TY - JOUR A1 - Velraj, R. A1 - Seeniraj, R. V. A1 - Hafner, B. A1 - Faber, Christian A1 - Schwarzer, Klemens T1 - Heat transfer enhancement in a latent heat storage system JF - Solar energy. Vol. 65, iss. 3 Y1 - 1999 SN - 0038-092X SP - 171 EP - 180 ER - TY - CHAP A1 - Veettil, Yadu Krishna Morassery A1 - Rakshit, Shantam A1 - Schopen, Oliver A1 - Kemper, Hans A1 - Esch, Thomas A1 - Shabani, Bahman ED - Bin Abdollah, Mohd Fadzli ED - Amiruddin, Hilmi ED - Singh, Amrik Singh Phuman ED - Munir, Fudhail Abdul ED - Ibrahim, Asriana T1 - Automated Control System Strategies to Ensure Safety of PEM Fuel Cells Using Kalman Filters T2 - Proceedings of the 7th International Conference and Exhibition on Sustainable Energy and Advanced Materials (ICE-SEAM 2021), Melaka, Malaysia N2 - Having well-defined control strategies for fuel cells, that can efficiently detect errors and take corrective action is critically important for safety in all applications, and especially so in aviation. The algorithms not only ensure operator safety by monitoring the fuel cell and connected components, but also contribute to extending the health of the fuel cell, its durability and safe operation over its lifetime. While sensors are used to provide peripheral data surrounding the fuel cell, the internal states of the fuel cell cannot be directly measured. To overcome this restriction, Kalman Filter has been implemented as an internal state observer. Other safety conditions are evaluated using real-time data from every connected sensor and corrective actions automatically take place to ensure safety. The algorithms discussed in this paper have been validated thorough Model-in-the-Loop (MiL) tests as well as practical validation at a dedicated test bench. KW - control system KW - PEM fuel cells KW - Kalman filter Y1 - 2022 SN - 978-981-19-3178-9 SN - 978-981-19-3179-6 (E-Book) U6 - https://doi.org/10.1007/978-981-19-3179-6_55 SN - 2195-4356 N1 - 7th International Conference and Exhibition on Sustainable Energy and Advanced Material (ICE-SEAM 2021), Universiti Teknikal Malaysia Melaka (UTeM), Malaysia, in association with the Universitas Sebelas Maret (UNS), Indonesia, 23 November 2021 SP - 296 EP - 299 PB - Springer Nature CY - Singapore ER - TY - CHAP A1 - Vedral, Andreas A1 - Wollert, Jörg A1 - Buda, A. A1 - Altrock, R. T1 - The capability of bluetooth for real-time transmission in automation T2 - Proceedings of the IASTED International Conference on Networks and Communication Systems 2006 : March 29 - 31, 2006, Chiang Mai, Thailand Y1 - 2006 SP - 168 EP - 175 PB - Acta Pr. CY - Anaheim, Calif. ER - TY - CHAP A1 - Vedral, Andreas A1 - Wollert, Jörg T1 - Service based Bluetooth dual-hop networks using CORBA T2 - Proceedings of the IASTED International Conference on Artificial Intelligence and Applications : as part of the 23rd IASTED International Multi-Conference on Applied Informatics ; February 14 - 16, 2005, Innsbruck, Austria Y1 - 2005 SN - 0-88986-457-8 SP - 724 EP - 728 PB - Acta Pr. CY - Anaheim, Calif. ER - TY - CHAP A1 - Vedral, Andreas A1 - Wollert, Jörg T1 - Die Analyse industrieller funkgestützter Kommunikationskanäle T2 - Elektrische Automatisierung - Systeme und Komponenten : SPS/IPC/Drives 2006, Fachmesse & Kongress, 28. - 30. Nov. 2006, Nürnberg Y1 - 2006 SN - 9783800729944 SP - 279 EP - 288 PB - VDE-Verl. CY - Berlin ER - TY - CHAP A1 - Vedral, Andreas A1 - Wollert, Jörg T1 - Analyse und Definition der Qualität von Funkkanälen für die Echtzeitübertragung T2 - Funkgestützte Kommunikation in der industriellen Automatisierungstechnik : Tagung Düsseldorf, 4. und 5. Mai 2004. (VDI-Berichte ; 1843) Y1 - 2004 SN - 3-18-091843-8 SP - 113 EP - 122 PB - VDI-Verl. CY - Düsseldorf ER - TY - CHAP A1 - Vedral, Andreas A1 - Wollert, Jörg T1 - Ansatz eines dienstorientierten Ad-Hoc netzwerkfähigen Bluetooth-Netzwerks mit CORBA-Schnittstelle für drahtgebundene und drahtlose Netzwerke T2 - Bluetooth : 4. Kongress, Dortmund, 29. - 30 Januar 2003 Y1 - 2003 SP - 1 EP - 13 ER - TY - CHAP A1 - Vedral, Andreas A1 - Wollert, Jörg T1 - Praktische Untersuchungen zum zeitlichen Übertragungs- und Bündelfehlerverhalten der IEEE 802.15.4 T2 - ZigBee & Co. - drahtlose Nahbereichsnetzwerke : 04. April 2006, München Y1 - 2006 PB - Design&Elektronik CY - Poing ER - TY - CHAP A1 - Vedral, Andreas A1 - Kruse, Thomas A1 - Wollert, Jörg T1 - Development and performance evaluation of an antenna diversity module for industrial communication based on IEEE 802.15.4 T2 - 12th IEEE International Conference on Emerging Technologies and Factory Automation : ETFA 2007 : proceedings : 25-28 Sept. 2007, Patras, Greece Y1 - 2007 SN - 1424408261 ; 9781424408269 U6 - https://doi.org/10.1109/EFTA.2007.4416769 SP - 177 EP - 186 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Vedral, A. A1 - Wollert, Jörg T1 - Analysis of error and time behavior of the IEEE 802.15.4 PHY-layer in an industrial environment T2 - Proceedings / 2006 IEEE International Workshop on Factory Communication Systems : June 28th - 30th, 2006 Y1 - 2006 SN - 1-4244-0379-0 SP - 119 EP - 124 PB - IEEE Operations Center CY - Piscataway, NJ ER - TY - THES A1 - Vaut, Ina T1 - Hippocampus N2 - Hippocampus – Eine Publikation über das Erscheinungsbild und Verhaltensweisen von Seepferdchen, ihre Lebensräume, Bedrohungen und die Schutzmaßnahmen. Seepferdchen gehören zu den wenigen Fischarten, die allgemein bekannt sind. In den meisten Fällen werden Seepferdchen einfach als »süß« beschrieben. Doch Seepferdchen haben weit mehr zu bieten als ihr märchenhaftes Aussehen. Diese Publikation setzt sich mit kuriosen Erkenntnissen, aktuellen Forschungsergebnissen und Mythen rund um Seepferdchen auseinander und dient als Einstieg in die Thematik. KW - Editorail Design KW - Publikation KW - Seepferdchen KW - Habitate KW - Spezies Y1 - 2023 N1 - Für diese Arbeit steht kein Volltext zur Verfügung. PB - FH Aachen CY - Aachen ER - TY - THES A1 - Vasevska, Ivana T1 - FEEL IT_HEAL IT - the process of healing repressed emotions N2 - Unsere Emotionen beeinflussen die Art und Weise, wie wir mit uns selbst und der Welt um uns herum umgehen. Sie wirken sich auf unsere geistige und körperliche Gesundheit aus. Da einige unserer Emotionen als „schlecht“ oder „negativ“ wahrgenommen werden, erlauben wir uns oft nicht, sie zu fühlen, und wir unterdrücken sie. Ziel dieses Projekts ist es, mithilfe von Fotografie und Grafik zu zeigen, wie man mit unangenehmen und so genannten „negativen“ Emotionen umgehen kann. Der Schwerpunkt liegt gleichermaßen auf dem konzeptionellen und kreativen Teil. Dabei wurden ein Modell und wechselnde Farblichter verwendet, um die emotionalen Zustände einer Person darzustellen, die diese Transformation durchläuft. Ein weiteres Ziel ist es, die Bedeutung eines bewussteren Umgangs mit unseren Emotionen zu betonen. Das Endmedium ist ein Fotobuch inkl. Piktogramme, die die fünf Stadien repräsentieren: Leiden, Bewusstsein, Konfrontation, Ausdruck und Akzeptanz. (Suffering, Awareness, Confrontation, Expression and Acceptance). KW - Emotionen KW - Integration KW - Verdrängung KW - Heilung KW - Emotionaler Schmerz Y1 - 2022 PB - FH Aachen CY - Aachen ER - TY - GEN A1 - Varriale, Ludovica A1 - Kuka, Katrin A1 - Tippkötter, Nils A1 - Ulber, Roland T1 - Use of a green biomass in a biorefinery platform T2 - Chemie Ingenieur Technik N2 - The emerging environmental issues due to the use of fossil resources are encouraging the exploration of new renewable resources. Biomasses are attracting more interest due to the low environmental impacts, low costs, and high availability on earth. In this scenario, green biorefineries are a promising platform in which green biomasses are used as feedstock. Grasses are mainly composed of cellulose and hemicellulose, and lignin is available in a small amount. In this work, a perennial ryegrass was used as feedstock to develop a green bio-refinery platform. Firstly, the grass was mechanically pretreated, thus obtaining a press juice and a press cake fraction. The press juice has high nutritional values and can be employed as part of fermentation media. The press cake can be employed as a substrate either in enzymatic hydrolysis or in solid-state fermentation. The overall aim of this work was to demonstrate different applications of both the liquid and the solid fractions. For this purpose, the filamentous fungus A. niger and the yeast Y. lipolythica were selected for their ability to produce citric acid. Finally, the possibility was assessed to use the press juice