@article{KlingeOttoMuehl2015,
  author    = {Klinge, Uwe and Otto, Jens and M{\"u}hl, Thomas},
  title     = {High Structural Stability of Textile Implants Prevents Pore Collapse and Preserves Effective Porosity at Strain},
  series = {BioMed Research International},
  volume    = {2015},
  journal   = {BioMed Research International},
  issn      = {2314-6133 (Print)},
  doi       = {10.1155/2015/953209},
  pages     = {7 pages},
  year      = {2015},
  language  = {en}
}
@article{KlettkeHomburgGell2015,
  author    = {Klettke, Tanja and Homburg, Carsten and Gell, Sebastian},
  title     = {How to measure analyst forecast effort},
  series = {European Accounting Review},
  volume    = {24},
  journal   = {European Accounting Review},
  number    = {1},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {0963-8180},
  doi       = {10.1080/09638180.2014.909291},
  pages     = {129 -- 146},
  year      = {2015},
  abstract  = {We introduce a new way to measure the forecast effort that analysts devote to their earnings forecasts by measuring the analyst's general effort for all covered firms. While the commonly applied effort measure is based on analyst behaviour for one firm, our measure considers analyst behaviour for all covered firms. Our general effort measure captures additional information about analyst effort and thus can identify accurate forecasts. We emphasise the importance of investigating analyst behaviour in a larger context and argue that analysts who generally devote substantial forecast effort are also likely to devote substantial effort to a specific firm, even if this effort might not be captured by a firm-specific measure. Empirical results reveal that analysts who devote higher general forecast effort issue more accurate forecasts. Additional investigations show that analysts' career prospects improve with higher general forecast effort. Our measure improves on existing methods as it has higher explanatory power regarding differences in forecast accuracy than the commonly applied effort measure. Additionally, it can address research questions that cannot be examined with a firm-specific measure. It provides a simple but comprehensive way to identify accurate analysts.},
  language  = {en}
}
@article{KleinesZiemonsZwoll1998,
  author    = {Kleines, H. and Ziemons, Karl and Zwoll, K.},
  title     = {Experiences with ATM in a multivendor pilot system at Forschungszentrum J{\"u}lich},
  series = {IEEE Transactions on Nuclear Science},
  volume    = {45},
  journal   = {IEEE Transactions on Nuclear Science},
  number    = {4},
  issn      = {0018-9499},
  pages     = {1867 -- 1871},
  year      = {1998},
  abstract  = {The ATM technology for high speed serial transmission provides a new quality of communication by introducing novel features in a LAN environment, especially support of real time communication, of both LAN and WAN communication and of multimedia streams. In order to evaluate ATM for future DAQ systems and remote control systems as well as for a high speed picture archiving and communications system for medical images, Forschungszentrum Julich has build up a pilot system for the evaluation of ATM and standard low cost multimedia systems. It is a heterogeneous multivendor system containing a variety of switches and desktop solutions, employing different protocol options of ATM. The tests conducted in the pilot system revealed major difficulties regarding stability, interoperability and performance. The paper presents motivations, layout and results of the pilot system. Discussion of results concentrates on performance issues relevant for realistic applications, e.g., connection to a RAID system via NFS over ATM},
  language  = {en}
}
@article{KleinesErkiZiemonsetal.1997,
  author    = {Kleines, H. and Erki, I. and Ziemons, Karl and Zwoll, K.},
  title     = {ATM- und Multimedia Pilotsystem im Rahmen des Projektes M-FIBRe Aufbau und Erfahrungen},
  series = {Bildverarbeitung f{\"u}r die Medizin : Algorithmen - Systeme - Anwendungen},
  journal   = {Bildverarbeitung f{\"u}r die Medizin : Algorithmen - Systeme - Anwendungen},
  editor    = {Lehmann, Thomas},
  publisher = {Verl. der. Augustinus-Buchh.},
  address   = {Aachen},
  isbn      = {3-86073-519-5},
  pages     = {241 -- 248},
  year      = {1997},
  language  = {de}
}
@article{KleinButenwegKlinkel2017,
  author    = {Klein, Michel and Butenweg, Christoph and Klinkel, Sven},
  title     = {The Influence of Soil-Structure-Interaction on the Fatigue Analysis in the Foundation Design of Onshore Wind Turbines},
  series = {Procedia Engineering},
  volume    = {199},
  journal   = {Procedia Engineering},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1877-7058},
  doi       = {10.1016/j.proeng.2017.09.325},
  pages     = {3218 -- 3223},
  year      = {2017},
  language  = {en}
}
@article{KleefeldZimmermann2022,
  author    = {Kleefeld, Andreas and Zimmermann, M.},
  title     = {Computing Elastic Interior Transmission Eigenvalues},
  series = {Integral Methods in Science and Engineering},
  journal   = {Integral Methods in Science and Engineering},
  editor    = {Constanda, Christian and Bodmann, Bardo E.J. and Harris, Paul J.},
  publisher = {Birkh{\"a}user},
  address   = {Cham},
  isbn      = {978-3-031-07171-3},
