TY - GEN A1 - Doll, Konrad A1 - Köhler, Sebastian A1 - Goldhammer, Michael A1 - Brunsmann, Ulrich T1 - Pedestrian Movement Modelling and Trajectory Prediction at Urban Intersections T2 - International IEEE Conference on Intelligent Transportation Systems (ITSC 2015) N2 - Vortrag KW - Fahrerassistenzsystem KW - Fußgänger Y1 - 2015 CY - Las Palmas de Gran Canaria, Spain ER - TY - JOUR A1 - Kröhn, Michael A1 - Reuter, Norbert A1 - Hahnle, Michael A1 - Prochus, Tobias A1 - Doll, Konrad T1 - Gestengesteuerte Prozessanalyse JF - atp edition - Automatisierungstechnische Praxis KW - Prozessanalyse Y1 - 2016 VL - 58 IS - 12 SP - 26 EP - 33 ER - TY - CHAP A1 - Hubert, Andreas A1 - Zernetsch, Stefan A1 - Doll, Konrad A1 - Sick, Bernhard T1 - Cyclists starting behavior at intersections T2 - 2017 IEEE Intelligent Vehicles Symposium (IV) KW - Fahrerassistenzsystem KW - Radfahrer Y1 - 2017 U6 - https://doi.org/10.1109/IVS.2017.7995856 SP - 1071 EP - 1077 PB - IEEE CY - Los Angeles, CA, USA ER - TY - CHAP A1 - Eilbrecht, Jan A1 - Bieshaar, Maarten A1 - Zernetsch, Stefan A1 - Doll, Konrad A1 - Sick, Bernhard A1 - Stursberg, Olaf T1 - Model-predictive planning for autonomous vehicles anticipating intentions of vulnerable road users by artificial neural networks T2 - 2017 IEEE Symposium Series on Computational Intelligence (SSCI) KW - Fahrerassistenzsystem KW - Fußgänger KW - Radfahrer KW - Autonomes Fahrzeug Y1 - 2017 U6 - https://doi.org/10.1109/SSCI.2017.8285249 SP - 1 EP - 8 PB - IEEE CY - Honolulu, HI, USA ER - TY - CHAP A1 - Bieshaar, Maarten A1 - Zernetsch, Stefan A1 - Depping, Malte A1 - Sick, Bernhard A1 - Doll, Konrad T1 - Cooperative Starting Intention Detection of Cyclists based on Smart Devices and Infrastructure T2 - 2017 IEEE 20th International Conference on Intelligent Transportation Systems (ITSC) KW - Fahrerassistenzsystem KW - Radfahrer Y1 - 2017 U6 - https://doi.org/10.1109/ITSC.2017.8317691 SP - 1 EP - 8 PB - IEEE CY - Yokohama, Japan ER - TY - CHAP A1 - Bieshaar, Maarten A1 - Reitberger, Günther A1 - Kreß, Viktor A1 - Zernetsch, Stefan A1 - Doll, Konrad A1 - Fuchs, Erich A1 - Sick, Bernhard T1 - Highly Automated Learning for Improved Active Safety of Vulnerable Road Users T2 - ACM Chapters Computer Science in Cars Symposium (CSCS-17) KW - Fahrerassistenzsystem Y1 - 2017 VL - 2017 CY - München ER - TY - CHAP A1 - Krause, Dennis A1 - Stahl-Offergeld, Markus A1 - Sand, Markus A1 - Hohe, Hans-Peter A1 - Kovacs, Günter T1 - CMOS Integrated Field Coils for Self-Calibration of 3D Hall-Sensors T2 - Sensors and Measuring Systems, 19th ITG/GMA-Symposium, 26-27 June 2018 N2 - An integrated arrangement of field coils for on-chip self-calibration is presented. Routine tests for 3D Hall sensors are very complex and need special test hardware to generate a well-defined three-dimensional magnetic field. In combination with a high voltage current source, the integrated arrangement allows the generation of local magnetic fields up to 2 mT. In spite of process variations, the error of each coil's magnetic flux density is less than 1%. Magnetic tests can be done on-chip without need for additional external test equipment. Additionally, a low power mode allows for validity checks and online calibrations during measurements with a small magnetic flux density of 0:2 mT. KW - Magnetspule KW - Selbstkalibrierung Y1 - 2018 SN - 978-3-8007-4683-5 VL - 2018 PB - IEEE ER - TY - CHAP A1 - Schwarz, Simon A1 - Rung, Stefan A1 - Esen, Cemal A1 - Hellmann, Ralf T1 - Manufacturing of optical elements by non-contact laser processing T2 - Seventh European Seminar on Precision Optics Manufacturing, Proceedings KW - Laserbearbeitung KW - Optisches Bauelement Y1 - 2020 IS - 11478 ER - TY - JOUR A1 - Schwarz, Simon A1 - Roth, Gian-Luca A1 - Rung, Stefan A1 - Esen, Cemal A1 - Hellmann, Ralf T1 - Fabrication and evaluation of negative axicons for ultrashort pulsed laser applications JF - Optics Express KW - Ultrakurzzeitlaser Y1 - 2020 VL - Optics Express IS - 28 SP - 26207 EP - 26217 ER - TY - JOUR A1 - Kefer, Stefan A1 - Sauer, Theresia A1 - Hessler, Steffen A1 - Kaloudis, Michael A1 - Hellmann, Ralf T1 - Microstructure-Based Fiber-to-Chip Coupling of Polymer Planar Bragg Gratings for Harsh Environment Applications JF - Sensors (Basel) N2 - This article proposes and demonstrates a robust microstructure-based fiber-to-chip coupling scheme for planar Bragg grating devices. A polymer