@masterthesis{Ferraioli2023,
  type      = {Bachelor Thesis},
  author    = {Ferraioli, Luigi},
  title     = {Validierung einer Simulationsumgebung f{\"u}r Umfeldsensorik von Schienenfahrzeugen},
  publisher = {FH Aachen},
  address   = {Aachen},
  school      = {Fachhochschule Aachen},
  pages     = {49 Seiten},
  year      = {2023},
  abstract  = {Diese Bachelorarbeit befasst sich mit der digitalen Nachbildung eines Testgel{\"a}ndes sowie eines Schienenfahrzeugs in der Simulationsumgebung Gazebo. Der Schwerpunkt liegt auf der pr{\"a}zisen Abbildung der Umfeldsensorik anhand eines realen Schienenfahrzeuges. Ziel ist die Erzeugung {\"a}quivalenter Messdaten der Simulationsumgebung und des realen Schienenfahrzeuges unter gleichen Einsatzbedingungen. Dazu werden unterschiedliche Verfahren eingesetzt, um die Parameter der einzelnen Sensorik so zu konfigurieren, dass die Messergebnisse mit den Messdaten der realen Sensorik konvergieren. Die Ergebnisse der Messdaten zeigen, dass obwohl die Simulationsumgebung einige physikalische Materialeigenschaften nicht ber{\"u}cksichtigt, eine pr{\"a}zise Abbildung der Sensorik und geometrischen Strukturen des Testgel{\"a}ndes m{\"o}glich ist. Dar{\"u}ber hinaus erm{\"o}glicht die Kombination von Gazebo und ROS2 Integrationstests und die Entwicklung von Softwareanwendungen sowohl in der Simulation als auch auf dem realen Schienenfahrzeug. Eine realit{\"a}tsnahe und reproduzierbare Auswertung der Sensormessdaten der Simulationsumgebung f{\"u}r Schienenfahrzeuge ist somit realisierbar.},
  language  = {de}
}
@inproceedings{PfaffMoshiriReichetal.2017,
  author    = {Pfaff, Raphael and Moshiri, Amir and Reich, Alexander and G{\"a}bel, Markus},
  title     = {Modelling of the effect of sanding on the wheel-rail adhesion area},
  series = {First International Conference on Rail Transportation},
  booktitle = {First International Conference on Rail Transportation},
  pages     = {1 -- 7},
  year      = {2017},
  language  = {en}
}
@masterthesis{Pfaff2007,
  type      = {Bachelor Thesis},
  author    = {Pfaff, Raphael},
  title     = {Automated processing of the ISL Doppler images},
  year      = {2007},
  language  = {en}
}
@misc{Nordmann2022,
  type      = {Master Thesis},
  author    = {Nordmann, Alexander},
  title     = {Prozess{\"u}berwachung beim Werkzeugschleifen von WC-Co Hartmetallschaftfr{\"a}sern},
  publisher = {FH Aachen},
  address   = {Aachen},
  school      = {Fachhochschule Aachen},
  pages     = {xi, 54 Seiten},
  year      = {2022},
  language  = {de}
}
@article{PfaffBabilon2023,
  author    = {Pfaff, Raphael and Babilon, Katharina},
  title     = {Railway Challenge - moderne Auflage der Rainhill Trials?},
  series = {ETR - Eisenbahntechnische Rundschau},
  volume    = {2023},
  journal   = {ETR - Eisenbahntechnische Rundschau},
  number    = {4},
  publisher = {DVV Media Group},
  address   = {Hamburg},
  issn      = {0013-2845},
  pages     = {55 -- 58},
  year      = {2023},
  abstract  = {Die IMechE Railway Challenge wird j{\"a}hrlich in Stapleford, Großbritannien ausgetragen. Im Rahmen der Challenge entwickeln und bauen Studierende eine Lokomotive und vergleichen sich in verschiedenen Disziplinen, darunter eine automatisierte Zielbremsung, optimale Energier{\"u}ckgewinnung beim Bremsen und minimale Ger{\"a}uschemissionen. Neben diesen und weiteren technischen Wettbewerbsdisziplinen treten die Fahrzeuge und die Teams auch in nicht-technischen Disziplinen wie einer Business Case Challenge an.},
  language  = {de}
}
@article{PfaffGidaszewskiSchmidt2020,
  author    = {Pfaff, Raphael and Gidaszewski, Lars and Schmidt, Bernd},
  title     = {Ber{\"u}cksichtigung von No Fault Found im Diagnose- und Instandhaltungssystem von Schienenfahrzeugen},
  series = {ETR - Eisenbahntechnische Rundschau},
  journal   = {ETR - Eisenbahntechnische Rundschau},
  number    = {5},
  publisher = {DVV Media Group},
  address   = {Hamburg},
  issn      = {0013-2845},
  pages     = {56 -- 59},
  year      = {2020},
  abstract  = {Intermittierende und nicht reproduzierbare Fehler, auch als No Fault Found bezeichnet, treten in praktisch allen Bereichen auf und sorgen f{\"u}r hohe Kosten. Diese sind h{\"a}ufig auf unpr{\"a}zise Fehlerbeschreibungen zur{\"u}ckzuf{\"u}hren. Im vorliegenden Beitrag werden Anpassungen der Vorgehensweise bei der Entwicklung und Anpassungen des Diagnosesystems vorgeschlagen.},
  language  = {de}
}
@inproceedings{PfaffBurnham2008,
  author    = {Pfaff, Raphael and Burnham, Keith J.},
  title     = {On abstraction and interpretability: a behavioural perspective},
  series = {19th International Conference on Systems Engineering 2008 : ICSENG '08 : 19 - 21 Aug. 2008, University of Nevada, Las Vegas, Nevada},
  booktitle = {19th International Conference on Systems Engineering 2008 : ICSENG '08 : 19 - 21 Aug. 2008, University of Nevada, Las Vegas, Nevada},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  organization    = {International Conference on Systems Engineering <19, 2008, Las Vegas, Nev.>},
  isbn      = {978-0-7695-3331-5 ; 978-0-7695-2719-2},
  pages     = {89 -- 94},
  year      = {2008},
  language  = {en}
}
@inproceedings{MoshiriKahakPfaffGaebeletal.2017,
  author    = {Moshiri-Kahak, Amir and Pfaff, Raphael and G{\"a}bel, Markus and Reich, Alexander},
  title     = {Modellierung der Adh{\"a}sionsfl{\"a}che im Rad-Schiene-Kontakt unter Einsatz von reibwertverbessernden Mitteln},
  series = {15. Internationale Schienenfahrzeugtagung Rad Schiene 2017, Dresden, M{\"a}rz 2017},
  booktitle = {15. Internationale Schienenfahrzeugtagung Rad Schiene 2017, Dresden, M{\"a}rz 2017},
