Qatar University Institutional Repository: Recent submissions
Now showing items 781-800 of 28761
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Refine and Identify: An Accelerated Iterative Algorithm for Securing Federated Learning
( IEEE , 2024 , Conference Paper)The identification of malicious users within a large set of participants poses a significant challenge in the domains of cybersecurity, data integrity, user management, and particularly within federated learning (FL) ... -
Towards Contactless Remote Health Monitoring using Ambient RF Sensing
( IEEE , 2023 , Conference Paper)In this paper, a passive (bi-static) radar-based health monitoring system called, HBR-Radio, is introduced. HBR-Radio utilizes ambient radio frequency disturbance sensing to achieve remote health monitoring. HBR-Radio is ... -
Satellite
( IEEE , 2023 , Conference Paper)The fifth generation (5G) wireless communication systems development has brought about a paradigm shift using advanced technologies; including softwarization, virtualization, massive MIMO, and ultradensification, in addition ... -
Rate Control for RIS-Empowered Multi-Cell Dual-Connectivity HetNets: A Distributed Multi-Task DRL Approach
( IEEE , 2024 , Article)Heterogeneous wireless networks (HetNets), where networks are deployed with ultra-dense small cells (SCs), is one of the main enabling technologies for future wireless networks. In such networks, signals are vulnerable to ... -
Optimized Load-Scheduling Algorithm for CubeSat's Electric Power System Management Considering Communication Link
( IEEE , 2023 , Article)CubeSats have been gaining significant interest as a cost-effective solution that can be built with low power requirements for different mission types. The most critical subsystem in CubeSats is the electrical power subsystem ... -
Low-Complexity Coding, Modulation and Pulse Shaping for SkyCubesNet CubeSat Transceivers
( IEEE , 2023 , Conference Paper)CubeSats present a promising opportunity to meet the rapidly increasing demand on high-speed connectivity. The SkyCubesNet project aims to establish a CubeSat constellation over Qatar and Turkey that provides high-speed ... -
On Localization of Sources of Hazards Using Search Agents
( IEEE , 2023 , Conference Paper)Localization of sources of hazardous phenomena such as gas leakages in air and oil spells in seawater is of high importance for environmental and civil protection. In this paper, we study variations of bio-inspired search ... -
An overview of 2D metal sulfides and carbides as Na host materials for Na-ion batteries
( Elsevier , 2023 , Article Review)Both sodium-ion batteries (SIBs) and lithium-ion batteries (LIBs) operate on a similar principle and are striking for energy storage purposes. Although some electrode materials adapt favorably to LIBs, they are not pertinent ... -
Airborne Sounding Radar for Desert Subsurface Exploration of Aquifers: Desert-SEA: Mission concept study [Space Agencies]
( IEEE , 2024 , Article)Shallow aquifers are the largest freshwater bodies in the North African Sahara and the Arabian Peninsula. Their groundwater dynamics and response to climatic variability and anthropogenic discharge remain largely unquantified ... -
EXACT AND HEURISTIC APPROACHES FOR MAXIMIZING FLOWS IN UAV-ENABLED WIRELESS CELLULAR NETWORKS WITH MULTI-HOP BACKHAULS
( EDP Sciences , 2024 , Article)This paper investigates the problem of data routing in backhaul networks using Unmanned Aerial Vehicles (UAVs) to relay data from Small Cells (SCs) to the core network. The objective is to maximize the total fulfilled ... -
Fungal contamination and mycotoxins in aquafeed and tissues of aquaculture fishes and their biological control
( Elsevier B.V. , 2023 , Article)The presence of mycotoxins in food and feed is a significant issue, especially in fish farming where it can negatively impact farmed fish species. In this study, samples of aquaculture feed and fishes tissues were collected ... -
Extraction and characterization of biofunctional lignocellulosic fibers from Pulicaria undulata plant and the effect of alkali treatment on their bio-physicochemical properties
( Elsevier , 2024 , Article)This study aimed to extract and characterize natural fibers from the P. undulata plant and to evaluate their antioxidant and antimicrobial activities, including the influence of alkali treatment on the bio-physicochemical ... -
Extraction and characterization of natural fibers from Pulicaria gnaphalodes plant and effect of alkali treatment on their physicochemical and antioxidant properties
( Frontiers Media , 2024 , Article)The study aimed to extract and characterize natural fibers from Pulicaria gnaphalodes (Vent.) Boiss. plants and assess the impact of alkali treatment on the physicochemical and antioxidant properties of these fibers. Fibers ... -
Use of phytochemicals to control the Mycotoxicosis in poultry
( Taylor and Francis Ltd. , 2024 , Article)SUMMARY: Mycotoxins are the secondary fungal metabolites produced by various toxigenic fungal species and are found in several feedstuffs, particularly in plants during pre- and post-harvesting conditions, like processing, ... -
Investigation of novel bacteriocin producers of Bacillus thuringiensis and partial characterization of two new bacteriocins: Thuricin 466 and thuricin 4Q7
( Elsevier Ltd , 2024 , Article)This study assessed the bacteriocin-producing capability of 140 strains of Bacillus thuringiensis isolated from Qatar. Numerous Bt strains exhibited strong antibacterial activity against both the foodborne pathogen B. ... -
Graphitic Carbon Nitride Nanosheets Decorated with Zinc-Cadmium Sulfide for Type-II Heterojunctions for Photocatalytic Hydrogen Production
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)In this study, we fabricated graphitic carbon nitride (g-C3N4) nanosheets with embedded ZnCdS nanoparticles to form a type II heterojunction using a facile synthesis approach, and we used them for photocatalytic H2 production. ... -
Visible light-induced H<inf>2</inf> production and pollutant degradation by copper oxide nanosphere embedded zinc-cadmium-sulfide composite
( Springer Nature , 2024 , Article)Green hydrogen production using solar water splitting and solving water pollution issues are intricately intertwined global goals which are hindered by the scarcity of highly active photocatalytic materials. Herein, we ... -
Erratum: Prevalence and determinants of symptomatic COVID-19 infection among children and adolescents in Qatar: A cross-sectional analysis of 11 445 individuals (Epidemiology and Infection (2021) 149 (E193) DOI: 10.1017/S0950268821001515)
( Cambridge University Press , 2021 , Article)The original version of this article was published with a mistake in one of the authors’ names. “Abdallah Musa Abdallah” is the correct full name but this was initially published as just “Abdallah Musa”. This has now been ... -
Prevalence and determinants of symptomatic COVID-19 infection among children and adolescents in Qatar: a cross-sectional analysis of 11 445 individuals
( NLM (Medline) , 2021 , Article)[No abstract available] -
Metabolic predictors of COVID-19 mortality and severity: a survival analysis
( Frontiers Media SA , 2024 , Article)Introduction: The global healthcare burden of COVID-19 pandemic has been unprecedented with a high mortality. Metabolomics, a powerful technique, has been increasingly utilized to study the host response to infections and ...
