TY - JOUR A1 - Hartung, Frank A1 - Kampmann, M. A1 - Horn, U. A1 - Huschke, J. T1 - Delivery of Mobile TV services in 3G cellular networks / Kampmann, M. ; Hartung, F. ; Horn, U. ; Huschke, J. ; Lohmar, T. JF - Elektronische Medien : Vorträge des 12. Dortmunder Fernsehseminars vom 20. bis 21. März 2007 in Dortmund / Veranst.: ITG-FKTG-Fachbereich 3 ... Wiss. Tagungsleitung: R. Kays Y1 - 2007 SN - 978-3-8007-3019-3 N1 - ITG-Fachbericht ; 199 SP - 49 EP - 52 PB - VDE-Verl. CY - Berlin ER - TY - CHAP A1 - Schulte-Tigges, Joschua A1 - Matheis, Dominik A1 - Reke, Michael A1 - Walter, Thomas A1 - Kaszner, Daniel ED - Krömker, Heidi T1 - Demonstrating a V2X enabled system for transition of control and minimum risk manoeuvre when leaving the operational design domain T2 - HCII 2023: HCI in Mobility, Transport, and Automotive Systems N2 - Modern implementations of driver assistance systems are evolving from a pure driver assistance to a independently acting automation system. Still these systems are not covering the full vehicle usage range, also called operational design domain, which require the human driver as fall-back mechanism. Transition of control and potential minimum risk manoeuvres are currently research topics and will bridge the gap until full autonomous vehicles are available. The authors showed in a demonstration that the transition of control mechanisms can be further improved by usage of communication technology. Receiving the incident type and position information by usage of standardised vehicle to everything (V2X) messages can improve the driver safety and comfort level. The connected and automated vehicle’s software framework can take this information to plan areas where the driver should take back control by initiating a transition of control which can be followed by a minimum risk manoeuvre in case of an unresponsive driver. This transition of control has been implemented in a test vehicle and was presented to the public during the IEEE IV2022 (IEEE Intelligent Vehicle Symposium) in Aachen, Germany. KW - V2X KW - Transiton of Control KW - Minimum Risk Manoeuvre KW - Operational Design Domain KW - Connected Automated Vehicle Y1 - 2023 SN - 978-3-031-35677-3 (Print) SN - 978-3-031-35678-0 (Online) U6 - https://doi.org/10.1007/978-3-031-35678-0_12 N1 - 5th International Conference, MobiTAS 2023, Held as Part of the 25th HCI International Conference, HCII 2023, Copenhagen, Denmark, July 23–28, 2023. SP - 200 EP - 210 PB - Springer CY - Cham ER - TY - JOUR A1 - Prielmeier, Franz A1 - Radkowitsch, H. A1 - Lang, E. W. A1 - Lüdemann, H.-D. T1 - Density dependence of the molecular dynamics of fluid CH3F and CF3H studied by NMR / H. Radkowitsch, F. X. Prielmeier, E. W. Lang and H.-D. Lüdemann JF - Physica B+C. 139-140 (1986) Y1 - 1986 SN - 0921-4526 SP - 96 EP - 99 ER - TY - JOUR A1 - Stulpe, Werner T1 - Density Operator JF - Compendium of Quantum Physics : concepts, experiments, history and philosophy / Daniel Greenberger ... ed. Y1 - 2009 SN - 978-3-540-70622-9 SP - 166 EP - 169 PB - Springer CY - Berlin ER - TY - JOUR A1 - Mues genannt Koers, Lucas A1 - Prevost, David A1 - Paulßen, Elisabeth A1 - Hoehr, Cornelia T1 - Density reduction effects on the production of [11C]CO2 in Nb-body targets on a medical cyclotron N2 - Medical isotope production of 11C is commonly performed in gaseous targets. The power deposition of the proton beam during the irradiation decreases the target density due to thermodynamic mixing and can cause an increase of penetration depth and divergence of the proton beam. In order to investigate the difference how the target-body length influences the operation conditions and the production yield, a 12 cm and a 22 cm Nb-target body containing