TY - JOUR A1 - Burdin, Dmitrii A. A1 - Ekonomov, Nikolai A. A1 - Chashin, Dmitri V. A1 - Fetisov, Leonid Y. A1 - Fetisov, Yuri K. A1 - Shamonin (Chamonine), Mikhail T1 - Temperature Dependence of the Resonant Magnetoelectric Effect in Layered Heterostructures JF - Materials N2 - The dependence of the resonant direct magnetoelectric effect on temperature is studied experimentally in planar composite structures. Samples of rectangular shapes with dimensions of 5 mm x 20 mm employed ferromagnetic layers of either an amorphous (metallic glass) alloy or nickel with a thickness of 20-200 m and piezoelectric layers of single crystalline langatate material or lead zirconate titanate piezoelectric ceramics with a thickness of 500 m. The temperature of the samples was varied in a range between 120 and 390 K by blowing a gaseous nitrogen stream around them. It is shown that the effective characteristics of the magnetoelectric effectsuch as the mechanical resonance frequency f(r), the quality factor Q and the magnitude of the magnetoelectric coefficient (E) at the resonance frequencyare contingent on temperature. The interrelations between the temperature changes of the characteristics of the magnetoelectric effect and the temperature variations of the following material parametersYoung's modulus Y, the acoustic quality factor of individual layers, the dielectric constant epsilon, the piezoelectric modulus d of the piezoelectric layer as well as the piezomagnetic coefficients ((n)) of the ferromagnetic layerare established. The effect of temperature on the characteristics of the nonlinear magnetoelectric effect is observed for the first time. The results can be useful for designing magnetoelectric heterostructures with specified temperature characteristics, in particular, for the development of thermally stabilized magnetoelectric devices. KW - acoustic quality factor KW - composite structure KW - linear KW - magnetoelectric effect KW - magnetoelectric heterostructure KW - magnetostriction KW - nonlinear KW - piezoelectric KW - temperature dependence Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-32185 N1 - corresponding author: Mikhail Shamonin VL - 10 IS - 10 PB - MDPI ER - TY - CHAP A1 - Weiss, Nils A1 - Renner, Sebastian A1 - Mottok, Jürgen A1 - Matoušek, Václav T1 - Automated Threat Evaluation of Automotive Diagnostic Protocols T2 - ESCAR USA, 2021, Virtual N2 - Diagnostic protocols in automotive systems can offer a huge attack surface with devastating impacts if vulnerabilities are present. This paper shows the application of active automata learning techniques for reverse engineering system state machines of automotive systems. The developed black-box testing strategy is based on diagnostic protocol communication. Through this approach, it is possible to automatically investigate a highly increased attack surface. Based on a new metric, introduced in this paper, we are able to rate the possible attack surface of an entire vehicle or a single Electronic Control Unit (ECU). A novel attack surface metric allows comparisons of different ECUs from different Original Equipment Manufacturers (OEMs), even between different diagnostic protocols. Additionally, we demonstrate the analysis capabilities of our graph-based model to evaluate an ECUs possible attack surface over a lifetime. KW - Automotive Diagnostic Protocols KW - Security Metrics KW - Automated Network Scan Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-29882 ER - TY - JOUR A1 - Monkman, Gareth J. A1 - Sindersberger, Dirk A1 - Prem, Nina T1 - Magnetically enhanced photoconductive high voltage control JF - ISSS Journal of Micro and Smart Systems N2 - The recent surge of interest in electrostatic actuators, particularly for soft robotic applications, has placed increasing demands on high voltage control technology. In this respect, optoelectronic bidirectional switching and analogue regulation