2019

Galetzka, Armin ; Bontinck, Zeger ; Römer, Ulrich ; Schöps, Sebastian (2019):
A multilevel Monte Carlo method for high-dimensional uncertainty quantification of low-frequency electromagnetic devices.
In: IEEE Transactions on Magnetics, IEEE, S. 1-12, 55, (8), ISSN 0018-9464,
DOI: 10.1109/TMAG.2019.2911053,
[Online-Edition: https://doi.org/10.1109/TMAG.2019.2911053],
[Artikel]

Schmitt, Nikolai ; Georg, Niklas ; Gauthier, Brière ; Loukrezis, Dimitrios ; Héron, Sébastien ; Lanteri, Stéphane ; Klitis, Charalambos ; Sorel, Marc ; Römer, Ulrich ; De Gersem, Herbert ; Vézian, Stéphane ; Genevet, Patrice (2019):
Optimization and uncertainty quantification of gradient index metasurfaces.
In: Optical Materials Express, OSA, S. 892-910, 9, (2), DOI: 10.1364/OME.9.000892,
[Online-Edition: http://www.osapublishing.org/ome/abstract.cfm?URI=ome-9-2-89...],
[Artikel]

Loukrezis, Dimitrios ; Römer, Ulrich ; De Gersem, Herbert (2019):
Assessing the Performance of Leja and Clenshaw-Curtis Collocation for Computational Electromagnetics with Random Input Data.
In: International Journal for Uncertainty Quantification, Begell House, ISSN 2152-5099,
DOI: 10.1615/Int.J.UncertaintyQuantification.2018025234,
[Online-Edition: http://www.dl.begellhouse.com/journals/52034eb04b657aea.html#publikationen],
[Artikel]

Jankoski, Radoslav ; Römer, Ulrich ; Schöps, Sebastian (2019):
Stochastic modeling of magnetic hysteretic properties by using multivariate random fields.
In: International Journal for Uncertainty Quantification, Begell House, S. 85-102, 9, (1), ISSN 2152-5080,
DOI: 10.1615/Int.J.UncertaintyQuantification.2019025638,
[Online-Edition: https://doi.org/10.1615/Int.J.UncertaintyQuantification.2019...],
[Artikel]

2018

Georg, Niklas ; Corno, Jacopo ; De Gersem, Herbert ; Zadeh, Shahnam Gorgi ; Römer, Ulrich ; Schöps, Sebastian ; Sulimov, Alexey ; van Rienen, Ursula (2018):
Uncertainty quantification for the fundamental mode spectrum of the European XFEL Cavities.
In: 13th International Computational Accelerator Physics Conference (ICAP18), [Online-Edition: http://bt.pa.msu.edu/ICAP18],
[Konferenzveröffentlichung]

Ion, Ion Gabriel ; Bontinck, Zeger ; Loukrezis, Dimitrios ; Römer, Ulrich ; Lass, Oliver ; Ulbrich, Stefan ; Schöps, Sebastian ; De Gersem, Herbert (2018):
Robust Shape Optimization of Electric Devices Based on Deterministic Optimization Methods and Finite Element Analysis With Affine Decomposition and Design Elements.
In: Electrical Engineering (Archiv für Elektrotechnik), ISSN 1432-0487,
DOI: 10.1007/s00202-018-0716-6,
[Online-Edition: https://doi.org/10.1007/s00202-018-0716-6],
[Artikel]

Georg, Niklas ; Loukrezis, Dimitrios ; Römer, Ulrich ; Schöps, Sebastian (2018):
Uncertainty Quantification for an Optical Grating Coupler with Adjoint-based Adaptive Collocation.
Maxwell in Motion, In: Workshop on Advances in Electromagnetic Research — KWT 2018, Rietzlern, Austria, [Online-Edition: http://maxwell-in-motion.org],
[Konferenzveröffentlichung]

Bontinck, Zeger ; Ion, Ion Gabriel ; Loukrezis, Dimitrios ; Römer, Ulrich ; Schöps, Sebastian ; De Gersem, Herbert (2018):
Using Affine Decompositions and Design Elements for Geometric Parametrization.
Maxwell in Motion, In: Workshop on Advances in Electromagnetic Research — KWT 2018, Rietzlern, Austria, [Online-Edition: http://maxwell-in-motion.org],
[Konferenzveröffentlichung]

