Research Units: Recent submissions
Now showing items 801-820 of 5213
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Seasonal and body size-dependent variability in the bioaccumulation of PAHs and their alkyl homologues in pearl oysters in the central Arabian Gulf
( Elsevier , 2022 , Article)Spatiotemporal concentration patterns for 19 parents and their alkyl homologues were measured in Pinctada radiata from 7 locations in the central Arabian Gulf around Qatar in the winter, spring and summer (2014–2015). The ... -
Microstructure and mechanical behavior of hot extruded aluminum/tin-bismuth composites produced by powder metallurgy
( MDPI AG , 2020 , Article)In this study, Al-BiSn composites were synthesized by a combination of microwave sintering and hot extrusion processes. The structural, morphological, mechanical, and thermal properties were investigated to elucidate the ... -
Polymeric smart coatings containing modified capped halloysite nanotubes for corrosion protection of carbon steel
( Springer , 2023 , Article)A newly designed smart self-healing epoxy coating system comprised of modified halloysite nanotubes (HNTs) having capping is proposed for corrosion protection of steel. In the first step, HNTs were loaded with 8-hydroxyquinoline ... -
Recent Trends in Applications of X-ray Photoelectron Spectroscopy (XPS) Technique in Coatings for Corrosion Protection
( Springer International Publishing , 2022 , Book chapter)Corrosion-primarily a surface phenomenon, strongly influences an asset's performance, durability, and reliability, as costs of corrosion-related repairs and refurbishment can run into millions of dollars. Notably, in the ... -
Development and Properties of Amorphous Particles Reinforced Al Matrix Nanocomposites
( Elsevier , 2021 , Book chapter)Aluminum metal matrix composites (AMMCs) fabricated by reinforcing aluminum matrix with ceramic particles have received considerable attention because of their superior properties over monolithic aluminum matrix. However, ... -
Watermarking: A review of software and hardware techniques
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Watermarking is a well-known technique traditionally used in banknotes and other documents to discourage counterfeiting. It usually consists of semi-transparent symbols embedded on paper. Similar concepts were applied to ... -
A Practical Universal Consortium Blockchain Paradigm for Patient Data Portability on the Cloud Utilizing Delegated Identity Management
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)This paper presents a blockchain system that exploits the base modular features of the Hyperledger Fabric framework to allow for a new, patient-centric, practical data portability paradigm. The system empowers patients by ... -
Design and Implementation of a Threat-Specific Security Risk Assessment Tool
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)Security threats posed to individual cloud computing clients vary depending on their specific security requirements. However, Cloud Providers apply generic security risk assessment approaches which result do not consider ... -
Threat-specific security risk evaluation in the cloud
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Existing security risk evaluation approaches (e.g., asset-based) do not consider specific security requirements of individual cloud computing clients in the security risk evaluation. In this paper, we propose a threat-specific ... -
Quantifying Satisfaction of Security Requirements of Cloud Software Systems
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Article)The satisfaction of a software requirement is commonly stated as a Boolean value, that is, a security requirement is either satisfied (true) or not (false). However, a discrete Boolean value to measure the satisfaction ... -
Electrochemical and X-ray photoelectron spectroscopic investigations of conductive polymers
( Springer Nature , 2019 , Article)We report the synthesis of high soluble poly(aniline-co-o-hydroxyaniline) copolymers with varying the amount of o-hydroxyaniline (20, 40, 60, and 80 %) and referred as PA-co-o-HA20, PA-co-o-HA40, PA-co-o-HA60, and PA-co-o-HA80 ... -
Oncolytic viruses as nanomedicines against the tumor microenvironment
( AMG Transcend Association , 2021 , Article Review)The tumor microenvironment is best described as the battleground for fighting cancer and the host immune system. Contrary to primitive beliefs that cancer growth and progression are solely dependent on cancer cells, recent ... -
Estimating protection afforded by prior infection in preventing reinfection: Applying the test-negative study design.
( Oxford University Press , 2023 , Article)The COVID-19 pandemic has highlighted the need to use infection testing databases to rapidly estimate effectiveness of prior infection in preventing reinfection ($P{E}_S$) by novel SARS-CoV-2 variants. Mathematical modeling ... -
Enhancing the electrochemical performance of hybrid supercapacitors with in-situ grown ultrasound-mediated heterostructure bi-metallic and dual-linker MOF nanoarchitecture by harnessing charge storage mechanisms
( Elsevier , 2024 , Article)In the present technological era, energy storage devices like batteries and supercapacitors hold immense importance, and their hybrid variants have gained notable interest. The aim of this study was to develop a dual-linker ... -
جائحة كورونا وتطبيقات تتبّع الاتصال الرقمي: دراسة في التصورات الاجتماعية حول تطبيق احتراز في قطر باستخدام أسلوب التداعي الحر
( جامعة الوادي , 2024 , Article)هدفت الدراسة إلى التعرف على التصورات الاجتماعية التي يتبناها المجتمع حول تطبيق تتبُع الاتصال الرقمي القطري "احتراز"، ومعرفة مدى اختلاف التصورات تبعاً للخصائص الديموغرافية والاجتماعية، مثل: الجنس، والعمر، والمستوى التعليمي. ... -
درس النصرانية عند الباقلاني من خلال كتابه "التمهيد": مناقشة لمسائل الجوهر والأقانيم والاتحاد
( الجامعة الإسلامية العالمية بماليزيا , 2024 , Article)يهدف هذا البحث إلى تحليل نص كتاب "التمهيد" للباقلاني بالتركيز على تناوله للعقائد النصرانية في إطار درس مسائل الجوهر والأقانيم والاتحاد، لاستكشاف القواعد والمسائل والنتائج التي توصل إليها الباقلاني، وبخاصة أن اتجاهات درس ... -
Yemen’s Water Woes: Why Climate Change Is a Drop in the Bucket
( MALCOLM H. KERR CARNEGIE MIDDLE EAST CENTER , 2024 , Book chapter)The water crisis in Yemen did not start with the current conflict. It is a governance crisis stemming from sustainability failures dating back to the post-independence era. Groundwater depletion has been underway for ... -
Investigation on the effect of several parameters involved in the biodegradation of polyethylene (PE) and low-density polyethylene (LDPE) under various seawater environments
( Elsevier , 2024 , Article)This work investigates the biodegradation of polyethylene (PE) and low-density polyethylene (LDPE) and the leaching of their harmful additives. Micro/macro-plastics of both types were subjected to different laboratory-controlled ... -
Effect of reinforcement concentration on the properties of hot extruded Al-Al2O3 composites synthesized through microwave sintering process
( Elsevier Ltd , 2017 , Article)In this study, Aluminum matrix composite reinforced with 5, 10 and 15 vol% Al2O3 particles were fabricated using microwave assisted rapid sintering technique followed by hot extrusion. The effect of concentration of Al2O3 ... -
Development of Inorganically Cross-Linked Sulfonated Polyacrylamide Preformed Particle Gels for Conformance Control: Impact of Anionic Groups
( American Chemical Society (ACS) , 2024 , Article)Modern oil and gas extraction faces challenges, notably from the surplus of produced water, hampering hydrocarbon recovery and raising environmental and economic concerns. A promising solution is the injection of preformed ...
