Difference between revisions of "Karl Hollaus"

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==== Address ====
 
==== Address ====
  
Institute for Analysis and Scientific Computing <br>
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Institute of Analysis and Scientific Computing <br>
 
Wiedner Hauptstrasse 8-10 <br>
 
Wiedner Hauptstrasse 8-10 <br>
 
A-1040 Vienna, Austria  
 
A-1040 Vienna, Austria  
  
 
phone: +43 1 58801 10116  
 
phone: +43 1 58801 10116  
email: [mailto:karl.hollaus@tuwien.ac.atNOSPAMPLEASE karl.hollaus@tuwien.ac.at]
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email: [mailto:karl.hollaus@tuwien.ac.atNOSPAMPLEASE karl.hollaus-at-tuwien.ac.at]
 
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==== Workshop ====
 
* [http://www.asc.tuwien.ac.at/mshom2016 Advances in Multi-Scale Methods and Homogenization for Laminates and Windings in Magnetic Fields MSHOM 2016]
 
  
 
==== Projects ====
 
==== Projects ====
 +
* [http://www.asc.tuwien.ac.at/~schoeberl/wiki/index.php/Projecthp-EMT4FS Effective Material Transformation for Ferromagnetic Sheets EMT4FS]
 
* [http://www.asc.tuwien.ac.at/~schoeberl/wiki/index.php/Projecthp-MSFEMs high-performance-Multiscale Finite Element Methods hp-MSFEMs]
 
* [http://www.asc.tuwien.ac.at/~schoeberl/wiki/index.php/Projecthp-MSFEMs high-performance-Multiscale Finite Element Methods hp-MSFEMs]
 
* [http://www.asc.tuwien.ac.at/~schoeberl/wiki/index.php/ProjectMSFEM4ECP Multi-Scale Finite Element Methods for Eddy Current Problems MSFEM4ECP]
 
* [http://www.asc.tuwien.ac.at/~schoeberl/wiki/index.php/ProjectMSFEM4ECP Multi-Scale Finite Element Methods for Eddy Current Problems MSFEM4ECP]
 +
 +
==== Workshop ====
 +
* [https://www.asc.tuwien.ac.at/mshom2020 Advances in Multi-Scale Methods and Homogenization for Laminates and Windings in Magnetic Fields MSHOM 2020]
 +
* [http://www.asc.tuwien.ac.at/mshom2016 Advances in Multi-Scale Methods and Homogenization for Laminates and Windings in Magnetic Fields MSHOM 2016]
  
 
==== Research Interests ====
 
==== Research Interests ====
 
Computational Electromagnetics, Finite Element Method, Multiscale Method and Homogenization, Domain Decomposition, Software Development  
 
Computational Electromagnetics, Finite Element Method, Multiscale Method and Homogenization, Domain Decomposition, Software Development  
([http://sourceforge.net/projects/netgen-mesher/ Netgen/NGSolve])
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([https://ngsolve.org/ Netgen/NGSolve])
  
 
==== Diploma Thesis ====
 
==== Diploma Thesis ====
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==== Talks ====
 
==== Talks ====
* Air Gap and Edge Effect in the 2D/1D Method with the Magnetic Vector Potential '''A''' Using MSFEM'', CEFC 2018, Hangzhou, China, Oct. 28 - 31, 2018.  [http://www.asc.tuwien.ac.at/~khollaus/Talks/CEFC_2018_EdgeEffect2D1D_Hollaus.pdf pdf]
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* ''The multiscale finite element method for the eddy current problem in laminated iron cores'', Workshop: Numerical analysis of nonlinear and multiscale problems, Jena, Germany, Jul. 27 - 29, 2022.
  
* ''The Multiscale Finite Element Method in three dimensions to simulate the Eddy Current Problem in Laminated Iron Cores'', 18th International IGTE Symposium 2018, Graz, Austria, Sept. 16 - 19, 2018. [http://www.asc.tuwien.ac.at/~khollaus/Talks/MSFEM_IGTE_2018_Hollaus.pdf pdf] (invited talk)
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* ''Multiscale Finite Element Method for the Eddy Current Problem in Laminated Iron Cores'', SIEMA 2021, Kharkiv, Ukraine, Oct. 21 - 22, 2021 (plenary talk).
  
* ''Homogenization of Laminated Cores and the Role of Surface Charges'', ICEAA2017, Verona, Italy, Sept. 11 - 15, 2017.
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* ''Multiscale Finite Element Method, Harmonic Balance Method and Model Order Reduction for Nonlinear Eddy Currents in Laminations'', CEFC 2020, Pisa, Italy, Nov. 16 - 18, 2020.
  
* ''Multiscale Finite Element Method and Geometric Perturbation of Laminated Cores'', ICEAA2017, Verona, Italy, Sept. 11 - 15, 2017.
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* ''Air Gap and Edge Effect in the 2D/1D Method with the Magnetic Vector Potential '''A''' Using MSFEM'', CEFC 2018, Hangzhou, China, Oct. 28 - 31, 2018. [http://www.asc.tuwien.ac.at/~khollaus/Talks/CEFC_2018_EdgeEffect2D1D_Hollaus.pdf pdf]
 
* ''Multiscale and Harmonic Balance FEM for the Eddy Current Problem in Laminated Iron Cores'', CEFC 2016, Miami, USA, Nov. 13 - 16, 2016. [http://www.asc.tuwien.ac.at/~khollaus/Talks/CEFC2016_Presentation_Hollaus_1.pdf pdf]
 
  
* ''Various Two Dimensional Multiscale Finite Element Formulations for the Eddy Current Problem in Iron Laminates'', EMF 2016, Lyon, France, April 12 - 14, 2016. [http://www.asc.tuwien.ac.at/~khollaus/Talks/EMF_Lyon_2016_Hollaus_1.pdf pdf] (highlighted talk)
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* ''The Multiscale Finite Element Method in three dimensions to simulate the Eddy Current Problem in Laminated Iron Cores'', 18th International IGTE Symposium 2018, Graz, Austria, Sept. 16 - 19, 2018. [http://www.asc.tuwien.ac.at/~khollaus/Talks/MSFEM_IGTE_2018_Hollaus.pdf pdf] (invited talk)
  
* ''Multi-Scale Finite Element Method to Simulate Eddy Currents in Laminated Iron'', SCEE 2014, Wuppertal, Germany, July 22 - 25, 2014. [http://www.asc.tuwien.ac.at/~khollaus/Talks/SCEE_Wuppertal_2014_Hollaus.pdf pdf]
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* ''MOR for the MSFEM of the Eddy Current Problem in Linear Laminated Media'', Mathmod 2018, Vienna, Austria, Feb. 16 - 18, 2018.
  
* ''Two-Scale Homogenization of the Nonlinear Eddy Current Problem with FEM'', Compumag 2013, Budapest, June 30 - July 4, 2013. [http://www.asc.tuwien.ac.at/~khollaus/Talks/Compumag_Budapest_2013_Hollaus_revised.pdf pdf]
+
* ''Homogenization of Laminated Cores and the Role of Surface Charges'', ICEAA2017, Verona, Italy, Sept. 11 - 15, 2017.
  
* ''FEM: Domain Decomposition and Homogenization for Maxwell's Equations of Large Scale Problems'', TCSE Vienna Workshop 2012, Vienna, February 13, 2012. [http://www.asc.tuwien.ac.at/~khollaus/Talks/MathMod2012_Hollaus.pdf pdf]
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* ''Multiscale Finite Element Method and Geometric Perturbation of Laminated Cores'', ICEAA2017, Verona, Italy, Sept. 11 - 15, 2017.
  
