Qatar University Institutional Repository: Recent submissions
Now showing items 1621-1640 of 28823
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Whole genome-based genetic insights of bla NDM producing clinical E. coli isolates in hospital settings of Pakistant
( American Society for Microbiology , 2023 , Article)Carbapenem resistance among Enterobacterales has become a global health concern. Clinical Escherichia coli isolates producing the metallo β-lactamase NDM have been isolated from two hospitals in Faisalabad, Pakistan. These ... -
Granulomatous Mastitis With Breast Abscess Caused by Salmonella.
( Springer , 2023 , Report)Granulomatous mastitis (GM) is a rare disease that occurs in young premenopausal women, is mostly idiopathic, and is less likely to be caused by infection and trauma. It is also strongly associated with pregnancy, lactation, ... -
Antibacterial and catalytic performance of rGO-CNT-ZrO2 composite
( Taylor and Francis Group , 2023 , Article)In recent years, there has been a rise in public awareness regarding antibacterial properties and commercial opportunities for their use in the medical field. The current study describes the fabrication of a ternary ... -
Harvesting water from air using adsorption material - Prototype and experimental results
( Elsevier , 2021 , Article)Drinking water resources have always been limited in the gulf region of the Middle East and other desert regions around the world. In attempt to provide viable supplement, a device that harvests clean drinking water from ... -
Large-eddy simulation of the flow in Z-Shape duct
( Cogent OA , 2020 , Article)A numerical study is conducted of the transient flow in a z-shape three-dimensional duct using large-eddy simulation (LES) with dynamic eddy viscosity subgrid-scale (SGS) model with a fully structured grid system. The ... -
Single and multiphase flow leak detection in onshore/offshore pipelines and subsurface sequestration sites: An overview
( Elsevier , 2024 , Article)Leaks may occur in existing pipelines, even when designed with quality construction and appropriate regulations. The economic impact of oil spills and natural gas dispersion from leaks can be huge. Failure to detect pipeline ... -
Thermoeconomic Analysis of a Solar-Assisted Industrial Process Heating System
( Wiley-Hindawi , 2024 , Article)Thermal energy in the industrial sector for process heating applications in the range of 50 to 250°C consumes about 35% of the global fossil fuel. Cascaded solar thermal systems are promising solutions to meet clean and ... -
Performance analysis of various machine learning algorithms for CO2 leak prediction and characterization in geo-sequestration injection wells
( Elsevier , 2024 , Article)The effective detection and prevention of CO2 leakage in active injection wells are paramount for safe carbon capture and storage (CCS) initiatives. This study assesses five fundamental machine learning algorithms, namely, ... -
Isobaric Expansion Engines Powered by Low-Grade Heat-Working Fluid Performance and Selection Database for Power and Thermomechanical Refrigeration
( Wiley-VCH Verlag , 2020 , Article)A database is developed for the most suitable working fluids for Worthington-type and Bush-type isobaric engines based on their performances for a wide range of heat source temperature, from 40 to 300 °C, and operating ... -
Digital twin in energy industry: Proposed robust digital twin for power plant and other complex capital-intensive large engineering systems
( Elsevier , 2022 , Article Review)The complex future power plants require digital twin (DT) architecture to achieve high reliability, availability and maintainability at lower cost. The available research on DT for power plants is limited and lacks details ... -
Performance investigation of solar photovoltaic panels using mist nozzles cooling system
( Taylor and Francis Ltd. , 2024 , Article)Solar PV has a disadvantage over its many advantages that its electrical efficiency falls due to rise in surface/operating temperature of solar PV cells. Therefore, it is necessary to find a way to mitigate the efficiency ... -
Dataset for measured viscosity of Polyalpha-Olefin- boron nitride nanofluids
( Elsevier , 2021 , Dataset)Datasets of measured viscosity of Polyalpha-Olefin- boron nitride (PAO/hBN) nanofluids are reported. An AR-G2 rheometer (from TA Instruments) experimental setup is used for measuring the rheological property of PAO/hBN ... -
Heat transfer measurements of Polyalpha-Olefin- boron nitride nanofluids for thermal management and lubrication applications
( Elsevier , 2020 , Article)In this paper, the first study is reported combining Polyalpha-Olefin (PAO) oil with hexagonal Boron Nitride (hBN) to produce new class of nanofluids for heat transfer and lubrication applications. The heat transfer ... -
Turbulence Modeling Using Z-F Model and RSM for Flow Analysis in Z-SHAPE Ducts
( Wiley , 2020 , Article)Turbulent flow in Z-shape duct configuration is investigated using Reynolds stress model (RSM) and ζ-f model and compared to experimental results. Both RSM and ζ-f models are based on steady-state RANS solutions. The focus ... -
Modeling and Analysis of Effect of Various Tank Geometries and Relief Pressure on Liquid Hydrogen (LH2) Boil-Off Losses
( Scanditale AB , 2024 , Conference Paper)This research investigates the effect of various storage tank geometries and relief pressure on boil-off losses for liquid hydrogen (LH2). The effect of storage volume of LH2 in the tanks for the various geometries is ... -
Dynamic Modeling and Analysis of Solar Industrial Process Heating (SIPH) for the Food industry
( Scanditale AB , 2024 , Conference Paper)Thermal energy requirements in the industrial sector for different process heating applications consume about 35% of the total global fossil fuels. To mitigate the consumption of fossil fuels, solar industrial process ... -
Current Technologies and Future Perspectives in Immunotherapy towards a Clinical Oncology Approach
( MDPI , 2024 , Article Review)Immunotherapy is now established as a potent therapeutic paradigm engendering antitumor immune response against a wide range of malignancies and other diseases by modulating the immune system either through the stimulation ... -
Reinventing Patient Support and Continuity of Care Using Innovative Physician-staffed Hotline: More than 60,000 Patients Served Across 15 Medical and Surgical Specialties During the First Wave of COVID-19 Lockdown in Qatar
( Springer Nature , 2023 , Article)Rising disease prevalence early during the COVID-19 pandemic in the State of Qatar led to stoppage of all non-emergency health care services. To maintain continuity of care and information exchanges for non-emergency ... -
“Is percutaneous extraction of gallstones safe and effective in high-risk patients? Evidence from a systematic review”
( Elsevier , 2022 , Article)Gallstone disease in high-risk patients presents a management dilemma as cholecystectomy is often not performed due to their co-morbidities. Alternatively, such patients can be managed by percutaneous removal of gallstones. ... -
Melitracen and flupentixol (deanxit) use disorder in Lebanon
( Elsevier , 2023 , Article)IntroductionDeanxit is a combination of melitracen and flupentixol, not approved as an antidepressant for sale and use in several countries but still widely available and commonly used among the Lebanese population. The ...