TY - GEN A1 - Heinrich, Ingo A1 - Balanzategui, Daniel A1 - Bens, Oliver A1 - Blasch, Gerald A1 - Blume, Theresa A1 - Böttcher, Falk A1 - Borg, Erik A1 - Brademann, Brian A1 - Brauer, Achim A1 - Conrad, Christopher A1 - Dietze, Elisabeth A1 - Dräger, Nadine A1 - Fiener, Peter A1 - Gerke, Horst H. A1 - Güntner, Andreas A1 - Heine, Iris A1 - Helle, Gerhard A1 - Herbrich, Marcus A1 - Harfenmeister, Katharina A1 - Heußner, Karl-Uwe A1 - Hohmann, Christian A1 - Itzerott, Sibylle A1 - Jurasinski, Gerald A1 - Kaiser, Knut A1 - Kappler, Christoph A1 - Koebsch, Franziska A1 - Liebner, Susanne A1 - Lischeid, Gunnar A1 - Merz, Bruno A1 - Missling, Klaus Dieter A1 - Morgner, Markus A1 - Pinkerneil, Sylvia A1 - Plessen, Birgit A1 - Raab, Thomas A1 - Ruhtz, Thomas A1 - Sachs, Torsten A1 - Sommer, Michael A1 - Spengler, Daniel A1 - Stender, Vivien A1 - Stüve, Peter A1 - Wilken, Florian T1 - Interdisciplinary Geo-ecological Research across Time Scales in the Northeast German Lowland Observatory (TERENO-NE) T2 - Vadose Zone Journal Y1 - 2018 U6 - https://doi.org/10.2136/vzj2018.06.0116 SN - 1539-1663 VL - 17 IS - 1 SP - 1 EP - 25 ER - TY - CHAP A1 - Seifarth, Olaf A1 - Walczyk, Christian A1 - Lupina, Grzegorz A1 - Dabrowski, Jaroslaw A1 - Weidner, Günter A1 - Zaumseil, Peter A1 - Schmeißer, Dieter A1 - Storck, Peter A1 - Müssig, Hans-Joachim A1 - Schroeder, Thomas T1 - On the electronic and dielectric characterisation of thin cubic PrO2 layers on Silicon T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 43 N2 - For the integration of 100 % Ge onto the Si platform, a buffer oxide approach has been developed recently, using rare earth oxides to tune the lattice constant between the Si and the Ge. Among these buffer oxides, PrO2 is a prospective candidate with high quality crystalline growth on Si, moderated by an interfacial Pr-silicate between. In order to specify electronic properties of thin PrO2 and its interface on Si(111), especially the width of the band gap, we performed synchrotron radiation based XPS, UPS and XAS measurements at the U49/2 PGM 2 beamline at BESSY II and correlate the results with our structural characterisation performed by TEM and XRD. In order to evaluate the dielectric properties of thin PrO2 layers on Si(111), we performed temperature-, time-, voltage-, and layer thickness-dependent leakage current measurements (J-V). Here, we identified relaxation behaviour in the leakage current, successfully addressed to defect like states inside the Pr-silicate interface layer, corroborated by frequency dependent capacitance versus voltage (C-V) measurements. Y1 - 2008 UR - http://www.dpg-verhandlungen.de/year/2008/conference/berlin/part/df/session/12/contribution/6 SN - 0420-0195 SP - S. 196 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - GEN A1 - Lupina, Grzegorz A1 - Dabrowski, Jarek Marek A1 - Formanek, Peter A1 - Schmeißer, Dieter A1 - Sorge, Roland A1 - Wenger, Christian A1 - Zaumseil, Peter A1 - Müssig, Hans-Joachim T1 - Solid-state reaction between Pr and SiO2 studied by photoelectron spectroscopy and ab initio calculations T2 - Materials Science in Semiconductor Processing N2 - We report on the structural and electrical properties of Pr-based high-k dielectric films fabricated by solid-state reaction between metallic Pr and SiO2 underlayers. A non-destructive depth profiling using synchrotron radiation excited photoelectron spectroscopy (SR-PES), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) were employed to examine the chemical composition and microstructure. Ab initio calculations were done to gain insight into the physical processes involved. SR-PES results indicate that Pr deposition at room temperature (RT) leads to the formation of a Pr silicide and a Pr oxide, what is in good agreement with the scenario expected from ab initio calculations. As revealed by TEM and electrical measurements, oxidation of the reacted structures, followed by annealing, results in a stacked dielectric composed of a SiO2-based buffer with an enhanced permittivity and a Pr silicate film with a high dielectric constant. The leakage current density of 10-4 A/cm2 was measured for stacks with capacitance equivalent thickness (CET) of 1.5 nm prepared by evaporation of the Pr layer on a 1.8 nm SiO2 film, followed by oxidation in air ambient and annealing in N2 atmosphere. The capacitance-voltage (C-V) curves exhibit a large flatband voltage (VFB) shift indicating the presence of a positive charge in the stack. Switching away from the Al contacts to Au gate electrodes introduces a significant reduction of the VFB by 1.3 eV, what is much more than the change expected from the work function difference between Al and Au (not, vert, similar0.9 eV). This in turn implies that VFB is strongly affected by the gate interface electrode. KW - High-k dielectrics KW - Photoelectron spectroscopy KW - Interface reaction Y1 - 2004 SN - 1369-8001 VL - 7 IS - 4-6 SP - 215 EP - 220 ER - TY - GEN A1 - Müssig, Hans-Joachim A1 - Dabrowski, Jarek Marek A1 - Wenger, Christian A1 - Lupina, Grzegorz A1 - Sorge, Roland A1 - Formanek, Peter A1 - Zaumseil, Peter A1 - Schmeißer, Dieter T1 - Ultrathin Dielectric Films Grown by Solid Phase Reaction of Pr with SiO2 T2 - MRS Proceedings Y1 - 2004 SN - 1946-4274 VL - 811 ER - TY - GEN A1 - Lützner, Jörg A1 - Lange, Toni A1 - Schmitt, Jochen A1 - Kopkow, Christian A1 - Dreinhöfer, Karsten E A1 - Friederich, Niklaus F. A1 - Gravius, Sascha A1 - Heller, Karl-Dieter A1 - Hube, Robert A1 - Gromnica-Ihle, Erika A1 - Kirschner, Stephan A1 - Kladny, Bernd A1 - Kremer, Michael A1 - Linke, Maike A1 - Malzahn, Jürgen A1 - Sabatowski, Rainer A1 - Scharf, Hanns-Peter A1 - Stöve, Johannes A1 - Wagner, Richard A1 - Günther, Klaus-Peter T1 - [The S2k guideline: Indications for knee endoprosthesis : Evidence and consent-based indications for total knee arthroplasty] T2 - Der Orthopäde Y1 - 2018 