* ''Homogenization of the Eddy Current Problem in 2D'', 14th International IGTE Symposium 2010, Graz, Austria, Sept. 19 - 22, 2010. [http://www.asc.tuwien.ac.at/~khollaus/Talks/HomogenizationIGTE2010.pdf pdf]
+
==== Recent Works ====
  
* ''Novel Variation Formulation for Domain Decomposition to solve Maxwell's Equations'', DSPDES 2010, Barcelona, Spain, June 3, 2010. [http://www.asc.tuwien.ac.at/~khollaus/Talks/DSPDES_Barcelona_2010_Hollaus.pdf pdf]
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* V. Hanser, M. Schöbinger, K. Hollaus, "A T,Φ-Φ Multiscale Finite Element Formulation for Eddy Current Problems in Open Magnetic", Abstract for IEEE CEFC 2024, Jeju, Korea,  2-5 June 2024 (submitted, Dec. 2023).
 +
* K. Hollaus, V. Hanser, M. Schöbinger, "Effective Material and Static Magnetic Field for the 2D/1D-Problem of Laminated", Abstract for IEEE CEFC 2024, Jeju, Korea,  2-5 June 2024 (submitted, Dec. 2023).
 +
* M. Schöbinger, K. Hollaus, "Effective Interface Condition for Electromagnetic Shielding Using the T-Phi-Formulation", Abstract for IEEE CEFC 2024, Jeju, Korea,  2-5 June 2024 (submitted, Dec. 2023).
 +
* K. Hollaus, M. Schöbinger, C. Türk, "Modeling of a Winding by Segmentation and a Two Domain Method", Abstract for IEEE CEFC 2024, Jeju, Korea,  2-5 June 2024 (submitted, Dec. 2023).
 +
* K. Hollaus, V. Hanser, M. Schöbinger, ''Simulation of the Single Sheet of Electrical Machines with the Finite Element Method and an Effective Material'', Abstract for EMF 2023, Marseille, France, Aug. 29 - 31, 2023 (submitted, April., 2023).
 +
* M. Schöbinger, K. Hollaus, ''Simulation of Electromagnetic Shielding Using Effective Interface Conditions'', Abstract for EMF 2023, Marseille, France, Aug. 29 - 31, 2023 (submitted, April., 2023).
 +
* V. Hanser, M. Schöbinger, K. Hollaus, ''Effective Material Modelling for Laminated Iron Cores with a Magnetic Vector Potential Formulation and Magnetic Hysteresis'', Abstract for EMF 2023, Marseille, France, Aug. 29 - 31, 2023 (submitted, April., 2023).
  
==== Recent Work ====
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==== Book Chapters ====
* ''A Multiscale FEM for the Eddy Current Problem with '''A''',Phi - Phi in Laminated Conducting Media'', Digest for Compumag 2019, Paris, France, July 15-19, 2019 (submitted, Jan. 2019). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/Hollaus_MSFEM_T_Phi_Digest_Comp2019.pdf preprint]
 
  
* ''A 2D/1D Multiscale Finite Element Method Using the Biot-Savart Field for Synchronous Machines'', Digest for Compumag 2019, Paris, France, July 15-19, 2019 (submitted, Jan. 2019). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/Schoebinger_2D1D_MSFEM_Digest_Compumag2019.pdf preprint]
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#K. Hollaus, M. Schöbinger, "Multiscale Finite Element Method for Laminated Domains in Electrical Engineering", Compendium on Electromagnetic Analysis, From Electrostatics to Photonics: Fundamentals and Applications for Physicists and Engineers, Volume 2: The New Generation of Electric Machines, Aug. 2020. [https://doi.org/10.1142/10987-vol2 online]
 +
#Björk et al., "System-Level Design," in G.Q. Zhang, A.J. van Roosmalen "More than Moore - Creating High Value Micro/Nanoelectronics Systems," Springer, pp. 305-330, 2009. [http://link.springer.com/book/10.1007%2F978-0-387-75593-9 online]
  
* ''Imperfect EM Shielding by Thin Conducting Sheets with PEC and SIBC'', Digest for Compumag 2019, Paris, France, July 15-19, 2019 (submitted, Jan. 2019).[http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/Leumueller_EMC_Digest_Compumag2019.pdf preprint]
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==== Technical Article ====
  
* ''MSFEM and MOR to Minimize the Computational Costs of Nonlinear Eddy Current Problems in Laminated Iron Cores'', Digest for Compumag 2019, Paris, France, July 15-19, 2019 (submitted, Jan. 2019).[http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/Hollaus_MOR_Digest_Compumag2019.pdf preprint]
+
#H. Davtjan, M. Kaltenbacher, J. Schöberl, M. Schöbinger, K. Hollaus, "Multiscale finite element methods for eddy current problems in laminated iron MSFEM4ECP", Technical article, Newsletter, International Compumag Society, Volume 23 No. 2., pp. 3 - 13, July, 2016.
  
* ''Nonasymptotic Homogenization of Laminated Magnetic Cores'', Digest for Compumag 2019, Paris, France, July 15-19, 2019 (submitted, Jan. 2019). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/Tsukerman_Homogenization_Digest_Compumag2019.pdf preprint]
+
==== Journal Publications ====
  
* ''Air Gap and Edge Effect in the 2D/1D-Method with the Magnetic Vector Potential '''A''' using MSFEM'', Digest for CEFC 2018, Hangzhou, China, Oct. 28 - 31, 2018 (submitted, May, 2018). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/CEFC2018_Digest_Hollaus_EdgeEffect_2D1D.pdf preprint]
+
#M. Schöbinger, K. Hollaus, "An Equilibrated Error Estimator for the 2D/1D MSFEM T-Formulation of the Eddy Current Problem" IEEE Transactions on Magnetics, pp. 1-6, Feb. 2024, Art no. 7402104 [https://ieeexplore.ieee.org/document/10458704 online]  
 
+
#K. Hollaus, M. Schöbinger, "Multiscale Finite Element Formulations for 2D/1D Problems" IEEE Transactions on Energy Conversion, pp. 1-11, 2023, accepted [https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10319718 online].
* ''Simple and Cheap Structural MOR Method for the 2D/1D-MSFEM'', Abstract for CEFC 2018, Hangzhou, China, Oct. 28 - 31, 2018 (submitted, May, 2018). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/CEFC2018_Digest_Hollaus_MOR_2D1D.pdf preprint]
+
#K. Hollaus, M. Schöbinger, "MSFEM with MOR and DEIM to Solve Nonlinear Eddy Current Problems in Laminated Iron Cores" IEEE Transactions on Magnetics, pp. 1-4, 2023, Early Access, [https://ieeexplore.ieee.org/document/10250999 online]  
 
+
#M. Schöbinger, K. Hollaus, "A Novel MSFEM Approach Based on the '''A'''-Formulation for the Eddy Current Problem in 3D" IEEE Transactions on Magnetics, pp. 1-4, Jan. 2023, Art no. 7402104 [https://ieeexplore.ieee.org/document/10024987 online]
* ''A 2D/1D Multiscale FEM Model for the Nonlinear Eddy Current Problem in Thin Sheets'', Abstract for CEFC 2018, Hangzhou, China, Oct. 28 - 31, 2018 (submitted, May, 2018). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/CEFC2018_Digest_schoebinger.pdf preprint]
+
#V. A. Markel, M. Schöbinger, K. Hollaus, "A fast method to compute dispersion diagrams of three-dimensional photonic crystals with rectangular geometry", Comput. Phys. Commun., (2022), 21 pages. [https://doi.org/10.1016/j.cpc.2022.108441 online]
 
+
#M. Leumüller, K. Hollaus, "Multiscale Finite Element Method for Ventilation Panels" IEEE Transactions on Magnetics, vol. 58, no. 9, pp. 1-4, Sept. 2022, Art no. 7402104 [https://ieeexplore.ieee.org/document/9764738 online]
* ''MSFEM and MOR to simulate one laminate for electrical machines'', Abstract for EMF 2018, Darmstadt, Germany, April 10 - 12, 2018 (submitted, Dec., 2017). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/EMF2018_Abstract_MSFEM_MOR_Hollaus.pdf preprint]
+
#K. Hollaus, S. Bauer, M. Leumüller, Chr. Türk, "Measurement and Modeling of Effective Cable Parameters of Unshielded Conductors" COMPEL, 2021, vol. 41 no. 3, pp. 1041-1051, 2022. [https://doi.org/10.1108/COMPEL-03-2021-0098 online]
 
