Qatar University Institutional Repository: Recent submissions
Now showing items 421-440 of 30884
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Development of self-cleaning superhydrophobic cotton fabric through silica/PDMS composite coating
( Institute of Physics , 2023 , Article)The lotus effect informs that self-cleaning superhydrophobic surfaces can be obtained by creating rough surface structures and modifying them with chemicals that have low surface energy. Herein, the composite of hydrophobic ... -
An Overview of Polymer Composite Films for Antibacterial Display Coatings and Sensor Applications
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article Review)The escalating presence of pathogenic microbes has spurred a heightened interest in antimicrobial polymer composites tailored for hygiene applications. These innovative composites ingeniously incorporate potent antimicrobial ... -
المصالح الحيوية للأمة وشروط الاستجابة الحضارية عند الإمام القرضاوي
( دار نشر جامعة قطر , 2025 , Article)أهداف البحث: يهدف البحث إلى الكشف عن صور الفقه الجماعي في التراث الإسلامي، وجديدها عند الإمام القرضاوي، وكذا الرصد لصور المصالح الحيوية في مختلف مكتوبات القرضاوي، ومحاولة جمعها وتبويبها. وأخيرا البحث عن العلائق المهمة بين ... -
فقه إحياء الأمة عند العلامة الشيخ القرضاوي: قراءة في معالم التجديد ومرتكزاته
( دار نشر جامعة قطر , 2025 , Article)أهداف البحث: إن أهم ما تسعى إليه هذه الدراسة هو إبراز إسهامات العلامة الشيخ يوسف القرضاوي (رحمه الله) في إحياء الأمة من خلال مشروعه الدعوي، وتقريب فكره ومنهجه للقارئ من خلال مسيرته العلمية والعملية. منهج الدراسة: اقتضت ... -
فقه التنزيل عند القرضاوي: قراءة تحليليّة للمنطلق والمنهج
( دار نشر جامعة قطر , 2025 , Article)أهداف البحث: يهدف البحث إلى بيان حضور فقه التنزيل في معالجة قضيّة تطبيق الشّريعة، الّتي تمثّل إحدى القضايا المركزيّة في الدّراسات المعاصرة. وهو ما يستدعي طرح مسألة المنهج في تعامل المعاصرين مع مباحث الاجتهاد، ولعلّ أبرزهم ... -
5,5-Diphenyl-2-thioxoimidazolidin-4-one methodological mechanism to corrosion inhibition for mild steel dissolution in hcl: Dfts, molecular dynamics and experimental procedures
( World Scientific , 2020 , Article)Continuing to study the inhibition of corrosion, 5,5-diphenyl-2-thioxoimidazolidin-4-one (PTI) has been tested as a corrosion inhibitor for mild steel (MS) in an aggressive 1 M HCl solution by chemical and electrochemical ... -
Vibration response of FG-CNT-reinforced plates covered by magnetic layer utilizing numerical solution
( Techno-Press , 2020 , Article)Vibration response in a sandwich plate with a nanocompiste core covered by magnetic layer is presented. The core is armed by functionalyy graded-carbon nanotubes (FG-CNTs) where the Mori-Tanaka law is utilized assuming ... -
Taxation in Qatar - an Abadi (Non-finite) vehicle for economic diversification?
