@article{RoedderNeefLauxetal.2016, author = {Roedder, Maximilian and Neef, Matthias and Laux, Christoph and Priebe, Klaus-P.}, title = {Systematic Fluid Selection for Organic Rankine Cycles and Performance Analysis for a Combined High and Low Temperature Cycle}, series = {Journal of Engineering for Gas Turbines and Power}, volume = {138}, journal = {Journal of Engineering for Gas Turbines and Power}, number = {031701}, publisher = {ASME}, doi = {10.1115/1.4031361}, pages = {168}, year = {2016}, abstract = {The organic Rankine cycle (ORC) is an established thermodynamic process that converts waste heat to electric energy. Due to the wide range of organic working fluids available the fluid selection adds an additional degree-of-freedom to the early design phase of an ORC process. Despite thermodynamic aspects such as the temperature level of the heat source, other technical, economic, and safety aspects have to be considered. For the fluid selection process in this paper, 22 criteria were identified in six main categories while distinguishing between elimination (EC) and tolerance criteria (TC). For an ORC design, the suggested method follows a practical engineering approach and can be used as a structured way to limit the number of interesting working fluids before starting a detailed performance analysis of the most promising candidates. For the first time, the selection process is applied to a two-stage reference cycle, which uses the waste heat of a large reciprocating engine for cogeneration power plants. It consists of a high temperature (HT) and a low temperature (LT) cycle in which the condensation heat of the HT cycle provides the heat input of the LT cycle. After the fluid selection process, the detailed thermodynamic cycle design is carried out with a thermodynamic design tool that also includes a database for organic working fluids. The investigated ORC cycle shows a net thermal efficiency of about 17.4\% in the HT cycle with toluene as the working fluid and 6.2\% in LT cycle with isobutane as the working fluid. The electric efficiency of the cogeneration plant increases from 40.4\% to 46.97\% with the both stages of the two-stage ORC in operation.}, language = {en} } @incollection{RoedderLauxNeef2015, author = {R{\"o}dder, Maximilian and Laux, Christoph and Neef, Matthias}, title = {Systematic fluid selection in early stages of ORC design: a practical engineering approach}, series = {Proceedings of the ASME Turbo Expo: Turbine Technical Conference and Exposition - 2015 : presented at the ASME 2015 Turbo Expo: Turbine Technical Conference and Exposition, June 15 - 19, 2015, Montreal, Quebec, Canada / sponsored by the International Gas Turbine Institute}, volume = {3: Coal, biomass and alternative fuels - cycle innovations - electric power - industrial and cogeneration}, booktitle = {Proceedings of the ASME Turbo Expo: Turbine Technical Conference and Exposition - 2015 : presented at the ASME 2015 Turbo Expo: Turbine Technical Conference and Exposition, June 15 - 19, 2015, Montreal, Quebec, Canada / sponsored by the International Gas Turbine Institute}, publisher = {International Gas Turbine Institute (ASME)}, address = {New York}, isbn = {978-0-7918-5667-3}, year = {2015}, language = {en} } @article{StrucksWatermannWeberetal.2021, author = {Strucks, Peter and Watermann, Clara and Weber, Konradin and Kaluza, Stefan}, title = {Systematic Investigations of Vibrational and Fluid-Mechanical Stability of Coated Monolithic Catalysts}, series = {Chemie Ingenieur Technik}, volume = {93}, journal = {Chemie Ingenieur Technik}, number = {5}, publisher = {Wiley}, issn = {1522-2640}, doi = {10.1002/cite.202000233}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-28930}, pages = {1 -- 6}, year = {2021}, abstract = {Heterogeneous catalysts usually consist of porous, inorganic materials. Especially in the mobile application, e.g., in exhaust gas catalysis as a part of the gas line of an engine, there are loads due to vibrations and high gas velocities. It can be assumed that physical stress will lead to a loss of the catalytically active coating. The present contribution describes experimental setups and methods for a systematic and reproducible investigation of the main influences to the mass loss due to vibrational and fluid-mechanical stress caused by particle-free gas flows.