TY - JOUR A1 - Grundmann, Jan Thimo A1 - Bauer, Waldemar A1 - Biele, Jens A1 - Boden, Ralf Christian A1 - Ceriotti, Matteo A1 - Cordero, Federico A1 - Dachwald, Bernd A1 - Dumont, Etienne A1 - Grimm, Christian D. A1 - Hercik, David T1 - Capabilities of Gossamer-1 derived small spacecraft solar sails carrying Mascot-derived nanolanders for in-situ surveying of NEAs JF - Acta Astronautica Y1 - 2019 U6 - https://doi.org/10.1016/j.actaastro.2018.03.019 SN - 0094-5765 VL - 156 IS - 3 SP - 330 EP - 362 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Haj-Ayed, Anis A1 - Kusterer, Karsten A1 - Funke, Harald A1 - Keinz, Jan A1 - Bohn, Dieter E. T1 - CFD based exploration of the dry-low-NOx hydrogen micromix combustion technology at increased energy densities JF - Propulsion and Power Research KW - Micromix combustion KW - Hydrogen gas turbine KW - Hydrogen combustion KW - High hydrogen combustion KW - Dry-low-NOx (DLN) combustion Y1 - 2017 SN - 2212-540X U6 - https://doi.org/10.1016/j.jppr.2017.01.005 VL - 6 IS - 1 SP - 15 EP - 24 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Haj-Ayed, Anis A1 - Kusterer, Karsten A. A1 - Funke, Harald A1 - Keinz, Jan A1 - Striegan, Constantin A1 - Bohn, Dieter E. T1 - Experimental and numerical investigations of the dry-low-NOx hydrogen micromix combustion chamber of an industrial gas turbine JF - Propulsion and power research Y1 - 2015 U6 - https://doi.org/10.1016/j.jppr.2015.07.005 SN - 2212-540X VL - Vol. 4 IS - Iss. 3 SP - 123 EP - 131 ER - TY - JOUR A1 - Haj-Ayed, Anis A1 - Kusterer, Karsten, A. A1 - Funke, Harald A1 - Keinz, Jan A1 - Striegan, Constantin A1 - Bohn, Dieter E. T1 - Improvement study for the dry-low-NOx hydrogen micromix combustion technology JF - Propulsion and power research Y1 - 2015 U6 - https://doi.org/10.1016/j.jppr.2015.07.003 SN - 2212-540X VL - Vol. 4 IS - Iss. 3 SP - 132 EP - 140 ER - TY - JOUR A1 - Edip, Kemal A1 - Sesov, V.latko A1 - Butenweg, Christoph A1 - Bojadjieva, Julijana T1 - Development of coupled numerical model for simulation of multiphase soil JF - Computers and Geotechnics N2 - In this paper, a coupled multiphase model considering both non-linearities of water retention curves and solid state modeling is proposed. The solid displacements and the pressures of both water and air phases are unknowns of the proposed model. The finite element method is used to solve the governing differential equations. The proposed method is demonstrated through simulation of seepage test and partially consolidation problem. Then, implementation of the model is done by using hypoplasticity for the solid phase and analyzing the fully saturated triaxial experiments. In integration of the constitutive law error controlling is improved and comparisons done accordingly. In this work, the advantages and limitations of the numerical model are discussed. Y1 - 2018 U6 - https://doi.org/10.1016/j.compgeo.2017.08.016 SN - 0266-352X VL - 96 SP - 118 EP - 131 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Seynnes, Olivier R. A1 - Bojsen-Møller, Jens A1 - Albracht, Kirsten A1 - Arndt, Anton A1 - Cronin, Neil J. A1 - Finni, Taija A1 - Magnusson, Stig Peter T1 - Ultrasound-based testing of tendon mechanical properties: a critical evaluation JF - Journal of Applied Physiology Y1 - 2015 U6 - https://doi.org/10.1152/japplphysiol.00849.2014 SN - 8750-7587 VL - 118 IS - 2 SP - 133 EP - 141 ER - TY - JOUR A1 - Bohn, Dieter E. A1 - Funke, Harald A1 - Heuer, Tom A1 - Bütikofer, J. T1 - Numerical and experimental investigations of the influence of different swirl-ratios on the temperature streak equalization in a 4-stage turbine JF - ASME Turbo Expo 2000 ; Munich, May 8-11 2000 Y1 - 2000 N1 - ASME-paper ; 2000-GT-250 CY - Munich ER - TY - JOUR A1 - Enning, Manfred A1 - Bollig, Alexander A1 - Mann, S. A1 - Kaierle, Stefan T1 - Modellgestützte Prädiktive Regelung beim Laserstrahlschweißen / Bollig, A. ; Mann, S. ; Enning, M. ; Kaierle, S. JF - Automatisierungstechnische Praxis : atp. 43 (2001), H. 7 Y1 - 2001 SN - 0178-2320 SP - 35 EP - 39 ER - TY - JOUR A1 - Bohn, Dieter E. A1 - Funke, Harald T1 - Experimental investigations into the nonuniform flow in a 4-stage turbine with special focus on the flow equalization in the first turbine stage JF - ASME TURBO EXPO, Proceedings of the ASME Turbo Expo, 2003 Y1 - 2003 SN - 0-7918-3689-4 N1 - ASME TURBO EXPO 2003, Proceedings, Vol. 6: Turbomachinery, Pt. A, Atlanta, US, Jun 16-19, 2003 SP - 281 EP - 289 ER - TY - JOUR A1 - Bohrn, Ulrich A1 - Stütz, Evamaria A1 - Fuchs, Karen A1 - Fleischer, M. A1 - Schöning, Michael Josef A1 - Wagner, P. T1 - Monitoring of irritant gas using a whole-cell-based sensor system JF - Sensors and Actuators B: Chemical N2 - Cell-based sensors for the detection of gases have long been underrepresented, due to the cellular requirement of being cultured in a liquid environment. In this work we established a cell-based gas biosensor for the detection of toxic substances in air, by adapting a commercial sensor chip (Bionas®), previously used for the measurement of pollutants in liquids. Cells of the respiratory tract (A549, RPMI 2650, V79), which survive at a gas phase in a natural context, are used as biological receptors. The physiological cell parameters acidification, respiration and morphology are continuously monitored in parallel. Ammonia was used as a highly water-soluble model gas to test the feasibility of the sensor system. Infrared measurements confirmed the sufficiency of the medium draining method. This sensor system provides a basis for many sensor applications such as environmental monitoring, building technology and public security. Y1 - 2012 U6 - https://doi.org/10.1016/j.snb.2012.05.088 SN - 0925-4005 VL - 175 SP - 208 EP - 217 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Enning, Manfred A1 - Bollig, Alexander A1 - Mann, S. A1 - Kaierle, Stefan T1 - Autonome Produktionszelle für das Laserstrahlschweißen / Bollig, A. ; Mann, S. ; Enning, M. ; Kaierle, S. ; Abel, D. ; Poprawe, R. JF - Automation und Information in Wirtschaft und Gesellschaft : Kongress Baden-Baden, 3. und 4. Juni 2003 / VDI-VDE-Gesellschaft Mess- und Automatisierungstechnik Y1 - 2003 SN - 3-18-091756-3 N1 - GMA-Kongress ; 2003 ; VDI-Berichte 1756 SP - 73 EP - 82 PB - VDI-Verl. CY - Düsseldorf ER - TY - JOUR A1 - Bohrn, Ulrich A1 - Stütz, Evamaria A1 - Fuchs, Karen A1 - Fleischer, M. A1 - Schöning, Michael Josef A1 - Wagner, P. T1 - Air Quality Monitoring using a Whole-Cell based Sensor System JF - Procedia Engineering. 25 (2011) Y1 - 2011 SN - 1877-7058 N1 - EurosensorsXXV ; Proc. Eurosensors XXV, September 4-7, 2011, Athens, Greece SP - 1421 EP - 1424 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Bohn, Dieter E. A1 - Funke, Harald A1 - Sürken, Norbert A1 - Kreitmeier, F. T1 - Numerical and experimental investigations on endwall contouring in a four-stage turbine JF - ASME Turbo Expo Land Sea & Air 2001 : June 4 - 8, 2001, New Orleans, Louisiana / IGTI, International Gas Turbine Institute. American Society of Mechanical Engineers. International Gas Turbine Institute .. Y1 - 2001 SN - 0-7918-3528-6 N1 - ASME-Paper 2001-GT-0481 PB - ASME CY - New York, NY ER - TY - JOUR A1 - Enning, Manfred A1 - Mann, S. A1 - Bollig, Alexander A1 - Kaierle, Stefan T1 - Autonomous Production Cell for Laser Beam Welding / Mann S. ; Bollig, A. ; Kaierle, S. ; Abel, D. ; Poprawe, R. Y1 - 2003 SN - 0912035757 N1 - ICALEO 2003, Florida ; Laser Materials Processing Conference ; (2003, Jacksonville, Fla.) ; ICALEO ; (22, 2003, Jacksonville, Fla.) PB - LIA CY - Orlando, Fla ER - TY - JOUR A1 - Bohn, Dieter E. A1 - Funke, Harald A1 - Gier, Jochen T1 - Numerical and Experimental Investigations on the Flow in a 4-Stage Turbine with Special Focus on the Development of a Radial Temperature Streak JF - ASME Turbo Expo 1999, Indianapolis, USA, 1999 Y1 - 1999 N1 - ASME-Paper 99-GT-027 ER - TY - JOUR A1 - Gong, Jing A1 - Raut, Amod A1 - Pelzer, Marcel A1 - Hüning, Felix T1 - Marking-based perpendicular parking slot detection algorithm using LiDAR sensors JF - Vehicles N2 - The emergence of automotive-grade LiDARs has given rise to new potential methods to develop novel advanced driver assistance systems (ADAS). However, accurate and reliable parking slot detection (PSD) remains a challenge, especially in the low-light conditions typical of indoor car parks. Existing camera-based approaches struggle with these conditions and require sensor fusion to determine parking slot occupancy. This paper proposes a parking slot detection (PSD) algorithm which utilizes the intensity of a LiDAR point cloud to detect the markings of perpendicular parking slots. LiDAR-based approaches offer robustness in low-light environments and can directly determine occupancy status using 3D information. The proposed PSD algorithm first segments the ground plane from the LiDAR point cloud and detects the main axis along the driving direction using a random sample consensus algorithm (RANSAC). The remaining ground point cloud is filtered by a dynamic Otsu’s threshold, and the markings of parking slots are detected in multiple windows along the driving direction separately. Hypotheses of parking slots are generated between the markings, which are cross-checked with a non-ground point cloud to determine the occupancy status. Test results showed that the proposed algorithm is robust in detecting perpendicular parking slots in well-marked car parks with high precision, low width error, and low variance. The proposed algorithm is designed in such a way that future adoption for parallel parking slots and combination with free-space-based detection approaches is possible. This solution addresses the limitations of camera-based systems and enhances PSD accuracy and reliability in challenging lighting conditions. KW - point cloud processing KW - RANSAC KW - line detection KW - automated parking KW - LiDAR KW - parking slot detection Y1 - 2024 U6 - https://doi.org/10.3390/vehicles6040083 SN - 2624-8921 N1 - Corresponding author: Felix Hüning VL - 6 IS - 4 SP - 1717 EP - 1729 PB - MDPI CY - Basel ER - TY - JOUR A1 - Böhnisch, Nils A1 - Braun, Carsten A1 - Marzocca, Pierre A1 - Muscarello, Vincenzo T1 - Impact of aerodynamic interactions on aeroelastic stability of wing-propeller systems JF - Applied Sciences N2 - This paper presents initial findings from aeroelastic studies conducted on a wing-propeller model, aimed at evaluating the impact of aerodynamic interactions on wing flutter mechanisms and overall aeroelastic performance. The flutter onset is assessed using a frequency-domain