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السجلات المعروضة 1396 -- 1415 من 4726
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Elderly Care in the GCC: Family Experiences with Assistive Technology
( Gulf Studies center - College of Arts & Sciences - Qatar University , 2023 , Conference Paper)Elderly care is a significant concern in the GCC region, especially with the increasing older population. The talk will delve into the experiences of families in the GCC, particularly in Qatar, with the use of Assistive ... -
Electrical and Electromagnetic Interference (EMI) shielding properties of hexagonal boron nitride nanoparticles reinforced polyvinylidene fluoride nanocomposite films
( Taylor and Francis Inc. , 2019 , Article)The hexagonal boron nitride nanoparticles (h-BNNPs) reinforced flexible polyvinylidene fluoride (PVDF) nanocomposite films were prepared via a simple and versatile solution casting method. The morphological, thermal and ... -
Electrical characteristics and density of states of thin-film transistors based on sol-gel derived ZnO channel layers with different annealing temperatures
( American Institute of Physics Inc. , 2018 , Article)We report on the fabrication and electrical characterization of bottom gate thin-film transistors (TFTs) based on a sol-gel derived ZnO channel layer. The effect of annealing of ZnO active channel layers on the electrical ... -
Electrical Conductivity Behavior of Biopolymer Composites
( Elsevier Inc. , 2017 , Book chapter)Interest in the study of biopolymer system has been continuously growing as a result of a variety of promising applications such as in electronics, medicine, food packaging, bioplastics, and coating. Characteristics such ... -
Electrical equivalent circuit (EEC) based impedance spectroscopy analysis of HTM free perovskite solar cells
( Elsevier , 2020 , Article)Monolithic perovskite solar cells (mPSCs) are the multi-layered organic-inorganic hybrid cells that have been focused due to the affordable cost, ease of fabrication, and noteworthy power conversion efficiency (PCE). In ... -
Electrically conductive composites based on an elastomeric matrix filled with expanded graphite as a potential oil sensing material
( Institute of Physics Publishing , 2014 , Article)The preparation and properties of electrically conductive polymeric composites based on an elastomer matrix (styrene-isoprene styrene block copolymer) filled with expanded graphite are reported in this paper. The developed ... -
Electrically conductive electrospun polymeric mats for sensing dispersed vegetable oil impurities inwastewater
( MDPI AG , 2019 , Article)This paper addresses the preparation of electrically conductive electrospun mats on a base of styrene-isoprene-styrene copolymer (SIS) and multiwall carbon nanotubes (CNTs) and their application as active sensing elements ... -
Electrically conductive, transparent polymeric nanocomposites modified by 2D Ti3C2Tx (MXene)
( MDPI AG , 2019 , Article)The electrically conductive, transparent, and flexible self-standing thin nanocomposite films based on copolyamide matrix (coPA:Vestamelt X1010) modified with 2D Ti3C2Tx (MXene) nanosheets were prepared by casting and their ... -
Electro-sprayed PVA coating with texture-enriched surface morphology for augmented humidity sensing
( Elsevier B.V. , 2018 , Article)This article reports the modified surface morphology of Poly-vinyl Alcohol (PVA) films using electro-spraying coating technique. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) were conducted to examine ... -
Electroactive and Optically Adaptive Bionanocomposite for Reconfigurable Microlens
( American Chemical Society , 2016 , Article)This paper introduces an electroactive bionanocomposite based on poly(diethylene glycol adipate) (PDEGA) and cellulose nanocrystals (CNCs). The bionanocomposites were made using CNCs extracted from cotton and by optimizing ... -
Electrocatalytic activity of nanoparticulate TiO2 coated onto Ta-doped IrO2/Ti substrates: Effects of the TiO2 overlayer thickness
( Elsevier , 2021 , Article)The trade-off between short-term efficiency and long-term durability in electrocatalysis has always been a tough choice. This study examines the electrocatalytic activity of double-layered oxide electrodes comprising a ... -
Electrocatalytic arsenite oxidation in bicarbonate solutions combined with CO2 reduction to formate
( Elsevier , 2020 , Article)Sunlight-driven water-energy nexus technologies are receiving increasing attention. This study presents a hybrid electrochemical system that catalyzes the oxidation of As(III) to As(V) with a nanoparticulate TiO2 electrocatalyst ... -
Electrocatalytic arsenite oxidation using iron oxyhydroxide polymorphs (α-, β-, and γ-FeOOH) in aqueous bicarbonate solution
( Elsevier , 2020 , Article)α-, β-, and γ-FeOOH polymorphs have been synthesized and used for electrocatalytic As(III) oxidation into less toxic As(V) in aqueous bicarbonate solution. As-synthesized FeOOH electrodes exhibit unique crystalline structures ... -
Electrocatalytic CO oxidation on porous ternary PdNiO-CeO2/carbon black nanocatalysts: Effect of supports and electrolytes
( Elsevier , 2023 , Article)The catalytic activity and durability of porous ternary Pd-based electrocatalysts are augmented by alloying with other metals and using supports, however, the effect of supports and electrolytes at varied pH on the ... -
Electrocatalytic cogeneration of reactive oxygen species for synergistic water treatment
( Elsevier B.V. , 2019 , Article)This study examines the co-generation effect of hydroxyl radicals (OH) via water oxidation and H2O2 via O2 reduction in electrocatalytic processes with Sb-doped SnO2 (SS) anode and carbon nanotube (CNT) cathode pairs facing ... -
Electrochemical Analyses of Sodium based Mixed Pyrophosphate Cathodes for Rechargeable Sodium Ion Batteries
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Lithium ion batteries (LIB) are widely applied to energy storage systems, like electric vehicles, ships. While limited reserves of lithium and cost of lithium enforced to explore new materials. Hence, Low cost and abundance ... -
Electrochemical and thermodynamic study on the corrosion performance of API X120 steel in 3.5% NaCl solution
( Nature Research , 2020 , Article)The present work studied the effect of temperature on the corrosion behavior of API X120 steel in a saline solution saturated with CO2 in absence and presence of polyethyleneimine (PEI) as an environmentally safe green ... -
Electrochemical and X-ray photoelectron spectroscopic investigations of conductive polymers
( Springer Nature , 2019 , Article)We report the synthesis of high soluble poly(aniline-co-o-hydroxyaniline) copolymers with varying the amount of o-hydroxyaniline (20, 40, 60, and 80 %) and referred as PA-co-o-HA20, PA-co-o-HA40, PA-co-o-HA60, and PA-co-o-HA80 ... -
Electrochemical behavior of mild and corrosion resistant concrete reinforcing steels
( Elsevier , 2020 , Article)An experimental study is carried out in this paper to evaluate the corrosion performance of mild steel reinforcing bars (MS), high strength steel reinforcing bars (HS), epoxy-coated steel reinforcing bars (EC), and ... -
Electrochemical corrosion parameters for active and passive reinforcing steel in carbonated and sound concrete
( John Wiley and Sons Inc , 2021 , Article)The electrochemical corrosion parameters, such as corrosion potential, corrosion current density, and the Tafel constants are necessary inputs for the corrosion modeling in reinforced concrete. Literature shows large ...
