TY - GEN A1 - Pershina, K. V. A1 - Savelev, Dmitrii V. A1 - Glavan, Gašper A1 - Chashin, Dmitri V. A1 - Belyaeva, Inna A. A1 - Fetisov, Leonid Y. A1 - Shamonin (Chamonine), Mikhail T1 - The voltage response of a structure comprising a magnetoactive-elastomer cylinder and a piezoelectric material to magnetic field step excitations T2 - The 4th International Baltic Conference on Magnetism (IBCM 2021) : Svetlogorsk, Russia August 29 - September 2, 2021 : Book of Abstracts Y1 - 2021 UR - http://smba.science/wp-content/uploads/2021/10/IBCM-2021-Book-of-Abstracts-5.pdf SP - 182 PB - Immanuel Kant Baltic Federal University, Kaliningrad, Russia ER - TY - GEN A1 - Sterner, Michael A1 - Schumm, Leon T1 - Netzpuffer – Speicher & Kraftwerke als virtuelle Leitungen für mehr Versorgungssicherheit und EE-Integration in Nord und Süd T2 - 7. Smart-Grid-Fachtagung WAGO, Hannover, 29. Sept. 2021 KW - Stromspeicher KW - Batterien KW - Netzpuffer KW - Stromnetz Y1 - 2021 ER - TY - RPRT A1 - Sterner, Michael A1 - Schumm, Leon A1 - Rank, Daniel A1 - Hofrichter, Andreas T1 - Intelligente Netzpuffer : Abschlussbericht (24.01.2021) KW - Stromspeicher KW - Batterien KW - Netzpuffer KW - Stromnetz Y1 - 2021 N1 - unveröffentlichter Abschlussbericht ER - TY - THES A1 - Thema, Martin Jiří T1 - Process optimization for microbial biosynthesis of methane in a trickle-bed reactor for Power-to-Gas applications: the ORBIT-process N2 - This thesis identifes Power-to-Gas in general and biological CO2-methanation in trickle-bed reactors in particular as promising energy storage and sector coupling technology ready for application but with further optimization potential. It reviews the global status and development of Power-to-Gas technology as to be of exponentially growing importance in energy systems changing towards renewable power supply and analyzes optimization and standardization potential for biological CO2-methanation in tricklebed reactors deriving an improved methanation process. Process development and experiments on hydrodynamical and biological improvement of such a setup were performed, leading to an optimized combination of a packing and microorganisms in pure culture embedded in the new ORBIT-process. First experimental results give evidence of successful application of different optimization approaches implemented in a technical center scale setup. N2 - Die vorliegende Arbeit analysiert Status und Entwicklung der Power-to-Gas-Technologien Wasserelektrolyse und CO2-Methanisierung hinsichtlich Kosten, technischer Parameter und energiepolitischer Stellung in den wichtigsten Einsatzländern. So konnte ein exponentieller Trend in zugebauter Anlagenleistung sowie deutliche Investitionskostendegressionen für alle untersuchten Technologien abgeleitet werden. Die Arbeit entwickelt Optimierungs- und Standardisierungsansätze für die biologische CO2-Methanisierung im Rieselbett-Reaktor, welche als eine der vielversprechenden Power-to-Gas-Anwendungen identifiziert wird. Mit Versuchen zur Verbesserung der hydrodynamischen Bedingungen im Reaktor sowie zu einer optimierten Verbindung aus Packungselementen und Mikroorganismen in Reinkultur wird daraus der neue ORBIT-Prozess abgeleitet. Erste Versuchsergebnisse aus einer realisierten Anlage im Technikumsmaßstab deuten hin auf die erfolgreiche Umsetzung der identifzierten Optimierungsansätze. T2 - Prozessoptimierung zur biologischen CO2-Methanisierung im Rieselbettreaktor f¨ur Power-to Gas-Anwendungen: der ORBIT-Prozess KW - CO2-methanation KW - ORBIT-process KW - Power-to-Gas KW - biological methanation KW - biomethanation KW - trickle-bed reactor Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-150567 SN - 978-3-8440-7656-1 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 - JOUR A1 - Malz, Sebastian A1 - Krenkel, Walter A1 - Steffens, Oliver T1 - Infrared Reflective Wall Paint in Buildings: Energy Saving Potentials and Thermal Comfort JF - Energy and Buildings N2 - The reduction of the energy demand of existing buildings is the main objective of building refurbishment. Managing the heat radiation properties of the wall construction is a possible way to develop highly effective and resource efficient insulation materials and concepts. The application of infrared reflective wall paints and coatings has been studied since the latter half of the 20th century. A brief review of the literature gives an account of the current research status. One has to realise that the conclusions are not uniformly consistent but depend strongly on the specific boundary conditions and investigated parameters. The study presented here discusses the usage of infrared reflective wall paint in conjunction with heat insulation for historic brick masonry. The possible energy savings are linked to the