method. Mid-fidelity tools based on the time-domain approach are then exploited to account for the complex aerodynamic interaction between the propeller and the wing. Specifically, the open-source software DUST and MBDyn are leveraged for this purpose. The investigation covers both windmilling and thrusting conditions. During the trim process, adjustments to the collective pitch of the blades are made to ensure consistency across operational points. Time histories are then analyzed to pinpoint flutter onset, and corresponding frequencies and damping ratios are identified. The results reveal a marginal destabilizing effect of aerodynamic interaction on flutter speed, approximately 5%. Notably, the thrusting condition demonstrates a greater destabilizing influence compared to the windmilling case. These comprehensive findings enhance the understanding of the aerodynamic behavior of such systems and offer valuable insights for early design predictions and the development of streamlined models for future endeavors. Y1 - 2024 U6 - https://doi.org/10.3390/app14198709 SN - 2076-3417 N1 - This article belongs to the Special Issue "Advances in Unsteady Aerodynamics and Aeroelasticity" VL - 14 IS - 19 PB - MDPI CY - Basel ER - TY - JOUR A1 - Hüning, Felix A1 - Heuermann, Holger A1 - Wache, Franz-Josef T1 - Wireless CAN without WLAN or Bluetooth JF - CAN Newsletter N2 - In two developed concepts, dual-mode radio enables CAN participants to be integrated wirelessly into a CAN network. Constructed from a few components, a protocol-free, real-time transmission and thus transparent integration into CAN is provided. Y1 - 2018 IS - December SP - 44 EP - 46 PB - CAN in Automation GmbH CY - Nürnberg ER - TY - JOUR A1 - Hüning, Felix A1 - Backes, Andreas T1 - Direct observation of large Barkhausen jump in thin Vicalloy wires JF - IEEE Magnetics Letters Y1 - 2020 SN - 1949-307X U6 - https://doi.org/10.1109/LMAG.2020.3046411 VL - 11 IS - Art. 2506504 SP - 1 EP - 4 PB - IEEE CY - New York, NY ER - TY - JOUR A1 - Bohn, Dieter E. A1 - Funke, Harald A1 - Gier, Jochen T1 - Temperature jet development in a cross-over channel JF - Third European Conference on Turbomachinery - fluid dynamics and thermodynamics : : 2 - 5 March 1999, Royal National Hotel, London, UK / organized by the Energy Transfer and Thermofluid Mechanics Group of the Institution of Mechanical Engineers (IMechE); with support and sponsorship from European Commission / Vol. B. Y1 - 1999 N1 - C557/158/99 ; IMechE conference transactions 1999-1B SP - 671 EP - 680 PB - Professional Engineering Publ. CY - Bury St. Edmunds ER - TY - JOUR A1 - Hüning, Felix T1 - Hart im Nehmen : Low-Voltage-Powermosfets mit Super-Junction-1-Technologie optimieren JF - Elektronik-Journal Y1 - 2009 SN - 0013-5674 VL - 44 IS - 12 SP - 36 EP - 38 PB - Österreichischer Wirtschaftsverlag GmbH CY - Wien ER - TY - JOUR A1 - Cheilytko, Andrii A1 - Alexopoulos, Spiros A1 - Pozhuyev, Andriy A1 - Kaufhold, Oliver T1 - An analytical approach to power optimization of concentrating solar power plants with thermal storage JF - Solar N2 - This paper deals with the problem of determining the optimal capacity of concentrated solar power (CSP) plants, especially in the context of hybrid solar power plants. This work presents an innovative analytical approach to optimizing the capacity of concentrated solar plants. The proposed method is based on the use of additional non-dimensional parameters, in particular, the design factor and the solar multiple factor. This paper presents a mathematical optimization model that focuses on the capacity of concentrated solar power plants where thermal storage plays a key role in the energy source. The analytical approach provides a more complete understanding of the design process for hybrid power plants. In addition, the use of additional factors and the combination of the proposed method with existing numerical methods allows for more refined optimization, which allows for the more accurate selection of the capacity for specific geographical conditions. Importantly, the proposed method significantly increases the speed of computation compared to that of traditional numerical methods. Finally, the authors present the results of the analysis of the proposed system of equations for calculating the levelized cost of electricity (LCOE) for hybrid solar power plants. The nonlinearity of the LCOE on the main calculation parameters is shown KW - analytical approach KW - optimization model KW - solar multiple factor KW - design factor KW - hybrid solar power plants KW - thermal storage KW - concentrated solar power Y1 - 2024 U6 - https://doi.org/10.3390/solar4030024 SN - 2673-9941 VL - 4 IS - 3 SP - 509 EP - 525 PB - MDPI CY - Basel ER - TY - JOUR A1 - Kleefeld, Andreas A1 - Zimmermann, M. ED - Constanda, Christian ED - Bodmann, Bardo E.J. ED - Harris, Paul J. T1 - Computing Elastic Interior Transmission Eigenvalues JF - Integral Methods in Science and Engineering N2 - An alternative method is presented to numerically compute interior elastic transmission eigenvalues for various domains in two dimensions. This is achieved by discretizing the resulting system of boundary integral equations in combination with a nonlinear eigenvalue solver. Numerical results are given to show that this new approach can provide better results than the finite element method when dealing with general domains. Y1 - 2022 SN - 978-3-031-07171-3 U6 - https://doi.org/10.1007/978-3-031-07171-3_10 N1 - Corresponding author: Andreas Kleefeld SP - 139 EP - 155 PB - Birkhäuser CY - Cham ER - TY - JOUR A1 - Ferrein, Alexander A1 - Schiffer, Stefan A1 - Booysen, Tracy A1 - Stopforth, Riaan T1 - Why it is harder to run RoboCup in South Africa: Experiences from German South African collaborations JF - International Journal of Advanced Robotic Systems N2 - Robots are widely used as a vehicle to spark interest in science and technology in learners. A number of initiatives focus on this issue, for instance, the Roberta Initiative, the FIRST Lego League, the World Robot Olympiad and RoboCup Junior. Robotic competitions are valuable not only for school learners but also for university students, as the RoboCup initiative shows. Besides technical skills, the students get some project exposure and experience what it means to finish their tasks on time. But qualifying students for future high-tech areas should not only be for students from developed countries. In this article, we present our experiences with research and education in robotics within the RoboCup initiative, in Germany and South Africa; we report on our experiences with trying to get the RoboCup initiative in South Africa going. RoboCup has a huge support base of academic institutions in Germany; this is not the case in South Africa. We present our ‘north–south’ collaboration initiatives in RoboCup between Germany and South Africa and discuss some of the reasons why we think it is harder to run RoboCup in South Africa. Y1 - 2016 U6 - https://doi.org/10.1177/1729881416662789 SN - 1729-8806 VL - 13 IS - 5 SP - 1 EP - 13 ER - TY - JOUR A1 - Biselli, Manfred A1 - Schmidt, Sebastian A1 - Büchs, Jochen A1 - Born, Christoph T1 - A new correlation for the wall-to-fluid mass transfer in liquid-sol fluidized beds / Schmidt, S. ; Büchs, J. ; Born, C. ; Biselli, M. JF - Chemical Engineering Science. 54 (1999), H. 6 Y1 - 1999 SN - 0009-2509 SP - 829 EP - 839 ER - TY - JOUR A1 - Biselli, Manfred A1 - Born, Christoph A1 - Thömmes, J. A1 - Wandrey, C. T1 - An approach to integrated antibody production: Coupling of fluidized bed cultivation and fluidized bed adsorption / Born, C. ; Thömmes, J. ; Biselli, M. ; Wandrey, C. ; Kula, M.-R. JF - Bioprocess Engineering. 15 (1996), H. 1 Y1 - 1996 SN - 1615-7591 SP - 21 EP - 29 ER - TY - JOUR A1 - Biselli, Manfred A1 - Born, Christoph A1 - Wandrey, C. T1 - Oxygen transfer from the gasphase to the immobilized cells in membrane aerated fluidized beds / Born, C. ; Biselli, M. ; Wandrey, C. JF - Animal cell technology : basic & applied aspects : proceedings of the Eighth Annual Meeting of the Japanese Association for Animal Cell Technology, Iizuka, Fukuoka, Japan, November 6-10, 1995 / edited by K. Funatsu, Y. Shirai, and T. Matsushita Y1 - 1995 SN - 0-7923-4486-3 N1 - Japanese Association for Animal Cell Technology. ; Meeting ; <8 ; 1995 : ; Iizuka-shi, Japan> SP - 83 EP - 87 PB - Kluwer Acad. Press CY - Boston ER - TY - JOUR A1 - Biselli, Manfred A1 - Thömmes, J. A1 - Born, Christoph A1 - Wandrey, C. T1 - Purification of monoclonal antibodies by fluidized bed adsorption / Thömmes, J. ; Born, C. Biselli, M. ; Wandrey, C. ; Kula, M.-R. JF - Animal cell technology : developments towards the 21st century / edited by E. C. Beuvery Y1 - 1995 SN - 0-7923-3736-0 N1 - Meeting "Animal Cell Technology, Developments towards the 21st Century" ; <1994.09.12-16 : ; Veldhoven> SP - 515 EP - 519 PB - Kluwer Acad. Press CY - Dordrecht ER - TY - JOUR A1 - Biselli, Manfred A1 - Born, Christoph A1 - Wandrey, C. T1 - Production of monoclonal antibodies in a pilot scale fluidized bed bioreactor / Born, C.; Biselli, M.; Wandrey, C. JF - Animal cell technology : developments towards the 21st century / edited by E. C. Beuvery Y1 - 1995 SN - 0-7923-3736-0 N1 - Meeting "Animal Cell Technology, Developments towards the 21st Century" ; <1994.09.12-16 : ; Veldhoven> SP - 515 EP - 519 PB - Kluwer Acad. Press CY - Dordrecht ER - TY - JOUR A1 - Grundmann, Reinhard A1 - Bommes, Leonhard A1 - Reinartz, Dieter T1 - Auswahl, Bemessung und Beurteilung eines Radialventilators hohen Wirkungsgrades - Teil 2 JF - HLH - Zeitschrift für Heizung, Lüftung, Klimatechnik, Haustechnik. 49 (1998), H. 7 Y1 - 1998 SN - 0017-9906 SP - 44 EP - 50 ER - TY - JOUR A1 - Grundmann, Reinhard A1 - Bommes, Leonhard A1 - Dieter, Reinartz T1 - Auswahl, Bemessung und Beurteilung eines Radialventilators hohen Wirkungsgrades - Teil 1 JF - HLH - Zeitschrift für Heizung, Lüftung, Klimatechnik, Haustechnik. 