Qatar University Institutional Repository
The top service priorities of QSpace are to collect materials originating from faculty, students, and guests of Qatar University, provide necessary metadata to fulfill a complete bibliographic record, provide open access full-text content to everyone, and preserve content in a secure format for long-term continued access.
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Recent Submissions
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The Effect of Foreign Language Reading Anxiety on Jordanian EFL Teachers' Orientation and Strategy Use
( دار نشر جامعة قطر , 2024 , Article)Using the Foreign Language Reading Anxiety Scale (FLRAS), this study explores the core determinants of reading anxiety among Jordanian EFL teachers. It investigates the correlation between anxiety factors and strategy ... -
فاعلية برنامج إرشادي لتنمية المهارات التعبيرية والتفاعُل الاجتماعي لدى أطفالِ ما قَبل المدرَسة
( Qatar University Press , 2024 , Article)هدفت الدراسةُ إلى الكشف عن فاعلية برنامج إرشادي في تنمية المهارات التعبيرية والتفاعل الاجتماعي لدى عينة من أطفال ما قبل المدرسة، وتحدَّدت خمسُ مهارات لتنميتها، هي: المهارات التعبيرية اللغوية، وتكوين الصداقات، والتعبير عن ... -
Carica Papaya leaf-infused metal oxide nanocomposite: a green approach towards water treatment and antibacterial applications
( Springer , 2024 , Article)This study successfully synthesized ZnO–CuO nanocomposite using the hydrothermal method with Carica papaya leaf extract. The incorporation of the leaf extract significantly enhanced the nanocomposite properties, a novel ... -
Effect of AlN on the Mechanical and Electrochemical Properties of Aluminum Metal Matrix Composites
( MDPI , 2024 , Article)In the present investigation, aluminum metal matrix composites (AMMs) reinforced with aluminum nitride (AlN) nanoparticulates at different volumetric ratios of (0, 0.5, 1, 1.5, and 2 vol.%) were manufactured via a ... -
Catalytic Valorisation of Biomass-Derived Levulinic Acid to Biofuel Additive γ-Valerolactone: Influence of Copper Loading on Silica Support
( MDPI , 2023 , Article)γ-valerolactone (GVL) is a crucial chemical feedstock used in the production of fuel additives, renewable fuels, and fine chemicals alternative to petroleum-based solvents and chemicals, supporting the transition to ... -
Role of the intercalated ions on the high capacitance behavior of Ti 3 C 2 Tx MXene nanohybrids
( Taylor and Francis Ltd. , 2023 , Article)Ti3C2Tx (MXene) is prone to surface oxidation because of the presence of oxygen surface terminals in its surfaces. In this work, the effect of oxygen surface terminals has been reduced by replacing it with other surface ... -
Iron--Based Catalysts for Fischer-Tropsch Synthesis for Light Olefins Production from Syngas
( CRC Press , 2024 , Book chapter)Catalytic conversion of syngas (a mixture of hydrogen and carbon monoxide) into valuable hydrocarbon products, particularly light olefins (C2=-C4=), holds significant importance in the realm of sustainable and clean energy ... -
Superhydrophobic and corrosion behavior of electrospun PVDF-ZnO coating
( Electrochemical Society Inc. , 2014 , Conference Paper)Corrosion is of considerable concern whenever metals and alloys are used in constructions, petroleum and gas pipelines. The present article was undertaken to investigate the hydrophobicity and corrosion resistance of PVDF ... -
Synthesis and properties of electroless Ni-P-HfC nanocomposite coatings
( Elsevier , 2022 , Article)This work reports the development and characterization of Ni–P coatings with varying concentrations of hafnium carbide nanoparticles (HCNPs). Novel Ni–P-HCNPs nanocomposite coatings were developed on the A36 carbon steel ... -
Progress, challenges, and opportunities of two-dimensional layered materials based electrochemical sensors and biosensors
( Elsevier , 2022 , Article Review)Advances in nanotechnology have prompted the use of various types of nanomaterials as excellent electrode materials for enhancing electrochemical detection in terms of electrocatalytic activity, sensitivity, selectivity, ... -