Georg, Niklas ; Römer, Ulrich ; Schöps, Sebastian ; Schuhmann, Rolf (2018):
Uncertainty Quantification for an Optical Grating Coupler using Adaptive Stochastic Collocation.
In: SIAM Conference on Uncertainty Quantification 2018, [Online-Edition: https://www.siam.org/meetings/uq18],
[Konferenzveröffentlichung]

Ion, Ion Gabriel ; Loukrezis, Dimitrios ; Römer, Ulrich ; Bontinck, Zeger ; Schöps, Sebastian ; Lass, Oliver ; Ulbrich, Stefan ; De Gersem, Herbert (2018):
Shape Optimization of Electric Devices Combining a Deterministic Optimization Method With Design Elements.
In: 11th International Symposium on Electric and Magnetic Fields (EMF 2018), [Online-Edition: http://aimontefiore.org/emf2018/],
[Konferenzveröffentlichung]

Jankoski, Radoslav ; Römer, Ulrich ; Schöps, Sebastian (2018):
Modeling uncertainties in the magnetic hysteresis and their impact on the field quality of a combined function magnet.
In: 11th International Symposium on Electric and Magnetic Fields (EMF 2018), [Online-Edition: http://aimontefiore.org/emf2018/],
[Konferenzveröffentlichung]

Loukrezis, Dimitrios ; Römer, Ulrich ; Casper, Thorben ; Schöps, Sebastian ; De Gersem, Herbert (2018):
High Dimensional Uncertainty Quantification for an Electrothermal Field Problem using Stochastic Collocation on Sparse Grids and Tensor Train Decomposition.
In: International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 31, (2), ISSN 1099-1204,
[Online-Edition: https://doi.org/10.1002/jnm.2222],
[Artikel]

Römer, Ulrich ; Clénet, Stéphane ; Schöps, Sebastian (2018):
Duality Based Estimation of Linearization Errors in Stochastic Computations.
München, In: 89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2018), [Online-Edition: http://jahrestagung.gamm-ev.de],
[Konferenzveröffentlichung]

Casper, Thorben ; Römer, Ulrich ; De Gersem, Herbert ; Schöps, Sebastian (2018):
Coupled Simulation of Transient Heat Flow and Electric Currents in Thin Wires: Application to Bond Wires in Microelectronic Chip Packaging.
In: arXiv, [Report]

2017

Bontinck, Zeger ; Corno, Jacopo ; Gersem, Herbert De ; Kurz, Stefan ; Pels, Andreas ; Schöps, Sebastian ; Wolf, Felix ; de Falco, Carlo ; Dölz, Jürgen ; Vázquez, Rafael ; Römer, Ulrich (2017):
Recent Advances of Isogeometric Analysis in Computational Electromagnetics.
In: ICS Newsletter (International Compumag Society), 3, [Online-Edition: http://www.compumag.org/jsite/images/stories/newsletter],
[Artikel]

Jankoski, Radoslav ; Römer, Ulrich ; Schöps, Sebastian
Schäfer, Michael (Hrsg.) (2017):
Modeling uncertainties in the magnetic hysteresis and their impact on the field quality of a combined function magnet.
Darmstadt, Germany, In: 4th International Conference on Computational Engineering (ICCE 2017), Darmstadt, Germany, [Konferenzveröffentlichung]

Casper, Thorben ; Römer, Ulrich ; Schöps, Sebastian
Dyczij-Edlinger, Romanus (Hrsg.) (2017):
Determining Bond Wire Temperatures in Electronic Devices by a 1D-3D Coupling Approach.
Miltenberg, In: URSI Kleinheubacher Tagung (KHB 2017), Miltenberg, [Online-Edition: https://www.kh2017.de],
[Konferenzveröffentlichung]

Casper, Thorben ; Römer, Ulrich ; Schöps, Sebastian
Schäfer, Michael (Hrsg.) (2017):
On the Simulation of Thin Wires in a Coupled 1D-3D Setting.
Darmstadt, Germany, In: 4th International Conference on Computational Engineering (ICCE 2017), Darmstadt, Germany, [Konferenzveröffentlichung]

Jankoski, Radoslav ; Römer, Ulrich ; Schöps, Sebastian (2017):
Modeling Uncertainties in the Magnetic Hysteresis and their Impact on the Field Quality of a Combined Function Magnet.
In: Workshop on Advances in Electromagnetic Research — KWT 2017, [Online-Edition: http://maxwell-in-motion.org],
[Konferenzveröffentlichung]

