adds an additional degree-of-freedom to the early design phase of an ORC process. Despite thermodynamic aspects such as the temperature level of the heat source, other technical, economic, and safety aspects have to be considered. For the fluid selection process in this paper, 22 criteria were identified in six main categories while distinguishing between elimination (EC) and tolerance criteria (TC). For an ORC design, the suggested method follows a practical engineering approach and can be used as a structured way to limit the number of interesting working fluids before starting a detailed performance analysis of the most promising candidates. For the first time, the selection process is applied to a two-stage reference cycle, which uses the waste heat of a large reciprocating engine for cogeneration power plants. It consists of a high temperature (HT) and a low temperature (LT) cycle in which the condensation heat of the HT cycle provides the heat input of the LT cycle. After the fluid selection process, the detailed thermodynamic cycle design is carried out with a thermodynamic design tool that also includes a database for organic working fluids. The investigated ORC cycle shows a net thermal efficiency of about 17.4% in the HT cycle with toluene as the working fluid and 6.2% in LT cycle with isobutane as the working fluid. The electric efficiency of the cogeneration plant increases from 40.4% to 46.97% with the both stages of the two-stage ORC in operation. KW - Gas Turbines KW - Cycle Innovations KW - Energy KW - Power systems KW - Fluids Y1 - 2016 U6 - https://doi.org/10.1115/1.4031361 VL - 138 IS - 031701 EP - 3 PB - ASME ER - TY - CHAP A1 - Rödder, Maximilian A1 - Laux, Christoph A1 - Neef, Matthias T1 - Systematic fluid selection in early stages of ORC design: a practical engineering approach T2 - Proceedings of the ASME Turbo Expo: Turbine Technical Conference and Exposition - 2015 : presented at the ASME 2015 Turbo Expo: Turbine Technical Conference and Exposition, June 15 - 19, 2015, Montreal, Quebec, Canada / sponsored by the International Gas Turbine Institute Y1 - 2015 SN - 978-0-7918-5667-3 VL - 3: Coal, biomass and alternative fuels - cycle innovations - electric power - industrial and cogeneration PB - International Gas Turbine Institute (ASME) CY - New York ER - TY - JOUR A1 - Strucks, Peter A1 - Watermann, Clara A1 - Weber, Konradin A1 - Kaluza, Stefan T1 - Systematic Investigations of Vibrational and Fluid‐Mechanical Stability of Coated Monolithic Catalysts JF - Chemie Ingenieur Technik N2 - Heterogeneous catalysts usually consist of porous, inorganic materials. Especially in the mobile application, e.g., in exhaust gas catalysis as a part of the gas line of an engine, there are loads due to vibrations and high gas velocities. It can be assumed that physical stress will lead to a loss of the catalytically active coating. The present contribution describes experimental setups and methods for a systematic and reproducible investigation of the main influences to the mass loss due to vibrational and fluid‐mechanical stress caused by particle‐free gas flows. KW - Design of experiments KW - Extruded catalysts KW - Mechanical stability Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-28930 SN - 1522-2640 VL - 93 IS - 5 SP - 1 EP - 6 PB - Wiley ER - TY - GEN ED - Yilmaz, Murat ED - Niemann, Jörg ED - Clarke, Paul ED - Messnarz, Richard T1 - Systems, Software and Services Process Improvement T2 - Communications in Computer and Information Science Y1 - 2020 SN - 978-3-030-56440-7 U6 - https://doi.org/10.1007/978-3-030-56441-4 VL - 1251 PB - Springer Nature Switzerland CY - Cham ER - TY - JOUR A1 - Kampes, Céline Fabienne T1 - Tail or no Tail? Applicability of the Long Tail Theory to the German Online Media Market JF - Central European Journal of Communication N2 - The Long Tail theory serves as an explanation for market change triggered through evolving online market conditions. However, it is often referred to without empirical validation, or with inconsistent findings on its applicability. Therefore, this paper analyses the applicability of the Long Tail theory to German online media offerings as of 2014 and 2016, focusing on offerings that serve information purposes (information offerings). Based on a unique dataset of commercially oriented online media offerings (Longitudinal IntermediaPlus 2014–2016), an analysis for three Long Tail characteristics (variety increase, opposing concentration between hit and niche offerings and niche market share increase) is conducted. By additionally distinguishing between political and entertainment-oriented information offerings as boundaries of democratized online market conditions the analysis reveals that the Long Tail theory is not fully applicable to any market sample, and especially not to politically oriented offerings. KW - online information offerings KW - Long Tail theory KW - entertainment KW - politics KW - Germany Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40123 SN - 1899-5101 N1 - This research was supported by the Digital Society research program funded by the Ministry of Culture and Science of the German State of North Rhine-Westphalia. VL - 13 IS - 3 SP - 371 EP - 389 PB - University Press of Wroclaw ER - TY - CHAP A1 - Feitsch, Jochen A1 - Strobel, Marco A1 - Meyer, Stefan A1 - Geiger, Christian ED - Butz, Andreas ED - Greenberg, Saul ED - Bakker, Saskia ED - Loke, Lian ED - de Luca, Alexander T1 - Tangible and body-related interaction techniques for a singing voice synthesis installation T2 - Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction - TEI '14, 16.02.2014 - 19.02.2014, Munich Y1 - 2013 UR - http://dl.acm.org/citation.cfm?doid=2540930 SN - 9781450326353 U6 - https://doi.org/10.1145/2540930.2540962 SP - 157 EP - 164 PB - ACM Press CY - New York ER - TY - CHAP A1 - Echternacht, David A1 - Neusel-Lange, N. A1 - Schermuly, Rainer A1 - Meyer, F. T1 - Target Network Planning and Asset Condition Assessment as Basis for an integrated Asset Management Approach T2 - ETG Congress 2017, Bonn, 28.11.