@article{BenimPfeiffelmann2020, author = {Benim, Ali Cemal and Pfeiffelmann, Bj{\"o}rn}, title = {Comparison of Combustion Models for Lifted Hydrogen Flames within RANS Framework}, series = {Energies}, volume = {13}, journal = {Energies}, number = {1}, publisher = {MDPI}, issn = {1996-1073}, doi = {10.3390/en13010152}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-27727}, pages = {152}, year = {2020}, language = {en} } @inproceedings{RakowKorezkiBender2012, author = {Rakow, Thomas C. and Korezki, Vitali and Bender, Axel}, title = {Comparing the Contrast for Electronic and Traditional Whiteboards in a Real-life Environment}, series = {Proceedings Electronic Displays Conference 2012, Nuremberg, Germany}, booktitle = {Proceedings Electronic Displays Conference 2012, Nuremberg, Germany}, publisher = {Design \& Elektronik [i.e. WEKA-Fachmedien]}, address = {Haar}, year = {2012}, language = {en} } @inproceedings{vonBergPrinzSteffens2022, author = {von Berg, Markus and Prinz, Lukas and Steffens, Jochen}, title = {Comparing individual perception of timbre and reverberance}, address = {Gyeoungju, S{\"u}dkorea}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-38706}, pages = {5}, year = {2022}, abstract = {Room reverberation alters the spatial impression and timbre of a sound by modulating its spectral and temporal characteristics. Thus, we argue that, on a perceptual level, reverberation basically breaks down into interaural differences and spectro-temporal cues and that the separation of a perceived timbre into a sound source and a surrounding room is a purely cognitive process. To investigate the connection between the perception of reverberation cues and timbre analysis, the sensitivity for changes in reverberation was compared to timbre perception abilities. The Timbre Perception Test was used to measure the perception of the temporal envelope, spectral centroid, and spectral flux of artificial sounds. Sensitivity for changes in reverberation time was tested with a discrimination task using speech and noise with speech-alike spectral and temporal envelopes as source signals. Musical and acoustical expertise was assessed through the Goldsmiths Musical Sophistication Index and self-reports on experience with and knowledge of acoustics. There was a considerable correlation between timbre and reverberance perception ability, but timbre perception and academic experience predicted only 41\% of the variance in reverberance perception. Still, perception abilities related to similar acoustical phenomena seem to be better indicators of listening skills than self-reports on acoustical or musical expertise.}, language = {en} } @incollection{deBanffyHall2020, author = {de B{\´a}nffy-Hall, Alicia}, title = {Community Music Nell 'Istruzione Superiore in Germania}, series = {Donare-donarsi}, volume = {Ars musicalis, 4}, booktitle = {Donare-donarsi}, editor = {Coppi, Antonella}, publisher = {Libreria musicale italiana}, address = {Lucca}, isbn = {8870969606}, year = {2020}, language = {en} } @inproceedings{WillinghamGerardYerichuketal.2018, author = {Willingham, Lee and Gerard, Yun and Yerichuk, Deanna and de B{\´a}nffy-Hall, Alicia}, title = {Community Music in Higher Education : Addressing Excellence (Standards) and Inclusivity (Accessibility)}, series = {Proceedings of the XV International Seminar of the ISME Commission on Community Music Activity Tbilisi State University, Tbilisi, Georgia 10th-14th}, booktitle = {Proceedings of the XV International Seminar of the ISME Commission on Community Music Activity Tbilisi State University, Tbilisi, Georgia 10th-14th}, editor = {Camlin, Dave}, address = {Tbilisi, Georgia}, pages = {262 -- 297}, year = {2018}, language = {en} } @incollection{VoigtDobnerFerrietal.2016, author = {Voigt, Christian and Dobner, Susanne and Ferri, Mireia and Hahmann, Stefan and Gareis, Karsten}, title = {Community Engagement Strategies for Crowdsourcing Accessibility Information}, series = {Computers Helping People with Special Needs}, volume = {Lecture Notes in Computer Science: 9759}, booktitle = {Computers Helping People with Special Needs}, editor = {Miesenberger, Klaus and B{\"u}hler, Christian and Penaz, Petr}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-319-41266-5}, doi = {10.1007/978-3-319-41267-2_35}, pages = {257 -- 264}, year = {2016}, language = {en} } @incollection{FranzSizov2008, author = {Franz, Thomas and Sizov, Sergej}, title = {Communication Systems for Semantic Work Environments}, series = {Emerging Technologies for Semantic Work Environments}, booktitle = {Emerging Technologies for Semantic Work Environments}, editor = {Rech, J{\"o}rg and Decker, Bj{\"o}rn and Ras, Eric}, publisher = {IGI Global}, address = {Hershey}, doi = {10.4018/978-1-59904-877-2.ch002}, pages = {16 -- 32}, year = {2008}, language = {en} } @inproceedings{DrochtertGeiger2015, author = {Drochtert, Daniel and Geiger, Christian}, title = {Collaborative magic lens graph exploration}, series = {SIGGRAPH Asia 2015 Mobile Graphics and Interactive Applications, Kobe, 02.11.2015-06.11.2015}, booktitle = {SIGGRAPH Asia 2015 Mobile Graphics and Interactive Applications, Kobe, 02.11.2015-06.11.2015}, publisher = {ACM}, address = {New York}, isbn = {9781450339285}, doi = {10.1145/2818427.2818465}, pages = {1 -- 3}, year = {2015}, language = {en} } @inproceedings{SteffensMuellerSchulzetal.2019, author = {Steffens, Jochen and M{\"u}ller, Franz and Schulz, Melanie and Gibson, Samuel}, title = {Cognitive load influences the evaluation of complex acoustical scenarios}, series = {Proceedings of the 23rd International Congress on Acoustics}, booktitle = {Proceedings of the 23rd International Congress on Acoustics}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, address = {Aachen}, isbn = {978-3-939296-15-7}, doi = {10.18154/RWTH-CONV-239577}, year = {2019}, language = {en} } @article{LiangRuessAbdalla2016, author = {Liang, Ke and Ruess, Martin and Abdalla, Mostafa}, title = {Co-rotational finite element formulation used in the Koiter-Newton method for nonlinear buckling analyses}, series = {Finite Elements in Analysis and Design}, volume = {116}, journal = {Finite Elements in Analysis and Design}, publisher = {Elsevier}, issn = {0168-874X}, doi = {10.1016/j.finel.2016.03.006}, pages = {38 -- 54}, year = {2016}, language = {en} } @article{AntonNebelGoebeletal.2016, author = {Anton, Johan and Nebel, Janine and G{\"o}bel, Christoph and Gabrysch, Thomas and Song, Huiqing and Froese, Christian and Ruland, Holger and Muhler, Martin and Kaluza, Stefan}, title = {CO Hydrogenation to Higher Alcohols over Cu-Co-Based Catalysts Derived from Hydrotalcite-Type Precursors}, series = {Topics in Catalysis}, volume = {59}, journal = {Topics in Catalysis}, number = {15-16}, publisher = {Springer Nature}, doi = {10.1007/s11244-016-0663-2}, pages = {1361 -- 1370}, year = {2016}, language = {en} } @inproceedings{LangmannStiller2017, author = {Langmann, Reinhard and Stiller, Michael}, title = {Cloud-based industrial control services - The next generation PLC?}, series = {Online Engineering \& Internet of Things: Proceedings of the 14th International Conference on Remote Engineering and Virtual Instrumentation REV 2017, held 15-17 March 2017, Columbia University, New York, USA}, volume = {Lecture Notes in Networks and Systems : 22}, booktitle = {Online Engineering \& Internet of Things: Proceedings of the 14th International Conference on Remote Engineering and Virtual Instrumentation REV 2017, held 15-17 March 2017, Columbia University, New York, USA}, editor = {Auer, Michel E. and Zutin, Danilo G.}, publisher = {Springer Nature}, address = {Cham}, isbn = {978-3-319-64351-9}, issn = {2190-4111}, doi = {10.1007/978-3-319-64352-6_1}, pages = {3 -- 18}, year = {2017}, language = {en} } @inproceedings{HelmSpliethoffNeef2007, author = {Helm, Peter and Spliethoff, Hartmut and Neef, Matthias}, title = {Closing the Gap: Measuring Bristle Blow Down of Brush Seals}, series = {19 th International Conference on Fluid Sealing, Poitiers}, booktitle = {19 th International Conference on Fluid Sealing, Poitiers}, address = {Poitiers}, year = {2007}, language = {en} } @article{GirodBreitkreuzGerstneretal.2018, author = {Girod, Kai and Breitkreuz, Klaas and Gerstner, Andrea and Marzi, Thomas and Schulzke, Tim and Kaluza, Stefan}, title = {Close-to-Practice Investigations of Heterogeneously Catalyzed Syngas Conversions in Slurry and Fixed-Bed Reactor Systems}, series = {Chemie Ingenieur Technik}, volume = {90}, journal = {Chemie Ingenieur Technik}, number = {5}, publisher = {Wiley}, issn = {1522-2640}, doi = {10.1002/cite.201700143}, pages = {690 -- 695}, year = {2018}, language = {en} } @inproceedings{TiatorFischerGerhardtetal.2018, author = {Tiator, Marcel and Fischer, Ben and Gerhardt, Laurin and Nowottnik, David and Preu, Hendrik and Geiger, Christian}, title = {Cliffhanger-VR}, series = {2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), Reutlingen, 18.03.2018 - 22.03.2018}, booktitle = {2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), Reutlingen, 18.03.2018 - 22.03.2018}, publisher = {IEEE}, isbn = {978-1-5386-3365-6}, doi = {10.1109/VR.2018.8446506}, pages = {1 -- 2}, year = {2018}, language = {en} } @inproceedings{AdamWalterBackesetal.2016, author = {Adam, Mario and Walter, D. and Backes, Klaus and Steinweg, Jan}, title = {Classification of Hydraulic Designs and Hardware-in-the-loop-Tests of Solar Assisted Heating Systems for Multi-Family Houses}, series = {2016 International Energy and Sustainability Conference (IESC), 30.06.-1.07.2016, Cologne}, booktitle = {2016 International Energy and Sustainability Conference (IESC), 30.06.