}, language = {en} } @misc{OPUS4-3198, title = {Systems, Software and Services Process Improvement}, series = {Communications in Computer and Information Science}, volume = {1251}, journal = {Communications in Computer and Information Science}, editor = {Yilmaz, Murat and Niemann, J{\"o}rg and Clarke, Paul and Messnarz, Richard}, publisher = {Springer Nature Switzerland}, address = {Cham}, isbn = {978-3-030-56440-7}, doi = {10.1007/978-3-030-56441-4}, year = {2020}, language = {en} } @article{Kampes2020, author = {Kampes, C{\´e}line Fabienne}, title = {Tail or no Tail? Applicability of the Long Tail Theory to the German Online Media Market}, series = {Central European Journal of Communication}, volume = {13}, journal = {Central European Journal of Communication}, number = {3}, publisher = {University Press of Wroclaw}, issn = {1899-5101}, doi = {10.51480/1899-5101.13.3(27).4}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40123}, pages = {371 -- 389}, year = {2020}, abstract = {The Long Tail theory serves as an explanation for market change triggered through evolving online market conditions. However, it is often referred to without empirical validation, or with inconsistent findings on its applicability. Therefore, this paper analyses the applicability of the Long Tail theory to German online media offerings as of 2014 and 2016, focusing on offerings that serve information purposes (information offerings). Based on a unique dataset of commercially oriented online media offerings (Longitudinal IntermediaPlus 2014-2016), an analysis for three Long Tail characteristics (variety increase, opposing concentration between hit and niche offerings and niche market share increase) is conducted. By additionally distinguishing between political and entertainment-oriented information offerings as boundaries of democratized online market conditions the analysis reveals that the Long Tail theory is not fully applicable to any market sample, and especially not to politically oriented offerings.}, language = {en} } @inproceedings{FeitschStrobelMeyeretal.2013, author = {Feitsch, Jochen and Strobel, Marco and Meyer, Stefan and Geiger, Christian}, title = {Tangible and body-related interaction techniques for a singing voice synthesis installation}, series = {Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction - TEI '14, 16.02.2014 - 19.02.2014, Munich}, booktitle = {Proceedings of the 8th International Conference on Tangible, Embedded and Embodied Interaction - TEI '14, 16.02.2014 - 19.02.2014, Munich}, editor = {Butz, Andreas and Greenberg, Saul and Bakker, Saskia and Loke, Lian and de Luca, Alexander}, publisher = {ACM Press}, address = {New York}, isbn = {9781450326353}, doi = {10.1145/2540930.2540962}, pages = {157 -- 164}, year = {2013}, language = {en} } @inproceedings{EchternachtNeuselLangeSchermulyetal.2017, author = {Echternacht, David and Neusel-Lange, N. and Schermuly, Rainer and Meyer, F.}, title = {Target Network Planning and Asset Condition Assessment as Basis for an integrated Asset Management Approach}, series = {ETG Congress 2017, Bonn, 28.11.-29.11.2017}, booktitle = {ETG Congress 2017, Bonn, 28.11.-29.11.2017}, address = {Bonn}, year = {2017}, language = {en} } @inproceedings{ZielkeNeefFussenecker2017, author = {Zielke, Thomas and Neef, Matthias and Fussenecker, Claudia}, title = {Teaching Engineering Conferences}, series = {Proceedings of the Canadian Engineering Education Association (CEEA) Conference}, booktitle = {Proceedings of the Canadian Engineering Education Association (CEEA) Conference}, address = {Winnipeg}, organization = {Canadian Engineering Education Association (CEEA)}, year = {2017}, abstract = {This article is on a university course called Engineering Conferences. It has been developed by the authors and installed as a mandatory part of the curriculum in three master's degree programs for engineering students. The participants of the course are postgraduates with different nationalities, mostly German, and different technical backgrounds. They study Mechanical Engineering, Simulation and Experimental Technology, or International Business Engineering. The basic idea of the course concept goes far beyond simply teaching the standards of academic writing and skills for using scientific publications. By using a