College of Arts & Sciences: Recent submissions
Now showing items 1381-1400 of 3507
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Formulation of flowable anolyte for redox flow batteries: Rheo-electrical study
( Elsevier , 2015 , Article)In an attempt to optimize a suspension electrode for redox flow batteries, this work demonstrates the effect of solid content and additive material on the electrical and rheological behavior of an anolyte made up of lithium ... -
Harmonic image inpainting using the charge simulation method
( Springer , 2022 , Article)It was recently reported that harmonic inpainting or Laplace interpolation when used in the context of image compression can yield impressive reconstruction results if the encoded pixels were carefully selected. Mathematically, ... -
Simulating local fields in carbon nanotube-reinforced composites for infinite strip with voids
( Springer , 2022 , Article)A numerical simulation of the thermal properties is conducted for an isotropic and homogeneous infinite strip composite reinforced by carbon nanotubes (CNTs) and containing voids. The CNTs can be uniformly or randomly ... -
Suspensions of carbon nanofibers in organic medium: Rheo-electrical properties
( Royal Society of Chemistry , 2015 , Article)The nonaqueous suspensions of carbon nanofibers (CNFs) in 1 M lithium bis(trifluoromethanesulfonaimide) in propylene carbonate electrolyte reveal unique structural evolution and shear-induced transition due to the high ... -
“‘Pleading Human’ in Paul Beatty’s The Sellout”
( Routledge , 2022 , Article)This paper analyses Paul Beatty’s Booker Prize winning comic novel, The Sellout (2015), as it relates to theories of black posthumanism, as outlined in the work of Alexander Weheliye and Hortense Spillers. In the novel, ... -
Effects of BA.1/BA.2 subvariant, vaccination, and prior infection on infectiousness of SARS-CoV-2 omicron infections.
( Oxford University Press , 2022 , Article)Compared to BA.1, BA.2 was associated with lower RT-qPCR cycle threshold (Ct) value-3.53 fewer cycles (95% CI: 3.46-3.60), signifying higher infectiousness. This may reflect higher viral load and/or longer duration of ... -
MXene-based aptasensors: Advances, challenges, and prospects
( Elsevier , 2022 , Article)The combination of 2D MXenes with high affinity aptamers has resulted in the development of innovative aptasensing approaches for food/water safety and clinical diagnosis. Aptamers have quite a number of benefits over ... -
Likelihood and Bayesian Inference in the Lomax Distribution under Progressive Censoring
( Horizon Research Publishing(HRPUB) , 2022 , Article)The Lomax distribution has been used as a statistical model in several fields, especially for business failure data and reliability engineering. Accurate parameter estimation is very important because it is the base for ... -
Impact of COVID-19 Pandemic News on the Cryptocurrency Market and Gold Returns: A Quantile-on-Quantile Regression Analysis
( MDPI , 2022 , Article)In this paper, we investigate the relationship between the RavenPack news-based index associated with coronavirus outbreak (Panic, Sentiment, Infodemic, and Media Coverage) and returns of two commodities—Bitcoin and gold. ... -
Language And Revolution: A Linguistic Analysis Of Manipulation In George Orwell's Works
( كلية الآداب و اللغات - جامعة محمد بوضياف-المسيلة , 2022 , Article)This article tackles how language fails revolutions. It studies the linguistic techniques of manipulation that have been in Orwell’s ‘Animal Farm’ to control the community aftermath of a revolution. The article extends its ... -
Development of a novel tailored ion-imprinted polymer for recovery of lithium and strontium from reverse osmosis concentrated brine
( Elsevier , 2022 , Article)This study aims to prepare ion-imprinted polymer (IIP) with the benefit of a metal-based sorbent, which is fabricated to selectively adsorb lithium (Li+) from aqueous solutions, and in an attempt to remove strontium (Sr2+). ... -
Activation of kaolin with minimum solvent consumption by microwave heating
( Mineralogical Society , 2014 , Article)A kaolin clay was activated with 1.0 M H2SO4 solution at minimum liquid to solid ratio (L/S) using microwave heating. The optimum experimental conditions for activation were L/S ratio 3.0 mL 1 M H2SO4 per gram kaolin, ... -
Influence of diesel acidification on dibenzothiophene removal: A new desulfurization practice
( Elsevier , 2015 , Article)Commercial diesel is often loaded with organosulphur compounds including hard-to-remove dibenzothiophene DBT and other derivatives. Following uncommon and simple procedure, dibenzothiophene was selectively removed upon ... -
Metal distribution in marine sediment along the Doha Bay, Qatar
( Kluwer Academic Publishers , 2015 , Article)Concentrations of 25 heavy metals (Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, V, Zn and Hg) in surface sediments along the Doha Bay from 10 transects each with five stations were ... -
Insights into the remediation characterization of modified bentonite in minimizing organosulphur compounds from diesel fuel
( Korean Society of Industrial Engineering Chemistry , 2015 , Article)In this work, physical and chemical characteristics of the raw, treated, and acid activated bentonite were investigated using XRD, FTIR, scanning electron microscopy (SEM), and differential thermal analysis (DTA)/thermogravimetry ... -
Kinetics and thermodynamics of enhanced adsorption of the dye AR 18 using activated carbons prepared from walnut and poplar woods
( Elsevier , 2015 , Article)Activated carbons prepared from walnut and poplar woods are used as economical adsorbents for the rapid removal and fast adsorption of Acid Red 18 dye from the aqueous solutions; the kinetics, isotherm and thermodynamics ... -
Selective removal of dibenzothiophene from commercial diesel using manganese dioxide-modified activated carbon: A kinetic study
( Taylor and Francis Ltd. , 2015 , Article)With a total concentration of 7055 mgS/kgfuel, the content of organosulphur compounds (OSCs) in local diesel is 20 times higher than the regulated value. Analysis revealed that 30% of OSC is originated from dibenzothiophene ... -
Source identification of beached oil at Al Zubarah, Northwestern Qatar
( Elsevier B.V. , 2017 , Article)The Gulf was contaminated with a large quantity of crude oil during the Gulf War in 1991. Some of the oil beached on the shorelines of the Northwest coast of Qatar. It was discovered, during a sampling campaign in 2015, ... -
A novel desulfurization practice based on diesel acidification prior to activated carbon adsorption
( Springer New York LLC , 2015 , Article)Commercial diesel is often rich with organosulfur compounds and a value of 7,100 mgS/kg was recently reported. As confirmed by chromatographic analysis, about 36% of sulfur compounds are originated from dibenzothiophene. ... -
Determination of aflatoxins in coffee by means of ultra-high performance liquid chromatography-fluorescence detector and fungi isolation
( Taylor and Francis Ltd. , 2020 , Article)In this study, fourteen coffee samples were collected from local markets in Doha, Qatar according to different variables i.e. packed or unpacked, beans or powder, roasted or raw bean samples. The coffee samples were subjected ...