-1.07.2016, Cologne}, publisher = {IEEE}, address = {K{\"o}ln}, doi = {10.1109/IESC.2016.7569494}, pages = {1 -- 6}, year = {2016}, language = {en} } @inproceedings{DewitzLadwigSteinickeetal.2018, author = {Dewitz, Bastian and Ladwig, Philipp and Steinicke, Frank and Geiger, Christian}, title = {Classification of Beyond-Reality Interaction Techniques in Spatial Human-Computer Interaction}, series = {Proceedings of the Symposium on Spatial User Interaction, SUI '18: Symposium on Spatial User Interaction, Berlin, 13.10.2018-14.10.2018}, booktitle = {Proceedings of the Symposium on Spatial User Interaction, SUI '18: Symposium on Spatial User Interaction, Berlin, 13.10.2018-14.10.2018}, publisher = {ACM}, address = {New York}, isbn = {9781450357081}, doi = {10.1145/3267782.3274680}, pages = {185}, year = {2018}, language = {en} } @incollection{Virchow2004, author = {Virchow, Fabian}, title = {Civil War as Race War: How the German Far Right Perceives the War in the Balkans}, series = {Neo-Medievalism and Civil Wars}, booktitle = {Neo-Medievalism and Civil Wars}, editor = {Winn, Neil}, publisher = {Routledge}, address = {London}, isbn = {9780429230318}, year = {2004}, language = {en} } @article{KacsoVidreanNiemannBaidocetal.2018, author = {Kacso-Vidrean, Lorand and Niemann, J{\"o}rg and Baidoc, Raluca and Pisla, Adrian}, title = {Change Management Aspects in Solar Energy Implementation}, series = {Procedia - Social and Behavioral Sciences}, volume = {238}, journal = {Procedia - Social and Behavioral Sciences}, publisher = {Elsevier}, doi = {10.1016/j.sbspro.2018.04.021}, pages = {432 -- 441}, year = {2018}, subject = {FliX}, language = {en} } @incollection{ArdeleanBaidocOnigaNiemannetal.2019, author = {Ardelean-Baidoc, Raluca and Oniga, Gabriel and Niemann, J{\"o}rg and Sava, Adriana and P{\^i}slă, Adrian and (Keine Angabe),}, title = {Change Management Aspects in Developing the International Airport "Avram Iancu" Cluj}, series = {The proceedings of the 14th European Conference on Innovation and Entrepreneurship, 19-20 September 2019}, booktitle = {The proceedings of the 14th European Conference on Innovation and Entrepreneurship, 19-20 September 2019}, publisher = {ACPI}, isbn = {9781912764358}, doi = {10.34190/ECIE.19.092}, pages = {10}, year = {2019}, language = {en} } @inproceedings{Herder2000, author = {Herder, Jens}, title = {Challenges of Virtual Sets: From Broadcasting to Interactive Media}, series = {Seventh International Workshop on Human}, booktitle = {Seventh International Workshop on Human}, publisher = {University of Aizu}, address = {Aizu-Wakamatsu}, pages = {13 -- 17}, year = {2000}, abstract = {Virtual sets have evolved from computer-generated, prerendered 2D backgrounds to realtime, responsive 3D computer graphics and are nowadays standard repertoire of broadcasting divisions. The graphics, which are combined with real video feed becoming moresophisticated, real looking and more responsive. We will look at the recent developments and suggest further developments like integration of spatial audio into the studio production and generating interactive media streams. Educational institutes recognize the demands of the rising media industry and established new courses on media technology like the Duesseldorf University of Applied Sciences.}, language = {en} } @incollection{HamelKaluzaUnger2015, author = {Hamel, Christian and Kaluza, Stefan and Unger, Christoph}, title = {Catalytic tar reforming of biomass-derived synthesis gas: Influence of the catalyst, gas composition and sulfur poisoning}, series = {Preprints of the DGMK-Conference "Synthesis Gas Chemistry",October 7 - 9, 2015, Dresden}, volume = {DGMK Tagungsbericht, 2015,2}, booktitle = {Preprints of the DGMK-Conference "Synthesis Gas Chemistry",October 7 - 9, 2015, Dresden}, editor = {Ernst, Stefan}, publisher = {DGMK}, address = {Hamburg}, organization = {DGMK}, isbn = {978-3-941721-56-2}, pages = {139 -- 146}, year = {2015}, language = {en} } @article{WiesmannYounSuhKaluzaetal.2020, author = {Wiesmann, Thomas and Youn Suh, Sung and Kaluza, Stefan and Lohmann, Heiko and Zeidler-Fandrich, Barbara}, title = {Catalytic Oxygen Removal from Synthetic Coke Oven Gas: A Comparison of Sulfided CoMo/γ-Al 2 O 3 and NiMo/γ-Al 2 O 3 Catalysts with Pt/γ-Al 2 O 3 as Benchmark Catalyst}, series = {Chemie Ingenieur Technik}, volume = {92}, journal = {Chemie Ingenieur Technik}, number = {10}, publisher = {Wiley}, doi = {10.1002/cite.202000067}, pages = {1533 -- 1541}, year = {2020}, language = {en} } @article{FailingKaluzaStrucks2023, author = {Failing, Luisa and Kaluza, Stefan and Strucks, Peter}, title = {Catalytic CO2 methanation: Providing optimal test conditions for kinetic investigations}, series = {Chemie Ingenieur Technik}, volume = {95}, journal = {Chemie Ingenieur Technik}, number = {5}, publisher = {Wiley}, issn = {1522-2640}, doi = {10.1002/cite.202200201}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40026}, pages = {749 -- 753}, year = {2023}, abstract = {In the context of using renewable energies and recycling climate-changing gases, methanation of CO2 provides one possibility. However, volatile availability of renewable energies for hydrogen production and fluctuating CO2streams from different sources lead to enhanced demand in investigating the influence of dynamic process operation on the catalyst performance, including detailed kinetic characterization. Reliable kinetic measurements require isothermal temperature control and absence of macrokinetic diffusion limitations. Both were investigated in this work while the determination of steady-state kinetic parameters is part of ongoing studies. Furthermore, a detailed analysis with respect to the long-term-stability of the nickel-based catalyst was performed}, language = {en} } @article{BordoloiSanchezNoeietal.2014, author = {Bordoloi, Ankur and Sanchez, Miguel and Noei, Heshmat and Kaluza, Stefan and Großmann, Dennis and Wang, Yuemin and Gr{\"u}nert, Wolfgang and Muhler, Martin}, title = {Catalytic Behaviour of Mesoporous Cobalt-Aluminum Oxides for CO Oxidation}, series = {Journal of Catalysts}, journal = {Journal of Catalysts}, publisher = {Hindawi}, issn = {2314-5110}, doi = {10.1155/2014/807545}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34344}, pages = {1 -- 9}, year = {2014}, language = {en} } @inproceedings{FeitschStrobelGeiger2013, author = {Feitsch, Jochen and Strobel, Marco and Geiger, Christian}, title = {Caruso: augmenting users with a tenor's voice}, series = {Proceedings of the 4th Augmented Human International Conference on - AH '13, 07.03.2013 - 08.03.2013, Stuttgart}, booktitle = {Proceedings of the 4th Augmented Human International Conference on - AH '13, 07.03.2013 - 08.03.2013, Stuttgart}, editor = {Schmidt, Albrecht and Bulling, Andreas and Holz, Christian}, publisher = {ACM Press}, address = {New York}, isbn = {9781450319041}, doi = {10.1145/2459236.2459280}, pages = {239 -- 240}, year = {2013}, language = {en} } @inproceedings{NoltingSpiegelReichetal.2018, author = {Nolting, Lars and Spiegel, Thomas and Reich, Marius and Adam, Mario and Praktiknjo, Aaron}, title = {Can Energy System Modeling benefit from Artificial Neural Networks? Application of Two-Stage Metamodels to Reduce Computation of Security of Supply Assessments (Best Application Paper Award)}, series = {CIE - 48th International Conference on Computers \& Industrial Engineering, 02.-05.12.2018, Auckland / New Zealand}, booktitle = {CIE - 48th International Conference on Computers \& Industrial Engineering, 02.-05.12.2018, Auckland / New Zealand}, address = {Auckland}, year = {2018}, language = {en} } @article{NoltingSpiegelReichetal.2020, author = {Nolting, Lars and Spiegel, Thomas and Reich, Marius and Adam, Mario and Praktiknjo, Aaron}, title = {Can energy system modeling benefit from artificial neural networks? Application of two-stage metamodels to reduce computation of security of supply assessments}, series = {Computers \& Industrial Engineering}, volume = {142}, journal = {Computers \& Industrial Engineering}, publisher = {Elsevier}, issn = {0360-8352}, doi = {10.1016/j.cie.2020.106334}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-26979}, year = {2020}, language = {en} } @inproceedings{DeckertKalefeldKutz2022, author = {Deckert, Carsten and Kalefeld, Jannik and Kutz, Martin}, title = {Business Model Innovation for the Internet of Things}, series = {Lecture Notes in Information Systems and Organisation: Digital Twins and New Business Models}, volume = {LNISO,volume 54}, booktitle = {Lecture Notes in Information Systems and Organisation: Digital Twins and New Business Models}, editor = {Kumar, Vikas and Leng, Jiewu and Akberdina, Victoria and Kuzmin, Evgeny}, publisher = {Springer Nature Switzerland}, address = {Cham}, isbn = {978-3-030-94617-3}, issn = {2195-4968}, doi = {10.1007/978-3-030-94617-3_23}, pages = {321 -- 333}, year = {2022}, language = {en} } @article{WojciechowskiPogscheba2022, author = {Wojciechowski, Manfred and Pogscheba, Patrick}, title = {Building a COVID-Safe Navigation App Using a Meta-Model Based Context Server}, series = {sensors}, volume = {22}, journal = {sensors}, number = {24}, publisher = {MDPI}, issn = {1424-8220}, doi = {10.3390/s22249890}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-39570}, pages = {1 -- 14}, year = {2022}, abstract = {Building context-aware applications is an already widely researched topic. It is our belief that context awareness has the potential to supplement the Internet of Things, when a suitable methodology including supporting tools will ease the development of context-aware applications. We believe that a meta-model based approach can be key to achieving this goal. In this paper, we present our meta-model based methodology, which allows us to define and build application-specific context models and the integration of sensor data without any programming. We describe how that methodology is applied with the implementation of a relatively simple context-aware COVID-safe navigation app. The outcome showed that programmers with no experience in context-awareness were able to understand the concepts easily and were able to effectively use it after receiving a short training. Therefore, context-awareness is able to be implemented within a short amount of time. We conclude that this can also be the case for the development of other context-aware applications, which have the same context-awareness characteristics. We have also identified further optimization potential, which we will discuss at the conclusion of this article.