Browsing Academic by Title
Now showing items 6967-6986 of 25628
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Effect of halloysite nano tubes on the thermal degradation behaviour of PCL/PLA microfibrillar composites
( Elsevier , 2017 , Article)This paper reports on the thermal degradation behaviour and kinetics of halloysite nanotubes containing microfibrillated poly(ε-caprolactone) (PCL)/poly(lactic acid) (PLA) blends. It was found that the nanotubes probably ... -
Effect of halloysite nanotubes on the thermal degradation behaviour of poly(ε-caprolactone)/poly(lactic acid) microfibrillar composites
( Elsevier Ltd , 2017 , Article)This paper reports on the thermal degradation behaviour and kinetics of halloysite nanotubes containing microfibrillated poly(ε-caprolactone) (PCL)/poly(lactic acid) (PLA) blends. It was found that the nanotubes probably ... -
Effect of harvesting methods on the energy requirement of Tetraselmis sp. biomass production and biocrude yield and quality
( Elsevier Ltd , 2019 , Article)A halo-tolerant Tetraselmis sp. was grown in a 100,000 L raceway pond in the Qatari desert environment. As the biomass density reached 0.679 g/L, after 7 days, five different harvesting methods (i.e., cross-flow filtration, ... -
Effect of hexagonal on the in-plane crushing behaviour of plain weave composite hexagonal quadruple ring system
( Taylor and Francis Ltd. , 2019 , Article)In this study, an experimental investigation into the crushing behaviour of one dimensional composite hexagonal cellular structure between two plates has been carried out. The materials have been used to accomplish the ... -
Effect of high pass filtering of the regenerated reference signal in a single channel active noise control system
( International Institute of Acoustics and Vibration, IIAV , 2018 , Conference Paper)An acoustic noise cancellation (ANC) system with regenerative feedback synthesizes its own reference signal based on the error signal and the adaptive filter output. The prime objective of such a configuration is to estimate ... -
Effect of high-velocity scenarios on the performance of MIMO LTE packet scheduling
( IEEE , 2011 , Conference Paper)In this paper we analyze the performance of advanced OFDM packet scheduling techniques based on 3GPP UTRAN Long Term Evolution (LTE) framework for high velocity scenarios. Based on our previous investigations in system ... -
Effect of hot extrusion and T6 heat treatment on microstructure and mechanical properties of Al-10Zn-3.5Mg-2.5Cu nanocomposite reinforced with graphene nanoplatelets
( Elsevier Ltd , 2018 , Article)Al-10Zn-3.5Mg-2.5Cu/graphene nanocomposites were developed by a combination of liquid metallurgy and hot extrusion techniques. The effect of varying graphene content (0.1%, 0.3%, 0.7% and 1.0%) on microstructure and ... -
The Effect Of Hotel Online Reviews On The Booking Intention Of Customers
(2018 , Professional Masters Project)The motivation behind this research is to examine the impact of hotel online reviews have on a customer’s booking intention. The number of hotel bookers that follow online hotel reviews and online bookings are increasing ... -
Effect of humidity on the electrical properties of the silver polyaniline/polyvinyl alcohol nanocomposites
( Elsevier B.V. , 2019 , Article)Polymer-metal nanocomposites with enhanced mechanical, optical, electrical, dielectric, and antimicrobial properties are currently in high demand for many industrial applications. Here, we study and present the effect of ... -
Effect Of Hydrocortisone On The Skin Of The Developing Chick Embryo
( Qatar University , 1986 , Article)Hydrocortisone treatment of chick embryos caused acceleration of epidermis thickening and keratinization, decrease in dermal cell number and increase of dermal collagenous fibres. The hormone also caused a marked increase ... -
Effect of Hydrothermal Carbonization Parameters and Performance of Carbon Dioxide Adsorption on Pineapple Peel Waste Biochar
( Wiley-Blackwell , 2022 , Article)Low-cost biochar adsorbents were prepared from pineapple peel waste (PPW) via hydrothermal carbonization (HTC) for CO2 capture. The effects of hydrothermal carbonization temperature, retention time, and heating rate were ... -
Effect of Hyperglycemia on eNOS function in EPCs
( Qatar University Press , 2020 , Poster)Type 2 diabetes mullites (T2DM) results in different cardiovascular complications. The main cause of these complications is endothelial dysfunction, which affects the endothelium physiologically and pathologically. The ... -
Effect of hyperglycemia on EPCs function and regenerative ability
( Qatar University Press , 2020 , Poster)Diabetes induced hyperglycemia increases the risk of cardiovascular complications as it impacts vascular endothelial cells causing vascular dysfunction. Endothelial progenitor cells (EPCs) have been suggested to participate ... -
Effect of hyperlipidemia on ketoconazole-midazolam drug-drug interaction in rat
( John Wiley & Sons, Ltd. , 2011 , Article)Hyperlipidemia (HL) was previously shown to lower liver uptake of the more potent (-) enantiomer of ketoconazole (KTZ) in rat. The current study examined the possible modifying influence of experimental HL on a KTZ ... -
The Effect of Hyperoxia on Central and Peripheral Factors of Arm Flexor Muscles Fatigue Following Maximal Ergometer Rowing in Men
( Frontiers Media S.A. , 2022 , Article)Purpose: This study evaluates the effect of hyperoxia on cerebral oxygenation and neuromuscular fatigue mechanisms of the elbow flexor muscles following ergometer rowing. Methods: In 11 competitive male rowers (age, 30 ± ... -
Effect of hypoxia on metabolic markers and gene expression HIF-1 α in adipocytes
(2015 , Master Thesis)Background: Docosahexaenoic acid (DHA; omega-3 fatty acid) has been reported to have potential anti-obesity properties. Hypoxia is a condition that results from the excessive expansion of white adipose tissue resulting in ... -
The Effect of ICT on CO2 Emissions in the GCC Countries: Does Globalization Matter?
( econjournals , 2022 , Article)Despite the significant impact of information and communication technologies (ICTs) on environment, whether globalization enhances the role of ICT in environmental quality is a question that received limited research ... -
Effect of illumination and applied potential on the electrochemical impedance spectra in triple cation (FA/MA/Cs) 3D and 2D/3D perovskite solar cells
( Elsevier , 2021 , Article)Even though there has been numerous works performed based on electrochemical impedance spectroscopy (EIS) of perovskite solar cells (PSCs), however, many aspects of the obtained EI spectra are yet to be fully grasped. ... -
Effect of Immediate Administration of Antibiotics in Patients With Sepsis in Tertiary Care: A Systematic Review and Meta-analysis
( Elsevier , 2017 , Article)Purpose The goal of this review was to synthesize existing evidence regarding outcomes (mortality) for patients who present to the emergency department, are administered antibiotics immediately (within 1 hour) or later (>1 ... -
Effect of Inconel625 particles on the microstructural, mechanical, and thermal properties of Al-Inconel625 composites
( Elsevier Ltd , 2020 , Article)This research work investigates the effect of concentration of Inconel625 particles on the microstructural, mechanical, and thermal properties of Al-Inconel625 composites. The Al-Inconel625 composites containing varying ...