planar Bragg grating substrate is manufactured and microstructured by means of a micromilling process, while the respective photonic structures are generated by employing a sophisticated single-writing UV-exposure method. A stripped standard single mode fiber is inserted into the microstructure, which is filled with a UV-curable adhesive, and aligned with the integrated waveguide. After curing, final sensor assembly and thermal treatment, the proposed coupling scheme is capable of withstanding pressures up to 10 bar, at room temperature, and pressures up to 7.5 bar at an elevated temperature of 120 °C. Additionally, the coupling scheme is exceedingly robust towards tensile forces, limited only by the tensile strength of the employed single mode fiber. Due to its outstanding robustness, the coupling scheme enables the application of planar Bragg grating devices in harsh environments. This fact is underlined by integrating a microstructure-coupled photonic device into the center of a commercial-grade carbon fiber-reinforced polymer specimen. After its integration, the polymer-based Bragg grating sensor still exhibits a reflection peak with a dynamic range of 24 dB, and can thus be employed for sensing purposes. KW - Bragg grating sensors KW - cyclic olefin copolymers KW - fiber-to-chip coupling KW - microstructures KW - micromilling Y1 - 2020 UR - https://www.mdpi.com/1424-8220/20/19/5452/htm U6 - https://doi.org/10.3390/s20195452 VL - 20 IS - 19 SP - 5452 EP - 5452 ER - TY - JOUR A1 - Roth, Gian-Luca A1 - Haubner, Julian A1 - Kefer, Stefan A1 - Esen, Cemal A1 - Hellmann, Ralf T1 - Fs-laser based hybrid micromachining for polymer micro-opto electrical systems JF - Optics and Lasers in Engineering N2 - We report on femtosecond laser direct writing of electrically conductive copper structures on transparent cyclic olefin copolymer based planar optical chips. The process is based on a laser-induced reduction of CuO nanoparticles dissolved in a water-soluble resin. Thus generated conductive copper structures are characterized with respect to their chemical composition and electrical resistivity. In addition, the application of ultrashort laser pulses enables a hybrid micromachining approach comprising ablation of polymer substrates and the fabrication of copper patterns in a single laser processing setup. A possible electro-optical application of this approach is demonstrated by employing the copper structures as an electro-thermal microheater in combination with a polymer planar optical Bragg grating sensor. This, in turn, highlights the potential of generating copious micro-opto-electro-mechanical polymer structures for numerous sensing applications ranging from Lab-on-Chip to environmental applications using the presented hybrid micromachining approach. KW - Femtosekundenlaser KW - Bragg-Reflektor Y1 - 2020 U6 - https://doi.org/10.1016/j.optlaseng.2020.106362 VL - 137 IS - 10362 SP - 1 EP - 8 ER - TY - JOUR A1 - Roth, Gian-Luca A1 - Hessler, Steffen A1 - Kefer, Stefan A1 - Girschikofsky, Maiko A1 - Esen, Cemal A1 - Hellmann, Ralf T1 - Femtosecond laser inscription of waveguides and Bragg gratings in transparent cyclic olefin copolymers JF - Optics Express N2 - We report on a femtosecond laser based fabrication technique that enables simultaneous single-step generation of optical waveguides and Bragg gratings inside bulk cyclic olefin copolymers. Due to the nonlinear absorption of focused and spatially modulated laser radiation with a wavelength of 514 nm and a pulse duration of 450 fs, a modification concluding a refractive index shift increase inside the substrate can be achieved. A sophisticated characterization of the generated waveguides by means of an elaborate cut-back method reveals a maximum attenuation of 3.2 dB/cm. Additionally, a Mach-Zehnder interferometer is used to examine the waveguide’s refractive index profile. The integrated Bragg grating structures exhibit reflectivities up to 95 % and a spectral full width at half maximum of 288 pm, at a Bragg wavelength of 1582 nm, whereas the grating period can be deliberately chosen by adapting the fabrication parameters. Thus, due to its increased flexibility and the resulting dispensability of cost-intensive phase masks, this method constitutes an especially promising fabrication process for polymer Bragg gratings inside of bulk materials. KW - Femtosekundenlaser KW - Wellenleiter KW - Bragg-Reflektor Y1 - 2020 U6 - https://doi.org/10.1364/OE.388364 VL - 28 IS - 12 SP - 18077 EP - 18084 ER - TY - JOUR A1 - Lieb, Florian A1 - Boskamp, Tobias A1 - Stark, Hans-Georg T1 - Peak detection for MALDI mass spectrometry imaging data using sparse frame multipliers JF - Journal of Proteomics N2 - MALDI mass spectrometry imaging (MALDI MSI) is a spatially resolved analytical tool for biological tissue analysis by measuring mass-to-charge ratios of ionized molecules. With increasing spatial and mass resolution of MALDI MSI data, appropriate data analysis and interpretation is getting more and more challenging. A reliable separation of important peaks from noise (aka peak detection) is a prerequisite for many subsequent processing steps and should be as accurate as possible. We propose a novel peak detection algorithm based on sparse frame multipliers, which can be applied to raw MALDI MSI data without prior preprocessing. The accuracy is evaluated on a simulated data set in comparison with state-of-the-art algorithms. These results also show the proposed method's robustness to baseline and noise effects. In addition, the method is evaluated on real MALDI-TOF data sets, whereby spatial information can be included in the peak picking process. Significance: The field of proteomics, in particular MALDI Imaging, encompasses huge amounts of data. The processing and preprocessing of this data in order to segment or classify spatial structures of certain peptides or isotope patterns can hence be cumbersome and includes several independent processing steps. In this work, we propose a simple peak-picking algorithm to quickly analyze large raw MALDI Imaging data sets, which has a better sensitivity than current state-of-the-art algorithms. Further, it is possible to get an overall overview of the entire data set showing the most significant and spatially localized peptide structures and, hence, contributes all data driven evaluation of MALDI Imaging data. KW - MALDI imaging, Peak picking, Frame multiplier KW - MALDI-MS KW - Massenspektrometrie Y1 - 2020 UR - https://doi.org/10.1016/j.jprot.2020.103852 U6 - https://doi.org/https://doi.org/10.1016/j.jprot.2020.103852 VL - 2020 IS - 225 SP - 103852 EP - 103860 ER - TY - RPRT A1 - Schmitt, Joachim T1 - Digitaler Wandel – Einsichten in aktuelle Phänomene N2 - Das Thema „Digitaler Wandel“ ist umfassend und vielfältig. Entsprechend bedarf es der multiperspektivischen Erörterung, was die Leitung des Information Management Instituts (IMI) dazu motivierte, das Format einer Ringvorlesung an der TH Aschaffenburg anzugehen. Damit ist es im Wintersemester 2019/2020 gelungen, ein ganzes Portfolio von Sichtweisen über das Themengebiet darzulegen. Neben Professoren der TH Aschaffenburg waren auch externe Referenten involviert. Die Ringvorlesung war sowohl Studierenden der Hochschule, im Rahmen eines Wahlfachs, als auch der allgemeinen Öffentlichkeit zugänglich. Für den Hochschulstandort Aschaffenburg war dies die erste Ringvorlesung. KW - Ringvorlesung KW - Digitalisierung Y1 - 2020 PB - IMI Verlag CY - Aschaffenburg ER - TY - BOOK A1 - Hofmann, Georg Rainer A1 - Schumacher, Meike A1 - Hartlaub, Peter A1 - Scheidler, Percy A1 - Schmitt, Joachim A1 - Falkenberg, Lucia T1 - Digital. Konzertiert. Aktiv - Die Transformation der Arbeitswelt gemeinsam gestalten N2 - Der vorliegende Text basiert einerseits auf den Ergebnissen von studentischen Arbeiten, welche im Sommersemester 2018 und im Wintersemester 2018/2019 am IMI erstellt wurden. Weiter trafen sich die Autoren Prof. Dr. Georg Rainer Hofmann und Meike Schumacher (beide TH Aschaffenburg) über ein Jahr ca. alle zwei Monate zu jeweils zweistündigen Gesprächen mit Vertretern der KAB (Herr Joachim Schmitt, Herr Peter Hartlaub) und der IG Metall (Herr Percy Scheidler, Frau Manuela Lüft, Herr Simon Kruppa), sowie Herr Rudi Grossmann, ehemaliger Kreisvorsitzender des Deutschen Gewerkschaftsbundes (DGB), der auch Mitglied der KAB ist. Es wurden in diesen Gesprächen eine Vielzahl von Erkenntnissen und Perspektiven zum Thema der „Neuen Arbeitswelt“ identifiziert. Frau Lucia Falkenberg, Chief People Officer (CPO) und Leiterin der Kompetenzgruppe New Work des eco – Verband der Internetwirtschaft e. V. vertritt in der vorliegenden Studie die Perspektive der Arbeitgeber in der Digitalen Transformation (Kap. 2.4); die Arbeitgeber haben das Problem der hinreichenden Attraktivität