}, language = {en} } @inproceedings{NeefHepermannSuerkenetal.2007, author = {Neef, Matthias and Hepermann, Florian and S{\"u}rken, Norbert and Schettel, Joachim}, title = {Brush Seal Porosity Modeling: Applicability and Limitations}, series = {ETC7 - 7th Conference on Turbomachinery, Athens}, booktitle = {ETC7 - 7th Conference on Turbomachinery, Athens}, address = {Athens}, year = {2007}, language = {en} } @inproceedings{Dahm2005, author = {Dahm, Markus}, title = {Broad study on the usability of mobile phones}, series = {Conf. Proc. Humans and Computers HuC 2005, Aizu, Japan}, booktitle = {Conf. Proc. Humans and Computers HuC 2005, Aizu, Japan}, address = {Aizu}, pages = {249 -- 254}, year = {2005}, abstract = {A mobile phone the size of a candy bar offers dozens of complex functions, a masterpiece of engineering. Unfortunately, the more functions are available, the less they are accessible to the average user. The design of the user interface suffers from a lack of suitability for the tasks, does not conform to user expectations and a suboptimal self-descriptiveness. The usability of modern mobile phones was tested in a broad survey with over 1300 participants. An internet based simulation offered tasks and an online evaluation. It could be pointed out that mobile phones are not only hard to access for novices but also those who consider themselves experts have difficulties when confronted with unknown functions or another brand of phone. Approaches to increase the usability are discussed.}, language = {en} } @inproceedings{deBanffyHall2014, author = {de B{\´a}nffy-Hall, Alicia}, title = {Bridging Scholarship and Practice in Community Music through Action Research}, series = {CMA XIV: Listening to the World: Experiencing and Connecting the Knowledge from Community Music Proceedings from the International Society for Music Education}, booktitle = {CMA XIV: Listening to the World: Experiencing and Connecting the Knowledge from Community Music Proceedings from the International Society for Music Education}, editor = {Cohen, Mary}, address = {Salvador, Brazil}, isbn = {978-0-9942044}, pages = {94 -- 101}, year = {2014}, language = {en} } @inproceedings{HelmPugachevNeef2008, author = {Helm, Peter and Pugachev, Alexander and Neef, Matthias}, title = {Breaking the Swirl With Brush Seals: Numerical Modeling and Experimental Evidence}, series = {Proceedings of the ASME Turbo Expo 2008 : presented at the 2008 ASME Turbo Expo, June 9 - 13, 2008, Berlin, Germany}, volume = {4}, booktitle = {Proceedings of the ASME Turbo Expo 2008 : presented at the 2008 ASME Turbo Expo, June 9 - 13, 2008, Berlin, Germany}, publisher = {ASME}, address = {New York}, organization = {American Society of Mechanical Engineers Corporation; International Gas Turbine Institute Corporation}, isbn = {978-0-7918-4314-7}, doi = {10.1115/GT2008-50257}, pages = {1387 -- 1396}, year = {2008}, abstract = {Striving for smaller losses in turbomachinery has led to many advancements in the design of seals. Modern sealing concepts such as brush seals hold a great potential to increase the efficiency of both flight engines and stationary turbines. At the same time, in order to maintain stable operating conditions of the rotor, swirl-induced forces must be kept at a minimum in the sealing channels. Therefore, the influence of the permeable and flexible bristle pack of brush seals on the flow around the rotor surface must be known. In this paper the swirl flow in the cavities of two different seal geometries is studied experimentally and numerically. A conventional three-tooth labyrinth serves as a reference. A second seal arrangement with a bristle pack upstream of two teeth is compared with the reference labyrinth. The swirl is evaluated experimentally from total and static pressure measurements in various axial and circumferential positions. Additionally, the axial swirl distribution is calculated using computational fluid dynamics (CFD). Here, the numerical model of the brush seal is based on the porous medium approach and is calibrated using the experimental values of the leakage and the bristle clearance by adjusting the thickness of the bristle pack. The calibrated CFD model is then used to study the impact of the brush seal on the swirl component of the sealing flow. The observed significant decrease of the swirl by the brush seal shows good agreement with the experimental data. The impact of changes in bristle pack clearance on the swirl is also investigated and compared with experimental evidence. The aim is to show that the brush seals have a natural tendency to interrupt seal swirl. They can therefore be used for swirl control in order to create a beneficial impact on the dynamic stability of turbomachines.}, language = {en} } @article{KochOstermannSteinhageetal.2015, author = {Koch, Sabine C. and Ostermann, Thomas and Steinhage, Anna and Kende, Philip and Haller, Karl and Chyle, Fabian}, title = {Breaking barriers: Evaluating an arts-based emotion regulation training in prison}, series = {The Arts in Psychotherapy}, volume = {42}, journal = {The Arts in Psychotherapy}, publisher = {Elsevier}, doi = {10.1016/j.aip.2014.10.008}, pages = {41 -- 49}, year = {2015}, language = {en} } @article{ChyleOstermannBoehm2018, author = {Chyle, Fabian and Ostermann, Thomas and Boehm, Katja}, title = {Body- and movement-based interventions with male offenders - a narrative review}, series = {International Journal of Comparative and Applied Criminal Justice}, volume = {42}, journal = {International Journal of Comparative and Applied Criminal Justice}, number = {4}, publisher = {Taylor \& Francis}, issn = {0192-4036}, doi = {10.1080/01924036.2017.1364278}, pages = {359 -- 375}, year = {2018}, language = {en} } @article{BaeklerHehl2011, author = {Baekler, Peter and Hehl, Friedrich W.}, title = {Beyond Einstein-Cartan gravity: quadratic torsion and curvature invariants with even and odd parity including all boundary terms}, series = {Classical and Quantum Gravity}, volume = {28}, journal = {Classical and Quantum Gravity}, number = {21}, publisher = {IOP}, doi = {10.1088/0264-9381/28/21/215017}, year = {2011}, language = {en} } @article{Franz1996, author = {Franz, J{\"u}rgen}, title = {Benefits of Communication Methods in Environmental Protection}, series = {IETE Technical Review}, volume = {13}, journal = {IETE Technical Review}, number = {3}, publisher = {Taylor \& Francis}, doi = {10.1080/02564602.1996.11416600}, pages = {153 -- 162}, year = {1996}, language = {en} } @techreport{DeckertBussHasencleveretal.2016, author = {Deckert, Carsten and Buß, Mareike and Hasenclever, Stephanie and M{\"a}ckel, Frederic and Nyssen Guill{\´e}n, Viola and Silverio, Isabell and Wegner, Eileen}, title = {Beer Picking Game - Entwicklung und Realisierung eines Planspiels zur Simulation eines Kommissionierbereichs}, series = {CBS Working Paper Series}, volume = {2}, journal = {CBS Working Paper Series}, publisher = {Cologne Business School}, address = {K{\"o}ln}, organization = {Cologne Business School}, year = {2016}, language = {en} } @techreport{DeckertRehbergRuetten2017, author = {Deckert, Carsten and Rehberg, David and R{\"u}tten, Pia}, title = {Beer Inventory Game: Entwicklung und Realisierung eines Planspiels zur Simulation selektiver Lagerhaltungsstrategien im Distributionsnetzwerk}, series = {CBS Working Paper Series}, volume = {3}, journal = {CBS Working Paper Series}, publisher = {Cologne Business School}, address = {K{\"o}ln}, organization = {Cologne Business School}, doi = {10.13140/RG.2.2.31366.88641}, year = {2017}, language = {en} } @inproceedings{FaberAnthrakidisLanzetal.2011, author = {Faber, Christian and Anthrakidis, Anette and Lanz, Marco and Rusack, Markus and Weis, Fabian and Adam, Mario and Schramm, Sebastian}, title = {Barriers to solar process heat applications,}, series = {SWC 2011: ISES Solar World Congress, 28 August - 2 September 2011, Kassel, Germany}, booktitle = {SWC 2011: ISES Solar World Congress, 28 August - 2 September 2011, Kassel, Germany}, address = {Kassel}, pages = {1326 -- 1334}, year = {2011}, language = {en} } @inproceedings{HerderBrettschneiderdeMooijetal.2019, author = {Herder, Jens and Brettschneider, Nico and de Mooij, Jeroen and Ryskeldiev, Bektur}, title = {Avatars for Co-located Collaborations in HMD-based Virtual Environments}, series = {IEEE VR 2019, 26th IEEE Conference on Virtual Reality and 3D User Interfaces, Osaka, March, 2019}, booktitle = {IEEE VR 2019, 26th IEEE Conference on Virtual Reality and 3D User Interfaces, Osaka, March, 2019}, publisher = {IEEE}, address = {Osaka}, doi = {10.1109/VR.2019.8798132}, pages = {968 -- 969}, year = {2019}, abstract = {Multi-user virtual reality is transforming towards a social activity that is no longer only used by remote users, but also in large-scale location-based experiences. Usage of realtime-tracked avatars in co-located business-oriented applications with a "guide-user-scenario" is examined for user-related factors of Spatial Presence, Social Presence, User Experience and Task Load. A user study was conducted in order to compare both techniques of a realtime-tracked avatar and a non-visualised guide. Results reveal that the avatar-guide enhanced and stimulated communicative processes while facilitating interaction possibilities and creating a higher sense of mental immersion for users and engagement.}, language = {en} } @article{Braun2022, author = {Braun, Alexander}, title = {Automotive mass production of camera systems: Linking image quality to AI performance}, series = {tm - Technisches Messen}, journal = {tm - Technisches Messen}, publisher = {Walter de Gruyter}, issn = {2196-7113}, doi = {10.1515/teme-2022-0029}, year = {2022}, abstract = {Artificial intelligence methods based on machine learning or artificial neural networks have become indispensable in camera-based driver assistance systems, and also represent an essential building block for future autonomous driving. However, the great successes of these evaluation methods in environment perception and also driving planning are accompanied by equally great challenges in the validation and verification of these systems. One of the essential aspects for this is the required guaranteed safety of the functions under mass production conditions of the vehicles. This article explains this point of view using a detailed example from the field of camera-based driver assistance systems: the determination of inspection limits at the end of the production line. The camera is one of the most important sensor modalities for vehicle environment sensing and as such, the quality of the camera systems plays a key role in the safety argumentation of the overall system. Several illustrative application examples (role of simulations, calibration, influence of the windshield) will be presented. The basic ideas presented can be well transferred to the other sensor modalities (lidar, radar, ToF, etc.). The investigations/evidence show that doubts are allowed whether or how fast autonomous driving on level L4/5 will take hold as robotaxis or - even more challenging - in private ownership on a larger scale.