Results 51 to 60 of about 296,485 (288)

Method of Non-Data-Aided Carrier Recovery with Modulation Identification [PDF]

, 2004
A non-data aided carrier recovery technique using digital modulation format identification called multi-mode PLL (Phase Locked Loop) is proposed. This technique can be interpreted as a modulation identification method that is robust against static phase ...
Kohno, Ryuji, Morelos-Zaragoza, Robert H, Umebayashi, Kenta   +2 more
core   +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

Passively mode-locked semiconductor lasers and their applications [PDF]

, 2008
In this paper we present some characterizations of passively mode-locked semiconductor lasers. These lasers are multimode and they exhibit a modulation of their output power even though they are DC-biased.
Landais, Pascal, Latkowski, Sylwester, Surre, Frederic   +2 more
core   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Carrier recovery technique for digital phase-modulated signals

Electronics Letters, 1975
A technique proposed requires the generation of a set of carrier-frequency phase references and auxiliary phase detectors. An n-phase system requires n phase references and n phase detectors. This technique is illustrated by a description of a 4-phase synchronous detector.
openaire   +1 more source

Trade-off between Linewidth and Slip Rate in a Mode-Locked Laser Model

, 2014
We demonstrate a trade-off between linewidth and loss-of-lock frequency in a mode-locked laser employing active feedback to control the carrier-envelope offset phase difference.
Moore, Richard O.
core   +1 more source

A Robust 43-GHz VCO in CMOS for OC-768 SONET Applications [PDF]

, 2004
In this paper, we present a 43-GHz LC-VCO in 0.13-/spl mu/m CMOS for use in SONET OC-768 optical networks. A tuned output buffer is used to provide 1.3 V/sub p-p/ (single-ended) into a 90-fF capacitive load as is required when the VCO is used in typical ...
Boccuzzi, Vito, Frye, Robert C., Gierink, Sander L.J., Gierkink, Sander L.J., Nauta, Bram, van der Wel, A.P.   +5 more
core   +3 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Resolving the phase ambiguities for coherent demodulation of π/4-DEQPSK [PDF]

, 1993
In recovering the carrier signal for coherent demodulation of π/ 4-DEQPSK), there is an inherent phase ambiguity which may significantly degrade the system performance.
Cheung, SW, Vong, CY
core  

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source