resulting thermal comfort. We identify critical parameters that must be taken into account when using infrared reflective wall paint and derive recommended design rules for the refurbishment of such building types. The findings prove that infrared reflective wall paint can decrease heat losses by 18% and up to 22% if comfort conditions are considered. Increasing energy savings can also cause the negative effect of high radiative asymmetry. Thus, each configuration must be observed in detail. KW - Infrared-reflective KW - Wall paint KW - Coating KW - Existing buildings KW - Radiative asymmetry KW - Energy efficiency Y1 - 2020 U6 - https://doi.org/10.1016/j.enbuild.2020.110212 SN - 0378-7788 VL - 224 IS - October PB - Elsevier ER - TY - GEN A1 - Schwanzer, Peter A1 - Dietrich, Markus A1 - Gaderer, Matthias A1 - Rabl, Hans-Peter T1 - Detektion unterschiedlicher Medien in Gasoline Particulate Filter (GPF) mit Hilfe eines Radio-Frequenz (RF-) Sensors T2 - Bayerische Wissenschaftsforum - BayWISS 2020 Y1 - 2020 UR - https://mobilitaet-verkehr.baywiss.de/fileadmin/verbundkolleg/mobilitaet-verkehr/poster/Schwanzer_Peter.pdf ER - TY - GEN A1 - Oetjen, Arne A1 - Rieger, Anna A1 - Rabl, Hans-Peter A1 - van de Par, Steven T1 - The role of dissonance in the sound quality perception for electric vehicles T2 - The Journal of the Acoustical Society of America N2 - Tonal components can be regarded as one of the most relevant components for interior sound quality of electric vehicles, especially at low speeds. Sources for these tones are for example the vehicles' drivetrains but also other technical components. Depending on the driving conditions, due to the interaction of various dominant sources, audible tone complexes can occur. Similar to musical intervals, the different frequency ratios within these complexes can result in consonant or dissonant sensations. The strength of this sensation does not only depend on the frequency relation of the tones but also on their relative levels. In this study, different musical intervals were subjectively rated in terms of their specific consonant or dissonant character. Using an adaptive procedure, sound pairs, each consisting of a two-tone signal, where adjusted to equal dissonance by varying the level of the second tone of one of the two-tone signals. Using the same paradigm, also pairs of equal vehicle sound quality were obtained. With these results, it is possible to quantify dissonance, and theinfluence of dissonance on sound quality expressed in terms of level differences of two-tone signals. These results can help to make the concept of dissonance more useful for sound-engineering applications. Y1 - 2020 U6 - https://doi.org/10.1121/1.5147356 VL - 148 IS - 4 PB - Acoustical Society of America ER - TY - CHAP A1 - Frauenschläger, Tobias A1 - Dentgen, Manuel A1 - Mottok, Jürgen T1 - Systemarchitektur eines Sicherheitsmoduls im Energiesektor T2 - Tagungsband 2. Symposium Elektronik und Systemintegration ESI 2020: "Intelligente Systeme und ihre Komponenten: Forschung und industrielle Anwendung" N2 - Aufgrund der immer weiter anwachsenden Vernetzung der Stromnetze wird die Kommunikation zwischen der Leitstelle des Energieversorgers und den Infrastrukturkomponenten innerhalb eines Umspannwerks immer bedeutsamer. Dabei werden sowohl Steuerbefehle als auch Daten für Überwachungsfunktionen übertragen. In den aktuellen Netzwerkarchitekturen findet diese Kommunikation ohne eine kryptografische Absicherung statt, was einen Angriffspunkt für gezielte Attacken und damit eine potenzielle Gefährdung der Energieversorgung darstellt. Um solchen Angriffen in Zukunft entgegenzuwirken, wird das ES³M-Sicherheitsmodul entwickelt. Dieses soll in das Netzwerk zwischen den beiden Kommunikationspartnern eingesetzt werden und so den Datenverkehr absichern. Mithilfe einer Bedrohungsanalyse wurden Anforderungen abgeleitet, die neben kryptografischen Maßnahmen auch Themen wie funktionale Sicherheit und Langlebigkeit umfassen. Um diese zu erfüllen, wurde eine spezielle Systemarchitektur auf Basis einer Aufgabenteilung entworfen. Diese Architektur und korrespondierende Designentscheidungen werden präsentiert. Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:860-opus4-2092 N1 - Die Konferenzveröffentlichung erschien im Band "Fachbeiträge 2. Symposium Elektronik und Systemintegration ESI 2020" mit dem Titel „Intelligente Systeme und ihre Komponenten: Forschung und industrielle Anwendung“. Die Fachtagung, geplant für den 01. April 2020 an der Hochschule Landshut, wurde aufgrund der Corona-Pandemie abgesagt, die eingereichten Fachbeiträge im Band veröffentlicht. Hrsg.: Artem Ivanov, Marc Bicker und Peter Patzelt. Hochschule Landshut, 2020, ISBN 978-3-9818439-4-1 SP - 29 EP - 38 CY - Landshut ER -