  pages     = {3 Seiten},
  year      = {2017},
  language  = {de}
}
@inproceedings{PfaffSappler2014,
  author    = {Pfaff, Raphael and Sappler, Magnus},
  title     = {TRANSPACT : die automatische Mittelpufferkupplung f{\"u}r attraktiven G{\"u}terverkehr},
  series = {RAIL-FREIGHT 2014 : Zukunft des Schieneng{\"u}terverkehrs ; Technologie - {\"O}konomie - {\"O}kologie - Verkehrspolitik ; [Tagungsdokumentation des IV. Internationalen Fachsymposiums zum Thema Schieneng{\"u}terverkehr] (Bahntechnik Aktuell ; 48)},
  booktitle = {RAIL-FREIGHT 2014 : Zukunft des Schieneng{\"u}terverkehrs ; Technologie - {\"O}konomie - {\"O}kologie - Verkehrspolitik ; [Tagungsdokumentation des IV. Internationalen Fachsymposiums zum Thema Schieneng{\"u}terverkehr] (Bahntechnik Aktuell ; 48)},
  publisher = {Verl. d. IFV Bahntechnik},
  address   = {Berlin},
  isbn      = {978-3-940727-41-1},
  pages     = {121 -- 128},
  year      = {2014},
  language  = {de}
}
@article{WollertFiedlerStockmann1994,
  author    = {Wollert, J{\"o}rg and Fiedler, J{\"o}rg and Stockmann, T.},
  title     = {Automatisieren mit dem PC : was der Personal Computer kann und wo er passen muss},
  series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  journal   = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  number    = {Nr. 6},
  issn      = {0013-5658},
  pages     = {76 -- 82},
  year      = {1994},
  language  = {de}
}
@article{BernauKnoedlerEmontsetal.2022,
  author    = {Bernau, C. R. and Kn{\"o}dler, Matthias and Emonts, Jessica and J{\"a}pel, Ronald Colin and Buyel, Johannes Felix},
  title     = {The use of predictive models to develop chromatography-based purification processes},
  series = {Frontiers in Bioengineering and Biotechnology},
  journal   = {Frontiers in Bioengineering and Biotechnology},
  number    = {10},
  publisher = {Frontiers Media},
  address   = {Lausanne},
  issn      = {2296-4185 (online-ressource)},
  doi       = {10.3389/fbioe.2022.1009102},
  pages     = {25 Seiten},
  year      = {2022},
  abstract  = {Chromatography is the workhorse of biopharmaceutical downstream processing because it can selectively enrich a target product while removing impurities from complex feed streams. This is achieved by exploiting differences in molecular properties, such as size, charge and hydrophobicity (alone or in different combinations). Accordingly, many parameters must be tested during process development in order to maximize product purity and recovery, including resin and ligand types, conductivity, pH, gradient profiles, and the sequence of separation operations. The number of possible experimental conditions quickly becomes unmanageable. Although the range of suitable conditions can be narrowed based on experience, the time and cost of the work remain high even when using high-throughput laboratory automation. In contrast, chromatography modeling using inexpensive, parallelized computer hardware can provide expert knowledge, predicting conditions that achieve high purity and efficient recovery. The prediction of suitable conditions in silico reduces the number of empirical tests required and provides in-depth process understanding, which is recommended by regulatory authorities. In this article, we discuss the benefits and specific challenges of chromatography modeling. We describe the experimental characterization of chromatography devices and settings prior to modeling, such as the determination of column porosity. We also consider the challenges that must be overcome when models are set up and calibrated, including the cross-validation and verification of data-driven and hybrid (combined data-driven and mechanistic) models. This review will therefore support researchers intending to establish a chromatography modeling workflow in their laboratory.},
  language  = {en}
}
@article{EmontsBuyel2023,
  author    = {Emonts, Jessica and Buyel, Johannes Felix},
  title     = {An overview of descriptors to capture protein properties - Tools and perspectives in the context of QSAR modeling},
  series = {Computational and Structural Biotechnology Journal},
  journal   = {Computational and Structural Biotechnology Journal},
  number    = {21},
  publisher = {Research Network of Computational and Structural Biotechnology},
  address   = {Gotenburg},
  issn      = {2001-0370 (online-ressource)},
  doi       = {10.1016/j.csbj.2023.05.022},
  pages     = {3234 -- 3247},
  year      = {2023},
  abstract  = {Proteins are important ingredients in food and feed, they are the active components of many pharmaceutical products, and they are necessary, in the form of enzymes, for the success of many technical processes. However, production can be challenging, especially when using heterologous host cells such as bacteria to express and assemble recombinant mammalian proteins. The manufacturability of proteins can be hindered by low solubility, a tendency to aggregate, or inefficient purification. Tools such as in silico protein engineering and models that predict separation criteria can overcome these issues but usually require the complex shape and surface properties of proteins to be represented by a small number of quantitative numeric values known as descriptors, as similarly used to capture the features of small molecules. Here, we review the current status of protein descriptors, especially for application in quantitative structure activity relationship (QSAR) models. First, we describe the complexity of proteins and the properties that descriptors must accommodate. Then we introduce descriptors of shape and surface properties that quantify the global and local features of proteins. Finally, we highlight the current limitations of protein descriptors and propose strategies for the derivation of novel protein descriptors that are more informative.},
