Results 151 to 160 of about 431 (198)

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

Laser &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, Daron Westly, Rahul Shrestha, Khoi Tuan Hoang, Kartik Srinivasan   +4 more
wiley   +1 more source

Room‐Temperature Mid‐Infrared Detection Using Metasurface‐Absorber‐Integrated Phononic Crystal Oscillator

Laser &Photonics Reviews, EarlyView.
Room‐temperature mid‐infrared (MIR) detectors are demonstrated using lithium niobate surface acoustic wave phononic crystal oscillators integrated with metasurface absorbers. The devices exhibit rapid thermal response and simplified fabrication compared to suspended resonators.
Zichen Xi, Zengyu Cen, Dongyao Wang, Joseph G. Thomas, Bernadeta R. Srijanto, Ivan I. Kravchenko, Jiawei Zuo, Honghu Liu, Jun Ji, Yizheng Zhu, Yu Yao, Linbo Shao   +11 more
wiley   +1 more source

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

Laser &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

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

Movement 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, Nicholas K.H. Chiu, Jonathon E. Pye, Maria Comas‐Soberats, Aaron Lam, Ronald R. Grunstein, Simon J.G. Lewis, Elie Matar   +7 more
wiley   +1 more source

A Constitutive Model Allowing for Particle Size‐Shape Coevolution

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This paper presents a constitutive model developed within the Continuum Breakage Mechanics (CBM) framework. The proposed model explicitly accounts for particle shape evolution during the compression of crushable granular materials. Most importantly, the proposed formulation includes a novel expression of the dissipation function that enables a
Divyanshu Lal, Giuseppe Buscarnera
wiley   +1 more source

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

Naval 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

Networks, 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, Sergiy Butenko, Mykyta Makovenko, Petar Momcilovic, Oleg A. Prokopyev   +4 more
wiley   +1 more source

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Dreaming for the World: A Jungian Study of Dreams During the COVID‐19 Pandemic 1

Journal of Analytical Psychology, 2023
This project explores what dreams might reveal about the collective psyche’s response to the COVID‐19 pandemic in its first year, before the development of vaccines.
Ronnie S. Landau, R. Brooke, A. Lampe, Brianna Stich, Nadezhda Semikolwnnykh, N. Serebrennikova   +5 more
semanticscholar   +1 more source

Clinical case of SARS-CoV-2 infection with the development of acute myocardial infarction, myomalacia and hemopericardium

Profilakticheskaya meditsina, 2022
The COVID-19 pandemic has affected hundreds of thousands of people and poses a serious health threat on an international scale. The aim of the work is to present a clinical case of infection with the SARS-CoV-2 virus with the development of acute ...
O. Vorobeva, L. P. Romanova
semanticscholar   +1 more source

Predictors of death within 6 months after non-ST elevation myocardial infarction in post-COVID-19 patients

Profilakticheskaya meditsina, 2022
Objective. To investigate predictors of death within six months of non-ST elevation myocardial infarction (NSTEMI) in postCOVID-19 patients. Material and methods.
M. Chashchin, A. Gorshkov, O. Drapkina
semanticscholar   +1 more source