TY - JOUR A1 - Fabo, Sabine ED - Mohr, Klaus T1 - Im Reich der Sinne JF - Die Dreiundzwanzigste (Boxhorn ; 23) N2 - Nach einer halben Stunde Vorführzeit im Hörsaal hört man das Zuschlagen der Tür, die ersten genervten Zuschauer fliehen. In den nächsten 30 Minuten werden ihnen noch viele folgen, bis letztlich wenige Interessierte bis zum Abspann des Films bleiben. KW - Pornographie KW - Zuschauer Y1 - 2011 SN - 1864-2535 SP - 42 EP - 44 PB - Fachhochschule CY - Aachen ER - TY - JOUR A1 - Gaiser, Lorenz ED - Mohr, Klaus T1 - Rapidshare Kinocharts JF - Idiopendent Lyfestile (Boxhorn ; 27) Y1 - 2013 SN - 1864-2535 SP - 150 EP - 153 PB - FH CY - Aachen ER - TY - JOUR A1 - Kob, Malte A1 - Frauenrath, Tobias T1 - A system for parallel measurement of glottis opening and larynx position JF - Biomedical Signal Processing and Control N2 - The simultaneous assessment of glottal dynamics and larynx position can be beneficial for the diagnosis of disordered voice or speech production and swallowing. Up to now, methods either concentrate on assessment of the glottis opening using optical, acoustical or electrical (electroglottography, EGG) methods, or on visualisation of the larynx position using ultrasound, computer tomography or magnetic resonance imaging techniques. The method presented here makes use of a time-multiplex measurement approach of space-resolved transfer impedances through the larynx. The fast sequence of measurements allows a quasi simultaneous assessment of both larynx position and EGG signal using up to 32 transmit–receive signal paths. The system assesses the dynamic opening status of the glottis as well as the vertical and back/forward motion of the larynx. Two electrode-arrays are used for the measurement of the electrical transfer impedance through the neck in different directions. From the acquired data the global and individual conductivity is calculated as well as a 2D point spatial representation of the minimum impedance. The position information is shown together with classical EGG signals allowing a synchronous visual assessment of glottal area and larynx position. A first application to singing voice analysis is presented that indicate a high potential of the method for use as a non-invasive tool in the diagnosis of voice, speech, and swallowing disorders. KW - EGG KW - Transfer impedance KW - Tomography KW - Larynx position KW - Voice assessment Y1 - 2009 U6 - https://doi.org/10.1016/j.bspc.2009.03.004 SN - 1746-8108 VL - 4 IS - 3 SP - 221 EP - 228 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Ayala, Rafael Ceja A1 - Harris, Isaac A1 - Kleefeld, Andreas T1 - Direct sampling method via Landweber iteration for an absorbing scatterer with a conductive boundary JF - Inverse Problems and Imaging N2 - In this paper, we consider the inverse shape problem of recovering isotropic scatterers with a conductive boundary condition. Here, we assume that the measured far-field data is known at a fixed wave number. Motivated by recent work, we study a new direct sampling indicator based on the Landweber iteration and the factorization method. Therefore, we prove the connection between these reconstruction methods. The method studied here falls under the category of qualitative reconstruction methods where an imaging function is used to recover the absorbing scatterer. We prove stability of our new imaging function as well as derive a discrepancy principle for recovering the regularization parameter. The theoretical results are verified with numerical examples to show how the reconstruction performs by the new Landweber direct sampling method. Y1 - 2024 U6 - https://doi.org/10.3934/ipi.2023051 SN - 1930-8337 SN - 1930-8345 (eISSN) VL - 18 IS - 3 SP - 708 EP - 729 PB - AIMS CY - Springfield ER - TY - JOUR A1 - Pasteur, Aline A1 - Tippkötter, Nils A1 - Kampeis, Percy A1 - Ulber, Roland T1 - Optimization of high gradient magnetic separation filter units for the purification of fermentation products JF - IEEE TRANSACTIONS ON MAGNETICS N2 - High gradient magnetic separation (HGMS) has been established since the early 1970s. A more recent application