Auflistung nach Schlagwort "Monte Carlo methods"

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  • Aerodynamical and Structural Analysis of Operationally Used Turbine Blades 
    Schwerdt, Lukas; Hauptmann, Thomas; Kunin, Artsem; Seume, Jörg R.; Wallaschek, Jörg; Wriggers, Peter; Panning-von Scheidt, Lars; Löhnert, Stefan (Amsterdam : Elsevier BV, 2017)
    This paper presents an integrated methodology for the analysis of operationally-used turbine blades, incorporating aerodynamic and multiple structural simulations. In jet engines, blade rubbing and erosion lead to deviations ...
  • Bayesian Inversion with Open-Source Codes for Various One-Dimensional Model Problems in Computational Mechanics 
    Noii, Nima; Khodadadian, Amirreza; Ulloa, Jacinto; Aldakheel, Fadi; Wick, Thomas; François, Stijn; Wriggers, Peter (Dordrecht [u.a.] ; Berlin ; Heidelberg : Springer, 2022)
    The complexity of many problems in computational mechanics calls for reliable programming codes and accurate simulation systems. Typically, simulation responses strongly depend on material and model parameters, where one ...
  • Characterization of porous surfaces with spatial point pattern analysis 
    Zou, Yibo; Kästner, Markus; Reithmeier, Eduard (Bellingham, Wash. : SPIE, 2015)
    Nowadays thermal plasma spray coating is widespread in automobile industry. For example, in the cylinder manufacturing process coatings are applied for friction reduction, wear and corrosion resistance. After the honing ...
  • Collaborative navigation simulation tool using kalman filter with implicit constraints 
    Garcia-Fernandez, N.; Alkhatib, H.; Schön, S. (Göttingen : Copernicus GmbH, 2019)
    Collaborative Positioning (CP) is a networked positioning technique in which different multi-sensor systems (nodes) enhance the accuracy and precision of these navigation solutions by performing measurements or by sharing ...
  • Descope of the ALIA mission 
    Gong, Xuefei; Lau, Yun-Kau; Xu, Shengnian; Amaro-Seoane, Pau; Bai, Shan; Bian, Xing; Cao, Zhoujian; Chen, Gerui; Chen, Xian; Ding, Yanwei; Dong, Peng; Gao, Wei; Heinzel, Gerhard; Li, Ming; Li, Shuo; Liu, Fukun; Luo, Ziren; Shao, Mingxue; Spurzem, Rainer; Sun, Baosan; Tang, Wenlin; Wang, Yan; Xu, Peng; Yu, Pin; Yuan, Yefei; Zhang, Xiaomin; Zhou, Zebing (Bristol : Institute of Physics Publishing, 2015)
    The present work reports on a feasibility study commissioned by the Chinese Academy of Sciences of China to explore various possible mission options to detect gravitational waves in space alternative to that of the eLISA/LISA ...
  • Doppler Cooling and Trapping on Forbidden Transitions 
    Binnewies, T.; Wilpers, G.; Sterr, U.; Riehle, F.; Helmcke, J.; Mehlstäubler, T.E.; Rasel, Ernst Maria; Ertmer, Wolfgang (American Physical Society, 2001)
    Ultracold atoms at temperatures close to the recoil limit have been achieved by extending Doppler cooling to forbidden transitions. A cloud of 40Ca atoms has been cooled and trapped to a temperature as low as 6μK by operating ...
  • Efficient reliability analysis of complex systems in consideration of imprecision 
    Salomon, Julian; Winnewisser, Niklas; Wei, Pengfei; Broggi, Matteo; Beer, Michael (London [u.a.] : Elsevier Science, 2021)
    In this work, the reliability of complex systems under consideration of imprecision is addressed. By joining two methods coming from different fields, namely, structural reliability and system reliability, a novel methodology ...
  • An efficient reliability analysis on complex non-repairable systems with common-cause failures 
    Feng, G.; George-Williams, H.; Patelli, E.; Coolen, F.P.A.; Beer, M. (London : Taylor & Francis Group, 2018)
    Common-Cause Failures (CCF) impose severe consequences on a complex system’s reliability and overall performance. A more realistic assessment, therefore, of the survivability of the system requires an adequate consideration ...
  • Engineering the sub-Doppler force in magneto-optical traps 
    Xu, S.; Kaebert, P.; Stepanova, M.; Poll, T.; Siercke, M.; Ospelkaus, S. (College Park, MD : APS, 2022)
    Current dual-frequency magneto-optical traps (MOTs) for ultracold molecules are plagued by sub-Doppler heating effects, making them vastly inferior to standard atomic MOTs. Here we demonstrate theoretically that the ...
