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السجلات المعروضة 14277 -- 14296 من 50316
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INVESTIGATION AND PRODUCTION OF BIOINSECTICIDES BASED ON NEWLY BACILLUS THURINGIENSIS STRAINS ISOLATED FROM QATAR FOR THE DEVELOPMENT OF A BIOLOGICAL AGRICULTURE AND SAFE FOOD PRODUCTION IN QATAR
(2024 , Master Thesis)Bacillus thuringiensis produces parasporal crystals responsible of their insecticidal activity against specific insect orders. Eight newly isolated Bt strains produce different parasporal crystal and have several genetic ... -
An investigation into fouling, wetting and their mitigation using commercial Antiscalant in membrane distillation desalination
(2017 , Master Thesis)An experimental investigation into membrane fouling and loss of hydrophobicity was carried out in direct contact membrane distillation (DCMD) desalination of high salinity seawater. The membrane used was a commercial ... -
An investigation into hybrid carbon/glass fiber reinforced epoxy composite automotive drive shaft
( Elsevier , 2011 , Article)This paper examines the effect of fiber orientation angles and stacking sequence on the torsional stiffness, natural frequency, buckling strength, fatigue life and failure modes of composite tubes. Finite element analysis ... -
AN INVESTIGATION INTO HYDROPHOBIC MEMBRANE FOULING IN DESALINATION USING MEMBRANE DISTILLATION TECHNOLOGY
(2015 , Master Thesis)Demand for freshwater supplies is continuously increasing globally to the extent where some parts of the world became highly water stressed. In particular, the Arabian Gulf states rely heavily on seawater desalination for ... -
Investigation into mechanical, surface and adhesive properties of date palm wood-polyolefin micro composites
( Technical University in Zvolen , 2020 , Article)Wood-plastic composites are composite materials made of wood fibre or other lignocellulosic materials and thermoplastic(s). Date palms are one of the potential replacements of insufficient timber sources in the Middle ... -
An Investigation into the Association Between Inflammatory Bowel Disease and Cardiac Arrhythmias: An Examination of the United States National Inpatient Sample Database
( SAGE Publications , 2020 , Article)Background: Inflammatory bowel diseases (IBD) associated-chronic inflammation and autonomic dysregulation may predispose to arrhythmias. However, its exact prevalence is unknown. Thus, we aimed to ascertain the prevalence ... -
An investigation into the avoidability of adverse drug reactions using the LAAT and modified Hallas tools
( Wolters Kluwer Health , 2020 , Article)An adverse drug reactions avoidability tool called the Liverpool ADR avoidability assessment tool (LAAT) was recently developed (for research purposes), and subsequently validated with mixed interrater reliability (IRR). ... -
An investigation into the avoidability of drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome
( Springer Nature , 2021 , Article)Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a rising morbidity amongst hospitalized patients. Whilst clinical protocols for the management of individual DRESS cases have been well established, ... -
Investigation Into the Effects of Non-Linear Loading of Domestic Power Network on Home Appliances
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Non-Linear loads such as Compact Fluorescent lamps (CFLs), Light Emitting diodes (LEDs),Solid state voltage regulators, and variable speed electric drives are increasingly being added tothe domestic, residential and ... -
An investigation into the impact of enteric coated of aspirin in patients with newly diagnosed ischemic stroke (ECASIS)
( Wolters Kluwer Health , 2020 , Article)Introduction:Uncertainty remains regarding the impact of enteric-coated (EC) aspirin as it relates to the reduction of cardiovascular risk. We hypothesize that EC formulation based on a previous report may blunt aspirin ... -
An Investigation into the Lifestyle, Health Habits and Risk Factors of Young Adults
( MDPI AG , 2015 , Article)This project examined the lifestyle, health habits and risk factors of young adults at Qatar University. It explored the clustering and differences in dietary habits, body mass index (BMI) and physical activity (PA) amongst ... -
Investigation into ultraviolet radiations from modern electric light sources
( Taylor and Francis Ltd. , 2017 , Article)Due to concerns of increasing electrical energy demand and government regulations, traditional incandescent lamps are being replaced by energy-efficient lamps, such as compact fluorescent lamps (CFLs) and light emitting ... -
Investigation of a bidirectional DC/DC converter with zero-voltage switching operation for battery interfaces
( John Wiley and Sons Inc , 2021 , Article)This paper proposes a bidirectional DC-DC converter with soft-switching capabilities. The main characteristic of this converter is that it can be operated in both boost and buck modes. The major advantages of this converter ... -
Investigation of a New Voltage Balancing Circuit for Parallel-connected Offshore PMSG-based Wind Turbines
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)Parallel connection of wind turbines (WTs) is beneficial in high-power applications. For successful operation of parallel WT-based energy conversion systems, a well-regulated voltage is needed at the collection point. Due ... -
Investigation of antimicrobial properties and in-vitro bioactivity of Ce3+-Sr2+dual-substituted nano hydroxyapatites
( Blackwell Publishing Inc. , 2019 , Article)Dual doped calcium apatite has been widely focused as it enhances the osteoconductive property for the possible applications in orthopedic and dental implants. In this work, we investigate the antimicrobial and bioactive ... -
Investigation of Bacillus Thuringiensis Plasmid Instability and its Effect on the Synthesis of Crystals
( Qatar University Press , 2020 , Poster)In order to explore plasmid instability in Bt, four Bt strains belonging to two Bt subspecies were cultured at 42°C for 9 days. HD1 and QBT376 belong to subspecies kurstaki, while H14 and QBT218 belong to subspecies ... -
INVESTIGATION OF BACTERIAL DIVERSITY AND CHEMOMETRIC ASSESSMENT FOR ENHANCING BIOREMEDIATION OF HYDROCARBONS IN QATARI SOILS
(2018 , Dissertation)Qatar is one of the leading countries in oil and gas industry worldwide. Qatar is located in the middle of the Arabian Gulf sea, a semi-closed sea surrounded by many petrochemical sites, besides the active offshore traffic ... -
Investigation of beech wood modified by radio-frequency discharge plasma
( Elsevier Ltd , 2015 , Article)Low-temperature plasma was used to improve the surface and adhesive properties of wood. The pre-treatment of wood surfaces using radio-frequency (RF) discharge plasma is attractive for various wood applications, mainly ... -
Investigation of Biochemical Alterations in Ischemic Stroke Using Fourier Transform Infrared Imaging Spectroscopy-A Preliminary Study.
( MDPI , 2019 , Article)Brain damage, long-term disability and death are the dreadful consequences of ischemic stroke. It causes imbalance in the biochemical constituents that distorts the brain dynamics. Understanding the sub-cellular alterations ... -
Investigation of differentially expressed genes and dysregulated pathways involved in multiple sclerosis
( Elsevier , 2022 , Book chapter)Multiple Sclerosis (MS) is a neurodegenerative autoimmune and organ-specific demyelinating disorder, known to affect the central nervous system (CNS). While genetic studies have revealed several critical genes and diagnostic ...