Georg, Niklas ; Römer, Ulrich ; Schöps, Sebastian (2017):
Uncertainty Quantification for a Plasmon Waveguide using Stochastic Collocation.
In: Workshop on Advances in Electromagnetic Research — KWT 2017, [Online-Edition: http://maxwell-in-motion.org],
[Konferenzveröffentlichung]

Römer, Ulrich ; Schmidt, Christian ; van Rienen, Ursula ; Schöps, Sebastian (2017):
Low-Dimensional Stochastic Modeling of the Electrical Properties of Biological Tissues.
In: IEEE Transactions on Magnetics, S. 1-4, 53, (6), ISSN 0018-9464,
DOI: 10.1109/TMAG.2017.2668841,
[Online-Edition: https://doi.org/10.1109/TMAG.2017.2668841],
[Artikel]

Römer, Ulrich ; Casper, Thorben ; Schöps, Sebastian (2017):
Uncertainty Quantification for a Singular Electrothermal Coupled Problem with Error Control.
Rhodes Island, Greece, In: UNCECOMP 2017, Rhodes Island, Greece, [Online-Edition: https://2017.uncecomp.org],
[Konferenzveröffentlichung]

Jankoski, Radoslav ; Römer, Ulrich ; Schöps, Sebastian
Jung, Hyun-Kyo (Hrsg.) (2017):
The Impact of Spatial Uncertainties in the Magnetic Reluctivity on the Field Quality of a Combined Function Magnet.
Daejeon, Korea, In: 21th Conference on the Computation of Electromagnetic Fields, Daejeon, Korea, [Online-Edition: http://www.compumag2017.com],
[Konferenzveröffentlichung]

Casper, Thorben ; Römer, Ulrich ; Schöps, Sebastian
Jung, Hyun-Kyo (Hrsg.) (2017):
An Electrothermal 1D-3D Coupling Approach for Thin Wires in Microelectronic Chip Packages.
Daejeon, Korea, In: 21th Conference on the Computation of Electromagnetic Fields, Daejeon, Korea, [Online-Edition: http://www.compumag2017.com],
[Konferenzveröffentlichung]

Jankoski, Radoslav ; Römer, Ulrich ; Schöps, Sebastian (2017):
Modeling of Spatial Uncertainties in the Magnetic Reluctivity.
In: COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, S. 1151-1167, 36, (4), ISSN 0332-1649,
[Online-Edition: https://doi.org/10.1108/COMPEL-10-2016-0438],
[Artikel]

Römer, Ulrich ; Schöps, Sebastian ; De Gersem, Herbert (2017):
A Defect Corrected Finite Element Approach for the Accurate Evaluation of Magnetic Fields on Unstructured Grids.
In: Journal of Computational Physics, S. 688-699, 335, DOI: 10.1016/j.jcp.2017.01.041,
[Online-Edition: https://doi.org/10.1016/j.jcp.2017.01.041],
[Artikel]

Galetzka, Armin ; Bontinck, Zeger ; Römer, Ulrich ; Schöps, Sebastian (2017):
Multilevel Monte Carlo Simulation of the Eddy Current Problem With Random Parameters.
In: 2017 International Applied Computational Electromagnetics Society Symposium, IEEE, [Online-Edition: https://doi.org/10.23919/ROPACES.2017.7916062],
[Buchkapitel]

Galetzka, Armin ; Bontinck, Zeger ; Römer, Ulrich ; Schöps, Sebastian (2017):
Multilevel Monte Carlo Simulation of the Eddy Current Problem With Random Parameters.
In: 2017 International Applied Computational Electromagnetics Society (ACES) Symposium, [Online-Edition: http://aces-society.org/conference/Italy_2017/],
[Konferenzveröffentlichung]

Loukrezis, Dimitrios ; Römer, Ulrich ; De Gersem, Herbert (2017):
Leja-Based Adaptive Sparse Grids for High-Dimensional Uncertainty Quantification in Scattering Parameter Simulations.
In: Proceedings of the 4th International Conference on Computational Engineering, [Konferenzveröffentlichung]

Loukrezis, Dimitrios ; Römer, Ulrich ; De Gersem, Herbert (2017):
Leja-Based Adaptive Sparse Grids for Uncertainty Quantification in High-Frequency Electromagnetics.
In: Kleinheubacher Berichte, [Konferenzveröffentlichung]