of high voltages is becoming increasingly important. One common problem is the leakage current due to dark resistance of the material or device used. Another is the physical size of such elements. However, their ability to provide galvanic separation makes them a very attractive alternative to conventional (wired) semiconductor elements. This paper gives an overview of available methods and devices before introducing a concept based on the combination of photoresistive and magnetoresistive effects in Gallium Arsenide that are potentially applicable to other semiconductor materials. KW - GaAs KW - High voltage actuators KW - Magnetoresistance KW - Opto-sensors KW - Photoconduction KW - Soft robotics Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-30606 N1 - Corresponding author: Gareth J. Monkman VL - 11 SP - 317 EP - 328 PB - Springer Nature ER - TY - CHAP A1 - Diehl, Andreas A1 - Wolff, Lilli A1 - Fuhrmann, Thomas A1 - Niemetz, Michael A1 - Mörtlbauer, Stefanie A1 - Dirnberger, Sandra T1 - Compact Freshmen Welcome Seminar for Engineering Students T2 - Procedia - Social and Behavioral Sciences N2 - The Faculty of Electrical Engineering and Information Technology of the OTH Regensburg developed and implemented a compact freshmen seminar for the afternoon of the first day of study. The intention of this seminar is to help the freshmen during their transition between school and study without losing lecture time in the first semester. The concept was tested with one small study group at the beginning of the summer semester 2015. To rate the impact of the seminar and to find aspects for continuous improvement an evaluation method was developed and used. Due to the good student resonance during the first run, this introduction seminar was held again in the winter semester 2015/16. It is planned to integrate this seminar as a regular session for all freshmen of the faculty curriculum and monitor the long-term effects of student motivation and success. KW - Engineering Education KW - Freshmen Seminar Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-31034 N1 - Corresponding author: Thomas Fuhrmann IS - 228 SP - 45 EP - 52 PB - Elsevier ER - TY - GEN A1 - Langer, Tobias T1 - Konzeption und Hardwareaufbau eines Dual-CAN (FD) Demonstrators mit Failure Injection Board und TFT-Touchdisplay N2 - Controller Area Network (CAN) ist in automatisierten Bereichen der Industrie ein wichtiger Bestandteil der Kommunikation vieler einzelner Komponenten. Spezielle Anwendungen fordern einen erhöhten Standard hinsichtlich Sicherheit und Fehlertoleranz. Eine Steigerung der Zuverlässigkeit des Systems ist somit numgänglich. Die vorliegende Arbeit befasst sich mit der Untersuchung eines Dual-CAN-Bussystems. Hierzu zählt die Entwicklung und Umsetzung eines Demonstratoraufbaus. Es werden fünf Nucleo STM32H7 Boards um ein sogenanntes Failure Injection Board (FIB) und ein 3,5" TFT-Touchdisplay erweitert sowie redundant miteinander über zwei speparate CAN verbunden. Mithilfe des FIBs wird das duale CAN-Netzwerk realisiert. Außerdem können die Abschlusswiderstände per Knopfdruck zugeschaltet und Drahtbrüche durch Relais auf dem redundanten CAN-Bus simuliert werden. Als weitere Anzeige- und Bedienmöglichkeit wird ein Touchdisplay auf das Nucleo STM32H7 Board gesteckt. Hier soll eine GUI eine intuitive Bedienung ermöglichen und den aktuellen Status der weiteren Teilnehmer im Netz anzeigen. Das FIB dient zur Entwicklung von Algorithmen um Fehler bzw. Drahtbrüche zu umgehen oder auch andere Busstrukturen zu untersuchen. KW - Controller Area Network KW - Labor für industrielle Elektronik KW - Zuverlässige Kommunikation Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-29852 ER - TY - JOUR A1 - Sterner, Michael A1 - Specht, Michael T1 - Power-to-Gas and Power-to-X-The History and Results of Developing a New Storage Concept JF - Energies N2 - Germany's energy transition, known as 