Results 81 to 90 of about 12,040 (299)
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
A modified alternating direction method for convex minimization problems
, 2000 The alternating direction method is an attractive approach for large problems. The convergence proof of the method is based on the exact solutions of the subproblems.
Zhou, Jing, He, Bingsheng
core +1 more source
Learning Deeply Aggregated Alternating Minimization for General Inverse Problems
, 2021 Regularization-based image restoration is one of the most powerful tools in image processing and computer vision thanks to its flexibility for handling various inverse problems. However, designing an optimal regularization function still remains unsolved
민동보
core +1 more source
Robust Phase Retrieval by Alternating Minimization
IEEE Transactions on Signal ProcessingWe consider a least absolute deviation (LAD) approach to the robust phase retrieval problem that aims to recover a signal from its absolute measurements corrupted with sparse noise. To solve the resulting non-convex optimization problem, we propose a robust alternating minimization (Robust-AM) derived as an unconstrained Gauss-Newton method.
Seonho Kim, Kiryung Lee
openaire +2 more sources
An Alternative Method to Crossing Minimization on Hierarchical Graphs [PDF]
SIAM Journal on Optimization, 2001 Summary: A common method for drawing directed graphs is, as a first step, to partition the vertices into a set of \(k\) levels and then, as a second step, to permute the vertices within the levels such that the number of crossings is minimized. We suggest an alternative method for the second step, namely, removing the minimal number of edges such that ...
openaire +5 more sources
A Dislocation Perspective on Strength and Toughness in Ceramics
Advanced Engineering Materials, EarlyView.Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley +1 more source
Phase Retrieval Using Alternating Minimization in a Batch Setting
, 2018 This paper considers the problem of phase retrieval, where the goal is to recover a signal Z ϵ Cn from the observations yi=|ai∗z|, i=1,2,⋯,m. While many algorithms have been proposed, the alternating minimization algorithm has been one of the most ...
Zhang, Teng, Teng Zhang
core +1 more source
Advanced Engineering Materials, EarlyView.Molecular dynamics is used to investigate structure refinement during severe plastic deformation. The results show similitude with experimental data. Molecular dynamics simulations of severe plastic deformation of monocrystalline and polycrystalline samples by multiaxial compression of aluminum are carried out.
Roberto B. Figueiredo
wiley +1 more source
Journal of Applied Mathematics, 2014 Images are often corrupted by impulse noise. In this paper, an alternating direction minimization with continuation algorithm is modified and iteratively used to remove the impulse noise in images by exploring its self-similarity.
Di Guo, Xiaobo Qu, Meng Wu, Keshou Wu
doaj +1 more source
Advanced Engineering Materials, EarlyView.Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş +2 more
wiley +1 more source