}, language = {en} } @incollection{MuellerSchneidersHoldMeuteretal.2009, author = {M{\"u}ller-Schneiders, Stefan and Hold, Stephanie and Meuter, Mirko and M{\"u}ller, Dennis and Nunn, Christian}, title = {Augmented reality in advanced driver assistance systems}, series = {Conference on Artificial Intelligence, KI2009, Workshop Proceedings}, booktitle = {Conference on Artificial Intelligence, KI2009, Workshop Proceedings}, year = {2009}, language = {en} } @inproceedings{DeppeNemitzHerder2018, author = {Deppe, Robert and Nemitz, Oliver and Herder, Jens}, title = {Augmented reality for supporting manual non-destructive ultrasonic testing of metal pipes and plates}, series = {Workshop Proceedings / Tagungsband: Virtuelle und Erweiterte Realit{\"a}t - 15. Workshop der GI-Fachgruppe VR/AR}, booktitle = {Workshop Proceedings / Tagungsband: Virtuelle und Erweiterte Realit{\"a}t - 15. Workshop der GI-Fachgruppe VR/AR}, editor = {Herder, Jens and Geiger, Christian and D{\"o}rner, Ralf and Grimm, Paul}, publisher = {Shaker Verlag}, address = {Herzogenrath}, isbn = {978-3-8440-6215-1}, doi = {10.2370/9783844062151}, pages = {45 -- 52}, year = {2018}, abstract = {We describe an application of augmented reality technology for non-destructive testing of products in the metal-industry. The prototype is created with hard- and software, that is usually employed in the gaming industry, and delivers positions for creating ultra- sonic material scans (C-scans). Using a stereo camera in combination with an hmd enables realtime visualisation of the probes path, as well as the setting of virtual markers on the specimen. As a part of the implementation the downhill simplex optimization algorithm is implemented to fit the specimen to a cloud of recorded surface points. The accuracy is statistically tested and evaluated with the result, that the tracking system is accurate up to ca. 1-2 millimeters in well set-up conditions. This paper is of interest not only for research institutes of the metal-industry, but also for any areas of work, in which the enhancement with augmented reality is possible and a precise tracking is necessary.}, language = {en} } @article{SkodaSteffensKueppers2011, author = {Skoda, Sabrina and Steffens, Jochen and K{\"u}ppers, Thomas}, title = {Auditory-proprioceptive interaction - How do acceleration forces influence the evaluation of driving sounds?}, series = {Journal of the Acoustical Society of America}, volume = {130}, journal = {Journal of the Acoustical Society of America}, number = {4}, publisher = {AIP}, year = {2011}, language = {en} } @inproceedings{BrettschneiderHerderdeMooijetal.2019, author = {Brettschneider, Nico and Herder, Jens and de Mooij, Jeroen and Ryskeldiev, Bektur}, title = {Audio vs. Visual Avatars as Guides in Virtual Environments}, series = {21th International Conference on Human and Computer, HC-2018, March 27-28, 2019, Shizuoka University, Hamamatsu, Japan.}, booktitle = {21th International Conference on Human and Computer, HC-2018, March 27-28, 2019, Shizuoka University, Hamamatsu, Japan.}, editor = {Herder, Jens}, publisher = {Hochschule D{\"u}sseldorf}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, doi = {10.20385/0hrj-qc02}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-23859}, pages = {9}, year = {2019}, abstract = {Through constant technical progress, multi-user virtual reality is transforming towards a social activity that is no longer only used by remote users, but also in large-scale location-based experiences. We evaluate the usage of realtime-tracked avatars in co-located business-oriented applications in a "guide-user-scenario" in comparison to audio only instructions. The present study examined the effect of an avatar-guide on the user-related factors of Spatial Presence, Social Presence, User Experience and Task Load in order to propose design guidelines for co-located collaborative immersive virtual environments. Therefore, an application was developed and a user study with 40 participants was conducted in order to compare both guiding techniques of a realtime-tracked avatar guide and a non-visualised guide with otherwise constant conditions. Results reveal that the avatar-guide enhanced and stimulated communicative processes while facilitating interaction possibilities and creating a higher sense of mental immersion for users. Furthermore, the avatar-guide appeared to make the storyline more engaging and exciting while helping users adapt to the medium of virtual reality. Even though no assertion could be made concerning the Task Load factor, the avatar-guide achieved a higher subjective value on User Experience. Due to the results, avatars can be considered valuable social elements in the design of future co-located collaborative virtual environments.}, language = {en} } @article{NowakSchwarzSuedekum2016, author = {Nowak, Verena and Schwarz, Christian and Suedekum, Jens}, title = {Asymmetric spiders: Supplier heterogeneity and the organization of firms}, series = {Canadian Journal of Economics/Revue canadienne d'{\´e}conomique}, volume = {49}, journal = {Canadian Journal of Economics/Revue canadienne d'{\´e}conomique}, number = {2}, publisher = {Wiley}, doi = {10.1111/caje.12209}, pages = {663 -- 684}, year = {2016}, language = {en} } @article{HautmannEichelbergerHanischetal.2015, author = {Hautmann, Christopher and Eichelberger, Ilka and Hanisch, Charlotte and Pl{\"u}ck, Julia and Walter, Daniel and D{\"o}pfner, Manfred}, title = {Association between parental emotional symptoms and child antisocial behaviour}, series = {International Journal of Behavioral Development}, volume = {39}, journal = {International Journal of Behavioral Development}, number = {1}, publisher = {sage journals}, doi = {10.1177/0165025414535120}, pages = {43 -- 52}, year = {2015}, language = {en} } @book{BuchholzJerominAsgariehetal.2018, author = {Buchholz, B. and Jeromin, I. and Asgarieh, L. and Echternacht, David and Fan, M. and Repo, S. and Dedekind, K. and Ma, Z. and Gramme, E.}, title = {Asset management for distribution networks with high penetration of distributed energy resources}, address = {Cigr{\´e}}, year = {2018}, language = {en} } @article{BiedermannReichKameieretal.2019, author = {Biedermann, Till M. and Reich, Marius and Kameier, Frank and Adam, Mario}, title = {Assessment of statistical sampling methods and approximation models applied to aeroacoustic and vibroacoustic problems}, series = {Advances in Aircraft and Spacecraft Science}, volume = {6}, journal = {Advances in Aircraft and Spacecraft Science}, number = {6}, publisher = {Techno Press}, issn = {2287-528X}, doi = {10.12989/aas.2019.6.6.531}, pages = {529 -- 550}, year = {2019}, language = {en} } @inproceedings{BiedermannReichKameieretal.2018, author = {Biedermann, Till M. and Reich, Marius and Kameier, Frank and Adam, Mario and Paschereit, C.}, title = {Assessment of Statistical Sampling Methods and Approximation Models Applied to Aeroacoustic and Vibroacoustic Problem}, series = {NOVEM - 6th conference on Noise and Vibration emerging methods, 07.-09.05.2018, Ibiza / Spain}, booktitle = {NOVEM - 6th conference on Noise and Vibration emerging methods, 07.-09.05.2018, Ibiza / Spain}, address = {Ibiza}, year = {2018}, language = {en} } @article{vonBergSteffensWeinzierletal.2021, author = {von Berg, Markus and Steffens, Jochen and Weinzierl, Stefan and M{\"u}llensiefen, Daniel}, title = {Assessing room acoustic listening expertise}, series = {Journal of the Acoustical Society of America}, volume = {150}, journal = {Journal of the Acoustical Society of America}, number = {4}, publisher = {Acoustical Society of America}, doi = {10.1121/10.0006574}, pages = {2539-2548}, year = {2021}, abstract = {Musicians and music professionals are often considered to be expert listeners for listening tests on room acoustics. However, these tests often target acoustic parameters other than those typically relevant in music such as pitch, rhythm, amplitude, or timbre. To assess the expertise in perceiving and understanding room acoustical phenomena, a listening test battery was constructed to measure the perceptual sensitivity and cognitive abilities in the identification of rooms with different reverberation times and different spectral envelopes. Performance in these tests was related to data from the Goldsmiths Musical Sophistication Index, self-reported previous experience in music recording and acoustics, and academic knowledge on acoustics. The data from 102 participants show that sensory and cognitive abilities are both correlated significantly with musical training, analytic listening skills, recording experience, and academic knowledge on acoustics, whereas general interest in and engagement with music do not show any significant correlations. The regression models, using only significantly correlated criteria of musicality and professional expertise, explain only small to moderate amounts (11\%-28\%) of the variance in the "room acoustic listening expertise" across the different tasks of the battery. Thus, the results suggest that the traditional criteria for selecting expert listeners in room acoustics are only weak predictors of their actual performances.