Results 11 to 20 of about 232,054 (254)

Impact of Intercore Crosstalk on the Transmission Distance of QAM Formats in Multicore Fibers

open access: yesIEEE Photonics Journal, 2016
We investigate the impact of intercore crosstalk on the achievable transmission distance of three square quadrature amplitude modulation (QAM) formats. We show that increasing intercore crosstalk across an 18 dB range starting from −43.4 dB/100 km
B. J. Puttnam   +6 more
doaj   +1 more source

Multipair Two-Way DF Relaying With Cell-Free Massive MIMO

open access: yesIEEE Open Journal of the Communications Society, 2021
We consider a two-way half-duplex decode-and-forward (DF) relaying system with multiple pairs of single-antenna users assisted by a cell-free (CF) massive multiple-input multiple-output (mMIMO) architecture with multiple-antenna access points (APs ...
Anastasios K. Papazafeiropoulos   +3 more
doaj   +1 more source

Identification of corrosion in reinforcement rebars by using the GPR

open access: yesMATEC Web of Conferences, 2014
Considering the problem of corroded steel reinforcements buried in concrete members, a methodology based on ground penetrating radar was proposed for the identification of the corrosion affected zone.
Mechbal Z., Khamlichi A.
doaj   +1 more source

dtwParallel: A Python package to efficiently compute dynamic time warping between time series

open access: yesSoftwareX, 2023
dtwParallel is a Python package that computes the Dynamic Time Warping (DTW) distance between a collection of (multivariate) time series (MTS). dtwParallel incorporates the main functionalities available in current DTW libraries and novel functionalities
Óscar Escudero-Arnanz   +4 more
doaj   +1 more source

Effect of loading pulse duration on dynamic buckling of stiffened panels

open access: yesMATEC Web of Conferences, 2014
Design of stiffened panels requires evaluating their stability under various loading combinations for all possible scenarios regarding material degradation or initial geometric imperfections that could affect them.
Mouhat O., Khamlichi A.
doaj   +1 more source

Estimation of Soil Characteristics from Multispectral Sentinel-3 Imagery and DEM Derivatives Using Machine Learning

open access: yesSensors, 2023
In this paper, different machine learning methodologies have been evaluated for the estimation of the multiple soil characteristics of a continental-wide area corresponding to the European region, using multispectral Sentinel-3 satellite imagery and ...
Flavio Piccoli   +3 more
doaj   +1 more source

A Multispectral Camouflage Net Evaluation Capability

open access: yesIEEE Access
The need for standardized guidelines and common evaluation techniques for assessing camouflage nets represents a challenge for the military operational community.
Radouane Karli   +5 more
doaj   +1 more source

DL-Based Physical Tamper Attack Detection in OFDM Systems with Multiple Receiver Antennas: A Performance–Complexity Trade-Off

open access: yesSensors, 2022
This paper proposes two deep-learning (DL)-based approaches to a physical tamper attack detection problem in orthogonal frequency division multiplexing (OFDM) systems with multiple receiver antennas based on channel state information (CSI) estimates. The
Eshagh Dehmollaian   +3 more
doaj   +1 more source

PangeBlocks: customized construction of pangenome graphs via maximal blocks

open access: yesBMC Bioinformatics
Background The construction of a pangenome graph is a fundamental task in pangenomics. A natural theoretical question is how to formalize the computational problem of building an optimal pangenome graph, making explicit the underlying optimization ...
Jorge Avila Cartes   +4 more
doaj   +1 more source

State Recognition of Food Images Using Deep Features

open access: yesIEEE Access, 2020
State recognition of food images is a recent topic that is gaining a huge interest in the Computer Vision community. Recently, researchers presented a dataset of food images at different states where unfortunately no information regarding the food ...
Gianluigi Ciocca   +2 more
doaj   +1 more source

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