Zobrazeno 1 - 10
of 987
pro vyhledávání: '"Uihlein, A."'
Autor:
Uihlein, Andrian, Wollner, Winnifried
Based on techniques by (S.J. Wright 1998) for finite-dimensional optimization, we investigate a stabilized sequential quadratic programming method for nonlinear optimization problems in infinite-dimensional Hilbert spaces. The method is shown to achi
Externí odkaz:
http://arxiv.org/abs/2312.14801
This paper focuses on the topology optimization of a broadband acoustic transition section that connects two cylindrical waveguides with different radii. The primary objective is to design a transition section such that it maximizes the transmission
Externí odkaz:
http://arxiv.org/abs/2310.04783
In this contribution, we present a numerical analysis of the continuous stochastic gradient (CSG) method, including applications from topology optimization and convergence rates. In contrast to standard stochastic gradient optimization schemes, CSG d
Externí odkaz:
http://arxiv.org/abs/2303.12477
Autor:
Angelika Svetlove, Christian O. Ritter, Christian Dullin, Michael Schmid, Senta Schauer, Johannes Uihlein, Martin Uecker, Matthias Mietsch, Christine Stadelmann, Joachim Lotz, Christina Unterberg-Buchwald
Publikováno v:
European Radiology Experimental, Vol 7, Iss 1, Pp 1-11 (2023)
Abstract Background Diagnostic accuracy of endomyocardial biopsy could improve if clinically safe magnetic resonance (MR)-compatible bioptomes were available. We explored two novel MR-compatible cardiac bioptomes for performance, safety, and clinical
Externí odkaz:
https://doaj.org/article/cb7d4f9ed9fc44d0b956a8f8298cf33d
In this contribution, we present a full overview of the continuous stochastic gradient (CSG) method, including convergence results, step size rules and algorithmic insights. We consider optimization problems in which the objective function requires s
Externí odkaz:
http://arxiv.org/abs/2203.06888
A recent article introduced thecontinuous stochastic gradient method (CSG) for the efficient solution of a class of stochastic optimization problems. While the applicability of known stochastic gradient type methods is typically limited to expected r
Externí odkaz:
http://arxiv.org/abs/2111.07322
Autor:
Brian I. Labow, MD, FACS, FAAP, Shomoukh A. Alshamekh, MD, Valerie M. Carlberg, MD, Jennifer L. Zacur, MD, PhD, Lily C. Uihlein, MD, JD, John B. Mulliken, MD, Marilyn G. Liang, MD
Publikováno v:
Plastic and Reconstructive Surgery, Global Open, Vol 12, Iss 1, p e5506 (2024)
Background:. The literature is meager regarding the natural history and outcomes of infantile hemangiomas (IHs) in the breast. Treatment in childhood may be considered due to psychosocial and physical concerns with breast development. Early surgical
Externí odkaz:
https://doaj.org/article/bc50ec040b1c41be8eb7c03dd1bf850e
Autor:
Rommel, Patric, Main, Jörg, Farenbruch, Andreas, Mund, Johannes, Fröhlich, Dietmar, Yakovlev, Dmitri R., Bayer, Manfred, Uihlein, Christoph
Publikováno v:
Phys. Rev. B 101, 115202 (2020)
Recently Second Harmonic Generation (SHG) for the yellow exciton series in cuprous oxide has been demonstrated [J. Mund et al., Phys. Rev. B 98, 085203 (2018)]. Assuming perfect $O_{\mathrm{h}}$ symmetry, SHG is forbidden along certain high-symmetry
Externí odkaz:
http://arxiv.org/abs/2002.12064
Akademický článek
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Publikováno v:
Phys. Rev. B 96, 245202 (2017)
The observation of giant Rydberg excitons in cuprous oxide $\left(\mathrm{Cu_{2}O}\right)$ up to a principal quantum number of $n=25$ by T.~Kazimierczuk \emph{et al.} [Nature \textbf{514}, 343, (2014)] inevitably raises the question whether these qua
Externí odkaz:
http://arxiv.org/abs/1711.04482