49 (1998), H. 5 Y1 - 1998 SN - 0017-9906 SP - 28 EP - 37 ER - TY - JOUR A1 - Murib, Mohammed Sharif A1 - Yeap, Weng Siang A1 - Eurlings, Y. A1 - Grinsven, Bart van A1 - Boyen, Hans-Gerd A1 - Conings, Bert A1 - Michiels, Luc A1 - Ameloot, Marcel A1 - Carleer, R. A1 - Warmer, Johannes A1 - Kaul, Peter Michael A1 - Haenen, Ken A1 - Schöning, Michael Josef A1 - de Ceuninck, Ward A. A1 - Wagner, Patrick Hermann T1 - Heat-transfer based characterization of DNA on synthetic sapphire chips JF - Sensors and Actuators B: Chemical N2 - In this study, we show that synthetic sapphire (Al₂O₃), an established implant material, can also serve as a platform material for biosensors comparable to nanocrystalline diamond. Sapphire chips, beads, and powder were first modified with (3-aminopropyl) triethoxysilane (APTES), followed by succinic anhydride (SA), and finally single-stranded probe DNA was EDC coupled to the functionalized layer. The presence of the APTES-SA layer on sapphire powders was confirmed by thermogravimetric analyis and Fourier-transform infrared spectroscopy. Using planar sapphire chips as substrates and X-ray photoelectron spectroscopy (XPS) as surface-sensitive tool, the sequence of individual layers was analyzed with respect to their chemical state, enabling the quantification of areal densities of the involved molecular units. Fluorescence microscopy was used to demonstrate the hybridization of fluorescently tagged target DNA to the probe DNA, including denaturation- and re-hybridization experiments. Due to its high thermal conductivity, synthetic sapphire is especially suitable as a chip material for the heat-transfer method, which was employed to distinguish complementary- and non-complementary DNA duplexes containing single-nucleotide polymorphisms. These results indicate that it is possible to detect mutations electronically with a chemically resilient and electrically insulating chip material. Y1 - 2016 U6 - https://doi.org/10.1016/j.snb.2016.02.027 SN - 0925-4005 VL - 230 IS - 230 SP - 260 EP - 271 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Baumann, Marcus A1 - Lancelot, Christiane A1 - Brandini, Frederico Pereira A1 - Sakshaug, Egil A1 - John, David Michael T1 - The taxonomic identity of the cosmopolitan prymnesiophyte Phaeocystis, a morphological and ecophysiological approach / Baumann, M.E.M. ; Lancelot, C. ; Brandini, F. ; Sakshaug, E. ; John M. JF - Journal of Marine Systems. 5 (1994), H. 1 Y1 - 1994 SN - 0924-7963 SP - 5 EP - 22 ER - TY - JOUR A1 - Baumann, Marcus A1 - Brandini, Frederico Pereira A1 - Staubes, Regina T1 - The influence of light and temperature on carbonspecific DMS release by cultures of Phaeocystis antarctica and three antarctic diatoms / Baumann, Marcus E.M. ; Brandini, Frederico ; Staubes, Regina JF - Marine Chemistry. 45 (1994), H. 1-2 Y1 - 1994 SN - 0304-4203 SP - 129 EP - 136 ER - TY - JOUR A1 - Ziemons, Karl A1 - Herzog, Hans A1 - Bosetti, P. A1 - Feinendegen, L. E. T1 - Iterative image reconstruction with weighted pixel contribution to projection elements JF - European Journal of Nuclear Medicine Y1 - 1992 SN - 1619-7089 N1 - Abstracts of the European Association of Nuclear Medicine Congress 23–26 August 1992 Lisboa, Portugal ; V143-2 VL - 19 IS - 8 SP - 588 EP - 588 ER - TY - JOUR A1 - Höttges, Jörg A1 - Koch, Hans-Georg A1 - Bosbach, Ralf T1 - Automatische Konstruktion von Teileinzugsgebieten für die Kanalnetzberechnung JF - Korrespondenz Abwasser : KA ; Informationsbl. für d. Abwasserwesen ; Wasser, Abwasser, Abfall / Gesellschaft zur Förderung der Abwassertechnik. 42 (1995), H. 12 Y1 - 1995 SN - 0341-1478 ER - TY - JOUR A1 - Bäcker, Matthias A1 - Raue, Markus A1 - Schusser, Sebastian A1 - Jeitner, C. A1 - Breuer, Lars A1 - Wagner, P. A1 - Poghossian, Arshak A1 - Förster, Arnold A1 - Mang, Thomas A1 - Schöning, Michael Josef T1 - Microfluidic chip with integrated microvalves based on temperature- and pH-responsive hydrogel thin films JF - Physica Status Solidi (a) N2 - Two types of microvalves based on temperature-responsive poly(N-isopropylacrylamide) (PNIPAAm) and pH-responsive poly(sodium acrylate) (PSA) hydrogel films have been developed and tested. The PNIPAAm and PSA hydrogel films were prepared by means of in situ photopolymerization directly inside the fluidic channel of a microfluidic chip fabricated by combining Si and SU-8 technologies. The swelling/shrinking properties and height changes of the PNIPAAm and PSA films inside the fluidic channel were studied at temperatures of deionized water from 14 to 36 °C and different pH values (pH 3–12) of Titrisol buffer, respectively. Additionally, in separate experiments, the lower critical solution temperature (LCST) of the PNIPAAm hydrogel was investigated by means of a differential scanning calorimetry (DSC) and a surface plasmon resonance (SPR) method. Mass-flow measurements have shown the feasibility of the prepared hydrogel films to work as an on-chip integrated temperature- or pH-responsive microvalve capable to switch the flow channel on/off. Y1 - 2012 U6 - https://doi.org/10.1002/pssa.201100763 SN - 1862-6319 VL - 209 IS - 5 SP - 839 EP - 845 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Bäcker, Matthias A1 - Kramer, F. A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Bratov, Andrey V. A1 - Abramova, N. A1 - Schöning, Michael Josef T1 - Planar and 3D interdigitated electrodes for biosensing applications: The impact of a dielectric barrier on the sensor properties JF - Physica Status Solidi (A) - Applications and Materials Science N2 - Planar and three-dimensional (3D) interdigitated electrodes (IDE) with electrode digits separated by an insulating barrier of different heights were electrochemically characterized and compared in terms of their sensing properties. Due to the impact of the surface resistance, both types of IDE structures display a non-linear behavior in low-ionic strength solutions. The experimental data were fitted to an electrical equivalent circuit and interpreted taking into account the surface-charge-governed properties. The effect of a charged polyelectrolyte layer electrostatically assembled onto the sensor surface on the surface resistance in solutions with different KCl concentration is studied. In case of the same electrode footprint, 3D-IDEs show a larger cell constant and a higher sensitivity to molecular adsorption than that of planar IDEs. The obtained results demonstrate the potential of 3D-IDEs as a new transducer structure for a direct label-free sensing of charged molecules. Y1 - 2014 U6 - https://doi.org/10.1002/pssa.201330416 SN - 1521-396X (E-Journal); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print) VL - 211 IS - 6 SP - 1357 EP - 1363 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Kloock, Joachim P. A1 - Moreno, Lia A1 - Bratov, Andrey V. A1 - Huachupoma, S. A1 - Xu, Jingjuan A1 - Wagner, Torsten A1 - Yoshinobu, Tatsuo A1 - Ermolenko, Y. E. A1 - Vlasov, Yu G. G. A1 - Schöning, Michael Josef T1 - PLD-prepared cadmium sensors based on chalcogenide glasses —ISFET, LAPS and μISE semiconductor structures JF - Sensors and Actuators B: Chemical. 118 (2006), H. 1-2 Y1 - 2006 SN - 0925-4005 N1 - Eurosensors XIX - Eurosensors XIX - The 19th European Conference on Solid-State Transducers SP - 149 EP - 155 ER - TY - JOUR A1 - Ketelhut, Maike A1 - Göll, Fabian A1 - Braunstein, Björn A1 - Albracht, Kirsten A1 - Abel, Dirk T1 - Comparison of different training algorithms for the leg extension training with an industrial robot JF - Current Directions in Biomedical Engineering N2 - In the past, different training scenarios have been developed and implemented on robotic research platforms, but no systematic analysis and comparison have been done so far. This paper deals with the comparison of an isokinematic (motion with constant velocity) and an isotonic (motion against constant weight) training algorithm. Both algorithms are designed for a robotic research platform consisting of a 3D force plate and a high payload industrial robot, which allows leg extension training with arbitrary six-dimensional motion trajectories. In the isokinematic as well as the isotonic training algorithm, individual paths are defined i n C artesian s pace by sufficient s upport p oses. I n t he i sotonic t raining s cenario, the trajectory is adapted to the measured force as the robot should only move along the trajectory as long as the force applied by the user exceeds a minimum threshold. In the isotonic training scenario however, the robot’s acceleration is a function of the force applied by the user. To validate these findings, a simulative experiment with a simple linear trajectory is performed. For this purpose, the same force path is applied in both training scenarios. The results illustrate that the algorithms differ in the force dependent trajectory adaption. KW - Rehabilitation Technology and Prosthetics KW - Surgical Navigation and Robotics Y1 - 2018 U6 - https://doi.org/10.1515/cdbme-2018-0005 SN - 2364-5504 VL - 4 IS - 1 SP - 17 EP - 20 PB - De Gruyter CY - Berlin ER - TY - JOUR A1 - Ketelhut, Maike A1 - Brügge, G. M. A1 - Göll, Fabian A1 - Braunstein, Bjoern A1 - Albracht, Kirsten A1 - Abel, Dirk T1 - Adaptive iterative learning control of an industrial robot during neuromuscular training JF - IFAC PapersOnLine N2 - To prevent the reduction of muscle mass and loss of strength coming along with the human aging process, regular training with e.g. a leg press is suitable. However, the risk of training-induced injuries requires the continuous monitoring and controlling of the forces applied to the musculoskeletal system as well as the velocity along the motion trajectory and the range of motion. In this paper, an adaptive norm-optimal iterative learning control algorithm to minimize the knee joint loadings during the leg extension training with an industrial robot is proposed. The response of the algorithm is tested in simulation for patients with varus, normal and valgus alignment of the knee and compared to the results of a higher-order iterative learning control algorithm, a robust iterative learning control and a recently proposed conventional norm-optimal iterative learning control algorithm. Although significant improvements in performance are made compared to the conventional norm-optimal iterative learning control algorithm with a small learning factor, for the developed approach as well as the robust iterative learning control algorithm small steady state errors occur. KW - Iterative learning control KW - Robotic rehabilitation KW - Adaptive control Y1 - 2020 U6 - https://doi.org/10.1016/j.ifacol.2020.12.741 SN - 2405-8963 VL - 53 IS - 2 SP - 16468 EP - 16475 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Herssens, Nolan A1 - Cowburn, James A1 - Albracht, Kirsten A1 - Braunstein, Bjoern A1 - Cazzola, Dario A1 - Colyer, Steffi A1 - Minetti, Alberto E. A1 - Pavei, Gaspare A1 - Rittweger, Jörn A1 - Weber, Tobias A1 - Green, David A. ED - Cattaneo, Luigi T1 - Movement in low gravity environments (MoLo) programme – the MoLo-L.O.O.P. study protocol JF - PLOS ONE / Public Library of Science N2 - Exposure to prolonged periods in microgravity is associated with deconditioning of the musculoskeletal