of these systems is the use in bioprocesses. To integrate the HGMS in a fermentation process, it is necessary to optimize the separation matrix with regard to the magnetic separation characteristics and permeability of the non-magnetizable components of the fermentation broth. As part of the work presented here, a combined fluidic and magnetic force finite element model simulation was created using the software COMSOL Multiphysics and compared with separation experiments. Finally, as optimal lattice orientation of the separation matrix, a transversal rhombohedral arrangement was defined. The high suitability of the new filter matrix has been verified by separation experiments. Y1 - 2014 U6 - https://doi.org/10.1109/TMAG.2014.2325535 SN - 0018-9464 N1 - Article Sequence Number: 5000607 INSPEC Accession Number: 14663042 VL - 50 IS - 10 SP - Artikel 5000607 PB - IEEE CY - New York, NY ER - TY - JOUR A1 - Golland, Alexander T1 - Umsetzung der Datenschutz-Grundverordnung – Neue Herausforderungen für Unternehmen JF - NWB Rechnungswesen - BBK N2 - Nach einem intensiven politischen Diskurs wurde im vergangenen Jahr die Datenschutz-Grundverordnung (DSGVO) verabschiedet. Die DSGVO ersetzt zum 25.5.2018 die bislang geltende, aus dem Jahre 1995 stammende Datenschutz-Richtlinie 95/46/EG. Die Novellierung des Datenschutzrechts bringt zahlreiche neue Anforderungen mit sich. Unternehmen sind daher gezwungen, sich auf die Änderungen einzustellen, ihre datenschutzrelevanten Prozesse im Hinblick auf die neuen Anforderungen zu überprüfen und bis zum Mai 2018 an der DSGVO auszurichten. Der Beitrag gibt einen kurzen Überblick über die zentralen Aspekte der Datenschutzreform und die damit einhergehenden Herausforderungen für Unternehmen. Y1 - 2018 SN - 0340-9848 IS - 1 SP - 35 EP - 39 ER - TY - JOUR A1 - Bialonski, Stephan A1 - Ansmann, Gerrit A1 - Kantz, Holger T1 - Data-driven prediction and prevention of extreme events in a spatially extended excitable system JF - Physical Review E Y1 - 2015 U6 - https://doi.org/10.1103/PhysRevE.92.042910 SN - 2470-0053 VL - 92 IS - 4 SP - 042910 ER - TY - JOUR A1 - Wolf, Martin R. A1 - Foltz, Christian A1 - Killich, Stephan A1 - Schmidt, Ludger T1 - Task and Information Modeling for Cooperative Work / Foltz, Christian ; Killich, Stephan ; Wolf, Martin ; Schmidt, Ludger ; Luczak, Holger JF - Systems, social and internationalization design aspects of human-computer interaction / ed. by Michael J. Smith, Gavriel Salvendy Vol. 2 Y1 - 2001 SN - 0-8058-3608-X N1 - International Conference on Human Computer Interaction 9, 2001, New Orleans, La. SP - 172 EP - 176 PB - - ER - TY - JOUR A1 - Staat, Manfred T1 - Versagenswahrscheinlichkeit der Primärkreisdruckumschließung eines HTR-Moduls zur Prozeßwärmegewinnung unter Störfallbedingungen bei verschiedenen Versagensmoden Y1 - 1991 N1 - 17. MPA-Seminar : Sicherheit und Verfügbarkeit in der Anlagentechnik mit dem Schwerpunkt Kerntechnik, Stuttgart (1991), 22.1-22.20 ER - TY - JOUR A1 - Breuß, Michael A1 - Kleefeld, Andreas T1 - Implicit monotone difference methods for scalar conservation laws with source terms JF - Acta Mathematica Vietnamica N2 - In this article, a concept of implicit methods for scalar conservation laws in one or more spatial dimensions allowing also for source terms of various types is presented. This material is a significant extension of previous work of the first author (Breuß SIAM J. Numer. Anal. 43(3), 970–986 2005). Implicit notions are developed that are centered around a monotonicity criterion. We demonstrate a connection between a numerical scheme and a discrete entropy inequality, which is based on a classical approach by Crandall and Majda. Additionally, three implicit methods are investigated using the developed notions. Next, we conduct a convergence proof which is not based on a classical compactness argument. Finally, the theoretical results are confirmed by various numerical tests. KW - Entropy solution KW - Source term KW - Monotone methods KW - Implicit methods KW - Finite difference methods KW - Conservation laws Y1 - 2020 U6 - https://doi.org/10.1007/s40306-019-00354-1 