Results 51 to 60 of about 5,925,887 (294)

Two-Stage n-PSK Partitioning Carrier Phase Recovery Scheme for Circular mQAM Coherent Optical Systems

Photonics, 2016
A novel two-stage n-PSK partitioning carrier phase recovery (CPR) scheme for circular multilevel quadrature amplitude modulation (C-mQAM) constellations is presented.
Jaime Rodrigo Navarro, Aditya Kakkar, Xiaodan Pang, Miguel Iglesias Olmedo, Oskars Ozolins, Francesco Da Ros, Molly Piels, Richard Schatz, Darko Zibar, Gunnar Jacobsen, Sergei Popov   +10 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Analysis of signal processing techniques for optical 112 Gb/s DP-QPSK receivers with experimental data

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper evaluates several signal processing techniques for optical dual-polarization quadrature phase-shift keying (DP-QPSK) coherent receivers, using offline post-processing of experimental data.
Thiago F. Portela, Diego V. Souto, Valery N. Rozental, Hugo B. Ferreira, Darli A. A. Mello, Helmut Griesser   +5 more
doaj   +1 more source

Laser Phase Noise Effects and Joint Carrier Phase Recovery in Coherent Optical Transmissions With Digital Subcarrier Multiplexing

IEEE Photonics Journal, 2017
In this paper, we numerically and experimentally investigate the impairments related to laser phase noise in coherent digital subcarrier multiplexing (SCM) systems.
Meng Qiu, Qunbi Zhuge, Mathieu Chagnon, Fangyuan Zhang, David V. Plant   +4 more
doaj   +1 more source

All-optical carrier phase and polarization recovery for coherent optical communications

, 2007
Polarization insensitive all-optical carrier recovery scheme from BPSK data is proposed and demonstrated in experiment for the first time.
Li, Xiaoxu, Li, Guifang, Kim, Inwoong, Croussore, Kevin, Inwoong Kim, Guifang Li, Xiaoxu Li, Kevin Croussore   +7 more
core   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source

DNA ligase LigE increases bacterial transformation with damaged extracellular DNA

FEBS Letters, EarlyView.
The DNA ligase LigE from the naturally competent Gram‐negative bacterium Neisseria gonorrhoaea increases transformation with cut extracellular DNA. This process is ATP‐dependent and relies on the catalytic activity of LigE; it also requires that LigE contains an intact periplasmic localisation sequence, indicating that ligE functions in the periplasm ...
Jolyn Pan, Avi Singh, Shrawani Weralupe Gamladdalage, Joanna Hicks, Adele Williamson   +4 more
wiley   +1 more source

Perencanaan dan Realisasi Carrier Recovery Pada QPSK [PDF]

, 2008
ABSTRAKSI: Untuk mendapatkan sinyal informasi yang dikirimkan, pada penerima Quadrature Phase Shift Keying (QPSK) digunakan sistem deteksi koheren. Deteksi koheren merupakan proses untuk mengalikan sinyal masukan dengan sebuah gelombang pembawa referensi
Arif Lineker
core  

Multi-Format Carrier Phase Recovery Using a Programmable Circuit [Elektronisk resurs]

, 2021
We introduce an application-specific circuit that can be programmed to efficiently perform blind carrier phase recovery for different modulation formats.
Larsson-Edefors, Per,, Börjeson, Erik,
core  

Haploidentical Hematopoietic Cell Transplantation for Infants With X‐Linked Severe Combined Immunodeficiency Using Post‐Transplant Cyclophosphamide

Pediatric Blood &Cancer, EarlyView.
Shuhei Takahashi, Akito Kawachi, Dan Tomomasa, Eri Watanabe, Yuji Fujita, Yuya Sato, Masahiro Sekiguchi, Kentaro Watanabe, Moe Hidaka, Akihiro Hoshino, Takahiro Kamiya, Masatoshi Takagi, Hirokazu Kanegane, Motohiro Kato   +13 more
wiley   +1 more source