system due to chronic changes in mechanical stimulation. Given astronauts will operate on the Lunar surface for extended periods of time, it is critical to quantify both external (e.g., ground reaction forces) and internal (e.g., joint reaction forces) loads of relevant movements performed during Lunar missions. Such knowledge is key to predict musculoskeletal deconditioning and determine appropriate exercise countermeasures associated with extended exposure to hypogravity. Y1 - 2022 U6 - https://doi.org/10.1371/journal.pone.0278051 SN - 1932-6203 VL - 17 IS - 11 PB - Plos CY - San Francisco ER - TY - JOUR A1 - Richter, Charlotte A1 - Braunstein, Bjoern A1 - Stäudle, Benjamin A1 - Attias, Julia A1 - Suess, Alexander A1 - Weber, Tobias A1 - Mileva, Katja N. A1 - Rittweger, Joern A1 - Green, David A. A1 - Albracht, Kirsten T1 - Gastrocnemius medialis contractile behavior is preserved during 30% body weight supported gait training JF - Frontiers in Sports and Active Living N2 - Rehabilitative body weight supported gait training aims at restoring walking function as a key element in activities of daily living. Studies demonstrated reductions in muscle and joint forces, while kinematic gait patterns appear to be preserved with up to 30% weight support. However, the influence of body weight support on muscle architecture, with respect to fascicle and series elastic element behavior is unknown, despite this having potential clinical implications for gait retraining. Eight males (31.9 ± 4.7 years) walked at 75% of the speed at which they typically transition to running, with 0% and 30% body weight support on a lower-body positive pressure treadmill. Gastrocnemius medialis fascicle lengths and pennation angles were measured via ultrasonography. Additionally, joint kinematics were analyzed to determine gastrocnemius medialis muscle–tendon unit lengths, consisting of the muscle's contractile and series elastic elements. Series elastic element length was assessed using a muscle–tendon unit model. Depending on whether data were normally distributed, a paired t-test or Wilcoxon signed rank test was performed to determine if body weight supported walking had any effects on joint kinematics and fascicle–series elastic element behavior. Walking with 30% body weight support had no statistically significant effect on joint kinematics and peak series elastic element length. Furthermore, at the time when peak series elastic element length was achieved, and on average across the entire stance phase, muscle–tendon unit length, fascicle length, pennation angle, and fascicle velocity were unchanged with respect to body weight support. In accordance with unchanged gait kinematics, preservation of fascicle–series elastic element behavior was observed during walking with 30% body weight support, which suggests transferability of gait patterns to subsequent unsupported walking. KW - AlterG KW - rehabilitation KW - gait KW - walking KW - ultrasound imaging KW - series elastic element behavior KW - muscle fascicle behavior KW - unloading Y1 - 2021 U6 - https://doi.org/10.3389/fspor.2020.614559 SN - 2624-9367 VL - 2021 IS - 2 PB - Frontiers CY - Lausanne ER - TY - JOUR A1 - Karamanidis, Kiros A1 - Albracht, Kirsten A1 - Braunstein, Bjoern A1 - Catala, Maria Moreno A1 - Goldmann, Jan-Peter A1 - Brüggemann, Gert-Peter T1 - Lower leg musculoskeletal geometry and sprint performance JF - Gait and Posture N2 - The purpose of this study was to investigate whether sprint performance is related to lower leg musculoskeletal geometry within a homogeneous group of highly trained 100-m sprinters. Using a cluster analysis, eighteen male sprinters were divided into two groups based on their personal best (fast: N = 11, 10.30 ± 0.07 s; slow: N = 7, 10.70 ± 0.08 s). Calf muscular fascicle arrangement and Achilles tendon moment arms (calculated by the gradient of tendon excursion versus ankle joint angle) were analyzed for each athlete using ultrasonography. Achilles tendon moment arm, foot and ankle skeletal geometry, fascicle arrangement as well as the ratio of fascicle length to Achilles tendon moment arm showed no significant (p > 0.05) correlation with sprint performance, nor were there any differences in the analyzed musculoskeletal parameters between the fast and slow sprinter group. Our findings provide evidence that differences in sprint ability in world-class athletes are not a result of differences in the geometrical design of the lower leg even when considering both skeletal and muscular components. Y1 - 2011 U6 - https://doi.org/10.1016/j.gaitpost.2011.03.009 SN - 0966-6362 VL - 34 IS - 1 SP - 138 EP - 141 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Ketelhut, Maike A1 - Kolditz, Melanie A1 - Göll, Fabian A1 - Braunstein, Bjoern A1 - Albracht, Kirsten A1 - Abel, Dirk T1 - Admittance control of an industrial robot during resistance training JF - IFAC-PapersOnLine N2 - Neuromuscular strength training of the leg extensor muscles plays an important role in the rehabilitation and prevention of age and wealth related diseases. In this paper, we focus on the design and implementation of a Cartesian admittance control scheme for isotonic training, i.e. leg extension and flexion against a predefined weight. For preliminary testing and validation of the designed algorithm an experimental research and development platform consisting of an industrial robot and a force plate mounted at its end-effector has been used. Linear, diagonal and arbitrary two-dimensional motion trajectories with different weights for the leg extension and flexion part are applied. The proposed algorithm is easily adaptable to trajectories consisting of arbitrary six-dimensional poses and allows the implementation of individualized trajectories. KW - Assistive technology KW - Rehabilitation engineering KW - Human-Computer interaction KW - Automatic control Y1 - 2019 U6 - https://doi.org/10.1016/j.ifacol.2019.12.102 SN - 2405-8963 N1 - 14th IFAC Symposium on Analysis, Design, and Evaluation of Human Machine Systems HMS 2019 Tallinn, Estonia, 16–91 September 2019 VL - 52 IS - 19 SP - 223 EP - 228 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Richter, Charlotte A1 - Braunstein, Bjoern A1 - Winnard, Andrew A1 - Nasser, Mona A1 - Weber, T. T1 - Human Biomechanical and Cardiopulmonary Responses to Partial Gravity – A Systematic Review JF - Frontiers in physiology Y1 - 2017 U6 - https://doi.org/10.3389/fphys.2017.00583 IS - 8, article 583 ER - TY - JOUR A1 - Bertz, Morten A1 - Schöning, Michael Josef A1 - Molinnus, Denise A1 - Homma, Takayuki T1 - Influence of temperature, light, and H₂O₂ concentration on microbial spore inactivation: in-situ Raman spectroscopy combined with optical trapping JF - Physica status solidi (a) applications and materials science N2 - To gain insight on chemical sterilization processes, the influence of temperature (up to 70 °C), intense green light, and hydrogen peroxide (H₂O₂) concentration (up to 30% in aqueous solution) on microbial spore inactivation is evaluated by in-situ Raman spectroscopy with an optical trap. Bacillus atrophaeus is utilized as a model organism. Individual spores are isolated and their chemical makeup is monitored under dynamically changing conditions (temperature, light, and H₂O₂ concentration) to mimic industrially relevant process parameters for sterilization in the field of aseptic food processing. While isolated spores in water are highly stable, even at elevated temperatures of 70 °C, exposure to H₂O₂ leads to a loss of spore integrity characterized by the release of the key spore biomarker dipicolinic acid (DPA) in a concentration-dependent manner, which indicates damage to the inner membrane of the spore. Intensive light or heat, both of which accelerate the decomposition of H₂O₂ into reactive oxygen species (ROS), drastically shorten the spore lifetime, suggesting the formation of ROS as a rate-limiting step during sterilization. It is concluded that Raman spectroscopy can deliver mechanistic insight into the mode of action of H₂O₂-based sterilization and reveal the individual contributions of different sterilization methods acting in tandem. KW - hydrogen peroxide KW - optical spore trapping KW - Raman spectroscopy KW - sterilization conditions KW - temperature Y1 - 2024 U6 - https://doi.org/10.1002/pssa.202300866 SN - 1862-6319 (Online) SN - 1862-6300 (Print) N1 - Corresponding author: Michael J. Schöning IS - Early View PB - Wiley-VCH CY - Berlin ER - TY - JOUR A1 - Nehr, Sascha A1 - Baus, Lukas A1 - Çinar, Hasan A1 - Elsen, Ingo A1 - Frauenrath, Tobias T1 - Indoor environmental quality assessment in passively ventilated classrooms in Germany and estimation of ventilation energy losses JF - Journal of Building Engineering N2 - In this field study we present an approach for the comprehensive and room-specific assessment of parameters with the overall aim to realize energy-efficient provision of hygienically harmless and thermally comfortable indoor environmental quality in naturally ventilated non-residential buildings. The approach is based on (i) conformity assessment of room design parameters, (ii) empirical determination of theoretically expected occupant-specific supply air flow rates and corresponding air exchange rates, (iii) experimental determination of real occupant-specific supply air flow rates and corresponding air exchange rates, (iv) measurement of indoor environmental exposure conditions of T, RH, cCO2 , cPM2.5 and cTVOC, and (v) determination of real energy demands for the prevailing ventilation scheme. Underlying assessment criteria comprise the indoor environmental parameters of category II of EN 16798-1: Temperature T = 20 ◦C–24 ◦C, and relative humidity RH = 25 %–60 % as well as the guide values of the German Federal Environment Agency for cCO2 cPM2.5 and cTVOC of 1000 ppm, 15 μg m⁻³, and 1 mg m ⁻³, respectively. Investigation objects are six naturally ventilated classrooms of a German secondary school. Major factors influencing indoor environmental quality in these classrooms are the specific room volume per occupant and the window opening area. It is concluded that the rigorous implementation of ventilation recommendations laid down by the German Federal Environment Agency is ineffective with respect to anticipated indoor environmental parameters and inefficient with respect to ventilation energy losses on the order of about 10 kWh m⁻² a ⁻¹ to 30 kWh m⁻² a ⁻¹. KW - Indoor air quality KW - Indoor environmental quality KW - Energy-efficient ventilation KW - CO2 KW - PM2.5 Y1 - 2024 SN - 2352-7102 VL - 97 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Golland, Alexander A1 - Kriegesmann, Torben T1 - Zivilprozessuale Fragen zum datenschutzrechtlichen Schadensersatzanspruch JF - MMR - Zeitschrift für IT-Recht und Recht der Digitalisierung N2 - Im Verfahren gegen die Österreichische Post AG (Rs. C-300/21) befasste sich der EuGH erstmals mit dem in Art. 82 DS-GVO geregelten datenschutzrechtlichen Schadensersatzanspruch. Mit den Klarstellungen des EuGH verschieben sich die Probleme nun stärker zu den „klassischen“ Fragen des Schadensersatzrechts im Zivilprozess. Relevant sind dabei vor allem Aspekte der Darlegungs- und Beweislast und deren Besonderheiten mit Blick auf den Ersatz immaterieller Schäden. Der Beitrag fokussiert sich auf die Voraussetzungen und den dabei zu führenden Tatsachenbeweis bei der Klage des Betroffenen gegen den Verantwortlichen auf Ersatz immaterieller Schäden. Y1 - 2023 SN - 2698-7988 IS - 10 SP - 733 EP - 739 PB - Beck CY - München ER - TY - JOUR A1 - Moreno i Codinachs, Lia A1 - Kloock, Joachim P. A1 - Schöning, Michael Josef A1 - Baldi, Antoni A1 - Ipatov, Andrey A1 - Bratov, Andrey V. A1 - Jimenez-Jorquera, Cecilia T1 - Electronic integrated multisensor tongue applied to grape juice and wine analysis JF - Analyst. 