@misc{PyczakBauerGoekenetal., author = {Pyczak, Florian and Bauer, Alexander and G{\"o}ken, Mathias and Lorenz, Uwe and Neumeier, Steffen and Oehring, Michael and Paul, Jonathan and Schell, Norbert and Schreyer, Andreas and Symanzik, Felix}, title = {The effect of tungsten content on the properties of L12-hardened Co-Al-W alloys}, series = {Journal of Alloys and Compounds}, journal = {Journal of Alloys and Compounds}, number = {632}, issn = {0925-8388}, pages = {110 -- 115}, language = {en} } @inproceedings{SchusterPaulRietzetal., author = {Schuster, Franka and Paul, Andreas and Rietz, Ren{\´e} and K{\"o}nig, Hartmut}, title = {Potentials of Using One-class SVM for Detecting Protocol-specific Anomalies in Industrial Networks}, series = {Proceedings of the 2015 IEEE Symposium on Computational Intelligence in Cyber Security (IEEE CICS 2015)}, booktitle = {Proceedings of the 2015 IEEE Symposium on Computational Intelligence in Cyber Security (IEEE CICS 2015)}, publisher = {IEEE Press}, address = {New York}, doi = {10.1109/SSCI.2015.22}, pages = {83 -- 90}, language = {en} } @inproceedings{PaulSchusterKoenig, author = {Paul, Andreas and Schuster, Franka and K{\"o}nig, Hartmut}, title = {Network Topology Exploration for Industrial Networks}, series = {2nd EAI International Conference on Industrial Networks and Intelligent Systems (INISCOM 2016), October 31 - November 1, 2016, Leicester, Great Britain}, booktitle = {2nd EAI International Conference on Industrial Networks and Intelligent Systems (INISCOM 2016), October 31 - November 1, 2016, Leicester, Great Britain}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-319-52568-6}, doi = {10.1007/978-3-319-52569-3}, pages = {63 -- 76}, language = {en} } @inproceedings{ZaussingerChristlGorenzetal., author = {Zaussinger, Florian and Christl, Andreas and Gorenz, Paul and Neben, Matthias and Egbers, Christoph}, title = {An applied Couette-Taylor system as a simplified bearing model}, series = {Book of abstracts, ICTW 19, 19th International Couette-Taylor Workshop, June 24-26, 2015 Cottbus, Germany}, booktitle = {Book of abstracts, ICTW 19, 19th International Couette-Taylor Workshop, June 24-26, 2015 Cottbus, Germany}, publisher = {BTU}, address = {Cottbus}, pages = {170 -- 171}, language = {en} } @misc{SchusterPaulKoenig, author = {Schuster, Franka and Paul, Andreas and K{\"o}nig, Hartmut}, title = {Messung der technischen IT-Sicherheit in Energieversorgungsanlagen zur Erf{\"u}llung des IT-Sicherheitsgesetzes}, series = {International Journal for Electricy and Heat Generation, VGB Powertech}, volume = {97}, journal = {International Journal for Electricy and Heat Generation, VGB Powertech}, number = {3}, issn = {1435-3199}, pages = {76 -- 82}, language = {de} } @inproceedings{SchusterKoppPauletal., author = {Schuster, Franka and Kopp, Fabian Malte and Paul, Andreas and K{\"o}nig, Hartmut}, title = {Attack and Fault Detection in Process Control Communication Using Unsupervised Machine Learning}, series = {IEEE 16th International Conference on Industrial Informatics (INDIN), Porto, Portugal, 18-20 July 2018}, booktitle = {IEEE 16th International Conference on Industrial Informatics (INDIN), Porto, Portugal, 18-20 July 2018}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-4829-2}, doi = {10.1109/INDIN.2018.8472054}, pages = {433 -- 438}, language = {en} } @inproceedings{SchusterPaulKoppetal., author = {Schuster, Franka and Paul, Andreas and Kopp, Fabian Malte and K{\"o}nig, Hartmut}, title = {Catching Intrusions: Classifier Performances for Detecting Network-specific Anomalies in Energy Systems}, series = {2018 International Conference on Smart Energy Systems and Technologies (SEST), Seville, Spain, September 2018}, booktitle = {2018 International Conference on Smart Energy Systems and Technologies (SEST), Seville, Spain, September 2018}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5386-5326-5}, doi = {10.1109/SEST.2018.8495702}, pages = {6}, language = {en} } @misc{KundelMeyerBirkhoferetal., author = {Kundel, Dominika and Meyer, Svenja and Birkhofer, Herbert and Fliessbach, Andreas and M{\"a}der, Paul and Scheu, Stefan and Kleunen, Mark van and