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RIS-Assisted Green Secure Communications: Active RIS or Passive RIS?
IEEE Wireless Communications Letters, 2023 Reconfigurable Intelligent Surface (RIS) is one of the promising techniques for 6G wireless communications, and recently has also been shown to be able to improve secure communications. However, there is a "double fading" effect in the reflection link between base station and user, thus passive RIS only achieves a negligible secrecy gain in typical ...
Jia Bai, Qingli Yan, Hui-Ming Wang
exaly +3 more sources
Monitoring of environmental gases and calf health in Italian Mediterranean buffalo herd
Revista Científica, 2023 In buffalo breeding, calves require special attention and housing systems that provide thermal comfort, good air quality, brightness, and adequate space.
Simona Leonetti +4 more
doaj +1 more source
Guangtongxin yanjiu, 2022 There are problems of interference between Devices-to-Devices (D2D) communication users and cellular users, mutual interference between D2D communication users, and environmental interference caused by the existence of environmental obstacles in the D2D ...
Feng-ting FU, Li LI, Jing ZHANG
doaj +1 more source
South African Journal of Radiology, 2021 Background: South Africa (SA) has no national injury surveillance system, and hence, non-fatal gunshot injuries are not routinely recorded. Most firearm-related injuries require multi-detector computer tomography (MDCT) assessment at a tertiary-level ...
Dale K. Creamer +3 more
doaj +1 more source
Frequency Stability of Power System with Large Share of Wind Power Under Storm Conditions
Journal of Modern Power Systems and Clean Energy, 2020 The operation of transmission systems with large share of wind power is specially challenging under storm conditions. Under the stormy wind speed conditions, wind turbine protection system is designed to shut down the turbine to avoid excessive ...
Kaushik Das +3 more
doaj +1 more source
IEEE Open Journal of the Communications Society, 2021 Reconfigurable intelligent surface (RIS)-assisted transmission and space shift keying (SSK) appear as promising candidates for future energy-efficient wireless systems.
Qiang Li +4 more
doaj +1 more source
Postintensjonal moralsk vilkårlighet
Norsk Filosofisk Tidsskrift, 2020 Sammendrag Jeg har kalt artikkelen «Postintensjonal moralsk vilkårlighet». Tematikken står sentralt i en rekke filosofiske artikler på engelsk, sentrert omkring begrepet «moral luck».
Erik Brown
doaj +1 more source
Reconfigurable Intelligent Surface Enabled Spatial Modulation for Visible Light Communications
IEEE Photonics Journal, 2023 An important issue in visible light communications (VLC) is how to boost up the system throughput even when the line-of-sight (LOS) link is blocked by obstacles. In this paper, we propose reconfigurable intelligent surface (RIS) based spatial modulation (
Pengfei Shen, Lu Lu
doaj +1 more source
Cloud computing for radiologists
Indian Journal of Radiology and Imaging, 2012 Cloud computing is a concept wherein a computer grid is created using the Internet with the sole purpose of utilizing shared resources such as computer software, hardware, on a pay-per-use model.
Amit T Kharat +3 more
doaj +1 more source
Biophysical Characterization of the RI (RI-67) Viruses.
Experimental Biology and Medicine, 1955 SummaryThe diameter of RI-67 virus in infected HeLa culture material was about 109 mu (± 6 mu) determined by pseudo-velocity sedimentation experiments, 80-120 mu based on Gradacol membrane filtration and 90 mu (standard deviation ± 4 mu) shown by electron microscope measurement.
M R, HILLEMAN +2 more
openaire +2 more sources