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السجلات المعروضة 15 -- 34 من 4992
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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 calcium peroxide incorporated oxygen releasing chitosan-PVA patch for Diabetic wound healing
( Elsevier , 2023 , Article)Impaired wound healing is a major healthcare problem in patients with diabetes often resulting in gangrene, microbial infection and amputation of affected limb. The delay or absence in healing process arises from several ... -
A carbon dot-based clay nanocomposite for efficient heavy metal removal
( Royal Society of Chemistry , 2023 , Article)Carbon dots and their derivatives with fascinating photoluminescence properties have recently attracted tremendous scientific attention. This work describes the preparation of novel fluorescent bentonite clay (B), modified ... -
A CFD Investigation on the Effect of IPSBR Operational Conditions on Liquid Phase Hydrodynamics
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)This study used a computational fluid dynamics simulation of an inert-particle spouted-bed reactor, which consists of a cylindrical vessel with a conical base, to investigate the effect of different operational parameters ... -
A CFD- RSM study of cuttings transport in non-Newtonian drilling fluids: Impact of operational parameters
( Elsevier B.V. , 2022 , Article)Cuttings removal out of the wellbore represents a real barrier for successful drilling operations. The performance of hole cleaning is determined by several factors. The current article provides a theoretical study of the ... -
A combined pathway for the synthesis of nitidine family alkaloids
( Springer Netherlands , 2019 , Article)Three related alkaloids, oxynitidine, nitidine and 5,6-dihydronitidine, have been afforded by the new synthetic protocols. In this approach, the Ni-catalyzed annulation reaction is indicated as the key step to construct ... -
A comparative physicochemical property assessment and techno-economic analysis of biolubricants produced using chemical modification and additive-based routes
( Elsevier , 2022 , Article)Several edible and non-edible oil sources are currently being developed as renewable basestocks for biolubricant production. However, these feedstocks possess undesirable physicochemical properties limiting their lubricant ... -
A comparative review of natural and synthetic biopolymer composite scaffolds
( MDPI AG , 2021 , Article Review)Tissue engineering (TE) and regenerative medicine integrate information and technology from various fields to restore/replace tissues and damaged organs for medical treatments. To achieve this, scaffolds act as delivery ... -
A Comparative Study of Chemically and Biologically Synthesized MgO Nanomaterial for Liquefied Petroleum Gas Detection
( Springer New York LLC , 2018 , Article)The exceptional chemical and physical properties of nanostructured materials are extremely suitable for designing new and enhanced sensing devices, particularly gas sensors and biosensors. The present work describes the ... -
A comparative study of novel activated AMP using 1,5-diamino-2-methylpentane vs MEA solution for CO2 capture from gas-fired power plant
( Elsevier Ltd , 2018 , Article)Bench-scale pilot plant study of AMP and 1,5-diamino-2-methylpentane (DA2MP) blend for CO2 capture from gas-fired power plant is investigated. The concentration of the amine blend is 2 kmol/m3 AMP-1.5 kmol/m3 DA2MP while ... -
A comparative study of Seagrasses Species in Regional Seas and QMZ
( Qatar University Press , 2021 , Poster)Seagrasses are flowering monocot green plants that have adapted to marine life, and remain completely immersed in seawater and are primary producers of food for numerous marine animals. Seagrasses are of worldwide distribution ... -
A comparative study of structural and mechanical properties of Al-Cu composites prepared by vacuum and microwave sintering techniques
( Elsevier Editora Ltda , 2018 , Article)In this paper, the aluminum metal matrix composite reinforced with copper particulates (3, 6 and 9 vol.%) were fabricated by high energy ball milling, followed by vacuum sintering (VS) and microwave sintering techniques ... -
A comparative study of the growth of Tetraselmis sp. in large scale fixed depth and decreasing depth raceway ponds
( Elsevier Ltd , 2016 , Article)In this study, an alternative approach was proposed where excess seawater would be added only during inoculation (DD) rather than daily addition (FD). Growth and metabolite contents of Tetraselmis sp. weren't affected for ... -
A Comparative Study of the Role of the Nation-State Building Process in the Middle East Crises; a Case Study of the Crisis in Bahrain, Iraq and Yemen
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2021 , Conference Paper)Political stability has always been the most important concern of the states. Political stability is equal with lack of serious threats and challenges that can put country in danger. Due to multiple reasons like; the lack ... -
A comparative study on long term stability of self-healing epoxy coating with different inorganic nanotubes as healing agent reservoirs
( BME-PT and GTE , 2017 , Article)Self-healing epoxy coatings were prepared with different nanotubes as reservoirs for epoxy monomer (healing agent). The nanotubes selected for the current study were TiO2 nanotubes with two different tube diameter (TNT1 ... -
A comparative study on the operational performance of four-leg intersections by control type
( Elsevier Ltd , 2018 , Article)The selection of proper control types at intersections at the planning stage is an important concern considering the difficulty in comparing the performance of different control types. Therefore, several manuals proposed ... -
A comparative study on the performance of hybrid solar cells containing ZnSTe QDs in hole transporting layer and photoactive layer
( Springer Netherlands , 2016 , Article)In this paper, ZnSTe quantum dots-based hybrid solar cells (HSC) with two different device architectures have been investigated. The improved performance of the poly(3-hexylthiophene) (P3HT) and [6,6]phenyl C71 butyric ... -
A comprehensive review of electrocoagulation for water treatment: Potentials and challenges
( Academic Press , 2017 , Article Review)Electrocoagulation is an effective electrochemical approach for the treatment of different types of contaminated water and has received considerable attention in recent years due its high efficiency in dealing with numerous ... -
A comprehensive review on the antiviral activities of chalcones
( Taylor and Francis Ltd. , 2021 , Article)Some viral outbreaks have plagued the world since antiquity, including the most recent COVID-19 pandemic. The continuous spread and emergence of new viral diseases have urged the discovery of novel treatment options that ... -
A comprehensive review on the rheological behavior of imidazolium based ionic liquids and natural deep eutectic solvents
( Elsevier B.V. , 2019 , Article Review)The rheological behavior of a fluid is an important property that has a distinct impact on its flow conduct, which influence viscosity dependent phenomena and applications such as pumping, mass transfer rates, and ...