TY - CHAP A1 - Frauenrath, Tobias A1 - Gömmel, Andreas A1 - Butenweg, Christoph A1 - Otten, Mario A1 - Niendorf, Thoralf T1 - 3D mapping of vocal fold geometry during articulatory maneuvers using ultrashort echo time imaging at 3.0 T T2 - ISMRM-ESMRMB joint annual meeting 2010, Band 4 Y1 - 2010 SN - 978-1-617-82008-3 N1 - ISMRM-ESMRMB joint annual meeting 2010 : Stockholm, Sweden, 1 - 7 May 2010 SP - 3087 PB - Curran CY - Red Hook, NY ER - TY - CHAP A1 - Handschuh, Nils A1 - Stollenwerk, Dominik A1 - Borchert, Jörg T1 - Operation of thermal storage power plants under high renewable grid penetration T2 - NEIS 2021: Conference on Sustainable Energy Supply and Energy Storage Systems N2 - The planned coal phase-out in Germany by 2038 will lead to the dismantling of power plants with a total capacity of approx. 30 GW. A possible further use of these assets is the conversion of the power plants to thermal storage power plants; the use of these power plants on the day-ahead market is considerably limited by their technical parameters. In this paper, the influence of the technical boundary conditions on the operating times of these storage facilities is presented. For this purpose, the storage power plants were described as an MILP problem and two price curves, one from 2015 with a relatively low renewable penetration (33 %) and one from 2020 with a high renewable energy penetration (51 %) are compared. The operating times were examined as a function of the technical parameters and the critical influencing factors were investigated. The thermal storage power plant operation duration and the energy shifted with the price curve of 2020 increases by more than 25 % compared to 2015. KW - storage optimisation KW - storage dispatch KW - thermal storage Y1 - 2021 SN - 978-3-8007-5651-3 N1 - NEIS 2021: Conference on Sustainable Energy Supply and Energy Storage Systems. 13-14 September 2021. Hamburg, Germany SP - 261 EP - 265 PB - VDE Verlag CY - Berlin ER - TY - CHAP A1 - Rupp, Matthias A1 - Kuperjans, Isabel A1 - Schulze, Sven ED - Berns, Karsten T1 - Energetische und ökologische Bewertung hybrider Antriebe im städtischen Busverkehr T2 - Commercial vehicle technology 2016 : proceedings of the 4th Commercial Vehicle Technology Symposium (CVT 2016), March 8-10, 2016, University of Kaiserslautern, Kaiserslautern, Germany N2 - In Anbetracht weltweit zunehmend strengerer klimapolitischer Ziele steigt auch der Druck für Nutzfahrzeughersteller, effizientere und umweltfreundlichere Technologien zu entwickeln. Den Blick bei der Bewertung dieser ausschließlich auf die Fahrzeugnutzung zu richten, ist längst nicht mehr zufriedenstellend. Im Rahmen dieser Analyse wird ein gegenwärtig auf dem Markt erwerblicher und in deutschen Städten bereits seit Jahren betriebener Hybridbus energetisch und ökologisch mit einem konventionell angetriebenen, nahezu baugleichen Modell entlang des Lebensweges bewertet. Nach Definition von Ziel und Untersuchungsrahmen wird ein Überblick auf bereits durchgeführte Lebenszyklusanalysen zu Hybridbussen im Stadtverkehr gegeben und Schlussfolgerungen für die anschließende Analyse abgeleitet. Diese wird im Rahmen einer energetischen und ökologischen Bewertung beider Produktsysteme anhand der Parameter "Primärenergieeinsatz" und "CO2äq Emissionen" praktiziert. Der Fahrzeugrumpf beider Fahrzeuge des gleichen Modells wird dabei als einheitlich angenommen, sodass bei dem Vergleich der Herstellung vereinfacht nur die sich unterscheidenden Komponenten des Antriebstranges berücksichtigt werden. Die Resultate der Wirkungsabschätzung werden als Differenz des Hybridbusses gegenüber dem Referenzfahrzeug über die einzelnen Lebenszyklusphasen dargestellt. Schließlich werden Prognosen getroffen, ab welcher Strecke die bei der Herstellung erzeugten höheren CO2äq Emissionen des Hybridantriebstranges gegenüber dem Referenzmodell ausgeglichen werden. Y1 - 2016 SP - 227 EP - 237 PB - Shaker CY - Aachen ER - TY - CHAP A1 - Kern, Alexander A1 - Imani Vashiani, Anahita A1 - Timmermanns, Tobias T1 - Threat for human beings due to touch voltages and body currents caused by direct lightning strikes in case of non-isolated lightning protection systems using natural components T2 - 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA) N2 - For typical cases of non-isolated lightning protection systems (LPS) the impulse currents are investigated which may flow through a human body directly touching a structural part of the LPS. Based on a basic LPS model with conventional down-conductors especially the cases of external and internal steel columns and metal façades are considered and compared. Numerical simulations of the line quantities voltages and currents in the time domain are performed with an equivalent circuit of the entire LPS. As a result it can be stated that by increasing the number of conventional down-conductors and external steel columns the threat for a human being can indeed be reduced, but not down to an acceptable limit. In case of internal steel columns used as