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السجلات المعروضة 16074 -- 16093 من 17487
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Unconventional experimental technologies available for phase change materials (PCM) characterization. Part 1. Thermophysical properties
( Elsevier Ltd , 2015 , Article)The use of thermal energy storage by phase change materials (PCM) is increasing in interest for building applications. For the deployment of the technology, appropriate characterization of PCM and hybrid PCM is essential, ... -
Unconventional experimental technologies used for phase change materials (PCM) characterization: Part 2 - Morphological and structural characterization, physico-chemical stability and mechanical properties
( Elsevier Ltd , 2015 , Article)Due to the high interest of appropriate characterization of PCM and hybrid PCM composites, different research centres and universities are using several material characterization techniques not commonly used with PCM, to ... -
Uncovering responses of zooplankton community to CO2 acidification in Qatar coastal waters
( Hamad Bin Khalifa University Press , 2016 , Conference Paper)The combustion of fossil fuels is pushing atmospheric concentrations of carbon dioxide (CO2) to unprecedented levels. This rapid increase in atmospheric CO2 is causing global changes, with noticeable increases in temperature, ... -
Uncovering responses of zooplankton community to CO2 acidification in Qatar cstal waters
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The combustion of fossil fuels is pushing atmospheric concentrations of carbon dioxide (CO2) to unprecedented levels. This rapid increase in atmospheric CO2 is causing global changes, with noticeable increases in temperature, ... -
Undecimated wavelet-based Bayesian denoising in mixed Poisson-Gaussian noise with application on medical and biological images
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Due to photon and readout noise biomedical images are generally contaminated by a mixed Poisson-Gaussian noise. In this paper, we propose a Bayesian image denoising methodology for images corrupted by a mixed Poisson-Gaussian ... -
Underage driving and seat-belt use of high school teenagers in Qatar
( Taylor and Francis Inc. , 2017 , Article)Many crashes occur every year that involve drivers who are unlicensed and underage. One of the main challenges for traffic safety authorities is the lack of detailed information about this alarming phenomenon. This study ... -
Undergraduate nursing and medical students' perceptions of food security and access to healthy food in Qatar: a photovoice study
( Cambridge University Press , 2022 , Article)The present study explored nursing and medical students' perceptions of food security, their access to healthy food and the circumstances that affect their access to healthy food in Qatar. The photovoice method was adopted ... -
Underlay cognitive radio : What is the impact of carrier aggregation and relaying on throughput ?
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this paper, we investigate joint relay selection and optimal power allocation, as a means to maximize the achievable rate of an underlay cooperative cognitive radio with carrier aggregation, taking into account the ... -
Underlay cognitive radio: What is the impact of carrier aggregation and relaying on throughput?
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In this paper, we investigate joint relay selection and optimal power allocation, as a means to maximize the achievable rate of an underlay cooperative cognitive radio with carrier aggregation, taking into account the ... -
Underlined Vulnerabilities of the Gulf Region: A New Understanding
( Springer , 2021 , Book chapter)The rift between the Gulf States that opened in 2017 has served to intensify centuries-old debates and tensions in the Middle East. The Gulf crisis has also engendered significant diplomatic tensions between GCC countries, ... -
Underlying Mechanisms of Transit-Oriented Development: A Conceptual System Dynamics Model in Qatar
( MDPI , 2022 , Article)Transit-Oriented Development (TOD) is an urban planning approach that facilitates the achievement of sustainable development goals from an urban planning and transportation perspective. Developed countries are moving rapidly ... -
Understand my world: An interactive app for children learning arabic vocabulary
( IEEE Computer Society , 2021 , Conference Paper)COVID-19 imposed a new paradigm in education especially in elementary schools. Children are no longer able to go regularly to schools as normal. They should then rely mainly on themselves to learn and acquire knowledge. ... -
Understanding adverse drug-related emergency department visits: Development of a conceptual model through a systematic review
( SAGE Publications Ltd , 2019 , Article Review)Background: The burden of adverse drug event (ADE)-related emergency department (ED) visits is increasing despite several preventive measures. The objective of this paper was to develop and validate a conceptual model for ... -
Understanding AI adoption in manufacturing and production firms using an integrated TAM-TOE model
(2021 , Article)This study aims to identify how environmental, technological, and social factors influence the adoption of Industry 4.0 in the context of digital manufacturing. The Industry 4.0 era has brought a breakthrough in advanced ... -
Understanding and Fostering Mental Health and Well-Being among University Faculty: A Narrative Review
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article Review)In recent years, there has been increasing recognition of mental health concerns in academia, with stress, burnout, anxiety, and depression being reported among faculty members. The demanding work environment, the need to ... -
Understanding and perceptions of final-year Doctor of Pharmacy students about generic medicines in Karachi, Pakistan: a quantitative insight
( Dove Press , 2015 , Article)General objective: To evaluate the understanding and perceptions of generic medicines among final-year Doctor of Pharmacy students in Karachi, Pakistan. Methods: A 23-item survey instrument that included a question on the ... -
Understanding challenges to food security in dry Arab micro-states: Evidence from Qatari micro-data
( Walter de Gruyter , 2013 , Article)Using Qatar as a case study, we exploit a novel microdata set for 102 raw agricultural imported commodities on a shipment-by-shipment basis over the period January 1, 2005 to June 30, 2010. The data comprise over half a ... -
Understanding citizens' adoption of e-filing in developing countries: An empirical investigation
( Elsevier Ltd , 2016 , Article)This study develops a research framework by integrating the unified theory of acceptance and use of technology's model with multi-dimensional trust in order to investigate the antecedents of behavioral expectation toward ... -
Understanding COVID-19-related Burnout in Qatar's Community Pharmacists using the Job Demands-Resources Theory
( Qatar University Press , 2021 , Poster)Community pharmacists are one of the most accessible front-liners against the COVID-19 pandemic. Whilst playing a vital role in medication supply and patient education, exposure to pandemic demands and prolonged stressors ... -
Understanding dark side of artificial intelligence (AI) integrated business analytics: assessing firm’s operational inefficiency and competitiveness
( Taylor & Francis , 2021 , Article)The data-centric revolution generally celebrates the proliferation of business analytics and AI in exploiting firm’s potential and success. However, there is a lack of research on how the unintended consequences of AI ...