U6 - https://doi.org/10.1007/s00132-018-3612-x SN - 1433-0431 SN - 0085-4530 VL - 47 IS - 9 SP - 777 EP - 781 ER - TY - CHAP A1 - Eberhard, Peter A1 - Bestle, Dieter T1 - Computer-Aided Optimization of Mechanical Systems Y1 - 2005 ER - TY - CHAP A1 - Dutta, Amit Kumar A1 - Flassig, Peter Michael A1 - Bestle, Dieter T1 - A Non-Dimensional Quasi-3D Blade Design approach with respect to Aerodynamic Criteria T2 - Proceedings of the ASME Turbo Expo 2008, presented at the 2008 ASME Turbo Expo, June 9 - 13, 2008, Berlin, Germany, Vol 6., Part C Y1 - 2008 SN - 978-0-7918-4316-1 SP - 2445 EP - 2455 PB - ASME CY - New York, NY ER - TY - CHAP A1 - Keskin, Akin A1 - Swoboda, Marius A1 - Flassig, Peter Michael A1 - Dutta, Amit Kumar A1 - Bestle, Dieter T1 - Accelerated Industrial Blade Design Based on Multi-Objective Optimization Using Surrogate Model Methodology T2 - Proceedings of the ASME Turbo Expo 2008, presented at the 2008 ASME Turbo Expo, June 9 - 13, 2008, Berlin, Germany, Vol 6., Part C KW - Optimization KW - Blade Design Y1 - 2008 SN - 978-0-7918-4316-1 SP - 2339 EP - 2349 PB - ASME CY - New York, NY ER - TY - CHAP A1 - Flassig, Peter Michael A1 - Bestle, Dieter T1 - Robust 2D Compressor Blading with respect to Measured Manufacturing Uncertainties Y1 - 2009 ER - TY - CHAP A1 - Bestle, Dieter A1 - Flassig, Peter Michael T1 - Optimal Aerodynamic Compressor Blade Design Considering Manufacturing Noise Y1 - 2010 ER - TY - CHAP A1 - Dutta, Amit Kumar A1 - Flassig, Peter Michael A1 - Bestle, Dieter T1 - Multi-Objective Blade Design using a Quasi-3D Non-Dimensional Parameterization Approach KW - Quasi-3D Blading KW - Compressor KW - Multi-Objective Design Y1 - 2007 ER - TY - CHAP A1 - Flassig, Peter Michael A1 - Dutta, Amit Kumar A1 - Bestle, Dieter T1 - Robustheits- und zuverlässigkeitsbasierte Mehrkriterien-Optimierung von Verdichterschaufeln Y1 - 2008 ER - TY - CHAP A1 - Dutta, Amit Kumar A1 - Flassig, Peter Michael A1 - Bestle, Dieter A1 - Keskin, Akin A1 - Swoboda, Marius T1 - Validierung optimierter Verdichterschaufeln mit Hilfe der 3D-CFD T2 - Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2 Y1 - 2008 N1 - DLRK 2008-081222 SP - 1023 EP - 1033 PB - Dt. Ges. für Luft- und Raumfahrt CY - Bonn ER - TY - CHAP A1 - Flassig, Peter Michael A1 - Dutta, Amit Kumar A1 - Bestle, Dieter T1 - Robuste Auslegung von Verdichterschaufeln T2 - Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2 Y1 - 2008 N1 - DLRK 2008-081174 SP - 1001 EP - 1010 PB - Dt. Ges. für Luft- und Raumfahrt CY - Bonn ER - TY - CHAP A1 - Sommer, Lars A1 - Flassig, Peter Michael A1 - Dutta, Amit Kumar A1 - Bestle, Dieter T1 - Krümmungs-Nebenbedingungen in der aerodynamischen Mehrkriterien-Optimierung von Verdichterschaufelprofilen T2 - Deutscher Luft- und Raumfahrtkongress 2008, Darmstadt, 23. bis 25. September 2008, Bd. 2 Y1 - 2008 N1 - 2008-081195 SP - 1011 EP - 1022 PB - Dt. Ges. für Luft- und Raumfahrt CY - Bonn ER - TY - CHAP A1 - Dutta, Amit Kumar A1 - Flassig, Peter Michael A1 - Bestle, Dieter T1 - Validation of Q3D-Blade Optimisation Results by 3D-CFD Y1 - 2008 ER - TY - CHAP A1 - Flassig, Peter Michael A1 - Dutta, Amit Kumar A1 - Bestle, Dieter T1 - Robustheit und Zuverlässigkeit in der aerodynamischen Verdichterauslegung Y1 - 2008 ER - TY - CHAP A1 - Dutta, Amit Kumar A1 - Flassig, Peter Michael A1 - Otto, Dierk A1 - Bestle, Dieter T1 - Process Integration for Multidisciplinary Multi-objective Blade Design Y1 - 2007 ER - TY - CHAP A1 - Flassig, Peter Michael A1 - Bestle, Dieter T1 - Probabilistische Studien zur robusten aerodynamischen Verdichterauslegung Y1 - 2009 ER - TY - CHAP A1 - Gehrlich, Lukas A1 - Ohsiek, Susanne A1 - Klein, M. A1 - Geiss, M. A1 - Friedemann, Michael A1 - Kücher, Peter A1 - Schmeißer, Dieter T1 - Ultrathin TaN/Ta barrier modifications to fullfill next technology node requirements T2 - 2011 IEEE International Interconnect Technology Conference and 2011 Materials for Advanced Metallization (IITC/MAM 2011), Dresden, Germany, 8 - 12 May 2011 Y1 - 2011 SN - 978-1-4577-0503-8 U6 - https://doi.org/10.1109/IITC.2011.5940322 SP - 82 EP - 84 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Osterrieder, Peter A1 - Werner, Dieter A1 - Simon, Marc T1 - Konzepte der Tragwerksplanung im Kraftwerksbau Y1 - 2011 ER - TY - CHAP A1 - Narra, Satyanarayana A1 - Logsch, Florian A1 - Glaser, Claudia A1 - Ay, Peter A1 - Döhling, Frank A1 - Leistner, Diana A1 - Strube, Dieter ED - Thrän, Daniela ED - Pfeiffer, Diana T1 - LignoBioFuel : Entwicklung eines Verfahrens zur Herstellung von stofflich und energetisch nutzbaren Bioagglomeraten auf der Basis von Lignin T2 - Effizient, umweltverträglich, dezentral - neue Konzepte für die Nutzung von biogenen Festbrennstoffen, Bd. 2 Y1 - 2014 SP - 85 EP - 99 PB - DBFZ, Dt. Biomasseforschungszentrum CY - Leipzig ER - TY - GEN A1 - Lutter, Anne-Helen A1 - Hempel, Ute A1 - Anderer, Ursula A1 - Dieter, Peter T1 - Biphasic influence of PGE2 on the resorption activity of osteoclast-like cells derived from human peripheral blood monocytes and mouse RAW264.7 T2 - Prostaglandins, Leukotrienes and Essential Fatty Acids KW - osteoclastic differentiation Y1 - 2016 U6 - https://doi.org/10.1016/j.plefa.2016.03.017 SN - 1532-2823 SN - 0952-3278 VL - 111 SP - 1 EP - 7 ER - TY - GEN A1 - Kammerer, Sarah A1 - Sokolowski, Armin Andreas A1 - Hackl, Hubert A1 - Platzer, Dieter A1 - Jahn, Stephan Wenzel A1 - El-Heliebi, Amin A1 - Schwarzenbacher, Daniela A1 - Stiegelbauer, Verena A1 - Pichler, Martin A1 - Rezania, Simin A1 - Fiegl, Heidelinde A1 - Peintinger, Florentia A1 - Regitnig, Peter A1 - Höfler, Gerald A1 - Schreibmayer, Wolfgang A1 - Bauernhofer, Thomas T1 - KCNJ3 is a new independent prognostic marker for estrogen receptor positive breast cancer patients T2 - OncoTarget : open access impact journal N2 - Numerous studies showed abnormal expression of ion channels in different cancer types. Amongst