@inproceedings{BarnatBosse2016, author = {Barnat, Miriam and Bosse, Elke}, title = {The challenge of creating meta-inferences: Combining data representing institutional and individual perspectives on first-year support in higher education}, series = {9th Conference on Social Science Methodology of the International Sociological Association, Leicester, UK}, booktitle = {9th Conference on Social Science Methodology of the International Sociological Association, Leicester, UK}, pages = {1 -- 20}, year = {2016}, language = {en} } @inproceedings{KleineKallweitMichauxetal.2016, author = {Kleine, Harald and Kallweit, Stephan and Michaux, Frank and Havermann, Marc and Olivier, Herbert}, title = {PIV Measurement of Shock Wave Diffraction}, series = {18th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2016, Lissabon}, booktitle = {18th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2016, Lissabon}, pages = {1 -- 14}, year = {2016}, language = {en} } @inproceedings{SchleupenEngemannBagherietal.2016, author = {Schleupen, Josef and Engemann, Heiko and Bagheri, Mohsen and Kallweit, Stephan}, title = {The potential of SMART climbing robot combined with a weatherproof cabin for rotor blade maintenance}, series = {17th European Conference on Composite Materials - ECCM, Munich, Germany}, booktitle = {17th European Conference on Composite Materials - ECCM, Munich, Germany}, pages = {1 -- 8}, year = {2016}, language = {en} } @article{BarnatFariaBosse2017, author = {Barnat, Miriam and Faria, Joana Abelha and Bosse, Elke}, title = {Heterogenit{\"a}t und Studierf{\"a}higkeit: Erste Ergebnisse einer L{\"a}ngsschnittbefragung}, series = {Qualit{\"a}t in der Wissenschaft: QiW ; Zeitschrift f{\"u}r Qualit{\"a}tsentwicklung in Forschung, Studium und Administration}, volume = {11}, journal = {Qualit{\"a}t in der Wissenschaft: QiW ; Zeitschrift f{\"u}r Qualit{\"a}tsentwicklung in Forschung, Studium und Administration}, number = {1}, publisher = {UVW Universit{\"a}ts-Verlag Webler}, address = {Bielefeld}, issn = {1860-3041}, pages = {17 -- 24}, year = {2017}, language = {de} } @inproceedings{BarnatKnutzen2017, author = {Barnat, Miriam and Knutzen, S.}, title = {Erfolgsstrategien f{\"u}r organisationales Lernen}, series = {Hochschulwege 2015 : Wie ver{\"a}ndern Projekte die Hochschulen? ; Dokumentation der Tagung in Weimar im M{\"a}rz 2015}, booktitle = {Hochschulwege 2015 : Wie ver{\"a}ndern Projekte die Hochschulen? ; Dokumentation der Tagung in Weimar im M{\"a}rz 2015}, editor = {Mai, Andreas}, publisher = {tredition}, address = {Hamburg}, isbn = {978-3-7439-1763-7}, pages = {91 -- 108}, year = {2017}, language = {de} } @article{FunkeKeinzKustereretal.2017, author = {Funke, Harald and Keinz, Jan and Kusterer, K. and Haj Ayed, A. and Kazari, M. and Kitajima, J. and Horikawa, A. and Okada, K.}, title = {Development and Testing of a Low NOX Micromix Combustion Chamber for an Industrial Gas Turbine}, series = {International Journal of Gas Turbine, Propulsion and Power Systems}, volume = {9}, journal = {International Journal of Gas Turbine, Propulsion and Power Systems}, number = {1}, issn = {1882-5079}, doi = {10.38036/jgpp.9.1_27}, pages = {27 -- 36}, year = {2017}, abstract = {The Micromix combustion principle, based on cross-flow mixing of air and hydrogen, promises low emission applications in future gas turbines. The Micromix combustion takes place in several hundreds of miniaturized diffusion-type micro-flames. The major advantage is the inherent safety against flash-back and low NOx-emissions due to a very short residence time of reactants in the flame region. The paper gives insight into the Micromix design and scaling procedure for different energy densities and the interaction of scaling laws and key design drivers in gas turbine integration. Numerical studies, experimental testing, gas turbine integration and interface considerations are evaluated. The aerodynamic stabilization of the miniaturized flamelets and the resulting flow field, flame structure and NOx formation are analysed experimentally and numerically. The results show and confirm the successful adaption of the low NOx Micromix characteristics for a range of different nozzle sizes, energy densities and thermal power output.}, language = {de} } @inproceedings{FunkeKeinzHendrick2017, author = {Funke, Harald and Keinz, Jan and Hendrick, P.}, title = {Experimental Evaluation of the Pollutant and Noise Emissions of the GTCP 36-300 Gas Turbine Operated with Kerosene and a Low NOX Micromix Hydrogen Combustor}, series = {7th European Conference for Aeronautics and Space Sciences, EUCASS 2017}, booktitle = {7th European Conference for Aeronautics and Space Sciences, EUCASS 2017}, organization = {7th European Conference for Aeronautics and Space Sciences, EUCASS 2017-125, Milan, Italy, July 2017}, doi = {10.13009/EUCASS2017-125}, pages = {10 Seiten}, year = {2017}, language = {en} } @incollection{BarnatJaensch2019, author = {Barnat, Miriam and J{\"a}nsch, Vanessa K.