N2/O2 gas were irradiated using a 13 MeV proton cyclotron. It was found that the density reduction has a large influence on the pressure rise during irradiation and the achievable radioactive yield. The saturation activity of [11C]CO2 for the long target (0.083 Ci/μA) is about 10% higher than in the short target geometry (0.075 Ci/μA). Y1 - 2023 U6 - https://doi.org/10.1016/j.apradiso.2023.110911 VL - 199 IS - Art. 110911 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Förster, Arnold A1 - Indlekofer, K.M. A1 - Lüth, H. T1 - Density-matrix description of a quantum dot system with variable lateral confinement in the single-electron tunneling regime. Indlekofer, K.M.; Förster, A.; Lüth, H. JF - Physica B: Condensed Matter. 314 (2002), H. 1-4 Y1 - 2002 SN - 0921-4526 SP - 499 EP - 502 ER - TY - JOUR A1 - Digel, Ilya A1 - Kern, Inna A1 - Geenen, Eva-Maria A1 - Akimbekov, Nuraly S. T1 - Dental plaque removal by ultrasonic toothbrushes JF - dentistry journal N2 - With the variety of toothbrushes on the market, the question arises, which toothbrush is best suited to maintain oral health? This thematic review focuses first on plaque formation mechanisms and then on the plaque removal effectiveness of ultrasonic toothbrushes and their potential in preventing oral diseases like periodontitis, gingivitis, and caries. We overviewed the physical effects that occurred during brushing and tried to address the question of whether ultrasonic toothbrushes effectively reduced the microbial burden by increasing the hydrodynamic forces. The results of published studies show that electric toothbrushes, which combine ultrasonic and sonic (or acoustic and mechanic) actions, may have the most promising effect on good oral health. Existing ultrasonic/sonic toothbrush models do not significantly differ regarding the removal of dental biofilm and the reduction of gingival inflammation compared with other electrically powered toothbrushes, whereas the manual toothbrushes show a lower effectiveness. Y1 - 2020 U6 - https://doi.org/10.3390/dj8010028 SN - 2304-6767 VL - 8 IS - 28 SP - 1 EP - 13 PB - MDPI CY - Basel ER - TY - JOUR A1 - Defosse, Jerome A1 - Kleinschmidt, Joris A1 - Schmutz, Axel A1 - Loop, Torsten A1 - Staat, Manfred A1 - Gatzweiler, Karl-Heinz A1 - Wappler, Frank A1 - Schieren, Mark T1 - Dental strain on maxillary incisors during tracheal intubation with double-lumen tubes and different laryngoscopy techniques - a blinded manikin study JF - Journal of Cardiothoracic and Vascular Anesthesia KW - anaesthetic complications KW - dental trauma KW - difficult airway KW - double-lumen tube intubation KW - videolaryngoscopy Y1 - 2022 U6 - https://doi.org/10.1053/j.jvca.2022.02.017 SN - 1053-0770 VL - 36 IS - 8, Part B SP - 3021 EP - 3027 PB - Elsevier CY - New York, NY ER - TY - JOUR A1 - Kotter, Michael A1 - Riekert, L. A1 - Weyland, F. T1 - Deposition of ternary oxides as active components by impregnation of porous carriers JF - Preparation of Catalysts III : scientific bases for the preparation of heterogeneous catalysts ; proceedings of the Third International Symposium, Louvain-la-Neuve, September 6-9, 1982 / ed.: G. Poncelet ... - (Studies in surface science and catalysis ; 16) Y1 - 1983 SN - 0-444-42184-X N1 - International Symposium on the Scientific Bases for the Preparation of Heterogeneous Catalysts <3, 1982, Louvain-la-Neuve> SP - 521 EP - 530 PB - Elsevier CY - Amsterdam [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Rose, D. A1 - Pietsch, U. A1 - Metzger, H. T1 - Depth resolved investigation of the relaxation behaviour in strained GaInAs/GaAs superlattices / Rose, D. ; Pietsch, U. ; Förster, A. ; Metzger, H.... JF - Physica B: condensed matter. 