  language  = {en}
}
@phdthesis{Emonts2013,
  author    = {Emonts, Jessica},
  title     = {Searching for many defective edges in hypergraphs},
  publisher = {Rheinisch-Westf{\"a}lischen Technischen Hochschule Aachen},
  address   = {Aachen},
  pages     = {VIII, 104 Seiten : Ill.},
  year      = {2013},
  language  = {en}
}
@article{KnoedlerRuehlEmontsetal.2019,
  author    = {Kn{\"o}dler, Matthias and R{\"u}hl, Clemens and Emonts, Jessica and Buyel, Johannes Felix},
  title     = {Seasonal weather changes affect the yield and quality of recombinant proteins produced in transgenic tobacco plants in a greenhouse setting},
  series = {Frontiers in Plant Science},
  journal   = {Frontiers in Plant Science},
  number    = {10},
  publisher = {Frontiers Media},
  address   = {Lausanne},
  issn      = {1664-462X (online-ressource)},
  doi       = {10.3389/fpls.2019.01245},
  pages     = {13 Seiten},
  year      = {2019},
  abstract  = {Transgenic plants have the potential to produce recombinant proteins on an agricultural scale, with yields of several tons per year. The cost-effectiveness of transgenic plants increases if simple cultivation facilities such as greenhouses can be used for production. In such a setting, we expressed a novel affinity ligand based on the fluorescent protein DsRed, which we used as a carrier for the linear epitope ELDKWA from the HIV-neutralizing antibody 2F5. The DsRed-2F5-epitope (DFE) fusion protein was produced in 12 consecutive batches of transgenic tobacco (Nicotiana tabacum) plants over the course of 2 years and was purified using a combination of blanching and immobilized metal-ion affinity chromatography (IMAC). The average purity after IMAC was 57 ± 26\% (n = 24) in terms of total soluble protein, but the average yield of pure DFE (12 mg kg-1) showed substantial variation (± 97 mg kg-1, n = 24) which correlated with seasonal changes. Specifically, we found that temperature peaks (>28°C) and intense illuminance (>45 klx h-1) were associated with lower DFE yields after purification, reflecting the loss of the epitope-containing C-terminus in up to 90\% of the product. Whereas the weather factors were of limited use to predict product yields of individual harvests conducted for each batch (spaced by 1 week), the average batch yields were well approximated by simple linear regression models using two independent variables for prediction (illuminance and plant age). Interestingly, accumulation levels determined by fluorescence analysis were not affected by weather conditions but positively correlated with plant age, suggesting that the product was still expressed at high levels, but the extreme conditions affected its stability, albeit still preserving the fluorophore function. The efficient production of intact recombinant proteins in plants may therefore require adequate climate control and shading in greenhouses or even cultivation in fully controlled indoor farms.},
  language  = {en}
}
@article{KaemperBergBegemannetal.1998,
  author    = {K{\"a}mper, Klaus-Peter and Berg, U. and Begemann, M. and Hagemann, B.},
  title     = {Series production and testing of a micro motor. Serienfertigung und Pr{\"u}fung eines Mikromotors},
  series = {Actuator 98 : 6th International Conference on New Actuators ; 17 - 19 June, 1998, Bremen, Germany ; conference proceedings / ed.: Hubert Borgmann ...},
  journal   = {Actuator 98 : 6th International Conference on New Actuators ; 17 - 19 June, 1998, Bremen, Germany ; conference proceedings / ed.: Hubert Borgmann ...},
  publisher = {Messe Bremen},
  address   = {Bremen},
  isbn      = {3-933339-00-6},
  pages     = {552 -- 555},
  year      = {1998},
  language  = {en}
}
@article{WingensMayPfaff2019,
  author    = {Wingens, Niklas and May, J{\"o}rg and Pfaff, Raphael},
  title     = {Betrieblich-technische Innovationsans{\"a}tze zur Bremsprobe nach einer Prozess{\"a}nderung},
  series = {ETR - Eisenbahntechnische Rundschau},
  journal   = {ETR - Eisenbahntechnische Rundschau},
  number    = {5},
  publisher = {DVV Media Group},
  address   = {Hamburg},
  issn      = {0013-2845},
  pages     = {5 Seiten},
  year      = {2019},
  language  = {de}
}
@incollection{FranzenSteckenPfaffetal.2019,
  author    = {Franzen, Julian and Stecken, Jannis and Pfaff, Raphael and Kuhlenk{\"o}tter, Bernd},
  title     = {Using the Digital Shadow for a Prescriptive Optimization of Maintenance and Operation : The Locomotive in the Context of the Cyber-Physical System},
  series = {Advances in Production, Logistics and Traffic},
  booktitle = {Advances in Production, Logistics and Traffic},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-030-13535-5},
  doi       = {10.1007/978-3-030-13535-5_19},
  pages     = {265 -- 276},
  year      = {2019},
  abstract  = {In competition with other modes of transport, rail freight transport is looking for solutions to become more attractive. Short-term success can be achieved through the data-driven optimization of operations and maintenance as well as the application of novel strategies such as prescriptive maintenance. After introducing the concept of prescriptive maintenance, this paper aims to prove that vehicle-focused applications of this approach indeed have the potential to increase attractiveness. However, even greater advantages can be activated if data from the horizontal network of the vehicle is available. Drawing on the state of the art in research and technology in the field of cyber-physical systems (CPS) as well as digital twins and shadows, our work serves to design a system of systems for the horizontal interconnection of a rail vehicle and to conceptualize a draft for a digital twin of a locomotive.},
