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السجلات المعروضة 1014 -- 1033 من 1300
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Recent Developments on 4D Printings and Applications
( Springer International Publishing , 2022 , Book chapter)The new generation of 3D printing is known as four-dimensional (4D) printing technology that involves the printing of complex geometries with smart materials. The rise of 4D technological developments leads to finding ... -
Recent Progress in WS2 -Based Nanomaterials Employed for Photocatalytic Water Treatment
( MDPI , 2022 , Article Review)Water pollution is one of the most serious environmental issues globally due to its harmful consequences on the ecosystem and public health. Various technologies have been developed for water treatment such as photocatalysis, ... -
Recent progress, challenges, and perspectives in the development of solid-state electrolytes for sodium batteries
( Elsevier , 2023 , Article)Sustainable energy storage technologies, such as all-solid-state sodium batteries, are seen as a promising field of research. The high energy and power densities of all-solid-state sodium batteries, together with their low ... -
Recent Trends in Applications of X-ray Photoelectron Spectroscopy (XPS) Technique in Coatings for Corrosion Protection
( Springer International Publishing , 2022 , Book chapter)Corrosion-primarily a surface phenomenon, strongly influences an asset's performance, durability, and reliability, as costs of corrosion-related repairs and refurbishment can run into millions of dollars. Notably, in the ... -
Recycled polyethylene/paraffin wax/expanded graphite based heat absorbers for thermal energy storage: An artificial aging study
( MDPI AG , 2019 , Article)An artificial aging study of novel heat absorbers based on phase change materials (PCMs) prepared from recycled high-density polyethylene (HDPE), paraffin wax (PW), and expanded graphite (EG) was investigated. The optimal ... -
Recycling of Tetra Pak for Space and Water Heating by Blending with Phase Change Materials
( Qatar University Press , 2023 , Conference Paper)A rapid rise in demands for thermal comfort in the building sector necessitates higher energy consumption for air conditioning, ventilation, space, and water heating systems. Recently, phase change materials (PCMs) have ... -
Reduced erbium-doped ceria nanoparticles: One nano-host applicable for simultaneous optical down- and up-conversions
( Springer Nature , 2014 , Article)This paper introduces a new synthesis procedure to form erbium-doped ceria nanoparticles (EDC NPs) that can act as an optical medium for both up-conversion and down-conversion in the same time. This synthesis process results ... -
Reduced graphene oxide filled poly(dimethyl siloxane) based transparent stretchable, and touch-responsive sensors
( American Institute of Physics Inc. , 2016 , Article)The ongoing revolution in touch panel technology and electronics demands the need for thin films, which are flexible, stretchable, conductive, and highly touch responsive. In this regard, conductive elastomer nanocomposites ... -
Reduced titania nanorods and Ni–Mo–S catalysts for photoelectrocatalytic water treatment and hydrogen production coupled with desalination
( Elsevier , 2020 , Article)This study presents a ternary hybrid solar desalination process coupled with photoelectrocatalytic water treatment and H2 production in a single device. The desalination of brackish water in the desalination cell is initiated ... -
Reduction in piezoelectric voltage generation for the cerium doped nickel ferrite nanoparticles filled PVDF-HFP nanocomposites
( Elsevier B.V. , 2019 , Article)This paper describes the synthesis of grape cluster shaped nickel ferrite (NiFe 2 O 4 ) and cerium doped nickel ferrite (Ce-NiFe 2 O 4 ) nanoparticles by chemical co-precipitation and their addition to poly(vinylidene ... -
Reinforced Concrete Degradation in the Harsh Climates of the Arabian Gulf: Field Study on 30-to-50-Year-Old Structures
( American Society of Civil Engineers (ASCE) , 2018 , Article)This paper presents the results of a field study carried out on three reinforced concrete (RC) structures built in the 1960s, 1970s, and 1980s to determine the main load (environmental) and the resistance (for example, the ... -
Reinforcement of copolyamide membranes for water treatment applications
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Clean water is the key element for all living organisms to sustain life. However, due to the rapid industrialization and large increase in the population, the contamination of water resources is important issue occurred ... -
Remarkable improvement in properties of NI-B coatings by the addition of mixed oxide nanoparticles
( Association for Iron and Steel Technology, AISTECH , 2015 , Conference Paper)A comparison of properties of Ni-B and Ni-B-ZrO2-Al2O3 nanocomposite coatings synthesized through electrodeposition process is presented to elucidate the beneficial role of addition of mixed nanoparticles of ZrO2 and Al2O3 ... -
Removal of Lead Ions from Aqueous Solutions Using Polyaniline Polystyrene Nanocomposites
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Water pollution is an issue of grave importance worldwide, especially in countries that boast of a large number of industries. High concentration of heavy metal ions such as lead, nickel, etc are often found in industrial ... -
Removal of metronidazole from wastewater by Fe/charcoal micro electrolysis fluidized bed reactor
( Elsevier Ltd , 2019 , Article)The aim of the research was to investigate the removal of metronidazole from aqueous solutions by Fe/charcoal micro-electrolysis fluidized bed reactor. The effective variables influencing the metronidazole removal including ... -
Repair of Heat-Damaged RC Beams Using Micro-concrete Modified with Carbon Nanotubes
( Korean Society of Civil Engineers , 2021 , Article)This paper investigates the use of micro-concrete modified with carbon nanotubes (CNTs) for the repair of heat-damaged reinforced concrete (RC) beams. Ten RC beams were cast and then subjected to elevated temperature of ... -
Revealing of Core Shell Effect on Frequency-Dependent Properties of Bi-based Relaxor/Ferroelectric Ceramic Composites.
( Nature Research , 2018 , Article)In this study, electromechanical characteristics of (1-x) BiNaTiO-xSrTiO (ST26, x = 0.26)/(1-y) BiNaTiO-ySrTiO (ST10, y = 0.1) (matrix/seed) composites were studied. The ST26 (high relaxor phase) and ST10 (a relaxor ... -
Revealing the improved sensitivity of PEDOT:PSS/PVA thin films through secondary doping and their strain sensors application
( Royal Society of Chemistry , 2023 , Article)The field of strain sensing involves the ability to measure an electrical response that corresponds to a strain. The integration of synthetic and conducting polymers can create a flexible strain sensor with a wide range ... -
Reverse osmosis seawater desalination: Qatar experience and vision
( Desalination Publications , 2020 , Other)[No abstract available] -
Reverse Osmosis Systems: Design, Optimization and Troubleshooting Guide
( Elsevier , 2021 , Book)Reverse Osmosis Systems: Design, Optimization and Troubleshooting Guide describes in depth knowledge of designing and operating reverse osmosis (RO) systems for water desalination, and covers issues which will effect the ...