133 (2008) Y1 - 2008 SN - 1364-5528 SP - 1440 EP - 1448 ER - TY - JOUR A1 - Golland, Alexander T1 - Kompetenz nationaler Wettbewerbsbehörden zur Feststellung eines Verstoßes gegen die DS-GVO BT - Anmerkung zum EuGH-Urteil vom 4.7.2023 JF - MMR - Zeitschrift für IT-Recht und Recht der Digitalisierung Y1 - 2023 IS - 9 SP - 680 EP - 683 PB - Beck CY - München ER - TY - JOUR A1 - Tix, Julian A1 - Gotthardt, Leon A1 - Bode, Joshua A1 - Karabacak, Burak A1 - Nordmann, Janne A1 - Hengsbach, Jan-Niklas A1 - Ulber, Roland A1 - Tippkötter, Nils T1 - Enhancement of succinic acid production by Actinobacillus succinogenes in an electro-bioreactor JF - Fermentation N2 - This work examines the electrochemically enhanced production of succinic acid using the bacterium Actinobacillus succinogenes. The principal objective is to enhance the metabolic potential of glucose and CO2 utilization via the C4 pathway in order to synthesize succinic acid. We report on the development of an electro-bioreactor system to increase succinic acid production in a power-2-X approach. The use of activated carbon fibers as electrode surfaces and contact areas allows A. succinogenes to self-initiate biofilm formation. The integration of an electrical potential into the system shifts the redox balance from NAD+ to NADH, increasing the efficiency of metabolic processes. Mediators such as neutral red facilitate electron transfer within the system and optimize the redox reactions that are crucial for increased succinic acid production. Furthermore, the role of carbon nanotubes (CNTs) in electron transfer was investigated. The electro-bioreactor system developed here was operated in batch mode for 48 h and showed improvements in succinic acid yield and concentration. In particular, a run with 100 µM neutral red and a voltage of −600 mV achieved a yield of 0.7 gsuccinate·gglucose−1. In the absence of neutral red, a higher yield of 0.72 gsuccinate·gglucose−1 was achieved, which represents an increase of 14% compared to the control. When a potential of −600 mV was used in conjunction with 500 µg∙L−1 CNTs, a 21% increase in succinate concentration was observed after 48 h. An increase of 33% was achieved in the same batch by increasing the stirring speed. These results underscore the potential of the electro-bioreactor system to markedly enhance succinic acid production. KW - A. succinogenes KW - power-to-X KW - electrofermentation KW - electro-bioreactor KW - succinate Y1 - 2024 U6 - https://doi.org/10.3390/fermentation10100504 SN - 2311-5637 N1 - Corresponding author: Nils Tippkötter N1 - This article belongs to the Special Issue "Advance in Microbial Electrochemical Technologies" VL - 10 IS - 10 PB - MDPI CY - Basel ER - TY - JOUR A1 - Ziemons, Karl A1 - Auffray, Etiennette A1 - Barbier, Rémi A1 - Brandenburg, G. A1 - Bruyndonckx, Peter A1 - Choi, Yong A1 - Christ, Daniela A1 - Costes, Nicolas A1 - Déclais, Yves R. A. A1 - Devroede, Olivier A1 - Dujardin, Christophe A1 - Fedorovd, A. A1 - Heinrichs, U. A1 - Korzhik, Mikhail V. A1 - Krieguer, Magalie A1 - Kuntner, Claudia A1 - Largeron, G. A1 - Lartizien, Carole A1 - Larue, H. A1 - Lecoq, Paul R. A1 - Vieira, Jean Marc T1 - The ClearPET™ project: Development of a 2nd generation high-performance small animal PET scanner JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment N2 - Second generation high-performance PET scanners, called ClearPET™1, have been developed by working groups of the Crystal Clear Collaboration (CCC). High sensitivity and high spatial resolution for the ClearPET camera is achieved by using a phoswich arrangement combining two different types of lutetium-based scintillator materials: LSO from CTI and LuYAP:Ce from the CCC (ISTC project). In a first ClearPET prototype, phoswich arrangements of 8×8 crystals of 2×2×10 mm3 are coupled to multi-channel photomultiplier tubes (Hamamatsu R7600). A unit of four PMTs arranged in-line represents one of 20 sectors of the ring design. The opening diameter of the ring is 120 mm, the axial detector length is 110 mm.The PMT pulses are digitized by free-running ADCs and digital data processing determines the gamma energy, the phoswich layer and even the exact pulse starting time, which is subsequently used for coincidence detection. The gantry allows rotation of the detector modules around the field of view. Preliminary data shows a correct identification of the crystal layer about (98±1)%. Typically the energy resolution is (23.3±0.5)% for the luyap layer and (15.4±0.4)% for the lso layer. early studies showed the timing resolution of 2 ns FWHM and 4.8 ns FWTM. the intrinsic spatial resolution ranges from 1.37 mm to 1.61 mm full-width of half-maximum (FWHM) with a mean of 1.48 mm FWHM. further improvements in image and energy resolution are expected when the system geometry is fully modeled. Y1 - 2005 SN - 0168-9002 N1 - Proceedings of the 7th International Conference on Inorganic Scintillators and their Use in Scientific and Industrial Applications VL - 537 IS - 1-2 SP - 307 EP - 311 ER - TY - JOUR A1 - Auffray, Etiennette A1 - Bruyndonckx, Peter A1 - Devroede, Olivier A1 - Fedorov, Andrei A. A1 - Ziemons, Karl A1 - Heinrichs, U. A1 - Korjik, Mikhail V. A1 - Krieguer, Magalie A1 - Kuntner, Claudia A1 - Lartizien, Carole A1 - Lecoq, Paul R. A1 - Léonard, Sophie M. A. A1 - Morel, Christian A1 - Mosset, Jean-Baptiste A1 - Pédrini, Christian A1 - Petrosian, A. G. A1 - Pietrzyk, Uwe K. A1 - Rey, Martin A1 - Saladino, S. A1 - Sappey-Marinier, D. A1 - Simon, Luc T1 - The ClearPET project JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment N2 - The Crystal Clear Collaboration has designed and is building a high-resolution small animal PET scanner. The design is based on the use of the Hamamatsu R7600-M64 multi-anode photomultiplier tube and a LSO/LuYAP phoswich matrix with one to one coupling between the crystals and the photo-detector. The complete system will have 80 PM tubes in four rings with an inner diameter of 137 mm and an axial field of view of 110 mm. The PM pulses are digitized by free-running ADCs and digital data processing determines the gamma energy, the phoswich layer and even the pulse arrival time. Single gamma interactions are recorded and coincidences are found by software. The gantry allows rotation of the detector modules around the field of view. Simulations, and measurements a 2×4 module test set-up predict a spatial resolution of 1.5 mm in the centre of the field of view and a sensitivity of 5.9% for a point source in the centre of the field of view. Y1 - 2004 SN - 0168-9002 N1 - Proceedings of the 2nd International Conference on Imaging Technologies in Biomedical Sciences VL - 527 IS - 1-2 SP - 171 EP - 174 ER - TY - JOUR A1 - Chwallek, Constanze A1 - Nawrath, Lara A1 - Krastina, Anzelika A1 - Bruksle, Ieva T1 - Supportive research on sustainable entrepreneurship and business practices JF - SECA Sustainable Entrepreneurship for Climate Action Y1 - 2024 SN - 978-952-316-514-4 (pdf) SN - 2954-1654 (on-line publication) IS - 3 PB - Lapland University of Applied Sciences Ltd CY - Rovaniemi ER - TY - JOUR A1 - Braun, Sebastian A1 - Cheng, Chi-Tsun A1 - Dowey, Steve A1 - Wollert, Jörg F. T1 - Performance evaluation of skill-based order-assignment in production environments with multi-agent systems JF - IEEE Journal of Emerging and Selected Topics in Industrial Electronics N2 - The fourth industrial revolution introduces disruptive technologies to production environments. One of these technologies are multi-agent systems (MASs), where agents virtualize machines. However, the agent's actual performances in production environments can hardly be estimated as most research has been focusing on isolated projects and specific scenarios. We address this gap by implementing a highly connected and configurable reference model with quantifiable key performance indicators (KPIs) for production scheduling and routing in single-piece workflows. Furthermore, we propose an algorithm to optimize the search of extrema in highly connected distributed systems. The benefits, limits, and drawbacks of MASs and their performances are evaluated extensively by event-based simulations against the introduced model, which acts as a benchmark. Even though the performance of the proposed MAS is, on average, slightly lower than the reference system, the increased flexibility allows it to find new solutions and deliver improved factory-planning outcomes. Our MAS shows an emerging behavior by using flexible production techniques to correct errors and compensate for bottlenecks. This increased flexibility offers substantial improvement potential. The general model in this paper allows the transfer of the results to estimate real systems or other models. KW - cyber-physical production systems KW - event-based simulation KW - multi-agent systems KW - digital factory KW - industrial agents Y1 - 2021 U6 - https://doi.org/10.1109/JESTIE.2021.3108524 SN - 2687-9735 IS - Early Access PB - IEEE CY - New York ER - TY - JOUR A1 - Wollert, Jörg F. A1 - Kruse, Thomas A1 - Vedral, Andreas T1 - Die Kraft der drei Antennen : zuverlässige Funkkommunikation für die Automatisierungstechnik JF - Elektronik : Fachmedium für industrielle Anwender und Entwickler ; Sonderh. Wireless : Fachmedium für Entwicklungen funkbasierter Systeme Y1 - 2007 SN - 0013-5658; 1611-5120 N1 - Printausgabe in der Bibliothek vorhanden: 23 Z 133; 63 ZS 035 VL - 56 IS - Sonderh. 