41 citations · 177 across the 26 of their papers we have counts for
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A Defect Corrected Finite Element Approach for the Accurate Evaluation of Magnetic Fields on Unstructured Grids
Ulrich Römer, Sebastian Schöps, Herbert De Gersem
In electromagnetic simulations of magnets and machines one is often interested in a highly accurate and local evaluation of the magnetic field uniformity. Based on local post-proce…
Low-Dimensional Stochastic Modeling of the Electrical Properties of Biological Tissues
Ulrich Römer, Christian Schmidt, Ursula van Rienen +1
Uncertainty quantification plays an important role in biomedical engineering as measurement data is often unavailable and literature data shows a wide variability. Using state-of-t…
Modeling of Spatial Uncertainties in the Magnetic Reluctivity
Radoslav Jankoski, Ulrich Römer, Sebastian Schöps
In this paper a computationally efficient approach is suggested for the stochastic modeling of an inhomogeneous reluctivity of magnetic materials. These materials can be part of el…
High Dimensional Uncertainty Quantification for an Electrothermal Field Problem using Stochastic Collocation on Sparse Grids and Tensor Train Decompositions
D. Loukrezis, U. Römer, T. Casper +2
The temperature developed in bondwires of integrated circuits (ICs) is a possible source of malfunction, and has to be taken into account during the design phase of an IC. Due to m…
Determination of Bond Wire Failure Probabilities in Microelectronic Packages
Thorben Casper, Ulrich Römer, Sebastian Schöps
This work deals with the computation of industry-relevant bond wire failure probabilities in microelectronic packages. Under operating conditions, a package is subject to Joule hea…
Stochastic Modeling and Regularity of the Nonlinear Elliptic Curl-Curl Equation
Ulrich Römer, Sebastian Schöps, Thomas Weiland
This paper addresses the nonlinear elliptic curl-curl equation with uncertainties in the material law. It is frequently employed in the numerical evaluation of magnetostatic fields…