@inproceedings{SattlerSchneiderAngeleetal.2022,
  author    = {Sattler, Johannes Christoph and Schneider, Iesse Peer and Angele, Florian and Atti, Vikrama and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf},
  title     = {Development of heliostat field calibration methods: Theory and experimental test results},
  series = {SolarPACES 2022 conference proceedings},
  booktitle = {SolarPACES 2022 conference proceedings},
  number    = {1},
  publisher = {TIB Open Publishing},
  address   = {Hannover},
  issn      = {2751-9899 (online)},
  doi       = {10.52825/solarpaces.v1i.678},
  pages     = {9 Seiten},
  year      = {2022},
  abstract  = {In this work, three patent pending calibration methods for heliostat fields of central receiver systems (CRS) developed by the Solar-Institut J{\"u}lich (SIJ) of the FH Aachen University of Applied Sciences are presented. The calibration methods can either operate in a combined mode or in stand-alone mode. The first calibration method, method A, foresees that a camera matrix is placed into the receiver plane where it is subjected to concentrated solar irradiance during a measurement process. The second calibration method, method B, uses an unmanned aerial vehicle (UAV) such as a quadrocopter to automatically fly into the reflected solar irradiance cross-section of one or more heliostats (two variants of method B were tested). The third calibration method, method C, foresees a stereo central camera or multiple stereo cameras installed e.g. on the solar tower whereby the orientations of the heliostats are calculated from the location detection of spherical red markers attached to the heliostats. The most accurate method is method A which has a mean accuracy of 0.17 mrad. The mean accuracy of method B variant 1 is 1.36 mrad and of variant 2 is 1.73 mrad. Method C has a mean accuracy of 15.07 mrad. For method B there is great potential regarding improving the measurement accuracy. For method C the collected data was not sufficient for determining whether or not there is potential for improving the accuracy.},
  language  = {en}
}
@inproceedings{SattlerAttiAlexopoulosetal.2022,
  author    = {Sattler, Johannes Christoph and Atti, Vikrama and Alexopoulos, Spiros and Teixeira Boura, Cristiano Jos{\´e} and Herrmann, Ulf and Dutta, Siddharth and Kioutsioukis, Ioannis},
  title     = {DNI forecast tool for the smart operation of a parabolic trough collector system with concrete thermal energy storage: Theory, results and outlook},
  series = {SolarPACES 2022 conference proceedings},
  booktitle = {SolarPACES 2022 conference proceedings},
  number    = {1},
  publisher = {TIB Open Publishing},
  address   = {Hannover},
  issn      = {2751-9899 (online)},
  doi       = {10.52825/solarpaces.v1i.731},
  pages     = {9 Seiten},
  year      = {2022},
  abstract  = {This work presents a basic forecast tool for predicting direct normal irradiance (DNI) in hourly resolution, which the Solar-Institut J{\"u}lich (SIJ) is developing within a research project. The DNI forecast data shall be used for a parabolic trough collector (PTC) system with a concrete thermal energy storage (C-TES) located at the company KEAN Soft Drinks Ltd in Limassol, Cyprus. On a daily basis, 24-hour DNI prediction data in hourly resolution shall be automatically produced using free or very low-cost weather forecast data as input. The purpose of the DNI forecast tool is to automatically transfer the DNI forecast data on a daily basis to a main control unit (MCU). The MCU automatically makes a smart decision on the operation mode of the PTC system such as steam production mode and/or C-TES charging mode. The DNI forecast tool was evaluated using historical data of measured DNI from an on-site weather station, which was compared to the DNI forecast data. The DNI forecast tool was tested using data from 56 days between January and March 2022, which included days with a strong variation in DNI due to cloud passages. For the evaluation of the DNI forecast reliability, three categories were created and the forecast data was sorted accordingly. The result was that the DNI forecast tool has a reliability of 71.4 \% based on the tested days. The result fulfils SIJ's aim to achieve a reliability of around 70 \%, but SIJ aims to still improve the DNI forecast quality.},
  language  = {en}
}
@inproceedings{SakthivelWeppner2006,
  author    = {Sakthivel, Mariappan and Weppner, Werner},
  title     = {Response behaviour of a hydrogen sensor based on ionic conducting polymer-metal interfaces prepared by the chemical reduction method},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1399},
  year      = {2006},
  abstract  = {A solid-state amperometric hydrogen sensor based on a protonated Nafion membrane and catalytic active electrode operating at room temperature was fabricated and tested. Ionic conducting polymer-metal electrode interfaces were prepared chemically by using the impregnation-reduction method. The polymer membrane was impregnated with tetra-ammine platinum chloride hydrate and the metal ions were subsequently reduced by using either sodium tetrahydroborate or potassium tetrahydroborate. The hydrogen sensing characteristics with air as reference gas is reported. The sensors were capable of detecting hydrogen concentrations from 10 ppm to 10\% in nitrogen. The response time was in the range of 10-30 s and a stable linear current output was observed. The thin Pt films were characterized by XRD, Infrared Spectroscopy, Optical Microscopy, Atomic Force Microscopy, Scanning Electron Microscopy and EDAX.},
  subject      = {Biosensor},
  language  = {en}
}
@inproceedings{SajatovicRihacekHaindletal.2007,
  author    = {Sajatovic, Miodrag and Rihacek, Christoph and Haindl, Bernhard and Schnell, Michael and Brandes, Sinja and Gligorevic, Snjezana},