  language  = {en}
}
@article{PfaffSchmidtPinders2015,
  author    = {Pfaff, Raphael and Schmidt, Bernd and Pinders, Udo},
  title     = {Energieeffizienz steigern durch Rekuperationseinrichtungen},
  series = {Deine Bahn},
  journal   = {Deine Bahn},
  number    = {5},
  publisher = {Eisenbahn-Fachverlag},
  address   = {Mainz},
  issn      = {0172-4479},
  pages     = {50 -- 53},
  year      = {2015},
  language  = {de}
}
@article{PfaffEnning2017,
  author    = {Pfaff, Raphael and Enning, Manfred},
  title     = {Die nachhaltige Alternative zum autonomen Lastwagen},
  series = {Deine Bahn},
  journal   = {Deine Bahn},
  number    = {10},
  pages     = {22 -- 26},
  year      = {2017},
  language  = {de}
}
@techreport{PfaffGeorgeSeileretal.2005,
  author    = {Pfaff, Raphael and George, Alfred and Seiler, Friedrich and Srulijes, Julio},
  title     = {Dopplerbild-Verfahren : Entwicklung einer neuen Auswertemethode. (Bericht / ISL / AGARD ; R 124/2005)},
  publisher = {ISL},
  address   = {Saint Louis, France},
  pages     = {X, 26 S. : Ill., graph. Darst.},
  year      = {2005},
  language  = {de}
}
@phdthesis{Pfaff2013,
  author    = {Pfaff, Raphael},
  title     = {Evaluation and extension of the potential for application of the behavioural framework to practical engineering problems},
  pages     = {XVI, 231 S.},
  year      = {2013},
  language  = {en}
}
@article{Pfaff2023,
  author    = {Pfaff, Raphael},
  title     = {Braking distance prediction for vehicle consist in low-speed on-sight operation: a Monte Carlo approach},
  series = {Railway Engineering Science},
  volume    = {31},
  journal   = {Railway Engineering Science},
  number    = {2},
  publisher = {SpringerOpen},
  issn      = {2662-4753 (eISSN)},
  doi       = {10.1007/s40534-023-00303-7},
  pages     = {135 -- 144},
  year      = {2023},
  abstract  = {The first and last mile of a railway journey, in both freight and transit applications, constitutes a high effort and is either non-productive (e.g. in the case of depot operations) or highly inefficient (e.g. in industrial railways). These parts are typically managed on-sight, i.e. with no signalling and train protection systems ensuring the freedom of movement. This is possible due to the rather short braking distances of individual vehicles and shunting consists. The present article analyses the braking behaviour of such shunting units. For this purpose, a dedicated model is developed. It is calibrated on published results of brake tests and validated against a high-definition model for low-speed applications. Based on this model, multiple simulations are executed to obtain a Monte Carlo simulation of the resulting braking distances. Based on the distribution properties and established safety levels, the risk of exceeding certain braking distances is evaluated and maximum braking distances are derived. Together with certain parameters of the system, these can serve in the design and safety assessment of driver assistance systems and automation of these processes.},
  language  = {en}
}
@inproceedings{WilbringEnningPfaffetal.2019,
  author    = {Wilbring, Daniela and Enning, Manfred and Pfaff, Raphael and Schmidt, Bernd},
  title     = {Neue Perspektiven f{\"u}r die Bahn in der Produktions- und Distributionslogistik durch Prozessautomation},
  series = {IRSA 2019: Tagungsband, Proceedings},
  booktitle = {IRSA 2019: Tagungsband, Proceedings},
  editor    = {de Doncker, Rik W. and Nießen, Nils and Schindler, Christian},
  publisher = {RWTH Aachen},
  address   = {Aachen},
  doi       = {10.18154/RWTH-2020-00014},
  pages     = {128 -- 142},
  year      = {2019},
  abstract  = {Deutschland braucht mehr Eisenbahn um CO2-Emissionen aus dem Verkehr zu reduzieren. Sie muss zum R{\"u}ckgrat aktueller Logistikprozesse, z.B. bei Kaufmannsg{\"u}tern und E-Commerce, werden. Dies geht nicht ohne neuartige betriebliche Konzepte und eine Transformation des G{\"u}terwagens von einem „dummen St{\"u}ck Stahl" zu einem modernen Werkzeug der Logistik. Als „G{\"u}terwagen 4.0" wird ein kommunikativer und kooperativer G{\"u}terwagen verstanden, der die Voraussetzung zur Automatisierung aller Prozesse der Zugvorbereitung bereitstellt, sich aber ansonsten vollkommen kompatibel mit heutigen Betriebsverfahren im Hauptlauf pr{\"a}sentiert. Durch Kommunikation zwischen G{\"u}terwagen und umgebenden intelligenten Systemen im Sinne eines „Internet der Dinge" gelingt damit unter Anderem die Realisierung hoch effizienter Gleisanschlussverkehre, die der G{\"u}terbahn neue M{\"a}rkte abseits der klassisch bahn-affinen Verkehre erschließen und letztlich den Wandel zu einer nachhaltigen G{\"u}termobilit{\"a}t f{\"o}rdern.},
  language  = {de}
}
@article{WilbringEnningPfaffetal.2020,
  author    = {Wilbring, Daniela and Enning, Manfred and Pfaff, Raphael and Schmidt, Bernd},
  title     = {Neue Perspektiven f{\"u}r die Bahn in der Produktions- und Distributionslogistik durch Prozessautomation},
  series = {ETR - Eisenbahntechnische Rundschau},
  volume    = {69},
  journal   = {ETR - Eisenbahntechnische Rundschau},
  number    = {3},
  publisher = {DVV Mediagroup},
  address   = {Hamburg},
  issn      = {0013-2845},
  pages     = {15 -- 19},
  year      = {2020},