Birkhofer, Klaus}, title = {Design and Manual to Construct Rainout-Shelters for Climate Change Experiments in Agroecosystems}, series = {Frontiers in Environmental Science}, volume = {6}, journal = {Frontiers in Environmental Science}, issn = {2296-665X}, doi = {10.3389/fenvs.2018.00014}, pages = {9}, abstract = {Climate change models predict reduced summer precipitations for most European countries, including more frequent and extreme summer droughts. Rainout-shelters which intercept part of the natural precipitation provide an effective tool to investigate effects of different precipitation levels on biodiversity and ecosystem functioning. In this study, we evaluate and describe in detail a fixed-location rainout-shelter (2.5 × 2.5 m) with partial interception of natural rainfall. We provide a complete parts list, a construction manual and detailed CAD drawings allowing to rebuild and use these shelters for rainfall manipulation studies. In addition, we describe a rainout-shelter control treatment giving the possibility to quantify and account for potential shelter artifacts. To test the rainout-shelters, we established the following three treatments each in eight winter wheat plots of the agricultural long-term farming system comparison trial DOK in Therwil (Switzerland): (1) A rainout-shelter with 65\% interception of rainfall, (2) a rainout-shelter control without interception of rainfall, and (3) an ambient control. The rainout-shelter effectively excluded 64.9\% of the ambient rainfall, which is very close to the a priori calculated exclusion of 65.1\%. In comparison to the ambient control plots, gravimetric soil moisture decreased under the rainout-shelter by a maximum of 11.1 percentage points. Air temperature under the rainout-shelter differed little from the ambient control (-0.55°C in 1.2 m height and +0.19°C in 0.1 m height), whereas soil temperatures were slightly higher in periods of high ambient temperature (+1.02°C), but remained basically unaffected in periods of low ambient temperature (+0.14°C). A maximum edge effect of 0.75 m defined a sampling area of 1 × 1 m under the rainout-shelter. The rainout-shelters presented here, proved to sustain under heavy weather and they were well-suited to be used in agricultural fields where management operations require the removal of the rainout-shelters for management operations. Overall, the results confirmed the good performance of the presented rainout-shelters regarding rainout-shelter artifacts, predictable rain exclusion, and feasibility for experimental studies in agricultural fields.}, language = {en} } @misc{LazurenkoStarkEsikovetal., author = {Lazurenko, Daria V. and Stark, Andreas and Esikov, Maksim A. and Paul, Jonathan and Bataev, Ivan A. and Kashimbetova, Adelya A. and Mali, Vyacheslav I. and Lorenz, Uwe and Pyczak, Florian}, title = {Ceramic-Reinforced γ-TiAl-Based Composites: Synthesis, Structure, and Properties}, series = {Materials}, volume = {12}, journal = {Materials}, number = {4}, issn = {1996-1944}, doi = {10.3390/ma12040629}, pages = {20}, language = {en} } @incollection{RieckWressneggerKoenigetal., author = {Rieck, Konrad and Wressnegger, Christian and K{\"o}nig, Hartmut and Paul, Andreas and Schuster, Franka and Kanisch, Heiko and Moder, Christoph}, title = {Werkzeuge und Ver{\"o}ffentlichungen}, series = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, booktitle = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, editor = {Rudel, Steffi and Lechner, Ulrike}, edition = {1. Auflage}, publisher = {Professur f{\"u}r Wirtschaftsinformatik, Universit{\"a}t der Bundeswehr M{\"u}nchen}, address = {Neubiberg}, isbn = {978-3-943207-33-0}, pages = {S. 85}, language = {de} } @incollection{RieckWressneggerKoenigetal., author = {Rieck, Konrad and Wressnegger, Christian and K{\"o}nig, Hartmut and Paul, Andreas and Schuster, Franka and Kanisch, Heiko and Moder, Christoph}, title = {Implementierung und Umsetzung}, series = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, booktitle = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, editor = {Rudel, Steffi and Lechner, Ulrike}, edition = {1. Auflage}, publisher = {Professur