Results 101 to 110 of about 49,278 (223)

Properties, mechanisms, and perspectives of ultrafast laser modifications in silicate glass volume

open access: yesInternational Journal of Applied Glass Science, EarlyView.
Abstract Ultrafast laser irradiation of glass enables highly localized structural transformations within the material's bulk, unlocking diverse applications in photonics, data storage, and microfabrication. Here, we provide a concise yet comprehensive overview of the main types of femtosecond laser‐induced modifications in silica‐based glasses (Types I,
Nadezhda Shchedrina   +3 more
wiley   +1 more source

Poisson count time series

open access: yesJournal of Time Series Analysis, EarlyView.
This article reviews and compares popular methods, some old and some recent, that produce time series having Poisson marginal distributions. The article begins by narrating ways where time series with Poisson marginal distributions can be produced.
Jiajie Kong, Robert Lund
wiley   +1 more source

Open and closed complexity of infinite words

open access: yes, 2020
In this paper we study the asymptotic behaviour of two relatively new complexity functions defined on infinite words and their relationship to periodicity.
Parshina, O., Postic, M.
core  

Markov Determinantal Point Process for Dynamic Random Sets

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT The Law of Determinantal Point Process (LDPP) is a flexible parametric family of distributions over random sets defined on a finite state space, or equivalently over multivariate binary variables. The aim of this paper is to introduce Markov processes of random sets within the LDPP framework. We show that, when the pairwise distribution of two
Christian Gouriéroux, Yang Lu
wiley   +1 more source

Truncated Floquet–Bloch transform for computing the spectral properties of large finite systems of resonators

open access: yesTransactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract In subwavelength physics, a challenging problem is to characterise the spectral properties of finite systems of subwavelength resonators. In particular, it is important to identify localised modes as well as bandgaps and associated mobility edges.
Habib Ammari   +2 more
wiley   +1 more source

A Nordhaus–Gaddum Problem for the Spectral Gap of a Graph

open access: yesJournal of Graph Theory, Volume 110, Issue 2, Page 132-144, October 2025.
ABSTRACT Let G be a graph on n vertices, with complement G ¯. The spectral gap of the transition probability matrix of a random walk on G is used to estimate how fast the random walk becomes stationary. We prove that the larger spectral gap of G and G ¯ is Ω ( 1 ∕ n ).
Sooyeong Kim, Neal Madras
wiley   +1 more source

Comparison of Interlimb Coordination During Soccer Instep Kicking Between Elite and Amateur Players

open access: yesEuropean Journal of Sport Science, Volume 25, Issue 9, September 2025.
ABSTRACT This study investigates how interlimb joint coordination influences foot speed during soccer instep kicking, using continuous relative phase (CRP) as a quantitative method. The sample includes 15 elite and 15 amateur players to examine potential differences in coordination patterns and their impact on performance.
Zhanyi Zhou   +6 more
wiley   +1 more source

Leader-following consensus of second-order multi-agent systems with switching topology and partial aperiodic sampled data

open access: green, 2021
Syed Ali Ajwad   +4 more
openalex   +2 more sources

Molecular Dynamics Study on Quartz‐Indenter Shape and Depth Effects in Epoxy Interfacial Mechanics

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 13, Page 2949-2964, September 2025.
ABSTRACT The interfacial mechanical behavior between epoxy and quartz at the microscale remains inadequately understood. The quartz‐indenter shape and indentation depth (hc) effect on epoxy interfacial mechanical behavior has been investigated through molecular dynamics (MD) simulation of nanoindentation and nanoscratching.
Pengchang Wei   +3 more
wiley   +1 more source

Multifrequency Time‐Dependent Deep Image Prior for Real‐Time Free‐Breathing Cardiac Imaging

open access: yesNMR in Biomedicine, Volume 38, Issue 9, September 2025.
This study introduces a Multifrequency Time‐Dependent Deep Image Prior reconstruction that combines a multifrequency manifold, comprised of multiple sinusoids spanning a range of frequencies, with zero‐shot deep learning. Real‐time free‐breathing cardiac imaging with a temporal resolution as high as a single TR is demonstrated in healthy subjects and ...
Jesse I. Hamilton   +5 more
wiley   +1 more source

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