Qatar University Institutional Repository: Recent submissions
Now showing items 101-120 of 28054
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Improved Handshaking Procedures for Transport Layer Security in Software Defined Networks
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)Software defined networking (SDN) has emerged as a new technology to enhance the flexibility, resilience, and automated centralized management of a network. Recently several reports have identified possible vulnerabilities, ... -
TITLE YIELD INDEX BASED ON CONCEPT OF SIX-SIGMA SSCpk FOR ASSESSMENT PROCESS PERFORMANCE IN INDUSTRIES
( Faculty of Engineering, University of Kragujevac , 2021 , Article)Process quality is a key factor in facilitating product sales, (PCIs), which determine the relationship between the manufacturing specifications and the actual process performance by quantifying process potential. Although ... -
Data-Driven Covert-Attack Strategies and Countermeasures for Cyber-Physical Systems
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)This paper studies covert-attacks for cyber-physical systems (CPS) under conditions that adversaries do not explicitly know the system characteristic matrices (A, B, C). Covert-attacks are considered as undetectable type ... -
Compensation of Effect of Line Parameters on Reactive Power Sharing in AC Microgrid
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)The effects of mismatched interconnecting cable impedances, unequal local loads connected near to sources and difference in nominal voltages of sources lead to inaccurate reactive power sharing in ac microgrid. To ensure ... -
A Blockchain-Based Security Scheme for Vehicular Ad Hoc Networks in Smart Cities
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)The development of Vehicular Ad Hoc Networks (VANET) has brought many advantages to facilitate the deployment of the Intelligent Transportation System (ITS). However, without proper protection, VANETs can be vulnerable to ... -
A Special Class of Zero Dynamics Cyber-Attacks for SISO Time-Delay Systems
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)In this paper, we consider zero dynamics cyber-attacks of linear single-input, single-output time-delay systems. We are mainly investigating structural properties of these attacks by invoking and applying available results ... -
Semi-implicit Midpoint Rule for Convergence in Hyperbolic Metric Space
( Cambridge Scientific Publishers , 2021 , Article)Semi-implicit midpoint rule is a powerful numerical method for solving ordinary and partial differential equation. In this study we prove Strong and Δ-convergence of semi-implicit midpoint rule for nonexpansive mapping in ... -
A new method for analyzing microplastic particle size distribution in marine environmental samples
( Institute for Biodiversity and Ecology , 2019 , Article)Microplastics (MPs) are recognized as a global emerging threat to aquatic ecosystems and biodiversity worldwide. Though the number of publications and interest to the MP research have been increased rapidly, it is still ... -
Wastewater remediation using coal fly ash nanocomposites
( Elsevier , 2020 , Book chapter)The rapid contamination of and drastic decrease in clean water sources have forced researchers towards the development and implementation of highly efficient wastewater treatment (WWT) technologies. Adsorption alone is an ... -
Unveiling the nexus between atmospheric visibility, remotely sensed pollutants, and climatic variables across diverse topographies: A data-driven exploration empowered by artificial intelligence
( Elsevier , 2024 , Article)Deteriorating visual range (VR) can cause challenges for the transportation sector, resulting in economic and life losses. Air pollutants, smoke, fog, and many meteorological parameters such as air temperature (T), relative ... -
Visible light assisted photocatalytic degradation of methylene blue using iodine doped Fe3O4-GO composite
( Elsevier , 2023 , Article)Environmental contamination and wastewater discharge from industrial activities are global issues that must be addressed immediately. The uncontrolled discharge of dangerous organic compounds constitutes a significant ... -
Ultrasound-assisted oxidative desulphurization of coal using choline chloride-based deep eutectic solvents
( Springer Nature , 2024 , Article)The emission of sulfur compounds during the combustion of coal is the main cause of atmospheric pollution and poses a threat to human health and the ecosystem. Thus, elimination of sulfur compounds from coal before its use ... -
Electrically conductive fibers fabrication and characterization via in-situ polymerization of aniline for the protection against EMI and thermal imaging signals
( Elsevier , 2023 , Article)Polyester fibers (PEF) were successfully coated with Polyaniline (PANI) via in situ polymerization to make electrically conductive fibers (ECF). X-ray diffraction (XRD) analysis confirms the synthesis and scanning electron ... -
The Fabrication of Halogen-Doped FeWO4 Heterostructure Anchored over Graphene Oxide Nanosheets for the Sunlight-Driven Photocatalytic Degradation of Methylene Blue Dye
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Rapid industrialization and urbanization are the two significant issues causing environmental pollution. The polluted water from various industries contains refractory organic materials such as dyes. Heterogeneous ... -
Investigation of boron-doped graphene oxide anchored with copper sulphide flowers as visible light active photocatalyst for methylene blue degradation
( Nature Research , 2023 , Article)The non-biodegradable nature of waste emitted from the agriculture and industrial sector contaminates freshwater reserves. Fabrication of highly effective and low-cost heterogeneous photocatalysts is crucial for sustainable ... -
Characterization and source identification of PM2.5 during intense haze episodes in an urban environment of Lahore
( Elsevier , 2024 , Article)In the backdrop of persistent haze occurrences affecting Southeast Asia and Pakistan's environmental landscape, this study delves into an in-depth analysis of atmospheric Particulate Matter (PM2.5) during intense haze ... -
Enhanced electromagnetic interference shielding using Nanosilver-Decorated Graphene/Poly(vinyl chloride) nanocomposite films
( Elsevier , 2024 , Article)Silver nanoparticles (AgNPs) were prepared by chemical reduction and grafted onto thermally reduced graphene oxide (TRGO) sheets. PVC-based nanocomposite films with various Ag/TRGO concentrations were synthesized via ... -
Ternary silver tungstate-MoS2/graphene oxide heterostructure nanocomposite for enhanced photocatalysis under visible light and antibacterial activity
( Elsevier , 2023 , Article)Wastewater emanating out of industrial units is loaded with hazardous organic dyes. The hindrance in sunlight penetration into the water by this dye-loaded wastewater has led to disruption in an aquatic ecosystem. Along ... -
Coal fly ash supported Ag@Bi2WO6: A novel heterogeneous nanocomposite for effective sunlight driven photocatalytic degradation of dye
( Elsevier , 2023 , Article)Water contamination is a serious environmental issue. It has detrimental effects on the living habitat. This contaminated water is treated with numerous physicochemical techniques. Presently, adsorption-enhanced photo-catalysis ... -
The GO/Bi2O3/WO3 ternary hybrid composite as an efficient sunlight-driven heterogeneous photocatalyst for wastewater remediation
( Springer Nature , 2024 , Article)Semiconductor photocatalysts with engineered heterostructure are gaining attention for environmental remediations. The combination of two or more metal oxides with support materials has proved an effective strategy for ...