  • Estimating the volatility of asset pricing factors 
    Becker, Janis; Leschinski, Christian (New York, NY : Wiley Interscience, 2020)
    Models based on factors such as size or value are ubiquitous in asset pricing. Therefore, portfolio allocation and risk management require estimates of the volatility of these factors. While realized volatility has become ...
  • A generic approach to analyze the impact of a future aircraft design on the boarding process 
    Yildiz, Bekir; Förster, Peter; Feuerle, Thomas; Hecker, Peter; Bugow, Stefan; Helber, Stefan (Basel : MDPI AG, 2018)
    The turnaround process constitutes an important part of the air transportation system. Airports often represent bottlenecks in air traffic management (ATM), thus operations related to the preparation of the aircraft for ...
  • High order sensitivity analysis of a mistuned blisk including intentional mistuning 
    Pohle, Linus; Tatzko, Sebastian; Panning-von Scheidt, Lars; Wallaschek, Jörg (Warsaw : Polish Society of Theoretical and Allied Mechanics, 2017)
    Small deviations between turbine blades exist due to manufacturing tolerances or material inhomogeneities. This effect is called mistuning and usually causes increased vibration amplitudes and also a lower service life ...
  • Imprecise reliability analysis of complex interconnected networks 
    Behrensdorf, J.; Broggi, M.; Beer, M. (London : Taylor & Francis Group, 2018)
    The effect of natural and man made disasters on critical infrastructures are substantial, as evident from recent history. Break downs of critical systems such as electrical power grids, water supply networks, communication ...
  • Ionic polaron in a Bose-Einstein condensate 
    Astrakharchik, Grigory E.; Ardila, Luis A. Peña; Schmidt, Richard; Jachymski, Krzysztof; Negretti, Antonio (London : Springer Nature, 2021)
    The presence of strong interactions in a many-body quantum system can lead to a variety of exotic effects. Here we show that even in a comparatively simple setup consisting of a charged impurity in a weakly interacting ...
  • Laser theory for optomechanics: Limit cycles in the quantum regime 
    Lörch, Niels; Qian, Jiang; Clerk, Aashish; Marquardt, Florian; Hammerer, Klemens (New York : American Physical Society, 2014)
    Optomechanical systems can exhibit self-sustained limit cycles where the quantum state of the mechanical resonator possesses nonclassical characteristics such as a strongly negative Wigner density, as was shown recently ...
  • Marked point processes for the automatic detection of bomb craters in aerial wartime images 
    Kruse, C.; Rottensteiner, F.; Heipke, C. (Göttingen : Copernicus, 2019)
    Many countries were the target of air strikes during the Second World War. The aftermath of such attacks is felt until today, as numerous unexploded bombs or duds still exist in the ground. Typically, such areas are ...
  • Metall-organische Gerüstverbindungen : Simulation von Strukturen und Adsorptionseigenschaften mittels Monte Carlo- und Moleküldynamik-Methoden 
    Lilienthal, Sebastian (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2015)
    [no abstract]
  • A multilevel Monte Carlo finite element method for the stochastic Cahn–Hilliard–Cook equation 
    Khodadadian, Amirreza; Parvizi, Maryam; Abbaszadeh, Mostafa; Dehghan, Mehdi; Heitzinger, Clemens (Heidelberg : Springer Verlag, 2019)
    In this paper, we employ the multilevel Monte Carlo finite element method to solve the stochastic Cahn–Hilliard–Cook equation. The Ciarlet–Raviart mixed finite element method is applied to solve the fourth-order equation. ...
  • Multiple scale modeling of Al2O3 thin film growth in an ion beam sputtering process 
    Turowski, Marcus; Jupé, Marco; Melzig, Thomas; Pflug, Andreas; Ristau, Detlev (Bellingham, WA : S P I E - International Society for Optical Engineering, 2015)
    A multiple scale model approach is presented in order to investigate Al2O3 thin film growth in the framework of an existing Ion Beam Sputtering (IBS) coating process. Therefore, several simulation techniques are combined ...
  • Robust Spatial Approximation of Laser Scanner Point Clouds by Means of Free-form Curve Approaches in Deformation Analysis 
    Bureick, Johannes; Alkhatib, Hamza; Neumann, Ingo (Berlin : De Gruyter, 2016)
    In many geodetic engineering applications it is necessary to solve the problem of describing a measured data point cloud, measured, e. g. by laser scanner, by means of free-form curves or surfaces, e. g., with B-Splines ...