f{\"u}r Wirtschaftsinformatik, Universit{\"a}t der Bundeswehr M{\"u}nchen}, address = {Neubiberg}, isbn = {978-3-943207-33-0}, pages = {122 -- 124}, language = {de} } @incollection{SchusterPaulKoenig, author = {Schuster, Franka and Paul, Andreas and K{\"o}nig, Hartmut}, title = {Anwendung des SICIA-Verfahrens in der Praxis - am Beispiel eines ISMS}, series = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, booktitle = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, editor = {Rudel, Steffi and Lechner, Ulrike}, edition = {1. Auflage}, publisher = {Professur f{\"u}r Wirtschaftsinformatik, Universit{\"a}t der Bundeswehr M{\"u}nchen}, address = {Neubiberg}, isbn = {978-3-943207-33-0}, pages = {139 -- 144}, language = {de} } @misc{SchusterPaulMehneretal., author = {Schuster, Franka and Paul, Andreas and Mehner, Stefan and K{\"o}nig, Hartmut and Kanisch, Heiko}, title = {IT-Sicherheit im Kraftwerk - Methoden zur automatisierten Sicherheitsbewertung und Anomalieerkennung in hochsensiblen Netzen}, series = {51. Kraftwerkstechnisches Kolloquium, 21. - 23. Oktober 2019, Dresden}, journal = {51. Kraftwerkstechnisches Kolloquium, 21. - 23. Oktober 2019, Dresden}, publisher = {SAXONIA Standortentwicklungs- und -verwaltungsgesellschaft mbH}, address = {Freiberg}, isbn = {978-3-934409-94-1}, pages = {680 -- 703}, abstract = {Die zunehmende Digitalisierung auch in Kraftwerken erfordert entsprechend auf diesen Bereich zugeschnittene IT-Sicherheitsverfahren und -technologien. Aktuell stellt die obligatorische Implementierung eines angemessenen Sicherheitsprozesses, wie eines Informationssicherheitsmanagementsystems (ISMS), Betreiber von Erzeugungsanlagen, Energienetzen und anderen kritischen Infrastrukturen vor eine große Herausforderung, denn es gilt, zahlreiche Anforderungen bei der Implementierung zu erf{\"u}llen, ohne dass konkrete Methoden zur Umsetzung verf{\"u}gbar sind. Gleichzeitig ist derEinsatz von IT-Sicherheitstechnologien aus der B{\"u}rowelt aufgrund g{\"a}nzlich anderer Eigenschaften und Anforderungen industrieller Netze kaum m{\"o}glich. Zur Adressierung dieser Problematik wurden von der Brandenburgischen Technischen Universit{\"a}t Cottbus-Senftenberg (BTU) und der Lausitz Energie Kraftwerke AG (LEAG) innovative Verfahren zur (1) systematischen Bewertung sowie (2) Verbesserung der IT-Sicherheit in hochsensiblen Netzen konzipiert und prototypisch implementiert, die ein diesem Beitrag mit den zugeh{\"o}rigen Forschungsprojekten vorgestellt werden. Um eine Beeinflussung empfindlicher Kraftwerksanlagen auszuschließen, wurde f{\"u}r alle Methoden ein nichtintrusiver Entwicklungsansatz verfolgt, der sich durch eine passive und vom jeweiligen industriellen Prozess vollst{\"a}ndig entkoppelte Analyse auszeichnet und sich daher f{\"u}r einen breiten Einsatz in Netzen mit hohen Verf{\"u}gbarkeitsanforderungen eignet.}, language = {de} } @incollection{RieckWressneggerKoenigetal., author = {Rieck, Konrad and Wressnegger, Christian and K{\"o}nig, Hartmut and Paul, Andreas and Schuster, Franka and Kanisch, Heiko and Moder, Christoph}, title = {INDI - Intelligente Intrusion-Detection-Systeme f{\"u}r Industrienetze}, series = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, booktitle = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, editor = {Rudel, Steffi and Lechner, Ulrike}, edition = {1. Auflage}, publisher = {Professur f{\"u}r Wirtschaftsinformatik, Universit{\"a}t der Bundeswehr M{\"u}nchen}, address = {Neubiberg}, isbn = {978-3-943207-33-0}, pages = {S. 19}, language = {de} } @incollection{SchusterPaulKoenig, author = {Schuster, Franka and Paul, Andreas and K{\"o}nig, Hartmut}, title = {SICIA - IT-Sicherheit in kritischen Netzen messen und systematisch verbessern}, series = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, booktitle = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, editor = {Rudel, Steffi and Lechner, Ulrike}, edition = {1. Auflage}, publisher = {Professur f{\"u}r Wirtschaftsinformatik, Universit{\"a}t der Bundeswehr M{\"u}nchen}, address = {Neubiberg}, isbn = {978-3-943207-33-0}, pages = {27 -- 28}, language = {de} } @incollection{RieckWressneggerKoenigetal., author = {Rieck, Konrad and Wressnegger, Christian and K{\"o}nig, Hartmut and Paul, Andreas and Schuster, Franka and Kanisch, Heiko and Moder, Christoph}, title = {Prozessnahe Kommunikation als besondere Herausforderung}, series = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, booktitle = {IT-Sicherheit f{\"u}r Kritische Infrastrukturen - State of the Art : Ergebnisse des F{\"o}rderschwerpunkts IT-Sicherheit f{\"u}r Kritische Infrastrukturen ITS/KRITIS des BMBF}, editor = {Rudel, Steffi and Lechner, Ulrike}, edition = {1. Auflage}, publisher = {Professur f{\"u}r Wirtschaftsinformatik, Universit{\"a}t der Bundeswehr M{\"u}nchen}, address = {Neubiberg}, isbn = {978-3-943207-33-0}, pages = {S. 57}, language = {de} } @misc{KundelBodenhausenBrachtJorgensenetal., author = {Kundel, Dominika and Bodenhausen, Natacha and Bracht J{\o}rgensen, Helene and Truu, Jaak and Birkhofer, Klaus and Hedlund, Katarina and M{\"a}der, Paul and Fliessbach, Andreas}, title = {Effects of simulated drought on biological soil quality, microbial diversity and yields under long-term conventional and organic agriculture}, series = {FEMS Microbiology Ecology}, volume = {96}, journal = {FEMS Microbiology Ecology}, number = {12}, issn = {1574-6941}, doi = {doi: 10.1093/femsec/fiaa205}, pages = {12}, abstract = {Drought and agricultural management influence soil microorganisms with unknown consequences for the functioning ofagroecosystems. We simulated drought periods in organic (biodynamic) and conventional wheat fields and monitoredeffects on soil water content, microorganisms and crops. Above the wilting point, water content and microbial respirationwere higher under biodynamic than conventional farming. Highest bacterial and fungal abundances were found inbiodynamically managed soils, and distinct microbial communities characterised the farming systems. Most biological soilquality parameters and crop yields were only marginally affected by the experimental drought, except for arbuscularmycorrhizal fungi (AMF), which increased in abundance under the experimental drought in both farming systems. AMFwere further strongly promoted by biodynamic farming resulting in almost three times higher AMF abundance underexperimental drought in the biodynamic compared with the conventional farming system. Our data suggest an improvedwater storage capacity under biodynamic farming and confirms positive effects of biodynamic farming on biological soilquality. The interactive effects of the farming system and drought may further be investigated under more substantialdroughts. Given the importance of AMF for the plant's water supply, more in-depth studies on AMF may help to clarify theirrole for yields under conditions predicted by future climate scenarios.}, language = {en} } @misc{LiPyczakStarketal., author = {Li, Yuzhi and Pyczak, Florian and Stark, Andreas and Wang, Li and Oehring, Michael and Paul, Jonathan and Lorenz, Uwe}, title = {Temperature dependence of misfit in different Co-Al-W ternary alloys measured by synchrotron X-ray diffraction}, series = {Journal of Alloys and Compounds}, volume = {819}, journal = {Journal of Alloys and Compounds}, issn = {0925-8388}, pages = {9}, language = {en} } @misc{LazurenkoLaptevGolkovskyetal., author = {Lazurenko, Daria V. and Laptev, Ilia S. and Golkovsky, Mikhail G. and Stark, Andreas and Paul, Jonathan and Bataev, Ivan A. and Ruktuev, Alexey A. and Song, Lin and Gollwitzer, Christian and Pyczak, Florian}, title = {Influence of the Ti/Al/Nb ratio on the structure and properties on intermetallic layers obtained on titanium by non-vacuum electron beam cladding}, series = {Materials Characterization}, volume = {163}, journal = {Materials Characterization}, issn = {1044-5803}, pages = {13}, language = {en} } @misc{FroebelStarkPauletal., author = {Fr{\"o}bel, Ulrich and Stark, Andreas and Paul, Jonathan and Pyczak, Florian}, title = {Assessment of the capability of Zr, Y, La, Gd, Dy, C, and Si to enhance the creep strength of gamma titanium aluminide alloys based on their effect on flow stress and thermal activation parameters}, series = {Intermetallics}, volume = {Vol. 162}, journal = {Intermetallics}, issn = {1879-0216}, doi = {10.1016/j.intermet.2023.108018}, language = {en} } @misc{FuenningPaulManganellietal., author = {F{\"u}nning, Tabea and Paul, Martin and Manganelli, Costanza Lucia and Wenger, Christian and Mai, Andreas and Steglich, Patrick}, title = {Comparative simulation analysis of photonic ultrasound sensors based on silicon waveguides}, series = {Scientific reports}, volume = {15}, journal = {Scientific reports}, number = {1}, publisher = {Springer Science and Business Media LLC}, address = {[London]}, issn = {2045-2322}, doi = {10.1038/s41598-025-01953-9}, pages = {1 -- 13}, abstract = {Pressure sensors based on photonic integrated circuits (PIC) offer the prospect of outstanding sensitivities, extreme miniaturization and have the potential for highly scalable production using CMOS compatible processing. PIC-based pressure sensors detect the change in optical properties, i.e. the intensity or phase of the optical carrier wave inside miniaturized waveguide structures. The detection of ultrasound is achieved by engineering the waveguide architecture such that a pressure causes a high change in the effective refractive index of the waveguide. A range of PIC-based pressure sensors have been reported, but a comparison of the sensitivity of the different approaches is not straightforward, since different pressure sensitive waveguide architectures as well as photonic layouts and measurement setups impact the performance. Additionally, the used sensitivity unit is not uniform throughout the different studies, further complicating a comparison. In this work, a detailed simulation study is carried out by finite element modeling of different pressure sensitive waveguide architectures for a consistent comparison. We analyze three different sensor architectures: (A) a free standing membrane located within a tiny air gap above the waveguide, (B) a waveguide located on top of a deflectable membrane as well as (C) a waveguide embedded inside a pressure-sensitive polymer cladding. The mechanical response of the structures and the resulting changes in mode propagation, i.e. the change of the effective refractive index, are analyzed. The waveguide sensitivities in RIU/MPa for different waveguide types (strip, slot) and polarization states (TE, TM) are compared. The results reveal inherent limitations of the different waveguide designs and create a basis for the selection of suitable designs for further ultrasound sensor development. Possibilities for enhancing waveguide sensitivity are identified and discussed. Additionally, we have shown that the studied approaches are extensible to SiN waveguides.}, language = {en} } @misc{KalraAlvaradoChavarinNitschetal., author = {Kalra, Amanpreet and Alvarado Chavarin, Carlos and Nitsch, Paul-Gregor and Tschammer, Rudi and Flege, Jan Ingo and Ratzke, Markus and Zoellner, Marvin Hartwig and Schubert, Markus Andreas and Wenger, Christian and Fischer, Inga Anita}, title = {Deposition of CeOₓ/SnOₓ-based thin films via RF magnetron sputtering for resistive gas sensing applications}, series = {Physica B, Condensed matter}, volume = {723}, journal = {Physica B, Condensed matter}, publisher = {Elsevier BV}, address = {Amsterdam}, issn = {0921-4526}, doi = {10.1016/j.physb.2025.418098}, pages = {1 -- 7}, abstract = {Cerium oxide-tin oxide (CeOx/SnOx) thin films with varying Sn content were deposited using RF magnetron sputtering and investigated for hydrogen sensing applications. Structural, compositional, and morphological properties were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDX). Gas sensing measurements showed effective hydrogen detection at room temperature, with the sensitivity strongly influenced by Sn content and oxygen vacancy concentration. Higher Sn concentration enhanced the sensing response, which was correlated with microstructural features obtained from AFM and EDX, as well as with the presence of Ce3+ and Ce4+ oxidation states identified by XPS. This study highlights the potential of CeOx/SnOx thin films for possible back-end-of-line integration and provides proof-of-principle for room-temperature hydrogen sensing.}, language = {en} }