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Now showing items 23940-23959 of 49818
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Synergistic Behavior of Polyethyleneimine and Epoxy Monomers Loaded in Mesoporous Silica as a Corrosion-Resistant Self-Healing Epoxy Coating
( American Chemical Society , 2022 , Article)Corrosion is a significant problem and is, to a large extent, responsible for the degradation of metallic parts. In this direction, mesoporous silica particles (MSPs) were synthesized by a sol–gel technique and had an ... -
Synergistic effect of amino acids and chloride ion on adsorption On copper metal
( Qatar University , 1994 , Article)The effect of adsorption of a- alanine, P-alanine, DL-aspartic, L-glutamine, iso-leucine and L-lysine in 1 M HC1 solution on the corrosion of copper has been studied using the potentiokinetic technique. The examined amino ... -
Synergistic effect of Co-Ni co-bridging with MoS2nanosheets for enhanced electrocatalytic hydrogen evolution reactions
( Royal Society of Chemistry , 2018 , Article)The depletion of fossil fuels and associated environmental problems have drawn our attention to renewable energy resources in order to meet the global energy demand. Electrocatalytic hydrogen evolution has been considered ... -
Synergistic effect of Cu2+ in Fe2+/H2O2 reaction system to enhance oxytetracycline degradation in polluted water
( Institute for Ionics , 2023 , Article)The higher production of HO· concentration associated with the presence of a Cu2+ co-catalyst in a Fe2+/H2O2 system is reported. The synergistic effect of the co-catalyst was investigated to evaluate the possibility of ... -
Synergistic effect of expanded graphite, diammonium phosphate and Cloisite 15A on flame retardant properties of EVA and EVA/wax phase change blends
( Springer , 2015 , Article)The influence of the introduction of expanded graphite (EG), as well as combinations of EG with Cloisite 15A clay and diammonium phosphate (DAP), into EVA and an EVA/wax blend on the thermal stability and flammability of ... -
Synergistic effect of interfacial phenomenon on enhancing catalytic performance of Pd loaded MnO: X-CeO2-C hetero-nanostructure for hydrogenation and electrochemical reactions
( Royal Society of Chemistry , 2017 , Article)Hetero-nanostructures have proven to be impressive materials due to their multi-functionalities in various catalytic applications. Here, the basic focus has been devoted to interface chemistry among different domains in ... -
Synergistic effect of reduced graphene oxide layers wrapped in polyaniline sheets to porous blades for boosted oxygen evolution reaction
( Taylor & Francis , 2021 , Article)Electrochemical water splitting is a unique approach for producing renewable energy in hydrogen fuel, though it is limited due to the sluggish kinetics of oxygen evolution reaction (OER). To enhance the efficacy of hydrogen ... -
Synergistic effect of vanadium pentoxide and graphene oxide in polyvinyl alcohol for energy storage application
( Elsevier Ltd , 2016 , Article)A novel ultra-high-k composite material comprising of polyvinyl alcohol (PVA) as a polymer matrix and vanadium pentoxide (V2O5) and graphene oxide (GO) as fillers have been developed successfully using colloidal processing ... -
Synergistic effects and optimization of nitrogen and phosphorus concentrations on the growth and nutrient uptake of a freshwater Chlorella vulgaris
( Taylor and Francis Ltd. , 2017 , Article)The synergistic effects and optimization of nitrogen (N) and phosphorus (P) concentrations on the growth of Chlorella vulgaris (CCAP 211/11B, CS-42) and nutrient removal have been investigated under different concentrations ... -
Synergistic effects of catalytic co-pyrolysis Chlorella vulgaris and polyethylene mixtures using artificial neuron network: Thermodynamic and empirical kinetic analyses