}, language = {en} } @article{HeizmannBraunHuetteletal.2020, author = {Heizmann, Michael and Braun, Alexander and H{\"u}ttel, Markus and Kl{\"u}ver, Christina and Marquardt, Erik and Overdick, Michael and Ulrich, Markus}, title = {Artificial intelligence with neural networks in optical measurement and inspection systems}, series = {at - Automatisierungstechnik}, volume = {68}, journal = {at - Automatisierungstechnik}, number = {6}, publisher = {De Gruyter}, doi = {10.1515/auto-2020-0006}, pages = {477 -- 487}, year = {2020}, language = {en} } @article{PriesmannMuenchTillmannsetal.2024, author = {Priesmann, Jan and M{\"u}nch, Justin and Tillmanns, Marius and Ridha, E. and Spiegel, T. and Reich, Marius and Adam, Mario and Nolting, L. and Praktiknjo, Aaron}, title = {Artificial intelligence and design of experiments for resource adequacy assessment in power systems}, series = {Energy Strategy Reviews}, volume = {53}, journal = {Energy Strategy Reviews}, publisher = {Elsevier}, issn = {2211-467X}, doi = {10.1016/j.esr.2024.101368}, year = {2024}, language = {en} } @unpublished{PriesmannMuenchRidhaetal.2021, author = {Priesmann, Jan and M{\"u}nch, Justin and Ridha, Elias and Spiegel, Thomas and Reich, Marius and Adam, Mario and Nolting, Lars and Praktiknjo, Aaron}, title = {Artificial Intelligence and Design of Experiments for Assessing Security of Electricity Supply: A Review and Strategic Outlook}, doi = {https://doi.org/10.48550/arXiv.2112.04889}, year = {2021}, abstract = {Assessing the effects of the energy transition and liberalization of energy markets on resource adequacy is an increasingly important and demanding task. The rising complexity in energy systems requires adequate methods for energy system modeling leading to increased computational requirements. Furthermore, with complexity, uncertainty increases likewise calling for probabilistic assessments and scenario analyses. To adequately and efficiently address these various requirements, new methods from the field of data science are needed to accelerate current methods. With our systematic literature review, we want to close the gap between the three disciplines (1) assessment of security of electricity supply, (2) artificial intelligence, and (3) design of experiments. For this, we conduct a large-scale quantitative review on selected fields of application and methods and make a synthesis that relates the different disciplines to each other. Among other findings, we identify metamodeling of complex security of electricity supply models using AI methods and applications of AI-based methods for forecasts of storage dispatch and (non-)availabilities as promising fields of application that have not sufficiently been covered, yet. We end with deriving a new methodological pipeline for adequately and efficiently addressing the present and upcoming challenges in the assessment of security of electricity supply.}, language = {en} } @article{PrataDezitterDaviesetal.2016, author = {Prata, A. J. and Dezitter, F. and Davies, I. and Weber, Konradin and Birnfeld, M. and Moriano, D. and Bernardo, C. and Vogel, A. and Prata, G. S. and Mather, T. A. and Thomas, H. E. and Cammas, J. and Weber, M.}, title = {Artificial cloud test confirms volcanic ash detection using infrared spectral imaging}, series = {Scientific reports}, volume = {6}, journal = {Scientific reports}, publisher = {Springer Nature}, doi = {10.1038/srep25620}, year = {2016}, abstract = {Airborne volcanic ash particles are a known hazard to aviation. Currently, there are no means available to detect ash in flight as the particles are too fine (radii < 30 μm) for on-board radar detection and, even in good visibility, ash clouds are difficult or impossible to detect by eye. The economic cost and societal impact of the April/May 2010 Icelandic eruption of Eyjafjallaj{\"o}kull generated renewed interest in finding ways to identify airborne volcanic ash in order to keep airspace open and avoid aircraft groundings. We have designed and built a bi-spectral, fast-sampling, uncooled infrared camera device (AVOID) to examine its ability to detect volcanic ash from commercial jet aircraft at distances of more than 50 km ahead. Here we report results of an experiment conducted over the Atlantic Ocean, off the coast of France, confirming the ability of the device to detect and quantify volcanic ash in an artificial ash cloud created by dispersal of volcanic ash from a second aircraft. A third aircraft was used to measure the ash in situ using optical particle counters. The cloud was composed of very fine ash (mean radii ~10 μm) collected from Iceland immediately after the Eyjafjallaj{\"o}kull eruption and had a vertical thickness of ~200 m, a width of ~2 km and length of between 2 and 12 km. Concentrations of ~200 μg m(-3) were identified by AVOID at distances from ~20 km to ~70 km. For the first time, airborne remote detection of volcanic ash has been successfully demonstrated from a long-range flight test aircraft.}, language = {en} } @article{KuniiHerderMyszkowskietal.1994, author = {Kunii, Tosiyasu L. and Herder, Jens and Myszkowski, Karol and Okunev, Oleg and Okuneva, Galina and Ibusuki, Masumi}, title = {Articulation Simulation for an Intelligent Dental Care System}, series = {Displays}, volume = {15}, journal = {Displays}, number = {3}, pages = {181 -- 188}, year = {1994}, abstract = {CAD/CAM techniques are used increasingly in dentistry for design and fabrication of teeth restorations. An important issue is preserving occlusal contacts of teeth after restoration. Traditional techniques based on the use of casts with mechanical articulators require manual adjustment of occlusal surface, which becomes impractical when hard restoration materials like porcelain are used; they are also time and labor consuming. Most existing computer systems ignore completely such an articulation check, or perform the check at the level of a tooth and its immediate neighbors. We present a new mathematical model and a related user interface for global articulation simulation, developed for the Intelligent Dental Care System project. The aim of the simulation is elimination of the use of mechanical articulators and manual adjustment in the process of designing dental restorations and articulation diagnostic. The mathematical model is based upon differential topological modeling of the jawbs considered as a mechanical system. The user interface exploits metaphors that are familiar to dentists from everyday practice. A new input device designed specifically for use with articulation simulation is proposed.}, language = {en} } @inproceedings{FranzAnsgarStaab2009, author = {Franz, Thomas and Ansgar, Scherp and Staab, Steffen}, title = {Are semantic desktops better?}, series = {Proceedings of the Fifth International Conference on Knowledge Capture, September 1 - 4, 2009, Redondo Beach, California, USA}, booktitle = {Proceedings of the Fifth International Conference on Knowledge Capture, September 1 - 4, 2009, Redondo Beach, California, USA}, editor = {Gil, Yolanda}, publisher = {Association for Computing Machinery}, address = {New York, NY}, isbn = {978-1-60558-658-8}, doi = {10.1145/1597735.1597737}, pages = {1 -- 8}, year = {2009}, language = {en} } @inproceedings{DewitzWicheGeigeretal.2018, author = {Dewitz, Bastian and Wiche, Roman and Geiger, Christian and Steinicke, Frank and Feitsch, Jochen}, title = {AR Sound Sandbox: A Playful Interface for Musical and Artistic Expression}, series = {Intelligent Technologies for Interactive Entertainment. 9th International Conference, INTETAIN 2017, Funchal, Portugal, June 20-22, 2017, Proceedings}, booktitle = {Intelligent Technologies for Interactive Entertainment. 9th International Conference, INTETAIN 2017, Funchal, Portugal, June 20-22, 2017, Proceedings}, editor = {Chisik, Yoram and Holopainen, Jussi and Khaled, Rilla and Luis Silva, Jos{\´e} and Alexandra Silva, Paula}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-319-73061-5}, doi = {10.1007/978-3-319-73062-2_5}, pages = {59 -- 76}, year = {2018}, language = {en} } @inproceedings{RyskeldievCohenHerder2017, author = {Ryskeldiev, Bektur and Cohen, Michael and Herder, Jens}, title = {Applying rotational tracking and photospherical imagery to immersive mobile telepresence and live video streaming groupware}, series = {Proceeding SA '17 SIGGRAPH Asia 2017 Mobile Graphics \& Interactive Applications, Article No. 5}, booktitle = {Proceeding SA '17 SIGGRAPH Asia 2017 Mobile Graphics \& Interactive Applications, Article No. 5}, publisher = {ACM}, address = {New York}, isbn = {978-1-4503-5410-3}, doi = {10.1145/3132787.3132813}, pages = {2}, year = {2017}, abstract = {Mobile live video streaming is becoming an increasingly popular form of interaction both in social media and remote collaboration scenarios. However, in most cases the streamed video does not take mobile devices' spatial data into account (e.g., the viewers do not know the spatial orientation of a streamer), or use such data only in specific scenarios (e.g., to navigate around a spherical video stream).}, language = {en} } @inproceedings{Herder2001, author = {Herder, Jens}, title = {Applications of Spatial Auditory Displays in the Context of Art and Music}, series = {Human Supervision and Control in Engineering and Music}, booktitle = {Human Supervision and Control in Engineering and Music}, publisher = {Universit{\"a}t Kassel}, address = {Kassel}, year = {2001}, language = {en} } @inproceedings{KornmesserBraunBeushausen2001, author = {Kornmesser, Christoph and Braun, Alexander and Beushausen, Volker}, title = {Applicability of different fluorescent dyes for 2D temperature measurements in dense sprays using planar laser induced fluorescence}, series = {Proceedings of the 17th Annual Conference on Liquid Atomization and Spray Systems, 02.06.2001, Z{\"u}rich}, booktitle = {Proceedings of the 17th Annual Conference on Liquid Atomization and Spray Systems, 02.06.2001, Z{\"u}rich}, publisher = {ETH Z{\"u}rich}, address = {Z{\"u}rich}, isbn = {3952224413}, pages = {554 -- 559}, year = {2001}, language = {en} } @article{BiedermannCzeckayHintzenetal.2020, author = {Biedermann, Till M. and Czeckay, Pasquale and Hintzen, Nils and Kameier, Frank and Paschereit, C. O.