  language  = {de}
}
@inproceedings{PfaffShahidiEnning2017,
  author    = {Pfaff, Raphael and Shahidi, Parham and Enning, Manfred},
  title     = {Connected freight rail rolling stock: a modular approach integrating sensors, actors and cyber physical systems for operational advantages and condition based maintenance},
  series = {Asia-Pacific Conference of the Prognostics and Health Management Society},
  booktitle = {Asia-Pacific Conference of the Prognostics and Health Management Society},
  pages     = {1 -- 7},
  year      = {2017},
  language  = {en}
}
@inproceedings{SeilerGeorgePfaffetal.2005,
  author    = {Seiler, Friedrich and George, Alfred and Pfaff, Raphael and Srulijes, Julio},
  title     = {Stand der Entwicklung des ISL Dopplerbildverfahrens},
  series = {GALA : 13. Fachtagung Lasermethoden in der Str{\"o}mungsmesstechnik : 6. - 8. September 2005, Cottbus},
  booktitle = {GALA : 13. Fachtagung Lasermethoden in der Str{\"o}mungsmesstechnik : 6. - 8. September 2005, Cottbus},
  publisher = {Techn. Univ.},
  address   = {Cottbus},
  organization    = {Fachtagung Lasermethoden in der Str{\"o}mungsmesstechnik <13, 2005, Cottbus>},
  isbn      = {3-9805613-2-1},
  pages     = {24-1 -- 24-8},
  year      = {2005},
  language  = {de}
}
@inproceedings{PfaffPichlerGeorgeetal.2007,
  author    = {Pfaff, Raphael and Pichler, Alexander and George, Alfred and Seiler, Friedrich},
  title     = {Model based image processing for flow visualisation : 16th International Conference on Systems Science, Wroclaw, Poland, September 04 - 06, 2007},
  series = {PU / Institut Franco-Allemand de Recherches de Saint-Louis ; 2007, 620},
  booktitle = {PU / Institut Franco-Allemand de Recherches de Saint-Louis ; 2007, 620},
  publisher = {ISL},
  address   = {Saint Louis, France},
  organization    = {International Conference on Systems Science <16, 2007, Wroclaw>},
  pages     = {1 -- 10},
  year      = {2007},
  language  = {en}
}
@inproceedings{Pfaff2017,
  author    = {Pfaff, Raphael},
  title     = {Analysis of Big Data Streams to obtain Braking Reliability Information for Train Protection systems},
  series = {Asia-Pacific Conference of the Prognostics and Health Management Society},
  booktitle = {Asia-Pacific Conference of the Prognostics and Health Management Society},
  pages     = {1 -- 7},
  year      = {2017},
  language  = {en}
}
@inproceedings{GaoBabilonPfaffetal.2018,
  author    = {Gao, H. and Babilon, Katharina and Pfaff, Raphael and Gan, F. and Reich, A.},
  title     = {Model of wheel-rail contact for sanding and adhesion enhancement},
  series = {Proceedings of the 11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems, CM 2018},
  booktitle = {Proceedings of the 11th International Conference on Contact Mechanics and Wear of Rail/wheel Systems, CM 2018},
  isbn      = {978-946186963-0},
  pages     = {314 -- 321},
  year      = {2018},
  language  = {en}
}
@inproceedings{SeilerPichlerPfaffetal.2008,
  author    = {Seiler, Friedrich and Pichler, Alexander and Pfaff, Raphael and George, Alfred and Srulijes, Julio},
  title     = {Improved Doppler picture velocimetry and new automated processing},
  series = {14th International Symposium on Applications of Laser Techniques to Fluid Mechanics : Lisbon, Portugal, 7 - 10 July 2008},
  booktitle = {14th International Symposium on Applications of Laser Techniques to Fluid Mechanics : Lisbon, Portugal, 7 - 10 July 2008},
  organization    = {International Symposium on Applications of Laser Techniques to Fluid Mechanics <14, 2008, Lisboa>},
  pages     = {1 -- 12},
  year      = {2008},
  language  = {en}
}
@article{EnningPfaff2017,
  author    = {Enning, Manfred and Pfaff, Raphael},
  title     = {G{\"u}terwagen 4.0 - Der G{\"u}terwagen f{\"u}r das Internet der Dinge. Teil 1: Gesamtsystembetrachtung und grundlegendes Konzept},
  series = {ETR - Eisenbahntechnische Rundschau},
  volume    = {66},
  journal   = {ETR - Eisenbahntechnische Rundschau},
  number    = {1/2},
  publisher = {DVV Media Group},
  address   = {Hamburg},
  issn      = {0013-2845},
  pages     = {12 -- 16},
  year      = {2017},
  language  = {de}
}
@article{PfaffEnning2017,
  author    = {Pfaff, Raphael and Enning, Manfred},
  title     = {G{\"u}terwagen 4.0 - Der G{\"u}terwagen f{\"u}r das Internet der Dinge. Teil 2: Ausgew{\"a}hlte technische Aspekte und Prozesse},
  series = {ETR - Eisenbahntechnische Rundschau},
  volume    = {66},
  journal   = {ETR - Eisenbahntechnische Rundschau},
  number    = {5},
  publisher = {DVV Media Group},
  address   = {Hamburg},
  issn      = {0013-2845},
  pages     = {74 -- 77},
  year      = {2017},
  language  = {de}
}
@article{SeilerPichlerPfaffetal.2009,
  author    = {Seiler, Friedrich and Pichler, Alexander and Pfaff, Raphael and Srulijes, Julio},
  title     = {Novel processing tools for automated doppler picture velocimetry (DPV) evaluation},
  series = {Journal of visualization},
  volume    = {Vol. 12},
  journal   = {Journal of visualization},
  number    = {Iss. 4},
  issn      = {1343-8875},
  pages     = {323 -- 337},
  year      = {2009},
  language  = {en}
}
@inproceedings{Pfaff2018,
  author    = {Pfaff, Raphael},
  title     = {Railway Challenge 2018 - Ein Wettbewerb f{\"u}r Parkbahn-Lokomotiven},
  series = {Deine Bahn},
  booktitle = {Deine Bahn},
  issn      = {0948-7263},
  pages     = {22 -- 24},
  year      = {2018},
  language  = {de}
}
@article{FranzenPindersPfaffetal.2018,
  author    = {Franzen, Julius and Pinders, Erik and Pfaff, Raphael and Enning, Manfred},
  title     = {RailCrowd's virtual fleets: Make most of your asset data},