A focused review of the hydrogen storage tank embrittlement mechanism process
( Elsevier , 2023 , Article Review)Hydrogen embrittlement is a widely known phenomenon in high-strength and storage materials. Hydrogen embrittlement is responsible for subcritical crack growth in material, fracture initiation, subsequent loss in mechanical ... -
Non-covalent functionalization of surfactant-assisted graphene oxide with silver nanocomposites for highly efficient photocatalysis and anti-biofilm applications
( Elsevier , 2024 , Article)This study presents a comprehensive investigation on the synthesis and characterization of surfactant-assisted graphene oxide non-covalent functionalized silver nanocomposites (rGS-AgNPs) for achieving remarkable photocatalytic ... -
Environmental factors affecting the corrosion behaviour of reinforcing steel. VI. Benzotriazole and its derivatives as corrosion inhibitors of steel
( Elsevier , 2014 , Article)Benzotriazole and some of its derivatives cause inhibition of corrosion of reinforcing steel in saturated naturally aerated Ca(OH)2 solutions contaminated by Cl−. The inhibition efficiency of these compounds depends on ... -
Electrochemical Investigation of C-Steel Corrosion Inhibition, In Silico, and Sulfate-Reducing Bacteria Investigations Using Pyrazole Derivatives
( American Chemical Society , 2023 , Article)The inhibitory impact of the two synthesized pyrazole derivatives (3 and 4) toward metallic and microbial corrosion was investigated. Using open circuit potential, potentiodynamic polarization, and electrochemical impedance ... -
Failure analysis of 316L air cooler stainless steel tube in a natural gas production field
( Elsevier , 2015 , Article)In spite of the excellent resistance of stainless steel (SS) towards uniform corrosion, overcoming various localized corrosion could be a real challenge. This work presents an analysis of the failure behavior of 316L SS ... -
هُويَّة الذات الافتراضية وعلاقتها بتقدير الذات لدى طلاب الجامعةِ في ظل جائحةِ كورونا
( Qatar University Press , 2024 , Article)هدفت الدراسةُ إلى التحقُّق من البنية والمصداقية لمقياس هوية الذات الافتراضية في علاقتها بتقدير الذات لدى طلاب الجامعة في ظل جائحة كورونا في المجتمع العربي. اختيرت عينة متاحةٌ للدراسة، وتكونت من 243 طالبًا وطالبة من طلاب ... -
مستوى مشاركة أولياء أمور التلاميذ ذوي الإعاقةِ العقلية في إعداد البرنامج التربوي الفردي في المملكةِ العربية السعودية - دراسةٌ نوعية
( Qatar University Press , 2024 , Article)هدفت هذه الدراسةُ إلى التحقُّق من مستوى مشاركة أولياء أمور التلاميذ ذوي الإعاقة العقلية في البرنامج التربوي الفردي، ومعوقات هذه الشراكة. طَبَّقت هذه الدراسة المنهج الوصفيَّ النوعيَّ الذي يساعد الباحث في الوصول إلى مشكلة ... -
تصوُّراتُ المعلمين حول كفاءتِهم الذاتيةِ في التَّعليم عن بُعدٍ وعلاقتُها بممارساتِهم التدريسية في الفصولِ الافتراضية بسَلطنةِ عُمان
( Qatar University Press , 2024 , Article)هدفت الدراسةُ إلى التعرُّف على تصورات المعلمين حول كفاءتهم الذاتية في التعليم عن بعد، وعلاقتها بممارساتهم التدريسية في الفصول الافتراضية. ولتحقيق أهداف الدراسة أعدَّ الباحثون مقياسًا لتصورات المعلمين، وبطاقة ملاحظة للممارسات ... -
الكفاياتُ اللازمة في تكنولوجيا المعلومات والاتصالات لمعلم مراحلِ التعليمِ العام بمدارس دَولةِ قطر من وجهةِ نظر معلِّمِ الحاسوب
( Qatar University Press , 2024 , Article)هدفت الدراسةُ الاستطلاعية إلى التعرُّف على أهم الكفايات اللازمة في تكنولوجيا المعلومات والاتصالات ICT التي يجب أن تتوفر لدى معلم مراحل التعليم العام بمدارس دولة قطر من وجهة نظر معلمي الحاسوب بهذه المراحل، وعلى أثر المتغيرات ... -
Can dynamic pricing make femto users and service providers happy?
( IEEE Computer Society , 2013 , Conference Paper)Femtocell is a promising technology that will improve wireless resources efficiency through frequency spatial reuse however, its integration with the current cellular systems has been considered a fundamental challenge. ...
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