}, title = {Applicability of Aeroacoustic Scaling Laws of Leading Edge Serrations for Rotating Applications}, series = {acoustics}, volume = {2}, journal = {acoustics}, number = {3}, publisher = {MDPI}, issn = {2624-599X}, doi = {10.3390/acoustics2030030}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40311}, pages = {579 -- 594}, year = {2020}, language = {en} } @incollection{ParreirasSaathoffWalteretal.2009, author = {Parreiras, Fernando Silva and Saathoff, Carsten and Walter, Tobias and Franz, Thomas and Staab, Steffen}, title = {APIs a gogo: Automatic Generation of Ontology APIs'}, series = {ISWeb — Information Systems and Semantic Web, University of Koblenz-Landau}, booktitle = {ISWeb — Information Systems and Semantic Web, University of Koblenz-Landau}, publisher = {University of Koblenz-Landau}, address = {Koblenz}, organization = {University of Koblenz-Landau}, doi = {10.1109/ICSC.2009.90}, pages = {1 -- 7}, year = {2009}, language = {en} } @article{HautmannHoijtinkEichelbergeretal.2013, author = {Hautmann, Christopher and Hoijtink, Herbert and Eichelberger, Ilka and G{\"o}rtz-Dorten, Anja and Hanisch, Charlotte and Pl{\"u}ck, Julia and Walter, Daniel and D{\"o}pfner, Manfred}, title = {Any indication for bias due to participation? Comparison of the effects of a parent management training rated by participating and non-participating parents}, series = {Clinical psychology \& psychotherapy}, volume = {20}, journal = {Clinical psychology \& psychotherapy}, number = {5}, publisher = {Wiley}, doi = {10.1002/cpp.1784}, pages = {384 -- 393}, year = {2013}, language = {en} } @article{QuevalGottkehaskamp2015, author = {Queval, Loic and Gottkehaskamp, Raimund}, title = {Analytical Field Calculation of Modulated Double Helical Coils}, series = {IEEE Transactions on Applied Superconductivity}, volume = {25}, journal = {IEEE Transactions on Applied Superconductivity}, number = {6}, publisher = {IEEE}, doi = {10.1109/tasc.2015.2477377}, pages = {1 -- 7}, year = {2015}, language = {en} } @article{MolloyMuellerDeeganetal.2024, author = {Molloy, Dara and M{\"u}ller, Patrick and Deegan, Brian and Mullins, Darragh and Horgan, Jonathan and Ward, Enda and Jones, Edward and Braun, Alexander and Glavin, Martin}, title = {Analysis of the Impact of Lens Blur on Safety-Critical Automotive Object Detection}, series = {IEEE Access}, volume = {12}, journal = {IEEE Access}, publisher = {IEEE}, issn = {2169-3536}, doi = {10.1109/ACCESS.2023.3348663}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-42999}, pages = {3554 -- 3569}, year = {2024}, abstract = {Camera-based object detection is widely used in safety-critical applications such as advanced driver assistance systems (ADAS) and autonomous vehicle research. Road infrastructure has been designed for human vision, so computer vision, with RGB cameras, is a vital source of semantic information from the environment. Sensors, such as LIDAR and RADAR, are also often utilized for these applications; however, cameras provide a higher spatial resolution and color information. The spatial frequency response (SFR), or sharpness of a camera, utilized in object detection systems must be sufficient to allow a detection algorithm to localize objects in the environment over its lifetime reliably. This study explores the relationship between object detection performance and SFR. Six state-of-the-art object detection models are evaluated with varying levels of lens defocus. A novel raw image dataset is created and utilized, containing pedestrians and cars over a range of distances up to 100-m from the sensor. Object detection performance for each defocused dataset is analyzed over a range of distances to determine the minimum SFR necessary in each case. Results show that the relationship between object detection performance and lens blur is much more complex than previous studies have found due to lens field curvature, chromatic aberration, and astigmatisms. We have found that smaller objects are disproportionately impacted by lens blur, and different object detection models have differing levels of robustness to lens blur}, language = {en} } @article{PfeiffelmannOzmanBenimetal.2022, author = {Pfeiffelmann, Bjorn and Ozman, Cansu and Benim, Ali Cemal and Joos, Franz}, title = {Analysis of the effect of nonuniform surface temperature distribution on the performance of a thermoelectric generator}, series = {Sustainable Energy Technologies and Assessments}, volume = {53}, journal = {Sustainable Energy Technologies and Assessments}, number = {A}, publisher = {Elsevier}, issn = {2213-1388}, doi = {10.1016/j.seta.2022.102375}, year = {2022}, language = {en} } @inproceedings{vonBergSchwoererPrinzetal.2023, author = {von Berg, Markus and Schw{\"o}rer, Paul and Prinz, Lukas and Steffens, Jochen}, title = {Analysis of physical and perceptual properties of room impulse responses: development of an online tool}, series = {Forum Acusticuum 2023: 10th Convention of European Acoustics Association, Turin, Italy, 11th-15th September 2023}, booktitle = {Forum Acusticuum 2023: 10th Convention of European Acoustics Association, Turin, Italy, 11th-15th September 2023}, publisher = {EAA}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-41955}, pages = {8}, year = {2023}, abstract = {Over the past decades, research in room acoustics has established several derivative measures of an impulse response, some of which are incorporated in the ISO 3382 standards. These parameters intend to represent perceptual qualities, but were developed without a consistent modeling of room acoustical perception. More recent research proposed comprehensive inventories of room acoustic perception that are purely based on evaluations by human subjects, such as the Room Acoustical Quality Index (RAQI). In this work RA-QI scores acquired for 70 room impulse responses were predicted from room acoustical parameters. Except for Reverberance, the prediction of RAQI factors performed rather poor. In most cases, the sound source had a greater impact on RAQI scores. All analyses are published in an online tool, where users can upload omnidirectional and binaural impulse responses, and instantly obtain and visualize several physical descriptors, as well as predicted RAQI scores for three different sound sources. So far, acceptable prediction accuracy is achieved for Reverberance, Strength, Irregular Decay, Clarity and Intimacy. Larger data sets of evaluated impulse responses are required to improve the model performance and enable reliable predictions of room acoustical quality. Therefore, the administration of RAQI evaluations within the website is currently being developed.}, language = {en} } @techreport{SalomMarszalCandanedoetal.2014, author = {Salom, Jaume and Marszal, Anna Joanna and Candanedo, Jose and Widen, Joakim and Byskov Lindberg, Karen and Sartori, Igor}, title = {Analysis of Load Match and Grid Interaction Indicators in Net Zero Energy Buildings with High-Resolution Data: A report of Subtask A IEA Task 40/Annex 52 Towards Net Zero Energy Solar Buildings}, publisher = {Catalonia Institute for Energy Research, IREC}, address = {Barcelona}, organization = {Catalonia Institute for Energy Research, IREC}, url = {http://nbn-resolving.de/https://www.researchgate.net/publication/271135453_Analysis_of_load_match_and_grid_interaction_indicators_in_net_zero_energy_buildings_with_high-resolution_data}, year = {2014}, language = {en} } @article{PfeiffelmannDiederichGueletal.2019, author = {Pfeiffelmann, Bj{\"o}rn and Diederich, Michael and G{\"u}l, Fethi and Benim, Ali Cemal and Hamberger, Andreas and Heese, Markus}, title = {Analysis of combustion, heat and fluid flow in a biomass furnace}, series = {E3S Web of Conferences}, volume = {128}, journal = {E3S Web of Conferences}, publisher = {edp sciences}, issn = {2267-1242}, doi = {10.1051/e3sconf/201912803003}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-27880}, year = {2019}, language = {en} } @inproceedings{IlleAdamGottschaldetal.2018, author = {Ille, Fabian and Adam, Mario and Gottschald, Jonas and Wirth, Hans Peter}, title = {Analysis of Ageing Phenomena for Big Solar Thermal Plants}, series = {ECOS - 31th International Conference on Efficiency, Cost, Optimization, Simulation and Enviromental Impact of Energy Systems, 17.-21.06.2018, Guimaraes / Portugal}, booktitle = {ECOS - 31th International Conference on Efficiency, Cost, Optimization, Simulation and Enviromental Impact of Energy Systems, 17.-21.06.2018, Guimaraes / Portugal}, address = {Guimaraes}, year = {2018}, language = {en} } @inproceedings{HateburHeiselSchmidt2008, author = {Hatebur, Denis and Heisel, Maritta and Schmidt, Holger}, title = {Analysis and Component-based Realization of Security Requirements}, series = {2008 Third International Conference on Availability, Reliability and Security}, booktitle = {2008 Third International Conference on Availability, Reliability and Security}, publisher = {IEEE}, address = {Barcelona}, isbn = {978-0-7695-3102-1}, doi = {10.1109/ARES.2008.27}, pages = {195 -- 203}, year = {2008}, abstract = {We present a process to develop secure software with an extensive pattern-based security requirements engineering phase. It supports identifying and analyzing conflicts between different security requirements. In the design phase, we proceed by selecting security software components that achieve security requirements. The process enables software developers to systematically identify, analyze, and finally realize security requirements using security software components. We illustrate our approach by a lawyer agency software example.}, language = {en} } @incollection{Hoerner2019, author = {H{\"o}rner, Fernand}, title = {Analysing the voice in popular music with categories of ‚voice'}, series = {Contemporary Popular Music Studies: Proceedings of the International Association for the Study of Popular Music 2017}, booktitle = {Contemporary Popular Music Studies: Proceedings of the International Association for the Study of Popular Music 2017}, editor = {Dumnić Vilotijević, Marija and Medić, Ivana}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {9783658252540}, pages = {235 -- 247}, year = {2019}, language = {en} } @inproceedings{JonkerAydoğanBaarslagetal.2017, author = {Jonker, Catholijn M. and Aydoğan, Reyhan and Baarslag, Tim and Broekens, Joost and Detweiler, Christian A. and Hindriks, Koen V. and Huldtgren, Alina and Pasman, Wouter}, title = {An Introduction to the Pocket Negotiator: A General Purpose Negotiation Support System}, series = {Multi-Agent Systems and Agreement Technologies: 14th European Conference, EUMAS 2016, and 4th International Conference, AT 2016, Valencia, Spain, December 15-16, 2016}, volume = {Lecture Notes in Computer Science (LNCS, volume 10207)}, booktitle = {Multi-Agent Systems and Agreement Technologies: 14th European Conference, EUMAS 2016, and 4th International Conference, AT 2016, Valencia, Spain, December 15-16, 2016}, editor = {Criado Pacheco, Natalia and Carrascosa, Carlos and Osman, Nardine and Juli{\´a}n Inglada, Vicente}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-59294-7}, doi = {10.1007/978-3-319-59294-7_2}, pages = {13 -- 27}, year = {2017}, language = {en} } @article{HoetzelvonBrachelSchmidtetal.2014, author = {H{\"o}tzel, K. and von Brachel, R. and Schmidt, U. and Rieger, E. and Kosfelder, Joachim and Hechler, T. and Schulte, D. and Vocks, Silja}, title = {An Internet-based program to enhance motivation to change in females with symptoms of an eating disorder: a randomized controlled trial}, series = {Psychological medicine}, volume = {44}, journal = {Psychological medicine}, number = {9}, publisher = {Cambridge University Press}, doi = {10.1017/s0033291713002481}, pages = {1947 -- 1963}, year = {2014}, language = {en} } @inproceedings{BeckersFassbenderSchmidt2012, author = {Beckers, Kristian and Faßbender, Stephan and Schmidt, Holger}, title = {An Integrated Method for Pattern-Based Elicitation of Legal Requirements Applied to a Cloud Computing Example}, series = {2012 Seventh International Conference on Availability, Reliability and Security}, booktitle = {2012 Seventh International Conference on Availability, Reliability and Security}, publisher = {IEEE}, address = {Prague}, isbn = {978-0-7695-4775-6}, doi = {10.1109/ARES.2012.25}, pages = {463 -- 472}, year = {2012}, abstract = {Considering legal aspects during software development is a challenging problem, due to the cross-disciplinary expertise required. The problem is even more complex for cloud computing systems, because of the international distribution, huge amounts of processed data, and a large number of stakeholders that own or process the data. Approaches exist to deal with parts of the problem, but they are isolated from each other. We present an integrated method for elicitation of legal requirements. A cloud computing online banking scenario illustrates the application of our methods. The running example deals with the problem of storing personal information in the cloud and based upon the BDSG (German Federal Data Protection Act). We describe the structure of the online banking cloud system using an existing pattern-based approach. The elicited information is further refined and processed into functional requirements for software development. Moreover, our method covers the analysis of security-relevant concepts such as assets and attackers particularly with regard to laws. The requirements artifacts then serve as inputs for existing patterns for the identification of laws relevant for the online banking cloud system. Finally, our method helps to systematically derive functional as well as security requirements that realize the previously identified laws.}, language = {en} } @inproceedings{NunnKummertMuelleretal.2009, author = {Nunn, Christian and Kummert, Anton and M{\"u}ller, Dennis and Meuter, Mirko and M{\"u}ller-Schneiders, Stefan}, title = {An improved adaboost learning scheme using LDA features for object recognition}, series = {Proceedings of the 12th International IEEE Conference on Intelligent Transportation Systems, St. Louis, MO, USA, October 3-7, 2009}, booktitle = {Proceedings of the 12th International IEEE Conference on Intelligent Transportation Systems, St. Louis, MO, USA, October 3-7, 2009}, publisher = {IEEE}, address = {Piscataway, N.J.}, isbn = {978-1-4244-5521-8}, doi = {10.1109/ITSC.2009.5309856}, pages = {1 -- 6}, year = {2009}, language = {en} } @inproceedings{MarinosGeiger2009, author = {Marinos, Dionysios and Geiger, Christian}, title = {An immersive multiuser music generation interface}, series = {Proceedings of the International Conference on Advances in Computer Enterntainment Technology - ACE '09, 29.10.2009 - 31.10.2009, Athens}, booktitle = {Proceedings of the International Conference on Advances in Computer Enterntainment Technology - ACE '09, 29.10.2009 - 31.10.2009, Athens}, publisher = {ACM Press}, address = {New York}, isbn = {9781605588643}, doi = {10.1145/1690388.1690486}, pages = {433}, year = {2009}, language = {en} } @article{RuessPahl2009, author = {Ruess, Martin and Pahl, P. J.}, title = {An extended QR-solver for large profiled matrices}, series = {International Journal for Numerical Methods in Engineering}, volume = {79}, journal = {International Journal for Numerical Methods in Engineering}, number = {11}, publisher = {Wiley}, issn = {1097-0207}, doi = {10.1002/nme.2618}, pages = {1419 -- 1442}, year = {2009}, language = {en} } @incollection{VoigtMonteroMenichinelli2016, author = {Voigt, Christian and Montero, Calkin Suero and Menichinelli, Massimo}, title = {An Empirically Informed Taxonomy for the Maker Movement}, series = {Internet Science}, volume = {Lecture Notes in Computer Science, 9934}, booktitle = {Internet Science}, editor = {Bagnoli, Franco and Satsiou, Anna and Stavrakakis, Ioannis and Nesi, Paolo and Pacini, Giovanna and Welp, Yanina and Tiropanis, Thanassis and DiFranzo, Dominic}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-319-45981-3}, doi = {10.1007/978-3-319-45982-0_17}, pages = {189 -- 204}, year = {2016}, language = {en} } @article{LiangRuessAbdalla2016, author = {Liang, Ke and Ruess, Martin and Abdalla, Mostafa}, title = {An eigenanalysis-based bifurcation indicator proposed in the framework of a reduced-order modeling technique for non-linear structural analysis}, series = {International Journal of Non-Linear Mechanics}, volume = {81}, journal = {International Journal of Non-Linear Mechanics}, publisher = {Elsevier}, issn = {0020-7462}, doi = {10.1016/j.ijnonlinmec.2016.01.013}, pages = {129 -- 138}, year = {2016}, language = {en} } @article{MagisanoLiangGarceaetal.2018, author = {Magisano, D. and Liang, Ke and Garcea, G. and Leonetti, L. and Ruess, Martin}, title = {An efficient mixed variational reduced-order model formulation for nonlinear analyses of elastic shells}, series = {International Journal for Numerical Methods in Engineering}, volume = {113}, journal = {International Journal for Numerical Methods in Engineering}, number = {4}, publisher = {Wiley}, issn = {1097-0207}, doi = {10.1002/nme.5629}, pages = {634 -- 655}, year = {2018}, language = {en} } @article{YangRuessKollmannsbergeretal.2012, author = {Yang, Z. and Ruess, Martin and Kollmannsberger, Stefan and D{\"u}ster, Alexander and Rank, Ernst}, title = {An efficient integration technique for the voxel-based finite cell method}, series = {International Journal for Numerical Methods in Engineering}, volume = {91}, journal = {International Journal for Numerical Methods in Engineering}, number = {5}, publisher = {Wiley}, issn = {1097-0207}, doi = {10.1002/nme.4269}, pages = {457 -- 471}, year = {2012}, language = {en} } @inproceedings{MayerPogschebaMarinosetal.2014, author = {Mayer, Christian and Pogscheba, Patrick and Marinos, Dionysios and W{\"o}ldecke, Bj{\"o}rn and Geiger, Christian}, title = {An audio-visual music installation with dichotomous user interactions}, series = {Proceedings of the 11th Conference on Advances in Computer Entertainment Technology, Funchal, 11.11.2014-14.11.2014}, booktitle = {Proceedings of the 11th Conference on Advances in Computer Entertainment Technology, Funchal, 11.11.2014-14.11.2014}, editor = {Chisik, Yoram and Geiger, Christian and Hasegawa, Shoichi}, publisher = {ACM}, address = {New York}, isbn = {9781450329453}, doi = {10.1145/2663806.2663842}, pages = {1 -- 6}, year = {2014}, language = {en} } @article{MandalBiswasMannaetal.2024, author = {Mandal, Dipak Kumar and Biswas, Nirmalendu and Manna, Nirmal K. and Gayen, Dilip Kumar and Benim, Ali Cemal}, title = {An application of artificial neural network (ANN) for comparative performance assessment of solar chimney (SC) plant for green energy production}, series = {Scientific Reports}, volume = {14}, journal = {Scientific Reports}, number = {1}, publisher = {Springer Nature}, issn = {2045-2322}, doi = {10.1038/s41598-023-46505-1}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-45190}, year = {2024}, abstract = {This study aims to optimize the power generation of a conventional Manzanares solar chimney (SC) plant through strategic modifications to the collector inlet height, chimney diameter, and chimney divergence. Employing a finite volume-based solver for numerical analysis, we systematically scrutinize influential geometric parameters, including collector height (hi = 1.85 to 0.1 m), chimney inlet diameter (dch = 10.16 to 55.88 m), and chimney outlet diameter (do = 10.16 to 30.48 m). Our findings demonstrate that reducing the collector inlet height consistently leads to increased power output. The optimal collector inlet height of hi = 0.2 m results in a significant power increase from 51 to 117.42 kW (~ 2.3 times) without additional installation costs, accompanied by an efficiency of 0.25\%. Conversely, enlarging the chimney diameter decreases the chimney base velocity and suction pressure. However, as turbine-driven power generation rises, the flow becomes stagnant beyond a chimney diameter of 45.72 m. At this point, power generation reaches 209 kW, nearly four times greater than the Manzanares plant, with an efficiency of 0.44\%. Nevertheless, the cost of expanding the chimney diameter is substantial. Furthermore, the impact of chimney divergence is evident, with power generation, collector efficiency, overall efficiency, and collector inlet velocity all peaking at an outer chimney diameter of 15.24 m (corresponding to an area ratio of 2.25). At this configuration, power generation increases to 75.91 kW, approximately 1.5 times more than the initial design. Remarkably, at a low collector inlet height of 0.2 m, combining it with a chimney diameter of 4.5 times the chimney inlet diameter (4.5dch) results in an impressive power output of 635.02 kW, signifying a substantial 12.45-fold increase. To model the performance under these diverse conditions, an artificial neural network (ANN) is effectively utilized.}, language = {en} } @article{WittpahlDeeganBlacketal.2021, author = {Wittpahl, Christian and Deegan, Brian and Black, Bob and Braun, Alexander}, title = {An analytic-numerical image flicker study to test novel flicker metrics}, series = {Electronic Imaging: Society for Imaging Science and Technology}, journal = {Electronic Imaging: Society for Imaging Science and Technology}, number = {17}, publisher = {Society for Imaging Science and Technology}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.17.AVM-183}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-35671}, pages = {1 -- 8}, year = {2021}, language = {en} } @article{UngerTischTophoven2018, author = {Unger, Stefanie and Tisch, Anita and Tophoven, Silke}, title = {Age and gender differences in the impact of labour-market transitions on subjective health in Germany}, series = {Scandinavian journal of public health}, volume = {46}, journal = {Scandinavian journal of public health}, number = {19}, publisher = {Sage}, doi = {10.1177/1403494817738430}, pages = {49 -- 64}, year = {2018}, language = {en} } @misc{Thiel2017, type = {Master Thesis}, author = {Thiel, Vanessa}, title = {African Artivism: Politically engaged art in Sub-Saharan Africa}, address = {D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-12035}, school = {Hochschule D{\"u}sseldorf}, pages = {76}, year = {2017}, language = {en} } @article{BenimDiederichPfeiffelmann2018, author = {Benim, Ali Cemal and Diederich, Michael and Pfeiffelmann, Bj{\"o}rn}, title = {Aerodynamic Optimization of Airfoil Profiles for Small Horizontal Axis Wind Turbines}, series = {Computation}, volume = {6}, journal = {Computation}, number = {2}, publisher = {MDPI}, issn = {2079-3197}, doi = {10.3390/computation6020034}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-25143}, year = {2018}, language = {en} } @inproceedings{WindteRadespielNeef2005, author = {Windte, Jan and Radespiel, Rolf and Neef, Matthias}, title = {Aerodynamic Analysis of Flapping Airfoil Propulsion at Low Reynolds Numbers}, series = {MEGAFLOW - Numerical Flow Simulation for Aircraft Design}, volume = {NNFM, 89}, booktitle = {MEGAFLOW - Numerical Flow Simulation for Aircraft Design}, editor = {Kroll, Norbert and Fassbender, Jens K.