ihrer Unternehmen bei der Gewinnung qualifizierter Fachkräfte zu gegenwärtigen. Die Beteiligten fanden diese neuen Aspekte – insbesondere weil sie aus verschiedenen Bereichen des Bemühens um eine Humanisierung der Arbeitswelt stammen – einer Dokumentation wert. Aus diesem Grund wurde eine Ausarbeitung – als Diskussionsangebot und -beitrag – vorgenommen, in die sowohl die veränderten Rahmenbedingungen der Arbeitswelt, als auch einige Überlegungen zu politischen Handlungsoptionen geflossen sind. KW - Arbeit KW - Digitalisierung Y1 - 2019 SN - 978-3-9818442-2-1 PB - IMI Verlag CY - Aschaffenburg ER - TY - CHAP A1 - Gold-Veerkamp, Carolin A1 - Diethelm, Ira A1 - Abke, Jörg T1 - A Mixed Methods Research Agenda to Identify Undergraduate Misconceptions in Software Engineering, Lecturers' Handling, and Didactical Implications T2 - In Proceedings of the 2020 IEEE/ACM 42nd International Conference on Software Engineering (ICSE) KW - Hochschuldidaktik KW - Software Engineering Y1 - 2020 SN - ISBN 978-1-4503-7121-6 VL - 2020 SP - 256 EP - 257 ER - TY - CHAP A1 - Klopp, Marco A1 - Gold-Veerkamp, Carolin A1 - Abke, Jörg A1 - Borgeest, Kai A1 - Reuter, Rebecca A1 - Jahn, Sabrina A1 - Mottok, Jürgen A1 - Sedelmaier, Yvonne A1 - Lehmann, Alexander A1 - Landes, Dieter T1 - Totally Different and yet so Alike – Three Concepts to Use Scrum in Higher Education T2 - ECSEE '20: European Conference on Software Engineering Education KW - Hochschuldidaktik KW - Software Engineering Y1 - 2020 SN - ISBN 78-1-4503-7752-2 VL - 2020 SP - 12 EP - 21 ER - TY - RPRT A1 - Hartmann, Kilian T1 - Einsatz derivativer instrumente für die Integration erneuerbarer Energien in bestehende Strommärkte N2 - Die aktuellen politischen Maßnahmen zur Integration erneuerbarer Energien in den Strommarkt sind ineffizient und teuer, gleichzeitig schädigen sie den bestehenden Markt. Mittels der Kombi-nation fluktuierender und regelbarer erneuerbarer Energien in Kombikraftwerken und der Ver-marktung der Leistung als Derivat am Terminmarkt kann der Spotmarkt entlastet werden. In der Folge reduziert sich die EEG-Umlage und erneuerbare Energien können als gesicherte Leistung im Markt zur Verfügung gestellt werden. Im folgenden Beitrag soll ein organisatorischer Ansatz für die Integration erneuerbarer Energien in den Strommarkt aufgezeigt werden, der den Ausbau der erneuerbaren Energien unter marktwirt-schaftlichen Aspekten ermöglicht, die Versorgungssicherheit gewährleistet und dem bestehenden Kraftwerkspark einen geordneten Umbau hin zu einem flexiblen System ermöglicht. (2) (PDF) Einsatz derivativer Instrumente für die Integration erneuerbarer Energien in bestehende Strommärkte. Available from: https://www.researchgate.net/publication/317580615_Einsatz_derivativer_Instrumente_fur_die_Integration_erneuerbarer_Energien_in_bestehende_Strommarkte. KW - Erneuerbare Energien KW - Marktintegration KW - Terminmarkt KW - Energiemarkt KW - Erneuerbare Energien Y1 - 2017 UR - https://www.researchgate.net/publication/317580615_Einsatz_derivativer_Instrumente_fur_die_Integration_erneuerbarer_Energien_in_bestehende_Strommarkte U6 - https://doi.org/10.13140/RG.2.2.36571.36645 ER - TY - JOUR A1 - Candra, Dodiek Ika A1 - Hartmann, Kilian A1 - Nelles, Michael T1 - Economic Optimal Implementation of Virtual Power Plants in the German Power Market JF - MDPI energies N2 - The burden of excess energy from the high renewable energy sources (RES) share creates a significant reduction of residual load for the future, resulting in reduced market prices. The higher the share of stochastic RES, the more often the price will be 0 €/MWh. The power market needs new methods to solve these problems. The development of virtual power plants (VPPs) is aimed at solving techno-economic problems with an increasing share of RES in the power market. This study analyses a possible implementation of stochastic and deterministic RES in a VPP to generate secured power, which can be implemented in the European Power Exchange (EPEX)/European Energy Exchange (EEX) power market using existing market products. In this study, the optimal economic VPP configuration for an RES-based power plant is investigated and implemented into standard power market products. The results show that the optimal economic VPP configuration for different market products varies, depending on the energy availability and the marginal costs of the VPP components. The