Results 11 to 20 of about 3,586 (179)

EXAMPLE OF SWITCHING HYBRID FSO/RF SYSTEMS [PDF]

open access: yesActa Electrotechnica et Informatica, 2021
This article addresses the issue of optical communication with Free Space Optics (FSO) and its use. The article deals with the design and construction of a monitoring system designed for the collection and processing of data characterizing the nature of
Renát HALUŠKA, Ľuboš OVSENÍK
doaj   +1 more source

Modeling the risks of marine submersion on the Saidia coastal- Cap de l'Eau (Northeast Morocco) [PDF]

open access: yesE3S Web of Conferences, 2021
The coastline is an area of ecological and environmental balance between the continent and the sea. The coastline from Saidia to Cap de l'Eau, located on the Mediterranean coast of Morocco, is the subject of this study.
Ramdani Samhane   +4 more
doaj   +1 more source

A survey on performance evaluation of artificial intelligence algorithms for improving IoT security systems

open access: yesScientific Reports, 2023
Security is an important field in the Internet of Things (IoT) systems. The IoT and security are topical domains. Because it was obtained 35,077 document results from the Scopus database.
Hind Meziane, Noura Ouerdi
doaj   +1 more source

Flood Hazard Mapping in Rural Area: Case of Ephemeral Watercourses in SidiBoulenouar Zone [PDF]

open access: yesE3S Web of Conferences, 2021
The eastern region of Morocco is characterized by an arid to semi-arid climate. It is often confronted with heavy rainfall episodes that can generate floods that can cause adverse human and property damage.
Amar Imane   +3 more
doaj   +1 more source

Least energy sign-changing solutions for a nonlocal anisotropic Kirchhoff type equation

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this paper, we investigate the existence of sign-changing solutions for the following class of fractional Kirchhoff type equations with potential (1+b[u]α2)((-Δx)αu-Δyu)+V(x,y)u=f(x,y,u),(x,y)∈ℝN=ℝn×ℝm,\left( {1 + b\left[ u \right]_\alpha ^2} \right ...
Rahmani Mohammed   +3 more
doaj   +1 more source

Shadowed FSO/mmWave Systems With Interference [PDF]

open access: yesIEEE Transactions on Communications, 2019
We investigate the performance of mixed free space optical (FSO)/millimeter-wave (mmWave) relay networks with interference at the destination. The FSO/mmWave channels are assumed to follow Malaga-M/Generalized-K fading models with pointing errors in the FSO link.
Imène Trigui   +3 more
openaire   +2 more sources

Statistical Model of Digital Coherent Combining Efficiency in Multi-aperture Receivers

open access: yesGuangtongxin yanjiu, 2022
In order to mitigate the performance fading of Free-Space Optical (FSO) communication system caused by atmospheric turbulence, a multi-aperture receiving scheme based on digital coherent beam combining is used.
Jing-song XIANG, Xin-hao Lü
doaj   +1 more source

WiMAX on FSO: Outage Probability Analysis [PDF]

open access: yesIEEE Transactions on Communications, 2012
The transmission of multiple wireless signals over optical links has attained a great research interest nowadays. In case where optical fibers are difficult to be deployed, or installation cost is prohibited, optical wireless systems provide an efficient alternative means.
Nicholas Vaiopoulos   +2 more
openaire   +2 more sources

Possibility to Obtain Anti-Athrax Human Immunoglobulin for Intravenous Injection

open access: yesПроблемы особо опасных инфекций, 2008
For the first time specific Ig was obtained from blood plasma of donors immunized by combined anthrax vaccine. This Ig conforms to quality standards for intravenous immunoglobulins and includes antibodies to Bacillus anthracis protective antigen in titer
V. Yu. Dolmatov   +10 more
doaj   +1 more source

Design Analysis of A Compensation Technique In FSO Communication System to Mitigate Atmospheric Turbulence Effect [PDF]

open access: yesEngineering and Technology Journal, 2019
Free-space laser communication systems usually experience strong channel fading caused by atmospheric turbulence. To mitigate the impact of atmospheric turbulence on free-space optical links using compensation techniques including adaptive optical (AO ...
Jenan Kalati, Shehab Kadhim
doaj   +1 more source

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