2 SP - 36 EP - 42 ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Betriebssysteme im Wettlauf : Elan-Entwicklungsboard mit Win CE und QNX JF - Elektronik : Fachmedium für industrielle Anwender und Entwickler Y1 - 1999 SN - 0013-5658 N1 - Printausg. in der Bibliothek vorhanden: 63 ZS 030 VL - Bd. 48 IS - H. 11 SP - 86 EP - 91 ER - TY - JOUR A1 - Ulmer, Jessica A1 - Braun, Sebastian A1 - Cheng, Chi-Tsun A1 - Dowey, Steve A1 - Wollert, Jörg F. T1 - Gamification of virtual reality assembly training: Effects of a combined point and level system on motivation and training results JF - International Journal of Human-Computer Studies N2 - Virtual Reality (VR) offers novel possibilities for remote training regardless of the availability of the actual equipment, the presence of specialists, and the training locations. Research shows that training environments that adapt to users' preferences and performance can promote more effective learning. However, the observed results can hardly be traced back to specific adaptive measures but the whole new training approach. This study analyzes the effects of a combined point and leveling VR-based gamification system on assembly training targeting specific training outcomes and users' motivations. The Gamified-VR-Group with 26 subjects received the gamified training, and the Non-Gamified-VR-Group with 27 subjects received the alternative without gamified elements. Both groups conducted their VR training at least three times before assembling the actual structure. The study found that a level system that gradually increases the difficulty and error probability in VR can significantly lower real-world error rates, self-corrections, and support usages. According to our study, a high error occurrence at the highest training level reduced the Gamified-VR-Group's feeling of competence compared to the Non-Gamified-VR-Group, but at the same time also led to lower error probabilities in real-life. It is concluded that a level system with a variable task difficulty should be combined with carefully balanced positive and negative feedback messages. This way, better learning results, and an improved self-evaluation can be achieved while not causing significant impacts on the participants' feeling of competence. KW - Gamification KW - Virtual reality KW - Assembly KW - User study KW - Level system Y1 - 2022 U6 - https://doi.org/10.1016/j.ijhcs.2022.102854 SN - 1071-5819 VL - 165 IS - Art. No. 102854 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Ulmer, Jessica A1 - Braun, Sebastian A1 - Cheng, Chi-Tsun A1 - Dowey, Steve A1 - Wollert, Jörg F. T1 - A human factors-aware assistance system in manufacturing based on gamification and hardware modularisation JF - International Journal of Production Research N2 - Assistance systems have been widely adopted in the manufacturing sector to facilitate various processes and tasks in production environments. However, existing systems are mostly equipped with rigid functional logic and do not provide individual user experiences or adapt to their capabilities. This work integrates human factors in assistance systems by adjusting the hardware and instruction presented to the workers’ cognitive and physical demands. A modular system architecture is designed accordingly, which allows a flexible component exchange according to the user and the work task. Gamification, the use of game elements in non-gaming contexts, has been further adopted in this work to provide level-based instructions and personalised feedback. The developed framework is validated by applying it to a manual workstation for industrial assembly routines. KW - Human factors KW - assistance system KW - gamification KW - adaptive systems KW - manufacturing Y1 - 2023 U6 - https://doi.org/10.1080/00207543.2023.2166140 SN - 0020-7543 (Print) SN - 1366-588X (Online) PB - Taylor & Francis ER - TY - JOUR A1 - Ulmer, Jessica A1 - Braun, Sebastian A1 - Cheng, Chi-Tsun A1 - Dowey, Steve A1 - Wollert, Jörg F. T1 - Human-Centered Gamification Framework for Manufacturing Systems JF - Procedia CIRP N2 - While bringing new opportunities, the Industry 4.0 movement also imposes new challenges to the manufacturing industry and all its stakeholders. In this competitive environment, a skilled and engaged workforce is a key to success. Gamification can generate valuable feedbacks for improving employees’ engagement and performance. Currently, Gamification in workspaces focuses on computer-based assignments and training, while tasks that require manual labor are rarely considered. This research provides an overview of Enterprise Gamification approaches and evaluates the challenges. Based on that, a skill-based Gamification framework for manual tasks is proposed, and a case study in the Industry 4.0 model factory is shown. Y1 - 2020 U6 - https://doi.org/10.1016/j.procir.2020.04.076 SN - 2212-8271 VL - 93 SP - 670 EP - 675 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Alles automatisch : komplexes qualitätsorientiertes Logistikmanagement durch Vollautomatisierung JF - Elektrotechnik für die Automatisierung Y1 - 1998 SN - 0013-581X VL - Bd. 80 IS - H. 4 SP - 196 EP - 199 ER - TY - JOUR A1 - Ziemons, Karl A1 - Bruyndonckx, Peter A1 - Perez, Jose M. A1 - Pietrzyk, Uwe A1 - Rato, P. A1 - Tavernier, Stefaan T1 - Beyond ClearPET: Next Aims JF - 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro Symposium Proceedings ISBI 2008 N2 - The CRYSTAL CLEAR collaboration, in short CCC, is a consortium of 12 academic institutions, mainly from Europe, joining efforts in the area of developing instrumentation for nuclear medicine and medical imaging. In the framework of the CCC a high performance small animal PET system, called ClearPET, was developed by using new technologies in electronics and crystals in a phoswich arrangement combining two types of lutetium- based scintillator materials: LSO:Ce and LuYAP:Ce. Our next aim will be the development of hybrid image systems. Hybrid MR-PET imaging has many unique advantages for brain research. This has sparked a new research line within CCC for the development of novel MR-PET compatible technologies. MRI is not as sensitive as PET but PET has poorer spatial resolution than MRI. Two major advantages of PET are sensitivity and its ability to acquire metabolic information. To assess these innovations, the development of a 9.4T hybrid animal MR-PET scanner is proposed based on an existing 9.4T MR scanner that will be adapted to enable simultaneous acquisition of MR and PET data using cutting- edge technology for both MR and PET. Y1 - 2008 SN - 978-1-4244-2003-2 SP - 1421 EP - 1424 ER - TY - JOUR A1 - Wedrowski, Mateusz A1 - Bruyndonckx, Peter A1 - Tavernier, Stefaan A1 - Zhi, Li A1 - Dang, Jun A1 - Mendes, Pedro Rato A1 - Perez, Jose Manuel A1 - Ziemons, Karl T1 - Robustness of neural networks algorithm for gamma detection in monolithic block detector, positron emission tomography JF - 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC) N2 - The monolithic scintillator block approach for gamma detection in the Positron Emission Tomography (PET) avoids estimating Depth of Interaction (DOI), reduces dead zones in detector and diminishes costs of detector production. Neural Networks (NN) are very efficient to determine the entrance point of a gamma incident on a scintillator block. This paper presents results on the robustness of the spatial resolution as a function of the random fraction in the data, temperature and HV fluctuations. This is important when implementing the method in a real scanner. Measurements were done with two Hamamatsu S8550 APD arrays, glued on a 20 × 20 × 10 mm3 monolithic LSO crystal block. Y1 - 2009 SN - 1082-3654 SP - 2625 EP - 2628 ER - TY - JOUR A1 - Ulber, Roland A1 - Tippkötter, Nils A1 - Buchholz, Heinrich A1 - Demmer, W. A1 - Scheper, T. T1 - Innovative Verfahren in der Molkeaufarbeitung zur Gewinnung neuer Produkte JF - Deutsche Milchwirtschaft Y1 - 2008 SN - 0012-0480 VL - 59 IS - 19 SP - 704 EP - 706 ER - TY - JOUR A1 - Hoffschmidt, Bernhard A1 - Buck, Reiner A1 - Fend, Thomas A1 - Pitz-Paal, Robert A1 - Rietbrock, P. T1 - Porous materials as volumetric solar receivers : experimental approach towards a detailed characterisation of instability problems / R. Buck ; T. Fend ; B. Hoffschmidt ... JF - Forschungsbericht : DLR FB. 10 (2001) Y1 - 2001 SN - 0939-2963 N1 - 2. ISSN: 1434-8454 ; Kölner Sonnenkolloquium <5, 2001, Köln> ; Solar thermal power plants and solar chemical processes : advances and perspectives for international cooperation SP - 71 EP - 72 ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Bluetooth aktuell - Technik und Anwendungen ; 8: Anwendungs-Profile JF - Elektronik : Fachmedium für industrielle Anwender und Entwickler Y1 - 2001 SN - 0013-5658 N1 - Printausg. in der Bibliothek vorhanden: 63 ZS 030 VL - Bd. 50 IS - H. 25 SP - 66 EP - 73 ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Wireless in industriellen Anwendungen JF - Elektronik : Fachmedium für industrielle Anwender und Entwickler ; Sonderh. Scout : Leitfaden für Elektronik-Entwickler Y1 - 2007 SN - 1863-3420 SP - 40 EP - 46 ER - TY - JOUR A1 - Leidinger, Rafael A1 - Noisten, Thomas A1 - Wollert, Jörg F. T1 - Realtime automation networks in moVing industrial environments JF - Journal of systemics, cybernetics and informatics N2 - The radio-based wireless data communication has made the realization of new technical solutions possible in many fields of the automation technology (AT). For about ten years, a constant disproportionate growth of wireless technologies can be observed in the automation technology. However, it shows that especially for the AT, conventional technologies of office automation are unsuitable and/or not manageable. The employment of mobile services in the industrial automation technology has the potential of significant cost and time savings. This leads to an increased productivity in various fields of the AT, for example in the factory and process automation or in production logistics. In this paper technologies and solutions for an automation-suited supply of mobile wireless services will be introduced under the criteria of real time suitability, IT-security and service orientation. Emphasis will be put on the investigation and development of wireless convergence layers for different radio technologies, on the central provision of support services for an easy-to-use, central, backup enabled management of combined wired / wireless