size of the VPP components is positively correlated to the components’ share of the energy generated. It was also found that projecting or implementing VPPs in Germany at current market prices (EPEX/EEX prices) is not yet economically feasible for a small share of market products. However, the secured power can be marketed on the SPOT and in the futures market with higher and more stable prices compared with the status quo. KW - VPP; marketing; configuration; energy transition; power market; EPEX; EEX; power market products KW - Elektrizitätsmarkt KW - Virtuelles Kraftwerk Y1 - 2018 UR - https://www.mdpi.com/1996-1073/11/9/2365 U6 - https://doi.org/10.3390/en11092365 VL - 11 IS - 11/09 SP - 2365 EP - 2373 ER - TY - BOOK A1 - Borgeest, Kai T1 - Messtechnik und Prüfstände für Verbrennungsmotoren KW - Verbrennungsmotor KW - Prüfstand KW - Messtechnik KW - Kraftfahrzeugtechnik KW - Thermodynamik KW - Regelungstechnik Y1 - 2020 SN - 0000-0003-4289-0083 U6 - https://doi.org/10.1007/978-3-658-29105-1 VL - 2020 PB - Springer-Vieweg CY - Wiesbaden ET - 2. Auflage ER - TY - JOUR A1 - Krüger, Malte T1 - Multilateral interchange fees: Don’t throw the baby out with the bathwater JF - Journal of Payments Strategy & Systems N2 - When it comes to multilateral interchange fees (MIFs), the regulatory authorities are demonstrably inconsistent. At the same time as (erroneously) treating them like conventional cartel prices, they have also mandated an upper ceiling for them — effectively legitimising the concept. As this paper demonstrates, classifying MIFs with standard cartel pricing is a categorical error. A capped MIF is simply one ingredient of a well-functioning card payment system. Indeed, without MIFs, payments markets suffer free-rider problems and high transaction costs. To illustrate how MIFs curtail the tendency of prices to move upward, the paper examines the German ATM system before 2011. Finally, the paper argues that the current regulatory approach may lead to the demise of those European card schemes that are currently under pressure from MasterCard and Visa. KW - multilateral interchange fees, card payment systems, competition policy, European card scheme, two-sided markets, interchange fee regulation KW - Kreditkartengeschäft Y1 - 2019 VL - 13 IS - 2 SP - 138 EP - 150 ER - TY - JOUR A1 - Goldhammer, Michael A1 - Köhler, Sebastian A1 - Zernetsch, Stefan A1 - Doll, Konrad A1 - Sick, Bernhard A1 - Dietmayer, Klaus T1 - Intentions of Vulnerable Road Users – Detection and Forecasting by Means of Machine Learning JF - IEEE Transactions on Intelligent Transportation Systems KW - Fahrerassistenzsystem KW - Fußgänger KW - Radfahrer Y1 - 2019 UR - https://doi.org/10.1109/TITS.2019.2923319 U6 - https://doi.org/10.1109/TITS.2019.2923319 VL - 2020 IS - 21 / 7 SP - 3035 EP - 3045 ER - TY - GEN A1 - Kefer, Stefan A1 - Dai, Jixiang A1 - Yang, Minghong A1 - Schmauss, Bernhard A1 - Hellmann, Ralf T1 - Hypersensitive H2 sensor based on polymer planar Bragg gratings coated with Pt-loaded WO3–SiO2: erratum N2 - We present an erratum to our Letter [Opt. Lett. 45, 3601 (2020)]. Labeling errors in two figures and an incorrect sentence are revised. The corrections have no influence on the conclusions of the original Letter. N2 - Erratum KW - Bragg Grating, Hydrogen Detection, Functionalization KW - Gassensor KW - Wasserstoff KW - Bragg-Reflektor Y1 - 2020 UR - https://www.osapublishing.org/ol/abstract.cfm?uri=ol-45-16-4498 U6 - https://doi.org/https://doi.org/10.1364/OL.401819 VL - 45 IS - 16 SP - 4498 EP - 4498 ER - TY - THES A1 - Körbitzer, Berit Silke T1 - Untersuchung funktioneller Schnittstellen zwischen Graphen und neuronalen Zellen KW - Mikroelektrode KW - Array KW - Graphen KW - Elektrode Y1 - 2019 U6 - https://doi.org/10.25534/tuprints-00011462 ER - TY - THES A1 - Emmerich, Florian T1 - Eigenschaften und Anwendungen von Dünnschicht-Elektretmaterialien KW - Dünnschichttechnik KW - Elektret Y1 - 2020 U6 - https://doi.org/10.25534/tuprints-00012056 ER - TY - CHAP A1 - Niekamp, Linus A1 - Döhring, Thorsten A1 - Rees, Paul A1 - Hudec, Rene T1 - Technologies, challenges and opportunities for optical CubeSat payloads T2 - DGaO Proceedings N2 - This contribution describes optical payloads of CubeSat nanosatellites and their limiting factors. Some prominent examples are presented, and performance characteristics are discussed in the context of different commercial and