+
#M. Leumüller, K. Hollaus, J. Schöberl, "Domain Decomposition and Upscaling Technique for Metascreens" COMPEL, vol. 41 no. 3, pp. 938-953, 2022. [https://doi.org/10.1108/COMPEL-03-2021-0073 online]
* ''MOR for the MSFEM of the Eddy Current Problem in Linear Laminated Media'', Abstract for MATHMOD 2018, Vienna, Austria, Feb. 21 - 23, 2018 (submitted, Nov., 2017). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/Hollaus_MathMod2018_SMOR.pdf preprint]
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#V. Hanser, M. Schöbinger, K. Hollaus, "A Mixed Multiscale FEM for the Eddy Current Problem with '''T''', Phi - Phi and Vector Hysteresis" COMPEL, vol. 41 no. 3, pp. 852-866, 2022. [https://doi.org/10.1108/COMPEL-02-2021-0053 online]
 
+
#M. Schöbinger, I. Tsukerman, K. Hollaus, "Effective Medium Transformation: The Case of Eddy Currents in Laminated Iron Cores", IEEE Transactions on Magnetics, vol. 57, no. 11, 6 pages, 2021. [https://ieeexplore.ieee.org/document/9534750 online]
* ''MSFEM for the Linear 2D1D-Problem of Eddy Currents in Thin Iron Sheets'', Abstract for MATHMOD 2018, Vienna, Austria, Feb. 21 - 23, 2018 (submitted, Nov., 2017). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/Schoebinger_MathMod2018_MSFEM_2D1D.pdf preprint]
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#M. Schöbinger, K. Hollaus, "An Equilibrated Error Estimator for the Multiscale Finite Element Method of a 2-D Eddy Current Problem", IEEE Transactions on Magnetics, vol. 57, no. 6, 4 pages, 2021. [https://ieeexplore.ieee.org/document/9376958 online]
 
+
#M. Leumüller, B. Auinger, J. Schöberl, K. Hollaus, "Enhanced Technique for Metascreens Using the Generalized Finite Element Method", IEEE Transactions on Magnetics, vol. 57, no. 6, 4 pages, 2021. [https://ieeexplore.ieee.org/document/9374439 online]
* ''MSFEM with Network Coupling for the Eddy Current Problem of a Toroidal Transformer'', Abstract for ISTET 2017, Ilmenau, Germany, July 16 - 19, 2017 (submitted, April, 2017). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/ISTET2017_T.pdf preprint]
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#M. Schöbinger, K. Hollaus, "A Hierarchical Error Estimator for the MSFEM for the Eddy Current Problem in 3D", IEEE Transactions on Magnetics, vol. 57, no. 5, 4 pages, 2021. [https://ieeexplore.ieee.org/document/9363162 online]
 
+
#K. Hollaus, M. Schöbinger, "A Mixed Multiscale FEM for the Eddy-Current Problem With '''T''', Phi - Phi in Laminated Conducting Media", IEEE Transactions on Magnetics, vol. 56, no. 4, 4 pages, 2020. [https://ieeexplore.ieee.org/document/8957356 online]
* ''A Mixed Multiscale Finite Element Method with A and J for Eddy Currents in Iron Laminates'', Digest for Compumag 2017, Daejeon, Korea, June 18 - 22, 2017 (submitted, Jan., 2017). [http://www.asc.tuwien.ac.at/~khollaus/Recent_Work/Compumag2017_Hollaus_MixedFormulation_0.pdf preprint]
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#K. Hollaus, J. Schöberl, M. Schöbinger, "MSFEM and MOR to Minimize the Computational Costs of Nonlinear Eddy-Current Problems in Laminated Iron Cores", IEEE Transactions on Magnetics, vol. 56, no. 2, 4 pages, 2020. [https://ieeexplore.ieee.org/document/8955920 online]
 
+
#M. Leumüller, B. Auinger, H. Hackl, J. Schöberl and K. Hollaus, "Imperfect EM Shielding by Thin Conducting Sheets with PEC and SIBC", COMPUMAG, 4 pages, Oct. 2019. [https://ieeexplore.ieee.org/document/9032816 online]
 
+
#M. Schöbinger, K. Hollaus, I. Tsukerman, "Nonasymptotic Homogenization of Laminated Magnetic Cores", IEEE Transactions on Magnetics, vol. 56, no. 2, 4 pages, 2020. [https://ieeexplore.ieee.org/document/8954674 online]
==== Publications ====
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#K. Hollaus, M. Schöbinger, "Air Gap and Edge Effect in the 2D/1D-Method with the Magnetic Vector Potential '''A''' using MSFEM", IEEE Transactions on Magnetics, vol. 56, no. 1, 5 pages, 2020. [https://ieeexplore.ieee.org/document/8937060 online]
#K. Hollaus, J. Schöberl, M. Schöbinger, "''Air Gap and Edge Effect in the 2D/1D-Method with the Magnetic Vector Potential '''A''' using MSFEM", IEEE Transactions on Magnetics, submitted, Nov. 2018.[http://www.asc.tuwien.ac.at/~khollaus/Publications/Paper_CEFC2018_Hollaus_EdgeEffect_2D1D.pdf preprint]
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#K. Hollaus, "A MSFEM to simulate the eddy current problem in laminated iron cores in 3D" COMPEL, vol. 38 no. 5, pp. 1667-1682, 2019. [https://doi.org/10.1108/COMPEL-12-2018-0538 online]
#M. Schöbinger, S. Steentjes, K. Hameyer, J. Schöberl, K. Hollaus, "''MSFEM for the Eddy Current Problem in a Laminated Core Including Hysteresis", IEEE Transactions on Magnetics, submitted, Nov. 2018. [http://www.asc.tuwien.ac.at/~khollaus/Publications/MSFEM_Toroidal_Transformer_Including_Hysteresis.pdf preprint]
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#M. Schöbinger, S. Steentjes, K. Hameyer, J. Schöberl, K. Hollaus, "MSFEM for the Eddy Current Problem in a Laminated Core Including Hysteresis", IEEE Transactions on Magnetics, vol. 55, no. 8, 9 pages, 2019. [https://ieeexplore.ieee.org/document/8701455 online]
#M. Schöbinger, J. Schöberl, K. Hollaus, "MSFEM for the Linear 2D/1D-Problem of Eddy Currents in Thin Iron Sheets", IEEE Transactions on Magnetics, vol. 55, no. 1, 12 pages, 2019. [https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8544022/ online]
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#M. Schöbinger, J. Schöberl, K. Hollaus, "Multiscale FEM for the Linear 2D/1D-Problem of Eddy Currents in Thin Iron Sheets", IEEE Transactions on Magnetics, vol. 55, no. 1, 12 pages, 2019. [https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8544022/ online]
 
#K. Hollaus, J. Schöberl, "Some Two-Dimensional Multiscale Finite Element Formulations for the Eddy Current Problem in Iron Laminates", IEEE Transactions on Magnetics, vol. 54, no. 4, 7401716, 16 pages, 2018. [https://ieeexplore.ieee.org/document/8260951/ online]
 
#K. Hollaus, J. Schöberl, "Some Two-Dimensional Multiscale Finite Element Formulations for the Eddy Current Problem in Iron Laminates", IEEE Transactions on Magnetics, vol. 54, no. 4, 7401716, 16 pages, 2018. [https://ieeexplore.ieee.org/document/8260951/ online]
#K. Hollaus, M. Schöbinger, "Multiscale finite element method for perturbation of laminated structures", In ICEAA 2017, pp. 1262-1263. [https://ieeexplore.ieee.org/document/8065501/ online]
 
#M. Schöbinger, K. Hollaus, I. Tsukerman, "Homogenization of laminated magnetic cores and the role of surface charges", In ICEAA 2017, pp. 971-972. [https://ieeexplore.ieee.org/document/8065419/ online]
 
 
#Markus Schöbinger, J. Schöberl, K. Hollaus, "An Error Estimator for Multiscale FEM for the Eddy-Current Problem in Laminated Materials", IEEE Transactions on Magnetics, vol. 54, no. 3, 7203204, 4 pages, 2018. [http://ieeexplore.ieee.org/document/8288600/ online]  
 
#Markus Schöbinger, J. Schöberl, K. Hollaus, "An Error Estimator for Multiscale FEM for the Eddy-Current Problem in Laminated Materials", IEEE Transactions on Magnetics, vol. 54, no. 3, 7203204, 4 pages, 2018. [http://ieeexplore.ieee.org/document/8288600/ online]  
 
#Markus Schöbinger, J. Schöberl, K. Hollaus, "An Efficient Reformulation of a Multiscale Method for the Eddy Current Problem," COMPEL, vol. 36, pp. 1421-1429, 2017.
 
