TY - JOUR A1 - Engeldahl, Barthel A1 - Özaslan, Mehtap A1 - Marschall, Roland A1 - Rose, Marcus A1 - Kaluza, Stefan A1 - Titus, Juliane A1 - Sprung, Christoph T1 - Weimar 2015: Catalysing Tomorrow’s Solutions JF - ChemCatChem Y1 - 2015 U6 - https://doi.org/10.1002/cctc.201500435 SN - 1867-3899 VL - 7 IS - 12 SP - 1794 EP - 1796 PB - Wiley ER - TY - CHAP A1 - Askari, Sima Ipakchian A1 - Huldtgren, Alina A1 - IJsselsteijn, Wijnand ED - Bamidis, P.D. ED - Ziefle, M. ED - Maciaszek, L. T1 - Wear it or fear it: exploration of drivers & barriers in smartwatch acceptance by senior citizens T2 - Proceedings of the 4th International Conference on Information and Communication Technologies for Ageing Well and e-Health,IC T4AWE - Volume 1, 26-36, 2018, Funchal, Madeira, Portugal KW - Assistive Technology KW - Seniors KW - Smartwatches KW - Technology Acceptance KW - Wearables Y1 - 2018 SN - 978-989-758-299-8 U6 - https://doi.org/10.5220/0006673000260036 SP - 26 EP - 36 PB - SciTePress Digital Library ER - TY - JOUR A1 - Ruess, Martin A1 - Schillinger, Dominik A1 - Bazilevs, Yuri A1 - Varduhn, Vasco A1 - Rank, Ernst T1 - Weakly enforced essential boundary conditions for NURBS-embedded and trimmed NURBS geometries on the basis of the finite cell method JF - International Journal for Numerical Methods in Engineering Y1 - 2013 U6 - https://doi.org/10.1002/nme.4522 SN - 1097-0207 VL - 95 IS - 10 SP - 811 EP - 846 PB - Wiley ER - TY - JOUR A1 - Ruess, Martin A1 - Schillinger, Dominik A1 - Özcan, Ali I. A1 - Rank, Ernst T1 - Weak coupling for isogeometric analysis of non-matching and trimmed multi-patch geometries JF - Computer Methods in Applied Mechanics and Engineering Y1 - 2014 U6 - https://doi.org/10.1016/j.cma.2013.10.009 SN - 0045-7825 VL - 269 SP - 46 EP - 71 PB - Elsevier ER - TY - JOUR A1 - Pfeiffelmann, Björn A1 - Benim, Ali Cemal A1 - Joos, Franz T1 - Water-Cooled Thermoelectric Generators for Improved Net Output Power: A Review JF - Energies N2 - Thermoelectric generators (TEGs) have the ability to convert waste heat into electrical energy under unfavorable conditions and are becoming increasingly popular in academia, but have not yet achieved a broad commercial success, due to the still comparably low efficiency. To increase the efficiency and economic viability of TEGs, research is performed on the materials on one hand and on the system connection on the other. In the latter case, the net output power of the cooling system plays a key role. At first glance, passive cooling seems preferable to active cooling because it does not affect the net electrical output power. However, as shown in the present review, the active cooling is to be preferred for net output power. The situation is similar in air and water-cooling. Even though air-cooling is easier to set up, the water-cooling should be preferred to achieve higher net output power. It is shown that microchannel cooling has similar hydraulic performance to conventional cooling and inserts increase the net output power of TEG. As the review reveals that active water-cooling should be the method of choice to achieve high net output power, it also shows that a careful optimization is necessary to exploit the potential. KW - Energy Engineering and Power Technology KW - Renewable Energy, Sustainability and the Environment KW - Electrical and Electronic Engineering KW - Control and Optimization KW - DOAJ Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-37323 SN - 1996-1073 VL - 14 IS - 24 PB - MDPI ER - TY - BOOK ED - Schubart, Rikke ED - Virchow, Fabian T1 - War isn't hell, it's entertainment KW - Forena Y1 - 2009 SN - 978-0786435586 PB - McFarland & Company Publ. CY - Jefferson, N.C. ER - TY - JOUR A1 - Tophoven, Silke A1 - Reims, Nancy A1 - Tisch, Anita T1 - Vocational Rehabilitation of Young Adults with Psychological Disabilities JF - Journal of Occupational Rehabilitation N2 - Objective Vocational rehabilitation measures support youth and young adults with disabilities to obtain vocational training and to enter the labor market. In Germany, a growing number of young people with psychological disabilities in vocational rehabilitation can be observed. The study at hand focuses on this group and examines their (un-)unemployment biographies before vocational rehabilitation, their access to vocational rehabilitation and identifies their individual challenges within the process of vocational rehabilitation. Methods Using a multi-methods approach, we analyze representative administrative data of the German Federal Employment Agency as well as biographical interviews conducted with young rehabilitants. We compare the population of young rehabilitants with psychological disorders to those with other disabilities in terms of vocational rehabilitation and initial labor market entry in order to get a representative picture about their school to work transitions. Since rehabilitants with psychological disabilities tend to be older than the remaining population, analyses are stratified