Results 81 to 90 of about 192,036 (316)
Discordance Between Patient and Physician Global Assessments in Early Systemic Sclerosis
Arthritis Care &Research, EarlyView.Objective This study aims to identify factors associated with patient global assessment (PtGA) and physician global assessment (PhGA) and discordance between them in systemic sclerosis (SSc). Methods Data from adults with early SSc (<5 years) from the Collaborative National Quality and Efficacy Registry were included.
Ellen Romich +35 more
wiley +1 more source
IEEE Photonics Journal, 2017 In this paper, the performance of polar code in high-speed coherent optical orthogonal frequency division multiplexing (CO-OFDM) system with nonlinear and linear impairments is comprehensively investigated for the first time.
Ling Liu +5 more
doaj +1 more source
Evaluation of the Scintillation Loss for Optical Communication Systems with Direct Detection
, 2006 In optical communications through the atmosphere, the evaluation of a link feasibility often requires the quantification of the scintillation penalty in terms of power loss. To find how much additional optical power is needed to reach the bit-error-rate (
Perlot, Nicolas
core
Optical techniques for Gbit/s wireless indoor access
, 2014 The capacity and energy consumption bottlenecks faced by Gbit/s indoor wireless communication can be alleviated by a converged indoor fiber backbone network in combination with a picocells architecture, equipped with advanced optical techniques for ...
Koonen, A.M.J.
core +1 more source
Advanced Engineering Materials, EarlyView.This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera +8 more
wiley +1 more source
IEEE Photonics Journal, 2017 In this paper, we propose and experimentally demonstrate an optical self-interference cancellation (OSIC) system with baseband predistortion for wideband over-the-air in-band full-duplex (IBFD) communication.
Yunhao Zhang +5 more
doaj +1 more source
Adaptive modulation schemes for optical wireless communication systems [PDF]
High-speed wireless optical communication links have become more popular for personal mobile applications. This is a consequence of the increasing demand from the personal information service boom.
Zeng, Yu
core
Time-Division Multiplexed Optical Covert Communication System Based on Gain-Switched Optical Pulses
In optical covert communication systems based on gain-switched distributed feedback semiconductor lasers, the trade-off between the modulation frequency and the spectral imperceptibility limits the bit rate of the secure channel.
Yongliang Yin +4 more
core +1 more source
Real-Time Optical Wireless Communication: Field-Trial in an Industrial Production Environment
, 2022 S.69-71We present the first field-trial of a real-time optical wireless communication (OWC) system in an industrial manufacturing environment. Using spatial diversity schemes, we demonstrate how OWC can provide reliable low-latency communication despite ...
Hilt, J. +6 more
core +1 more source