  doi       = {10.1007/978-3-031-07171-3_10},
  pages     = {139 -- 155},
  year      = {2022},
  abstract  = {An alternative method is presented to numerically compute interior elastic transmission eigenvalues for various domains in two dimensions. This is achieved by discretizing the resulting system of boundary integral equations in combination with a nonlinear eigenvalue solver. Numerical results are given to show that this new approach can provide better results than the finite element method when dealing with general domains.},
  language  = {en}
}
@article{KleefeldReissel2011,
  author    = {Kleefeld, Andreas and Reißel, Martin},
  title     = {The Levenberg-Marquardt method applied to a parameter estimation problem arising from electrical resistivity tomography},
  series = {Applied Mathematics and Computation},
  volume    = {217},
  journal   = {Applied Mathematics and Computation},
  number    = {9},
  publisher = {Elsevier},
  address   = {Amsterdam},
  isbn      = {0096-3003},
  pages     = {4490 -- 4501},
  year      = {2011},
  language  = {en}
}
@article{KleefeldPieronek2020,
  author    = {Kleefeld, Andreas and Pieronek, J.},
  title     = {Elastic transmission eigenvalues and their computation via the method of fundamental solutions},
  series = {Applicable Analysis},
  volume    = {100},
  journal   = {Applicable Analysis},
  number    = {16},
  publisher = {Taylore \& Francis},
  address   = {London},
  issn      = {1563-504X},
  doi       = {10.1080/00036811.2020.1721473},
  pages     = {3445 -- 3462},
  year      = {2020},
  abstract  = {A stabilized version of the fundamental solution method to catch ill-conditioning effects is investigated with focus on the computation of complex-valued elastic interior transmission eigenvalues in two dimensions for homogeneous and isotropic media. Its algorithm can be implemented very shortly and adopts to many similar partial differential equation-based eigenproblems as long as the underlying fundamental solution function can be easily generated. We develop a corroborative approximation analysis which also implicates new basic results for transmission eigenfunctions and present some numerical examples which together prove successful feasibility of our eigenvalue recovery approach.},
  language  = {en}
}
@article{Kleefeld2021,
  author    = {Kleefeld, Andreas},
  title     = {The hot spots conjecture can be false: some numerical examples},
  series = {Advances in Computational Mathematics},
  volume    = {47},
  journal   = {Advances in Computational Mathematics},
  publisher = {Springer},
  address   = {Dordrecht},
  issn      = {1019-7168},
  doi       = {10.1007/s10444-021-09911-5},
  year      = {2021},
  abstract  = {The hot spots conjecture is only known to be true for special geometries. This paper shows numerically that the hot spots conjecture can fail to be true for easy to construct bounded domains with one hole. The underlying eigenvalue problem for the Laplace equation with Neumann boundary condition is solved with boundary integral equations yielding a non-linear eigenvalue problem. Its discretization via the boundary element collocation method in combination with the algorithm by Beyn yields highly accurate results both for the first non-zero eigenvalue and its corresponding eigenfunction which is due to superconvergence. Additionally, it can be shown numerically that the ratio between the maximal/minimal value inside the domain and its maximal/minimal value on the boundary can be larger than 1 + 10- 3. Finally, numerical examples for easy to construct domains with up to five holes are provided which fail the hot spots conjecture as well.},
  language  = {en}
}
@article{KirsteinMuellerWaleckiMingersetal.2012,
  author    = {Kirstein, Simon and M{\"u}ller, Karsten and Walecki-Mingers, Mark and Deserno, Thomas M.},
  title     = {Robust adaptive flow line detection in sewer pipes},
  series = {Automation in construction},
  journal   = {Automation in construction},
  number    = {21},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-7891 (E-Journal) ; 0926-5805 (Print)},
  doi       = {10.1016/j.autcon.2011.05.009},
  pages     = {24 -- 31},
  year      = {2012},
  abstract  = {As part of a novel approach to automatic sewer inspection, this paper presents a robust algorithm for automatic flow line detection. A large image repository is obtained from about 50,000 m sewers to represent the high variability of real world sewer systems. Automatic image processing combines Canny edge detection, Hough transform for straight lines and cost minimization using Dijkstra's shortest path algorithm. Assuming that flow lines are mostly smoothly connected horizontal structures, piecewise flow line delineation is reduced to a process of selecting adjacent line candidates. Costs are derived from the gap between adjacent candidates and their reliability. A single parameter α enables simple control of the algorithm. The detected flow line may precisely follow the segmented edges (α = 0.0) or minimize gaps at joints (α = 1.0). Both, manual and ground truth-based analysis indicate that α = 0.8 is optimal and independent of the sewer's material. The algorithm forms an essential step to further automation of sewer inspection.},
  language  = {en}
}