198 (1994), H. 1-3 Y1 - 1994 SN - 0921-4526 SP - 256 EP - 258 ER - TY - JOUR A1 - Förster, Arnold A1 - Rose, D. A1 - Pietsch, U. A1 - Metzger, T. H. T1 - Depth resolved investigations of the relaxation behaviour in strained GaInAs/GaAs superlattices using grazing incidence X-ray diffraction / Rose, D. ; Pietsch, U. ; Förster, A. ; Metzger, T. H. JF - Nuclear instruments and methods in physics research / Section B, Beam interactions with materials and atoms. 97 (1995), H. 1-4 Y1 - 1995 SN - 0168-583X SP - 333 EP - 336 ER - TY - CHAP A1 - Schwarzer, Klemens T1 - Desalination systems with renewable energies T2 - DME Seminar Desalination and Renewable Energies : June 19 and 20 2008, Solar Institut Jülich / Deutsche Meerwasserentsalzung e.V. Y1 - 2008 SN - 978-3-86861-017-8 PB - DME CY - Duisburg ER - TY - JOUR A1 - Schmitz, Günter A1 - Damann, H. A1 - Schmit, H. J. T1 - Design and Analysis of a Waveguide Isolator with a Form-Birefringent Top Layer JF - ECOC '84 : Conference proceedings ; 10th European Conference on Optical Communication, September 3 - 6, 1984 Liederhalle Stuttgart, Federal Republic of Germany / Organized by Nachrichtentechn. Ges. im VDE (NTG). Y1 - 1984 SN - 3-8007-1383-7 SP - 42 PB - VDE-Verl. CY - Berlin [u.a.] ER - TY - JOUR A1 - Dieringer, Matthias A. A1 - Renz, Wolfgang A1 - Lindel, Tomasz D. A1 - Seifert, Frank A1 - Frauenrath, Tobias A1 - von Knobelsdorf-Brenkenhoff, Florian A1 - Waiczies, Helmar A1 - Hoffmann, Werner A1 - Rieger, Jan A1 - Pfeiffer, Harald A1 - Ittermann, Bernd A1 - Schulz-Menger, Jeanette A1 - Niendorf, Thoralf T1 - Design and application of a four-channel transmit/receive surface coil for functional cardiac imaging at 7T JF - Journal of Magnetic Resonance Imaging N2 - Purpose To design and evaluate a four-channel cardiac transceiver coil array for functional cardiac imaging at 7T. Materials and Methods A four-element cardiac transceiver surface coil array was developed with two rectangular loops mounted on an anterior former and two rectangular loops on a posterior former. specific absorption rate (SAR) simulations were performed and a Burn:x-wiley:10531807:media:JMRI22451:tex2gif-stack-1 calibration method was applied prior to obtain 2D FLASH CINE (mSENSE, R = 2) images from nine healthy volunteers with a spatial resolution of up to 1 × 1 × 2.5 mm3. Results Tuning and matching was found to be better than 10 dB for all subjects. The decoupling (S21) was measured to be >18 dB between neighboring loops, >20 dB for opposite loops, and >30 dB for other loop combinations. SAR values were well within the limits provided by the IEC. Imaging provided clinically acceptable signal homogeneity with an excellent blood-myocardium contrast applying the Burn:x-wiley:10531807:media:JMRI22451:tex2gif-stack-2 calibration approach. Conclusion A four-channel cardiac transceiver coil array for 7T was built, allowing for cardiac imaging with clinically acceptable signal homogeneity and an excellent blood-myocardium contrast. Minor anatomic structures, such as pericardium, mitral, and tricuspid valves and their apparatus, as well as trabeculae, were accurately delineated. Y1 - 2011 U6 - https://doi.org/10.1002/jmri.22451 SN - 1522-2586 VL - 33 IS - 3 SP - 736 EP - 741 PB - Wiley-Liss CY - New York ER - TY - JOUR A1 - Hoffstadt, Kevin A1 - Cheenakula, Dheeraja A1 - Nikolausz, Marcell A1 - Krafft, Simone A1 - Harms, Hauke A1 - Kuperjans, Isabel T1 - Design and construction of a new reactor for flexible biomethanation of hydrogen JF - Fermentation N2 - The increasing share of renewable electricity in the grid drives the need for sufficient storage capacity. Especially for seasonal storage, power-to-gas can be a promising approach. Biologically produced methane from