as part of fermentation media to cultivate S. cerevisiae and lactic acid bacteria for ethanol and lactic acid fermentation. Y1 - 2022 U6 - https://doi.org/10.1002/cite.202255095 SN - 0009-286X SN - 1522-2640 (eISSN) N1 - ProcessNet and DECHEMA‐BioTechNet Jahrestagungen 2022 together with 13th ESBES Symposium 2022, 12. - 15. September 2022, Eurogress Aachen VL - 94 IS - 9 SP - 1299 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Varga, Laszlo A1 - Davinson, Thomas A1 - Glorius, Jan A1 - Jurado, Beatrix A1 - Langer, Christoph A1 - Lederer-Woods, Claudia A1 - Litvinov, Yuri A. A1 - Reifarth, Rene A1 - Slavkovska, Zuzana A1 - Stöhlker, Thomas A1 - Woods, Phil J. A1 - Xing, Yuan Ming T1 - Towards background-free studies of capture reaction in a heavy-ion storage ring JF - Journal of Physics: Conference Series N2 - Stored and cooled, highly-charged ions offer unprecedented capabilities for precision studies in the realm of atomic, nuclear structure and astrophysics[1]. After the successful investigation of the 96Ru(p,7)97Rh reaction cross section in 2009[2], the first measurement of the 124Xe(p,7)125Cs reaction cross section has been performed with decelerated, fully-ionized 124Xe ions in 2016 at the Experimental Storage Ring (ESR) of GSI[3]. Using a Double Sided Silicon Strip Detector, introduced directly into the ultra-high vacuum environment of a storage ring, the 125Cs proton-capture products have been successfully detected. The cross section has been measured at 5 different energies between 5.5AMeV and 8AMeV, on the high energy tail of the Gamow-window for hot, explosive scenarios such as supernovae and X-ray binaries. The elastic scattering on the H2 gas jet target is the major source of background to count the (p,7) events. Monte Carlo simulations show that an additional slit system in the ESR in combination with the energy information of the Si detector will enable background free measurements of the proton-capture products. The corresponding hardware is being prepared and will increase the sensitivity of the method tremendously. Y1 - 2020 VL - 1668 IS - Art 012046 PB - IOP CY - Bristol ER - TY - JOUR A1 - Vant, Christianne A1 - Staat, Manfred A1 - Baroud, Gamal T1 - Percutaneous Vertebroplasty: A Review of Two Intraoperative Complications JF - Bioengineering in Cell and Tissue Research / Artmann, Gerhard M. ; Chien, Shu (Eds.) Y1 - 2008 SN - 978-3-540-75408-4 SP - 527 EP - 539 PB - Springer CY - Berlin ER - TY - CHAP A1 - Valero, Daniel A1 - Vogel, Jochen A1 - Schmidt, Daniel A1 - Bung, Daniel Bernhard T1 - Three-dimensional flow structure inside the cavity of a non-aerated stepped chute T2 - 7th IAHR International Symposium on Hydraulic Structures, Aachen, Germany, 15-18 May Y1 - 2018 SN - 978-0-692-13277-7 U6 - https://doi.org/10.15142/T3GH17 ER - TY - JOUR A1 - Valero, Daniel A1 - Viti, Nicolo A1 - Gualtieri, Carlo T1 - Numerical Simulation of Hydraulic Jumps. Part 1: Experimental Data for Modelling Performance Assessment JF - Water Y1 - 2019 U6 - https://doi.org/10.3390/w11010036 SN - 2073-4441 VL - 11 IS - 1 SP - Art. Nr. 36 PB - MDPI CY - Basel ER - TY - JOUR A1 - Valero, Daniel A1 - Schalko, Isabella A1 - Friedrich, Heide A1 - Abad, Jorge D. A1 - Bung, Daniel Bernhard A1 - Donchyts, Gennadii A1 - Felder, Stefan A1 - Ferreira, Rui M. L. A1 - Hohermuth, Benjamin A1 - Kramer, Matthias A1 - Li, Danxun A1 - Mendes, Luis A1 - Moreno-Rodenas, Antonio A1 - Nones, Michael A1 - Paron, Paolo A1 - Ruiz-Villanueva, Virginia A1 - Wang, Ruo-Qian A1 - Franca, Mario J. T1 - Pathways towards democratization of hydro-environment observations and data JF - Iahr White Paper Series Y1 - 2021 IS - 1 SP - 1 EP - 9 PB - International Association for Hydro-Environment Engineering and Research (IAHR) ER - TY - CHAP A1 - Valero, Daniel A1 - Kramer, Matthias A1 - Bung, Daniel Bernhard A1 - Chanson, Hubert T1 - A stochastic bubble generator for air-water flow research T2 - E-proceedings of the 38th IAHR World Congress, September 1-6, 2019, Panama City, Panama Y1 - 2019 U6 - https://doi.org/10.3850/38WC092019-0909 SP - 5714 EP - 5721 ER - TY - JOUR A1 - Valero, Daniel A1 - Chanson, Hubert A1 - Bung, Daniel Bernhard T1 - Robust estimators for turbulence properties assessment Y1 - 2019 SP - 1 EP - 24 ER -