Browsing Research Units by Title
Now showing items 1177-1196 of 4556
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Effect of Alkaline Activators on the Mechanical Properties of Geopolymer Mortar
( Qatar Univesrity Press , 2020 , Conference Paper)"Geopolymerization is a process where silica and alumina rich source materials turn into excellent binding materials by the aid of alkali solutions. Materials such as fly ash are by-products in energy power plants. Fly ... -
The Effect of Aluminium Dross on Mechanical and Corrosion Properties of Concrete
( OMICS International , 2014 , Article)It is the objective of this project is to investigate the mechanical and chemical behaviour of new concrete type obtained by adding aluminium dross which is an impure aluminium mixture that results from metals melting and ... -
Effect of ambient temperature on the efficiency of the PCPDTBT: PC71BM BHJ solar cells
( Springer Verlag , 2017 , Article)In this research article, the influence of environment temperature on the performance of the organic bulk heterojunction organic solar cells has been investigated. We describe the effect of ambient temperature on the ... -
Effect of anions on the structural, morphological and dielectric properties of hydrothermally synthesized hydroxyapatite nanoparticles
( Springer Nature , 2020 , Article)Synthetic nano hydroxyapatites (HA) have been considered as potential biomaterials for bone tissue engineering applications because of its excellent biological properties. The present work deals with the synthesis of HA ... -
Effect of annealing temperature on the performance of printable carbon electrodes for perovskite solar cells
( Elsevier B.V. , 2019 , Article)Perovskite solar cells (PSCs) with mesoporous TiO2 electron transport layers have reached >22% efficiency at laboratory scale (<1 cm2), however, these layers are fabricated using spin-coating, which is not conducive ... -
Effect of barrier plasma pre-treatment on polyester films and their adhesive properties on oak wood
( North Carolina State University , 2016 , Article)A barrier plasma, created at atmospheric pressure, was used to improve the surface and adhesive properties of polyester (PES) film with respect to wood using polyurethane adhesives. The modification of PES film surfaces ... -
Effect of blend ratio and nanofiller localization on the thermal degradation of graphite nanoplatelets-modified PLA/PCL
( Springer Netherlands , 2019 , Article)A variety of poly(lactic acid) (PLA)-poly(ε-caprolactone) (PCL) samples with different PLA:PCL ratios, containing different contents of graphite nanoplatelets (GrP), were analysed in a thermogravimetric analyser (TG) under, ... -
Effect of bond enhancement using carbon nanotubes on flexural behavior of RC beams strengthened with externally bonded CFRP sheets
( Springer Nature , 2022 , Article)This paper studied the effect of incorporation of carbon nanotubes (CNTs) in carbon fiber reinforced polymer (CFRP) on strengthening of reinforced concrete (RC) beams. The RC beams were prepared, strengthened in flexure ... -
Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete
( Elsevier , 2024 , Article)This study aimed to assess the impact of waterborne pre-dispersed multiwall carbon nanotubes (MWCNTs) at a concentration of 0.2 wt % on the bond strength between concrete and non-corrosive reinforcements, including stainless ... -
Effect of CARMA 2sh gene in Mouse embryonic stem (ES) cells
(2017 , Poster)CARMA2 belongs to the CARMA family of proteins. They are involved in the regulation and activation of NF-κB that have a central role in the control of immune and inflammatory response, and cell survival and proliferation. ... -
Effect of cell-phone radiofrequency on angiogenesis and cell invasion in human head and neck cancer cells.
( Wiley , 2018 , Article)Today, the cell phone is the most widespread technology globally. However, the outcome of cell-phone radiofrequency on head and neck cancer progression has not yet been explored. The chorioallantoic membrane (CAM) and human ... -
Effect of cerium doping on the optical and photocatalytic properties of ZnO nanoflowers
( Indian Academy of Sciences , 2019 , Article)Photocatalytic performances of the synthesized cerium doped (Ce-doped) ZnO nanoflowers are reported in this work. A microwave-assisted sol–gel method is adopted for the synthesis of the nanomaterial and its structural and ... -
Effect of chain structure on the properties of Glass fibre/polyethylene composites
( Elsevier, Ltd , 2013 , Article)Three types of polyethylenes (low density: LDPE, medium density: MDPE, and high density: HDPE) were used to investigate the effect of chain branching on the dispersion and adhesion in Glass fibre reinforced polymer composites. ... -
Effect of charge type and density of polyacrylamide on the electrokinetics behavior of flocculated bentonite suspensions
( AIChE , 2016 , Conference Paper)The study of electrokinetics behavior of clay suspensions is of fundamental importance in many industrial applications. This paper addresses the electrokinetics behavior of polyacrylamide (PAM)- bentonite suspensions. The ... -
The Effect of Citizenship status on Satisfaction with Healthcare Services: Implications for Policymaking in Qatar
(2015 , Presentation)Objectives Using data collected before the roll out of the Qatar National Health Insurance Scheme, this study explores the role of citizenship as a predictor of general satisfaction with healthcare services and its potential ... -
Effect of CO2 adsorption on enhanced natural gas recovery and sequestration in carbonate reservoirs
( Elsevier B.V. , 2018 , Article)In this study, CO2 injection for the purpose of Enhanced Gas Recovery (EGR) and sequestration after primary recovery is investigated on Pink Desert limestone from Edwards Plateau formation in central-west Texas. In this ... -
Effect of cold and hot compactions on corrosion behavior of p- and n-type bismuth telluride-based alloys developed through microwave sintering process
( Elsevier , 2023 , Article)Bismuth Telluride (BiTe) based p-type and n-type alloys exhibit superior thermoelectric (TE) performance covering energy requirements for specialized and home utilization. The main challenge nowadays is the sustainability ... -
EFFECT OF COMPATIBILIZER ON MECHANICAL AND PHYSICAL PROPERTIES OF GREEN COMPOSITES BASED ON HIGH DENSITY POLYETHYLENE AND DATE PALM FIBER
( DEStech Publications , 2013 , Conference Paper)Date palm leaves and wood are common wastes in the middle east. These natural fibers can be used as additives for polymers to develop new desired properties; they also have important economic and environmental advantages. ... -
Effect of concentration of DOC loaded TiO 2 nanotubes on the corrosion behavior of smart coatings
( Elsevier Ltd , 2019 , Article)The present work focuses on synthesis and characterization of novel polymeric based smart coatings containing various amount of titania nanotubes (TiO2) encapsulated with dodecylamine (DOC). The novelty of the current ... -
Effect of concentration of TiC on the properties of pulse electrodeposited Ni-P-TiC nanocomposite coatings
( Elsevier Ltd , 2021 , Article)Ni-P/TiC nanocomposite coatings, including different concentrations of TiC nanoparticles (TCNPs) were developed on HSLA (high strength low alloy steel) substrates through the pulse electrodeposition (PED) process. The ...