'Energiewende', was always very progressive. However, it came technically to a halt at the question of large-scale, seasonal energy storage for wind and solar, which was not available. At the end of the 2000s, we combined our knowledge of both electrical and process engineering, imitated nature by copying photosynthesis and developed Power-to-Gas by combining water electrolysis with CO2-methanation to convert water and CO2 together with wind and solar power to synthetic natural gas. Storing green energy by coupling the electricity with the gas sector using its vast TWh-scale storage facility was the solution for the biggest energy problem of our time. This was the first concept that created the term 'sector coupling' or 'sectoral integration'. We first implemented demo sites, presented our work in research, industry and ministries, and applied it in many macroeconomic studies. It was an initial idea that inspired others to rethink electricity as well as eFuels as an energy source and energy carrier. We developed the concept further to include Power-to-Liquid, Power-to-Chemicals and other ways to 'convert' electricity into molecules and climate-neutral feedstocks, and named it 'Power-to-X'at the beginning of the 2010s. KW - 100% renewable energy scenarios KW - CARBON RECYCLING SYSTEM KW - CO2 KW - eFuels KW - electric fuels KW - energy transition KW - hydrogen KW - methanation KW - METHANOL KW - Power-to-Gas KW - Power-to-Hydrogen KW - Power-to-Methane KW - Power-to-X KW - sector coupling KW - sectoral integration KW - TRANSPORTATION Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-26202 N1 - Corresponding author: Michael Sterner VL - 14 IS - 20 PB - MDPI ER - TY - JOUR A1 - Schiek, Roland T1 - Excitation of nonlinear beams: from the linear Talbot effect through modulation instability to Akhmediev breathers JF - Optics express N2 - The smooth transition between stable, Talbot-effect-dominated and modulationally unstable nonlinear optical beam propagation is described as the superposition of oscillating, growing and decaying eigenmodes of the common linearized theory of modulation instability. The saturation of the instability in form of breather maxima is embedded between eigenmode growth and decay. This explains well the changes of beam characteristics when the input intensity increases in experiments on modulation instability and breather excitation in spatial-spatial experimental platforms. An increased accuracy of instability gain measurements, a variety of interesting nonlinear beam scenarios and a more selective and well-directed breather excitation are demonstrated experimentally. KW - DYNAMICS KW - FIBER KW - GENERATION KW - PEREGRINE SOLITON KW - SPATIAL SOLITONS KW - WAVE-GUIDE Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-26049 N1 - Corresponding author: Roland Schiek VL - 29 IS - 10 SP - 15830 EP - 15851 PB - Optica Publishing Group CY - Washington, DC, USA ER - TY - JOUR A1 - Monkman, Gareth J. A1 - Striegl, Birgit A1 - Prem, Nina A1 - Sindersberger, Dirk T1 - Electrical Properties of Magnetoactive Boron‐Organo‐Silicon Oxide Polymers JF - Macromolecular Chemistry and Physics N2 - The electrical properties of rheopectic magnetoactive composites comprising boron-organo-silicon oxide dielectric matrices containing carbonyl iron microparticles are presented for the first time. The increase in interfacial magnetocapacitance is seen to greatly exceed that experienced when using conventional elastomeric matrices such as polydimethylsiloxane. In addition to the increase in capacitance, a simultaneous and sharp decrease in the parallel electrical resistance over several orders of magnitude is also observed. The effects are time dependent but repeatable. Potential applications include magnetically controlled frequency dependent devices, magnetic sensor systems, weighting elements for neural networks, etc. Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-26488 N1 - Corresponding author: Gareth J. Monkman VL - 221 IS - 4 SP - 1 EP - 8 PB - Wiley ER - TY - JOUR A1 - Prem, Nina A1 - Sindersberger, Dirk A1 - Monkman, Gareth J. T1 - Infrared spectral analysis of low concentration magnetoactive polymers JF - Journal of Applied Polymer Science N2 - This work concerns an area of magnetoactive polymer (MAP) research seldom considered. Traditionally only MAP with high concentrations of magnetic filler (typically between 10 and 90 wt%) have been investigated. This article deals with a hitherto neglected aspect of research, namely MAP containing lower magnetic filler concentrations (1 to 3 wt%). This article utilizes a range of spectroscopic analysis methods (Raman and FTIR) and their applicability to MAP characterization at wavelengths ranging from 2.5 to 25 mu m. Particular attention is paid to low carbonyl iron particle (CIP) concentrations in MAP for which the emergence of capillary doublets at a critical 2 wt% concentration is revealed. This results in measurable magnetic field-dependent changes in IR absorption at a wavelength of 4.255 mu m together with a detectable CO2 susceptibility. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48366. KW - ELASTOMERS KW - magnetism and magnetic properties KW - sensors and actuators KW - spectroscopy Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-25913 SN - 1097-4628 N1 - Corresponding author: Nina Prem VL - 137 IS - 7 SP - 1 EP - 7 PB - Wiley ER - TY - RPRT A1 - Lermer, Valentin josef A1 - Heiß, Simon A1 - Gierl, Philipp A1 - Rappl, Veronika A1 - Ardaya-Lieb, Samuel A1 - Möhring, Christoph A1 - Solisch, Matthias A1 - Solisch, Tobias A1 - Garschhammer, Kilian A1 - Kammerl, Andreas A1 - Kolb, Moritz A1 - Hohenadler, Franz A1 - Reber, Luis A1 - Hartwig, Anton A1 - Schaller, Jonas A1 - Meyer, Katrin A1 - Lausser, Florian ED - Meier, Hans ED - Niemetz, Michael ED - Fuhrmann, Thomas ED - Reindl, Andrea T1 - FMS-BERICHTE SOMMERSEMESTER 2022 BT - Seminar zu aktuellen Themen der Elektro- und Informationstechnik N2 - Dieser Bericht entstand im Rahmen der Lehrveranstaltung „Forschungsmethoden und Seminar (FMS)“ im Sommersemester 2022 auf Initiative der Studierenden des Masterstudiengangs „Elektro- und Informationstechnik (MEI)“. Diese Lehrveranstaltung hat das Ziel, systematisch an das wissenschaftliche Arbeiten, speziell die Wissenschaftskommunikation, heranzuführen. Daher war geeignete Literatur zu einem individuellen Thema zu recherchieren, Veröffentlichungen auf ihre Relevanz hin zu beurteilen und letztendlich eine eigene Ausarbeitung basierend auf der Literaturrecherche zu erarbeiten und diese in einem Vortrag zu präsentieren. Parallel dazu erfolgte im Theorieteil die entsprechende Hinführung zu den verschiedenen Elementen der Wissenschaftskommunikation: • Bedeutung der Wissenschaftskommunikation für die Arbeit der Ingenieure in Forschung und Entwicklung • Literaturrecherche, Suchmaschinen, Sichtung und Analyse vorhandener Publikationen, Bewertung der Qualität aufgefundener Fachliteratur, Auswahl geeigneter Materialien für die eigene Arbeit • Aufbereitung und Darstellung der recherchierten technischer Inhalte in Form einer seitenanzahlbegrenzten wissenschaftlichen Ausarbeitung • Einhalten formaler Randbedingungen bzgl. Strukturierung, einschl. Bildnachweise und Zitationsstile • Peer-review-Prozess bei wertschätzender Beurteilung der Leistung anderer • Publikumsangepasstes Aufbereiten komplexer fachlicher Inhalte mit hochschulöffentlicher Präsentation der Ergebnisse • Führen mündlicher wissenschaftlicher Diskurse Nachdem die Masterstudierenden in der Regel über noch keine eigene wissenschaftliche Forschungserfahrung bzw. -inhalte verfügen, lag der wählbare Schwerpunkt der Literatursuche auf der Bearbeitung von vorgegeben aktuellen technischen oder gesellschaftspolitischen Forschungsthemen. T3 - Forschungsmethoden-Seminar - 4 KW - Literaturrecherche