Results 21 to 30 of about 77,719 (148)

Towards the selectivity distinction of phenol hydrogenation on noble metal catalysts

Nano Materials Science, 2023
Selective hydrogenation of phenol to cyclohexanone is intriguing in chemical industry. Though a few catalysts with promising performances have been developed in recent years, the basic principle for catalyst design is still missing owing to the unclear ...
Shanjun Mao, Zhe Wang, Zhirong Chen, Kejun Wu, Kaichao Zhang, Qichuan Li, Huihuan Yan, Guofeng Lü, Guodong Huang, Yong Wang   +9 more
doaj   +1 more source

One-bit sensing, discrepancy and Stolarsky's principle

Sbornik: Mathematics, 2017
18 pages.
Bilyk, Dmitry, Lacey, Michael T.
openaire   +3 more sources

Stress analysis of aspherical TRISO-coated particle with X-ray computed tomography

Nuclear Materials and Energy, 2023
The failure probability of TRISO-coated particle is directly dependent on the asphericity and the layer thickness. Local asphericity of the SiC layer will contribute to the concentrated stress region, increasing failure probability of the particle.
Libing Zhu, Xincheng Xiang, Xiangang Wang   +2 more
doaj   +1 more source

Morozov's Discrepancy Principle under General Source Conditions

Zeitschrift für Analysis und ihre Anwendungen, 2003
In this paper we study linear ill-posed problems Ax = y in a Hilbert space setting where instead of exact data y noisy data y^\delta are given satisfying
Nair, M. Thamban, Schock, Eberhard, Tautenhahn, Ulrich   +2 more
openaire   +3 more sources

A discrepancy principle for equations with monotone continuous operators [PDF]

Nonlinear Analysis: Theory, Methods & Applications, 2009
A discrepancy principle for solving nonlinear equations with monotone operators given noisy data is formulated. The existence and uniqueness of the corresponding regularization parameter $a(δ)$ is proved. Convergence of the solution obtained by the discrepancy principle is justified.
Hoang, N. S., Ramm, A. G.
openaire   +2 more sources

Constrained Plug-and-Play Priors for Image Restoration

Journal of Imaging
The Plug-and-Play framework has demonstrated that a denoiser can implicitly serve as the image prior for model-based methods for solving various inverse problems such as image restoration tasks.
Alessandro Benfenati, Pasquale Cascarano
doaj   +1 more source

How to GAN away detector effects

SciPost Physics, 2020
LHC analyses directly comparing data and simulated events bear the danger of using first-principle predictions only as a black-box part of event simulation.
Marco Bellagente, Anja Butter, Gregor Kasieczka, Tilman Plehn, Ramon Winterhalder
doaj   +1 more source

Discrepancy principle for the dynamical systems method [PDF]

Communications in Nonlinear Science and Numerical Simulation, 2005
For the linear ill--posed equation \(Au=f\) with a bounded operator \(A \in L(H)\) and approximately given \(f\) in a Hilbert space \(H\), the author proposes and studies the solution method \({\dot u}=-u+(A^* A+ \epsilon(t))^{-1} A^* f_{\delta}\), \(u(0)=u_0 \in H\).
openaire   +2 more sources

A new discrepancy principle

Journal of Mathematical Analysis and Applications, 2005
The aim of this note is to prove a new discrepancy principle. The advantage of the new discrepancy principle compared with the known one consists of solving a minimization problem approximately, rather than exactly, and in the proof of a stability result.
openaire   +3 more sources

Optimal order yielding discrepancy principle for simplified regularization in Hilbert scales: finite-dimensional realizations

International Journal of Mathematics and Mathematical Sciences, 2004
Simplified regularization using finite-dimensional approximations in the setting of Hilbert scales has been considered for obtaining stable approximate solutions to ill-posed operator equations.
Santhosh George, M. Thamban Nair
doaj   +1 more source