( International Bureau of Fiscal Documentation (IBFD) , 2020 , Article)In December 2018, Qatar introduced a package of tax reforms that represents a major move towards diversifying government revenue and achieving its vision of becoming an advanced country by 2030. This article argues that ... -
3D bioprinted alginate-based biomaterials for bone tissue engineering
( Newlands Press Ltd , 2020 , Article Review)Extensive research works have been carried out on alginate-based 3D bioprinted biomaterials for bone tissue construction for the last three decades. Taking to the commercialization of 3D bioprinted alginate-based tissue ... -
Stochastic management of hybrid AC/DC microgrids considering electric vehicles charging demands
( Elsevier , 2020 , Article)The high growth of the automotive industry reveals the very bright future of this technology and its high penetration effects on the human society. No doubt that the random and volatile charging demand of these devices ... -
Synergistic effects of double-walled carbon nanotubes and nanoclays on mechanical, electrical and piezoresistive properties of epoxy based nanocomposites
( Elsevier , 2020 , Article)Many studies performed on multifunctional properties of epoxy based nanocomposites reinforced with carbon nanotubes (CNTs) and nanoclay (NC) whereas their synergetic effects on piezoresistive behaviour of ternary state ... -
Multilayer Fractional Slot Pole-Phase Modulated Induction Motor Drives for Traction Applications
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)With the advantage of pole-phase modulation (PPM), the multiphase induction motor drives facilitate the enriched range of speed-torque characteristics with a higher number of pole-phase combinations. In order to achieve ... -
Bending behavior of glass fiber reinforced composite overwrapping pvc plastic pipes
( Elsevier , 2020 , Article)The challenge associated with the use of polyvinyl chloride (PVC) plastic pipelines is to improve their structural integrity without increasing their cost. Currently, PVC pipelines are the most cost-effective method of ... -
Special Issue on Robot and Human Interactive Communication 2020
( Robotics Society of Japan , 2020 , Article)We are pleased to announce the special issue on Robot and Human Interactive Communication 2020. The first special issue was published in 2019 to celebrate the promotion of the IEEE International Symposium on Robot and Human ... -
Missing something? A scoping review of venous thromboembolic events and their associations with bariatric surgery. Refining the evidence base
( Elsevier , 2020 , Article Review)Background: Venous thromboembolic events (VTE) post-bariatric surgery (BS) lead to morbidity and mortality. Methods: This scoping review assessed whether reported VTE post-BS could be under/over-estimated; suggested a ... -
An experimental-coupled empirical investigation on the corrosion inhibitory action of 7-alkyl-8-Hydroxyquinolines on C35E steel in HCl electrolyte
( Elsevier , 2020 , Article)Two 8-Hydroxyquinoline-based piperazine, 7-((4-(4-chloro phenyl)piperazin-1-yl) methyl) quinolin-8-ol (CPQ) and 7-((4-methyl piperazin-1-yl) methyl)quinolin-8-ol (MPQ) were prepared, identified and investigated as corrosion ... -
A multi phase-field fracture model for long fiber reinforced composites based on the Puck theory of failure
( Elsevier , 2020 , Article)Phase-Field (PF) methods of fracture have emerged as powerful modeling tools for triggering fracture events in solids. These numerical techniques efficiently alleviate mesh dependent pathologies and are very suitable for ... -
Ultrasmall Metal-Doped CeO2Nanoparticles for Low-Temperature CO Oxidation
( American Chemical Society , 2020 , Article)Ultrasmall ceria (CeO2) and metal-doped CeO2 nanoparticles in the sub-3 nm size regime were synthesized via a facile, single-step, liquid-phase thermal decomposition reaction in a monosurfactant medium, which plays the ... -
Photochemical transformation of diketone dopants in polyester matrices: Effect of dopants concentration and polyester structure on changes in molecular characteristics and hydrolysis of the matrices
( Elsevier , 2020 , Article)Photochemical transformations of photoactive diketone derivatives, 1,2-diphenylethane-1,2-dione (benzil, BZ) and 1,4-bis(benzoylcarbonyl)benzene (bisbenzil, BIS), and the effects of their transformations on changes in the ... -
Crystal growth, single crystal structure, and biological activity of thiazolo-pyridine dicarboxylic acid derivatives
( American Chemical Society , 2020 , Article)Four novel TPDCA derivatives were prepared via a supersaturation method combining TPDCA with water, N-methyl-2-pyrrolidone (NMP), Na(PO2H2), and ammonia solution: 2(C9H7NO5S)H2O (1), (C9H7NO5S)C5H9NO (2), (C9H7NO5S)Na(PO2H2) ...
