TY - GEN A1 - Langendörfer, Peter A1 - Piotrowski, Krzysztof A1 - Peter, Steffen A1 - Lehmann, Martin T1 - Crosslayer Firewall Interaction as a Means to Provide Effective and Efficient Protection at Mobile Devices Y1 - 2007 ER - TY - GEN A1 - Stohwasser, Ralf A1 - Holzhütter, Hermann-Georg A1 - Lehmann, Undine A1 - Henklein, Peter A1 - Kloetzel, Peter-Michael T1 - Hepatitis B virus HBx peptide 116-138 and proteasome activator PA28 compete for binding to the proteasome alpha4/MC6 subunit. T2 - Biological Chemistry Y1 - 2003 U6 - https://doi.org/10.1515/BC.2003.005 SN - 1437-4315 SN - 1431-6730 VL - 384 IS - 1 SP - 39 EP - 49 ER - TY - CHAP A1 - Stücke, Peter A1 - Lehmann, B. A1 - Scurtu, Nicoleta A1 - Egbers, Christoph T1 - LDA-Messung in Zylinderspaltströmungen bei engen Spaltweiten Y1 - 2006 ER - TY - CHAP A1 - Stücke, Peter A1 - Lehmann, B. A1 - Scurtu, Nicoleta A1 - Egbers, Christoph T1 - Eccentric Couette Flow with Superimposed Crossflow Y1 - 2007 ER - TY - JOUR A1 - Stücke, Peter A1 - Lehmann, B. A1 - Scurtu, Nicoleta A1 - Egbers, Christoph T1 - Eccentric Couette Flow with Superimposed Crossflow Y1 - 2008 ER - TY - GEN A1 - Hofer, Markus A1 - Lehmann, Peter A1 - Biemelt, Detlef A1 - Stähli, Manfred A1 - Krafczyk, Manfred T1 - Modelling subsurface drainage pathways in an artificial catchment Y1 - 2011 UR - http://www.sciencedirect.com/science/journal/14747065 ER - TY - GEN A1 - Langendörfer, Peter A1 - Lehmann, Martin A1 - Piotrowski, Krzysztof T1 - Efficient Protection of Mobile Devices by Cross Layer Interaction of Firewall Approaches Y1 - 2006 ER - TY - GEN A1 - Langendörfer, Peter A1 - Lehmann, Martin T1 - Implementation Independent Profiling of SDL Specifications Y1 - 2005 ER - TY - RPRT A1 - Lehmann, B. A1 - Langendörfer, Peter T1 - Ergebnisbericht Wireless Internet - zellular Y1 - 2004 ER - TY - RPRT A1 - Lehmann, J. A1 - Langendörfer, Peter T1 - Abschlußbericht Feldtest, Empfehlungen Y1 - 2005 ER - TY - GEN A1 - Tarnawska, Lidia Lupina A1 - Dabrowski, Jarek Marek A1 - Grzela, Tomasz A1 - Niermann, T. A1 - Lehmann, M. A1 - Storck, Peter A1 - Schröder, Thomas T1 - Interface science of virtual GaN substrates on Si(111) via Sc2O3/Y2O3 buffers: Experiment and Theory T2 - Journal of Applied Physics Y1 - 2013 SN - 0021-8979 VL - 113 IS - 21 SP - 213507 EP - 213507 ER - TY - GEN A1 - Tarnawska, Lidia Lupina A1 - Zöllner, Marvin Hartwig A1 - Niermann, T. A1 - Dietrich, Burkhart A1 - Capellini, Giovanni A1 - Thapa, Sarad A1 - Häberlen, Maik A1 - Lehmann, M. A1 - Storck, Peter A1 - Schröder, Thomas T1 - Zero Lattice Mismatch and Truly Single Crystalline ScN Buffer Layers for GaN Growth on Silicon T2 - Applied Physics Letters Y1 - 2015 U6 - https://doi.org/10.1063/1.4935856 SN - 1077-3118 SN - 0003-6951 VL - 107 IS - 20 SP - 201907 ER - TY - GEN A1 - Niu, Gang A1 - Capellini, Giovanni A1 - Lupina, Grzegorz A1 - Niermann, Tore A1 - Salvalaglio, Marco A1 - Marzegalli, Anna A1 - Schubert, Markus Andreas A1 - Zaumseil, Peter A1 - Krause, Hans-Michael A1 - Skibitzki, Oliver A1 - Lehmann, Michael A1 - Montalenti, Francesco A1 - Xie, Ya-Hong