Auflistung nach Schlagwort "Optimization"

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  • Wellmann, Christian; Lillie, Claudia; Wriggers, Peter (Bingley : Emerald Group Publishing Ltd., 2008)
    Purpose - The paper aims to introduce an efficient contact detection algorithm for smooth convex particles. Design/methodology/approach - The contact points of adjacent particles are defined according to the common-normal ...
  • Zell, Petrissa; Rosenhahn, Bodo (Heidelberg : Springer Verlag, 2015)
    Physics-based modeling is a powerful tool for human gait analysis and synthesis. Unfortunately, its application suffers from high computational cost regarding the solution of optimization problems and uncertainty in the ...
  • Gatz, Sebastian; Bothe, Karsten; Müller, Jens; Dullweber, Thorsten; Brendel, Rolf (Amsterdam : Elsevier BV, 2011)
    In this paper, we investigate the surface recombination of local screen-printed aluminum contacts applied to rear passivated solar cells. We measure the surface recombination velocity by microwave-detected photoconductance ...
  • Wang, Yuanhao; He, Xiaoxi; Wang, Jiangning; Berezin, Sergey; Mathis, Wolfgang (Delaware : Scientific Research Publishing Inc., 2015)
    This paper presents an array pattern synthesis algorithm for arbitrary arrays based on coordinate descent method (CDM). With this algorithm, the complex element weights are found to minimize a weighted L2 norm of the ...
  • Denkena, Berend; Jacob, Stefan (Amsterdam : Elsevier, 2015)
    Titanium structural components for the aircraft industry are usually manufactured from ingots of primary material. The process chain for the fabrication of these components consists of the production of titanium sponge, ...
  • Haberlandt, Uwe; Sester, Monika (Göttingen : Copernicus GmbH, 2010)
    Optimal spatial assessment of short-time step precipitation for hydrological modelling is still an important research question considering the poor observation networks for high time resolution data. The main objective of ...
  • Nguyen, Van Duc; Kuchenbecker, Hans-Peter; Haas, Harald; Kyamakya, Kyandoghere; Gelle, Guillaume (Heidelberg : Springer Verlag, 2007)
    A new algorithm estimating channel impulse response (CIR) length and noise variance for orthogonal frequency-division multiplexing (OFDM) systems with adaptive guard interval (GI) length is proposed. To estimate the CIR ...
  • Rose, Daniel; Schmidt, Martin; Steinbach, Marc C.; Willert, Bernhard M. (Heidelberg : Springer Verlag, 2016)
    When considering cost-optimal operation of gas transport networks, compressor stations play the most important role. Proper modeling of these stations leads to nonconvex mixed-integer nonlinear optimization problems. In ...
  • Schulze, M.; Nikanorov, A.; Nacke, B. (Bristol : Institute of Physics Publishing, 2018)
    The transverse flux heating (TFH) concept offers very high electrical efficiency in combination with unique technological flexibility. Numerous advantages make this method beyond competition to be applied in e.g. continuous ...
  • Menze, Moritz; Heipke, Christian; Geiger, Andreas (Heidelberg : Springer Verlag, 2015)
    We propose to look at large-displacement optical flow from a discrete point of view. Motivated by the observation that sub-pixel accuracy is easily obtained given pixel-accurate optical flow, we conjecture that computing ...
  • Beyersdorff, Olaf; Nebesov, Yevgen (Wadern : Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH, 2009)
    In this paper we suggest a new approach to timetable information by introducing the "edge-converted graph" of a timetable. Using this model we present simple algorithms that solve the earliest arrival problem (EAP) and the ...
  • Kamata, N.; Klausing, H.; Fedler, F.; Mistele, D.; Aderhold, J.; Semchinova, O.K.; Graul, J.; Someya, T.; Arakawa, Y. (Cambridge : Cambridge University Press, 2004)
    In order to improve the crystal quality of GaN-based light emitting devices, photoluminescence (PL) characterization of below-gap states in plasma assisted MBE-grown GaN/AlGaN quantum well (QW) structures has been done by ...
  • Denkena, Berend; Möhring, H.-C.; Hesse, P. (London : SAGE Publications Ltd., 2007)
    This paper describes the energy flow in jerk-decoupled translatory feed axes. After an introductory survey on jerk-decoupled feed axes, a system simulation is presented. This system simulation includes a model of the ...
  • Schmidt, Alena; Rottensteiner, Franz; Sörgel, Uwe; Heipke, Christian (Hannover : International Society for Photogrammetry and Remote Sensing, 2014)
    We propose a method for the automatic extraction of fluvial networks in lidar data with the aim to obtain a connected network represented by the fluvial channels' skeleton. For that purpose we develop a two-step approach. ...
  • Sadek, E.; Fouad, N.A. (London : SAGE Publications Ltd., 2013)
    Extruded polystyrene rigid foams have attracted a great attention as a superior load-bearing thermal insulation material since their implementation in building construction. One of the most common application areas of this ...
  • Busch, Jan; Blankemeyer, Sebastian; Raatz, Annika; Nyhuis, Peter (Amsterdam : Elsevier B.V., 2016)
    An active aerodynamic feeding system developed at the IFA offers a large potential regarding output rate, reliability and neutrality towards part geometries. In this paper, the procedure of a genetic algorithm's into the ...
  • Willemsen, Thomas; Schlichting, S.; Gyamfi, M.; Jupé, Marco; Ehlers, H.; Morgner, Uwe; Ristau, Detlev (Bellingham, WA : S P I E - International Society for Optical Engineering, 2016)
    The present contribution is addressed to an improved method to fabricate dielectric dispersive compensating mirrors (CMs) with an increased laser induced damage threshold (LIDT) by the use of ternary composite layers. ...
  • Schuller, Gerald (Berlin : De Gruyter, 1996)
    The design of modulated filter banks with a low system delay and with perfect reconstruction will be shown. The filter lengths K can be chosen arbitrarily. The well known orthogonal filter banks have a system delay of K - ...
  • Brandt, Sebastian; Broggi, Matteo; Hafele, Jan; Gebhardt, Cristian Guillermo; Rolfes, Raimund; Beer, Michael (London : Elsevier Ltd., 2017)
    One of the main structural components of offshore wind turbines is the substructure which bridges the gap between seabed and tower foot. One possible concept employed in intermediate water depths for turbines with high-rated ...
  • Poll, G.; Neudörfer, S.; Skubacz, T. (London : SAGE Publications Ltd., 2008)
    An essential component of manually operated vehicle transmissions is the synchronising device. Synchronizers have the task of minimizing the speed difference between the shifted gearwheel and the shaft by means of frictional ...