Results 21 to 30 of about 28,480 (261)

Research on filtering of electromagnetic measurement while drilling signal in underground coal mine

Gong-kuang zidonghua, 2019
In view of problems of slow convergence speed and long computation time existed in electromagnetic wireless measurement while drilling (EM-MWD) signals extracted by adaptive filtering least mean square algorithm and recursive least squares algorithm, a ...
KANG Houqing
doaj   +1 more source

Photonic RF and microwave reconfigurable filters and true time delays based on an integrated optical Kerr frequency comb source

, 2018
We demonstrate advanced transversal radio frequency (RF) and microwave functions based on a Kerr optical comb source generated by an integrated micro-ring resonator.
Chu, Sai T., Little, Brent E., Mitchell, Arnan, Morandotti, Roberto, Moss, David J., Nguyen, Thach G., Shoeiby, Mehrdad, Wu, Jiayang, Xu, Xingyuan   +8 more
core   +1 more source

Asymmetric Turbo Code for Coded-Cooperative Wireless Communication Based on Matched Interleaver with Channel Estimation and Multi-Receive Antennas at the Destination [PDF]

Radioengineering, 2017
This paper investigates the multiple relay coded-cooperation scheme based on asymmetric turbo code (ATC) with multiple receive antennas over Rayleigh block fading channels.
S. Mughal, F. F. Yang, S. Ejaz, S. H. Ahmed, R. Umar   +4 more
doaj  

Integrated Transversal Equalizers in High-Speed Fiber-Optic Systems [PDF]

, 2003
Intersymbol interference (ISI) caused by intermodal dispersion in multimode fibers is the major limiting factor in the achievable data rate or transmission distance in high-speed multimode fiber-optic links for local area networks applications.
Gowda, Sudhir, Hajimiri, Ali, Kash, Jeffrey A., Pepeljugoski, Petar, Schaub, Jeremy, Tierno, Jose A., Wu, Hui   +6 more
core  

High-order Radio Frequency Differentiation via Photonic Signal Processing with an Integrated Micro-resonator Kerr Optical Frequency Comb Source

, 2017
We demonstrate the use of integrated micro-resonator based optical frequency comb sources as the basis for transversal filtering functions for microwave and radio frequency photonic filtering and advanced functions.Comment: 8 pages, 7 figures, 46 ...
Chu, Sai T., Little, Brent E., Mitchell, Arnan, Morandotti, Roberto, Moss, David J., Shoeiby, Mehrdad, Wu, Jiayang, Xu, Xingyuan   +7 more
core   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Tri-/Quad-/Quint-Band Bandpass Filters Based on Transversal Embedded Asymmetrical Square-Ring Resonator

IEEE Access
This paper presents a series design method for tri-/quad-/and quint band bandpass filter (BPF) with multiple transmission zeros (TZs) based on an embedded asymmetrical square-ring resonator (ASRR).
Xiaohan Wan, Zhengzhen Jin, Yifan Wang, Guoxin Xu, Lei Zhang, Yang Xiong, Litian Wang   +6 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Performance Analysis of Microwave Photonic Spectral Filters based on Optical Microcombs

Advanced Physics Research
Microwave transversal filters, which are implemented based on the transversal filter structure in digital signal processing, offer a high reconfigurability for achieving a variety of signal processing functions without changing hardware. When implemented
Yang Li, Yang Sun, Jiayang Wu, Guanghui Ren, Xingyuan Xu, Bill Corcoran, Sai Tak Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell, David J. Moss   +10 more
doaj   +1 more source

INCREASE OF EFFICIENCY OF SUPPRESSION OF THE ACTIVE NOISE JAMMING IN RADAR INTERCEPTION OF AIR TARGETS IN THE REVIEW MODE

Системный анализ и прикладная информатика, 2017
The modified algorithm of the adaptive compensating of the active noise jamming, based on usage of the recurrence estimation of inverse covariance matrix of jamming in the course of an self-tuning is considered.
V. E. Markevich
doaj   +1 more source