KW - Energietechnik KW - Informationstechnik KW - Elektrotechnik KW - Angewandte Wissenschaften Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-54685 CY - Regensburg ER - TY - JOUR A1 - Gärtner, Sebastian A1 - Marx-Schubach, Thomas A1 - Gaderer, Matthias A1 - Schmitz, Gerhard A1 - Sterner, Michael T1 - Techno-Economic Analysis of Carbon Dioxide Separation for an Innovative Energy Concept towards Low-Emission Glass Melting JF - energies N2 - The currently still high fossil energy demand is forcing the glass industry to search for innovative approaches for the reduction in CO2 emissions and the integration of renewable energy sources. In this paper, a novel power-to-methane concept is presented and discussed for this purpose. A special focus is on methods for the required CO2 capture from typical flue gases in the glass industry, which have hardly been explored to date. To close this research gap, process simulation models are developed to investigate post-combustion CO2 capture by absorption processes, followed by a techno-economic evaluation. Due to reduced flue gas volume, the designed CO2 capture plant is found to be much smaller (40 m3 absorber column volume) than absorption-based CO2 separation processes for power plants (12,560 m3 absorber column volume). As there are many options for waste heat utilization in the glass industry, the waste heat required for CO2 desorption can be generated in a particularly efficient and cost-effective way. The resulting CO2 separation costs range between 41 and 42 EUR/t CO2, depending on waste heat utilization for desorption. These costs are below the values of 50–65 EUR/t CO2 for comparable industrial applications. Despite these promising economic results, there are still some technical restrictions in terms of solvent degradation due to the high oxygen content in flue gas compositions. The results of this study point towards parametric studies for approaching these issues, such as the use of secondary and tertiary amines as solvents, or the optimization of operating conditions such as stripper pressure for further cost reductions potential. KW - economic evaluation KW - CO2-separation KW - glass industry KW - oxyfuel KW - methanation KW - power-to-gas Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-53627 N1 - Corresponding author: Sebastian Gärtner VL - 16 IS - 5 SP - 1 EP - 25 PB - MDPI CY - Basel ER - TY - RPRT A1 - Bräuer, Armin A1 - Zwick, Christian A1 - Reif, Florian A1 - Kick, Andreas A1 - Albrecht, Manuel A1 - Mayer, Christoph A1 - Baddour, Mahmoud A1 - Stober, Lukas A1 - Kirmeier, Andreas A1 - Griesbeck, Sebastian A1 - Reger, Simon ED - Meier, Hans ED - Niemetz, Michael ED - Fuhrmann, Thomas ED - Reindl, Andrea T1 - FMS-BERICHTE WINTERSEMESTER 2021/2022 BT - Seminar zu aktuellen Themen der Elektro- und Informationstechnik N2 - Dieser Bericht entstand im Rahmen der Lehrveranstaltung „Forschungsmethoden und Seminar (FMS)“ im Wintersemester 2021/22 auf Initiative der Studierenden des Masterstudiengangs „Elektro- und Informationstechnik (MEI)“. Diese Lehrveranstaltung hat das Ziel, systematisch an das wissenschaftliche Arbeiten, speziell die Wissenschaftskommunikation, heranzuführen. Daher war geeignete Literatur zu einem individuellen Thema zu recherchieren, Veröffentlichungen auf ihre Relevanz hin zu beurteilen und letztendlich eine eigene Ausarbeitung basierend auf der Literaturrecherche zu erarbeiten und diese in einem Vortrag zu präsentieren. Parallel dazu erfolgte im Theorieteil die entsprechende Hinführung zu den verschiedenen Elementen der Wissenschaftskommunikation: • Bedeutung der Wissenschaftskommunikation für die Arbeit der Ingenieure in Forschung und Entwicklung • Literaturrecherche, Suchmaschinen, Sichtung und Analyse vorhandener Publikationen, Bewertung der Qualität aufgefundener Fachliteratur, Auswahl geeigneter Materialien für die eigene Arbeit • Aufbereitung und Darstellung