Results 61 to 70 of about 208,745 (278)

A Fast Iterative Shrinkage/Thresholding Algorithm via Laplace Norm for Sound Source Identification

open access: yesIEEE Access, 2020
As a powerful tool, near-field acoustical holography (NAH) recognizes the sound source effectively. The traditional equivalent source method (ESM) calculated by the Tikhonov regularization method could be available in the low-frequency band.
Linsen Huang   +4 more
doaj   +1 more source

Tikhonov type regularization for unbounded operators

open access: yesRatio Mathematica, 2021
In this paper, we introduce a Tikhonov type regularization method for an ill-posed operator equation T x = y, where T is a closed densely defined unbounded operator on a Hilbert space H.
E Shine Lal, P Ramya
doaj   +1 more source

Multi-parameter Tikhonov regularization — An augmented approach [PDF]

open access: yesChinese Annals of Mathematics, Series B, 2014
14 pages, to appear in Chinese Annals of Mathematics, Series B, special issue for International Conference on Inverse Problems and Related ...
Ito, Kazufumi   +2 more
openaire   +3 more sources

Tailor‐Made Protective LixAlSy Layer for Lithium Anodes to Enhance the Stability of Solid‐State Lithium–Sulfur Batteries

open access: yesAdvanced Materials Interfaces, EarlyView.
An intentionally added, chemically formed LixAlSy coating stabilizes the lithium–electrolyte interface in solid‐state Li–S batteries. The layer suppresses side reactions, preserves smooth charge transfer, and improves ion transport from the start. This approach offers a practical route to more durable solid‐state batteries and a clearer understanding ...
Xinyi Wang   +4 more
wiley   +1 more source

The Tikhonov Regularization Method for Set-Valued Variational Inequalities

open access: yesAbstract and Applied Analysis, 2012
This paper aims to establish the Tikhonov regularization theory for set-valued variational inequalities. For this purpose, we firstly prove a very general existence result for set-valued variational inequalities, provided that the mapping involved has ...
Yiran He
doaj   +1 more source

A new Tikhonov regularization method [PDF]

open access: yesNumerical Algorithms, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fuhry, Martin, Reichel, Lothar
openaire   +2 more sources

Sleep Alters the Velocity of Physiological Brain Pulsations in Humans

open access: yesAdvanced Science, EarlyView.
Sleep alters I/CSF oscillatory flow, driven by increased respiratory (29%) and vasomotor pulsation (21%) velocities, while cardiovascular pulsations decreased by (22%). Velocity is quantified using optical flow analysis of MREG data. Spectral power increases alongside these pulsations (spatial correlation, r = 0.35 and r = 0.39, respectively ...
Ahmed Elabasy   +13 more
wiley   +1 more source

Two regularization methods for identifying the unknown source term of space-time fractional diffusion-wave equation

open access: yesAIMS Mathematics
In this paper, the inverse problem of identifying the unknown source for the space-time fractional diffusion-wave equation is researched. This problem is ill-posed and needs the regularization approach to solve this inverse problem.
Huimin Heng   +3 more
doaj   +1 more source

Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI

open access: yesAdvanced Science, EarlyView.
ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Pablo Arratia   +7 more
wiley   +1 more source

A GCV based Arnoldi-Tikhonov regularization method

open access: yes, 2013
For the solution of linear discrete ill-posed problems, in this paper we consider the Arnoldi-Tikhonov method coupled with the Generalized Cross Validation for the computation of the regularization parameter at each iteration.
Novati, Paolo, Russo, Maria Rosaria
core   +1 more source

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