by age groups. In addition, qualitative in-depth interviews provide an additional and deeper understanding of specific employment barriers youth with psychological disorders have to overcome. Furthermore, the individual perspective gives insight on how the crucial transition from school to work is perceived by the population under study. Results The pathway into vocational rehabilitation of youth with psychological disorders is often characterized by obstacles in their transition from school to work. During rehabilitation, it appears essential to provide psychological stabilization along with vocational training. Although their average level of education is higher than those of other rehabilitants, labor market transition after (often company-external) vocational training challenges many young people with psychological disabilities, leaving many of them with comparatively poor labor market prospects. Conclusions Young persons with psychological disabilities, who come from regular schools or dropped out from regular school or university, seem to find their way to vocational rehabilitation more indirectly. Furthermore, vocational rehabilitation itself is often prolonged for those with psychological disabilities possibly due to a corresponding stabilization process. However, vocational rehabilitation can be a core element within the stabilization process of a psychological disease. Y1 - 2019 U6 - https://doi.org/10.1007/s10926-018-9773-y VL - 29 IS - 1 SP - 150 EP - 162 PB - Springer ER - TY - JOUR A1 - Schreiber, Andreas A1 - Struminksi, Regina T1 - Visualizing the Provenance of Personal Data Using Comics JF - Computers KW - DOAJ Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40286 SN - 2073-431X VL - 7 IS - 1 PB - MDPI ER - TY - JOUR A1 - Herder, Jens T1 - Visualization of a Clustering Algorithm of Sound Sources based on Localization Errors JF - Journal of the 3D-Forum Society N2 - A module for soundscape monitoring and visualizing resource management processes was extended for presenting clusters, generated by a novel sound source clustering algorithm. This algorithm groups multiple sound sources together into a single representative source, considering localization errors depending on listener orientation. Localization errors are visualized for each cluster using resolution cones. Visualization is done in runtime and allows understanding and evaluation of the clustering algorithm. KW - audio rendering, clustering KW - human perception KW - Resource Management KW - Sound Spatialization KW - Visualization Y1 - 1999 VL - 13 IS - 3 SP - 66 EP - 70 ER - TY - CHAP A1 - Herder, Jens T1 - Visualization of a Clustering Algorithm of Sound Sources based on Localization Errors T2 - Second International Conference on Human and Computer N2 - A module for soundscape monitoring and visualizing resource management processes was extended for presenting clusters, generated by a novel sound source clustering algorithm. This algorithm groups multiple sound sources together into a single representative source, considering localization errors depending on listener orientation. Localization errors are visualized for each cluster using resolution cones. Visualization is done in runtime and allows understanding and evaluation of the clustering algorithm. KW - audio rendering, clustering KW - human perception KW - Resource Management KW - Sound Spatialization KW - Visualization Y1 - 1999 SP - 1 EP - 5 CY - Aizu-Wakamatsu ER - TY - CHAP A1 - Myszkowski, Karol A1 - Herder, Jens A1 - Kunii, Tosiyasu L. A1 - Ibusuki, Masumi T1 - Visualization and analysis of occlusion for human jaws using a "functionally generated path" T2 - IS&T/SPIE Symp. on Electronic Imaging, Visual Data Exploration and Analysis III N2 - Dynamic characteristics of occlusion during lower jaw motion are useful in the diagnosis of jaw articulation problems and in computer-aided design/manufacture of teeth restorations. The Functionally Generated Path (FGP), produced as a surface which envelops the actual occlusal surface of the moving opponent jaw, can be used for compact representation of dynamic occlusal relations. In traditional dentistry FGP is recorded as a bite impression in a patient’s mouth. We propose an efficient computerized technique for FGP reconstruction and validate it through implementation and testing. The distance maps between occlusal surfaces of jaws, calculated for multiple projection directions and accumulated for mandibular motion, provide information for FGP computation. Rasterizing graphics hardware is used for fast calculation of the distance maps. Real-world data are used: the scanned shape of teeth and the measured motion of the lower jaw. We show applications of FGP to analysis of the occlusion relations and occlusal surface design for restorations. Y1 - 1996 U6 - https://doi.org/10.1117/12.234684 SP - 360 EP - 367 PB - The International Society for Optical Engineering CY - San Jose ER - TY - CHAP A1 - Myszkowski, Karol A1 - Okuneva, Galina