... material properties using reference and simulation data. Design/methodology/approach The general methodology combines methods based on measurement, numerical simulation and solving an inverse problem. Therefore, a sensor-actuator system is used to characterize electrical steel sheets locally. Based...

... on the electrode surface by the secant method (Janischewskyj and Gela, 1979 ; Khaddour et al., 2008 , 2006). Different from the nest-loop algorithm, the ion flow field problem is transformed into an inverse problem and a novel solving framework is proposed based on the regularization technique...

...Piergiorgio Alotto; Paolo Di Barba; Alessandro Formisano; Gabriele Maria Lozito; Raffaele Martone; Maria Evelina Mognaschi; Maurizio Repetto; Alessandro Salvini; Antonio Savini Purpose Inverse problems in electromagnetism, namely, the recovery of sources (currents or charges) or system data from...

... ; Li et al., 2019; Lopato et al., 2013 ; Mazurkiewicz and Valis, 2018 ; Psuj, 2018 ; Szczesny and Korzeniewska, 2018 ; Vališ and Mazurkiewicz, 2018), but mainly deterministic methods are used to solve the inverse problem in tomography (Rymarczyk et al., 2019...

.... In numerical linear algebra, the Moore-Penrose inverse is commonly applied to compute a least squares solution to an inverse problem that lacks a unique solution (Chen and Feng, 2014 ; Yongxin et al., 2012). The most natural application of the Moore-Penrose PI is to solve linear systems...

... at: ipetraso@kte.zcu.cz 31 05 2019 21 10 2019 30 10 2019 © Emerald Publishing Limited 2019 Emerald Publishing Limited Licensed re-use rights only Inverse problems Optimal control Finite element method Partial differential equations Design optimization methodology...

... distribution. For sampling the Metropolis Hastings (MH) Algorithm and the Gibbs sampler are used. Efficient proposal generation techniques and techniques for conditional sampling are proposed and evaluated for an exemplary inverse problem. Findings For the MH-algorithm, high acceptance rates can...

... of the associated method is validated, then the results of the TO design are presented and discussed. Inverse problems Optimal design Topology optimization Design optimization methodology Continuum sensitivity analysis Electromagnetic inverse problem Electric propulsion is increasingly adopted...

...Jinlong Dong; Luca Di Rienzo; Olivier Chadebec; Jianhua Wang Purpose This paper aims to present the mathematical formulations of a magnetic inverse problem for the electric arc current density reconstruction in a simplified arc chamber of a low-voltage circuit breaker. Design/methodology...

... 09 12 2018 © Emerald Publishing Limited 2019 Emerald Publishing Limited Licensed re-use rights only Inverse problems Sensors Sensitivity analysis Design optimization methodology Optically pumped magnetometers (OPMs) are a relatively new sensor technology for applications...

.... The application of modern tomographic techniques in conjunction with topological algorithms will allow one to perform very accurate spatial assessment of the dampness levels of buildings. The proposed application uses the total variation, Gauss–Newton and level set method to solve the inverse problem...

... and by subsequently solving the associated linear inverse problem. The purpose of this study is to improve the accuracy of the computation of the forward problem, since the forward solution primarily determines the accuracy of the inversion. Design/methodology/approach The tomography procedure is described...

... of the estimates. Research limitations/implications Logarithmic conductivity provides an advantageous description of the solution space for the EIT inverse problem. Similar estimation problems might be subject to analogous conclusions. Originality/value This study provides a novel analysis, quantitatively...

...Shafiullah Khan; Shiyou Yang; Obaid Ur Rehman Purpose The aim of this paper is to explore the potential of particle swarm optimization (PSO) algorithm to solve an electromagnetic inverse problem. Design/methodology/approach A modified PSO algorithm is designed. Findings The modified PSO...

...Markus Neumayer; Thomas Bretterklieber; Matthias Flatscher; Stefan Puttinger Purpose Inverse problems are often marked by highly dimensional state vectors. The high dimension affects the quality of the estimation result as well as the computational complexity of the estimation problem. This paper...

... the inverse problem derived from the law of Biot-Savart. In general the spatial current density distribution and the magnetic field are linked by the law of Biot-Savart (Jackson, 1998): (Equation 2) where (x, y, z) – coordinates of an arbitrary point in space; (x′, y...

... in the material properties of the liquid: liquid_epsr×χ(x, y, z). Bartosz Chaber can be contacted at: bartosz.chaber@ee.pw.edu.pl © Emerald Group Publishing Limited 2016 Finite element simulation Inverse problems Electromagnetism Radio frequency Breast cancer Microwave...

..., and by magnetostatic laws, in integral form if using (1). The formalism used in (2) could also fit local form, but in this case boundary conditions must be included. Professor Raffaele Martone can be contacted at: martone@unina.it © Emerald Group Publishing Limited 2015 Inverse problems...

... magnetic Reynolds numbers (0.1-1). This facilitates the possibility to detect subsurface defects in conductive materials. © Emerald Group Publishing Limited 2014 Finite element simulation Inverse problems Non-destructive testing Eddy currents Permanent magnets Lorentz force Non...

...Professor Luc Dupré and Dr Guillaume Crevecoeur; Ahmed Abou-Elyazied Abdallh; Luc Dupré Purpose – Magnetic material properties of an electromagnetic device (EMD) can be recovered by solving a coupled experimental numerical inverse problem. In order to ensure the highest possible accuracy...