#Markus Schöbinger, J. Schöberl, K. Hollaus, "An Efficient Reformulation of a Multiscale Method for the Eddy Current Problem," COMPEL, vol. 36, pp. 1421-1429, 2017.
#K. Hollaus, "Multiscale and Harmonic Balance FEM for the Eddy Current Problem in Laminated Iron Cores". In Proc. 17th IEEE CEFC 2016, 13-16 Nov. 2016, Miami, USA.
 
#H. Davtjan, M. Kaltenbacher, J. Schöberl, M. Schöbinger, K. Hollaus, "Multiscale finite element methods for eddy current problems in laminated iron MSFEM4ECP", ''Technical article'', Newsletter, International Compumag Society, Volume 23 No. 2., pp. 3 - 13, July, 2016.
 
 
#K. Hollaus, J. Schöberl, "Multi-scale FEM and magnetic vector potential '''A''' for 3D eddy currents in laminated media," COMPEL, vol. 34, no. 5, pp. 1598-1608, 2015. [http://www.emeraldinsight.com/doi/pdfplus/10.1108/COMPEL-02-2015-0090 online]
 
#K. Hollaus, J. Schöberl, "Multi-scale FEM and magnetic vector potential '''A''' for 3D eddy currents in laminated media," COMPEL, vol. 34, no. 5, pp. 1598-1608, 2015. [http://www.emeraldinsight.com/doi/pdfplus/10.1108/COMPEL-02-2015-0090 online]
 
#K. Hollaus, J. Schöberl, "A Higher Order Multi-Scale FEM with '''A''' for 2D Eddy Current Problems in Laminated Iron", IEEE Transactions on Magnetics, vol. 51, no. 3, 7402804, 4 pages, March, 2015. [https://ieeexplore.ieee.org/document/7093479 online]
 
#K. Hollaus, J. Schöberl, "A Higher Order Multi-Scale FEM with '''A''' for 2D Eddy Current Problems in Laminated Iron", IEEE Transactions on Magnetics, vol. 51, no. 3, 7402804, 4 pages, March, 2015. [https://ieeexplore.ieee.org/document/7093479 online]
 
#K. Hollaus, A. Hannukainen, J. Schöberl, "Two-Scale Homogenization of the Nonlinear Eddy Current Problem with FEM," IEEE Transactions on Magnetics, vol. 50, no. 2, pp. 413-416, Feb., 2014. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6749045 online]
 
#K. Hollaus, A. Hannukainen, J. Schöberl, "Two-Scale Homogenization of the Nonlinear Eddy Current Problem with FEM," IEEE Transactions on Magnetics, vol. 50, no. 2, pp. 413-416, Feb., 2014. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6749045 online]
 
#K. Hollaus, M. Huber, J. Schöberl, P. Hamberger, "A Linear FEM Benchmark for the Homogenization of the Eddy Currents in Laminated Media in 3D," International Federation of Automatic Control IFAC, vol. 7, no. 1, pp. 1190-1194, 2012. [http://www.asc.tuwien.ac.at/~khollaus/Publications/hollaus_mathmod_paper.pdf preprint]
 
#K. Hollaus, M. Huber, J. Schöberl, P. Hamberger, "A Linear FEM Benchmark for the Homogenization of the Eddy Currents in Laminated Media in 3D," International Federation of Automatic Control IFAC, vol. 7, no. 1, pp. 1190-1194, 2012. [http://www.asc.tuwien.ac.at/~khollaus/Publications/hollaus_mathmod_paper.pdf preprint]
#K. Hollaus, J. Schöberl, "Two-scale FEM for the linear Eddy Current Problem in 3D," Proceedings of the 18th Compumag Conference on the Computation of Electromagnetic Fields, 12-15 July 2011, Sydney, Australia. [http://www.asc.tuwien.ac.at/~khollaus/Publications/Digest_Hollaus_Homogenization_Compumag2011.pdf preprint]
 
 
#K. Hollaus, J. Schöberl, "Homogenization of the Eddy Current Problem in 2D," Proceedings of the 14th International IGTE Symposium on Numerical Field Calculation in Electrical Engineering, pp. 154-159, Graz, Austria, September 19-22, 2010. [http://www.asc.tuwien.ac.at/~khollaus/Publications/Paper_Hollaus_Homogenization_IGTE2010.pdf preprint]
 
#K. Hollaus, J. Schöberl, "Homogenization of the Eddy Current Problem in 2D," Proceedings of the 14th International IGTE Symposium on Numerical Field Calculation in Electrical Engineering, pp. 154-159, Graz, Austria, September 19-22, 2010. [http://www.asc.tuwien.ac.at/~khollaus/Publications/Paper_Hollaus_Homogenization_IGTE2010.pdf preprint]
 
#K. Hollaus, D. Feldengut, J. Schöberl, M. Wabro, D. Omeragic, "Nitsche-type Mortaring for Maxwell's Equations," Progress In Electromagnetics Research Symposium Proceedings, 397 - 402, July 5-8, Cambridge, USA 2010. [http://www.asc.tuwien.ac.at/~khollaus/Publications/maxnitsche.pdf preprint]
 
#K. Hollaus, D. Feldengut, J. Schöberl, M. Wabro, D. Omeragic, "Nitsche-type Mortaring for Maxwell's Equations," Progress In Electromagnetics Research Symposium Proceedings, 397 - 402, July 5-8, Cambridge, USA 2010. [http://www.asc.tuwien.ac.at/~khollaus/Publications/maxnitsche.pdf preprint]
 
#K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, K. Preis, C. Stockreiter, "Extraction of Circuit Parameters from PCB by FDTD and SIBC," COMPEL, vol. 28, no. 4, pp. 1091-1101, 2009. [http://www.emeraldinsight.com/doi/pdfplus/10.1108/03321640910959134 online]
 
#K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, K. Preis, C. Stockreiter, "Extraction of Circuit Parameters from PCB by FDTD and SIBC," COMPEL, vol. 28, no. 4, pp. 1091-1101, 2009. [http://www.emeraldinsight.com/doi/pdfplus/10.1108/03321640910959134 online]
#Björk et al., "System-Level Design," in G.Q. Zhang, A.J. van Roosmalen "More than Moore - Creating High Value Micro/Nanoelectronics Systems," Springer, pp. 305-330, 2009. [http://link.springer.com/book/10.1007%2F978-0-387-75593-9 online]
 
 
#K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, and G. Plieschenegger, "Simulation of Crosstalk on Printed Circuit Boards by FDTD, FEM, and a Circuit Model," IEEE Transactions on Magnetics, vol. 44, pp. 1486-1489, April 2008.  [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4526893 online]
 
#K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, and G. Plieschenegger, "Simulation of Crosstalk on Printed Circuit Boards by FDTD, FEM, and a Circuit Model," IEEE Transactions on Magnetics, vol. 44, pp. 1486-1489, April 2008.  [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4526893 online]
 
#K. Hollaus, O. Bíró, K. Preis and C. Stockreiter, "Edge finite elements coupled with a circuit for wave problems," Internat. Conf. on Electromagnetics in Advanced Applications, ICEAA 2007, IEEE Xplore, pp. 956-959, Torino, Italy, 17th –21st Sept. 2007.  [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4387464 online]
 
#K. Hollaus, O. Bíró, K. Preis and C. Stockreiter, "Edge finite elements coupled with a circuit for wave problems," Internat. Conf. on Electromagnetics in Advanced Applications, ICEAA 2007, IEEE Xplore, pp. 956-959, Torino, Italy, 17th –21st Sept. 2007.  [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4387464 online]
Line 154: Line 154:
 
#O. Bíró, K. Hollaus, J. Pávó and K. Preis, "Numerical computation of the magnetic field due to a crack in a conducting plate", in Short Papers of The Sixth International Workshop on Electromagnetic Nondestructive Evaluation, ISBN 9-634206-42-5, Budapest, Hungary, pp. 7-8, 28th-30th July, 2000.
 
