Results 71 to 80 of about 1,847,375 (374)

Panoramic optical and near-infrared SETI instrument: optical and structural design concepts [PDF]

, 2018
We propose a novel instrument design to greatly expand the current optical and near-infrared SETI search parameter space by monitoring the entire observable sky during all observable time.
Ackermann, Angel, Bunner, Chambers, Davis, Davis, Ellingson, Fujii, Howard, Law, Maire, Maire, Mészáros, Oosterloo, Petigura, Wright, Wright   +16 more
core   +2 more sources

Experimental demonstration of adaptive digital monitoring and compensation of chromatic dispersion for coherent DP-QPSK receiver [PDF]

, 2011
We experimentally demonstrate a digital signal processing (DSP)-based optical performance monitoring (OPM) algorithm for inservice monitoring of chromatic dispersion (CD) in coherent transport networks.
Darko Zibar, Idelfonso Tafur Monroy, Kuschnerov, Richard Younce, Robert Borkowski, Savory, Spinnler, Wang, Xu Zhang   +8 more
core   +1 more source

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

Applied 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, Shota Nishijima, Yuichiro Nishikawa, Akira Hirano   +3 more
doaj   +1 more source

Reliable Optical Performance Monitor: The Combination of Parallel Framework and Skip Connected Generative Adversarial Network

IEEE Access, 2020
Future optical network is developing towards highly heterogeneity and flexibility, which means that the various signals will be transmitted in the network and the optical performance monitor is more likely to encounter the signal beyond its monitoring ...
Xiaojie Fan, Fang Ren, Jingyu Zhang, Yiying Zhang, Jingjing Niu, Jianping Wang   +5 more
doaj   +1 more source

BES3 time of flight monitoring system

, 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, C.Q. Feng, F.A. Harris, G.S. Varner, Harris, J.W. Kennedy, K.J. Zhu, Kishida, L. Nguyen, Li, M. Rosen, Q. An, Q. Liu, S.B. Liu, S.L. Olsen, Wang, Wu, Y.K. Heng, Z.J. Sun   +18 more
core   +1 more source

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

arXiv, 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  

Identification of novel small molecule inhibitors of ETS transcription factors

FEBS Letters, EarlyView.
ETS transcription factors play an essential role in tumourigenesis and are indispensable for sprouting angiogenesis, a hallmark of cancer, which fuels tumour expansion and dissemination. Thus, targeting ETS transcription factor function could represent an effective, multifaceted strategy to block tumour growth. The evolutionarily conserved E‐Twenty‐Six
Shaima Abdalla, Zary Forghany, Jin Ma, Johan G. Hollander, Ruta Nachane, Karoly Szuhai, Pancras C. W. Hogendoorn, Peter ten Dijke, Dipen Shah, David A. Baker   +9 more
wiley   +1 more source

Performance monitoring in transparent optical networks using self-monitoring optical-labels

Electronics Letters, 2004
A novel optical layer performance monitoring method in transparent optical-label switching networks is presented. It is based on the signal quality correlation between the data payload and the label, which allows monitoring of the data payload signal quality by monitoring the label bit error rates. Experimental results indicate effective estimations of
Min Yong Jeon, Jinqiang Yang, Jing Cao, Zhong Pan, S.J.B. Yoo   +4 more
openaire   +2 more sources

Joint Optical Performance Monitoring and Modulation Format/Bit-Rate Identification by CNN-Based Multi-Task Learning

IEEE Photonics Journal, 2018
A novel technique is proposed for joint multi-impairment optical performance monitoring (OPM) with bit-rate and modulation format identification (BR-MFI) in next-generation heterogeneous optic communication networks by convolution neural network (CNN ...
Xiaojie Fan, Yulai Xie, F. Ren, Yiying Zhang, Xiaoshan Huang, Wei Chen, T. Zhangsun, Jianping Wang   +7 more
semanticscholar   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

FEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke, Izadora Volpato Rossi, Marcel I. Ramirez   +2 more
wiley   +1 more source