TY - JOUR A1 - Rau, Christoph A1 - Alexopoulos, Spiros A1 - Breitbach, Gerd A1 - Hoffschmidt, Bernhard A1 - Latzke, Markus A1 - Sattler, Johannes Christoph T1 - Transient simulation of a solar-hybrid tower power plant with open volumetric receiver at the location Barstow JF - Energy procedia : proceedings of the SolarPACES 2013 International Conference N2 - In this work the transient simulations of four hybrid solar tower power plant concepts with open-volumetric receiver technology for a location in Barstow-Daggett, USA, are presented. The open-volumetric receiver uses ambient air as heat transfer fluid and the hybridization is realized with a gas turbine. The Rankine cycle is heated by solar-heated air and/or by the gas turbine's flue gases. The plant can be operated in solar-only, hybrid parallel or combined cycle-only mode as well as in any intermediate load levels where the solar portion can vary between 0 to 100%. The simulated plant is based on the configuration of a solar-hybrid power tower project, which is in planning for a site in Northern Algeria. The meteorological data for Barstow-Daggett was taken from the software meteonorm. The solar power tower simulation tool has been developed in the simulation environment MATLAB/Simulink and is validated. Y1 - 2014 U6 - https://doi.org/10.1016/j.egypro.2014.03.157 SN - 1876-6102 VL - 49 SP - 1481 EP - 1490 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Kronhardt, Valentina A1 - Alexopoulos, Spiros A1 - Reißel, Martin A1 - Sattler, Johannes Christoph A1 - Hoffschmidt, Bernhard A1 - Hänel, Matthias A1 - Doerbeck, Till T1 - High-temperature thermal storage system for solar tower power plants with open-volumetric air receiver simulation and energy balancing of a discretized model JF - Energy procedia N2 - This paper describes the modeling of a high-temperature storage system for an existing solar tower power plant with open volumetric receiver technology, which uses air as heat transfer medium (HTF). The storage system model has been developed in the simulation environment Matlab/Simulink®. The storage type under investigation is a packed bed thermal energy storage system which has the characteristics of a regenerator. Thermal energy can be stored and discharged as required via the HTF air. The air mass flow distribution is controlled by valves, and the mass flow by two blowers. The thermal storage operation strategy has a direct and significant impact on the energetic and economic efficiency of the solar tower power plants. Y1 - 2014 U6 - https://doi.org/10.1016/j.egypro.2014.03.094 SN - 1876-6102 (E-Journal) ; 1876-6102 (Print) VL - 49 SP - 870 EP - 877 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Jiminez German, Salvador A1 - Behbahani, Mehdi A1 - Miettinen, Susanna A1 - Grijpma, Dirk W. A1 - Haimi, Suvi P. T1 - Proliferation and differentiation of adipose stem cells towards smooth muscle cells on poly(trimethylene carbonate) membranes JF - Macromolecular symposia Y1 - 2013 SN - 0258-0322 VL - Vol. 334 IS - Iss. 1 SP - 133 EP - 142 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Kirschkamp, T. A1 - Jöckel, M. A1 - Wählisch, Georg A1 - Barry, J. C. T1 - Konstruktion eines Modellauges zur Simulation von Purkinje-Spiegelbildern für die Bestimmung der Krümmungsradien und der Lage der Augenlinse JF - Biomedizinische Technik = Biomedical Engineering Y1 - 1998 SN - 1862-278X (E-Journal); 0013-5585 (Print) N1 - Printausg. in der Bibliothek vorhanden: 63 Z 471-1998/99 VL - Bd. 43 IS - H. 11 SP - 318 EP - 325 ER - TY - JOUR A1 - Buniatyan, V. 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 - Buniatyan, V. 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 - Bäcker, Matthias A1 - Schusser, Sebastian A1 - Poghossian, Arshak A1 - Schöning, Michael Josef T1 - Degradationsverhalten bioabbaubarer Polymere : siliziumbasierte Sensorik zur Überwachung JF - GIT Labor-Fachzeitschrift Y1 - 2013 SN - 0016-3538 SP - 32 EP - 33 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Sabitova, A. A1 - Ebert, Ph. A1 - Lenz, A. A1 - Schaafhausen, S. A1 - Ivanova, L. A1 - Dähne, M. A1 - Hoffmann, A. A1 - Dunin-Borkowski, R. E. A1 - Förster, Arnold A1 - Grandidier, B. A1 - Eisele, H. T1 - Intrinsic bandgap of cleaved ZnO(112¯0) surfaces JF - Applied physics letters Y1 - 2013 SN - 1077-3118 (E-Journal); 0003-6951 (Print) VL - Vol. 102 SP - 021608 ER - TY - JOUR A1 - Hötter, Jan-Steffen A1 - Fateri, Miranda A1 - Gebhardt, Andreas T1 - Selective laser melting of metals: desktop machines open up new chances even for small companies JF - Advanced materials research N2 - Additive manufacturing (AM) of metal parts by using Selective Laser Melting (SLM) has become a powerful tool mostly in the area of automotive, aerospace engineering and others. Especially in the field of dentistry, jewelry and related branches that require individualized or even one-of-a-kind products, the direct digital manufacturing process opens up new ways of design and manufacturing. In these fields, mostly small and medium sized businesses (SME) are operating which do not have sufficient human and economic resources to invest in this technology. But to stay competitive, the application of AM can be regarded as a necessity. In this situation a new desktop machine (Realizer SLM 50) was introduced that cost about 1/3 of a shop floor SLM machine and promises small quality parts. To find out whether the machine really is an alternative for SMEs the University of Applied Science, Aachen, Germany, designed, build and optimized typical parts from the dentistry and the jewelry branches using CoCr and silver material, the latter being new with this application. The paper describes the SLM procedure and how to find and optimize the most important parameters. The test is accompanied by digital simulation in order to verify the build parameters and to plan future builds. The procedure is shown as well as the resulting parts made from CoCr and silver material. Y1 - 2012 U6 - https://doi.org/10.4028/www.scientific.net/AMR.622-623.461 SN - 1662-8985 (E-Journal); 1022-6680 (Print) VL - 622-623 SP - 461 EP - 465 PB - Trans Tech Publ. CY - Baech ER - TY - JOUR A1 - Micili, Serap C. A1 - Valter, Markus A1 - Oflaz, Hakan A1 - Ozogul, Candan A1 - Linder, Peter A1 - Föckler, Nicole A1 - Artmann, Gerhard A1 - Digel, Ilya A1 - Temiz Artmann, Aysegül T1 - Optical coherence tomography : a potential tool to predict premature rupture of fetal membranes JF - Proceedings of the Institution of Mechanical Engineers. Part H : Journal of engineering in medicine Y1 - 2013 SN - 0046-2039 (Print) ; 2041-3033 (E-Journal) VL - Vol. 227 IS - No. 4 SP - 393 EP - 401 PB - Sage CY - London ER -