Research Units: المرسلات الحديثة
السجلات المعروضة 1361 -- 1380 من 5880
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Thermal behavior and post-heating fracture characteristics of polypropylene microfiber-reinforced geopolymer binders
( Elsevier , 2022 , Article)This paper investigated the post-heating behavior of fly ash-based geopolymer binders reinforced with polypropylene (PP) microfibers. Geopolymer binders with different fiber contents including 0%, 0.05%, 0.1%, and 0.2% by ... -
Development of sustainable geopolymer composites for repair application: Workability and setting time evaluation
( Elsevier , 2023 , Article)One of the most used construction materials worldwide is concrete. It has a lot of advantages over the other construction materials. However, the production process of concrete produces a huge amount of carbon dioxide. ... -
Cybersecurity of multi-cloud healthcare systems: A hierarchical deep learning approach
( Elsevier Ltd , 2022 , Article)With the increase in sophistication and connectedness of the healthcare networks, their attack surfaces and vulnerabilities increase significantly. Malicious agents threaten patients’ health and life by stealing or altering ... -
The role of polypropylene microfibers in thermal properties and post-heating behavior of cementitious composites
( Multidisciplinary Digital Publishing Institute (MDPI) , 2020 , Article)This paper experimentally studied the effect of polypropylene (PP) microfibers on thermal and post-heating mechanical behaviors of cementitious composites. Cement mortars with small dosage of polypropylene fibers were ... -
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 ... -
Hybrid effect of carbon nanotubes and polypropylene microfibers on fire resistance, thermal characteristics and microstructure of cementitious composites
( Elsevier , 2020 , Article)The current study experimentally investigates the hybrid effect of carbon nanotubes (CNTs) and polypropylene (PP) microfibers on fire resistance and thermal characteristics of cementitious composites. Cement mortar with ... -
Influence of carbon nanotubes on phase composition, thermal and post-heating behavior of cementitious composites
( Multidisciplinary Digital Publishing Institute (MDPI) , 2021 , Article)This paper experimentally investigates the influence of carbon nanotubes (CNTs) on phase composition, microstructure deterioration, thermal behavior, and residual mechanical strengths of cementitious composites exposed to ... -
Microstructure and mechanical behavior of cementitious composites with multi-scale additives
( Techno Press , 2021 , Article)This paper studies the effect of using multi-scale reinforcement additives on mechanical strengths, damage performance, microstructure, and water absorption of cementitious composites. Small dosages of carbon nanotubes ... -
Machine learning for the security of healthcare systems based on Internet of Things and edge computing
( Elsevier , 2022 , Book chapter)Using the Internet of Medical Things (IoMT) for treatment and diagnosis has exponentially grown due to its diverse use cases and efficient planning with defined resources. IoMT in the e-healthcare system enables continuous ... -
Effect of carbon nanotubes on the bonding mechanism of non-corrosive reinforcements to concrete
( Elsevier , 2024 , Article)This study aimed to assess the impact of waterborne pre-dispersed multiwall carbon nanotubes (MWCNTs) at a concentration of 0.2 wt % on the bond strength between concrete and non-corrosive reinforcements, including stainless ... -
من أزمة العقل المسلم إلى أزمة التربية والوجدان والرؤية الحضارية: قراءة في مشروع الإصلاح لدى عبد الحميد أبو سليمان
( Islamic Research Institiute, International Islamic University, Islamabad , 2024 , Article)تتخذ هذه الورقة موضوعا لها مشروع الإصلاح لدى عبد الحميد أبي سليمان، وتهدف إلى تقديم قراءة لهذا المشروع والنظر في أبعاده الفكرية المنهجية، والتربوية، والمعرفية. ولتحقيق هدفها اعتمدت على منهج تحليل محتوى كتبه المحورية؛ "أزمة ... -
Development of flexible PVDF/ BaTiO3-MoS2 polymer nanocomposites for energy harvesting and gas sensing applications
( Springer Nature , 2024 , Article)The need for flexible and wearable devices is quite great in the modern era of advanced electronics and the Internet of Things (IoT). Here, we present a poly(vinylidene fluoride) (PVDF)/Barium Titanate–Molybdenum Disulfide ... -
محددات الطلب على القروض الاستهلاكية في قطر
( جامعة حسيبة بن بوعلي شلف , 2023 , Article)في ضوء التوسع الكبير الذي شهدته القروض الأسرية في قطر في الآونة الأخيرة، هدفت هذه الدراسة إلى تحديد العوامل المؤثرة في الطلب على القروض الاستهلاكية. باستخدام بيانات مقطعية جُمعت من 246 مشاركًا واعتماد أساليب الاقتصاد ... -
Impact of indirect taxes on CO2 emissions in the presence of institutional quality: evidence from a global panel data analysis
( Emerald Publishing Limited , 2023 , Article)Purpose: Despite the importance of tax policy in reducing energy consumption and carbon emissions, there is a dearth of research on the environmental impact of indirect taxes. This paper examines the impact of indirect ... -
Advancing sustainable performance management in the hospitality industry: A novel framework based on a health-inclusive balanced scorecard
( Elsevier B.V. , 2023 , Article)Sustainable tourism garnered interest as the United Nations set goals that could be met by the tourism industry. However, sustainability performance metrics have been peripheral in the hospitality industry. This study ... -
What scientists need to do to accelerate progress on the SDGs
( Nature Research , 2023 , Article)Drilling down into why the UN Sustainable Development Goals are so hard to achieve, and showing policymakers pathways to follow, will help the planet and save lives. [Figure not available: see fulltext.]. -
Fractionation and phytochemical composition of an ethanolic extract of Ziziphus nummularia leaves: antioxidant and anticancerous properties in human triple negative breast cancer cells
( Frontiers Media , 2024 , Article)Natural products have long been utilized in traditional medicine as remedies to improve health and treat illnesses, and have had a key role in modern drug discovery. Recently, there has been a revived interest in the search ... -
من ضيق التخصص إلى أفق التكامل (دراسة في تجارب التحول المعرفي من الطبيعي إلى الاجتماعي)
( كلية العلوم الإنسانية والاجتماعية في بيروت - لبنان , 2023 , Article)تهدف الدراسة إلى استكشاف تجربة التحول المعرفي من العلوم الطبيعية إلى العلوم الاجتماعية، وما تشكّل لدى أصحابها من خبرة فريدة في التعاطي المباشر مع تخصصين من مجالين مختلفين، ومعاينة أثرها على المستويات الشخصية والعلمية ... -
بنية الأسرة القطرية ووظائفها: التوازن بين التقليد والحداثة
( عمادة البحث العلمي - الجامعة الأردنية , 2023 , Article)الأهداف: تهدف الدراسة إلى استكشاف واقع بنية الأسرة القطرية، ووظائفها والأدوار الاجتماعية، وقياس بعض السلوكات التي تعكس فهما حداثيًا أو تقليديًا للأسرة، ومعرفة فيما لو حدثت تحولات في موقف القطريين من الأسرة، وطبيعة تلك ... -
التصورات الاجتماعية للأسرة في المجتمع القطري
( صندوق البحث العلمي - الجامعة الأردنيّة , 2023 , Article)تهدف هذه الدراسة إلى استكشاف طبيعة التصورات التي يحملها القطريون للأسرة، ومعرفة ما هو المركزي منها وما هو المحيطي، وكذلك معرفة مصادر تلك التصورات. اعتمدت الدراسة منهجًا مختلطًا، استخدمت فيه أداة الاستبانة لجمع بيانات نوعية ...