networks and on the study on integrability in a Profinet real-time Ethernet network. KW - PROFINET KW - Distributed Control Systems, KW - Industrial Automation Technology, KW - 802.15.4 KW - Bluetooth KW - Wireless Networks Y1 - 2012 SN - 1690-4532 VL - 10 IS - 2 SP - 52 EP - 56 PB - IIIC CY - Orlando ER - TY - JOUR A1 - Wollert, Jörg F. A1 - Fiedler, Jörg T1 - atp-Marktanalyse Echtzeitbetriebssysteme JF - Automatisierungstechnische Praxis : atp ; Praxis der Meß-, Steuerungs-, Regelungs- und Informationstechnik mit Softwaretechnik Y1 - 1996 SN - 0340-4730 N1 - Printausg. in der Bibliothek vorhanden: 23 Z 324 VL - Bd. 38 IS - H. 1 SP - 33 EP - 44 ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Die Produktionslogistik der Front- und Heckmodule für die Smart-Montage in Hambach JF - Logistik für Unternehmen : das Fachmagazin der internen und externen Logistik Y1 - 1998 SN - 0930-7834 N1 - Printausg. in der Bibliothek vorhanden: 43 Z 513 SP - 48 EP - 51 ER - TY - JOUR A1 - Heine, Andreas A1 - Herrmann, Gloria A1 - Selmer, Thorsten A1 - Terwesten, Felix A1 - Buckel, Wolfgang A1 - Reuter, Klaus T1 - High resolution crystal structure of clostridium propionicum β-Alanyl-CoA:Ammonia Lyase, a new member of the "Hot Dog Fold" protein superfamily JF - Proteins N2 - Clostridium propionicum is the only organism known to ferment β-alanine, a constituent of coenzyme A (CoA) and the phosphopantetheinyl prosthetic group of holo-acyl carrier protein. The first step in the fermentation is a CoA-transfer to β-alanine. Subsequently, the resulting β-alanyl-CoA is deaminated by the enzyme β-alanyl-CoA:ammonia lyase (Acl) to reversibly form ammonia and acrylyl-CoA. We have determined the crystal structure of Acl in its apo-form at a resolution of 0.97 Å as well as in complex with CoA at a resolution of 1.59 Å. The structures reveal that the enyzme belongs to a superfamily of proteins exhibiting a so called “hot dog fold” which is characterized by a five-stranded antiparallel β-sheet with a long α-helix packed against it. The functional unit of all “hot dog fold” proteins is a homodimer containing two equivalent substrate binding sites which are established by the dimer interface. In the case of Acl, three functional dimers combine to a homohexamer strongly resembling the homohexamer formed by YciA-like acyl-CoA thioesterases. Here, we propose an enzymatic mechanism based on the crystal structure of the Acl·CoA complex and molecular docking. Proteins 2014; 82:2041–2053. © 2014 Wiley Periodicals, Inc. Y1 - 2014 U6 - https://doi.org/10.1002/prot.24557 SN - 1097-0134 (E-Journal); 0887-3585 (Print) VL - 82 IS - 9 SP - 2041 EP - 2053 PB - Wiley-Liss CY - New York ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Bluetooth aktuell - Technik und Anwendungen ; 3: Rund um den Bluetooth-Protokollstack JF - Elektronik : Fachmedium für industrielle Anwender und Entwickler Y1 - 2001 SN - 0013-5658 N1 - Printausg. in der Bibliothek vorhanden: 63 ZS 030 VL - Bd. 50 IS - H. 19 SP - 96 EP - 103 ER - TY - JOUR A1 - Valero, Daniel A1 - Felder, Stefan A1 - Kramer, Matthias A1 - Wang, Hang A1 - Carrillo, José M. A1 - Pfister, Michael A1 - Bung, Daniel Bernhard T1 - Air–water flows JF - Journal of Hydraulic Research N2 - High Froude-number open-channel flows can entrain significant volumes of air, a phenomenon that occurs continuously in spillways, in free-falling jets and in hydraulic jumps, or as localized events, notably at the toe of hydraulic jumps or in plunging jets. Within these flows, turbulence generates millions of bubbles and droplets as well as highly distorted wavy air–water interfaces. This phenomenon is crucial from a design perspective, as it influences the behaviour of high-velocity flows, potentially impairing the safety of dam operations. This review examines recent scientific and engineering progress, highlighting foundational studies and emerging developments. Notable advances have been achieved in the past decades through improved sampling of flows and the development of physics-based models. Current challenges are also identified for instrumentation, numerical modelling and (up)scaling that hinder the formulation of fundamental theories, which are instrumental for improving predictive models, able to offer robust support for the design of large hydraulic structures at prototype scale. Y1 - 2024 U6 - https://doi.org/10.1080/00221686.2024.2379482 SN - 0022-1686 (Print) SN - 1814-2079 (Online) VL - 62 IS - 4 SP - 319 EP - 339 PB - Taylor & Francis ER - TY - JOUR A1 - Gerigk, M. A1 - Bujnicki, Robert A1 - Ganpo-Nkwenkwa, E. A1 - Bongaerts, Johannes A1 - Sprenger, Georg A. A1 - Takors, Ralf T1 - Process control for enhanced L-phenylalanine production using different recombinant Escherichia coli strains JF - Biotechnology and bioengineering Y1 - 2002 SN - 1097-0290 (E-Journal); 0006-3592 (Print) VL - Vol. 80 IS - Iss. 7 SP - 746 EP - 754 ER - TY - JOUR A1 - Slabu, Ioana A1 - Roeth, Anjali A. A1 - Engelmann, Ulrich M. A1 - Wiekhorst, Frank A1 - Buhl, Eva Miriam A1 - Neumann, Ulf P. A1 - Schmitz-Rode, Thomas T1 - Modeling of magnetoliposome uptake in human pancreatic tumor cells in vitro JF - Nanotechnology Y1 - 2019 U6 - https://doi.org/10.1088/1361-6528/ab033e SN - 1361-6528 VL - 30 IS - 18 SP - 184004 ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Echtzeit-Ethernet – Basis für Industrie 4.0 JF - Design & Elektronik Y1 - 2018 SN - 0933-8667 N1 - Echtzeit für Industrie 4.0. - Teil 2 PB - WEKA-Fachmedien CY - München ER - TY - JOUR A1 - Artmann, Gerhard A1 - Kelemen, Christina A1 - Porst, Dariusz A1 - Büldt, Georg A1 - Chien, Shu T1 - Temperature transitions of protein properties in human red blood cells. Artmann, Gerhard Michael, Kelemen, Christina; Porst, D.; Büldt, G.; Chien, S. JF - Biophysical Journal. 75 (1998), H. 6 Y1 - 1998 SN - 1542-0086 N1 - http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1299989&blobtype=pdf SP - 3179 EP - 3183 ER - TY - JOUR A1 - Buniatyan, Vahe Vazgen A1 - Abouzar, Maryam H. A1 - Martirosyan, Norayr W. A1 - Schubert, Jürgen A1 - Gevorgian, Spartak A1 - Schöning, Michael Josef A1 - Poghossian, Arshak T1 - pH-sensitive properties of barium strontium titanate (BST) thin films prepared by pulsed laser deposition technique JF - Physica Status Solidi (A) N2 - pH-sensitive properties of barium strontium titanate (BST) high-k thin films as alternative gate material for field-effect capacitive (bio-)chemical sensors based on an electrolyte-insulator-semiconductor system have been investigated. The BST films of different compositions (Ba0.31Sr0.69TiO3, Ba0.25Sr0.75TiO3 and Mg-doped Ba0.8Sr0.2Mg0.1Ti0.9O3) were deposited by pulsed laser deposition technique from targets fabricated by self-propagating high-temperature synthesis. The realised sensors have been electrochemically characterised by means of impedance-spectroscopy, capacitance–voltage and constant-capacitance method. The sensors possess a Nernstian-like pH sensitivity in the concentration range between pH 3 and 11 with a response time of 5–10 s. An equivalent circuit model for the BST-based capacitive field-effect sensor is discussed. Y1 - 2010 U6 - https://doi.org/10.1002/pssa.200983310 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 VL - 207 IS - 4 SP - 824 EP - 830 PB - Wiley-VCH CY - Berlin ER - TY - JOUR A1 - Buniatyan, Vahe Vazgen A1 - Matirosyan, N. A1 - Abouzar, Maryam H. A1 - Schubert, J. A1 - Zander, W. A1 - Gevorgian, S. A1 - Schöning, Michael Josef A1 - Poghossian, Arshak T1 - Capacitive field-effect pH sensor based on an electrolyte-ferroelectric-insulator-semiconductor structure JF - SENSOR 2009 : : 14th International Conference on Sensors, Technologies, Electronics and Applications; Nürnberg, Germany, 26 - 28 May 2009; proceedings; [part of] Sensor + Test Conference 2009 / AMA, Fachverband für Sensorik e.V Y1 - 2009 SN - 9783981099355 N1 - AMA, Fachverband für Sensorik ; Sensor International Conference ; (14 : ; 2009.05.26-28 : ; Nürnberg) SP - 317 EP - 322 PB - AMA Service CY - Wunstorf ER - TY - JOUR A1 - Hackl, Michael A1 - Mayer, Katharina A1 - Weber, Mareike A1 - Staat, Manfred A1 - van Riet, Roger A1 - Burkhart, Klaus Josef A1 - Müller, Lars-Peter A1 - Wegmann, Kilian T1 - Plate osteosynthesis of proximal ulna fractures : a biomechanical micromotion analysis JF - The journal of hand surgery Y1 - 2017 U6 - https://doi.org/10.1016/j.jhsa.2017.05.014 SN - 0363-5023 VL - 42 IS - 10 SP - 834.e1 EP - 834.e7 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Zwergen-Anatomie : Aufbau von und Entwicklung für Windows CE JF - C't : Magazin für Computertechnik Y1 - 1998 SN - 0724-8679 IS - H. 8 SP - 148 EP - 151 ER - TY - JOUR A1 - Heptner, K. A1 - Wollert, Jörg F. T1 - FML-Report - VDI-Richtlinie 4485 'E-Commerce und Logistik' JF - Logistik für Unternehmen : das Fachmagazin der internen und externen Logistik Y1 - 2005 SN - 0930-7834 N1 - Printausg. in der Bibliothek vorhanden: 43 Z 513 VL - 19 SP - 58 EP - 59 ER - TY - JOUR A1 - Staat, Manfred A1 - Fiorini, Gian Luigi A1 - Lensa, Werner von A1 - Burgazzi, Luciano T1 - Reliability Methods for Passive Safety Functions JF - Proceedings of the SMiRT 14 Post Conference Seminar No 18 on Passive Safety Features in Nuclear Installations Y1 - 1997 CY - Pisa ER - TY - JOUR A1 - Buniatyan, Vahe Vazgen A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Aroutiounian, V. M. A1 - Schöning, Michael Josef T1 - BaxSr1-x TiO3/pc-Si heterojunction capacitance JF - Armenian journal of physics Y1 - 2013 SN - 1829-1171 VL - 6 IS - 4 SP - 188 EP - 197 PB - National Academy of Sciences of Armenia CY - Yerevan ER - TY - JOUR A1 - Buniatyan, Vahe Vazgen A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Aroutiounian, V. M. A1 - Schöning, Michael Josef T1 - BaxSr1-x TiO3/pc-Si heterojunction JF - Armenian journal of physics Y1 - 2013 SN - 1829-1171 VL - 6 IS - 4 SP - 177 EP - 187 PB - National Academy of Sciences of Armenia CY - Yerevan ER - TY - JOUR A1 - Prume, Klaus A1 - Muralt, Paul A1 - Calame, Florian A1 - Schmitz-Kempen, Thorsten A1 - Tiedke, Stephan T1 - Piezoelectric thin films: evaluation of electrical and electromechanical characteristics for MEMS devices / Prume, K. ; Muralt, P. ; Calame, F. ; Schmitz-Kempen, T. ; Tiedke, S. ; JF - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 54 (2007), H. 1 Y1 - 2007 SN - 0885-3010 SP - 81 EP - 14 ER - TY - JOUR A1 - Buniatyan, Vahe Vazgen A1 - Matirosyan, N. W. A1 - Abouzar, Maryam H. A1 - Schöning, Michael Josef A1 - Poghossian, Arshak A1 - Schubert, J. A1 - Khachatryan, V. R. A1 - Soukiassyan, G. R. T1 - (Ba,Sr)TiO3 based electrolyte-insulator-semiconductor pHsensors: comparitive study JF - Semiconductor micro- and nanoelectronics : Proceedings of the Seventh International Conference , Tsakhcadzor, Armenia July 3-5 2009 Y1 - 2009 SP - 71 EP - 74 ER - TY - JOUR A1 - Stulpe, Werner A1 - Busch, Paul A1 - Hellwig, K.