Results 131 to 140 of about 24,793 (234)
Narrower eigenbounds for Hadamard products
Linear Algebra and its Applications, 1997 The author considers the Hadamard product of two positive semidefinite matrices of order \(n\). An ``augmented'' Schur theorem is proved which yields a specific bound for each eigenvalue of the Hadamard product. The result improves the classical global bounds by \textit{I.
openaire +1 more source
Approach for Damage‐Free Disassembly of Highly Stressed CFRP Structures
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.ABSTRACT In today's pursuit of sustainability, the aviation industry faces challenges in reusing materials and structural components made from carbon fiber‐reinforced polymer (CFRP). Conventional downcycling methods degrade CFRP's structural integrity by cutting load‐bearing fibers and embedding them in new matrices, reducing performance.
Janko Kreikemeier +3 more
wiley +1 more source
, 2012 We study the way the unitary evolution of spin 1/2 particules can be represented in a counterfactual definiteness setting. More precisely, by representing the state of such a particule by a triplet of values corresponding to the supposedly pre-existing ...
Brunet, Olivier
core +1 more source
How Regulation and Global Standing Shape Stock Market Co‐Movements: A G20 Panel Study
International Review of Finance, Volume 26, Issue 2, June 2026.ABSTRACT Motivated by post‐2020 fragmentation and underexplored institutional‐geopolitical drivers, we examine how regulatory quality (RQ) and global power (GP) shape stock‐market co‐movements across 17 G20 economies. We estimate time‐varying correlations via ADCC‐GARCH, construct a scaled correlation index, and apply panel ARDL. We find that higher RQ
Sama Haddad +4 more
wiley +1 more source
Unveil Fundamental Graph Properties for Neural Architecture Search
Advanced Science, Volume 13, Issue 25, 4 May 2026.This paper proposes NASGraph, a graph‐based framework that represents neural architectures as graphs whose structural properties determine performance. By revealing structure–performance relationships, NASGraph enables efficient neural architecture search with significantly reduced computation.
Zhenhan Huang +4 more
wiley +1 more source
AIChE Journal, Volume 72, Issue 5, May 2026.Abstract Three instruments–Raman spectroscopy, attenuated total reflectance–Fourier transform infrared spectroscopy, and focused beam reflectance measurement–were used to detect sensor faults, mixing faults, and unanticipated chemistry in a system of multicomponent slurries.
Steven H. Crouse +2 more
wiley +1 more source
Health Science Reports, Volume 9, Issue 5, May 2026.ABSTRACT Background and Aims Rising quantum hazards and flaws in conventional encryption make cloud‐based healthcare data security harder. Quantum‐Secure HealthChain, a new architecture using blockchain and quantum computing, improves medical data security, patient privacy, and data fidelity. Methods To prevent quantum attacks, the proposed system uses
Rajesh Bose +6 more
wiley +1 more source
On Regular Quaternary Hadamard Matrices
Journal of Combinatorial Designs, Volume 34, Issue 5, Page 215-227, May 2026.ABSTRACT Through the use of regularizing vectors, all regular quaternary Hadamard matrices of orders 10 and 18 have been successfully identified. Of these, two matrices of order 10 and 184 matrices of order 18 were found to have unbiased mates. Converting the quaternary Hadamard matrices of order 18 to real Hadamard matrices, the study uncovered that ...
Hadi Kharaghani +2 more
wiley +1 more source
Protein Science, Volume 35, Issue 5, May 2026.Abstract Duplication is an essential mechanism of molecular evolution, which operates across biological scales, from whole genomes to single basepairs. Its study is central to understanding protein evolution, but the detection of duplication events often becomes challenging over evolutionary time, due to the accumulating sequence divergence.
Kaiyu Qiu +2 more
wiley +1 more source
Statistics in Medicine, Volume 45, Issue 10-12, May 2026.ABSTRACT In cluster randomized trials with longitudinal measurements (CRTLMs), clusters of subjects, rather than individual subjects, are randomly assigned to either control or intervention groups. Measurements are collected from these subjects repeatedly at prespecified times until the end of the study.
Jijia Wang, Song Zhang, Chul Ahn
wiley +1 more source