these, the potassium channel gene KCNJ3 (encoding for GIRK1 proteins) has been reported to be upregulated in tumors of patients with breast cancer and to correlate with positive lymph node status. We aimed to study KCNJ3 levels in different breast cancer subtypes using gene expression data from the TCGA, to validate our findings using RNA in situ hybridization in a validation cohort (GEO ID GSE17705), and to study the prognostic value of KCNJ3using survival analysis. In a total of > 1000 breast cancer patients of two independent data sets we showed a) that KCNJ3 expression is upregulated in tumor tissue compared to corresponding normal tissue (p < 0.001), b) that KCNJ3 expression is associated with estrogen receptor (ER) positive tumors (p < 0.001), but that KCNJ3 expression is variable within this group, and c) that ER positive patients with high KCNJ3 levels have worse overall (p < 0.05) and disease free survival probabilities (p < 0.01), whereby KCNJ3 is an independent prognostic factor (p <0.05). In conclusion, our data suggest that patients with ER positive breast cancer might be stratified into high risk and low risk groups based on the KCNJ3 levels in the tumor. Y1 - 2016 U6 - https://doi.org/10.18632/oncotarget.13224 VL - 7 IS - 51 SP - 84705 EP - 84717 ER - TY - CHAP A1 - Hendler, Marco A1 - Extra, Simon A1 - Lockan, Michael A1 - Bestle, Dieter A1 - Flassig, Peter Michael T1 - Compressor Design in the Context of Holistic Aero Engine Design T2 - 2017 AIAA Aviation Forum, Denver, AIAA-2017-3334, 2017 KW - Holistic Optimization KW - Aero Engines KW - Computational Fluid Dynamics Y1 - 2017 U6 - https://doi.org/10.2514/6.2017-3334 ER - TY - CHAP A1 - Kot, Małgorzata A1 - Kegelmann, Lukas A1 - Kus, Peter A1 - Tsud, Nataliya A1 - Matolínová, Iva A1 - Albrecht, Steve A1 - Matolin, Vladimir A1 - Schmeißer, Dieter T1 - Room temperature atomic layer deposition for perovskite solar cells T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Band 53,3 N2 - After few years of efficiency driven research on perovskite solar cells, the focus now is shifting to understand the underlying processes governing the high efficiency and also to obtain long-term stable devices. Among various deposition methods, atomic layer deposition (ALD) may represent one of the best options, being possible to coat substrates in a very efficient way and at very low temperatures. In our previous work [1] we reported that the efficiency of the solar cell containing aged perovskite film can be enhanced twice while covering the perovskite with a thin ALD alumina film at room temperature. In this work, the chemical, electronic and morphological properties of the fresh perovskite film treated by ALD pulses of the trimethylaluminium and water at room temperature investigated using X-ray Photoelectron Spectroscopy and Field Emission Scanning Electron Microscopy will be discused and correlated with the solar cells performance and stability. [1] M. Kot et al., ChemSusChem 2016, 9, 3401. KW - Perovskite solar cells KW - atomic layer deposition KW - X-Ray photoelectron spectroscopy (XPS) KW - atomic force microscopy KW - field emission scanning electron microscopy KW - photo-conversion efficiency Y1 - 2018 SN - 0420-0195 SP - S. 174 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - GEN A1 - Hendler, Marco A1 - Bestle, Dieter A1 - Flassig, Peter Michael T1 - Component-specific Engine Design Taking into Account Holistic Design Aspects T2 - International Journal of Turbomachinery, Propulsion and Power Y1 - 2018 U6 - https://doi.org/10.3390/ijtpp3020012 SN - 2504-186X N1 - This article belongs to the Special Issue Selected Papers from the 17th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery VL - 3 IS - 2 SP - 1 EP - 16 ER - TY - GEN A1 - Extra, Simon A1 - Hendler, Marco A1 - Bestle, Dieter A1 - Flassig, Peter Michael T1 - Verbesserte Vorauslegung des Kerntriebwerks mithilfe eines kaskadierten Optimierungsprozesses T2 - Luft- und Raumfahrt - Digitalisierung und Vernetzung, Deutscher Luft- und Raumfahrtkongress 2018, 04.-06. September 2018, Friedrichshafen, Graf-Zeppelin-Haus Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:101:1-2020011711475557798029 UR - https://www.dglr.de/publikationen/2020/480163.pdf N1 - DLRK2018-480163 PB - Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V. CY - Bonn ER - TY - GEN A1 - Kot, Małgorzata A1 - Kegelmann, Lukas A1 - Köbler, Hans A1 - Vorokhta, Mykhailo A1 - Escudero, Carlos A1 - Kúš, Peter A1 - Šmíd, Břetislav A1 - Tallarida, Massimo A1 - Albrecht, Steve A1 - Abate, Antonio A1 - Matolínová, Iva A1 - Schmeißer, Dieter A1 - Flege, Jan Ingo T1 - In situ Near-Ambient Pressure X-ray Photoelectron Spectroscopy Reveals the Influence of Photon Flux and Water on the Stability of Halide Perovskite T2 - ChemSusChem N2 - For several years, scientists have been trying to understand the mechanisms that reduce the long‐term stability of perovskite solar cells. In this work, we examined the effect of water and photon flux on the stability of CH3NH3PbI3 perovskite films and solar cells using in situ near‐ambient pressure X‐ray photoelectron spectroscopy (NAP‐XPS), field emission scanning electron microscopy (FESEM), and current density–voltage (J–V) characterization. The used amount of water vapor (up to 1 mbar) had a negligible impact on the perovskite film. The higher the photon flux, the more prominent were the changes in the NAP‐XPS and FESEM data; also, a faster decline in power conversion efficiency (PCE) and a more substantial hysteresis in the J‐V characteristics were observed. Based on our results, it can be concluded that the PCE decrease originates from the creation of Frenkel pair defects in the perovskite film under illumination. The stronger the illumination, the higher the number of Frenkel defects, leading to a faster PCE decline and more substantial hysteresis in the J‐V sweeps. KW - field emission scanning electron microscopy (FESEM) KW - Frenkel defects KW - near-ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) KW - perovskite KW - photon-induced degradation Y1 - 2020 U6 - https://doi.org/10.1002/cssc.202001527 SN - 1864-5631 SN - 1864-564X VL - 13 IS - 21 SP - 5722 EP - 5730 ER - TY - CHAP A1 - Extra, Simon A1 - Lockan, Michael A1 - Bestle, Dieter A1 - Flassig, Peter Michael ED - Andrès-Pèrez, Esther ED - González, Leo M. ED - Periaux, Jacques ED - Gauger, Nicolas R. ED - Quagliarella, Domenico ED - Giannakoglou, Kyriakos C. T1 - Coupled Subsystem Optimiziation for Preliminary Core Engine Design T2 - Evolutionary and Deterministic Methods for Design Optimization and Control With Applications to Industrial and Societal Problems Y1 - 2018 SN - 978-3-319-89889-6 SN - 978-3-319-89890-2 U6 - https://doi.org/10.1007/978-3-319-89890-2_33 SP - 513 EP - 527 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Extra, Simon A1 - Lockan, Michael A1 - Bestle, Dieter A1 - Flassig, Peter Michael T1 - Coupled Subsystem Optimization for Preliminary Core Engine Design T2 - Evolutionary and deterministic methods for design optimization and control with applications to industrial and societal problems, Sep. 13-15, 2017 in Madrid, Spain, EUROGEN 2017, Book of abstracts Y1 - 2017 SN - 978-84-697-5112-1 PB - Technical University CY - Madrid ER - TY - CHAP A1 - Hendler, Marco A1 - Bestle, Dieter A1 - Flassig, Peter Michael T1 - Cloning Strategy for Aerodynamic Compressor Design based on Throughflow Analysis T2 - Proceedings of Montreal 2018, Global Power and Propulsion Forum, 7-9.05.2018 N2 - Due to their high complexity, aero engine development is a time-consuming and cost-intensive process. Therefore, pre-developed proven aerodynamic and geometric compressor information is often used as starting point and transferred to new compressor designs. In the present paper, a new approach for aerodynamic cloning of an already existing compressor flow to a new compressor geometry by use of a streamline curvature based Throughflow solver is presented. Parameterized compressor quantities are automatically modified with the help of optimization strategies, and the resulting compressor aerodynamics are compared to a reference design in each iteration step. The target is to minimize the discrepancy between reference design and new design regarding essential flow parameters like de Haller number, Mach number etc., and thereby to reproduce the aerodynamic image of the reference design. Thus, already collected experience from existing compressor flow fields can be used to reduce costs for developing as well as testing of new compressor configurations. Conducted investigations show a notable acceleration of the design process in comparison to former strategies starting from scratch while achieving an acceptable compliance of aerodynamic parameters. Y1 - 2018 UR - https://gpps.global/documents/events/montreal18/papers/design-modeling/GPPS-NA-2018-0144.pdf N1 - GPPS-NA-2018-0144 ER - TY - CHAP A1 - Extra, Simon A1 - Lockan, Michael A1 - Bestle, Dieter A1 - Flassig, Peter Michael T1 - A Comparison of Strategies for Efficient Core Engine Optimization with Coupled Subsystems T2 - Proceedings of Montreal 2018, Global Power and Propulsion Forum, 7-9.05.2018 N2 - The present paper compares four different optimization strategies for decoupled optimization in the context of preliminary core engine design for aero engines. An optimization with the AAO (All-At-Once) approach is performed as a baseline and compared against the performance and results of three cascaded optimization strategies: CO (Collaborative Optimization), BLISS 2000 (Bi-Level Integrated System Synthesis) and ISOC (Interface Segmentation Optimization Concept). The optimization problem is based on a thermodynamic core engine model representing an industrial application example. The results are assessed with respect to typical requirements for multidisciplinary core engine design. The impact of the used optimization strategy on the performance of the optimization concept is investigated and discussed. Y1 - 2018 UR - https://gpps.global/documents/events/montreal18/papers/design-modeling/GPPS-NA-2018-0097.pdf N1 - GPPS-NA-2018-0097 ER - TY - CHAP A1 - Lutter, Anne-Helen A1 - Hempel, Ute A1 - Dieter, Peter A1 - Anderer, Ursula T1 - Cost-efficient diagnostic platform to measure osteoclast activity T2 - 35. Jahrestagung der Deutschen Gesellschaft für Klinische Mikrozirkulation und Hämorheologie, Mainz, 2016 Y1 - 2016 U6 - https://doi.org/10.13140/RG.2.2.10550.19528 ER - TY - GEN A1 - Weber, Franziska A1 - Müller, Carsten A1 - Grünberg, Christian A1 - Thiel, Christian A1 - Bahns, Carolin A1 - Brannath, Werner A1 - Dietrich, Freya A1 - Dieter, Valerie A1 - Färber, Francesca A1 - Gellert, Paul A1 - Kloek, Corelien A1 - Kloep, Stephan A1 - Kopkow, Christian A1 - Krauß, Inga A1 - Rasche, Peter A1 - Rothgang, Heinz A1 - Veenhof, Cindy A1 - Vollmar, Horst Christian A1 - Peschke, Dirk T1 - Smartphone-assistiertes Trainings- und Edukationsprogramm für Menschen mit Hüft- und/oder Kniearthrose (SmArt-E): Studienprotokoll für eine multizentrische, randomisierte, kontrollierte Studie T2 - 21. Deutscher Kongress für Versorgungsforschung (DKVF), 05.10. - 07.10.2022, Potsdam Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0183-22dkvf2836 ER - TY - GEN A1 - Kot, Małgorzata A1 - Henkel, Karsten A1 - Naumann, Franziska A1 - Gargouri, Hassan A1 - Tarnawska, Lidia Lupina A1 - Wilker, Viola A1 - Kus, Peter A1 - Pożarowska, Emilia A1 - Garain, Samiran A1 - Rouissi, Zied A1 - Schmeißer, Dieter T1 - Comparison of plasma-enhanced atomic layer deposition AlN films prepared with different plasma sources T2 - Journal of Vacuum Science and Technology A N2 - A comparative study of thin aluminum nitride (AlN) films deposited by plasma-enhanced atomic layer deposition in the SENTECH SI