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Now showing items 23573-23592 of 44043
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Understanding the mechanics of complex topology of the 3D printed Anthill architecture
( Oxford University Press , 2022 , Article)The present work aimed to investigate the deformation behavior of complex ant mound architectures under compression. We have used the cement casting method to extract four different ant nest morphologies. These casted ... -
Understanding the Nature of Capacity Decay and Interface Properties in Li//LiNi0.5Mn1.5O4 Cells by Cycling Aging and Titration Techniques
( American Chemical Society , 2020 , Article)The spinel structure LiNi0.5Mn1.5O4 (LNMO) is a propitious cathode material for next-generation lithium-ion batteries for fast charge-discharge applications, but its capacity decay mechanism and rate-limiting process are ... -
Understanding the Origin of the Ultrahigh Rate Performance of a SiO2-Modified LiNi0.5Mn1.5O4 Cathode for Lithium-Ion Batteries
( American Chemical Society , 2019 , Article)LiNi0.5Mn1.5O4 (LNMO) is one of the most promising cathode materials for next-generation lithium-ion batteries for rapid charging–discharging applications. The surfaces of LNMO samples are coated with different amounts ... -
Understanding the Phytoremediation Mechanisms of Potentially Toxic Elements: A Proteomic Overview of Recent Advances
( Frontiers Media , 2022 , Article Review)Potentially toxic elements (PTEs) such as cadmium (Cd), lead (Pb), chromium (Cr), and arsenic (As), polluting the environment, pose a significant risk and cause a wide array of adverse changes in plant physiology. Above ... -
Understanding the role of atmospheric circulations and dispersion of air pollution associated with extreme smog events over South Asian megacity
( Springer , 2022 , Article)The winter fog/haze events in northeastern Pakistan and surrounding regions of India are often mixed with pollutants to form smog, and consequently damage human health and hampers daily life in the form of fatalities through ... -
Understanding the Scales Formation Inhibition Mechanism on C-Steel in a Sour Media
( The Electrochemical Society , 2019 , Conference Paper)Corrosion control in sour environments is a severe challenge for the oil and gas industries with respect to sour media. One of the approaches to mitigate such a problem is to use corrosion inhibitors (CI). The selection ... -
Understanding the structure-function relationship of HPRT1 missense mutations in association with Lesch-Nyhan disease and HPRT1-related gout by in silico mutational analysis.
( Elsevier , 2019 , Article)The nucleotide salvage pathway is used to recycle degraded nucleotides (purines and pyrimidines); one of the enzymes that helps to recycle purines is hypoxanthine guanine phosphoribosyl transferase 1 (HGPRT1). Therefore, ... -
Understanding the topologies of BitTorrent networks: A measurement view
(2012 , Conference Paper)BitTorrent (BT) is one of the most popular Peer-to-Peer (P2P) network applications. Most characteristics (except the topology) of BT network have been examined extensively by measurement approaches. In this work, we deploy ... -
Understanding Traffic Accidents among Young Drivers in Qatar
( MDPI , 2022 , Article)Young drivers are generally associated with risky driving behaviors that can lead to crash involvement. Many self-report measurement scales are used to assess such risky behaviors. This study is aimed to understand the ... -
Understanding Water Consumption in Qatar: Evidence From a Nationally Representative Survey
( Taylor and Francis Ltd. , 2022 , Article)This paper presents an analysis of a nationally representative (n = 1,002) telephone survey conducted in Qatar on habits, perceptions, and religious attitudes related to water use. Our empirical analysis yields three main ... -
Understanding Water Consumption in Qatar: Evidence From a Nationally Representative Survey
( Taylor & Francis , 2022 , Article)This paper presents an analysis of a nationally representative (n = 1,002) telephone survey conducted in Qatar on habits, perceptions, and religious attitudes related to water use. Our empirical analysis yields three main ... -
Understanding Workplace Adoption of Social Networking Sites: Employers’ perspective
( Qatar University , 2012 , Article)Studies on social networking sites (SNSs) rarely touched on the acceptance of SNS use in the workplace. This study, in turn, attempts to fill this gap by explaining the acceptance of SNS use in the workplace by proposing ... -
Undetectable Cyber Attacks on Communication Links in Multi-Agent Cyber-Physical Systems
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)The objective in this paper is to study and develop conditions for a network of multi-agent cyber-physical systems (MAS) where a malicious adversary can utilize vulnerabilities in order to ensure and maintain cyber attacks ... -
Undoing Babel: The tower of Babel in Anglo-Saxon literature
( University of Toronto Press , 2018 , Book)The Tower of Babel narrative is one of the most memorable accounts of the Bible, and its interpretative potential has produced a vast array of literary adaptations. Undoing Babel is the first extensive examination of the ... -
UNESCO on Al Bairaq World
( Qatar University , 2012 , Video) -
Unexpected adrenal pheochromocytoma associated with a generalized tonic-clonic seizure in a prepubertal boy: A case report.
( Lippincott, Williams & Wilkins , 2021 , Article)Pheochromocytoma (PHEO) is a rare neuroendocrine tumor arising from chromaffin cells of the adrenal medulla. Most pediatric PHEOs are functional tumors, and clinical manifestations are related to catecholamine hypersecretion ... -
Unexpected presentation of ischemic colitis: a case report and review of the literature.
( Oxford University Press , 2023 , Other)Ischemic colitis accounts for many cases of bowel infarction. Usually, it has various manifestations, such as vomiting, abdominal pain, hematochezia and many other symptoms. Risk factors might include age, medications, ... -
Unfair Payment Issues in Construction: Re-Thinking Alternative Payment Method For Tier-1 Contractors to Subcontractors
( Qatar Univesrity Press , 2020 , Conference Paper)Recent statistics reveal substantial increase in late payments cases from 18% to 27%; with over £30 billion unpaid invoices to UK contractors. Furthermore, 82% of overdue invoices are monies owed to subcontractor by tier-1 ... -
Unified energy management and load control in building equipped with wind-solar-battery incorporating electric and hydrogen vehicles under both connected to the grid and islanding modes
( Elsevier Ltd , 2019 , Article)This paper presents a unified model for home energy management. The proposed model optimizes the cogeneration of wind, solar, and battery storage units. The introduced tool considers electric and hydrogen vehicles and ... -
A unified framework for bias assessment in clinical research
( Lippincott, Williams & Wilkins , 2019 , Article)Methodological flaws, limitations, and inadequate practices in research are well known and pose threats to the internal validity of any research study. However, there are ways of safeguarding research conduct to reduce the ...