#O. Bíró, K. Hollaus, J. Pávó and K. Preis, "Numerical computation of the magnetic field due to a crack in a conducting plate", in Short Papers of The Sixth International Workshop on Electromagnetic Nondestructive Evaluation, ISBN 9-634206-42-5, Budapest, Hungary, pp. 7-8, 28th-30th July, 2000.
 
#K. Hollaus, O. Bíró, "Estimation of 3-D eddy currents in conducting laminations by an anisotropic conductivity and a 1-D analytical solution", COMPEL, vol. 18, no. 3, pp. 494-503, 1999. [http://www.emeraldinsight.com/doi/pdfplus/10.1108/03321649910275170 online]
 
#K. Hollaus, O. Bíró, "Estimation of 3-D eddy currents in conducting laminations by an anisotropic conductivity and a 1-D analytical solution", COMPEL, vol. 18, no. 3, pp. 494-503, 1999. [http://www.emeraldinsight.com/doi/pdfplus/10.1108/03321649910275170 online]
 +
 +
==== Proceedings ====
 +
 +
#V. Hanser, M. Schöbinger, K. Hollaus, "Multiscale Finite Element Formulations for the Eddy Current Problem in Open Magnetic Circuits", pp. 1-2, 2022. [https://ieeexplore.ieee.org/document/9940851 online]
 +
#M. Schöbinger, K. Hollaus, "A Novel MSFEM Approach Based on the A-Formulation for Eddy Currents in Iron Sheets", pp. 1-2, 2022. [https://ieeexplore.ieee.org/document/9940800 online]
 +
#K. Hollaus, M. Schöbinger, "Multiscale Finite Element Formulations for 2D/1D Problems", pp. 1-2, 2022. [https://ieeexplore.ieee.org/document/9940831 online]
 +
#K. Hollaus, M. Schöbinger, "Nonlinear Eddy Currents in Laminations, Multiscale Finite Element Method, Harmonic Balance Method and Model Order Reduction", pp. 1-2, 2022. [https://ieeexplore.ieee.org/document/9940707 online]
 +
#M. Schöbinger, K. Hollaus, "A Computationally Cheap Error Estimator for the 3D Eddy Current Problem Using a MSFEM Approach Based on the A-Formulation", pp. 1-2, 2022. [https://ieeexplore.ieee.org/document/9940671 online]
 +
#V. Hanser, M. Schöbinger, K. Hollaus, "Efficient Computation of Eddy Current Losses in Laminated Cores with Air Gaps by the Multiscale FEM", pp. 1-4, 2022.[https://ieeexplore.ieee.org/document/9827497 online]
 +
#M. Schöbinger, M. T. Bin Tarek, Y. Sozer, I. Tsukerman, K. Hollaus, "Magnetic Microwire Materials Route Magnetic Flux in Screens and Cores of Electrical Machines", pp. 1-4, 2022. [https://ieeexplore.ieee.org/document/9827508 online]
 +
#K. Hollaus, M. Schöbinger, "Multiscale finite element method for perturbation of laminated structures", In ICEAA 2017, pp. 1262-1263. [https://ieeexplore.ieee.org/document/8065501/ online]
 +
#M. Schöbinger, K. Hollaus, I. Tsukerman, "Homogenization of laminated magnetic cores and the role of surface charges", In ICEAA 2017, pp. 971-972. [https://ieeexplore.ieee.org/document/8065419/ online]
 +
#K. Hollaus, "Multiscale and Harmonic Balance FEM for the Eddy Current Problem in Laminated Iron Cores". In Proc. 17th IEEE CEFC 2016, 13-16 Nov. 2016, Miami, USA. [https://ieeexplore.ieee.org/document/7816275 online]

Latest revision as of 10:15, 6 March 2024

 

Address

Institute of Analysis and Scientific Computing
Wiedner Hauptstrasse 8-10
A-1040 Vienna, Austria

phone: +43 1 58801 10116 email: karl.hollaus-at-tuwien.ac.at

Projects

Workshop

Research Interests

Computational Electromagnetics, Finite Element Method, Multiscale Method and Homogenization, Domain Decomposition, Software Development (Netgen/NGSolve)

Diploma Thesis

Identifikation optimaler Geometrieparameter einer SMES - Spulenanordnung mit deterministischen und stochastischen Optimierungsverfahren, TU Graz and Dipartimento di Ingegneria Elettrica, Università degli Studi di Genova, 1997.

PhD Thesis

Numerical Simulation of Eddy Currents and the Associated Losses in Laminated Ferromagnetic Materials by the Method of Finite Elements, TU Graz, 2001. pdf

Teaching

"Partielle Differentialgleichungen und Methode der finiten Elemente"

Talks

  • The multiscale finite element method for the eddy current problem in laminated iron cores, Workshop: Numerical analysis of nonlinear and multiscale problems, Jena, Germany, Jul. 27 - 29, 2022.
  • Multiscale Finite Element Method for the Eddy Current Problem in Laminated Iron Cores, SIEMA 2021, Kharkiv, Ukraine, Oct. 21 - 22, 2021 (plenary talk).
  • Multiscale Finite Element Method, Harmonic Balance Method and Model Order Reduction for Nonlinear Eddy Currents in Laminations, CEFC 2020, Pisa, Italy, Nov. 16 - 18, 2020.
  • Air Gap and Edge Effect in the 2D/1D Method with the Magnetic Vector Potential A Using MSFEM, CEFC 2018, Hangzhou, China, Oct. 28 - 31, 2018. pdf
  • The Multiscale Finite Element Method in three dimensions to simulate the Eddy Current Problem in Laminated Iron Cores, 18th International IGTE Symposium 2018, Graz, Austria, Sept. 16 - 19, 2018. pdf (invited talk)
  • MOR for the MSFEM of the Eddy Current Problem in Linear Laminated Media, Mathmod 2018, Vienna, Austria, Feb. 16 - 18, 2018.
  • Homogenization of Laminated Cores and the Role of Surface Charges, ICEAA2017, Verona, Italy, Sept. 11 - 15, 2017.
  • Multiscale Finite Element Method and Geometric Perturbation of Laminated Cores, ICEAA2017, Verona, Italy, Sept. 11 - 15, 2017.

Recent Works

  • V. Hanser, M. Schöbinger, K. Hollaus, "A T,Φ-Φ Multiscale Finite Element Formulation for Eddy Current Problems in Open Magnetic", Abstract for IEEE CEFC 2024, Jeju, Korea, 2-5 June 2024 (submitted, Dec. 2023).
  • K. Hollaus, V. Hanser, M. Schöbinger, "Effective Material and Static Magnetic Field for the 2D/1D-Problem of Laminated", Abstract for IEEE CEFC 2024, Jeju, Korea, 2-5 June 2024 (submitted, Dec. 2023).
  • M. Schöbinger, K. Hollaus, "Effective Interface Condition for Electromagnetic Shielding Using the T-Phi-Formulation", Abstract for IEEE CEFC 2024, Jeju, Korea, 2-5 June 2024 (submitted, Dec. 2023).
  • K. Hollaus, M. Schöbinger, C. Türk, "Modeling of a Winding by Segmentation and a Two Domain Method", Abstract for IEEE CEFC 2024, Jeju, Korea, 2-5 June 2024 (submitted, Dec. 2023).
  • K. Hollaus, V. Hanser, M. Schöbinger, Simulation of the Single Sheet of Electrical Machines with the Finite Element Method and an Effective Material, Abstract for EMF 2023, Marseille, France, Aug. 29 - 31, 2023 (submitted, April., 2023).
  • M. Schöbinger, K. Hollaus, Simulation of Electromagnetic Shielding Using Effective Interface Conditions, Abstract for EMF 2023, Marseille, France, Aug. 29 - 31, 2023 (submitted, April., 2023).
  • V. Hanser, M. Schöbinger, K. Hollaus, Effective Material Modelling for Laminated Iron Cores with a Magnetic Vector Potential Formulation and Magnetic Hysteresis, Abstract for EMF 2023, Marseille, France, Aug. 29 - 31, 2023 (submitted, April., 2023).