natural down-conductors the threat can be reduced sufficiently, depending on the low-resistive connection of the steel columns to the lightning equipotential bonding or the earth termination system, resp. If a metal façade is used the threat for human beings touching is usually very low, if the façade is sufficiently interconnected and multiply connected to the lightning equipotential bonding or the earth termination system, resp. KW - Lightning protection system KW - down-conductor KW - steel columns KW - metal façade KW - touch voltage Y1 - 2021 SN - 978-1-6654-2346-5 U6 - https://doi.org/10.1109/ICLPandSIPDA54065.2021.9627465 N1 - 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA), 20-26 Sept. 2021, Colombo, Sri Lanka PB - IEEE CY - New York, NY ER - TY - CHAP A1 - Pieper, Martin T1 - Digitale Hochschullehre in mathematischen und mathematikdidaktischen Veranstaltungen T2 - Beiträge zum Mathematikunterricht 2018 : Vorträge zur Mathematikdidaktik und zur Schnittstelle Mathematik/Mathematikdidaktik auf der gemeinsamen Jahrestagung GDM und DMV 2018 (52. Jahrestagung der Gesellschaft für Didaktik der Mathematik). Bd. 1 Y1 - 2018 SN - 978-3-95987-089-4 SP - 105 EP - 106 PB - WTM-Verlag CY - Münster ER - TY - CHAP A1 - Pieper, Martin T1 - Lernzielorientierte Kurse und Stack Aufgaben in der Mathematikausbildung T2 - Beiträge zum Mathematikunterricht 2018 : Vorträge zur Mathematikdidaktik und zur Schnittstelle Mathematik/Mathematikdidaktik auf der gemeinsamen Jahrestagung GDM und DMV 2018 (52. Jahrestagung der Gesellschaft für Didaktik der Mathematik). Bd. 3 Y1 - 2018 SN - 978-3-95987-089-4 SP - 1399 EP - 1402 PB - WTM-Verlag CY - Münster ER - TY - CHAP A1 - Kern, Alexander T1 - Optimierung des Blitzschutzes bei Biogasanlagen T1 - Improvement of lightning protection for biogas plants T2 - 12. VDE/ABB-Blitzschutztagung : Beiträge der 12. VDE/ABB-Fachtagung, 12.-13. Oktober 2017, Aschaffenburg Y1 - 2017 SN - 978-3-8007-4459-6 SP - 48 EP - 56 ER - TY - CHAP A1 - Kern, Alexander A1 - Brocke, Ralph T1 - Planung von Fangeinrichtungen mit dem dynamischen elektro-geometrischen Modell - Mögliche praktische Anwendungen T1 - Design of air-terminations using the dynamic electro-geometrical model - Possible practical applications T2 - 12. VDE/ABB-Blitzschutztagung : Beiträge der 12. VDE/ABB-Fachtagung, 12.-13. Oktober 2017, Aschaffenburg Y1 - 2017 SN - 978-3-8007-4459-6 SP - 75 EP - 82 ER - TY - CHAP A1 - Birkl, Josef A1 - Diendorfer, Gerhard A1 - Kern, Alexander A1 - Thern, Stephan T1 - Extrem hohe Blitzströme T1 - Extremly high lightning currents T2 - 12. VDE/ABB-Blitzschutztagung : Beiträge der 12. VDE/ABB-Fachtagung, 12.-13. Oktober 2017, Aschaffenburg Y1 - 2017 SN - 978-3-8007-4459-6 SP - 146 EP - 152 ER - TY - CHAP A1 - Nierle, Elisabeth A1 - Pieper, Martin T1 - Measuring social impacts in engineering education to improve sustainability skills T2 - European Society for Engineering Education (SEFI) N2 - In times of social climate protection movements, such as Fridays for Future, the priorities of society, industry and higher education are currently changing. The consideration of sustainability challenges is increasing. In the context of sustainable development, social skills are crucial to achieving the United Nations Sustainable Development Goals (SDGs). In particular, the impact that educational activities have on people, communities and society is therefore coming to the fore. Research has shown that people with high levels of social competence are better able to manage stressful situations, maintain positive relationships and communicate effectively. They are also associated with better academic performance and career success. However, especially in engineering programs, the social pillar is underrepresented compared to the environmental and economic pillars. In response to these changes, higher education institutions should be more aware of their social impact - from individual forms of teaching to entire modules and degree programs. To specifically determine the potential for improvement and derive resulting change for further development, we present an initial framework for social impact measurement by transferring already established approaches from the business sector to the education sector. To demonstrate the applicability, we measure the key competencies taught in undergraduate engineering programs in Germany. The aim is to prepare the students for success in the modern world of work and their future contribution to sustainable development. Additionally, the university can include the results in its sustainability report. Our method can be applied to different teaching methods and enables their comparison. KW - Social impact measurement KW - Key competences KW - Sustainable engineering education KW - Future skills Y1 - 2023 U6 - https://doi.org/10.21427/QPR4-0T22 N1 - 51st Annual Conference of the European Society for Engineering Education, Technological University Dublin, 10th-14th September, 2023 N1 - Corresponding Author: Elisabeth Nierle ER -