ALD LL system applying either a direct inductively coupled plasma (ICP) or an indirect capacitively coupled plasma (CCP) source is presented. The films prepared with the ICP source (based on a planar triple spiral antenna) exhibit improved properties concerning the growth rate per cycle, total cycle duration, homogeneity, refractive index, fixed and mobile electrical charges, and residual oxygen content compared to the CCP source, where the comparison is based on the applied plasma power of 200 W. The increase of the plasma power to 600 W in the ICP process significantly reduces the residual oxygen content and enhances the electrical breakdown field. The AlN layers grown under these conditions, with a growth rate per cycle of 1.54 Å/cycle, contain residual oxygen and carbon concentrations of about 10% and 4%, respectively, and possess a refractive index of 2.07 (at 632.8 nm). KW - Plamsa-enhanced atomic layer deposition (PEALD) KW - inductively coupled KW - capacitively coupled KW - plamsa source KW - ellipsometry KW - X-ray photoelectron spectroscopy (XPS) KW - X-ray diffraction (XRD) KW - Field emission scanning electron microscopy (FESEM) KW - capacitance-voltage (CV) KW - atomic force microscopy Y1 - 2019 U6 - https://doi.org/10.1116/1.5079628 SN - 0734-2101 SN - 1520-8559 VL - 37 IS - 2 ER - TY - GEN A1 - Kot, Małgorzata A1 - Henkel, Karsten A1 - Müller, Klaus A1 - Kegelmann, Lukas A1 - Albrecht, Steve A1 - Tsud, Nataliya A1 - Kús, Peter A1 - Matolinová, Iva A1 - Schmeißer, Dieter T1 - Al2O3-Atomic Layer Deposited Films on CH3NH3PbI3 : Intrinsic Defects and Passivation Mechanisms T2 - Energy Technology , The Journal of Physical Chemistry C N2 - The initial interaction of atomic layer deposited films of Al2O3 at room temperature on CH3NH3PbI3 (MAPI) films is studied. Synchrotron radiation–based photoelectron spectroscopy is applied to analyze the initial changes in the Al-derived features by comparing samples with different Al2O3 film thicknesses. It is found that polarons and excitons, both intrinsic defects of Al2O3, play a key role in the interface formation. The polaronic states uptake a charge from the MAPI substrate. This charge is transferred to and stabilized in the excitonic state of Al2O3 which is assigned to predominately tetrahedral coordinated Al sites. This charge transfer is initiated by vacancies present in the MAPI substrate and stabilizes a covalent bonding at the Al2O3–MAPI interface but also causes a roughening of the interface which may lead to the formation of grain boundaries. On top of the rough interface, 2D Al2O3 clusters with an increasing number of octahedrally coordinated Al—O bonds grow, and with increasing Al2O3 coverage, they introduce self-healing of the structural defects. KW - charge donation and transfer cycles KW - covalent interfaces KW - defect monitoring KW - model of Al2O3–CH3NH3PbI3 interactions KW - resonant photoelectron spectroscopy Y1 - 2019 U6 - https://doi.org/10.1002/ente.201900975 SN - 2194-4288 SN - 2194-4296 VL - 7 IS - 11 ER - TY - GEN A1 - Kot, Małgorzata A1 - Kegelmann, Lukas A1 - Das, Chittaranjan A1 - Kus, Peter A1 - Tsud, Nataliya A1 - Matolínová, Iva A1 - Albrecht, Steve A1 - Matolin, Vladimir A1 - Schmeißer, Dieter T1 - Room temperature atomic layer deposited Al₂O₃ improves perovskite solar cells efficiency over time T2 - ChemSusChem N2 - Electrical characterisation of perovskite solar cells consisting of room-temperature atomic-layer-deposited aluminium oxide (RT-ALD-Al₂O₃) film on top of a methyl ammonium lead triiodide (CH₃NH₃PbI₃) absorber showed excellent stability of the power conversion efficiency (PCE) over along time. Under the same environmental conditions (for 355 d), the average PCE of solar cells without the ALD layer decreased from 13.6 to 9.6 %, whereas that of solar cells containing 9 ALD cycles of depositing RT-ALD-Al₂O₃on top of CH₃NH₃PbI₃ increased from 9.4 to 10.8 %. Spectromicroscopic investigations of the ALD/perovskite interface revealed that the maximum PCE with the ALD layer is obtained when the so-called perovskite cleaning process induced by ALD precursors is complete. The PCE enhancement over time is probably related to a self-healing process induced by the RT-ALD-Al₂O₃ film. This work may provide a new direction for further improving the long-term stability and performance of perovskite solar cells. KW - Perovskite Solar Cells (PSCs) KW - Atomic layer deposition (ALD) KW - long time stabilty KW - X-Ray photoelectron spectroscopy (XPS) KW - Field-emission scanning electron microscopy (FESEM) Y1 - 2018 U6 - https://doi.org/10.1002/cssc.201801434 SN - 1864-5631 SN - 1864-564X VL - 11 IS - 20 SP - 3640 EP - 3648 ER - TY - GEN A1 - Kramm, Ulrike Ingrid A1 - Herrmann-Geppert, Iris A1 - Fiechter, Sebastian A1 - Zehl, Gerald A1 - Zizak, Ivo A1 - Dorbandt, Iris A1 - Schmeißer, Dieter A1 - Bogdanoff, Peter T1 - Effect of iron carbide formation on the number of active sites in Fe-N-C catalysts for the oxygen reduction reaction in acidic media T2 - Journals of materials chemistry A KW - Oxygen reduction reaction (ORR) KW - Fe-N-C catalyst KW - acidic media KW - high-temperature X-ray diffraction (HT-XRD) KW - thermogravimetry coupled with mass-spectroscopy (TG-MS) Y1 - 2014 U6 - https://doi.org/10.1039/c3ta13821f SN - 2050-7488 SN - 2050-7496 IS - 8 SP - 2663 EP - 2670 ER - TY - GEN A1 - Kramm, Ulrike Ingrid A1 - Lefèvre, Michel A1 - Bogdanoff, Peter A1 - Schmeißer, Dieter A1 - Dodelet, Jean-Pol T1 - Analyzing Structural Changes of Fe-N-C Cathode Catalysts in PEM Fuel Cell by Mößbauer Spectroscopy of Complete Membrane-Electrode-Assemblies T2 - The Journal of Physical Chemistry Letters N2 - The applicability of analyzing by Mößbauer spectroscopy the structural changes of Fe–N–C catalysts that have been tested at the cathode of membrane electrode assemblies in proton exchange membrane (PEM) fuel cells is demonstrated. The