Book Chapters

  1. K. Hollaus, M. Schöbinger, "Multiscale Finite Element Method for Laminated Domains in Electrical Engineering", Compendium on Electromagnetic Analysis, From Electrostatics to Photonics: Fundamentals and Applications for Physicists and Engineers, Volume 2: The New Generation of Electric Machines, Aug. 2020. online
  2. Björk et al., "System-Level Design," in G.Q. Zhang, A.J. van Roosmalen "More than Moore - Creating High Value Micro/Nanoelectronics Systems," Springer, pp. 305-330, 2009. online

Technical Article

  1. H. Davtjan, M. Kaltenbacher, J. Schöberl, M. Schöbinger, K. Hollaus, "Multiscale finite element methods for eddy current problems in laminated iron MSFEM4ECP", Technical article, Newsletter, International Compumag Society, Volume 23 No. 2., pp. 3 - 13, July, 2016.

Journal Publications

  1. M. Schöbinger, K. Hollaus, "An Equilibrated Error Estimator for the 2D/1D MSFEM T-Formulation of the Eddy Current Problem" IEEE Transactions on Magnetics, pp. 1-6, Feb. 2024, Art no. 7402104 online
  2. K. Hollaus, M. Schöbinger, "Multiscale Finite Element Formulations for 2D/1D Problems" IEEE Transactions on Energy Conversion, pp. 1-11, 2023, accepted online.
  3. K. Hollaus, M. Schöbinger, "MSFEM with MOR and DEIM to Solve Nonlinear Eddy Current Problems in Laminated Iron Cores" IEEE Transactions on Magnetics, pp. 1-4, 2023, Early Access, online
  4. M. Schöbinger, K. Hollaus, "A Novel MSFEM Approach Based on the A-Formulation for the Eddy Current Problem in 3D" IEEE Transactions on Magnetics, pp. 1-4, Jan. 2023, Art no. 7402104 online
  5. V. A. Markel, M. Schöbinger, K. Hollaus, "A fast method to compute dispersion diagrams of three-dimensional photonic crystals with rectangular geometry", Comput. Phys. Commun., (2022), 21 pages. online
  6. M. Leumüller, K. Hollaus, "Multiscale Finite Element Method for Ventilation Panels" IEEE Transactions on Magnetics, vol. 58, no. 9, pp. 1-4, Sept. 2022, Art no. 7402104 online
  7. K. Hollaus, S. Bauer, M. Leumüller, Chr. Türk, "Measurement and Modeling of Effective Cable Parameters of Unshielded Conductors" COMPEL, 2021, vol. 41 no. 3, pp. 1041-1051, 2022. online
  8. M. Leumüller, K. Hollaus, J. Schöberl, "Domain Decomposition and Upscaling Technique for Metascreens" COMPEL, vol. 41 no. 3, pp. 938-953, 2022. online
  9. V. Hanser, M. Schöbinger, K. Hollaus, "A Mixed Multiscale FEM for the Eddy Current Problem with T, Phi - Phi and Vector Hysteresis" COMPEL, vol. 41 no. 3, pp. 852-866, 2022. online
  10. M. Schöbinger, I. Tsukerman, K. Hollaus, "Effective Medium Transformation: The Case of Eddy Currents in Laminated Iron Cores", IEEE Transactions on Magnetics, vol. 57, no. 11, 6 pages, 2021. online
  11. M. Schöbinger, K. Hollaus, "An Equilibrated Error Estimator for the Multiscale Finite Element Method of a 2-D Eddy Current Problem", IEEE Transactions on Magnetics, vol. 57, no. 6, 4 pages, 2021. online
  12. M. Leumüller, B. Auinger, J. Schöberl, K. Hollaus, "Enhanced Technique for Metascreens Using the Generalized Finite Element Method", IEEE Transactions on Magnetics, vol. 57, no. 6, 4 pages, 2021. online
  13. M. Schöbinger, K. Hollaus, "A Hierarchical Error Estimator for the MSFEM for the Eddy Current Problem in 3D", IEEE Transactions on Magnetics, vol. 57, no. 5, 4 pages, 2021. online
  14. K. Hollaus, M. Schöbinger, "A Mixed Multiscale FEM for the Eddy-Current Problem With T, Phi - Phi in Laminated Conducting Media", IEEE Transactions on Magnetics, vol. 56, no. 4, 4 pages, 2020. online
  15. K. Hollaus, J. Schöberl, M. Schöbinger, "MSFEM and MOR to Minimize the Computational Costs of Nonlinear Eddy-Current Problems in Laminated Iron Cores", IEEE Transactions on Magnetics, vol. 56, no. 2, 4 pages, 2020. online
  16. M. Leumüller, B. Auinger, H. Hackl, J. Schöberl and K. Hollaus, "Imperfect EM Shielding by Thin Conducting Sheets with PEC and SIBC", COMPUMAG, 4 pages, Oct. 2019. online
  17. M. Schöbinger, K. Hollaus, I. Tsukerman, "Nonasymptotic Homogenization of Laminated Magnetic Cores", IEEE Transactions on Magnetics, vol. 56, no. 2, 4 pages, 2020. online
  18. K. Hollaus, M. Schöbinger, "Air Gap and Edge Effect in the 2D/1D-Method with the Magnetic Vector Potential A using MSFEM", IEEE Transactions on Magnetics, vol. 56, no. 1, 5 pages, 2020. online
  19. K. Hollaus, "A MSFEM to simulate the eddy current problem in laminated iron cores in 3D" COMPEL, vol. 38 no. 5, pp. 1667-1682, 2019. online
  20. M. Schöbinger, S. Steentjes, K. Hameyer, J. Schöberl, K. Hollaus, "MSFEM for the Eddy Current Problem in a Laminated Core Including Hysteresis", IEEE Transactions on Magnetics, vol. 55, no. 8, 9 pages, 2019. online
  21. M. Schöbinger, J. Schöberl, K. Hollaus, "Multiscale FEM for the Linear 2D/1D-Problem of Eddy Currents in Thin Iron Sheets", IEEE Transactions on Magnetics, vol. 55, no. 1, 12 pages, 2019. online
  22. K. Hollaus, J. Schöberl, "Some Two-Dimensional Multiscale Finite Element Formulations for the Eddy Current Problem in Iron Laminates", IEEE Transactions on Magnetics, vol. 54, no. 4, 7401716, 16 pages, 2018. online
  23. Markus Schöbinger, J. Schöberl, K. Hollaus, "An Error Estimator for Multiscale FEM for the Eddy-Current Problem in Laminated Materials", IEEE Transactions on Magnetics, vol. 54, no. 3, 7203204, 4 pages, 2018. online
  24. Markus Schöbinger, J. Schöberl, K. Hollaus, "An Efficient Reformulation of a Multiscale Method for the Eddy Current Problem," COMPEL, vol. 36, pp. 1421-1429, 2017.
  25. K. Hollaus, J. Schöberl, "Multi-scale FEM and magnetic vector potential A for 3D eddy currents in laminated media," COMPEL, vol. 34, no. 5, pp. 1598-1608, 2015. online
  26. K. Hollaus, J. Schöberl, "A Higher Order Multi-Scale FEM with A for 2D Eddy Current Problems in Laminated Iron", IEEE Transactions on Magnetics, vol. 51, no. 3, 7402804, 4 pages, March, 2015. online
  27. K. Hollaus, A. Hannukainen, J. Schöberl, "Two-Scale Homogenization of the Nonlinear Eddy Current Problem with FEM," IEEE Transactions on Magnetics, vol. 50, no. 2, pp. 413-416, Feb., 2014. online
  28. K. Hollaus, M. Huber, J. Schöberl, P. Hamberger, "A Linear FEM Benchmark for the Homogenization of the Eddy Currents in Laminated Media in 3D," International Federation of Automatic Control IFAC, vol. 7, no. 1, pp. 1190-1194, 2012. preprint
  29. K. Hollaus, J. Schöberl, "Homogenization of the Eddy Current Problem in 2D," Proceedings of the 14th International IGTE Symposium on Numerical Field Calculation in Electrical Engineering, pp. 154-159, Graz, Austria, September 19-22, 2010. preprint
  30. K. Hollaus, D. Feldengut, J. Schöberl, M. Wabro, D. Omeragic, "Nitsche-type Mortaring for Maxwell's Equations," Progress In Electromagnetics Research Symposium Proceedings, 397 - 402, July 5-8, Cambridge, USA 2010. preprint
  31. K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, K. Preis, C. Stockreiter, "Extraction of Circuit Parameters from PCB by FDTD and SIBC," COMPEL, vol. 28, no. 4, pp. 1091-1101, 2009. online
  32. K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, and G. Plieschenegger, "Simulation of Crosstalk on Printed Circuit Boards by FDTD, FEM, and a Circuit Model," IEEE Transactions on Magnetics, vol. 44, pp. 1486-1489, April 2008. online
  33. K. Hollaus, O. Bíró, K. Preis and C. Stockreiter, "Edge finite elements coupled with a circuit for wave problems," Internat. Conf. on Electromagnetics in Advanced Applications, ICEAA 2007, IEEE Xplore, pp. 956-959, Torino, Italy, 17th –21st Sept. 2007. online
  34. B. Weiß, O. Bíró, P. Caldera, K. Hollaus, G. Paoli, K. Preis, "A Multigrid Algorithm for the Transfinite-Element Time-Domain Method using the A, V -Formulation", IEEE Transactions on Magnetics, vol. 43, pp. 1353-1356, April 2007. online
  35. C. Stockreiter, G. Matzenauer, O. Biro, P. Caldera, G. Paoli, K. Hollaus, K. Preis, B. Weiss, "Transfinite Element Method Using the A, v-Potential Formulation With Edge Elements in the Frequency Domain," IEEE Transactions on Magnetics, vol. 43, pp. 1349-1352, April 2007. online
  36. W. Renhart, K. Hollaus, C. Magele and G. Matzenauer, "Radiation of USB-WLAN Antenna Influenced by Human Tissue and by Notebook Enclosure," IEEE Transactions on Magnetics, vol. 43, pp. 1345-1348, April 2007. online
  37. B. Weiß, O. Bíró, P. Caldera, K. Hollaus, G. Paoli, K. Preis, C. Stockreiter, "On the convergence of the transfinite-element method," COMPEL, vol. 26, no. 3, pp. 600-611, 2007. online
  38. G. Matzenauer, O. Bíró, K. Hollaus, K. Preis, W. Renhart, "Perfectly Matched Layers for T, Phi Formulation," COMPEL, vol. 26, no. 3, pp. 612-625, 2007. online
  39. H. Scharfetter, K. Hollaus, J. Rosell-Ferrer, R. Merwa, "Single-step 3-D image reconstruction in magnetic induction tomography: Theoretical limits of spatial resolution and contrast to noise ratio," Annals of Biomedical Engineering, pp. 1-13, 2006. online