2016

Casper, Thorben ; Römer, Ulrich ; Schöps, Sebastian (2016):
Determination of Bond Wire Failure Probabilities in Microelectronic Packages.
Budapest, In: 22nd International Workshop on Thermal Investigations of ICs and Systems (THERMINIC), Budapest, 21-23 Sept. 2016, DOI: 10.1109/THERMINIC.2016.7748645,
[Online-Edition: https://doi.org/10.1109/THERMINIC.2016.7748645],
[Konferenzveröffentlichung]

Jankoski, Radoslav ; Römer, Ulrich ; Schöps, Sebastian
Belahcen, Anouar ; Demenko, Andrzej ; Pietrowski, Wojciech (Hrsg.) (2016):
Stochastic Modeling of an Inhomogeneous Magnetic Reluctivity Using the Karhunen-Loève Expansion and the Hierarchical Matrix Technique.
In: XXIV Symposium Electromagnetic Phenomena in Nonlinear Circuits - Proceedings EPNC 2016, Poznań, PTETiS Publishers, [Buchkapitel]

Jankoski, Radoslav ; Römer, Ulrich ; Schöps, Sebastian (2016):
Stochastic Modeling of an Inhomogeneous Magnetic Reluctivity Using the Karhunen-Loève Expansion and the Hierarchical Matrix Technique.
In: XXIV Symposium Electromagnetic Phenomena in Nonlinear Circuits (EPNC 2016), [Online-Edition: http://ptetis.put.poznan.pl/epnc/],
[Konferenzveröffentlichung]

Casper, Thorben ; Römer, Ulrich ; Schöps, Sebastian (2016):
Efficient Evaluation of Bond Wire Fusing Probabilities.
In: SIAM Conference on Uncertainty Quantification 2016, [Online-Edition: https://www.siam.org/meetings/uq16/],
[Konferenzveröffentlichung]

Loukrezis, Dimitrios ; Römer, Ulrich ; Casper, Thorben ; Schöps, Sebastian ; De Gersem, Herbert (2016):
Application of High Dimensional Uncertainty Quantification Methods to Electrothermal Field Problems.
In: 10th International Symposium on Electric and Magnetic Fields (EMF 2016), [Online-Edition: http://www.aimontefiore.org/emf2016/],
[Konferenzveröffentlichung]

ter Maten, E. Jan W. ; Schöps, Sebastian ; Duque, David ; Casper, Thorben ; De Gersem, Herbert ; Römer, Ulrich (2016):
Nanoelectronic COupled problems solutions - nanoCOPS: modelling, multirate, model order reduction, uncertainty quantification, fast fault simulation.
In: Journal of Mathematics in Industry, Springer, 7, (2), ISSN 2190-5983,
[Online-Edition: https://dx.doi.org/10.1186/s13362-016-0025-5],
[Artikel]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2016):
Stochastic Modeling and Regularity of the Nonlinear Elliptic curl-curl Equation.
In: SIAM/ASA Journal on Uncertainty Quantification, SIAM, S. 952-979, 4, (1), ISSN 2166-2525,
[Online-Edition: http://dx.doi.org/10.1137/15M1026535],
[Artikel]

2015

Römer, Ulrich ; Schöps, Sebastian ; De Gersem, Herbert (2015):
An Adjoint Approach for Uncertainty Quantification of Magnetoquasistatic Field Problems.
In: International Conference on Electromagnetics in Advanced Applications (ICEAA) 2015, [Konferenzveröffentlichung]

Lass, Oliver ; Römer, Ulrich ; Schöps, Sebastian (2015):
Robust Shape Optimization of Accelerator Magnets.
In: PIERS Progress In Electromagnetics Research Symposium (PIERS) 2015, [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; De Gersem, Herbert (2015):
A Defect Correction Scheme for the Accurate Evaluation of Magnetic Fields on Unstructured Grids.
In: Proceedings of the 20th Conference on the Computation of Electromagnetic Fields, [Online-Edition: http://www.compumag2015.com],
[Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2015):
Magnetoquasistatic Simulation with Uncertainties and Applications in Magnet Design.
In: URSI AT-RASC 2015, [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian (2015):
Stochastic Modeling and Regularity of the Nonlinear Elliptic-Parabolic Magnetoquasistatic Equation.
Lecce, In: 86th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2015), [Konferenzveröffentlichung]

Römer, Ulrich (2015):
Numerical Approximation of the Magnetoquasistatic Model with Uncertainties and its Application to Magnet Design.
Darmstadt, Technische Universität, [Online-Edition: http://tuprints.ulb.tu-darmstadt.de/4950],
[Dissertation]

