@article{PrumeTiedkeSchmitzetal.2001, author = {Prume, Klaus and Tiedke, S. and Schmitz, T. and Roelofs, A.}, title = {Direct hysteresis measurements of single nanosized ferroelectric capacitors contacted with an atomic force microscope / Tiedke, S. ; Schmitz, T. ; Prume, K. ; Roelofs, A. ; Schneller, T. ; Kall, U. ; Waser, R. ; Ganpule, C. S. ; Nagarajan, V. ; Stanishevs}, series = {Applied Physics Letters. 79 (2001), H. 22}, journal = {Applied Physics Letters. 79 (2001), H. 22}, isbn = {0003-6951}, pages = {3678 -- 3680}, year = {2001}, language = {en} } @article{PrumeTyholdtCalameetal.2007, author = {Prume, Klaus and Tyholdt, F. and Calame, F. and Raeder, H.}, title = {Chemically derived seeding layer for {100}-textured PZT thin films / Tyholdt, F. ; Calame, F. ; Prume, K. ; Raeder, H. ; Muralt, P.}, series = {Journal of Electroceramics. 19 (2007), H. 4}, journal = {Journal of Electroceramics. 19 (2007), H. 4}, isbn = {1385-3449}, pages = {311 -- 314}, year = {2007}, language = {en} } @article{PrumeWaser2000, author = {Prume, Klaus and Waser, Rainer}, title = {Finite-element simulation of coupled characteristics of ceramic multilayer capacitors under transient electrical loading / Prume, Klaus ; Waser, Rainer}, series = {Proceedings of the 2000 12th IEEE International Symposium on Applications of Ferroelectrics. Vol. 2}, journal = {Proceedings of the 2000 12th IEEE International Symposium on Applications of Ferroelectrics. Vol. 2}, pages = {675 -- 678}, year = {2000}, language = {en} } @article{PrumeWaserFrankenetal.2000, author = {Prume, Klaus and Waser, Rainer and Franken, Klaus and Maier, Horst R.}, title = {Finite-Element Analysis of Ceramic Multilayer Capacitors: Modeling and Electrical Impedance Spectroscopy for a Nondestructive Failure Test / Prume, Klaus ; Waser, Rainer ; Franken, Klaus ; Maier, Horst R. ;}, series = {Journal of the American Ceramic Society. 83 (2000), H. 5}, journal = {Journal of the American Ceramic Society. 83 (2000), H. 5}, isbn = {0002-7820}, pages = {1153 -- 1159}, year = {2000}, language = {en} } @article{PrumeZalachasLaskewitzetal.2008, author = {Prume, Klaus and Zalachas, Nicolas and Laskewitz, Bernd and Kamlah, Marc}, title = {Effective Piezoelectric Coefficients of Ferroelectric Thin Films on Elastic Substrates / Zalachas, Nicolas ; Laskewitz, Bernd ; Kamlah, Marc ; Prume, Klaus ; Lapusta, Yuri ; Tiedke, Stephan}, series = {Journal of Intelligent Material Systems and Structures. 20 (2008), H. 6}, journal = {Journal of Intelligent Material Systems and Structures. 20 (2008), H. 6}, isbn = {1045-389X}, pages = {683 -- 695}, year = {2008}, language = {en} } @incollection{PuliniGligorevic2009, author = {Pulini, Paola and Gligorevic, Snjezana}, title = {WIMAX performance in the airport environment}, series = {Multi-carrier systems \& solutions 2009. (Lecture notes in electrical engineering ; 41)}, booktitle = {Multi-carrier systems \& solutions 2009. (Lecture notes in electrical engineering ; 41)}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {978-90-481-2529-6 (Print) ; 978-90-481-2530-2 (Online)}, pages = {301 -- 310}, year = {2009}, abstract = {In this paper, the multicarrier physical layers of WiMAX are evaluated in the context of airport data links. The orthogonal frequency-division multiplexing (OFDM) and orthogonal frequency-division multiple-access (OFDMA) cases are applied to the forward link (FL) and reverse link (RL), respectively. The performance of the so called parking and taxi scenarios is presented for airport communications in C-band. Numerical results show that the proposed scheme brings good performance for both the FL and the RL. For the OFDMA case a structure changing called double-tile is also proposed to improve the system performance.}, language = {en} } @article{PuppeGiulianoFrantzetal.2018, author = {Puppe, Michael and Giuliano, Stefano and Frantz, Cathy and Uhlig, Ralf and Schumacher, Ralph and Ibraheem, Wagdi and Schmalz, Stefan and Waldmann, Barbara and Guder, Christoph and Peter, Dennis and Schwager, Christian and Teixeira Boura, Cristiano Jos{\´e} and Alexopoulos, Spiros and Spiegel, Michael and Wortmann, J{\"u}rgen and Hinrichs, Matthias and Engelhard, Manfred and Aust, Michael}, title = {Techno-economic optimization of molten salt solar tower plants}, series = {AIP Conference Proceedings art.no. 040033}, volume = {2033}, journal = {AIP Conference Proceedings art.no. 040033}, number = {Issue 1}, publisher = {AIP Publishing}, address = {Melville, NY}, doi = {10.1063/1.5067069}, year = {2018}, abstract = {In this paper the results of a techno-economic analysis of improved and optimized molten salt solar tower plants (MSSTP plants) are presented. The potential improvements that were analyzed include different receiver designs, different designs of the HTF-system and plant control, increased molten salt temperatures (up to 640°C) and multi-tower systems. Detailed technological and economic models of the solar field, solar receiver and high temperature fluid system (HTF-system) were developed and used to find potential improvements compared to a reference plant based on Solar Two technology and up-to-date cost estimations. The annual yield model calculates the annual outputs and the LCOE of all variants. An improved external tubular receiver and improved