Browsing Academic by Title
Now showing items 22459-22478 of 26170
-
Weakly Conjugated Hybrid Zinc Porphyrin Sensitizers for Solid-State Dye-Sensitized Solar Cells
( Wiley-VCH Verlag , 2016 , Article)Molecularly engineered weakly conjugated hybrid porphyrin systems are presented as efficient sensitizers for solid-state dye-sensitized solar cells. By incorporating the quinolizino acridine and triazatruxene based unit ... -
WEALTH AND THE PERSISTENCE OF AUTHORITARIANISM IN THE GULF STATES: ECONOMIC PRIVILEGE OR A CULTURAL PHENOMENON?
( Foundation for Good Politics , 2021 , Article)During the Arab Spring the idea of the Middle East as an authoritarian exception appeared to be no longer valid. Yet the Gulf states seem to be safe from political turmoil. This paper examines the persistence of authoritarianism ... -
Wear resistance investigation of titanium nitride-based coatings
( Elsevier Ltd , 2015 , Article)The wear of components while they are in service is a predominant factor controlling the life of machine components. Metal parts are often damaged because of wear-driven failures causing the loss of dimensions and ... -
Wear, optimization and surface analysis of Al-Al2O3-TiO2 hybrid metal matrix composites
( SAGE Publications Ltd , 2021 , Article)The aim of the present work is to investigate vickers hardness, wear behavior as well as to perform optimization of wear data for pure Al and Al-Al2O3-TiO2 hybrid metal matrix composites. The hybrid composite (Al-Al2O3-TiO2) ... -
Wearable AI Reveals the Impact of Intermittent Fasting on Stress Levels in School Children During Ramadan
( IOS Press BV , 2023 , Conference Paper)Intermittent fasting has been practiced for centuries across many cultures globally. Recently many studies have reported intermittent fasting for its lifestyle benefits, the major shift in eating habits and patterns is ... -
Wearable Artificial Intelligence for Assessing Physical Activity in High School Children
( MDPI , 2023 , Article)Eighty one percent of adolescents aged 11–17 years are inadequately physically active worldwide. Physical activity (PA) recommendations for high school children have not been studied previously in schools in the Qatar ... -
Wearable Devices to Revolutionize Health Care
( UC Berkeley Haas School of Business , 2022 , Other)In the last decade, we witnessed a rapid growth of wearable devices—small electronic devices that are worn or carried on the human body. A study by the Facts and Factors found that the global Wearable device market size ... -
Wearable real-time heart attack detection and warning system to reduce road accidents
( MDPI AG , 2019 , Article)Heart attack is one of the leading causes of human death worldwide. Every year, about 610,000 people die of heart attack in the United States alone—that is one in every four deaths—but there are well understood early ... -
Wearable RealTime Heart Attack Detection and Warning System to Reduce Car Accidents in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Introduction Fatal car accidents have become an alarming issue all over the globe. A sudden medical condition such as a heart attack causes medical symptoms that lead a driver to lose consciousness while driving and ... -
Wearable thermoelectric generator with vertically aligned PEDOT:PSS and carbon nanotubes thermoelements for energy harvesting
( John Wiley and Sons Ltd , 2022 , Article)Thermoelectric generators (TEGs) facilitate maintenance-free sustainable energy transduction, making them attractive and feasible options for self-powered wearable electronics. Nonetheless, their energy-conversion process ... -
Weaving trending, costing and recommendations using big data analytic: An enterprise capability evaluator
( Springer International Publishing , 2016 , Book chapter)In the life cycle of a business organization, unprecedented turmoil and turbulent timings are inevitable. This ever green truth is not only an advice but a motivation for every organization to be dynamic in its business ... -
Web 2.0 Technologies Adoption Barriers for External Contacts and Participation: A Case Study of Federal Establishment of Africa
( Inderscience , 2022 , Article)Ever since the evolution of web technology in the 1990's, the web traffic got subjected to many developments. Web 1.0 and 2.0 are some of the innovations that made the world as a global village and increased the communication ... -
Web Application Resource Requirements Estimation Based on the Workload Latent Features
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Most cloud computing platforms offer reactive resource auto-scaling mechanisms for dealing with variable traffic patterns to deliver the desired QoS properties while keeping low provisioning costs. However, a range of ... -
Web service cost optimization
( Association for Computing Machinery, Inc , 2015 , Conference Paper)Cloud computing has become a major building block for Web applications where the service providers provide the costumers with Web services performing certain tasks so the system developers can use these services instead ... -
A Web-based Platform for Mobile Service Delivery
( Global Science and Technology Forum (GSTF) , 2012 , Article)The project presented in this paper involves designing and developing a web-based platform called “Content Management & Delivery Platform” (CMDP) in support of mobile service delivery that integrates with the mobile network ... -
Webinars for teacher professional development: perceptions of members of a virtual professional community of practice
( Routledge , 2024 , Article)This study explores the significance of webinars as tools for supporting teachers’ professional development and growth beyond the COVID-19 pandemic, as perceived by the teachers themselves. The study employs a mixed methods ... -
Weed Communities Of Date Palm In Eastern Arabia
( Qatar University , 1992 , Article)The present study deals with the recognition and description of the weed communities of date palm plantations in Al-Hassa Oasis, . Eastern Arabia. Thirty three communities are recognized. They are classified, after the ... -
WEIBULL DISTRIBUTION BASED ON EDUCATION PARTLY INTERVAL CENSORED DATA
(2018 , Professional Masters Project)The work in this project is concerned with the applying of techniques for the assessment of survival analysis in data that include censored observations. Survival analysis has a lot of achievement in the medical, engineering, ... -
A weight-management camp followed by weekly after-school lifestyle education sessions as an obesity intervention for Qatari children: a prospective cohort study
( Elsevier , 2015 , Conference Paper)Background Weight-management camp interventions for obese children are eff ective for short-term weight loss. However, there is little evidence indicating how gains made with such interventions can be maintained in the ... -
Weighted estimates for oscillatory singular integrals
(2013 , Article)We establish uniform bounds for oscillatory singular integrals as well as oscillatory singular integral operators. We allow the singular kernel to be given by a function in the Hardy space H1(Sn-1), while such results were ...