  40. K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, K. Preis, W. Renhart, C. Stockreiter and B. Weiß, "Simulation of Microstrips on Printed Circuit Boards," Tagungsband des 51. Internationalen Wissenschaftliches Kolloquium der TU Ilmenau, ISBN 3-938843-16-0, 5 pages, Ilmenau, Germany, 11-15, September 2006. preprint
  41. K. Hollaus, O. Bíró, K. Preis, C. Stockreiter and B. Weiß, "S-Parameter Extraction from Structures on Printed Circuit Boards by FDTD and Surface Impedance Boundary Condition," Proceedings of The Twelfth IEEE Conference on Electromagnetic Field Computation, ISBN 1-4244-0319-7, p. 378, Miami, USA, April 30th-May 3rd, 2006. online
  42. K. Hollaus, O. Bíró, G. Matzenauer, K. Preis, C. Stockreiter, B. Weiß, P. Caldera and G. Paoli, "Comparison of FETD and FDTD to Simulate Micro-strip Structures on PCBs," Proceedings of The Sixth International Conference on Computation in Electromagnetics CEM 2006, ISBN 3-8007-2957-1, p. 209-210, Aachen, Germany, April 4-6, 2006. preprint
  43. B. Weiß, O. Bíró, K. Hollaus, K. Preis, P. Caldera, G. Paoli, "A Multigrid Solver for Time Harmonic Three-Dimensional Electromagnetic Wave Problems," IEEE Transactions on Magnetics, vol. 42, pp. 639-642, April 2006. online
  44. K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, K. Preis, C. Stockreiter, and B. Weiss, "Electromagnetic Field Computation of Simple Structures on Printed Circuit Boards by the Finite-Element Method," IEEE Transactions on Magnetics, vol. 42, pp. 815-818, April 2006. online
  45. B. Wagner, K. Hollaus, Ch. Magele, "Reconstruction of the anisotropic complex conductivity distribution of a human thigh in three dimensions," IEEE Transactions on Magnetics, vol. 42, pp. 1171-1174, April 2006. online
  46. P. Brunner, R. Merwa, A. Missner, J. Rosell, K. Hollaus, H. Scharfetter, "Reconstruction of the shape of conductivity spectra using differential multi-frequency magnetic induction tomography", Physiol. Meas., vol. 27, no. 5, pp. 237-248, May 2006. online
  47. R. Merwa, P. Brunner, A. Missner, K. Hollaus, H. Scharfetter, "Solution of the inverse problem of magnetic induction tomography (MIT) with multiple objects: analysis of detectability and statistical properties with respect to the reconstructed conducting region", Physiol. Meas., vol. 27, no. 5, pp. 249-259, May 2006. online
  48. K. Hollaus, B. Wagner, O. Bíró, "Simulation of the quasi-static electric field by an electric current vector potential approximated by edge elements", COMPEL, vol. 24, no. 2, pp. 581-590, 2005. online
  49. B. Wagner, K. Hollaus, Ch. Magele, "Reconstruction of the anisotropic complex conductivity distribution in 3D", COMPEL, vol. 24, no. 2, pp. 558-564, 2005. online
  50. K. Hollaus, O. Bíró, P. Caldera, G. Matzenauer, G. Paoli, K. Preis, B. Weiss, "Simulation of Simple Topologies on a PCB by a Frequency and a Time Domain Method," Proceedings of Joint 9th ICEAA `05 and 11th EESC `05, Torino, Italy, 12th Sept. – 16th Sept. 2005, ISBN 88-8202-094-0, pp. 893-896.preprint
  51. K. Hollaus, O. Bíró, "Comparison of Tetrahedral Edge Finite-Elements Using Different Potential Formulations,” IEEE Transactions on Magnetics, vol. 41, pp. 1676-1679, May 2005. online
  52. K. Hollaus, O. Bíró, C. Gerstenberger, K. Preis, R. Stollberger, B. Wagner, "Effect of Stray Capacitances on Bio-Impedances in Quasi-Static Electric Field,” IEEE Transactions on Magnetics, vol. 41, pp. 1940-1943, May 2005. online
  53. R. Merwa, K. Hollaus, P. Brunner, H. Scharfetter, "Solution of the inverse problem of magnetic induction tomography (MIT)", Physiol. Meas., vol. 26, no. 2, pp. 241-250, April 2005. online
  54. K. Hollaus, C. Gerstenberger, C. Magele, H. Hutten, "Accurate Reconstruction Algorithm of the Complex Conductivity Distribution in Three Dimensions," IEEE Transactions on Magnetics, vol. 40, pp. 1144-1147, March 2004. online
  55. K. Hollaus, C. Magele, R. Merwa, H. Scharfetter, "Numerical Simulation of the Eddy Current Problem in Magnetic Induction Tomography for Biomedical Applications by Edge Elements,” IEEE Transactions on Magnetics, vol. 40, pp. 623-626, March 2004. online
  56. K. Hollaus, C. Magele, R. Merwa, H. Scharfetter, "Fast calculation of the sensitivity matrix in magnetic induction tomography by tetrahedral edge finite elements and the reciprocity theorem", Physiol. Meas., vol. 25, no. 1, pp. 159-168, February 2004. online
  57. K. Hollaus, B. Weiß, Ch. Magele, H. Hutten, "Geometric multigrid to accelerate the solution of the quasi-static electric field problem by tetrahedral finite elements", Physiol. Meas., vol. 25, no. 1, pp. 169-179, February 2004. online
  58. R. Casañas, H. Scharfetter, A. Altes, A. Remacha, P. Sarda, J. Sierra, R. Merwa, K. Hollaus, J. Rosell, "Measurement of liver iron overload by magnetic induction using a planar gradiometer: preliminary human results", Physiol. Meas., vol. 25, no. 1, pp. 315-323, February 2004. online
  59. H. Scharfetter, S. Rauchenzauner, R. Merwa, O. Bíró, K. Hollaus, "Planar gradiometer for magnetic induction tomography (MIT): theoretical and experimental sensitivity maps for a low-contrast phantom", Physiol. Meas., vol. 25, no. 1, pp. 325-333, February 2004. online
  60. R. Merwa, K. Hollaus, O. Bíró, H. Scharfetter, "Detection of brain oedema using magnetic induction tomography: A feasibility study of the likely sensitivity and detectability", Physiol. Meas., vol. 25, no. 1, pp. 347-354, February 2004. online
  61. R. Casañas, H. Scharfetter, A. Altes, A. Remacha, P. Sarda, J. Sierra, R. Merwa, K. Hollaus, J. Rosell, "In-vitro and in-vivo measurement of iron concentration in human hepatic tissue by magnetic induction methods," Proc. 25th Annual Int. Conf. IEEE, Eng. in Med. and Biol. Society, vol. 4, pp. 3064-3067, Sept. 2003. online
  62. K. Hollaus, R. Stollberger, B. Wagner, C. Gerstenberger, Ch. Magele, H. Hutten, "Simulations of the bio-impedance of the human thigh by the finite element method in 3D", Tagungsband des 48. Internationalen Wissenschaftliches Kolloquium der TU Ilmenau, ISSN 1619-4098, pp. 425-426, Ilmenau, Germany, 22-25, September 2003. preprint
  63. R. Merwa, K. Hollaus, B. Brandstätter, H. Scharfetter, "Numerical solution of the general 3D eddy current problem for magnetic induction tomography (spectroscopy)", Physiol. Meas., vol. 24, no. 2, pp. 545-554, May 2003. online
  64. B. Brandstätter, K. Hollaus, Ch. Magele, M. Michael, R. Merwa, H. Scharfetter, H. Hutten, "Direct estimation of Cole parameters in multifrequency EIT using a regularized Gauss-Newton method", Physiol. Meas., vol. 24, no. 2, pp. 437-448, May 2003. online
  65. K. Hollaus, O. Bíró, B. Brandstätter, S. P. Cermak, H. Zangl, G. Brasseur, "Design and Optimization of a Multi-Induction-Loop Access Control System", Proceedings of the International Symposium on Electromagnetic Compatibility, EMC Europe 2002, vol. 2, pp. 883-888, Sorrent, Italy, September 9-13, 2002. preprint
  66. K. Hollaus, O. Bíró, "Derivation of a Complex Permeability from the Preisach Model," IEEE Transactions on Magnetics, vol. 38, pp. 905-908, March 2002. online
  67. D. Rodger, P. C. Coles, O. Bíró, K. Hollaus, J. Pávó, "An Aluminium Plate Benchmark for ECT", in Electromagnetic Nondestructive Evaluation (V), eds. J. Pávó et al, IOS Press, Amsterdam, vol. 21, pp. 46-48, 2001. online
  68. O. Bíró, K. Hollaus, J. Pávó and K. Preis, "Numerical computation of the magnetic field due to a crack in a conducting plate", in Electromagnetic Nondestructive Evaluation (V), eds. J. Pávó et al, IOS Press, Amsterdam, vol. 21, pp. 11-15, 2001. online
  69. J. Pávó, O. Bíró, K. Hollaus, "Calculation of the field map from the measurement data of the fluxset sensor", COMPEL, vol. 20, no. 2, pp. 404-416, 2001. online
  70. K. Hollaus, O. Bíró, "A FEM of the Eddy Current Losses in Thin Ferromagnetic Sheets", Proceedings of the 9th International IGTE Symposium on Numerical Field Calculation in Electrical Engineering, pp. 152-157, Graz, Austria, September 11-13, 2000. preprint
  71. K. Hollaus, O. Bíró, "A FEM Formulation to Treat 3D Eddy Currents in Laminations," IEEE Transactions on Magnetics, vol. 36, pp. 1289-1292, July 2000. online
  72. D. Rodger, P. C. Coles, O. Bíró, K. Hollaus, J. Pávó, "An Aluminium Plate Benchmark for ECT", in Short Papers of The Sixth International Workshop on Electromagnetic Nondestructive Evaluation, ISBN 9-634206-42-5, Budapest, Hungary, pp. 39-40, 28th-30th July, 2000.
  73. O. Bíró, K. Hollaus, J. Pávó and K. Preis, "Numerical computation of the magnetic field due to a crack in a conducting plate", in Short Papers of The Sixth International Workshop on Electromagnetic Nondestructive Evaluation, ISBN 9-634206-42-5, Budapest, Hungary, pp. 7-8, 28th-30th July, 2000.
  74. K. Hollaus, O. Bíró, "Estimation of 3-D eddy currents in conducting laminations by an anisotropic conductivity and a 1-D analytical solution", COMPEL, vol. 18, no. 3, pp. 494-503, 1999. online