learnercentered approach, the students get engaged in typical activities around an active attendance of a real conference. Students learn to locate the field of their bachelor thesis or project report in the world of research communities, scientific journals and engineering conferences. They learn about conferences matching their bachelor/project topic. They write a paper complying with common academic standards, submit it to a mock-up conference, and review submissions of their fellow students. Students also produce a poster and have to defend it in a poster session held publicly on the campus. Engineering Conferences is a course on scientific communication and presentation that also aims at the development of other skills and competences needed in the world of modern engineering.}, language = {en} } @inproceedings{ReckterGeigerSingeretal.2009, author = {Reckter, Holger and Geiger, Christian and Singer, Jurgen and Streuber, Stephan}, title = {Tech-note: Iterative design and test of a multimodal experience}, series = {2009 IEEE Symposium on 3D User Interfaces, 14.03.2009 - 15.03.2009, Lafayette}, booktitle = {2009 IEEE Symposium on 3D User Interfaces, 14.03.2009 - 15.03.2009, Lafayette}, publisher = {IEEE}, isbn = {978-1-4244-3965-2}, doi = {10.1109/3DUI.2009.4811213}, pages = {99 -- 102}, year = {2009}, language = {en} } @inproceedings{BreuerEchternachtLinnemannetal.2011, author = {Breuer, Christopher and Echternacht, David and Linnemann, Christian and Moser, Albert}, title = {Technical and economic comparison of national and joint cross-border curative congestion management application}, series = {2011 8th International Conference on the European Energy Market (EEM), 25.05.2011 - 27.05.2011, Zagreb, Croatia}, booktitle = {2011 8th International Conference on the European Energy Market (EEM), 25.05.2011 - 27.05.2011, Zagreb, Croatia}, publisher = {IEEE}, isbn = {978-1-61284-285-1}, doi = {10.1109/EEM.2011.5952974}, pages = {33 -- 38}, year = {2011}, language = {en} } @article{WiesmannHamelKaluza2018, author = {Wiesmann, Thomas and Hamel, Christian and Kaluza, Stefan}, title = {Techniques to Remove Traces of Oxygen by Catalytic Conversion from Gas Mixtures}, series = {Chemie Ingenieur Technik}, volume = {90}, journal = {Chemie Ingenieur Technik}, number = {10}, publisher = {Wiley}, issn = {1522-2640}, doi = {10.1002/cite.201800022}, pages = {1446 -- 1452}, year = {2018}, language = {en} } @inproceedings{Deckert2016, author = {Deckert, Carsten}, title = {Tensions in Corporate Creativity}, series = {Book of Papers}, booktitle = {Book of Papers}, organization = {M-Sphere - Association for Promotion of Multidisciplinarity in Science and Business}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-18065}, pages = {79 -- 86}, year = {2016}, abstract = {The standard definition of creativity is based on a tension between originality and effectiveness. Borrowing from the wave-particle duality in physics one could say that there is an originality-effectiveness duality at work for creativity. The paper explores how this tension pervades Amabile's (1997) componential theory of organizational creativity with the components organizational motivation, management practices (including work assignment and work control) and resources. As a method the so called value square (" Wertequadrat ") developed by Helwig (1967) and Schulz von Thun (1998) is used which balances a value with its countervalue. The author identifies a tension of corporate tradition and corporate change for organizational motivation, a tension of skills and challenges for work assignment, a tension of management by control and management by loss of control for work control as well as a tension of organizational efficiency and organizational slack for resources. Additionally different implications of these tensions for the resistance of a company to creativity, for an organizational climate conducive to creativity as well as for resource allocation in creative endeavours are discussed.