Römer, Ulrich ; Schöps, Sebastian ; De Gersem, Herbert (2015):
An Adjoint Approach for Uncertainty Quantifcation of Magnetoquasistatic Field Problems.
In: Proceedings of the International Conference on Electromagnetics in Advanced Applications, [Online-Edition: http://dx.doi.org/10.1109/ICEAA.2015.7297241],
[Buchkapitel]

Römer, Ulrich ; Schöps, Sebastian (2015):
Adjoint Error Estimation for a Pseudo-Spectral Approach to Stochastic Field-Circuit Coupled Problems.
In: Proceedings in Applied Mathematics and Mechanics, Wiley, S. 711-714, [Online-Edition: http://dx.doi.org/10.1002/pamm.201510345],
[Buchkapitel]

2014

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2014):
A Spline Based Shape Derivative Approach for the Nonlinear Magnetostatic Interface Problem.
In: 13th International Workshop on Optimization and Inverse Problems in Electromagnetism (OIPE2014), [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2014):
A Defect Correction Method for the Accurate Local Evaluation of Magnetic Fields.
In: URSI Kleinheubacher Tagung (KHB 2014), [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2014):
Methods for the Quantification of Uncertainties in Nonlinear Material Laws in Electrical Engineering.
In: 6th International Conference on Advanced COmputational Methods in ENgineering (ACOMEN), [Konferenzveröffentlichung]

Jansen, Lennart ; Römer, Ulrich ; Schöps, Sebastian (2014):
Abstract Differential-Algebraic Equations in Electrical Engineering.
Erlangen-Nürnberg, In: 85th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2014), [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2014):
First Order k-th Moment Analysis for the Nonlinear Eddy Current Problem.
In: SIAM Conference on Uncertainty Quantification 2014, [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2014):
Approximation of Moments for the Nonlinear Eddy Current Model with Material Uncertainties.
In: IEEE Transactions on Magnetics, 50, (2), [Online-Edition: http://dx.doi.org/10.1109/TMAG.2013.2284637],
[Artikel]

2013

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2013):
Approaches for the Quantification of Uncertainies in Stochasic Magnet Design.
In: Beam Dynamics meets Magnets in the EuCARD2 XBEAM-XRING Network, [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2013):
A First Order k-th Moment Method for the Nonlinear Magnetoquasistatics Problem with Material Uncertainties.
In: Kleinheubacher Tagung 2013, [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2013):
Second Moment Analysis of the Nonlinear Eddy Current Model with Material Uncertainties.
In: 19th International Conference on the Computation of Electromagnetic Fields COMPUMAG, [Konferenzveröffentlichung]

Klimek, Mariusz ; Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2013):
Discretization of Maxwell Equations in Geometric Algebra Setting.
In: URSI EMTS 2013, [Konferenzveröffentlichung]

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2013):
On Uncertainties in Low-Frequency Electromagnetics.
In: URSI Commission B Workshop, [Konferenzveröffentlichung]

Klimek, Mariusz ; Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2013):
Space-Time Discretization of Maxwell's Equations in the Setting of Geometric Algebra.
In: Proceedings of the URSI International Symposium on Electromagnetic Theory, S. 1-24, [Buchkapitel]

Bartel, Andreas ; De Gersem, Herbert ; Hülsmann, Timo ; Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2013):
Quantification of Uncertainty in the Field Quality of Magnets Originating from Material Measurements.
In: IEEE Transactions on Magnetics, S. 2367-2370, 49, (5), [Online-Edition: http://dx.doi.org/10.1109/TMAG.2013.2241041],
[Artikel]

2012

Römer, Ulrich ; Schöps, Sebastian ; Weiland, Thomas (2012):
On Uncertainties in Low-Frequency Electromagnetics.
In: Seminar in Numerical Analysis, [Konferenzveröffentlichung]

2011

Claßen, Christoph ; Gjonaj, Erion ; Römer, Ulrich ; Schuhmann, Rolf ; Weiland, Thomas (2011):
Modeling of Field Singularities at Dielectric Edges Using Grid Based Methods.
In: Advances in Radio Science, S. 39-44, 9, [Artikel]

2010

Römer, Ulrich ; Gjonaj, Erion ; Weiland, Thomas (2010):
A Discontinous Galerkin Method with Locally Singular Basis Functions.
In: Proceedings of the 10th International Workshop on Finite Elements for Microwave Engineering, [Konferenzveröffentlichung]