Qatar University Institutional Repository: المرسلات الحديثة
السجلات المعروضة 281 -- 300 من 30734
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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) ... -
Critical Appraisal of the Clinical Practice Guidelines for the Management of Dyslipidaemias: Lipid Modification to Reduce Cardiovascular Risk: European Society of Cardiology (ESC) and European Atherosclerosis Society (ESC/EAS) 2019 Guidelines
( Blackwell Publishing Ltd , 2020 , Article)Objective: The aim of the study was to assess the quality of the recently published European clinical practice guidelines for the management of dyslipidaemias, utilizing the refined Appraisal of Guidelines for Research & ... -
Message from the General Chairs
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record. -
التخطيط اللغوي وإشكالات الأمن القومي: نظرة عامة في مقاربات التخطيط*
( دار نشر جامعة قطر , 2024 , Article)تدرس هذه الورقة البحثية الطرق التي استُخدم بها التخطيط اللغوي لمعالجة قضايا الأمن. وتقدم نظرة عامة في مجموعة من مجالات الأمن التي لعب فيها التخطيط اللغوي على المستوى الحكومي دورًا باعتباره وسيلة لتطوير نموذج عمل التخطيط ... -
ما الغاية من وجود المدارس؟*
( دار نشر جامعة قطر , 2024 , Article)تتناول هذه المقالة سؤال: "ما الغاية من وجود المدارس؟" وتُحاج عن أن كل جيل ملزم بالإجابة عنه بنفسه؛ وتُبيِّن أن للمدارس في المجتمعات الحديثة مهمةً متميزةً، وهي تمكين النشء من المفاهيم التي تجعلهم قادرين على تجاوز حدود تجربتهم ... -
A novel symmetric image cryptosystem resistant to noise perturbation based on S8 elliptic curve S-boxes and chaotic maps
( Springer Science and Business Media Deutschland GmbH , 2020 , Article)The recent decade has seen a tremendous escalation of multimedia and its applications. These modern applications demand diverse security requirements and innovative security platforms. In this manuscript, we proposed an ... -
Informing the sustainable pursuit of happiness
( MDPI , 2020 , Article)Although most people want to be happy, the pursuit of happiness involves an overwhelming number of choices and great uncertainty about the consequences. Many of these choices have significant implications for sustainability, ... -
A novel approach to improve the performance of solar-driven Stirling engine using solar-driven ejector cooling cycle
( John Wiley and Sons Ltd , 2020 , Article)In this paper, a novel system to enhance the performance of a solar-driven finite speed alpha-type Stirling engine is proposed and evaluated. Part of the concentrated solar energy is used to drive an ejector refrigeration ... -
The effect of family literacy programs on the development of children's early literacy in kindergarten settings
( Elsevier , 2020 , Article)The present study was conducted to investigate the effect of family literacy programs on developing kindergarten children's early literacy skills in Qatar. Three hundred and twenty kindergarten children (166 girls and 154 ... -
Synthesis, Characterisation, and Antimicrobial Efficacy of Acid Fuchsin Schiff Base-Modified Silver Nanoparticles
( Pleiades journals , 2020 , Article)Abstract: In the current work, silver nanoparticles (AgNPs) were green synthesized using starch and modified with anionic dye (acid fuchsin) and aldehyde (salicylaldehyde and cinnamaldehyde). Thus in situ formation of ... -
Top management inside debt and corporate social responsibility? Evidence from the US
( Elsevier , 2020 , Article)This study provides evidence on the relationship between CEO inside debt and corporate social responsibility (hereinafter, CSR). We find that an increase in CEO inside debt leads to high levels of CSR. This finding is ...
