Performance analysis of FSO cooperative communications with rf inter-connected relays in the absence and presence of channel state information. (c2018) حسب Hamad, Mustapha Ismail

"…Conversely, some limitations face the proposed scheme such as the difficulty of ensuring clear line of sight (LOS) between all the relays in the system which is required for deploying the FSO links. …"
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Assessing Energy Saving Potential in Existing Buildings in Abu Dhabi through Passive Retrofitting Strategies: Case Study –Office Buildings حسب Manneh, Abeer

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Global burden of 87 risk factors in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019 حسب Christopher J L Murray (13580635)

"…Global declines also occurred for tobacco smoking and lead exposure. The largest increases in risk exposure were for ambient particulate matter pollution, drug use, high fasting plasma glucose, and high body-mass index. …"