  title     = {Broadband VHF (B-VHF) project achievements and follow-on activities},
  series = {Integrated Communications, Navigation and Surveillance Conference : Herndon, VA, 1 - 3 May 2007},
  booktitle = {Integrated Communications, Navigation and Surveillance Conference : Herndon, VA, 1 - 3 May 2007},
  organization    = {Institute of Electrical and Electronics Engineers},
  isbn      = {1-4244-1216-1},
  pages     = {1 -- 8},
  year      = {2007},
  language  = {en}
}
@inproceedings{SadeghfamSadeghiAhangarElgamaletal.2019,
  author    = {Sadeghfam, Arash and Sadeghi-Ahangar, A. and Elgamal, Abdelrahman and Heuermann, Holger},
  title     = {Design and Development of a Novel Self-Igniting Microwave Plasma Jet for Industrial Applications},
  series = {IEEE MTT-S International Microwave Symposium Digest},
  booktitle = {IEEE MTT-S International Microwave Symposium Digest},
  isbn      = {978-172811309-8},
  pages     = {63 -- 66},
  year      = {2019},
  language  = {en}
}
@inproceedings{RuettersWeinheimerBragard2018,
  author    = {R{\"u}tters, Ren{\´e} and Weinheimer, Marius and Bragard, Michael},
  title     = {Teaching Control Theory with a Simplified Helicopter Model and a Classroom Fitting Hardware Test-Bench},
  series = {2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)},
  booktitle = {2018 IEEE 59th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)},
  isbn      = {978-1-5386-6903-7},
  doi       = {10.1109/RTUCON.2018.8659871},
  year      = {2018},
  language  = {en}
}
@inproceedings{RuettersBragardDolls2024,
  author    = {R{\"u}tters, Ren{\´e} and Bragard, Michael and Dolls, Sarah},
  title     = {The Inverted Rotary Pendulum: Facilitating Practical Teaching in Advanced Control Engineering},
  series = {2024 IEEE Global Engineering Education Conference (EDUCON)},
  booktitle = {2024 IEEE Global Engineering Education Conference (EDUCON)},
  publisher = {IEEE},
  address   = {New York, NY},
  issn      = {2165-9559},
  doi       = {10.1109/EDUCON60312.2024.10578937},
  pages     = {5 Seiten},
  year      = {2024},
  abstract  = {This paper outlines a practical approach to teach control engineering principles, with an inverted rotary pendulum, serving as an illustrative example. It shows how the pendulum is embedded in an advanced course of control engineering. This approach is incorporated into a flipped-classroom concept, as well as classical teaching concepts, offering students practical experience in control engineering. In addition, the design of the pendulum is shown, using a Raspberry Pi as the target platform for Matlab Simulink. This pendulum can be used in the classroom to evaluate the controller design mentioned above. It is analysed if the use of the pendulum generates a deeper understanding of the learning contents.},
  language  = {en}
}
@inproceedings{RousseauKern2014,
  author    = {Rousseau, Alain and Kern, Alexander},
  title     = {How to deal with environmental risk in IEC 62305-2},
  series = {2014 International Conference on Lightning Protection (ICLP), Shanghai, China},
  booktitle = {2014 International Conference on Lightning Protection (ICLP), Shanghai, China},
  organization    = {International Conference on Lightning Protection <2014, Shanghai>},
  pages     = {521 -- 527},
  year      = {2014},
  abstract  = {The 2nd edition of the lightning risk management standard (IEC 62305-2) considers structures, which may endanger environment. In these cases, the loss is not limited to the structure itself, which is valid for usual structures. In the past (Edition 1) this danger was simply taken into account by a special hazard factor, multiplying the existing risk for the structure with a number. Now, in the edition 2, we add to the risk for the structure itself a "second risk" due to the losses outside the structure. The losses outside can be treated independently from what occurs inside. This is a major advantage to analyze the risk for sensitive structures, like chemical plants, nuclear plants, or structures containing explosives, etc. In this paper, the existing procedure given by the European version EN 62305-2 Ed.2 is further developed and applied to a few structures.},
  language  = {en}
}
@inproceedings{RothMoehringTippkoetter2016,
  author    = {Roth, J. and M{\"o}hring, S. and Tippk{\"o}tter, Nils},
  title     = {Characterization and evaluation of lignocellulosic biomass 130 hydrolysates for ABE fermentation},
  series = {New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany},
  booktitle = {New frontiers of biotech-processes (Himmelfahrtstagung) : 02-04 May 2016, Rhein-Mosel-Halle, Koblenz/Germany},
  publisher = {DECHEMA},
  address   = {Frankfurt am Main},
  pages     = {130},
  year      = {2016},
  language  = {en}
}
@inproceedings{RosinKubalskiButenweg2014,
  author    = {Rosin, Julia and Kubalski, Thomas and Butenweg, Christoph},
  title     = {Seismic Design of cylindrical liquid storage tanks},
  series = {Seismic design of industrial facilities : proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference) ; [Aachen, 26. - 27. September 2013] / Chair of Structural Statics and Dynamics, RWTH Aachen. Sven Klinkel ..., ed.},
  booktitle = {Seismic design of industrial facilities : proceedings of the International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference) ; [Aachen, 26. - 27. September 2013] / Chair of Structural Statics and Dynamics, RWTH Aachen. Sven Klinkel ..., ed.},
  publisher = {Springer Vieweg},
  address   = {Wiesbaden},
  organization    = {International Conference on Seismic Design of Industrial Facilities <2013, Aachen>},
  isbn      = {978-3-658-02810-7 (E-Book) ; 978-3-658-02809-1 (Print)},
  doi       = {10.1007/978-3-658-02810-7_36},
  pages     = {429 -- 440},
  year      = {2014},
  language  = {en}
}