}, language = {en} } @techreport{Deckert2016, author = {Deckert, Carsten}, title = {Tensions in Creative Products - Using the Value Square to Model Functional Creativity}, series = {CBS Working Paper Series}, volume = {4}, journal = {CBS Working Paper Series}, publisher = {Cologne Business School}, address = {K{\"o}ln}, organization = {Cologne Business School}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-18078}, year = {2016}, language = {en} } @article{Deckert2017, author = {Deckert, Carsten}, title = {Tensions in Creative Products: Using the Value Square to Model Functional Creativity}, series = {International Journal of Creativity \& Problem Solving}, volume = {26}, journal = {International Journal of Creativity \& Problem Solving}, pages = {71 -- 93}, year = {2017}, language = {en} } @techreport{Deckert2015, author = {Deckert, Carsten}, title = {Tensions in Creativity - Using the Value Square to Model Individual Creativity}, series = {CBD Working Paper Series}, volume = {2}, journal = {CBD Working Paper Series}, publisher = {Cologne Business School}, address = {K{\"o}ln}, organization = {Cologne Business School}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-18209}, year = {2015}, abstract = {The definition of individual creativity is based on a tension between novelty on the one side and usefulness respectively appropriateness on the other side. The paper explores how this tension pervades the stage and componential theories of creativity. To achieve this, the so called value square ("Wertequadrat") developed by Helwig (1967) and Schulz von Thun (1998)is used which balances a value with its countervalue to analyze creativity. The author identifies tensions of action and inaction, expertise and mindfulness, precision and ambiguity as well as immersion and detachment permeating the creative process and the components of creativity. As a conclusion a morphological box for creativity is presented which allows one to show which combination of characteristics of the tensions support different stages of creativity. Furthermore implications for development and time management are discussed.}, language = {en} } @techreport{Deckert2019, author = {Deckert, Carsten}, title = {Tensions in Team Creativity: Using the Value Square to Model Team Climate for Creativity}, editor = {Niemann, J{\"o}rg and Deckert, Carsten}, address = {D{\"u}sseldorf}, issn = {2627-8375}, doi = {10.20385/2627-8375_1}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-16763}, pages = {26}, year = {2019}, abstract = {This paper explores the tensions in team creativity. The tensions in team creativity are based on a tension between originality and effectiveness in the standard definition of creativity. To display the tensions in team creativity, the value square ("Wertequadrat") developed by Schulz von Thun (1998) is used which balances a value with its countervalue. The author identifies tensions for cohesion, consensus and conformity. Cohesion is described as a tension between team diversity and team safety, consensus as a tension between constructive controversy and participatory decision-making and conformity as a tension between support for innovation and task orientation. Finally, the connection of individual and team creativity is described as an interplay between solitary and interactive components.}, language = {en} } @incollection{HerderJaenschHorstetal.2004, author = {Herder, Jens and Jaensch, Kai and Horst, Bruno and Novotny, Thomas}, title = {Testm{\"a}rkte in einer Virtuellen Umgebung - Die Bestimmung von Preisabsatzfunktionen zur Unterst{\"u}tzung des Innovationsmanagements}, series = {Augmented and Virtual Reality in der Produktentstehung}, volume = {149}, booktitle = {Augmented and Virtual Reality in der Produktentstehung}, editor = {Gausemeier, J{\"u}rgen and Grafe, Michael}, publisher = {Heinz Nixdorf Institut, Universit{\"a}t Paderborn}, address = {Paderborn}, isbn = {3-935433-58-1}, pages = {97 -- 110}, year = {2004}, abstract = {Multimediale Technologien werden in der Marktforschung immer st{\"a}rker eingesetzt, um flexible und kosteng{\"u}nstige Studien durchzuf{\"u}hren. Im Innovationsprozess kann dabei auf die langj{\"a}hrigen Erfahrungen zur{\"u}ckgegriffen werden, die durch den Einsatz der Computersimulation in der technischen Produktentwicklung zustande gekommen sind. In sehr fr{\"u}hen Phasen des Innovationsprozesses k{\"o}nnen durch Einsatz der neuen Technologien die Markteinf{\"u}hrungskonzepte f{\"u}r neue Produkte getestet werden. Die Applikationen der virtuellen Realit{\"a}t bieten ein einzigartiges Potential, neue Produkte einschlie{\"i}‚lich des Marketingkonzeptes zu testen, ohne