Results 121 to 130 of about 155 (153)

Broadband Visible Wavelength Microcomb Generation In Silicon Nitride Microrings Through Air‐Clad Dispersion Engineering

open access: yesLaser &Photonics Reviews, EarlyView.
Air‐clad silicon nitride microring resonators enable visible microcomb generation in wavelength regions where oxide‐clad structures cannot achieve anomalous dispersion. Despite lower quality factors, enhanced nonlinearity from tighter mode confinement allows comb generation at standard pump powers (150 mW).
Grégory Moille   +4 more
wiley   +1 more source

Combs, Fast and Slow: Non‐Adiabatic Mean‐Field Theory of Active Cavities

open access: yesLaser &Photonics Reviews, EarlyView.
A unified mean‐field theory is developed that describes active cavities with dynamics of any speed, whether they be fast, slow, or anything in between. By creating an operator‐based framework that makes no adiabatic approximation, this approach delivers more efficient simulations and new analytical insights for a wide range of integrated combs, such as
David Burghoff
wiley   +1 more source

Expandable Microspheres Transform 2D Electrospun Mats Into 3D Composite Scaffolds

open access: yesMacromolecular Rapid Communications, EarlyView.
This study presents the transformation of two‐dimensinoal nanofiber mats into three‐dimensional microsphere‐nanofiber composite scaffolds using the thermal expansion of embedded expandable microspheres. The resulting scaffolds, with customizable compositions and fiber alignments, hold significant promise for applications in environmental, energy, and ...
Huy Quang Tran, Jingwei Xie
wiley   +1 more source

Rest–Activity Disturbances Correlate with Core Features in Dementia with Lewy Bodies

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Sleep–wake disturbances are a clinically important and poorly studied feature of dementia with Lewy bodies (DLB) due to the challenges of in‐laboratory polysomnography in this population. Objectives To compare rest–activity rhythms in DLB, Parkinson's disease (PD), and age‐matched controls using home‐based wrist actigraphy and ...
Jack Anderson   +7 more
wiley   +1 more source

Inspection Game With Imperfect Detection Technology

open access: yesNaval Research Logistics (NRL), EarlyView.
ABSTRACT In this article, we investigate a generalized two‐player inspection game between an attacker and a defender who allocates multiple resources across a critical system. Specifically, the attacker targets components of the system while the defender coordinates multiple inspection units to monitor disjoint subsets of components and detect attacks.
J. Haden Boone, Mathieu Dahan
wiley   +1 more source

Data‐Driven Ranking and Selection With Simultaneous Input Data Collection and Simulation

open access: yesNaval Research Logistics (NRL), EarlyView.
ABSTRACT In this paper, we propose a general and novel formulation of ranking and selection with the existence of streaming input data. The collection of multiple streams of such data may consume different types of resources, and hence can be conducted simultaneously.
Yuhao Wang, Enlu Zhou
wiley   +1 more source

An Implicit Enumeration Approach for Maximum Ratio Clique Relaxations

open access: yesNetworks, EarlyView.
ABSTRACT This article proposes an implicit enumeration approach to solve the maximum ratio s$$ s $$‐plex and the maximum ratio s$$ s $$‐defective clique problems. The approach is inspired by the classical Bron‐Kerbosch algorithm for enumerating all maximal cliques in a graph, which is extended to enumerating structures that are hereditary on induced ...
Yehor Blokhin   +4 more
wiley   +1 more source

A fisher's perspective: Using half a century of local fisher knowledge to identify socio‐economic, ecological and legislative trends influencing angelshark (Squatina squatina) records in Wales

open access: yesPeople and Nature, EarlyView.
Abstract The evolution of marine fisheries has broadly influenced the ecology, distribution and abundance of coastal elasmobranchs. However, quantifying these interactions remains a challenge due to the scarcity of historical records. Fishers' local ecological knowledge (LEK) is an essential tool in fisheries research, providing an avenue to regain ...
Francesca C. Mason   +17 more
wiley   +1 more source

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