A1 - Schröder, Thomas T1 - Photodetection in hybrid single layer graphene/fully coherent Ge island nanostructures selectively grown on Si nano-tip patterns T2 - ACS Applied Materials and Interfaces Y1 - 2016 SN - 1944-8252 VL - 8 IS - 3 SP - 2017 EP - 2026 ER - TY - GEN A1 - Niu, Gang A1 - Capellini, Giovanni A1 - Schubert, Markus Andreas A1 - Niermann, Tore A1 - Zaumseil, Peter A1 - Katzer, Jens A1 - Krause, Hans-Michael A1 - Skibitzki, Oliver A1 - Lehmann, Michael A1 - Xie, Ya-Hong A1 - Känel, Hans von A1 - Schröder, Thomas T1 - Dislocation-free Ge nano-crystals via pattern dependent selective Ge heteroepitaxy on Si nano-tip wafers T2 - Scientific Reports Y1 - 2016 U6 - https://doi.org/10.1038/srep22709 SN - 2045-2322 VL - 6 SP - 22709 ER - TY - GEN A1 - Niu, Gang A1 - Capellini, Giovanni A1 - Hatami, Fariba A1 - Bartolomeo, Antonio di A1 - Niermann, Tore A1 - Hameed, Hussein Emad A1 - Schubert, Markus Andreas A1 - Krause, Hans-Michael A1 - Zaumseil, Peter A1 - Skibitzki, Oliver A1 - Masselink, William T. A1 - Lehmann, Michael A1 - Xie, Ya-Hong A1 - Schröder, Thomas T1 - Selective Epitaxy of InP on Si and Rectification in Graphene/InP/Si Hybrid Structure T2 - ACS Applied Materials and Interfaces Y1 - 2016 U6 - https://doi.org/10.1021/acsami.6b09592 SN - 1944-8244 SN - 1944-8252 VL - 8 IS - 40 SP - 26948 EP - 26955 ER - TY - GEN A1 - Moncsek, Anja A1 - Gruner, Melanie A1 - Meyer, Hannes A1 - Lehmann, Andrea A1 - Kloetzel, Peter-Michael A1 - Stohwasser, Ralf T1 - Evidence for anti-apoptotic roles of proteasome activator 28g via inhibiting caspase activity T2 - Apoptosis Y1 - 2015 U6 - https://doi.org/10.1007/s10495-015-1149-6 SN - 1573-675X VL - 20 IS - 9 SP - 1211 EP - 1228 ER - TY - CHAP A1 - Berg, Peter A1 - Dückershoff, Roland A1 - Lehmann, Mario A1 - Prechavut, Nontavut T1 - Micro Turbo-Fuel-Cell-Technology: Hybrid compact turbo machinery technology and thermodynamic aspects regarding design parameters of a high efficient MGT-SOFC-system T2 - Proceedings of 12th European Conference on Turbomachinery Fluid dynamics & Thermodynamics, ETC12, April 3 - 7, 2017, Stockholm, Sweden N2 - The improvement of decentralised energy supply systems has received an important role in the recent years. One option therefore is the combination of SOFC with a recuperated MGT. Here, a new strategy for selecting the system parameters, such as the operating temperature of the SOFC, the turbine inlet temperature and the pressure ratio of the hybrid system, is presented. By introducing the heat ratio between the heat required to increase the process gas to the SOFC operating temperature and the heat required to raise the SOCF exhaust gas to the TIT, it was found that high efficiency (approx. 