Qatar University Institutional Repository: Recent submissions
Now showing items 21-40 of 26331
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Using ANN to predict post-heating mechanical properties of cementitious composites reinforced with multi-scale additives
( Techno Press , 2022 , Article)This paper focuses on predicting the post-heating mechanical properties of cementitious composites reinforced with multi-scale additives using the Artificial Neural Network (ANN) approach. A total of four different ... -
Sustainable alkali-activated binders with municipal solid waste incineration ashes as sand or fly ash replacement
( Springer Nature , 2022 , Article)The present study investigates the feasibility of using two types of municipality solid wastes incineration ashes, namely, fly ash and bottom ash in the production of sustainable alkali-activated binder. The ashes are ... -
Insights into the interaction between mineral formation and heavy metals immobilization, mediated by Virgibacillus exopolymeric substances
( Elsevier , 2024 , Article)Heavy metal pollution poses significant risks to both the environment and human health due to their toxicity, long residence times, and their ability to bioaccumulate and bio magnify across the food chain. To address this ... -
Ambient and Heat-Cured Geopolymer Composites: Mix Design Optimization and Life Cycle Assessment
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)The feasibility of producing sustainable cement-free composites and its environmental impact were investigated in this research. Experimental parametric evaluation was carried out in this regard to explore the optimum mix ... -
The Association between Lifestyle Factors and COVID-19: Findings from Qatar Biobank.
( MDPI , 2024 , Article)Coronavirus Disease 2019 (COVID-19) manifestations range from mild to severe life-threatening symptoms, including death. COVID-19 susceptibility has been associated with various factors, but studies in Qatar are limited. ... -
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 , Other)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. ... -
Towards robust autonomous driving systems through adversarial test set generation
( ISA - Instrumentation, Systems, and Automation Society , 2023 , Article)Correct environmental perception of objects on the road is vital for the safety of autonomous driving. Making appropriate decisions by the autonomous driving algorithm could be hindered by data perturbations and more ... -
Novel surface-treatment for bottom ash from municipal solid waste incineration to reduce the heavy metals leachability for a sustainable environment
( Elsevier , 2023 , Article)Unconventional treatments can provide a modification to convert ash waste into valuable materials that can be used in various applications. This study focuses on bottom ash (BA) collected from a local incineration plant ... -
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 ... -
Emerging Trends in Virtual Surgical Planning for Orthognathic Surgery: A Global Overview of Research and Publication Patterns
( Elsevier , 2024 , Article)PurposeAnticipating trends and pursuing innovative ideas are imperative for the advancement of science. The objective of this study was to conduct a bibliometric analysis of three-dimensional (3D) virtual simulation in ... -
Assessing value added tax compliance burden in Gulf Cooperation Council countries
( The School of Accounting, Auditing & Taxation is part of the UNSW Business School at UNSW Sydney , 2023 , Article)In 2017, the Gulf Cooperation Council (GCC) member countries (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and United Arab Emirates (UAE)) ratified the Unified Value Added Tax (VAT) Agreement, which set out the general ... -
Artificial intelligence approach to total organic carbon content prediction in shale gas reservoir using well logs: A review
( ICIC International , 2021 , Article)The most important element for the exploration and development of oil and oil shale is total organic carbon (TOC). TOC estimation is considered a challenge for geologists since laboratory methods are expensive and ... -
Attack Mitigation and Security for Vehicle Platoon
( River Publishers , 2022 , Article)This research entails an investigation into enhanced attack detection techniques as a security feature in vehicular platooning. The paper evaluates critical challenges in the security of Vehicular Ad hoc Networks (VANETs) ... -
Assessing the factors that influence the adoption of healthcare wearables by the older population using an extended PMT model
( Elsevier , 2022 , Article)The present study aims to assess the intention of the older population to use healthcare wearable devices (HWDs) for wellness during life-threatening situations like COVID-19. The target population for the study was senior ... -
As you sow, so shall you reap: Assessing drivers of socially responsible investment attitude and intention
( Elsevier , 2022 , Article)Socially responsible investment (SRI) is a form of investment that strives to generate both social and financial rewards for investors. This research seeks to examine the Indian retail investors' investment behaviour towards ... -
Being socially responsible: How green self-identity and locus of control impact green purchasing intentions?
( Elsevier , 2022 , Article)This paper investigates the influence of green self-identity (GSI) and two attributes of locus of control, namely external environmental locus of control (ExLOC) and pro-environmental locus of control (PELOC), to predict ... -
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 ... -
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 ...