scientific applications. Furthermore, the optical payload market has been evaluated and identified suppliers of commercial-of-the-shelf products are listed. KW - CubeSat KW - payload KW - satellite KW - Optik KW - Kleinsatellit Y1 - 2020 UR - https://www.dgao-proceedings.de/download/121/121_p30.pdf SN - 1614-8436 VL - 2020 IS - 2020 SP - 1 EP - 2 PB - Deutsche Gesellschaft für angewandte Optik ER - TY - CHAP A1 - Döhring, Thorsten A1 - Stritzelberger, Carolyn A1 - Rosendahl, Wilfried A1 - Busch, Uwe T1 - Forschungsstation an der TH Aschaffenburg – Schülerexperimente im Röntgen-Jubiläumsjahr T2 - DGaO Proceedings N2 - Deutschland begeht 2020 das Röntgenjahr und feiert damit die Entdeckung der Röntgenstrahlen vor 125 Jahren. Ein Sprinter mit interaktiven Experimenten für Kinder und Jugendliche sollte hierzu im Jubiläumsjahr deutschlandweit unterwegs sein. Die eingeplante Station des „X-perimente“-Mobils an der TH Aschaffenburg konnte wegen der Corona-Pandemie leider noch nicht durchgeführt werden. KW - Röntgen KW - Röntgenstrahlung KW - Röntgenjahr KW - X-perimente KW - Röntgenstrahlung KW - Schülerversuch Y1 - 2020 UR - https://www.dgao-proceedings.de/download/121/121_p16.pdf SN - 1614-8436 VL - 2020 IS - 2020 SP - 1 EP - 2 PB - Deutsche Gesellschaft für angewandte Optik e.V. ER - TY - JOUR A1 - Rung, Stefan A1 - Bokan, Kevin A1 - Schwarz, Simon A1 - Esen, Cemal A1 - Hellmann, Ralf T1 - Influence of laser wavelength on the modification of friction between 100Cr6 steel and polytetrafluoroethylene by femtosecond laser-induced periodic surface structures JF - Journal of Laser Applications KW - Femtosekundenlaser Y1 - 2020 U6 - https://doi.org/10.2351/7.0000036 VL - 32 IS - 3 SP - 032017-1 EP - 032017-6 ER - TY - JOUR A1 - Hartmann, Kilian A1 - Candra, Dodiek Ika A1 - Nelles, Michael T1 - Von einer fluktuierenden zur verlässlichen Stromerzeugung JF - ew Magazin für die Energiewirtschaft N2 - Erneuerbare-Energien-Anlagen speisen ihren Strom bisher vorwiegend fluktuierend in die Stromnetze ein. Durch Kombination dieser fluktuierenden Erzeugung zum Beispiel aus Photovoltaik oder Windenergie mit flexibler Erzeugung aus Biogas in einem virtuellen Kraftwerk können diese Herausforderungen jedoch gelöst werden. Geeignete Technologien und IKT-Infrastrukturen vorausgesetzt, können erneuerbare Energien damit künftig zu einer verlässlichen Stromerzeugung werden. KW - Energiemanagement KW - erneuerbare Energien KW - Erneuerbare Energien KW - Energiemanagement Y1 - 2019 UR - https://emagazin.ew-magazin.de/de/profiles/a21024e15cd4/editions/41fdcbacdbbd41f3c573/pages/page/42 VL - 04/2019 IS - 7655 SP - 42 EP - 44 ER - TY - JOUR A1 - Wilches, Camilo A1 - Nelles, Michael A1 - Hartmann, Kilian T1 - Representative sampling Implementation in Online VFA/TIC Monitoring for Anaerobic Digestion JF - MDPI energies N2 - This paper describes an automatic sampling system for anaerobic reactors that allows taking representative samples following the guidelines of Gy’s (1998) theory of sampling. Due to the high heterogeneity degree in a digester the sampling errors are larger than the analysis error, making representative sampling a prerequisite for successful process control. In our system, samples are automatically processed, generating a higher density of data and avoiding human error by sample manipulation. The combination of a representative sampling system with a commercial automate titration unit generates a robust online monitoring system for biogas plants. The system was successfully implemented in an operating biogas plant to control a feeding-on-demand biogas system. KW - renewable energies KW - biogas KW - process control KW - Erneuerbare Energien KW - Biogas KW - Biogasanlage Y1 - 2019 UR - https://www.mdpi.com/1996-1073/12/6/1179 U6 - https://doi.org/https://doi.org/10.3390/en12061179 VL - 12 IS - 12/06 SP - 1179 EP - 1186 ER - TY - JOUR A1 - Kefer, Stefan A1 - Dai, Jixiang A1 - Yang, Minghong A1 - Schmauss, Bernhard A1 - Hellmann, Ralf T1 - Hypersensitive H2 sensor based on polymer planar Bragg gratings coated with Pt-loaded WO3-SiO2 JF - Optics Letters N2 - This letter demonstrates a novel hydrogen sensor based on a polymer planar Bragg grating coated with Pt-loaded WO3-SiO2. The reflected Bragg signal shows a distinct peak splitting correlated to substrate anisotropies originating from the injection molding process. Especially at low H2 concentrations, both