Browsing Faculty Contributions by Title
Now showing items 9629-9648 of 18592
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Investigation of flexible polymer-Tl2O3 nanocomposites for x-ray detector applications
( Elsevier B.V. , 2019 , Article)We report on the synthesis and characterization of composite semiconducting polymer – nanoparticle membranes for X-ray detection applications. The membranes are made of poly(vinyl alcohol) (PVA) organic polymer that is ... -
Investigation of gas-liquid flow using electrical resistance tomography and wavelet analysis techniques for early kick detection
( American Society of Mechanical Engineers (ASME) , 2021 , Conference Paper)Gas kick is a well control problem and is defined as the sudden influx of formation gas into the wellbore. This sudden influx, if not controlled, may lead to a blowout problem. An accidental spark during a blowout can lead ... -
Investigation of Genetic Causes in Patients with Congenital Heart Disease in Qatar: Findings from the Sidra Cardiac Registry
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Congenital heart disease (CHD) is one of the most common forms of birth defects worldwide, with a prevalence of 1–2% in newborns. CHD is a multifactorial disease partially caused by genetic defects, including chromosomal ... -
Investigation of heat-resistant antifungal agents from Bacillus amyloliquefaciens and Bacillus subtilis for biocontrol of mycotoxigenic fungi
( Elsevier , 2024 , Article)Fungal infections of food and feed with toxigenic strains results in the accumulation of harmful metabolites. In this study, the antifungal activity of two indigenous bacterial strains Bacillus amyloliquefaciens and Bacillus ... -
Investigation of housing preferences in view of the housing market dynamics in doha metropolitan
( Springer , 2019 , Book chapter)Since the 2000s, Doha has gone through enormous economic growth and urbanization processes. The massive migration inflows have suggested particular housing preferences that are driven by the demographic and lifestyle ... -
Investigation of Indoor Thermal Perceptions and Comfort Temperature in Educational Spaces in Qatar
( Qatar University Press , 2023 , Conference Paper)We conducted thermal comfort field surveys in female educational spaces in Qatar in the autumn and winter of 2018 and 2020 – 21 and collected 324 datasets. They contained all the four environmental measurements and ... -
Investigation of inter feeder power flow regulator: Load sharing mode
(2010 , Article)The Inter feeder Power Flow Regulator (IFPFR) proposed in this paper consists of several voltage source inverters with common dc bus; each inverter is connected in series with one of different independent distribution ... -
Investigation of inter-line dynamic voltage restorer with virtual impedance injection
( IEEE , 2010 , Conference Paper)The Inter-Line Dynamic Voltage Restorer (IDVR) consists of several voltage source inverters connected to different independent distribution feeders with common dc bus. When one of the inverters compensates for voltage sag ... -
Investigation of lanthanum impregnated cellulose, derived from biomass, as an adsorbent for the removal of fluoride from drinking water
( Elsevier Ltd , 2017 , Article)High concentrations of fluoride in drinking water can cause the disease fluorosis. Our scope goal is to develop an effective biopolymeric adsorbent for the removal of fluoride to below a specific safety limit set by the ... -
An Investigation of Math and Science Teaching and Learning in Qatari Independent Elementary Schools
( Peter Lang , 2011 , Book chapter)Following the establishment of a set of key elements for educational reform in Qatar, this chapter presents the findings from a research study in 67 randomly selected third and fourth grade math and science classrooms in ... -
Investigation of Matrix Damage and Remediation Methods of Preformed Particle Gel Conformance Control Treatments in Carbonate Reservoirs
( Society of Petroleum Engineers (SPE) , 2022 , Conference Paper)Preformed Particle Gels (PPGs) have been widely applied to control excessive water production in mature oil fields with fractures or fracture-like features, especially in sandstones, but with limited attention to carbonates. ... -
Investigation of NH3 adsorption on noble metal modified MoSe2
( Elsevier , 2022 , Article)Gas pollutants represent hazard for the quality of the ambient environment, thus, the development of sensitive and selective gas sensors is essential to monitor and maintain its decent quality. The adsorption of NH3 gas ... -
Investigation of novel bacteriocin producers of Bacillus thuringiensis and partial characterization of two new bacteriocins: Thuricin 466 and thuricin 4Q7
( Elsevier Ltd , 2024 , Article)This study assessed the bacteriocin-producing capability of 140 strains of Bacillus thuringiensis isolated from Qatar. Numerous Bt strains exhibited strong antibacterial activity against both the foodborne pathogen B. ... -
Investigation of optical and electrical properties of Cobalt-doped Ge-Sb-S thin film
( Elsevier B.V. , 2019 , Article)Amorphous Germanium Antimony Sulphide (Ge-Sb-S) doped with Cobalt (Co) have been deposited on glass substrates by thermal evaporation technique on a glass substrate. The films deposited onto glass substrates are characterized ... -
Investigation of optimal charging locations for electric vehicles in Istanbul
( IEOM Society , 2017 , Conference Paper)Electric vehicles have a great potential to decrease the adverse effects of transportation, especially in metropolitan cities. On the other hand, adoption of the electric vehicles requires supporting infrastructure such ... -
Investigation of outdoor thermal comfort and psychological adaptation in hot-humid climate of Qatar
( EDP Sciences , 2023 , Conference Paper)In the last few years, tremendous changes have taken place in Doha, the capital city of Qatar. These include rapid population growth, great improvements in education, the hosting of international events, and diverse economic ... -
Investigation of phase transformation for ferrite-austenite structure in stainless steel thin films
( Elsevier B.V. , 2016 , Article)In this work we report on phase transformation of 304 stainless steel thin films due to heat treatment. Ex-situ annealing was applied for evaporated 304 stainless steel thin films inside an ultra-high vacuum chamber with ... -
Investigation of Proton Diffusion Coefficient for PbO2 Prepared from Intermediate Oxides
( Pleiades Publishing , 2019 , Article)Lead dioxide was extracted from used batteries, and used to synthesize the following intermediate oxides by heating at different temperatures: Pb12O19, Pb12O17, and Pb3O4. Each of the prepared intermediate oxide was subject ... -
Investigation of sensorless capacitor voltage balancing technique for modular multilevel converters
( IEEE , 2014 , Conference Paper)Modular Multilevel converters (MMC) have become one of the most promising topologies for DC-AC conversion in recent years. Capacitor voltage balancing is a vital issue for proper operation of the MMC. Generally, conventional ... -
Investigation of solar PV performance under Doha weather using a customized measurement and monitoring system
( Elsevier Ltd , 2016 , Article)A key factor in future eco-friendly and reliable energy systems for network stability is energy prediction of renewable resources. However, the climate-induced performance degradation represents a major drawback to solar ...