Mößbauer characterization of powders of the same catalysts was recently described in our previous publication. A possible change of the iron species upon testing in fuel cell was investigated here by Mößbauer spectroscopy, energy-dispersive X-ray cross-sectional imaging, and neutron activation analysis. Our results show that the absorption probability of γ rays by the iron nuclei in Fe–N–C is strongly affected by the presence of Nafion and water content. A detailed investigation of the effect of an oxidizing treatment (1.2 V) of the non-noble cathode in PEM fuel cell indicates that the observed activity decay is mainly attributable to carbon oxidation causing a leaching of active iron sites hosted in the carbon matrix. KW - iron-based catalyst KW - iron−nitrogen−carbon catalyst KW - non-noble metal catalyst KW - nonprecious metal catalyst KW - oxygen reduction reaction KW - ORR KW - polymer electrolyte membrane fuel cell KW - PEM-FC KW - degradation Y1 - 2014 U6 - https://doi.org/10.1021/jz501955g SN - 1948-7185 VL - 2014 IS - 5 SP - 3750 EP - 3756 ER - TY - GEN A1 - Indra, Arindam A1 - Menezes, Prashanth W. A1 - Sahraie, Nastaran Ranjbar A1 - Bergmann, Arno A1 - Das, Chittaranjan A1 - Tallarida, Massimo A1 - Schmeißer, Dieter A1 - Strasser, Peter A1 - Driess, Matthias T1 - Unification of Catalytic Water Oxidation and Oxygen Reduction Reactions: Amorphous Beat Crystalline Cobalt Iron Oxides T2 - Journal of the American Chemical Society N2 - Catalytic water splitting to hydrogen and oxygen is considered as one of the convenient routes for the sustainable energy conversion. Bifunctional catalysts for the electrocatalytic oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) are pivotal for the energy conversion and storage, and alternatively, the photochemical water oxidation in biomimetic fashion is also considered as the most useful way to convert solar energy into chemical energy. Here we present a facile solvothermal route to control the synthesis of amorphous and crystalline cobalt iron oxides by controlling the crystallinity of the materials with changing solvent and reaction time and further utilize these materials as multifunctional catalysts for the unification of photochemical and electrochemical water oxidation as well as for the oxygen reduction reaction. Notably, the amorphous cobalt iron oxide produces superior catalytic activity over the crystalline one under photochemical and electrochemical water oxidation and oxygen reduction conditions. KW - photochemical KW - electrochemical KW - catalyst KW - water oxidation reaction KW - oxygen reduction reaction KW - cobalt iron oxides KW - control of crytallinity Y1 - 2014 U6 - https://doi.org/10.1021/ja509348t SN - 1520-5126 SN - 0002-7863 VL - 2014 IS - 136 SP - 17530 EP - 17536 ER - TY - GEN A1 - Gerlich, Lukas A1 - Ohsiek, Susanne A1 - Klein, Christoph A1 - Geiß, Mario A1 - Friedemann, Michael A1 - Kücher, Peter A1 - Schmeißer, Dieter T1 - Interface engineering for the TaN/Ta barrier film deposition process to control Ta-crystal growth T2 - Microelectronic Engineering N2 - As a consequence of device shrinking the resistivity of the widely used TaN/Ta double barrier layer becomes an increasingly important parameter for device speed beyond the 32 nm technology node. In this study we describe the optimization of the deposition of TaN/Ta stacks in such a way that tantalum nitride layer thickness is minimized and tantalum grows in the favorable conducting alpha-phase. In the first part of the study we usedin situ ARXPS to investigate the growth of different tantalum nitride layers on SiO2 and SiOCH as a function of deposition time, nitrogen flow and deposition power. In the second part we analyzed the crystalline phase of a 20 nm thick tantalum layer deposited on top of the same series of tantalum nitride layers characterized in the growth study. The main findings are the appearance of tan-talum carbide and tantalum silicide as interface species for the deposition on SiOCH and only tantalum silicide for the deposition on SiO2. We found that alpha-tantalum grows preferably on tantalum carbide and nitrogen rich intermediate layers whereas silicide at the interface promotes the growth of beta-tantalum. To verify these findings we studied two additional modifications of the interface. A lower bias power for a deposition of tantalum nitride on SiO2 was used to confirm the role of tantalum silicide and a thermal treatment of a thin tantalum layer on SiOCH was applied to confirm the role of tantalum carbide. Finally, the contact resistance in via chains on patterned wafers for four selected processes showed the same trends as the sheet resistance of the corresponding barrier films on blanket wafer experiments. KW - Tantalum KW - in situ XPS KW - Ta-phase KW - TaNx KW - Barrier KW - Interface Y1 - 2013 U6 - https://doi.org/10.1016/j.mee.2013.01.017 VL - Vol. 106 SP - 63 EP - 68 ER - TY - CHAP A1 - Dudek, Peter A1 - Lupina, Grzegorz A1 - Kozłowski, Grzegorz A1 - Dabrowski, Jarek Marek A1 - Lippert, Gunther A1 - Müssig, Hans-Joachim A1 - Schmeißer, Dieter A1 - Schroeder, Thomas T1 - Band structure and electrical properties of MBE grown HfO2 - based alkaline earth perovskites T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 45 N2 - Ultra thin dielectric films (<20 nm) deposited on TiN electrodes are interesting for MIM capacitor application. High capacitance density and dielectric permittivity must be accompanied by extremely low leakage currents (10−8 A/cm2) at bias 0.5 V. To achieve such low leakage currents, high band gap and proper band alignment is required. Occupied electronic states can be probed with standard laboratory photoemission methods. Probing of unoccupied states is more challenging. Synchrotron based PES in combination with XAS forms a powerful method to study the band alignment. ASAM end station located at the U 49/2 PGM 2 