hydrogen produced from surplus electricity can be used to substitute natural gas in the existing infrastructure. Current reactor types are not or are poorly optimized for flexible methanation. Therefore, this work proposes a new reactor type with a plug flow reactor (PFR) design. Simulations in COMSOL Multiphysics ® showed promising properties for operation in laminar flow. An experiment was conducted to support the simulation results and to determine the gas fraction of the novel reactor, which was measured to be 29%. Based on these simulations and experimental results, the reactor was constructed as a 14 m long, 50 mm diameter tube with a meandering orientation. Data processing was established, and a step experiment was performed. In addition, a kLa of 1 h−1 was determined. The results revealed that the experimental outcomes of the type of flow and gas fractions are in line with the theoretical simulation. The new design shows promising properties for flexible methanation and will be tested. KW - methanation KW - plug flow reactor KW - bubble column KW - bio-methane KW - power-to-gas Y1 - 2023 U6 - https://doi.org/10.3390/fermentation9080774 SN - 2311-5637 N1 - The article belongs to the Special Issue Fermentation Processes: Modeling, Optimization and Control VL - 9 IS - 8 SP - 1 EP - 16 PB - MDPI CY - Basel ER - TY - CHAP A1 - Butenweg, Christoph A1 - Rajan, Sreelakshmy T1 - Design and construction techniques of AAC masonry buildings in earthquakes regions T2 - 10 years Xella research in Building Materials : Symposium on the 4th and 5th of September, Potsdam 2014 Y1 - 2014 ER - TY - CHAP A1 - Elgamal, Abdelrahman A1 - Heuermann, Holger T1 - Design and Development of a Hot S-Parameter Measurement System for Plasma and Magnetron Applications T2 - Proceedings of the 2020 German Microwave Conference N2 - This paper presents the design, development and calibration procedures of a novel hot S-parameter measurement system for plasma and magnetron applications with power level up to 6 kW. Based on a vector network analyzer, a power amplifier and two directional couplers, the input matching hotS 11 and transmission hotS 21 of the device under test are measured at 2.45 GHz center frequency and 300MHz bandwidth, while the device is driven by the magnetron. This measurement system opens a new horizon to develop many new industrial applications such as microwave plasma jets, dryer systems, dryers and so forth. Furthermore, the developing, controlling and monitoring a 2kW 2.45GHz plasma jet and a dryer system using the measurement system are presented and explained. Y1 - 2020 SN - 978-3-9820397-1-8 N1 - 13th German Microwave Conference 2020, March 09–11, Cottbus SP - 124 EP - 127 PB - IEEE CY - New York, NY ER - TY - CHAP A1 - Sadeghfam, Arash A1 - Sadeghi-Ahangar, A. A1 - Elgamal, Abdelrahman A1 - Heuermann, Holger T1 - Design and Development of a Novel Self-Igniting Microwave Plasma Jet for Industrial Applications T2 - IEEE MTT-S International Microwave Symposium Digest Y1 - 2019 SN - 978-172811309-8 SP - 63 EP - 66 ER - TY - BOOK A1 - Sander, Volker T1 - Design and evaluation of a bandwidth broker that provides network quality of service for grid applications Y1 - 2003 SN - 3-00-010002-4 N1 - NIC series ; 16 ; Zugl. Aachen, Techn. Hochsch., Diss., 2002 PB - John von Neumann Institute for Computing (NIC) CY - Jülich ER - TY - CHAP A1 - Terstegge, Andreas A1 - Weber, S. A1 - Herzog, H. A1 - Müller-Gärtner, H. W. A1 - Halling, H. T1 - Design and implementation aspects of a 3D reconstruction algorithm for the Jülich TierPET system T2 - 1997 International Meeting on Fully ThreeDimensional Image Reconstruction in Radiology and Nuclear Medicine : 3D97 Y1 - 1997 SP - 170 EP - 173 ER -