( Elsevier , 2022 , Article)The catalytic pyrolysis of Chlorella vulgaris, high-density polyethylene (Pure HDPE) and, their binary mixtures were conducted to analyse the kinetic and thermodynamic performances from 10 to 100 K/min. The kinetic parameters ... -
Synergistic Erosion-Corrosion Behavior of API X120 Steel
( Elsevier Ltd , 2020 , Conference Paper)The corrosive nature of fluid (oil and gas) and the presence of solid erodent particles in it causes the pipelines to experience severe erosion and corrosion during the transportation process. In this study, erosion-corrosion ... -
Synergistically interactive MnFeM (M = Cu, Ti, and Co) sites doped porous g-C3N4 fiber-like nanostructures for an enhanced green hydrogen production
( Royal Society of Chemistry , 2023 , Article)The use of a synergetic effect is an effective approach for promoting the green hydrogen evolution reaction (HER). However, ternary metal doped porous g-C3N4 fiber-like nanostructures have not been reported so far. Herein, ... -
Synoptic analysis of direct contact membrane distillation performance in Qatar: A case study
( Elsevier B.V. , 2015 , Article)The aim of this study is to evaluate a bench scale direct contact membrane distillation (DCMD) performance using flat sheet polytetrafluoroethylene (PTFE) membrane at different inlet flow rates, temperatures, and salinity ... -
The syntax of the Qatari traditional house: privacy, gender segregation and hospitality constructing Qatar architectural identity
( Taylor and Francis Group , 2022 , Article)Socio-cultural factors are amongst the most prominent forces that reshape the development of housing in Qatar when considering its vernacular architectural history. The research study uses space syntax analysis supported ... -
Synthesis & Performance Evaluation of Hybrid Cathode Materials for Energy Storage
( Qatar University Press , 2021 , Poster)Research into the development of novel cathode materials for energy storage applications is progressing at a rapid rate to meet the ever-growing demands of modern society. Amongst various options, batteries are playing a ... -
Synthesis and Application of Cobalt Oxide (Co3O4)-Impregnated Olive Stones Biochar for the Removal of Rifampicin and Tigecycline: Multivariate Controlled Performance
( MDPI , 2022 , Article)Cobalt oxide (Co3O4) nanoparticles supported on olive stone biochar (OSBC) was used as an efficient sorbent for rifampicin (RIFM) and tigecycline (TIGC) from wastewater. Thermal stabilities, morphologies, textures, and ... -
Synthesis and Application of Cobalt Oxide (Co3O4)-Impregnated Olive Stones Biochar for the Removal of Rifampicin and Tigecycline: Multivariate Controlled Performance
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Cobalt oxide (Co3O4) nanoparticles supported on olive stone biochar (OSBC) was used as an efficient sorbent for rifampicin (RIFM) and tigecycline (TIGC) from wastewater. Thermal stabilities, morphologies, textures, and ... -
Synthesis and biological activity of some new 3-and 6-substituted coumarin amino acid derivatives. Part I
( Wiley-Blackwell , 1981 , Article)The synthesis of 6-nitrocouarrain-3-CO-amino acids and their corresponding methyl esters (II-XVII) and some dipeptide methyl esters (XVIII-XXVI) are described. 6-(N-Tosyl- or N-phthalylaminoacyl)aminocoumarin-3-carboxylic ... -
Synthesis And Biological Activity Of Some New 4-(Aminoacyl) Aminopyridines And 2-(Aminoacyl) Aminopyrimidine Derivatives
( Qatar University , 1983 , Article)The synthesis of 4-(N-Tos and N-Pht-aminoacyI) aminopyridines (III - XIV) and 2-(N-Pht-aminoacyl)-aminopyriniidines (XV-XXIV) has been achieved employing the acid chloride and carbodiimide methods. Hydrazinolysis of ... -
Synthesis and biological activity of some new aminoacylcarbazole derivatives. Part I
( Wiley-Blackwell , 1982 , Article)The syntheses of different 9-(N-phthalyl- or N-tosyl- or free aminoacyl)carbazoles and the corresponding derivatives of 3,6-dinitrocarbazoles and some derivatives of 3,6-diamino-9-(N-phthalylaminoacyl)carbazoles (II-XXXII) ...
