Results 21 to 30 of about 58,186 (307)

Novel complex gratings with third-order group-delay variations for tunable pure dispersion slope compensation [PDF]

, 2008
We present a novel tunable dispersion compensator that can provide pure slope compensation. The approach uses two specially designed complex fiber Bragg gratings (FBGs) with reversely varied third-order group delay curves to generate the dispersion slope.
Bennion, Ian, Shu, Xuewen, Turitsyna, Elena, Sugden, Kate   +3 more
core   +1 more source

INFLUENCE OF CHROMATIC DISPERSION, DISPERSION SLOPE, DISPERSION CURVATURE ON MICROWAVE GENERATION USING TWO CASCADE MODULATORS [PDF]

ICTACT Journal on Communication Technology, 2013
This work presents a theoretical study of harmonic generation of microwave signals after detection of a modulated optical carrier in cascaded two electro-optic modulators.
Mandeep Singh, S.K. Raghuwanshi
doaj  

P wave dispersion and maximum P wave duration are associated with renal outcomes in chronic kidney disease. [PDF]

PLoS ONE, 2014
P wave parameters measured by 12-lead electrocardiogram (ECG) are commonly used as a noninvasive tool to evaluate left atrial enlargement. This study was designed to assess whether P wave parameters were associated with renal outcomes in chronic kidney ...
Jiun-Chi Huang, Shu-Yi Wei, Szu-Chia Chen, Jer-Ming Chang, Chi-Chih Hung, Ho-Ming Su, Shang-Jyh Hwang, Hung-Chun Chen   +7 more
doaj   +1 more source

Improvement of a land fragmentation measurement model based on natural surface elements and road network

Frontiers in Environmental Science, 2022
Land fragmentation is one of the most important factors hindering the mechanization and scale of agriculture. To further alleviate the negative impact of arable land fragmentation, a more accurate model for measuring arable land fragmentation is needed ...
Lanlan Su, Yuluan Zhao, Mingshun Long, Xiubin Li   +3 more
doaj   +1 more source

The Impact of Dispersion Slope on Fiber Nonlinearity in Ultra-Wideband Optical Communication System [PDF]

, 2018
We investigate the impact of dispersion slope induced phase-matching on nonlinear noise for wide-bandwidth signals. To ignore the third-order dispersion, its product with 6-times the bandwidth should be less than the second-order dispersion, as for ...
Laperle, C, Ellis, Andrew D., M. Al-Khateeb, Ferreira, Filipe, Charlton, D, F. Ferreira, D. Charlton, A. D. Ellis, Ali, Abdallah, Al-Khateeb, Mohammad, Abdallah A. I. Ali, C. Laperle   +11 more
core   +1 more source

Dispersion controlled highly nonlinear fibers for all optical processing at telecoms wavelengths [PDF]

, 2010
We review our recent progress in the development of lead silicate glass fibers with high nonlinearity and tailored near-zero dispersion at telecommunication wavelengths, encompassing holey, all-solid microstructured and W-type fiber designs.
Shi, Jindan, Ponzo, Giorgio M., David J. Richardson, Horak, Peter, Richardson, David J., Xian Feng, Marco Petrovich, Francesca Parmigiani, Giorgio M. Ponzo, Camerlingo, Angela, Parmigiani, Francesca, Feng, Xian, Periklis Petropoulos, Angela Camerlingo, Jindan Shi, Petropoulos, Periklis, Peter Horak, Petrovich, Marco, Wei H. Loh, Poletti, Francesco, Loh, Wei H., Francesco Poletti   +21 more
core   +1 more source

Wideband Fixed-Beam Single-Piece Leaky Wave Antenna With Controlled Dispersion Slope

, 2023
Leaky wave antennas (LWAs) have been widely investigated for wireless systems because of their simple feed, low profile, and easy integration. They typically have a dispersive traveling wave leading to beam squinting behavior, which can significantly ...
Karmokar, D.K., Li-Zhao Song, Song, L.Z., Chen, SL, Bevan Jones, Jones, B., Karmokar, DK, Shu-Lin Chen, Jones, B, Guo, YJ, Chen, S.L., Guo, Y.J., Debabrata K. Karmokar, Y. Jay Guo, Song, LZ   +14 more
core   +1 more source

A new circular photonic crystal fiber for effective dispersion compensation over E to L wavelength bands

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper presents a new circular photonic crystal fiber (C-PCF) for effective dispersion compensation covering E to L wavelength bands ranging from 1360-1625 nm.
M. M. Haque, M. S. Rahman, M. Samiul Habib, M. Selim Habib, S. M. A. Razzak   +4 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Study on Fire Smoke Distribution Characteristics in Mountain Spiral Highway Tunnels

Applied Sciences
In previous studies on tunnel fires, researchers primarily focus on the impact of a single factor on smoke dispersion characteristics in tunnels, neglecting the combined effects of multiple influencing factors and their mutual interactions.
Yuang Cui, Zhiqiang Liu
doaj   +1 more source