beamline of BESSY II (Berlin) offers excellent conditions for performing such measurements. We investigated HfO2 - based alkaline earth perovskite - BaHfO3 with subsequent admixture of TiO2, resulting in formation of BaHf0.5Ti0.5O3 compound. The analysis of data indicates that band gap for HfO2 is similar to BaHfO3 and amounts 5.8 eV; for BaHf0.5Ti0.5O3 it decreases to 3.8 eV. We conclude that the addition of TiO2 to BaHfO3 increases significantly the dielectric permittivity but also impacts the band gap alignment. The conduction band offset shrinks, influencing the leakage current behavior. Y1 - 2010 UR - http://www.dpg-verhandlungen.de/year/2010/conference/regensburg/part/ds/session/24/contribution/4 SN - 0420-0195 SP - S. 232 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - CHAP A1 - Seifarth, Olaf A1 - Walczyk, Christian A1 - Lupina, Grzegorz A1 - Zaumseil, Peter A1 - Schmeißer, Dieter A1 - Müssig, Hans-Joachim A1 - Schroeder, Thomas T1 - The electronic band diagram of thin PrO2(111) / Pr-silicate buffers on Si(111) and its relevance to dielectric properties T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 44 N2 - Thin dielectric buffers of cubic PrO2(111) on Si(111) are ideally suited to integrate Ge onto Si by moderating the lattice mismatch between the materials. The leakage current across this dielectric buffer is strongly influenced by the electronic band diagram and defects inside the band gap. Therefore, we measured the band offsets, band gaps and defect positions by means of synchrotron radiation based photoemission spectroscopy techniques (XPS and XAS) with special emphasis on the Pr-silicate interface. In a next step we compare the spectroscopic data with information from dielectric studies, based on temperature dependent leakage current studies. We observe a close relation between dielectric properties and the electronic structure. Y1 - 2009 UR - http://www.dpg-verhandlungen.de/year/2009/conference/dresden/part/df/session/6/contribution/5 SN - 0420-0195 SP - S. 136 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - CHAP A1 - Seifarth, Olaf A1 - Wilke, A. A1 - Walczyk, Christian A1 - Dabrowski, Jarek Marek A1 - Zaumseil, Peter A1 - Schmeißer, Dieter A1 - Müssig, Hans-Joachim A1 - Schroeder, Thomas T1 - Band gap and electronic structure determination with XAS and UPS of thin Pr-oxide films on Si(111) T2 - Proceedings of 15th Workshop on Dielectrics in Microelectronics, Bad Saarow, 23 - 25 June 2008, Bad Saarow (Berlin) KW - band gab KW - XAS KW - UPS KW - Si(111) Y1 - 2008 SP - 285 EP - 286 ER - TY - CHAP A1 - Goryachko, Andriy A1 - Beuckert, Guido A1 - Zaumseil, Peter A1 - Wagner, Guenter A1 - Schmeißer, Dieter T1 - Investigations of Pr2O3 growth modes on 4H-SiC(0001) Surfaces T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft N2 - The SiC is suited especially well for high power and high voltage semiconductor devices. In order to increase the reliability against electrical breakdown of metal-insulator-semiconductor (MIS) structures, one needs to use the insulator with possibly higher dielectric constant. Pr2O3 is shown to posses a much higher dielectric constant (equals 30) than traditionally used SiO2. Therefore, Pr2O3/SiC is an excellent material combination for high voltage MIS devices. The 4H-SiC(0001) substrates are characterised with scanning tunneling microscopy, while the Pr2O3 surface - with atomic force microscopy technique. We show distinct growth modes of Pr2O3 film, such as 3D and layer by layer growth. The crystalline structure and film thickness are determined by X-ray diffraction and its chemical composition by X-ray photoelectron spectroscopy. The Pr2O3 film characteristics are optimised for high-quality MIS structures in terms of lateral uniformity, low interface states density and leakage current, as well as physical integrity. KW - SiC KW - Pr2O3 KW - X-ray photoelectron spectroscopy (XPS) KW - X-Ray diffraction Y1 - 2004 UR - http://www.dpg-verhandlungen.de/year/2004/conference/regensburg/part/ds/session/9/contribution/4?lang=de SN - ISSN 0420-0195 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - CHAP A1 - Pöhlmann, Fiete A1 - Bestle, Dieter A1 - Flassig, Peter Michael A1 - Hinz, Michèl ED - Greiner, David ED - Galván, Blas ED - Periaux, Jacques ED - Gauger, Nicolas R. ED - Giannakoglou, Kyriakos C. ED - Winter, G. T1 - Modular Automated Aerodynamic Compressor Design Process T2 - Extended Abstracts Book, Evolutionary and Deterministic Methods for Design, Optimization and Control with Application to Industrial and Societal Problems, Las Palmas de Gran Canaria, 7.-9.10.2013 Y1 - 2013 SN - 978-84-616-6249-4 PB - Universidad de Las Palmas de Gran Canaria CY - Las Palmas de Gran Canaria ER - TY - RPRT A1 - Müller, Jörg A1 - Dieter, M. A1 - Bauhus, J. A1 - Spellmann, H. A1 - Möhring, B. A1 - Wagner, S. A1 - Wolf, Heino A1 - Niekisch, M. A1 - Weiger, H. A1 - Feindt, Peter H. A1 - Hamm, Ulrich A1 - Wätzold, Frank A1 - Wolters, Volkmar A1 - Engels, Eve-Marie A1 - Schraml, U. A1 - Lang, F. A1 - Pröbstl-Haider, U. A1 - Richter, K. T1 - Wege zu einem effizienten Waldnaturschutz in Deutschland. Stellungnahme Y1 - 2020 UR - http://www.fnr.de/fileadmin/allgemein/pdf/Effizienter_Waldnaturschutz_in_Deutschland.pdf PB - Wissenschaftlicher Beirat Waldpolitik und Wissenschaftlicher Beirat Biodiversität und Genetische Ressourcen beim BMEL ER - TY - CHAP A1 - Pöhlmann, Fiete A1 - Bestle, Dieter A1 - Flassig, Peter Michael A1 - Hinz, Michèl ED - Greiner, David ED - Galvàn, Blas ED - Pèriaux, Jacques ED - Gauger, Nicolas R. ED - Giannakoglou, Kyriakos C. ED - Winter, Gabriel T1 - Modular Automated Aerodynamic Compressor Design Process T2 - Advances in Evolutionary and Deterministic Methods for Design, Optimiziation and Control in Engineering and Sciences KW - Multi-criterion optimization, Compressor design, Multi-fidelity processes, Process