der recherchierten technischer Inhalte in Form einer seitenanzahlbegrenzten wissenschaftlichen Ausarbeitung • Einhalten formaler Randbedingungen bzgl. Strukturierung, einschl. Bildnachweise und Zitationsstile • Peer-review-Prozess bei wertschätzender Beurteilung der Leistung anderer • Publikumsangepasstes Aufbereiten komplexer fachlicher Inhalte mit hochschulöffentlicher Präsentation der Ergebnisse • Führen mündlicher wissenschaftlicher Diskurse Nachdem die Masterstudierenden in der Regel über noch keine eigene wissenschaftliche Forschungserfahrung bzw. -inhalte verfügen, lag der wählbare Schwerpunkt der Literatursuche auf der Bearbeitung von vorgegeben aktuellen technischen oder gesellschaftspolitischen Forschungsthemen. T3 - Forschungsmethoden-Seminar - 3 KW - Elektrotechnik KW - Informationstechnik KW - Angewandte Wissenschaften KW - Literaturrecherche KW - Energietechnik Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-54371 CY - Regensburg ER - TY - THES A1 - Hartweg, Johanna T1 - Analyse des Einflusses verschiedener Arbeitspunkte auf die wirkleistungsabhängige Spannungssensitivität an einem Mittelspannungsnetzknoten N2 - Im Rahmen dieser Arbeit erfolgt die Untersuchung der wirkleistungsabhängigen Spannungssensitivität an den Knoten eines Mittelspannungsnetzstranges. Hierfür wird eine Reihe von Arbeitspunkten durch die Variation der Wirkleistungsentnahmen bzw. Einspeisungen an den Netzknoten sowie des Verschiebungsfaktors und der Spannungssollwertvorgabe am Bilanzknoten erzeugt. Die Ergebnisse zeigen eine direkte Abhängigkeit von der Spannung des untersuchten Netzknotens. Hierbei steigt die Sensitivität bei fallenden Spannungswerten. Diese können sowohl durch Wirk- und Blindleistungsbelastungen als auch durch eine veränderte Referenzspannung am Umspannwerk bedingt werden. Darüber hinaus liegt eine Beeinflussung durch die Wirkleistungsbelastung und deren Verteilung über den Netzstrang hinweg vor. Je höher die Belastung der Leitung bis zum Knoten der Flexibilität ausfällt sowie je stärker sich die Last hin zu diesem Punkt verlagert, desto höher ist die Sensitivität. Dies gilt ebenfalls für Arbeitspunkte mit gleichbleibender Spannung in den betrachteten Knoten. Des Weiteren wird die Anpassung eines multiplen linearen Regressionsmodells vorgenommen. Dieses ermöglicht eine Abschätzung der Sensitivitätswerte durch die Kenntnis einiger, die Belastungssituation des Netzes bestimmender Parameter. KW - Netzmodell KW - Sensitivitätsanalyse KW - Arbeitspunktabhängigkeit Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-55648 CY - Regensburg ER - TY - RPRT A1 - Geiss, Florian A1 - Liedl, Lucia A1 - Thalhammer, Florian A1 - Mauderer, Johannes A1 - Meier, Maximilian A1 - Geitner, Florian A1 - Bindl, Jakob A1 - Belz, Reinhold ED - Meier, Hans ED - Niemetz, Michael ED - Fuhrmann, Thomas ED - Reindl, Andrea T1 - FMS-BERICHTE WINTERSEMESTER 2022/23 BT - Seminar zu aktuellen Themen der Elektro- und Informationstechnik N2 - Dieser Bericht entstand auf Initiative der Studierenden des Masterstudiengangs Elektro- und Informationstechnik (MEI)“, die an der Pflichtlehrveranstaltung „Forschungsmethoden und Seminar (FMS)“ im Wintersemester 2022/23 teilnahmen. Diese Lehrveranstaltung hat das Ziel, systematisch an das wissenschaftliche Arbeiten, speziell die Wissenschaftskommunikation, heranzuführen. Daher war geeignete Literatur zu einem individuellen Thema zu recherchieren, Veröffentlichungen auf ihre Relevanz hin zu beurteilen und letztendlich eine eigene Ausarbeitung basierend auf der Literaturrecherche zu erarbeiten und diese in einem Vortrag zu präsentieren. Parallel dazu erfolgte im Theorieteil die entsprechende Hinführung zu den verschiedenen Elementen der Wissenschaftskommunikation: • Bedeutung der Wissenschaftskommunikation für die Arbeit der Ingenieure in Forschung und Entwicklung • Literaturrecherche, Suchmaschinen, Sichtung und Analyse vorhandener