Results 21 to 30 of about 1,372,731 (292)

Partial stability of induced entanglement in an off-resonance qutrit-cavity system with nonlinear coupling and intrinsic decoherence

open access: yesAlexandria Engineering Journal, 2022
In this article, we introduce an analytical description for the nonlinear off-resonance qutrit-cavity system through intensity-dependent nonlinear coupling under intrinsic decoherence.
A.-B.A. Mohamed   +2 more
doaj   +1 more source

System Level Extropy of the Past Life of a Coherent System

open access: yesJournal of Mathematics, 2023
In this paper, we take a new approach to uncertainty in a coherent system, where components are assumed to be all inactive in a given time. In particular, the signature-based method is used to quantify the extropy of the past lifetime of the system ...
M. Kayid, Mashael A. Alshehri
doaj   +1 more source

DNA and nanophotonics: original methodological approach

open access: yesNanotechnology Reviews, 2014
The aim of the present work is a spectroscopic and thermodynamic study of DNA catalytic properties in the following processes: a) redox; b) formation of interstrand crosslinks; c) performing of photodynamic effects; d) nanoscale resonance radiationless ...
Bregadze Vasil G.   +2 more
doaj   +1 more source

Data-Aided OSNR Estimation for QPSK and 16-QAM Coherent Optical System

open access: yesIEEE Photonics Journal, 2013
We propose an optical signal-to-noise ratio (OSNR) estimation technique using self-equalized complementary Golay sequences for both QPSK and 16-QAM coherent optical systems. The training sequences have complementary spectra, which enable accurate channel
C. Do   +4 more
doaj   +1 more source

Filterbank-Assisted Channel Estimation for Coherent Optical FBMC/OQAM System

open access: yesIEEE Photonics Journal, 2022
In this paper, a new channel estimator for optical filter bank multicarrier with an offset-QAM modulation (FBMC/OQAM) system is proposed. The conventional channel estimation techniques that are based on interference approximation method (IAM ...
Khaled A. Alaghbari   +4 more
doaj   +1 more source

A Cost-Effective Tethered-UAV-Based Coherent Near-Field Antenna Measurement System

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
For antenna measurements, the device under test (DUT) is usually transported to an anechoic chamber equipped with a scanner system. To measure on-site, unmanned aerial vehicles (UAVs) are a flexible solution as they can precisely maneuver a probe antenna
Raimund A. M. Mauermayer   +1 more
doaj   +1 more source

On the Coherent State Path Integral for Linear Systems [PDF]

open access: yes, 2005
We present a computation of the coherent state path integral for a generic linear system using ``functional methods'' (as opposed to discrete time approaches).
A. Albeverio   +9 more
core   +4 more sources

Bayesian Estimation of Component Reliability in Coherent Systems

open access: yesIEEE Access, 2018
The first step in statistical reliability studies of coherent systems is the estimation of the reliability of each system component. For the cases of parallel and series systems, the literature is abundant, but it seems that the present paper is the ...
Agatha S. Rodrigues   +3 more
doaj   +1 more source

EXISTENCE OF COHERENT SYSTEMS [PDF]

open access: yesInternational Journal of Mathematics, 2008
A coherent system of type (r, d, k) on a curve consists of a vector bundle of rank r and degree d together with a vector space of dimension k of the sections of this vector bundle. There is a stability condition depending on a positive real parameter α that allows to construct moduli spaces for these objects.
openaire   +3 more sources

Research on DPPM Technology in Coherent Optical Space Laser Communication

open access: yesGuangtongxin yanjiu, 2022
Aiming at the modulation problem of high energy efficiency and high sensitivity in the space laser communication system, the Differential Pulse Position Modulation (DPPM) format is studied and applied to the coherent optical communication system.
Xi WANG, Jie LI, Ming LUO
doaj   +3 more sources

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