A1 - Herder, Jens A1 - Kunii, Tosiyasu L. A1 - Ibusuki, Masumi ED - Earnshaw, Rae A. ED - Huw, Jones ED - John, Vince T1 - Visual Simulation of the Chewing Process for Dentistry T2 - Visualization & Modeling N2 - CAD/CAM techniques are increasingly used in dentistry for the design and fabrication of teeth estorations. Important concerns are the correction of articulation problems that existed before treatment and the prevention of treatment-generated problems. These require interactive evaluation of the occlusal surfaces of teeth during mastication. Traditional techniques based on the use of casts with mechanical articulators require manual adjustment of occlusal surfaces, which becomes impractical when hard restoration materials like porcelain are used; they are also time and labor consuming and provide little visual information. We present new visual tools and a related user interface for global articulation simulation, developed for the Intelligent Dental Care System project. The aim of the simulation is visual representation of characteristics relevant to the chewing process. The simulation is based on the construction of distance maps, which are visual representations of the distributions of the distances of points in a tooth to the opposite jaw. We use rasterizing graphics hardware for fast calculation of the distance maps. Distance maps are used for collision detection and for the derivation of various characteristics showing the distribution of load on the teeth and the chewing capability of the teeth. Such characteristics can be calculated for particular positions of the jaws; cumulative characteristics are used to describe the properties of jaw movement. This information may be used for interactive design of the occlusal surfaces of restorations and for jaw articulation diagnosis. We also demonstrate elements of a user interface that exploit metaphors familiar to dentists from everyday practice. Y1 - 1997 SN - 0-12-227738-4 SP - 419 EP - 438 PB - Academic Press CY - London ER - TY - CHAP A1 - Myszkowski, Karol A1 - Okuneva, Galina A1 - Herder, Jens A1 - Kunii, Tosiyasu L. A1 - Ibusuki, Masumi T1 - Visual Simulation of the Chewing Process for Dentistry T2 - Visualization & Modelling, International Conf., 5-7 December, 1995 N2 - CAD/CAM techniques are increasingly used in dentistry for the design and fabrication of teeth restorations. Important concerns are the correction of articulation problems that existed beforetreatment and the prevention of treatment-generated problems. These require interactive evaluation of the occlusal surfaces of teeth during mastication. Traditional techniques based on the use of casts with mechanical articulators require manual adjustment of occlusal surfaces, which becomes impractical when hard restoration materials like porcelain are used; they are also time and labor consuming and provide little visual information. We present new visual tools and a related user interface for global articulation simulation, developed for the Intelligent Dental Care System project. The aim of the simulation is visual representation of characteristics relevant to the chewing process. The simulation is based on the construction of distance maps, which are visual representations of the distributions of the distances of points in a tooth to the opposite jaw. We use rasterizing graphics hardware for fast calculation of the distance maps. Distance maps are used for collision detection and for the derivation of various characteristics showing the distribution of load on the teeth and the chewing capability of the teeth. Such characteristics can be calculated for particular positions of the jaws; cumulative characteristics are used to describe the properties of jaw movement. This information may be used for interactive design of the occlusal surfaces of restorations and for jaw articulation diagnosis. We also demonstrate elements of a user interface that exploit metaphors familiar to dentists from everyday practice. Y1 - 1995 CY - Leeds ER - TY - CHAP A1 - Ayten, Hüseyin A1 - Herder, Jens A1 - Vonolfen, Wolfgang T1 - Visual Acceptance Evaluation of Soft Shadow Algorithms for Virtual TV Studios T2 - HC '10 Proceedings of the 13th International Conference on Humans and Computers N2 - Shadows in computer graphics are an important rendering aspect for spatial objects. For realtime computer applications such as games, it is essential to represent shadows as accurate as possible. Also, various tv stations work with virtual studio systems instead of real studio sets. Especially for those systems, a realistic impression of the rendered and mixed scene is important. One challenge, hence, is the creation of a natural shadow impression. This paper presents the results of an empirical study to compare the performance and quality of different shadow mapping methods. For this test, a prototype studio renderer was developed. A percentage closer filter (pcf) with a number of specific resolutions is used to minimize the