coupling, Meanline, Throughflow, Blading Y1 - 2015 SN - 978-3-319-11540-5 SN - 978-3-319-11541-2 U6 - https://doi.org/10.1007/978-3-319-11541-2 SP - 267 EP - 276 PB - Springer CY - Cham ER - TY - GEN A1 - Dudek, Piotr T. A1 - Lupina, Grzegorz A1 - Kozłowski, Grzegorz A1 - Zaumseil, Peter A1 - Bauer, Jakob A1 - Fursenko, Oksana A1 - Dabrowski, Jarek Marek A1 - Schmidt, R. A1 - Lippert, Gunther A1 - Müssig, Hans-Joachim A1 - Schröder, Thomas A1 - Schmeißer, Dieter A1 - Zschech, Ehrenfried T1 - Atomic-scale engineering of future high-k dynamic random access memory dielectrics: The example of partial Hf substitution by Ti in BaHfO3 T2 - Journal of Vacuum Science and Technology / B Y1 - 2011 SN - 2166-2754 VL - 29 IS - 1 ER - TY - CHAP A1 - Bestle, Dieter A1 - Flassig, Peter Michael A1 - Dutta, Amit Kumar ED - Sen, M. T1 - Robust Design of Compressor Blades in the Presence of Manufacturing Noise T2 - 9th European Conference on turbomachinery, fluid dynamics and thermodynamics, Conference Proceedings, Vol. 1 Y1 - 2011 SN - 978-975-561-390-1 SP - 1303 EP - 1314 ER - TY - CHAP A1 - Keskin, Akin A1 - Swoboda, Marius A1 - Flassig, Peter Michael A1 - Dutta, Amit Kumar A1 - Bestle, Dieter T1 - New Optimization Strategy for Rapid industrial Blade Design Y1 - 2009 ER - TY - GEN A1 - Urbano, Josè A1 - Bestle, Dieter A1 - Gerstberger, Ulf A1 - Flassig, Peter Michael T1 - Low-Order Representation of Manufacturing Variations Based on B-Spline Morphing T2 - ASME 2019 International Mechanical Engineering Congress and Exposition, November 11–14, 2019 Salt Lake City, Utah, USA Y1 - 2020 UR - https://asmedigitalcollection.asme.org/IMECE/proceedings-abstract/IMECE2019/59384/V02BT02A053/1072900 SN - 978-0-7918-5938-4 U6 - https://doi.org/10.1115/IMECE2019-10294 PB - American Society of Mechanical Engineers ER - TY - GEN A1 - Lutter, Anne-Helen A1 - Hempel, Ute A1 - Dieter, Peter A1 - Anderer, Ursula T1 - Multinuclearity is not mandatory for Bone Resorption Mononuclear Osteoclasts are able to resorbe Extracellular Bone Matrix in vitro T2 - Bone-Tec, Munich, 2017 KW - mononuclear osteoclast Y1 - 2017 UR - https://www.researchgate.net/publication/327860900 ER - TY - JOUR A1 - Bestle, Dieter A1 - Eberhard, Peter T1 - Optimization of a Contact Surface N2 - Zhe paper introduces ideas from shape optimization to multibody system dynamics. A disk rolling down a given slope is taken as a simple example, for which it is the goal of the optimization to shape the rolling contour of the disk such that it takes a minimum time to cover a certain distance. The shape of the sontour is described by its radius of curvature. The governing equations of motion result from the kinematics of relative motion and the Nowton-Euler formalism. Three different kinds of spirals are defined and optimized. KW - multibody system KW - contact surface KW - optimization KW - archimedes spiral Y1 - 2003 ER - TY - JOUR A1 - Eberhard, Peter A1 - Hu, B. A1 - Bestle, Dieter T1 - Longitudinal Wave Propagation in Multiple Impacted Rods Y1 - 2001 ER - TY - GEN A1 - Lutter, Anne-Helen A1 - Hempel, Ute A1 - Dieter, Peter A1 - Anderer, Ursula T1 - The biomarker-based ODEM-assay affects cellular characteristics of osteoclasts in vitro Tissue culture polystyrene vs Osteoblast-Derived Extracellular Matrix T1 - 6th Munich Biomarker Conference, Munich, 2016 Y1 - 2016 U6 - https://doi.org/10.13140/RG.2.2.20195.96806 ER - TY - GEN A1 - Lützner, Jörg A1 - Deckert, Stefanie A1 - Lange, Toni A1 - Postler, Anne Elisabeth A1 - Aringer, Martin A1 - Berth, Hendrik A1 - Bork, Hartmut A1 - Dreinhöfer, Karsten E A1 - Günther, Klaus-Peter A1 - Heller, Karl-Dieter A1 - Hube, Robert A1 - Kirschner, Stephan A1 - Kladny, Bernd A1 - Kopkow, Christian A1 - Sabatowski, Rainer A1 - Stoeve, Johannes A1 - Wagner, Richard A1 - Lützner, Cornelia T1 - Evidenzbasierte und patientenorientierte Indikationsstellung zur Knieendoprothese – Update der Leitlinie T2 - Zeitschrift für Orthopädie und Unfallchirurgie N2 - ZusammenfassungDie Implantation einer Knieendoprothese zählt mit ca. 170000 Eingriffen pro Jahr zu den am häufigsten stationär durchgeführten Operationen in Deutschland. Eine einheitliche, angemessene und patientenorientierte ärztliche Indikationsstellung ist bei einem solchen Eingriff unerlässlich. Das Update der S2k-Leitlinie „Indikation Knieendoprothese“ beinhaltet auf aktueller Evidenz basierende und im breiten Konsens abgestimmte Empfehlungen und eine Checkliste im praxistauglichen Format.Für dieses Leitlinien-Update wurde eine systematische Literaturrecherche nach (inter-)nationalen Leitlinien und systematischen Übersichtsarbeiten zur Gonarthrose und Knieendoprothetik durchgeführt, um klinisch relevante Fragestellungen zu Diagnostik, Prädiktoren für das Outcome, Risikofaktoren und Kontraindikatoren zu beantworten.Eine Knieendoprothese soll nur bei radiologisch nachgewiesener fortgeschrittener Gonarthrose (Kellgren-Lawrence-Grad 3 oder 4), nach vorangegangener konservativer Therapie über mindestens 3 Monate sowie bei hohem subjektivem Leidensdruck hinsichtlich der kniebezogenen Beschwerden und nach Ausschluss möglicher Kontraindikationen (Infektionen, Begleiterkrankungen, BMI ≥ 40 kg/m2) erfolgen. Modifizierbare Risikofaktoren (wie Rauchen, Diabetes mellitus, Anämie) sollen zuvor adressiert und ggf. optimiert werden. Die Ziele der Patient*innen sollen erfragt und deren Eintrittswahrscheinlichkeit gemeinsam besprochen werden. Schließlich ist die Entscheidung zur Knieendoprothese von Patient*in und Operateur*in gemeinsam zu treffen, wenn der zu erwartende Nutzen die möglichen Risiken überwiegt.Das Update der S2k-Leitlinie wurde um die unikondyläre Knieendoprothese erweitert, die präoperative Optimierung modifizierbarer Risikofaktoren ergänzt sowie Konkretisierungen der Hauptindikationskriterien vorgenommen. Y1 - 2024 U6 - https://doi.org/10.1055/a-2288-7254 SN - 1864-6697 PB - Georg Thieme Verlag KG ER -