Browsing Academic by Title
Now showing items 21987-22006 of 26400
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Unanswered issues on decarbonizing the aviation industry through the development of sustainable aviation fuel from microalgae
( Elsevier , 2023 , Article)Concerns have been raised about the effects of fossil fuel combustion on global warming and climate change. Fuel consumer behavior is also heavily influenced by factors such as fluctuating fuel prices and the need for a ... -
Uncertain training data set conceptual reduction: A machine learning perspective
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)Knowledge discovery from data is a challenging problem that has significant importance in many different fields such as biology, economics and social sciences. Real-world data is incomplete and ambiguous; moreover, its ... -
Uncertainty and contract flexibility in automotive supply chains: A simulation model
( Inderscience Enterprises Ltd. , 2019 , Article)Supply chains are vulnerable to uncertainties in demand and supply. Such uncertainties are often responsible for failure of contracts between buyers and suppliers. Flexible provisions in contracts are likely to reduce the ... -
Uncertainty and Equivalence Relation Analysis for Hesitant Fuzzy-Rough Sets and Their Applications in Classification
( IEEE Computer Society , 2019 , Article)The fusion of hesitant fuzzy set (HFS) and fuzzy-rough set (FRS) is explored and applied into the task of classification due to its capability of conveying hesitant and uncertainty information. In this paper, on the basis ... -
Uncertainty awareness in transmission line fault analysis: A deep learning based approach
( Elsevier Ltd , 2022 , Article)With the expansion of the modern power system, it is of increasing significance to analyze the faults in the transmission lines. As the transmission line is the most exposed element of a power system, it is prone to different ... -
Uncommon presentation of complicated internal hernia through the appendices epiploicae ring of adhesion: a clinical case study
( Frontiers Media , 2024 , Article)Background: Internal hernias are infrequent, yet serious, medical conditions with potentially severe consequences. An internal hernia resulting from an Appendices epiploicae (AE) ring is an especially rare cause, with a ... -
Uncontrolled Glycemia and High Percentage of Truncal Fat Elevate Levels of CRP and IL-6 Among Patients with Type 2 Diabetes
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Background Systemic inflammation is the continuous phenomenon of inflammatory response which can promote tissue damage. Systemic inflammation is characterized by circulatory elevation of many inflammatory mediators such ... -
UNCONVENTIONAL ANIMAL MODELS IN INFECTIOUS DISEASE RESEARCH
( Frontiers , 2021 , E-Book)Apart from genetics and physiology, our understanding of other important aspects of the biological life, such as host-pathogen interactions stayed at its infancy for many years. Back then, many infectious diseases lacked ... -
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, ... -
Uncovering the Epigenetic Contribution of Protein Arginine Methyltransferase 5 (PRMT5) during Zebrafish Cardiomyogenesis
(2020 , Dissertation)The heart develops through an extremely intricate process mediated by a network of transcription factors initiated by key chromatin modification events. Scientist have implicated the protein arginine methyltransferase ... -
Uncovering the immunological repertoire of the carpet shell clam Ruditapes decussatus through a transcriptomic-based approach
( Elsevier B.V. on behalf of KeAi Communications Co. , 2019 , Article)The grooved carpet-shell clam Ruditapes decussatus is native to the Northern Atlantic and Mediterranean Sea and has a high commercial value. It is one of the main native bivalve species cultured in Europe. The main ... -
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 ... -
Undergraduate Research Experience Models: A systematic review of the literature from 2011 to 2021
( Elsevier , 2022 , Article)Undergraduate research experiences (UREs) impart a great deal of knowledge to undergraduate students, enhance the research capital of institutes, and authenticate the country's educational outcomes. To effectively assimilate ... -
Undergraduate student research
( Qatar University Press , 2020 , Poster)Introduction: The United Nations launched the Sustainable Development Goals in 2015. One of these goals describes achieving a Universal Health Coverage by 2030. This signifies workforce planning in healthcare professions ... -
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 ...