Publikationen, Bewertung der Qualität aufgefundener Fachliteratur, Auswahl geeigneter Materialien für die eigene Arbeit • Aufbereitung und Darstellung der recherchierten technischer Inhalte in Form einer seitenanzahlbegrenzten wissenschaftlichen Ausarbeitung • Einhalten formaler Randbedingungen bzgl. Strukturierung, einschl. Bildnachweise und Zitationsstile • Peer-review-Prozess bei wertschätzender Beurteilung der Leistung anderer • Publikumsangepasstes Aufbereiten komplexer fachlicher Inhalte mit hochschulöffentlicher Präsentation der Ergebnisse • Führen mündlicher wissenschaftlicher Diskurse Nachdem die Masterstudierenden in der Regel über noch keine eigene wissenschaftliche Forschungserfahrung bzw. -inhalte verfügen, lag der wählbare Schwerpunkt der Literatursuche auf der Bearbeitung von vorgegeben aktuellen technischen oder gesellschaftspolitischen Forschungsthemen. T3 - Forschungsmethoden-Seminar - 5 KW - Elektrotechnik KW - Informationstechnik KW - Angewandte Wissenschaften KW - Literaturrecherche Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-60324 CY - Regensburg ER - TY - CHAP A1 - Monkman, Gareth J. A1 - Böse, Holger A1 - Ermert, Helmut A1 - Klein, Dagmar A1 - Freimuth, Herbert A1 - Baumann, Míchael A1 - Egersdörfer, Stefan A1 - Bruhns, Otto T. A1 - Meier, Alexander A1 - Raja, Kashif ED - Nerlich, Michael ED - Schächinger, Ulrich T1 - Technologies for Haptic Systems in Telemedicine T2 - Integration of Health Telematics into Medical Practice N2 - The ability to image the elastic properties of tissue is potentially useful in a variety of applications. The field of elastic imaging has grown in response to the Potential use of such information in medical diagnosis. Real time ultrasound elastography represents a recent development in determining strain and elasticity distributions. Nevertheless, commonly used imaging techniques rely on the interpretation of two dimensional visual data displayed on a video screen. In reality however, physicians often prefer tactile exploration making the simultaneous portrayal of both video and haptic information most desirable. Since the 1970's many alphanumeric to tactile data conversion methods have been investigated, mainly with the ultimate aim of assisting the blind. More recently, interest has been directed toward the display of pictures on haptically explorable surfaces - Tactile imaging. Such a system would allow surgeons to examine hard sectors contained within soft tissue, and thereby assist in operations held remotely. The expansion of ultrasound elastography to 3D formats would mean the ability to haptically explore regions of the body normally inaccessible to human hands. For three-dimensional imaging the acquisition of sequential tomographic slices using Elastography, combined with image segmentation, enables the reconstruction, quantification and visualisation of tumour volumes. In a collaborative project between four research Institutes, the aim is to produce a prototype three dimensional tactile displays comprising electrically switchable micromachined cells, whose mechanical moduli are governed by phase changes experienced by electrorheological and/or magnetorheological fluids. This will be integrated with a sensory ultrasonic elastography in order to present the human fingers with controllable surfaces capable of emulating biological tissue, muscle and bone. Y1 - 2003 U6 - https://doi.org/10.3233/978-1-60750-941-7-83 SP - 83 EP - 93 PB - IOS Press ER - TY - JOUR A1 - Böse, Holger A1 - Baumann, Michael A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Tunayar, A. A1 - Freimuth, Herbert A1 - Ermert, Helmut A1 - Khaled, W. T1 - A new ER fluid based haptic actuator system for virtual reality JF - International journal of modern physics / B Condensed matter physics, statistical physics N2 - The concept and some steps in the development of a new actuator system which enables the haptic perception