Results 71 to 80 of about 2,790,274 (339)

Optical Vortex-Enhanced LIBS: Signal Improvement and Precise Classification of Coal Properties with Machine Learning

Applied Sciences
Laser-induced breakdown spectroscopy (LIBS), limited by matrix effects, self-absorption in complex samples, and ambient atmospheric influences, still requires further improvement in detection sensitivity and signal stability. In this work, the excitation
Yuxia Zhou, Abulimiti Yasen, Jianqiang Ye, Palidan Aierken, Bumaliya Abulimiti, Mei Xiang   +5 more
doaj   +1 more source

Optical Rankine Vortex

, 2007
10 pages, 5 figures,
Swartzlander, Jr., Grover A., Hernandez-Aranda, Raul I.   +1 more
openaire   +2 more sources

Optical Rogue Waves in Vortex Turbulence [PDF]

Physical Review Letters, 2016
5 pages, 7 ...
Gibson, Christopher J., Yao, Alison M., Oppo, Gian-Luca   +2 more
openaire   +4 more sources

Lesion Location and Functional Connections Reveal Cognitive Impairment Networks in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive impairment, fatigue, and depression are common in multiple sclerosis (MS), potentially due to disruption of regional functional connectivity caused by white matter (WM) lesions. We explored whether WM lesions functionally connected to specific brain regions contribute to these MS‐related manifestations.
Alessandro Franceschini, Paolo Preziosa, Paola Valsasina, Damiano Mistri, Monica Margoni, Federica Esposito, Massimo Filippi, Maria A. Rocca   +7 more
wiley   +1 more source

Integrated Compact Optical Vortex Beam Emitters [PDF]

Science, 2012
A Twist of Light The angular momentum of photons can be used to encode and transmit information. Cai et al. (p. 363 ) developed a method for generating and emitting controllable orbital angular momentum states of light from a reconfigurable ...
Cai, Xinlun, Wang, Jianwei, Strain, Michael J., Johnson-Morris, Benjamin, Zhu, Jiangbo, Sorel, Marc, O'Brien, Jeremy L., Thompson, Mark G., Yu, Siyuan   +8 more
openaire   +4 more sources

Deep Learning–Assisted Differentiation of Four Peripheral Neuropathies Using Corneal Confocal Microscopy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Peripheral neuropathies contribute to patient disability but may be diagnosed late or missed altogether due to late referral, limitation of current diagnostic methods and lack of specialized testing facilities. To address this clinical gap, we developed NeuropathAI, an interpretable deep learning–based multiclass classification ...
Chaima Ben Rabah, Ioannis N. Petropoulos, Mark Stettner, Maryam Ferdousi, Uazman Alam, Nathan Efron, Ahmed Serag, Rayaz A. Malik   +7 more
wiley   +1 more source

Direction of energy flows at the focus of cylindrical vortex vector beams

Компьютерная оптика
In this work, we show analytically using the Richards-Wolf formalism and through the numerical simulation that at the sharp focus of a circularly polarized optical vortex, three energy flows occur: the direct longitudinal, reverse longitudinal, and ...
V.V. Kotlyar, A.A. Kovalev, A.G. Nalimov, A.M. Telegin   +3 more
doaj   +1 more source

Prediction of Myasthenia Gravis Worsening: A Machine Learning Algorithm Using Wearables and Patient‐Reported Measures

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Myasthenia gravis (MG) is a rare disorder characterized by fluctuating muscle weakness with potential life‐threatening crises. Timely interventions may be delayed by limited access to care and fragmented documentation. Our objective was to develop predictive algorithms for MG deterioration using multimodal telemedicine data ...
Maike Stein, Haoqi Sun, Sophie Lehnerer, Lea Gerischer, Maximilian Mönch, Christian Meisel, Andreas Meisel, Pushpa Narayanaswami   +7 more
wiley   +1 more source

Ring-broken optical vortices with an adjustable opening

Results in Physics, 2019
A modified helical phase is presented in this paper. The generated vortex beams with the modified helical phases are characterized with ring-broken intensity distributions.
Shubo Cheng, Tian Xia, Mengsi Liu, Yiping Xu, Shan Xu, Shufang Gao, Geng Zhang, Shaohua Tao, Wenxing Yang   +8 more
doaj   +1 more source

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu, Yuxi Gong, Weilin Xu, Xingjian Sun, Gefei Jiang, Lei Qiu, Kexin Shi, Mengxing Wu, Yinjiao Fei, Jinling Yuan, Jinyan Luo, Yurong Li, Yuandong Cao, Minhong Pan, Shu Zhou   +14 more
wiley   +1 more source