aliasing issue. More advanced algorithms which generate smooth shadows like the percentage closer soft shadow (pcss) method as well as the variance shadow maps (vsm) method are analysed. Different open source apis are used to develop the virtual studio renderer, giving the benefit of permanent enhancement. The Ogre 3D graphic engine is used to implement the rendering system, benefiting from various functions and plugins. The transmission of the tracking data is accomplished with the vrpn server/client and the Intersense api. The different shadow algorithms are compared in a virtual studio environment which also casts real shadows and thus gives a chance for a direct comparison throughout the empirical user study. The performance is measured in frames per secon KW - Virtual (TV) Studio KW - soft shadow KW - realtime rendering KW - augmented reality KW - algorithmus KW - FHD KW - experimentation KW - verification KW - VSVR Y1 - 2010 UR - https://dl.acm.org/citation.cfm?id=1994505 SP - 66 EP - 71 PB - University of Aizu Press CY - Aizu-Wakamatsu ER - TY - JOUR A1 - Gaida, Philipp A1 - Weinberg, Kerstin A1 - Jahr, Andreas T1 - Viscoelastic modelling and experimental results of a dielectric electro-active polymer diaphragm actuator JF - Proceedings in Applied Mathematics and Mechanics (PAMM) Y1 - 2014 U6 - https://doi.org/10.1002/pamm.201410225 VL - 14 IS - 1 SP - 475 EP - 476 PB - Wiley ER - TY - CHAP A1 - Deckert, Carsten A1 - Mohya, Ahmed A1 - Suntharalingam, Sujieban T1 - VIRTUAL WHITEBOARDS DIGITAL POST-ITS - INCORPORATING INTERNET-BASED TOOLS FOR IDEATION INTO ENGINEERING COURSES T2 - SEFI 2021: 49th ANNUAL CONFERENCE BERLIN, 13.09.-16.09.2021 Y1 - 2021 SP - 1370 EP - 1375 ER - TY - CHAP A1 - Thiele, Simon A1 - Meyer, Laurid A1 - Geiger, Christian A1 - Drochtert, Daniel A1 - Woldecke, Bjorn T1 - Virtual archery with tangible interaction T2 - 2013 IEEE Symposium on 3D User Interfaces (3DUI), 16.03.2013 - 17.03.201, Orlando Y1 - 2013 UR - http://ieeexplore.ieee.org/document/6550199/ SN - 978-1-4673-6098-2 U6 - https://doi.org/10.1109/3DUI.2013.6550199 SP - 67 EP - 70 PB - IEEE ER - TY - CHAP A1 - Uren, Victoria A1 - Dadzie, Aba-Sah A1 - Franz, Thomas A1 - Lanfranchi, Vita A1 - Petrelli, Daniela T1 - Views on Cross-Media Knowledge Collections T2 - MMKM Workshop: Multimedia Knowledge Management: Industry meets academia, Milton Keynes Y1 - 2007 N1 - Published: Abstract and Poster: MMKM Workshop: Multimedia Knowledge Management: Industry meets academia, Milton Keynes ER - TY - CHAP A1 - Klapdohr, Monika A1 - Wöldecke, Björn A1 - Marinos, Dionysios A1 - Herder, Jens A1 - Geiger, Christian A1 - Vonolfen, Wolfgang T1 - Vibrotactile Pitfalls: Arm Guidance for Moderators in Virtual TV Studios T2 - HC '10 Proceedings of the 13th International Conference on Humans and Computers N2 - For this study, an experimental vibrotactile feedback system was developed to help actors with the task of moving their arm to a certain place in a virtual tv studio under live conditions. Our intention is to improve interaction with virtual objects in a virtual set, which are usually not directly visible to the actor, but only on distant displays. Vibrotactile feedback might improve the appearance on tv because an actor is able to look in any desired direction (camera or virtual object) or to read text on a teleprompter while interacting with a virtual object. Visual feedback in a virtual studio lacks spatial relation to the actor, which impedes the adjustment of the desired interaction. The five tactors of the implemented system which are mounted on the tracked arm give additional information like collision, navigation and activation. The user study for the developed system shows that the duration for reaching a certain target is much longer in case no visual feedback is given, but the accuracy is similar. In this study, subjects reported that an activation signal indicating the arrival at the target of a drag & drop task was helpful. In this paper, we discuss the problems we encountered while developing such a vibrotactile display. Keeping these pitfalls in mind could lead to better feedback systems for actors in virtual studio environments. KW - vibrotactile feedback KW - Virtual (TV) Studio KW - augmented reality KW - FHD KW - VSVR Y1 - 2010 UR - https://dl.acm.org/citation.cfm?id=1994506 SP - 72 EP - 80 PB - University of Aizu Press CY - Aizu-Wakamatsu ER - TY - CHAP A1 - Tiator, Marcel A1 - Geiger, Christian A1 - Dewitz, Bastian A1 - Fischer, Ben A1 - Gerhardt, Laurin A1 - Nowottnik, David A1 - Preu, Hendrik ED - Lukosch, Stephan ED - Kunze, Kai T1 - Venga!: climbing in mixed reality T2 - Proceedings of the First Superhuman Sports Design Challenge on First International Symposium on Amplifying Capabilities and Competing in Mixed Realities - SHS '18, Delft, 02.07.2018 - 05.07.2018 Y1 - 2018 UR - http://dl.acm.org/citation.cfm?doid=3210299 SN - 9781450364072 U6 - https://doi.org/10.1145/3210299.3210308 SP - 1 EP - 8 PB - ACM Press CY - New York ER -