Results 41 to 50 of about 401,588 (285)
Finite element approximation of source term identification with TV-regularization
, 2019 In this paper we investigate the problem of recovering the source term in an elliptic system from a measurement of the state on a part of the boundary.
Hinze, Michael, Quyen, Tran Nhan Tam
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Applied Sciences, 2023 Numerical methods, such as finite element or finite difference, have been widely used in the past decades for modeling solid mechanics problems by solving partial differential equations (PDEs).
Yawen Deng +5 more
doaj +1 more source
Inverse estimates for elliptic boundary integral operators and their application to the adaptive coupling of FEM and BEM [PDF]
, 2012 We prove inverse-type estimates for the four classical boundary integral operators associated with the Laplace operator. These estimates are used to show convergence of an h-adaptive algorithm for the coupling of a finite element method with a boundary ...
Aurada, Markus +5 more
core
, 2014 We consider the inverse problem of the simultaneous reconstruction of the dielectric permittivity and magnetic permeability functions of the Maxwell's system in 3D with limited boundary observations of the electric field.
Beilina, Larisa +2 more
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A stabilized finite element method for inverse problems subject to the convection-diffusion equation. I: diffusion-dominated regime [PDF]
, 2019 The numerical approximation of an inverse problem subject to the convection--diffusion equation when diffusion dominates is studied. We derive Carleman estimates that are on a form suitable for use in numerical analysis and with explicit dependence on ...
Burman, Erik +2 more
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International Journal of Adaptive Control and Signal Processing, EarlyView.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley +1 more source
Heat Flux Identification at the Charge Surface During Heating in Chamber Furnace
Archives of Metallurgy and Materials, 2016 In this study, a method of determining the heat flux, which reaches the surface of a charge, has been presented with the use of an inverse analysis. The research on the heating process of a square 15HM steel charge was conducted in a natural gas-fired ...
Gołdasz A., Malinowski Z.
doaj +1 more source
Modelling of SFRC using inverse finite element analysis
, 2006 A method of inverse finite element analysis is used to determine the constitutive relationship of SFRC in tension, using primary experimental data. Based on beam bending test results and results from pull-out tests, an attempt is made to explain the ...
Neocleous, K. +2 more
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International Journal of Adaptive Control and Signal Processing, EarlyView.This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley +1 more source
Quasi-static Free-Boundary Equilibrium of Toroidal Plasma with CEDRES++: Computational Methods and Applications [PDF]
, 2015 International audienceWe present a comprehensive survey of the various computational methods in CEDRES++ for finding equilibria of toroidal plasma.
Ané, Jean-Marc +9 more
core +5 more sources