  series = {Deine Bahn},
  journal   = {Deine Bahn},
  number    = {9},
  publisher = {Bahn-Fachverlag},
  address   = {Berlin},
  issn      = {0948-7263},
  pages     = {11 -- 13},
  year      = {2018},
  abstract  = {For smaller railway operators or those with a diverse fleet, it can be difficult to collect sufficient data to improve maintenance programs. At the same time, new rules such as entity in charge of maintenance - ECM - regulations impose an additional workload by requiring a dedicated maintenance management system and specific reports. The RailCrowd platform sets out to facilitate compliance with ECM and similar regulations while at the same time pooling anonymised fleet data across operators to form virtual fleets, providing greater data insights.},
  language  = {en}
}
@article{PfaffSchmidt2016,
  author    = {Pfaff, Raphael and Schmidt, Bernd},
  title     = {Daten in der Cloud - und dann?},
  series = {Deine Bahn},
  journal   = {Deine Bahn},
  number    = {6},
  publisher = {Bahn-Fachverlag},
  address   = {Berlin},
  issn      = {0948-7263},
  pages     = {50 -- 55},
  year      = {2016},
  abstract  = {Schienenverkehrssysteme stehen in zunehmendem Wettbewerb, sowohl untereinander als auch mit anderen Verkehrstr{\"a}gern. Als wichtiger Aspekt zur Steigerung der Kosteneffizienz wird die Digitalisierung des Betriebs und der Fahrzeuge betrachtet. {\"U}ber eine Prognose der Ausfallwahrscheinlichkeit bzw. Restlebensdauer von Subsystemen k{\"o}nnen mittels Digitalisierung die Instandhaltungskosten gesenkt werden. Die geringen Fehlerraten im System Bahn machen die Nutzung besonderer Simulationstechniken notwendig. In diesem Beitrag wird gezeigt, wie sich die Subsystemverf{\"u}gbarkeit aus den beobachteten Fehlerraten der Teilfunktionen vorhersagen l{\"a}sst.},
  language  = {de}
}
@article{Pfaff2017,
  author    = {Pfaff, Raphael},
  title     = {Einsatz von offenen Onlinekursen in der Eisenbahnlehre},
  series = {Deine Bahn},
  journal   = {Deine Bahn},
  number    = {1},
  publisher = {Bahn-Fachverlag},
  address   = {Berlin},
  issn      = {0948-7263},
  pages     = {12 -- 16},
  year      = {2017},
  abstract  = {Eigene positive Erfahrungen mit Onlinekursen sowie die geringen Studierendenzahlen in der Pr{\"a}senzlehre gaben den Anstoß zu einem Experiment mit einem offenen Onlinekurs auf der Plattform Udemy. Die Erfahrungen sowohl bei der Erstellung und als auch im Lehrbetrieb waren positiv und f{\"u}hrten zu einer neuen Besch{\"a}ftigung mit Inhalten und Lernenden, getrieben durch die Anforderungen der Lernplattform.},
  language  = {de}
}
@inproceedings{PfaffLarkowskiBurnham2011,
  author    = {Pfaff, Raphael and Larkowski, Tomasz and Burnham, Keith J.},
  title     = {An application of adaptive control in the behavioural framework},
  series = {21st International Conference on Systems Engineering (ICSEng) : 16 - 18 Aug. 2011, Las Vegas, Nevada ; proceedings},
  booktitle = {21st International Conference on Systems Engineering (ICSEng) : 16 - 18 Aug. 2011, Las Vegas, Nevada ; proceedings},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  organization    = {International Conference on Systems Engineering <21, 2011, Las Vegas>},
  isbn      = {978-1-4577-1078-0 ; 978-0-7695-4495-3},
  pages     = {49 -- 54},
  year      = {2011},
  language  = {en}
}
@inproceedings{PfaffLarkowskiBurnham2010,
  author    = {Pfaff, Raphael and Larkowski, Tomasz and Burnham, Keith J.},
  title     = {An approach to adaptive control in the behavioural framework},
  series = {UKACC International Conference on Control 2010 (CONTROL 2010) : Coventry, United Kingdom, 7 - 10 September 2010 ; Vol. 2. (IET seminar digest ; 2010/004)},
  booktitle = {UKACC International Conference on Control 2010 (CONTROL 2010) : Coventry, United Kingdom, 7 - 10 September 2010 ; Vol. 2. (IET seminar digest ; 2010/004)},
  publisher = {Curran},
  address   = {Red Hook, NY},
  organization    = {United Kingdom Automatic Control Council},
  isbn      = {978-1-62748-119-9},
  pages     = {833 -- 838},
  year      = {2010},
  language  = {en}
}
@article{Pfaff2017,
  author    = {Pfaff, Raphael},
  title     = {Apps f{\"u}r den G{\"u}terwagen? Wie der G{\"u}terwagen 4.0 die effiziente Integration der G{\"u}terbahn in ERTMS erm{\"o}glicht},
  series = {Ingenieurspiegel},
  journal   = {Ingenieurspiegel},
  number    = {2},
  pages     = {1 -- 2},
  year      = {2017},
  language  = {de}
}
@masterthesis{Schnitzler2022,
  type      = {Bachelor Thesis},
  author    = {Schnitzler, Nora},
  title     = {Identifikation und Bewertung geeigneter Mikrostrukturierungen zum Schutz von Biohybridbeschichtungen von Zahnimplantaten vor Abrasion beim Z{\"a}hneputzen},
  publisher = {FH Aachen},
  address   = {Aachen},
  school      = {Fachhochschule Aachen},
  pages     = {67 S.},
  year      = {2022},