SN - 2315-4144 N1 - Corresponding author: Andreas Kleefeld VL - 45 SP - 709 EP - 738 PB - Springer Singapore CY - Singapore ER - TY - JOUR A1 - Golland, Alexander T1 - Anforderungen an Transfer Impact Assessments bei Datentransfers in unsichere Drittländer JF - DSB Datenschutz-Berater Y1 - 2021 SN - 0170-7256 VL - 45 IS - 7-8 SP - 229 EP - 231 PB - DFV Mediengruppe CY - Frankfurt a.M. ER - TY - JOUR A1 - Allefeld, Carsten A1 - Bialonski, Stephan T1 - Detecting synchronization clusters in multivariate time series via coarse-graining of Markov chains JF - Physical Review E Y1 - 2007 U6 - https://doi.org/10.1103/PhysRevE.76.066207 SN - 2470-0053 VL - 76 IS - 6 SP - 066207 ER - TY - JOUR A1 - Laack, Walter van T1 - Entstehen und Funktion von Bewusstsein: Immaterielle Einflussnahme JF - Deutsches Ärzteblatt. 97 (2000), H. 9 Y1 - 2000 SN - 0012-1207 SP - A-540 ER - TY - JOUR A1 - Ulber, Roland A1 - Tippkötter, Nils T1 - Nitratfreie Molke JF - Rundschau für Fleischhygiene und Lebensmittelüberwachung Y1 - 2009 IS - 4 SP - 150 EP - 152 ER - TY - JOUR A1 - Heuermann, Holger A1 - Sadeghfam, Arash T1 - Novel balanced inductor for compact differential systems / Sadeghfam, Arash; Heuermann, Holger JF - Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association Y1 - 2004 SN - 1-580-53992-0 N1 - European Microwave Conference ; (34, 2004, Amsterdam) ; European Microwave Week ; (7, 2004, Amsterdam) SP - 709 EP - 712 PB - Horizon House Publ. CY - London ER - TY - JOUR A1 - Laack, Walter van T1 - Juvenile Osteochondronekrosen - Wesen und mögliche Entstehungsursachen JF - Zeitschrift für Allgemeinmedizin ; ZFA. 60 (1984) Y1 - 1984 SN - 0341-9835 SP - 1432 ER - TY - JOUR A1 - Wiesen, Sebastian A1 - Tippkötter, Nils A1 - Muffler, Kai A1 - Suck, Kirstin A1 - Sohling, Ulrich A1 - Ruf, Friedrich A1 - Ulber, Roland T1 - Adsorption of fatty acids to layered double hydroxides in aqueous systems JF - Adsorption N2 - Due to their anion exchange characteristics, layered double hydroxides (LDHs) are suitable for the detoxification of aqueous, fatty acid containing fermentation substrates. The aim of this study is to examine the adsorption mechanism, using crude glycerol from plant oil esterification as a model system. Changes in the intercalation structure in relation to the amount of fatty acids adsorbed are monitored by X-ray diffraction and infra-red spectroscopy. Additionally, calcination of LDH is investigated in order to increase the binding capacity for fatty acids. Our data propose that, at ambient temperature, fatty acids can be bound to the hydrotalcite by adsorption or in addition by intercalation, depending on fatty acid concentration. The adsorption of fatty acids from crude glycerol shows a BET-like behavior. Above a fatty acid concentration of 3.5 g L−1, intercalation of fatty acids can be shown by the appearance of an increased interlayer spacing. This observation suggests a two phase adsorption process. Calcination of LDHs allows increasing the binding capacity for fatty acids by more than six times, mainly by reduction of structural CO32−. Y1 - 2015 VL - 21 IS - 6-7 SP - 459 EP - 466 PB - Springer CY - Berlin ER - TY - JOUR A1 - Pham, Phu Tinh A1 - Staat, Manfred T1 - An Upper Bound Algorithm for Limit and Shakedown Analysis of Bounded Linearly Kinematic Hardening Structures JF - Limit State of Materials and Structures : Direct Methods 2. Saxcé, Géry de (Hrsg.) Y1 - 2013 SN - 978-94-007-5424-9 SP - 71 EP - 87 PB - Springer CY - Dordrecht ER - TY - JOUR A1 - Heuermann, Holger A1 - Schiek, Burkhard T1 - Error Corrected Impedance Measurements with a Network Analyzer Y1 - 1994 N1 - 1994 Conference on Precision Electromagnetic Measurements digest : 27 June - 1 July 1994, Boulder, Colorado, USA / Organized by National Institute of Standards and Technology. Ed. by Edie DeWeese SP - 125 EP - 126 ER - TY - JOUR A1 - Golland, Alexander T1 - Weckruf für deutsche Großunternehmen? – Der neue Entwurf des IT-Sicherheitsgesetz 2.0 JF - K&R Kommunikation & Recht Y1 - 2020 SN - 1434-6354 VL - 23 IS - 7-8 SP - I PB - DFV Mediengruppe CY - Frankfurt a.M. ER -