of mechanically inhomogeneous virtual objects are introduced. The system consists of a two-dimensional planar array of actuator elements containing an electrorheological (ER) fluid. When a user presses his fingers onto the surface of the actuator array, he perceives locally variable resistance forces generated by vertical pistons which slide in the ER fluid through the gaps between electrode pairs. The voltage in each actuator element can be individually controlled by a novel sophisticated switching technology based on optoelectric gallium arsenide elements. The haptic information which is represented at the actuator array can be transferred from a corresponding sensor system based on ultrasonic elastography. The combined sensor-actuator system may serve as a technology platform for various applications in virtual reality, like telemedicine where the information on the consistency of tissue of a real patient is detected by the sensor part and recorded by the actuator part at a remote location. Y1 - 2005 U6 - https://doi.org/10.1142/9789812702197_0129 [Titel anhand dieser DOI in Citavi-Projekt übernehmen] VL - 19 IS - 7-9 SP - 1628 EP - 1634 PB - World Scientific Publ. ER - TY - JOUR A1 - Monkman, Gareth J. A1 - Egersdörfer, Stefan A1 - Meier, Alexander A1 - Böse, Holger A1 - Baumann, Michael A1 - Ermert, Helmut A1 - Kahled, W. A1 - Freimuth, Herbert T1 - Technologies for Haptic Displays in Teleoperation JF - Industrial Robot N2 - Since the 1960s many alphanumeric to tactile data conversion methods have been investigated, mainly with the ultimate aim of assisting the blind. More recently, interest has been directed toward the display of pictures on haptically explorable surfaces – tactile imaging – for a range of medical, remote sensing and entertainment purposes. This paper examines the technologies which have been utilised for haptically explorable tactile displays over the past three decades, focussing on those which appear commercially viable in the immediate future. Y1 - 2003 U6 - https://doi.org/10.1108/01439910310506792 SN - 0143-991x VL - 30 IS - 6 SP - 525 EP - 530 PB - Emerald ER - TY - CHAP A1 - Kahled, W. A1 - Reichling, S. A1 - Bruhns, Otto T. A1 - Böse, Holger A1 - Baumann, Michael A1 - Egersdörfer, Stefan A1 - Klein, Dagmar A1 - Tunayer, A. A1 - Freimuth, Herbert A1 - Lorenz, A. A1 - Pessavento, A. A1 - Ermert, Helmut ED - Westwood, James D. ED - Haluck, Randy S. T1 - Palpation Imaging using a Haptic System for Virtual Reality applications in Medicine T2 - Medicine meets virtual reality 12 Y1 - 2004 SP - 147 EP - 153 PB - IOS Press ER - TY - JOUR A1 - Böse, Holger A1 - Monkman, Gareth J. A1 - Freimuth, Herbert A1 - Tunayar, A. A1 - Khaled, W. A1 - Baumann, Michael A1 - Egersdörfer, Stefan A1 - Ermert, Helmut T1 - A new haptic sensor-actuator system based on electrorheological fluids JF - Actuator 2004 : 9th International Conference on New Actuators & 3rd International Exhibition on Smart Actuators and Drive Systems ; Bremen, Germany, 14 - 16 June 2004 Y1 - 2004 PB - HVG Hanseatische Veranstaltungs-GmbH CY - Bremen ER - TY - CHAP A1 - Böse, Holger A1 - Monkman, Gareth J. A1 - Freimuth, Herbert A1 - Tunayar, A. A1 - Ermert, Helmut A1 - Khaled, W. A1 - Baumann, Michael A1 - Egersdörfer, Stefan T1 - A new ER fluid based haptic actuator system for virtual reality T2 - Proceedings of the Ninth International Conference Electrorheological Fluids and Magnetorheological Suspensions (ERMR 2004) : Beijing, China, 29 August - 3 September 2004 Y1 - 2004 SP - 889 EP - 895 PB - World Scientific CY - Singapore ER - TY - GEN A1 - Reuter, Rebecca A1 - Langer, Thomas A1 - Hauser, Florian A1 - Muckelbauer, Daniel A1 - Gegenfurtner, Andreas T1 - Automatic generation of areas of interest in eye tracking: The case of software engineering T2 - Earli Book of Abstracts Y1 - 2019 UR - https://earli.org/sites/default/files/2019-09/BOA-2019.pdf PB - RWTH Aachen ER -