sensing peaks exhibit an outstanding response to the heat generated by the exothermic reaction between hydrogen molecules and coating. Thereby, a hydrogen volume ratio of 50 ppm leads to a Bragg wavelength shift of -37 pm, which yields an outstandingly low detection limit of only 5 ppm H2 in air. Thus, functionalized polymer planar Bragg gratings are eminently suitable for H2 leak detection applications. KW - Bragg Grating Sensors KW - Hydrogen Detection KW - Cyclic Olefin Copolymers KW - Gassensor KW - Wasserstoff KW - Bragg-Reflektor Y1 - 2020 UR - https://www.osapublishing.org/ol/abstract.cfm?uri=ol-45-13-3601 U6 - https://doi.org/https://doi.org/10.1364/OL.395341 VL - 45 IS - 13 SP - 3601 EP - 3604 ER - TY - CHAP A1 - Krini, Mohammed A1 - Madhu, Nilesh T1 - Improved F0 Estimation by Generalised Spectral Refinement Applied to DFT-Modulated Polyphase Filterbanks T2 - International Symposium on Embedded Computing and System Design, Amrita Vishwa Vidyapeetham KW - Filterbank KW - Signalverarbeitung Y1 - 2019 SN - 9781728141770 ER - TY - CHAP A1 - Krini, Mohammed A1 - Madhu, Nilesh T1 - Generalized Refinement of Short-Term Fourier Spectra in Time- and Frequency Domain and its Combination with Polyphase Filterbanks T2 - IEEE International Symposium on Signal Processing and Information Technology (ISSPIT'19), Ajman KW - Filterbank KW - Sprachverarbeitung Y1 - 2019 VL - 2019 ER - TY - CHAP A1 - Seitz, Christopher A1 - Krini, Mohammed T1 - DNNs versus Codebooks based Spectral Envelope Estimation for Partial Reconstruction of Speech Signals T2 - Workshop on Speech and Audio in the Northeast (SANE’19), New York KW - Sprachverarbeitung KW - Sprachsignal Y1 - 2019 VL - 2019 ER - TY - CHAP A1 - Krini, Mohammed A1 - Rachor, Alexander T1 - DFT-Filterbanks with Spectral Refinement and its Comparison with Polyphase Filterbanks T2 - 23rd International Congress on Acoustics (ICA'19), Aachen KW - Filterbank KW - Diskrete Fourier-Transformation Y1 - 2019 VL - 2019 ER - TY - CHAP A1 - Seitz, Christopher A1 - Krini, Mohammed T1 - Spectral Envelope Estimation Based on Deep Neural Networks and its use for Speech Reconstruction T2 - 45th German Annual Conference on Acoustics (DAGA’19), Rostock KW - Sprachverarbeitung KW - Neuronales Netz Y1 - 2019 ER - TY - CHAP A1 - Seitz, Christopher A1 - Krini, Mohammed T1 - Schätzung der Spektralen Einhüllenden - Ein Vergleich von Tiefen Neuronalen Netzen und Codebüchern T2 - 20th Electronic Speech Signal Processing Conference (ESSV ’19), Dresden KW - Sprachverarbeitung KW - Neuronales Netz Y1 - 2019 VL - 2019 ER - TY - CHAP A1 - Krini, Mohammed A1 - Mirza, Zafar Baig T1 - An Adaptive Beamformer-Postfilter System for Seat belt Microphones and its Efficient Implementation on Sharc ADSP-21489 T2 - 16th IEEE International Workshop on Acoustic Signal Enhancement (IWAENC ’18), Chiyoda, Tokyo KW - Sicherheitsgurt KW - Mikrofon Y1 - 2018 VL - 2018 ER - TY - CHAP A1 - Herbert, Matthias A1 - Mirza, Zafar Baig A1 - Krini, Mohammed T1 - Real-Time Implementation of an Adaptive Beamformer-Postfilter System for Seat belt Microphones on Sharc ADSP-21489 T2 - 44th German Annual Conference on Acoustics (DAGA’18), München KW - Sicherheitsgurt KW - Mikrofon Y1 - 2018 VL - 2018 ER - TY - CHAP A1 - Krini, Mohammed T1 - Refinement Methods as Preprocessing or Postprocessing for Short-Term Spectra Analysis T2 - 19th Electronic Speech Signal Processing Conference (ESSV ’17), Saarbrücken KW - Frequenzanalyse Y1 - 2017 VL - 2017 ER - TY - CHAP A1 - Krini, Mohammed A1 - Mirza, Zafar Baig A1 - Rodemer, Klaus T1 - A Practical Beamformer-Postfilter System for Microphone Arrays on Seat Belts T2 - 12. ITG Symposium Speech Communication (ITG’16), Paderborn KW - Sicherheitsgurt KW - Mikrofon KW - Array Y1 - 2016 VL - 2016 ER - TY - JOUR A1 - Rajan, Vasudev Kandade A1 - Krini, Mohammed A1 - Schmidt, Gerhard T1 - Signal Processing Techniques for Seat Belt Micro-phone Arrays JF - EURASIP Journal on Advances in Signal Processing KW - Signalverarbeitung KW - Sicherheitsgurt KW - Mikrofon KW - Array Y1 - 2016 VL - 2016 ER - TY - CHAP A1 - Klopp, Marco T1 - Work-in-Progress: Learning Culture of Generation Z in Informatics N2 - A new generation of students is entering the university - Generation Z. This generation is characterized mainly by the existing digitization, since they grew up entirely in it. With regard to different generations, the relationship of the different