dass dieses Produkt bereits physisch vorhanden sein muss. Am Beispiel eines Elementes des Marketingkonzeptes, der Preispolitik, zeigt die vorliegende Studie auf, welches Potential die virtuelle Kaufsituation von Produkten bietet. Der Fokus des Projektes liegt auf der interaktiven Produktpr{\"a}sentation in einer virtuellen Umgebung, die in eine Online-Befragung mit zus{\"a}tzlichen Werbefilmen eingebettet ist. Visuell hochwertige 3D-Produktpr{\"a}sentationen versetzen den Probanden in eine virtuelle Einkaufsumgebung, die einem realen Szenario entspricht. Die virtuellen Produkte werden in mehreren Kaufentscheidungsrunden zu unterschiedlichen Preisen angeboten. Der Preisuntersuchung geht eine Pr{\"a}sentation ausgew{\"a}hlter Werbespots sowie eine produktbezogene Befragung voraus. Im Anschluss an die virtuellen Preisentscheidungen werden die Eindr{\"u}cke sowie einige Kontrollgr{\"o}en abgefragt. In weitergehenden Studien dieser Art k{\"o}nnen die Wirkungen mehrerer Marketing-Instrumente zu einem Zeitpunkt untersucht werden, in dem sich die Produkte noch im Entwicklungsprozess befinden. Auf diesem Weg lassen sich auch Wettbewerbsvorteile bestehender Produkte effizienter erkennen und nutzen. Mit den hoch entwickelten Computer- und Visualisierungstechnologien ist ein m{\"a}chtiges Werkzeug entstanden, das bereits f{\"u}r kommerzielle Pr{\"a}sentationen und Produktstudien eingesetzt wird. Zuk{\"u}nftig kann es auch in Kombination mit Internetanwendungen und klassischen Methoden der Marktforschung zu einem sehr fr{\"u}hen Zeitpunkt umfassende Erkenntnisse {\"u}ber ein Produkt liefern.}, language = {en} } @incollection{Virchow2008, author = {Virchow, Fabian}, title = {The aims and objections of the austrian far right in foreign and military policies}, series = {Europe for the Europeans}, booktitle = {Europe for the Europeans}, editor = {Liang, Christina Schori}, publisher = {Ashgate}, address = {Aldershot}, isbn = {978-0-7546-8625-5}, doi = {10.4324/9781315580821-8}, pages = {55 -- 80}, year = {2008}, language = {en} } @incollection{AngladaTortSteffensMuellensiefen2019, author = {Anglada-Tort, Manuel and Steffens, Jochen and M{\"u}llensiefen, Daniel}, title = {The Behavioral Economics of Music}, series = {Proceedings of the Prague Conference on Behavioral Sciences (PCBS), Prague, Czech Republic}, booktitle = {Proceedings of the Prague Conference on Behavioral Sciences (PCBS), Prague, Czech Republic}, address = {Prague}, organization = {CEVRO Institute}, year = {2019}, language = {en} } @article{AngladaTortMastersSteffensetal.2022, author = {Anglada-Tort, Manuel and Masters, Nikhil and Steffens, Jochen and North, Adrian and M{\"u}llensiefen, Daniel}, title = {The Behavioural Economics of Music: Systematic review and future directions}, series = {Quarterly Journal of Experimental Psychology}, volume = {76}, journal = {Quarterly Journal of Experimental Psychology}, number = {5}, publisher = {SAGE}, isbn = {1747-0218}, issn = {1747-0226}, doi = {10.1177/17470218221113761}, year = {2022}, abstract = {Music-related decision-making encompasses a wide range of behaviours including those associated with listening choices, composition and performance, and decisions involving music education and therapy. Although research programmes in psychology and economics have contributed to an improved understanding of music-related behaviour, historically, these disciplines have been unconnected. Recently, however, researchers have begun to bridge this gap by employing tools from behavioural economics. This article contributes to the literature by providing a discussion about the benefits of using behavioural economics in music-decision research. We achieve this in two ways. First, through a systematic review, we identify the current state of the literature within four key areas of behavioural economics-heuristics and biases, social decision-making, behavioural time preferences, and dual-process theory. Second, taking findings of the literature as a starting point, we demonstrate how behavioural economics can inform future research. Based on this, we propose the Behavioural Economics of Music (BEM), an integrated research programme that aims to break new ground by stimulating interdisciplinary research in the intersection between music, psychology, and economics.}, language = {en} }