  abstract  = {Die Oberfl{\"a}chen dentaler Implantate sind definiert durch eine raue Oberfl{\"a}che, um die Integration in den menschlichen Knochen zu optimieren. Entz{\"u}ndungen des umgebenden Zahnfleisches z{\"a}hlen dabei zu den h{\"a}ufigsten Komplikationen nach einer Implantation. Diese Entz{\"u}ndungen entstehen haupts{\"a}chlich durch bakterielle Infektionen des Weichgewebes an der Implantations-Stelle. Die raue Oberfl{\"a}che tr{\"a}gt jedoch zu einer solchen Infektion bei. Da der Implantat-Kopf zum Teil aus dem Knochen herausragt, erfolgt beispielsweise beim Z{\"a}hneputzen eine Freilegung der Implantat-Oberfl{\"a}che. Die durch die Rauheit vergr{\"o}ßerte Oberfl{\"a}che bietet dabei ideale Voraussetzungen f{\"u}r eine Bakterienansiedlung. In der aktuellen Forschung steht die Entwicklung einer Oberfl{\"a}che im Vordergrund, die eine antibakterielle Funktionalisierung erzeugt. Diese verhindert die Bakterienansiedlung und wirkt einer Entz{\"u}ndung entgegen. Um die Beschichtung vor Verschleiß zu sch{\"u}tzen und ihre Lebensdauer der antibakteriellen Wirkung zu erh{\"o}hen, ist es m{\"o}glich die Oberfl{\"a}che mit einer Mikrostruktur zu versehen. Das Ziel der vorliegenden Arbeit ist die Identifikation geeigneter Mikrostrukturierungen, die der antibakteriellen Beschichtung einen optimalen Schutz vor Verschleiß bieten. Am Beispiel von Titan-Zahnimplantaten wird der Schutz der aufgetragenen Biohybridbeschichtung gegen abrasiven Verschleiß untersucht. Im Vorfeld wird eine Analyse der fertigungstechnischen M{\"o}glichkeiten mit Blick auf dentale Implantate und Mikrostrukturen durchgef{\"u}hrt, um das ein passendes Verfahren zu identifizieren. Die Analogiebauteile als Probenk{\"o}rper werden, mithilfe des zuvor ausgew{\"a}hlten Verfahrens, mit verschiedenen Mikrostrukturen versehen. Im Rahmen einer Versuchsdurchf{\"u}hrung, die die mechanische Belastung bei einem Zahnputzdurchgang imitiert, werden die verschiedenen Mikrostrukturen auf ihre Eignung f{\"u}r diese Anwendung {\"u}berpr{\"u}ft. Ein Vorversuch dient zur Identifizierung eines geeigneten Ankerpeptids, welches den bindenden Bestandteil der Biohybridbeschichtung darstellt. Aus drei zuvor ausgew{\"a}hlten Ankerpeptiden wird das mit der besten Adh{\"a}sionsf{\"a}higkeit herausgestellt. Im finalen Versuchsdurchlauf wird das Ankerpeptid auf die Oberfl{\"a}chen, die mit den Mikrostrukturen versehen sind, aufgetragen. Dabei ist das Ziel eine Mikrostruktur herauszustellen, die den h{\"o}chstm{\"o}glichen Schutz bietet. Durch eine Fluoreszenzpr{\"u}fung mithilfe eines Flourescence Plate Readers wird jede Kombination nach den Belastungsversuchen auf den Restanteil der Beschichtung {\"u}berpr{\"u}ft. Das Ergebnis stellt eine Mikrostruktur dar, die den bestm{\"o}glichen Schutz bietet. Dies ist erkennbar durch den h{\"o}chsten Anteil an Restbeschichtung. Eine Strukturierung mit sogenannten Micro-Grooves in Kombination mit dem MacHis-Ankerpeptid erzielte in der Analyse der Belastungssimulationen die besten Ergebnisse bez{\"u}glich des Schutzes der Beschichtung. Durch die Versuche best{\"a}tigte sich eine weitere Annahme. Die Strukturierung der Oberfl{\"a}che erzielt einen deutlich h{\"o}heren Schutz im Vergleich zu einer unstrukturierten Oberfl{\"a}che. Zudem hat sich herausgestellt, dass eine Beschichtung mit dem sogenannten PEO-Verfahren eine deutlich gr{\"o}ßere Adh{\"a}sion der Biohybridbeschichtung erzielt. Dies wird jedoch Thema weiterf{\"u}hrender Forschungen sein und kein Bestandteil der vorliegenden Arbeit.},
  language  = {de}
}
@masterthesis{Vu2022,
  type      = {Bachelor Thesis},
  author    = {Vu, Tuan Dat},
  title     = {Objekterkennung und Schienenerkennung in der Schienenfahrzeugtechnik},
  publisher = {FH Aachen},
  address   = {Aachen},
  school      = {Fachhochschule Aachen},
  pages     = {72 Seiten},
  year      = {2022},
  language  = {de}
}
@article{Pfaff2015,
  author    = {Pfaff, Raphael},
  title     = {Praxisnahe Ausbildung im Fach Schienenfahrzeugtechnik},
  series = {Deine Bahn},
  journal   = {Deine Bahn},
  number    = {8},
  publisher = {Eisenbahn-Fachverlag},
  address   = {Mainz},
  issn      = {0172-4479},
  pages     = {52 -- 55},
  year      = {2015},
  language  = {de}
}
@article{PfaffBurnham2009,
  author    = {Pfaff, Raphael and Burnham, Keith J.},
  title     = {On abstraction and interpretability: a behavioural perspective},
  series = {Systems Science},
  volume    = {Vol. 35},
  journal   = {Systems Science},
  number    = {Iss. 2},
  issn      = {0137-1223},
  pages     = {19 -- 26},
  year      = {2009},
  language  = {en}
}
@masterthesis{Keller2022,
  type      = {Bachelor Thesis},
  author    = {Keller, Simon Mark},
  title     = {Risikoanalyse einer bordautonomen Schienenfahrzeugortung mittels GNSS},
  publisher = {FH Aachen},
  address   = {Aachen},
  school      = {Fachhochschule Aachen},
  pages     = {57 Seiten},
  year      = {2022},
  abstract  = {Bei Schienenfahrzeugen, die mit dem Zugsicherungssystem ETCS betrieben sind, wird die Odometrie durch eine diskrete Ortung mittels physischen Balisen zur{\"u}ckgesetzt. Diese Arbeit befasst sich mit der Innovation von virtuellen Balisen. Virtuelle Balisen, k{\"o}nnen eingesetzt werden, um physische, im Gleisbett montierte Balisen zu ersetzen. Durch den Einsatz von virtuellen Balisen soll der Infrastrukturausbau von ETCS vorangetrieben werden, indem sie als virtuelle Komponente auf Schienenfahrzeugen eingesetzt werden. Im Rahmen dieser Arbeit wird die Fragestellung beantwortet, ob eine bordautonome Zugortung mittels virtuellen Balisen in einem ausgew{\"a}hlten Szenario mit einem akzeptablen Risiko verbunden ist? Das Szenario besteht aus einem Schienenfahrzeug, welches mit dem Zugsicherungssystem ETCS Level 2 auf einer eingleisigen Nebenstrecke betreiben wird. Hierzu werden zun{\"a}chst die Grundlagen von ETCS und der satellitenbasierten Ortung erl{\"a}utert. Des Weiteren werden die Grundlagen des CSM Prozesses und der expliziten Risikoabsch{\"a}tzung eingef{\"u}hrt. Aufbauend auf diesen Grundlagen wird der CSM Prozess angewandt und dabei eine Systemdefinition mit den Schnittstellen des Systems zur Umwelt erstellt. Mit der Hazop-Methode werden die Gef{\"a}hrdungen der Schnittstellen erfasst und beurteilt. Die sicherheitsrelevanten Gef{\"a}hrdungen werden in einer FMEA bewertet. In der folgenden Diskussion werden sicherheitsrelevante Gef{\"a}hrdungen nochmals betrachtet. Das Ergebnis der Arbeit ist, dass im ausgew{\"a}hlten Szenario, unter der Verwendung der CSM-Prozesse und der industriell anerkannten Methoden Hazop und FMEA, die Integration der Board-autonomen-Ortung mit einem akzeptablen Risiko verbunden ist.},