Proceedings

  1. V. Hanser, M. Schöbinger, K. Hollaus, "Multiscale Finite Element Formulations for the Eddy Current Problem in Open Magnetic Circuits", pp. 1-2, 2022. online
  2. M. Schöbinger, K. Hollaus, "A Novel MSFEM Approach Based on the A-Formulation for Eddy Currents in Iron Sheets", pp. 1-2, 2022. online
  3. K. Hollaus, M. Schöbinger, "Multiscale Finite Element Formulations for 2D/1D Problems", pp. 1-2, 2022. online
  4. K. Hollaus, M. Schöbinger, "Nonlinear Eddy Currents in Laminations, Multiscale Finite Element Method, Harmonic Balance Method and Model Order Reduction", pp. 1-2, 2022. online
  5. M. Schöbinger, K. Hollaus, "A Computationally Cheap Error Estimator for the 3D Eddy Current Problem Using a MSFEM Approach Based on the A-Formulation", pp. 1-2, 2022. online
  6. V. Hanser, M. Schöbinger, K. Hollaus, "Efficient Computation of Eddy Current Losses in Laminated Cores with Air Gaps by the Multiscale FEM", pp. 1-4, 2022.online
  7. M. Schöbinger, M. T. Bin Tarek, Y. Sozer, I. Tsukerman, K. Hollaus, "Magnetic Microwire Materials Route Magnetic Flux in Screens and Cores of Electrical Machines", pp. 1-4, 2022. online
  8. K. Hollaus, M. Schöbinger, "Multiscale finite element method for perturbation of laminated structures", In ICEAA 2017, pp. 1262-1263. online
  9. M. Schöbinger, K. Hollaus, I. Tsukerman, "Homogenization of laminated magnetic cores and the role of surface charges", In ICEAA 2017, pp. 971-972. online
  10. K. Hollaus, "Multiscale and Harmonic Balance FEM for the Eddy Current Problem in Laminated Iron Cores". In Proc. 17th IEEE CEFC 2016, 13-16 Nov. 2016, Miami, USA. online