Browsing Research Units by Title
Now showing items 1083-1102 of 4543
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Dolomite: Perspectives on a perplexing mineral
( research qate , 2009 , Other)Dolomite is a metastable mineral that can precipitate directly from solutions containing magnesium, calcium and carbonate to form cement or unlithified sediment. It can be categorized into two classes such as penecontemporaneous ... -
Donating Time or Money? The Effects of Religiosity and Social Capital on Civic Engagement in Qatar
( Springer Netherlands , 2018 , Article)Few studies have examined the role of religiosity and social capital on civic engagement in the context of a Muslim country. In this paper, we explore the impact of religiosity and social capital on charitable donations ... -
Dosage Optimization of Polypropylene Fiber for Strength Enhancement of Cementitious Composites
( Qatar Univesrity Press , 2020 , Conference Paper)"Concrete is the most commonly used materials for construction in Qatar as well as in the world. Exposure to sever environmental conditions causes physical deterioration of concrete structures and significantly affect ... -
Double layered polymeric coatings for corrosion protection of steel
( Qatar University Press , 2021 , Poster)Corrosion is one of the challenging issues faced by many industries, causing substantial economic losses every year due to the degradation of metallic parts, raising many safety concerns. Therefore, it is of utmost relevance ... -
DQN based Blockchain Data Storage in Resource-constrained IoT System
( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)Applying blockchain technology in the Internet of Things (IoT) systems to realize massive data storage is a promising technology, which can eliminate the dependence of IoT on central servers and protect data security ... -
Draft Genome Sequence of an Extended-Spectrum β-Lactamase-Producing Klebsiella oxytoca Strain Bearing from Qatar.
( American Society for Microbiology , 2020 , Article)is an opportunistic human pathogen causing nosocomial infection. We report the draft genome of an extended-spectrum β-lactamase-producing isolate harboring an gene, a recently discovered colistin resistance analog, from ... -
Draft legal framework for shared water resources in the Arab World: is it really needed?
( Routledge , 2021 , Article)Attempts to establish a regional water convention covering shared water resources in the Arab world have been ongoing for more than a decade. During this time, a Draft Arab Water Convention has been proposed, and the content ... -
Drastic difference between hole and electron injection through the gradient shell of Cd: XSeyZn1- xS1- y quantum dots
( Royal Society of Chemistry , 2017 , Article)Ultrafast fluorescence spectroscopy was used to investigate the hole injection in CdxSeyZn1−xS1−y gradient core–shell quantum dot (CSQD) sensitized p-type NiO photocathodes. A series of CSQDs with a wide range of shell ... -
Driver Drowsiness Detection Model Using Convolutional Neural Networks Techniques for Android Application
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)A sleepy driver is arguably much more dangerous on the road than the one who is speeding as he is a victim of microsleeps. Automotive researchers and manufacturers are trying to curb this problem with several technological ... -
Drivers and outcomes of corporate sustainability in the Indian hospitality industry
( Emerald Publishing Limited , 2023 , Article)Purpose: This study aims to examine corporate sustainability in the hospitality industry as it caters to multiple stakeholders such as society and environment. Further, the researchers have attempted to portray a comprehensive ... -
Drivers of employee entrepreneurial intention: a study of the oil and gas sector in Qatar
( Inderscience Publishers , 2023 , Article)Many employees are opting to start new businesses while working full-time for established firms. Although employee entrepreneurship has attracted much attention recently, very little is known on what motivates employees ... -
Drivers' perceptions of smartphone applications for real-time route planning and distracted driving prevention
( Hindawi Limited , 2019 , Article)Given the increasing importance and availability of traffic-related smartphone applications, understanding their potential use is vital, especially in developing countries. This research explores motorist perceptions of ... -
Drivers’ estimation of their travelling speed: a study on an expressway and a local road
( Taylor and Francis Ltd. , 2019 , Article)Correctly estimating the travelling speed is essential for safety on the roads to ensure safer interactions with other drivers and to avoid violations of traffic regulations. Therefore, it is important to create understanding ... -
Drivers’ perceptions of the sharing economy for transport services
( Elsevier Inc. , 2022 , Article)The sharing economy (SE) has been studied from various perspectives, but ridesharing is a particularly popular type of SE that has manifested around the world. Prior studies of the SE have largely explored customers’ ... -
Drivers� crossing behaviour between express and local lanes with soft separation: A driving simulator study
( Gioacchino Onorati Editore , 2018 , Article)In different countries, hard separation is adopted as a technique to separate express and local lanes. However, in case of an incident, especially on the express lane, traffic jams can occur as there is no escape route. ... -
Driving behavior classification at signalized intersections using vehicle kinematics: Application of unsupervised machine learning
( Taylor & Francis , 2022 , Article)Driving behavior is considered as a unique driving habit of each driver and has a significant impact on road safety. This study proposed a novel data-driven Machine Learning framework that can classify driving behavior at ... -
Driving simulation sickness and the sense of presence: Correlation and contributing factors
( Elsevier Ltd. , 2021 , Article)Driving simulators are useful and effective tools for conducting studies in the field of traffic safety. Simulation sickness (SS) and the sense of presence (SP) are two well-known factors that could affect the results of ... -
Drug release kinetics from a drug-eluting stent with asymmetrical coat
( IMR Press Limited , 2017 , Article)The aim of this study was to investigate the drug release profiles of biodegradable polymer sirolimus- or paclitaxel-eluting stents with asymmetrical coating (BPSES-A or BPPES-A) both in vitro and in vivo. In vitro, the ... -
Drug-clay nanohybrids as sustained delivery systems
( Elsevier Ltd , 2016 , Article)Biocompatible 2-dimensional layered compounds such as clays and layered double hydroxides (anionic clays) have been explored and utilized in drug delivery system for therapeutic application because they can safely encapsulate ... -
Dry ice-mediated rational synthesis of edge-carboxylated crumpled graphene nanosheets for selective and prompt hydrolysis of cellulose and eucalyptus lignocellulose under ambient reaction conditions
( Royal Society of Chemistry , 2020 , Article)Edge-selectively carboxylated graphene (ECG) crumpled nanosheets are of great importance in potential applications; however, their catalytic activity towards biomass hydrolysis is not yet highlighted. Herein, we rationally ...