}, publisher = {Springer-Verlag}, address = {Berlin, Heidelberg}, isbn = {978-3-540-24383-0}, doi = {10.1007/3-540-32382-1_21}, pages = {299 -- 313}, year = {2005}, language = {en} } @phdthesis{Biedermann2019, author = {Biedermann, Till M.}, title = {Aeroacoustic transfer of leading edge serrations from single aerofoils to low-pressure fan applications}, publisher = {Technische Universit{\"a}t Berlin}, address = {Berlin}, organization = {Technische Univerit{\"a}t Berlin}, doi = {10.14279/depositonce-9075}, school = {Hochschule D{\"u}sseldorf}, pages = {221}, year = {2019}, abstract = {Leading edge serrations are well-known for their aeroacoustic potential in reducing aerofoil-turbulence interaction noise and are also associated with certain aerodynamic advantages. To prepare leading edge serrations for industrial application, two obstacles remain to be addressed. First is a combined analysis of the aeroacoustic and the aerodynamic performance of leading edge serrations to develop optimum designs. Second is the need to examine the transferability of the known effects of leading edge serrations from a single aerofoil to full rotors, which are considered to be the final area of application. This thesis aims to assist in the transfer of a well-investigated aerofoil with serrated leading edges from the rigid to the rotating domain. With this purpose, a single aerofoil type is selected and thoroughly analysed, experimentally and numerically, to generate a reliable data basis for aerodynamic performance and noise reduction capability. Aside from gathering information on the overall performance, the spatial distribution of the noise sources is localised, and the spectral composition of the noise reduction is found to follow a clearly defined scaling law. Aerodynamically, generated vortices are found to be responsible for a complex three-dimensional separation mechanism of the leading edge serrations, causing a delay of stall. The generated data basis is then used to design low-pressure axial fans of minimum complexity by keeping the initially chosen aerofoil type. The experimentally identified noise reduction mechanisms for the serrated axial fans are found to be more diverse than the single aerofoil and highly dependent on the inflow conditions and the operation point of the fan. A highly similar pattern for the spectral scaling of the noise reduction supports the finding that at optimum operation conditions, the previously identified noise reduction mechanisms for the single aerofoils are transferable to the rotating domain. On the other hand, additional aerodynamic mechanisms are found to dominate the noise reduction for the instability region of the fan, also contributing to reduced blade-to-blade interaction effects. Moreover, the blade-tip leakage flow is altered by delaying the development of coherent structures. The next step towards a more general description of the aeroacoustic and aerodynamic dependencies is developing a comprehensive model based on artificial neural networks. This model allows a combined analysis of the aerodynamic and acoustic performance of rotors with serrated leading edges and shows an accurate prediction of the overall performance and the spectral composition of the radiated noise. It also enables the development of multi-objective optima for serration designs and motivates further studies into the generalisability of the observed trends. Furthermore, the developed model represents a feasible tool to create tailored serration designs for maximum efficiency in both aeroacoustics and aerodynamics, contributing to the development of future low-noise fans and rotating machinery.}, language = {en} } @article{WinklerBeckerDoolanetal.2012, author = {Winkler, Michael and Becker, Klaus and Doolan, Con and Kameier, Frank and Paschereit, Christian Oliver}, title = {Aeroacoustic Effects of a Cylinder-Plate Configuration}, series = {AIAA Journal}, volume = {50}, journal = {AIAA Journal}, number = {7}, publisher = {ARC}, doi = {10.2514/1.j051578}, pages = {1614 -- 1620}, year = {2012}, language = {en} } @inproceedings{EchternachtHeubergerBreueretal.2013, author = {Echternacht, David and Heuberger, Daniel and Breuer, Christopher and Linnemann, Christian and Moser, Albert}, title = {Advantageous positions for HVDC terminals in Europe}, series = {2013 IEEE Energytech, 21.05.2013 - 23.05.2013, Cleveland}, booktitle = {2013 IEEE Energytech, 21.05.2013 - 23.05.2013, Cleveland}, publisher = {IEEE}, isbn = {978-1-4673-4444-9}, doi = {10.1109/EnergyTech.2013.6645291}, pages = {1 -- 5}, year = {2013}, language = {en} } @article{BeniddirKangGentaJouveetal.2021, author = {Beniddir, Mehdi A. and Kang, Kyo Bin and Genta-Jouve, Gr{\´e}gory and Huber, Florian and Rogers, Simon and van der Hooft, Justin J. J.}, title = {Advances in decomposing complex metabolite mixtures using substructure- and network-based computational metabolomics approaches}, series = {Natural Product Reports}, volume = {38}, journal = {Natural Product Reports}, number = {11}, publisher = {The Royal Society of Chemistry}, issn = {1460-4752}, doi = {10.1039/D1NP00023C}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34772}, pages = {1967 -- 1993}, year = {2021}, language = {en} } @phdthesis{Braun2007, author = {Braun, Alexander}, title = {Addressing Single Yb+ Ions: A new scheme for quantum computing in linear ion traps}, publisher = {Cuvillier Verlag}, address = {G{\"o}ttingen}, isbn = {978-3-86727-276-6}, pages = {169}, year = {2007}, language = {en} } @article{BeyerGroteReinig2008, author = {Beyer, Marc-Andr{\´e} and Grote, Wolfgang and Reinig, Gunter}, title = {Adaptive exact linearization control of batch polymerization reactors using a Sigma-Point Kalman Filter}, series = {Journal of Process Control}, volume = {18}, journal = {Journal of Process Control}, number = {7-8}, publisher = {Elsevier}, doi = {10.1016/j.jprocont.2007.12.002}, pages = {663 -- 675}, year = {2008}, abstract = {The Chylla-Haase polymerization reactor is widely accepted as a benchmark process for the evaluation of control strategies for batch reactors. In this contribution a control concept based on Exact I/O-Linearization is proposed and compared to a conventional cascade control structure. In order to adapt the exact linearization control strategy to various polymerization products and batch conditions, an advanced probabilistic inference algorithm (Sigma-Point Kalman Filter) is applied and investigated. Sigma-Point Kalman Filters have the major improvement of simplified implementation compared to local linearization methods (i.e. Extended Kalman Filter) because no analytical Jacobians are required. Stochastic simulation studies are introduced and show the effectiveness, accuracy and benefit of the control concept. Within several scenarios a satisfying robustness against structural errors in the underlying model equations for the nonlinear control law and the inference algorithm is demonstrated. Furthermore it is pointed out, that with little effort in reassembling the plant design, control performance can be improved significantly.}, language = {en} } @inproceedings{LuizardSteffensWeinzierl2019, author = {Luizard, Paul and Steffens, Jochen and Weinzierl, Stefan}, title = {Adaptation of singers to physical and virtual room acoustics}, series = {Proceedings of the International Symposium on Room Acoustics (ISRA) 2019, Amsterdam, Netherlands.}, booktitle = {Proceedings of the International Symposium on Room Acoustics (ISRA) 2019, Amsterdam, Netherlands.}, editor = {Lautenbach, Margriet and Witew, Ingo B. and de Vries, Diemer and Hornikx, Maarten}, publisher = {Nederlands Akoestisch Genootschap}, address = {Heerde}, isbn = {978-90-9032895-9}, doi = {10.18154/RWTH-CONV-240115}, year = {2019}, language = {en} } @article{PreciadoLopezHuberGrigorievetal.2014, author = {Preciado L{\´o}pez, Magdalena and Huber, Florian and Grigoriev, Ilya and Steinmetz, Michel O. and Akhmanova, Anna and Koenderink, Gijsje H. and Dogterom, Marileen}, title = {Actin-microtubule coordination at growing microtubule ends}, series = {Nature Communications}, volume = {5}, journal = {Nature Communications}, publisher = {Springer Nature}, issn = {2041-1723}, doi = {10.1038/ncomms5778}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34878}, pages = {4778}, year = {2014}, abstract = {To power dynamic processes in cells, the actin and microtubule cytoskeletons organize into complex structures. Although it is known that cytoskeletal coordination is vital for cell function, the mechanisms by which cross-linking proteins coordinate actin and microtubule activities remain poorly understood. In particular, it is unknown how the distinct mechanical properties of different actin architectures modulate the outcome of actin-microtubule interactions. To address this question, we engineered the protein TipAct, which links growing microtubule ends via end-binding proteins to actin filaments. We show that growing microtubules can be captured and guided by stiff actin bundles, leading to global actin-microtubule alignment. Conversely, growing microtubule ends can transport, stretch and bundle individual actin filaments, thereby globally defining actin filament organization. Our results provide a physical basis to understand actin-microtubule cross-talk, and reveal that a simple cross-linker can enable a mechanical feedback between actin and microtubule organization that is relevant to diverse biological contexts.}, language = {en} }