-29.11.2017 Y1 - 2017 CY - Bonn ER - TY - CHAP A1 - Zielke, Thomas A1 - Neef, Matthias A1 - Fussenecker, Claudia T1 - Teaching Engineering Conferences T2 - Proceedings of the Canadian Engineering Education Association (CEEA) Conference N2 - This article is on a university course called Engineering Conferences. It has been developed by the authors and installed as a mandatory part of the curriculum in three master’s degree programs for engineering students. The participants of the course are postgraduates with different nationalities, mostly German, and different technical backgrounds. They study Mechanical Engineering, Simulation and Experimental Technology, or International Business Engineering. The basic idea of the course concept goes far beyond simply teaching the standards of academic writing and skills for using scientific publications. By using a learnercentered approach, the students get engaged in typical activities around an active attendance of a real conference. Students learn to locate the field of their bachelor thesis or project report in the world of research communities, scientific journals and engineering conferences. They learn about conferences matching their bachelor/project topic. They write a paper complying with common academic standards, submit it to a mock-up conference, and review submissions of their fellow students. Students also produce a poster and have to defend it in a poster session held publicly on the campus. Engineering Conferences is a course on scientific communication and presentation that also aims at the development of other skills and competences needed in the world of modern engineering. KW - Engineering Conferences Y1 - 2017 CY - Winnipeg ER - TY - CHAP A1 - Reckter, Holger A1 - Geiger, Christian A1 - Singer, Jurgen A1 - Streuber, Stephan T1 - Tech-note: Iterative design and test of a multimodal experience T2 - 2009 IEEE Symposium on 3D User Interfaces, 14.03.2009 - 15.03.2009, Lafayette Y1 - 2009 UR - http://ieeexplore.ieee.org/document/4811213/ SN - 978-1-4244-3965-2 U6 - https://doi.org/10.1109/3DUI.2009.4811213 SP - 99 EP - 102 PB - IEEE ER - TY - CHAP A1 - Breuer, Christopher A1 - Echternacht, David A1 - Linnemann, Christian A1 - Moser, Albert T1 - Technical and economic comparison of national and joint cross-border curative congestion management application T2 - 2011 8th International Conference on the European Energy Market (EEM), 25.05.2011 - 27.05.2011, Zagreb, Croatia Y1 - 2011 UR - http://ieeexplore.ieee.org/document/5952974/ SN - 978-1-61284-285-1 U6 - https://doi.org/10.1109/EEM.2011.5952974 SP - 33 EP - 38 PB - IEEE ER - TY - JOUR A1 - Wiesmann, Thomas A1 - Hamel, Christian A1 - Kaluza, Stefan T1 - Techniques to Remove Traces of Oxygen by Catalytic Conversion from Gas Mixtures JF - Chemie Ingenieur Technik Y1 - 2018 U6 - https://doi.org/10.1002/cite.201800022 SN - 1522-2640 VL - 90 IS - 10 SP - 1446 EP - 1452 PB - Wiley ER - TY - CHAP A1 - Deckert, Carsten T1 - Tensions in Corporate Creativity T2 - Book of Papers N2 - The standard definition of creativity is based on a tension between originality and effectiveness. Borrowing from the wave-particle duality in physics one could say that there is an originality-effectiveness duality at work for creativity. The paper explores how this tension pervades Amabile's (1997) componential theory of organizational creativity with the components organizational motivation, management practices (including work assignment and work control) and resources. As a method the so called value square (" Wertequadrat ") developed by Helwig (1967) and Schulz von Thun (1998) is used which balances a value with its countervalue. The author identifies a tension of corporate tradition and corporate change for organizational motivation, a tension of skills and challenges for work assignment, a tension of management by control and management by loss of control for work control as well as a tension of organizational efficiency and organizational slack for resources. Additionally different implications of these tensions for the resistance of a company to creativity, for an organizational climate conducive to creativity as well as for resource allocation in creative endeavours are discussed. KW - Components of Creativity KW - Corporate Creativity KW - Organizational Creativity Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-18065 UR - https://www.researchgate.net/publication/313010955_TENSIONS_IN_CORPORATE_CREATIVITY SP - 79 EP - 86 ER - TY - RPRT A1 - Deckert, Carsten T1 - Tensions in Creative Products - Using the Value Square to Model Functional Creativity T2 - CBS Working Paper Series Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-18078 UR - https://www.researchgate.net/publication/305900610_Tensions_in_Creative_Products_-_Using_the_Value_Square_to_Model_Functional_Creativity VL - 4 PB - Cologne Business School CY - Köln ER - TY - JOUR A1 - Deckert, Carsten T1 - Tensions in Creative Products: Using the Value Square to Model Functional Creativity JF - International Journal of Creativity & Problem Solving Y1 - 2017 VL - 26 SP - 71 EP - 93 ER -