}, title = {Forschendes Lernen und Studienerfolg: Die Bedeutung epistemischer Neugier}, series = {Forschendes Lernen in der Studieneingangsphase: Empirische Befunde, Fallbeispiele und individuelle Perspektiven}, booktitle = {Forschendes Lernen in der Studieneingangsphase: Empirische Befunde, Fallbeispiele und individuelle Perspektiven}, publisher = {Springer VS}, address = {Wiesbaden}, isbn = {978-3-658-25312-7}, doi = {10.1007/978-3-658-25312-7_6}, pages = {99 -- 109}, year = {2019}, abstract = {Forschendes Lernen ist dazu geeignet, epistemische Neugier - definiert als Freude an neuen Erkenntnissen - anzuregen und zu befriedigen. Neben der Selbstwirksamkeit zeigt sich die Neugier als relevant f{\"u}r den Studienerfolg. Allerdings ist bisher nicht gekl{\"a}rt, in welcher Beziehung diese beiden Konstrukte zueinanderstehen.}, language = {de} } @incollection{RoethDeutskensKreiskoetheretal.2018, author = {R{\"o}th, Thilo and Deutskens, Christoph and Kreisk{\"o}ther, Kai and Heimes, Heiner Hans and Schittny, Bastian and Ivanescu, Sebastian and Kleine B{\"u}ning, Max and Reinders, Christian and Wessels, Saskia and Haunreiter, Andreas and Reisgen, Uwe and Thiele, Regina and Hameyer, Kay and Doncker, Rik W. de and Sauer, Uwe and Hoek, Hauke van and H{\"u}bner, Mareike and Hennen, Martin and Stolze, Thilo and Vetter, Andreas and Hagedorn, J{\"u}rgen and M{\"u}ller, Dirk and Rewitz, Kai and Wesseling, Mark and Flieger, Bj{\"o}rn}, title = {Entwicklung von elektrofahrzeugspezifischen Systemen}, series = {Elektromobilit{\"a}t}, booktitle = {Elektromobilit{\"a}t}, publisher = {Springer Vieweg}, address = {Berlin, Heidelberg}, isbn = {978-3-662-53137-2}, doi = {10.1007/978-3-662-53137-2_6}, pages = {279 -- 386}, year = {2018}, abstract = {Die Batterie ist eine der absolut zentralen Komponenten des Elektrofahrzeugs. Die serielle Entwicklung und Produktion dieser Batterien und die Verbesserung der Leistungen wird entscheidend f{\"u}r den Erfolg der Elektromobilit{\"a}t sein. Die Batterie ist jedoch nicht das einzige elektrofahrzeugspezifische System, das neu entwickelt, umkonzipiert oder verbessert werden muss. So sind ebenso die Entwicklung der neuen Fahrzeugstruktur sowie des elektrifizierten Antriebsstranges Teil dieses Kapitels. Weiterhin wird ein Blick auf das bedeutende Thema des Thermomanagements geworfen.}, language = {de} } @inproceedings{KreyerMuellerEsch2020, author = {Kreyer, J{\"o}rg and M{\"u}ller, Marvin and Esch, Thomas}, title = {A Map-Based Model for the Determination of Fuel Consumption for Internal Combustion Engines as a Function of Flight Altitude}, publisher = {DGLR}, address = {Bonn}, doi = {10.25967/490162}, pages = {13 Seiten}, year = {2020}, abstract = {In addition to very high safety and reliability requirements, the design of internal combustion engines (ICE) in aviation focuses on economic efficiency. The objective must be to design the aircraft powertrain optimized for a specific flight mission with respect to fuel consumption and specific engine power. Against this background, expert tools provide valuable decision-making assistance for the customer. In this paper, a mathematical calculation model for the fuel consumption of aircraft ICE is presented. This model enables the derivation of fuel consumption maps for different engine configurations. Depending on the flight conditions and based on these maps, the current and the integrated fuel consumption for freely definable flight emissions is calculated. For that purpose, an interpolation method is used, that has been optimized for accuracy and calculation time. The mission boundary conditions flight altitude and power requirement of the ICE form the basis for this calculation. The mathematical fuel consumption model is embedded in a parent program. This parent program presents the simulated fuel consumption by means of an example flight mission for a representative airplane. The focus of the work is therefore on reproducing exact consumption data for flight operations. By use of the empirical approaches according to Gagg-Farrar [1] the power and fuel consumption as a function of the flight altitude are determined. To substantiate this approaches, a 1-D ICE model based on the multi-physical simulation tool GT-SuiteĀ® has been created. This 1-D engine model offers the possibility to analyze the filling and gas change processes, the internal combustion as well as heat and friction losses for an ICE under altitude environmental conditions. Performance measurements on a dynamometer at sea level for a naturally aspirated ICE with a displacement of 1211 ccm used in an aviation aircraft has been done to validate the 1-D ICE model. To check the plausibility of the empirical approaches with respect to the fuel consumption and performance adjustment for the flight altitude an analysis of the ICE efficiency chain of the 1-D engine model is done. In addition, a comparison of literature and manufacturer data with the simulation results is presented.}, language = {en} }