  language  = {de}
}
@article{EnningPfaff2016,
  author    = {Enning, Manfred and Pfaff, Raphael},
  title     = {Digitalisierung bringt mehr G{\"u}ter auf die Schiene},
  series = {Sonderprojekte ATM/MTZ},
  volume    = {21},
  journal   = {Sonderprojekte ATM/MTZ},
  number    = {6 (suppl.)},
  publisher = {Springer Fachmedien},
  address   = {Wiesbaden},
  issn      = {2509-4610},
  doi       = {10.1007/s41491-016-0570-7},
  pages     = {34 -- 37},
  year      = {2016},
  language  = {de}
}
@inproceedings{PfaffVinsonneauBurnham2006,
  author    = {Pfaff, Raphael and Vinsonneau, B. and Burnham, K. J.},
  title     = {Multiple models for nonlinear systems},
  series = {Proceedings / Eigteenth International Conference on Systems Engineering : ICSE 2006 : 5 - 7 September 2006 ; [held at Coventry University, UK]},
  booktitle = {Proceedings / Eigteenth International Conference on Systems Engineering : ICSE 2006 : 5 - 7 September 2006 ; [held at Coventry University, UK]},
  organization    = {International Conference on Systems Engineering <18, 2006, Coventry>},
  isbn      = {1-84600-013-0},
  pages     = {347 -- 352},
  year      = {2006},
  language  = {en}
}
@article{EnningPfaff2017,
  author    = {Enning, Manfred and Pfaff, Raphael},
  title     = {G{\"u}terwagen 4.0 - Mehr als nur technischer Fortschritt},
  series = {Privatbahn-Magazin},
  journal   = {Privatbahn-Magazin},
  number    = {2},
  publisher = {Bahn Media},
  address   = {Suhlendorf},
  issn      = {1865-0163},
  pages     = {21 -- 25},
  year      = {2017},
  abstract  = {Lokomotiven sind dank modernster Konzepte der Antriebstechnik heute energiesparend und umweltfreundlich. Eine Ausr{\"u}stung mit Telematik und Assistenzfunktionen ist Standard. Auf der Strecke zeigt sich moderne Technik in Form elektronischer Stellwerke und Zugsicherungssysteme und in Rangier- und Abstellanlagen als EOW-Technik. Am G{\"u}terwagen hingegen ist der technische Fortschritt komplett vorbeigegangen. Auch beim modernsten Wagen (Abb. 1) ist die einzige „Automatik"-Funktion die zentral {\"u}ber die Hauptluftleitung (HL) versorgte und bet{\"a}tigte Luftbremse.},
  language  = {de}
}
@article{EichlerBalcBremenetal.2024,
  author    = {Eichler, Fabian and Balc, Nicolae and Bremen, Sebastian and Schleser, Markus and Schwarz, Alexander},
  title     = {Research on reducing residual stresses of SLM parts made for downstream welding process},
  series = {Acta Technica Napocensis},
  volume    = {67},
  journal   = {Acta Technica Napocensis},
  number    = {1s},
  publisher = {Technical University of Cluj-Napoca},
  address   = {Cluj-Napoca},
  issn      = {1221-5872},
  pages     = {69 -- 78},
  year      = {2024},
  abstract  = {In the face of the current trend towards larger and more complex production tasks in the SLM process and the current limitations in terms of maximum build space, the welding of SLM components to each other or to conventionally manufactured parts is becoming increasingly relevant. The fusion welding of SLM components made of 316L has so far been rarely investigated and if so, then for highly specialised laser welding processes. When welding with industrial gas welding processes such as MIG/MAG or TIG welding, distortions occur which are associated with the resulting residual stresses in the components. This paper investigates process-side influencing factors to avoid resulting residual stresses in SLM components made of 316L. The aim is to develop a strategy to build up SLM components as stress-free as possible in order to join them as profitably as possible with a downstream welding process. For this purpose, influencing parameters such as laser power, scan speed, but also scan vector length and different scan patterns are investigated with regard to their influence on residual stresses.},
  language  = {en}
}
@article{AbbasBalcBremenetal.2024,
  author    = {Abbas, Karim and Balc, Nicolae and Bremen, Sebastian and Hedwig, Lukas},
  title     = {Polyetheretherketone (PEEK) in rapid tooling: advancements and applications for fused filament fabrication of rubber molds},
  series = {Acta Technica Napocensis},
  volume    = {67},
  journal   = {Acta Technica Napocensis},
  number    = {1s},
  publisher = {Technical University of Cluj-Napoca},
  address   = {Cluj-Napoca},
  issn      = {1221-5872},
  pages     = {13 -- 22},
  year      = {2024},
  abstract  = {Establishing high-performance polymers in additive manufacturing opens up new industrial applications. Polyetheretherketone (PEEK) was initially used in aerospace but is now widely applied in automotive, electronics, and medical industries. This study focuses on developing applications using PEEK and Fused Filament Fabrication for cost-efficient vulcanization injection mold production. A proof of concept confirms PEEK's suitability for AM mold making, withstanding vulcanization conditions. Printing PEEK above its glass transition temperature of 145 °C is preferable due to its narrow process window. A new process strategy at room temperature is discussed, with micrographs showing improved inter-layer bonding at 410°C nozzle temperature and 0.1 mm layer thickness. Minimizing the layer thickness from 0.15 mm to 0.1 mm improves tensile strength by 16\%.},
  language  = {en}
}