Results 61 to 70 of about 1,807,617 (309)

Use of optical fibre technology to measure structural performance [PDF]

open access: yes, 2015
Structural monitoring using optical fibre technology may be undertaken to establish the long-term behaviour of structures, components and materials of construction. Condition monitoring may be used as an aid to repair and strengthening schedules.
Boswell, Laurie F., McKinley, Brett
core   +2 more sources

Real-Time Failure Prediction of ROADMs by GAN-Enhanced Machine Learning

open access: yesApplied Sciences
We proposed a novel technique for detecting optical filter shift in ROADMs in optical transmission lines by applying machine learning on DP-16QAM constellation data captured just after Analogue-to-Digital Converters (ADCs) in a digital coherent receiver.
Takeshi Naito   +3 more
doaj   +1 more source

In-situ monitoring for CVD processes [PDF]

open access: yes, 2002
Aiming towards process control of industrial high yield/high volume CVD reactors, the potential of optical sensors as a monitoring tool has been explored.
A. Beil   +14 more
core   +3 more sources

Multi-task deep neural network (MT-DNN) enabled optical performance monitoring from directly detected PDM-QAM signals.

open access: yesOptics Express, 2019
We experimentally demonstrate a multi-task deep neutral network (MT-DNN) enabled optical performance monitoring (OPM) for PDM-QPSK/8QAM/16QAM signals, by using the asynchronous amplitude histogram (AAH) after the direct detection.
Yijun Cheng, S. Fu, M. Tang, Deming Liu
semanticscholar   +1 more source

Advanced Distributed Submarine Cable Monitoring and Environmental Sensing using Constant Power Probe Signals and Coherent Detection [PDF]

open access: yesarXiv, 2023
In this work we demonstrate an FPGA-based coherent optical frequency domain reflectometry setup for cable monitoring. Using coherent detection for averaging and narrowband filtering, we significantly improve the signal-to-noise ratio (SNR) compared to traditional intensity-only techniques while also enabling continuous monitoring of phase and ...
arxiv  

BES3 time of flight monitoring system

open access: yes, 2008
A Time of Flight monitoring system has been developed for BES3. The light source is a 442-443 nm laser diode, which is stable and provides a pulse width as narrow as 50 ps and a peak power as large as 2.6 W.
C.P. Shen   +18 more
core   +1 more source

Refining the NaV1.7 pharmacophore of a class of venom‐derived peptide inhibitors via a combination of in silico screening and rational engineering

open access: yesFEBS Letters, EarlyView.
Venom peptides have shown promise in treating pain. Our study uses computer screening to identify a peptide that targets a sodium channel (NaV1.7) linked to chronic pain. We produced the peptide in the laboratory and refined its design, advancing the search for innovative pain therapies.
Gagan Sharma   +8 more
wiley   +1 more source

Optical sensors for power transformer monitoring: A review

open access: yesHigh Voltage, 2021
Power transformers play a vital role in power transmission systems from the energy source to the consumption center. In situ diagnostics of the performance of power transformers provides a variety of benefits to ensure reliable electricity transmission ...
Guoming Ma   +6 more
doaj   +1 more source

Review: optical fiber sensors for civil engineering applications [PDF]

open access: yes, 2013
Optical fiber sensor (OFS) technologies have developed rapidly over the last few decades, and various types of OFS have found practical applications in the field of civil engineering. In this paper, which is resulting from the work of the RILEM technical
B Poumellec   +64 more
core   +1 more source

Feature Fusion-Based Multi-Task ConvNet for Simultaneous Optical Performance Monitoring and Bit-Rate/Modulation Format Identification

open access: yesIEEE Access, 2019
We propose a novel feature fusion based multi-task convolutional neural network (ConvNet) for simultaneous bit-rate and modulation format identification (BR-MFI) and optical performance monitoring (OPM) in heterogeneous fiber-optic networks. The proposed
Xiaojie Fan   +8 more
semanticscholar   +1 more source

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