ages and the associated large cohort difference in the interaction between lecturers and learners should be taken into account and analysed. It’s important because, according to the Hattie study, the most important influencing factor for the learning success of learners are the teachers. This means that excellence in teaching (according to the characteristics of the learners) is the most important single factor for the learning outcome. In order to draw the link to Informatics, the consideration of the subject-related culture and the connected learning culture is of central importance. It is obvious to recognize learning cultures in their cultural context, in their reasons and with their consequences for lecturers and students. Frames are therefore not static, but socially constructed and therefore changeable. Learning cultures are created in a communicative negotiation process by all actors in a learning situation. Subject-related culture research also deals with the question of whether and to what extent university teaching differs and which different behaviors can be found among its members. The aim is to classify the Informatics subject-related culture and to describe the ideas and expectations of lecturers and students in the learning environment and in the various social contexts of Informatics, and to reconstruct implicit, practical knowledge for the improvement of learning in Informatics. KW - Generation Geschichte 1995-2010 KW - Lernerfolg KW - Informatikstudium Y1 - 2020 SP - 1589 EP - 1593 PB - IEEE ER - TY - CHAP A1 - Pedell, Burkhard A1 - Rötzel, Peter T1 - § 24 Getrennte Rechnungsführung BT - Kommentar T2 - Telekommunikationsgesetz KW - Deutschland Telekommunikationsgesetz 2004 Y1 - 2018 SN - 978-3-406-62086-7 ER - TY - CHAP A1 - Pedell, Burkhard A1 - Rötzel, Peter T1 - § 7 Strukturelle Separierung BT - Kommentar T2 - Telekommunikationsgesetz KW - Deutschland Telekommunikationsgesetz 2004 Y1 - 2018 SN - 978-3-406-62086-7 ER - TY - CHAP A1 - Borgeest, Kai T1 - Safe Development Environments for Radiation Tracing Robots T2 - Handbook of Research on Advanced Mechatronic Systems and Intelligent Robotics N2 - Robots can substitute for men in radioactively-contaminated areas. This is a suitable field to deploy robots for measurements, repair, or clearance, but development and test of such robots could be dangerous, because radiation sources need to be handled. To avoid these hazards in development or public demonstrations, safe alternatives to radiation samples have been sought using an already existing robot (EtaBot). One proposed solution is an optical substitution (“light follower”), the other one a fully-digital simulation of the contaminated area and the robot movement inside it using a hardware-in-the-loop simulator (HiL). KW - EtaBot KW - Mobile Robot KW - Mobiler Roboter KW - Künstliche Intelligenz Y1 - 2019 SN - 9781799801375 U6 - https://doi.org/doi.org/10.4018/978-1-7998-0137-5.ch006 SP - 126 EP - 138 PB - IGI Global CY - Hershey, PA ER - TY - CHAP A1 - Rötzel, Peter T1 - Hedonic Prices in the German Market for Mobile Phones T2 - International Telecommunications Conference in association with the 31st EARIE Annual Conference, Berlin, 2-5 September 2004 KW - Mobilfunkmarkt KW - Telekommunikationsmarkt KW - Hedonischer Preis Y1 - 2004 VL - 15 ER - TY - CHAP A1 - Rötzel, Peter A1 - Pedell, Burkhard T1 - Incentive Regulation's Effects on Electricity Companies' Management, Processes, and Organisation: Evidence from the German Electricity Sector T2 - 9th Conference on Applied Infrastructure Research, Berlin, 8-9 October, 2010 KW - Elektrizitätswirtschaft KW - Elektrizitätsversorgungsnetz KW - Regulierung KW - Anreiz Y1 - 2010 ER - TY - CHAP A1 - Pedell, Burkhard A1 - Rötzel, Peter T1 - Management Accounting Education in the Public Sector: An Empirical Investigation of Competence Profiles, Assessment of Accounting Tools and Demand for Management Accounting Support T2 - 33rd Annual Congress of the European Accounting Association, Istanbul, 19-21 May 2010 KW - Management Accounting KW - Öffentlicher Sektor Y1 - 2010 ER - TY - CHAP A1 - Rötzel, Peter A1 - Pedell, Burkhard T1 - The Benefit of Management Accounting in Idea Management Systems: Evidence from German Industries T2 - 34 th Annual Congress of the European Accounting Association, Rome-Siena, 20-22 April 2011 KW - Management Accounting KW - Innovationsmanagement Y1 - 2011 ER -