HTF-system achieves a significant decrease of LCOE compared to the reference. This is caused by lower receiver cost as well as improvements of the HTF-system and plant operation strategy, significantly reducing the plant own consumption. A novel star receiver shows potential for further cost decrease. The cavity receiver concepts result in higher LCOE due to their high investment cost, despite achieving higher efficiencies. Increased molten salt temperatures seem possible with an adapted, closed loop HTF-system and achieve comparable results to the original improved system (with 565°C) under the given boundary conditions. In this analysis all multi tower systems show lower economic viability compared to single tower systems, caused by high additional cost for piping connections and higher cost of the receivers. REFERENCES}, language = {en} } @article{PoettgenEdererAltherretal.2015, author = {P{\"o}ttgen, Philipp and Ederer, Thorsten and Altherr, Lena and Lorenz, Ulf and Pelz, Peter F.}, title = {Examination and optimization of a heating circuit for energy-efficient buildings}, series = {Energy Technology}, volume = {4}, journal = {Energy Technology}, number = {1}, publisher = {WILEY-VCH Verlag}, address = {Weinheim}, isbn = {2194-4296}, doi = {10.1002/ente.201500252}, pages = {136 -- 144}, year = {2015}, abstract = {The conference center darmstadtium in Darmstadt is a prominent example of energy efficient buildings. Its heating system consists of different source and consumer circuits connected by a Zortstr{\"o}m reservoir. Our goal was to reduce the energy costs of the system as much as possible. Therefore, we analyzed its supply circuits. The first step towards optimization is a complete examination of the system: 1) Compilation of an object list for the system, 2) collection of the characteristic curves of the components, and 3) measurement of the load profiles of the heat and volume-flow demand. Instead of modifying the system manually and testing the solution by simulation, the second step was the creation of a global optimization program. The objective was to minimize the total energy costs for one year. We compare two different topologies and show opportunities for significant savings.}, language = {en} } @article{PoettgenEdererAltherretal.2015, author = {P{\"o}ttgen, Philipp and Ederer, Thorsten and Altherr, Lena and Pelz, Peter F.}, title = {Developing a control strategy for booster stations under uncertain load}, series = {Applied Mechanics and Materials}, volume = {807}, journal = {Applied Mechanics and Materials}, number = {807}, publisher = {Trans Tech Publications}, address = {B{\"a}ch}, isbn = {1662-7482}, doi = {10.4028/www.scientific.net/AMM.807.241}, pages = {241 -- 246}, year = {2015}, abstract = {Booster stations can fulfill a varying pressure demand with high energy-efficiency, because individual pumps can be deactivated at smaller loads. Although this is a seemingly simple approach, it is not easy to decide precisely when to activate or deactivate pumps. Contemporary activation controls derive the switching points from the current volume flow through the system. However, it is not measured directly for various reasons. Instead, the controller estimates the flow based on other system properties. This causes further uncertainty for the switching decision. In this paper, we present a method to find a robust, yet energy-efficient activation strategy.}, language = {en} } @inproceedings{PuetzBaierBrauneretal.2022, author = {P{\"u}tz, Sebastian and Baier, Ralph and Brauner, Philipp and Brillowski, Florian and Dammers, Hannah and Liehner, Luca and Mertens, Alexander and Rodemann, Niklas and Schneider, Sebastian and Schollemann, Alexander and Steuer-Dankert, Linda and Vervier, Luisa and Gries, Thomas and Leicht-Scholten, Carmen and Nagel, Saskia K. and Piller, Frank T. and Schuh, G{\"u}nther and Ziefle, Martina and Nitsch, Verena}, title = {An interdisciplinary view on humane interfaces for digital shadows in the internet of production}, series = {2022 15th International Conference on Human System Interaction (HSI)}, booktitle = {2022 15th International Conference on Human System Interaction (HSI)}, publisher = {IEEE}, isbn = {978-1-6654-6823-7 (Print)}, issn = {2158-2246 (Print)}, doi = {10.1109/HSI55341.2022.9869467}, pages = {8 Seiten}, year = {2022}, abstract = {Digital shadows play a central role for the next generation industrial internet, also known as Internet of Production (IoP). However, prior research has not considered systematically how human actors interact with digital shadows, shaping their potential for success. To address this research gap, we assembled an interdisciplinary team of authors from diverse areas of human-centered research to propose and discuss design and research recommendations for the implementation of industrial user interfaces for digital shadows, as they are currently conceptualized for the IoP. Based on the four use cases of decision support systems, knowledge sharing in global production networks, human-robot collaboration, and monitoring employee workload, we derive recommendations for interface design and enhancing workers' capabilities. This analysis is extended by introducing requirements from the higher-level perspectives of governance and organization.}, language = {en} }