Results 131 to 140 of about 5,337,605 (357)

Ultracompact Optical Hybrid Based on Standing Wave Integrated With Graphene-Based Photodetector for Coherent Detection

IEEE Photonics Journal, 2018
In this paper, we propose a novel scheme to integrate an optical hybrid based on standing wave with graphene photodetector (GPD). Different from optical hybrids ba-sed on multimode interference (MMI) couplers, the proposed optical hybrid can be ...
Jing Xu, Yanli Zhao, Ke Wen, Junjie Tu
doaj   +1 more source

Avalanche photodiodes with multiple multiplication layers for coherent detection. [PDF]

Sci Rep, 2022
Ahmad Z, Wang PS, Naseem, Huang YC, Chang YC, Chang YC, Lee YS, Shi JW.   +7 more
europepmc   +1 more source

Integrating Time‐Adjusted Imaging Instability Into Functional Outcome Prediction After Intracerebral Hemorrhage: Development and Validation of the HAGIV Score

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Early risk stratification may support clinical decision‐making in spontaneous intracerebral hemorrhage (ICH). We aimed to develop and internally validate HAGIV, a score integrating frequency of imaging markers (FIM), a time‐adjusted non‐contrast computed tomography (CT) metric of hematoma expansion, with established predictors for 90‐
Lei Song, Ren Ke, Anqi Chen, Yufei Fu, Hang Zhou, Rujia Wang, Liwei Zou, Yongqiang Yu, Ming Yuan, Xiaoming Qiu, Mengzhou Xue   +10 more
wiley   +1 more source

Suppression of stimulated Brillouin scattering in high power fibre lasers and amplifiers

, 2009
Fibre sources in high power devices have significant advantages over conventional gas and solid state lasers. However, for applications that require the so-called singlefrequency sources with narrow linewidths, the output power is low mainly because of ...
Hernandez-Solis, Vladimir
core  

Coherent versus non-coherent decode-and-forward relaying aided cooperative space-time shift keying

, 2011
Motivated by the recent concept of Space-Time Shift Keying (STSK), we propose a novel cooperative STSK family, which is capable of achieving a flexible rate-diversity tradeoff, in the context of cooperative space-time transmissions. More specifically, we
Sheng Chen, Sugiura, Shinya, Grant, Peter M., Shinya Sugiura, Chen, Sheng, Harald Haas, Haas, Harald, Hanzo, Lajos, Lajos Hanzo, Peter M. Grant   +9 more
core   +1 more source

Error-bound formulation for multichannel reception of M-DPSK and pilot-aided M-PSK over Rayleigh-fading channels with postdetection combining [PDF]

, 2004
Upper bounds for symbol-error probability are developed for multichannel reception of M-ary phase-shift keying (M-PSK) over frequency-flat Rayleigh-fading channels.
Chow, YC, McGeehan, JP
core   +1 more source

Coherent detection-based photonic radar for autonomous vehicles under diverse weather conditions. [PDF]

PLoS One, 2021
Chaudhary S, Wuttisittikulkij L, Saadi M, Sharma A, Al Otaibi S, Nebhen J, Rodriguez DZ, Kumar S, Sharma V, Phanomchoeng G, Chancharoen R.   +10 more
europepmc   +1 more source

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

Arthritis Care &Research, EarlyView.
Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian, Chloe Yue, Steve D Levasseur, Hui Xie, J. Antonio Avina‐Zubieta   +4 more
wiley   +1 more source

Correction: Coherent detection-based photonic radar for autonomous vehicles under diverse weather conditions. [PDF]

PLoS One, 2021
PLOS ONE Staff.
europepmc   +1 more source

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

Arthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source