U
Ulrich Römer
Researcher at Braunschweig University of Technology
Publications - 76
Citations - 388
Ulrich Römer is an academic researcher from Braunschweig University of Technology. The author has contributed to research in topics: Uncertainty quantification & Monte Carlo method. The author has an hindex of 9, co-authored 65 publications receiving 280 citations. Previous affiliations of Ulrich Römer include Technische Universität Darmstadt.
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Stochastic phase-field modeling of brittle fracture: Computing multiple crack patterns and their probabilities
TL;DR: This work proposes the stochastic relaxation of the variational brittle fracture problem through random perturbations of the functional, with the main advantage that point-to-point correlations of the crack phase fields in the underlying domain can be captured.
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Design of Fuel Cell Systems for Aviation: Representative Mission Profiles and Sensitivity Analyses
TL;DR: Results suggest that the improvement of the specific power of the fuel cell is the deciding factor for lowering the energy system mass.
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Assessing the Performance of Leja and Clenshaw-Curtis Collocation for Computational Electromagnetics with Random Input Data
TL;DR: In this paper, the authors consider the problem of quantifying uncertainty regarding the output of an electromagnetic field problem in the presence of a large number of uncertain input parameters and employ a dimension-adaptive stochastic collocation method based on nested univariate nodes.
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Quantification of Uncertainty in the Field Quality of Magnets Originating from Material Measurements
TL;DR: In this paper, a stochastic model was proposed to describe the uncertainties and demonstrated the use of generalized polynomial chaos for the uncertainty quantification of the multipole coefficients.
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Optimization and uncertainty quantification of gradient index metasurfaces
Nikolai Schmitt,Niklas Georg,Gauthier Briere,Dimitrios Loukrezis,Sébastien Héron,Stéphane Lanteri,Charalambos Klitis,Marc Sorel,Ulrich Römer,Herbert De Gersem,Stéphane Vézian,Patrice Genevet +11 more
TL;DR: In this paper, the impact of fabrication uncertainties on the experimentally characterized components is quantified, giving an idea of the expected average behavior of a large number of devices in the case of large production of metaoptics components.