Results 71 to 80 of about 505,660 (243)

An Alternative Series Solution for Free Vibration Analysis of Asymmetric L-Shaped Membranes

Applied Sciences
This study revisits the freely vibrating problem of asymmetric L-shaped membranes using a three-segmented domain decomposition (3-SDD) strategy. Motivated by the need for more accurate and flexible methods, the 3-SDD strategy is compared with the ...
Kao-Hao Chang, Wen-Ten Kuo
doaj   +1 more source

A Time-Domain Wavenumber Integration Model for Underwater Acoustics Based on the High-Order Finite Difference Method

Journal of Marine Science and Engineering
Simulating the acoustic field excited by pulse sound sources holds significant practical value in computational ocean acoustics. Two primary methods exist for modeling underwater acoustic propagation in the time domain: the Fourier synthesis technique ...
Xiang Xu, Wei Liu, Guojun Xu
doaj   +1 more source

Preconditioned Dirichlet-Dirichlet Methods for Optimal Control of Elliptic PDE

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
The discretization of optimal control of elliptic partial differential equations problems yields optimality conditions in the form of large sparse linear systems with block structure. Correspondingly, when the solution method is a Dirichlet-Dirichlet non-
Loghin Daniel
doaj   +1 more source

Adaptive Nonlinear Domain Decomposition Methods

, 2021
In this article, different nonlinear domain decomposition methods are applied to nonlinear problems with highly-heterogeneous coefficient functions with jumps. In order to obtain a robust solver with respect to nonlinear as well as linear convergence, adaptive coarse spaces are employed. First, as an example for a nonlinearly left-preconditioned domain
Heinlein, Alexander, Klawonn, Axel, Lanser, Martin   +2 more
openaire   +1 more source

State of the Art in Automated Operational Modal Identification: Algorithms, Applications, and Future Perspectives

Machines
This paper presents a comprehensive review of automated modal identification techniques, focusing on various established and emerging methods, particularly Stochastic Subspace Identification (SSI).
Hasan Mostafaei, Mahdi Ghamami
doaj   +1 more source

A Global-in-time Domain Decomposition Method for the Coupled Nonlinear Stokes and Darcy Flows [PDF]

, 2021
Thi‐Thao‐Phuong Hoang, Hyesuk Lee
openalex   +1 more source

Discussion summary: Fictitious domain methods [PDF]

Fictitious Domain methods are constructed in the following manner: Suppose a partial differential equation is to be solved on an open bounded set, Omega, in 2-D or 3-D. Let R be a rectangle domain containing the closure of Omega. The partial differential
Glowinski, Rowland, Rodrigue, Garry
core   +1 more source

Unsupervised Domain Adaptative SAR Target Detection Based on Feature Decomposition and Uncertainty-Guided Self-Training

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This article proposes an unsupervised domain adaptation (UDA) method by transferring knowledge from rich labeled optical domain to unlabeled synthetic aperture radar (SAR) domain, tackling the issue that current deep-learning-based SAR target detection ...
Yu Shi, Yi Li, Lan Du, Yuang Du, Yuchen Guo   +4 more
doaj   +1 more source

Using Domain Decomposition Method and Non-Matching Grids for Solving Some Variational Inequalities [PDF]

Учёные записки Казанского университета: Серия Физико-математические науки, 2015
Finite difference approximations and iterative solution methods are constructed for a class of variational inequalities with constraints imposed on the solution and a priori known subdomain containing a free boundary.
M.A. Ignatieva, A.V. Lapin
doaj  

A massively parallel multi-level approach to a domain decomposition method for the optical flow estimation with varying illumination [PDF]

, 2016
Diane Gilliocq-Hirtz, Zakaria Belhachmi
openalex   +1 more source