68%) is realisable in a compact hybrid system today. Analysis also shows that the HEX-technology is needed to improve the system effectiveness. Also, high recirculation rates with lower TIT can be considered as the future development direction. In addition, a sample configuration of an oil-free MGT rotor unit with high speed foil bearings is presented. KW - Turbo machinery KW - SOFC KW - Thermodynamic KW - CHP KW - Foil bearings Y1 - 2017 UR - http://www.euroturbo.eu/paper/ETC2017-266.pdf ER - TY - GEN A1 - Martin, Frank A1 - Lehmann, Mario A1 - Schläger, Peter A1 - Sack, Ulrich A1 - Anderer, Ursula T1 - Differentiation capacity of chondrocytes in microtissues depends on TGF-ß subtyp T2 - Journal of biochips & tissue chips : JBTC KW - microtissues KW - differentiation of chondrocytes KW - TGF-β subtypes KW - BMP-7 Y1 - 2012 U6 - https://doi.org/10.4172/2153-0777.S2-002 SN - 2153-0777 N1 - Special Issue Article VL - S2 IS - 002 ER - TY - CHAP A1 - Lehmann, Mario A1 - Voß, Fränzi A1 - Martin, Frank A1 - Schläger, Peter A1 - Anderer, Ursula T1 - Chondrogenic microtissues in the lab & for the clinic T2 - 3D cell culture 2016, book of abstracts, DECHEMA Biotechnologie KW - in vitro cartilage defect KW - in vitro therapy model KW - chondrocyte-derived cell line Y1 - 2016 SN - 978-3-89746-182-6 SP - 52 EP - 53 PB - DECHEMA e.V. CY - Frankfurt am Main ER - TY - GEN A1 - Berg, Heinz Peter A1 - Himmelberg, Axel A1 - Lehmann, Mario A1 - Dückershoff, Roland A1 - Neumann, Mathias T1 - The Turbo-Fuel-Cell 1.0 – family concept - Compact Micro Gas Turbine (MGT) – Solid Oxide Fuel Cell (SOFC) energy converters in the 100 - 500 kW electrical power range for the future T2 - IOP conference series : Materials Science and Engineering N2 - The “Turbo-Fuel-Cell-Technology” has been described as a MGT-SOFC hybrid system consisting of a recuperated micro gas turbine (MGT) process with an embedded solid oxide fuel cell (SOFC) subsystem. SOFC stacks are connected to “SOFC stack grapes” and are equipped with the so called HEXAR-Module. This module is composed of a high-temperature heat exchanger (HEX), an afterburner (A) and a steam reformer (R). The MGT-concept is based on a generator driven directly by the turbomachine and a recuperator, which returns the exhaust heat to the pressurized compressor outlet air. This provides the necessary base for a highly effective, pure MGT process and the “MGT-SOFC-high-efficiency process”. This paper describes the concept and the thermodynamic background of a highly effective and compact design of the “Turbo-Fuel-Cell 1.0-Family” in the electrical performance class from 100 to 500kW. The technological state of the system is shown and a rating of the system with comparative parameters is discussed. It becomes visible that all necessary basic technologies should be available and that the technology (for stationary applications) can have the “entry into services (E.I.S.)” in the next 10 years. The MGT-SOFC performance map under different operation conditions is discussed. This article also provides an overview of the research on MGT-SOFC-Systems and the scenario of an energy supply network and a mobile energy conversion of the future introduction. KW - MGT-SOFC KW - Brennstoffzellen KW - Mikrogasturbinen KW - Hybrid Y1 - 2018 UR - http://iopscience.iop.org/article/10.1088/1757-899X/297/1/012004 U6 - https://doi.org/doi:10.1088/1757-899X/297/1/012004 SN - 1757-899X VL - 297 ER -