-E. T1 - Classical Representations of Finite-Dimensional Quantum Mechanics. Busch, P.; Hellwig, K.-E.; Stulpe, W. JF - International Journal of Theoretical Physics. 32 (1993), H. 3 Y1 - 1993 SN - 1572-9575 SP - 399 EP - 405 ER - TY - JOUR A1 - Pleßmann, K. W. A1 - Wollert, Jörg F. A1 - Fiedler, Jörg T1 - Die ganzheitliche und objektorientierte Prozesssteuerung - eine Vision? JF - CIM-Management : Produkte, Strategien, Entscheidungshilfen Y1 - 1995 SN - 0179-2679 VL - 11 IS - 2 SP - 56 EP - 60 ER - TY - JOUR A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Kerroumi, Iman A1 - Schusser, Sebastian A1 - Bäcker, Matthias A1 - Zander, Willi A1 - Schubert, Jürgen A1 - Buniatyan, Vahe Vazgen A1 - Martirosyan, Norayr W. A1 - Wagner, Patrick A1 - Schöning, Michael Josef T1 - Multiparameter sensor chip with Barium Strontium Titanate as multipurpose material JF - Electroanalysis N2 - It is well known that biochemical and biotechnological processes are strongly dependent and affected by a variety of physico-chemical parameters such as pH value, temperature, pressure and electrolyte conductivity. Therefore, these quantities have to be monitored or controlled in order to guarantee a stable process operation, optimization and high yield. In this work, a sensor chip for the multiparameter detection of three physico-chemical parameters such as electrolyte conductivity, pH and temperature is realized using barium strontium titanate (BST) as multipurpose material. The chip integrates a capacitively coupled four-electrode electrolyte-conductivity sensor, a capacitive field-effect pH sensor and a thin-film Pt-temperature sensor. Due to the multifunctional properties of BST, it is utilized as final outermost coating layer of the processed sensor chip and serves as passivation and protection layer as well as pH-sensitive transducer material at the same time. The results of testing of the individual sensors of the developed multiparameter sensor chip are presented. In addition, a quasi-simultaneous multiparameter characterization of the sensor chip in buffer solutions with different pH value and electrolyte conductivity is performed. To study the sensor behavior and the suitability of BST as multifunctional material under harsh environmental conditions, the sensor chip was exemplarily tested in a biogas digestate. Y1 - 2014 U6 - https://doi.org/10.1002/elan.201400076 SN - 1521-4109 (E-Journal); 1040-0397 (Print) VL - 26 IS - 5 SP - 980 EP - 987 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Bäcker, Matthias A1 - Chaudhuri, S. A1 - Zander, W. A1 - Schubert, J. A1 - Begoyan, Vardges K. A1 - Buniatyan, Vahe Vazgen A1 - Wagner, P. A1 - Schöning, Michael Josef T1 - Capacitively coupled electrolyte-conductivity sensor based on high-k material of barium strontium titanate JF - Sensors and actuators. B: Chemical Y1 - 2014 U6 - https://doi.org/10.1016/j.snb.2014.02.103 SN - 1873-3077 (E-Journal); 0925-4005 (Print) IS - 198 SP - 102 EP - 109 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Prume, Klaus A1 - Tyholdt, Frode A1 - Calame, Florian A1 - Raeder, Henrik A1 - Muralt, Paul T1 - Chemically derived seeding layer for {100}-textured PZT thin films / Tyholdt, F. ; Calame, F. ; Prume, K. ; Raeder, H. ; Muralt, P. JF - Journal of Electroceramics. 19 (2007), H. 4 Y1 - 2007 SN - 1385-3449 SP - 311 EP - 314 ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Funk für die Sicherheit auf vier Rädern : Chancen und Herausforderungen in der Fahrzeug-Umwelt-Kommunikation JF - Elektronik automotive : Magazin für Entwicklungen in der Kfz-Elektronik und Telematik Y1 - 2007 SN - 1614-0125 IS - H. 8 SP - 78 EP - 83 ER - TY - JOUR A1 - Wollert, Jörg F. A1 - Fiedler, Jörg A1 - Stockmann, T. T1 - Automatisieren mit dem PC : was der Personal Computer kann und wo er passen muss JF - Elektronik : Fachmedium für industrielle Anwender und Entwickler Y1 - 1994 SN - 0013-5658 IS - Nr. 6 SP - 76 EP - 82 ER - TY - JOUR A1 - Wollert, Jörg F. T1 - Wieviel Echtzeit kann Windows? JF - IEE : elektrische Automatisierung und Antriebstechnik Y1 - 1997 SN - 1434-2898 VL - Jg. 42 IS - Nr. 9 SP - 30 EP - 37 ER - TY - JOUR A1 - Poghossian, Arshak A1 - Welden, Rene A1 - Buniatyan, Vahe Vazgen A1 - Schöning, Michael Josef T1 - An Array of On-Chip Integrated, Individually Addressable Capacitive Field-Effect Sensors with Control Gate: Design and Modelling JF - Sensors N2 - The on-chip integration of multiple biochemical sensors based on field-effect electrolyte-insulator-semiconductor capacitors (EISCAP) is challenging due to technological difficulties in realization of electrically isolated EISCAPs on the same Si chip. In this work, we present a new simple design for an array of on-chip integrated, individually electrically addressable EISCAPs with an additional control gate (CG-EISCAP). The existence of the CG enables an addressable activation or deactivation of on-chip integrated individual CG-EISCAPs by simple electrical switching the CG of each sensor in various setups, and makes the new design capable for multianalyte detection without cross-talk effects between the sensors in the array. The new designed CG-EISCAP chip was modelled in so-called floating/short-circuited and floating/capacitively-coupled setups, and the corresponding electrical equivalent circuits were developed. In addition, the capacitance-voltage curves of the CG-EISCAP chip in different setups were simulated and compared with that of a single EISCAP sensor. Moreover, the sensitivity of the CG-EISCAP chip to surface potential changes induced by biochemical reactions was simulated and an impact of different parameters, such as gate voltage, insulator thickness and doping concentration in Si, on the sensitivity has been discussed. KW - equivalent circuit KW - multianalyte detection KW - control gate KW - on-chip integrated addressable EISCAP sensors KW - capacitive field-effect sensor Y1 - 2021 U6 - https://doi.org/10.3390/s21186161 SN - 1424-8220 N1 - This article belongs to the Special Issue "Field-Effect Sensors: From pH Sensing to Biosensing" VL - 21 IS - 18 SP - 17 PB - MDPI CY - Basel ER - TY - JOUR A1 - Poghossian, Arshak A1 - Werner, Frederik A1 - Buniatyan, Vahe Vazgen A1 - Wagner, Torsten A1 - Miamoto, K. A1 - Yoshinobu, T. A1 - Schöning, Michael Josef T1 - Towards addressability of light-addressable potentiometric sensors: Shunting effect of non-illuminated region and cross-talk JF - Sensor and Actuators B: Chemical N2 - The LAPS (light-addressable potentiometric sensor) platform is one of the most attractive approaches for chemical and biological sensing with many applications ranging from pH and ion/analyte concentration measurements up to cell metabolism detection and chemical imaging. However, although it is generally accepted that LAPS measurements are spatially resolved, the light-addressability feature of LAPS devices has not been discussed in detail so far. In this work, an extended electrical equivalent-circuit model of the LAPS has been presented, which takes into account possible cross-talk effects due to the capacitive coupling of the non-illuminated region. A shunting effect of the non-illuminated area on the measured photocurrent and addressability of LAPS devices has been studied. It has been shown, that the measured photocurrent will be determined not only by the local interfacial potential in the illuminated region but also by possible interfacial potential changes in the non-illuminated region, yielding cross-talk effects. These findings were supported by the experimental investigations of a penicillin-sensitive multi-spot LAPS and a metal-insulator-semiconductor LAPS as model systems. Y1 - 2017 U6 - https://doi.org/10.1016/j.snb.2017.01.047 SN - 0925-4005 IS - 244 SP - 1071 EP - 1079 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Bäcker, Matthias A1 - Reisert, Steffen A1 - Schubert, J. A1 - Zander, W. A1 - Begoyan, Vardges K. A1 - Buniatyan, Vahe Vazgen A1 - Schöning, Michael Josef T1 - Chemical sensors based on a high-k perovskite oxide of barium strontium titanate JF - Procedia Engineering N2 - High-k perovskite oxide of barium strontium titanate (BST) represents a very attractive multi-functional transducer material for the development of (bio-)chemical sensors for liquids. In this work, BST films have been applied as a sensitive transducer material for a label-free detection of adsorbed charged macromolecules (positively charged polyelectrolytes) and concentration of hydrogen peroxide vapor as well as protection insulator layer for a contactless electrolyte-conductivity sensor. The experimental results of characterization of individual sensors are presented. Special emphasis is devoted towards the development of a capacitively-coupled contactless electrolyte-conductivity sensor. KW - barium strontium titanate KW - high-k material KW - contactless conductivity sensor KW - multi-functional material KW - hydrogen peroxide Y1 - 2014 U6 - https://doi.org/10.1016/j.proeng.2014.11.258 SN - 1877-7058 N1 - EUROSENSORS 2014 ; European Conference on Solid-State Transducers <28, 2014> VL - 87 SP - 28 EP - 31 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Bäcker, Matthias A1 - Reisert, Steffen A1 - Kramer, Friederike A1 - Begoyan, Vardges K. A1 - Buniatyan, Vahe Vazgen A1 - Schöning, Michael Josef T1 - Multi-parameter sensing using high-k oxide of barium strontium titanate JF - Physica status solidi (a) N2 - High-k perovskite oxide of barium strontium titanate (BST) represents a very attractive multi-functional transducer material for the development of (bio-)chemical sensors. In this work, a Si-based sensor chip containing Pt interdigitated electrodes covered with a thin BST layer (485 nm) has been developed for multi-parameter chemical sensing. The chip has been applied for the contactless measurement of the electrolyte conductivity, the detection of adsorbed charged macromolecules (positively charged polyelectrolytes of polyethylenimine) and the concentration of hydrogen peroxide (H2O2) vapor. The experimental results of functional testing of individual sensors are presented. The mechanism of the BST sensitivity to charged polyelectrolytes and H2O2 vapor has been proposed and discussed. Y1 - 2015 U6 - https://doi.org/10.1002/pssa.201431911 SN - 1862-6319 VL - 212 IS - 6 SP - 1259 PB - Wiley CY - Weinheim ER -