Browsing Research Units by Title
Now showing items 939-958 of 4556
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Demulsification of stable emulsions from produced water using a phase separator with inclined parallel arc coalescing plates
( Elsevier , 2015 , Article)A novel and highly efficient oil-water separator equipped with a series of inclined multiple arc coalescence plates is developed and optimized for the removal of stable oil emulsions from produced water. The synthetic high ... -
Denaturing Gradient Gel Electrophoresis-Polymerase Chain Reaction Comparison of Chitosan Effects on Anaerobic Cultures of Broiler Cecal Bacteria and Salmonella Typhimurium.
( Mary Ann Liebert , 2018 , Article)Enteropathogen colonization and product contamination are major poultry industry problems. The emergence of antibiotic resistance, and associated risks to human health, is limiting the use of antibiotics as first-line ... -
Density-Functional Theory Investigation of Barite Scale Inhibition Using Phosphonate and Carboxyl-Based Inhibitors
( American Chemical Society , 2020 , Article)Scale deposition is a critical issue in oil and gas exploration and production processes, causing significant blocking in tubing and consequently flow assurance and economic losses. Most studies addressing the scale formation ... -
Dependence of wear behavior on sintering mechanism for Iron-Alumina Metal Matrix Nanocomposites
( Elsevier Ltd , 2018 , Article)The present paper reports the dependence of wear behavior on sintering mechanism for iron (Fe) alumina (Al2O3) metal matrix nanocomposites fabricated via Powder Metallurgy (P/M) technique. Nanocomposite composition was ... -
Depression in migrant workers and nationals of Qatar: An exploratory cross-cultural study
( SAGE Publications , 2019 , Article)Background: The aim of this study was to compare the prevalence of depressive symptoms among migrants and non-migrants living in Qatar and identify variables associated with depressive symptomology in these groups, including ... -
Depression-anxiety in the Adult Population of Qatar during the First Year of COVID-19
( Qatar University Press , 2021 , Poster)There is limited data from Arabic-speaking countries on risk factors for depression and anxiety during the COVID-19 pandemic. Country-specific data is necessary given differences in culture, demographics, and COVID-19 ... -
Desalination in the GCC countries- a review
( Elsevier Ltd , 2022 , Article Review)The Gulf Cooperation Council (GCC) countries are located in one of the most arid regions in the world with very less freshwater resources, and hence depending on desalination plants to tackle the water scarcity and satisfy ... -
Design and Development of Inexpensive Paper-Based Chemosensors for Detection of Divalent Copper
( Springer Nature , 2023 , Article)Abstract: Simple, portable, and low-cost paper-based sensors are alternative devices that have the potential to replace high-cost sensing technologies. The compatibility of the paper base biosensors for both chemical and ... -
Design and development of novel computer vision-based automatic calibration system for analog dial pressure gauge
( American Society for Testing and Materials , 2022 , Article)Pressure gauge calibration refers to comparing the standard and test gauge to determine the error percentage. The reading accuracy of the analog dial pressure gauge is found in the conventional method through manual ... -
Design and Evaluation Strategies for a Novel Hybrid Trigeneration System
( Elsevier B.V. , 2022 , Book chapter)Renewable energy sources that involve the use of Concentrated Solar Power systems (CSP) are receiving increased attention due to many of the prominent features that it can provide. Most importantly, the simultaneous ... -
Design and experimental analysis of solar-powered water desalination system using humidification?dehumidification
( Taylor and Francis Ltd. , 2020 , Article)Desalination with solar-powered air heating and packed bed humidification is designed and fabricated using locally available materials. The system with fined type dehumidifier is designed using the LMTD method. There are ... -
Design and field procedures for the clinical reappraisal of the Composite International Diagnostic Interview version 3.3 in Qatar's national mental health study
( John Wiley and Sons Ltd , 2023 , Article)Background: The Composite International Diagnostic Interview (CIDI) has been clinically reappraised in several studies conducted mainly in the US and Europe. This report describes the methodology used to conduct one of the ... -
Design and implementation of a modular ECMO simulator
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Article)Background: Extracorporeal membrane oxygenation (ECMO) is a high-complexity life-saving procedure riddled with mechanical complications that can place the patient in a critical state where fast and coordinated actions are ... -
Design and Implementation of a Threat-Specific Security Risk Assessment Tool
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)Security threats posed to individual cloud computing clients vary depending on their specific security requirements. However, Cloud Providers apply generic security risk assessment approaches which result do not consider ... -
The Design and Implementation of Survey Quality Control System for Qatar's First National Mental Health Survey: A Case Study
( JMIR Publications , 2023 , Article)All World Mental Health (WMH) surveys apply high standards of data quality. Most published quality control procedures for these surveys to date were in relation to face-to-face interviews. However, due to the social ... -
Design and Microinjection of Morpholino Antisense Oligonucleotides and mRNA into Zebrafish Embryos to Elucidate Specific Gene Function in Heart Development
( MyJove Corporation , 2022 , Article)The morpholino oligomer-based knockdown system has been used to identify the function of various gene products through loss or reduced expression. Morpholinos (MOs) have the advantage in biological stability over DNA oligos ... -
Design and optimization of four-terminal mechanically stacked and optically coupled silicon/perovskite tandem solar cells with over 28% efficiency
( Elsevier , 2023 , Article)Silicon/perovskite tandem devices are believed to be a favorite contender for improving cell performance over the theoretical maximum value of single-junction photovoltaic (PV) cells. The present study evaluates the design ... -
Design and thermo-economic evaluation of an integrated concentrated solar power – Desalination tri-generation system
( Elsevier Ltd , 2021 , Article)In this work, a concentrated solar power (CSP) tri-generation system that is capable of the simultaneous production of steam, power and freshwater is introduced. The abundantly available direct normal irradiance can ... -
Design of hybrid clay/ polypyrrole decorated with silver and zinc oxide nanoparticles for anticorrosive and antibacterial applications
( Elsevier , 2020 , Article)In this work, a novel and cost-effective bentonite intercalated with polypyrrole Zinc oxide-silver nanocomposite (B-PPy/ZnO) hybrid material was prepared via in situ photopolymerization of pyrrole in the presence of silanized ... -
Design of Nanoparticulate Group 2 Influenza Virus Hemagglutinin Stem Antigens That Activate Unmutated Ancestor B Cell Receptors of Broadly Neutralizing Antibody Lineages.
( American Society for Microbiology , 2019 , Article)Influenza vaccines targeting the highly conserved stem of the hemagglutinin (HA) surface glycoprotein have the potential to protect against pandemic and drifted seasonal influenza viruses not covered by current vaccines. ...