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601
Numerical investigation of steady air injection flow to control rotating stall in centrifugal compressors
Published 2014“…Numerical model was built to simulate high speed transonic centrifugal compressor working at an operating point close to surge. Air was injected at 12 locations at the vaneless region between the impeller and the diffuser at shroud surface with 5 different injection angles and 3 different injection mass flow rates. …”
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602
Mycoremediation of Tunisian tannery wastewater under non-sterile conditions using Trametes versicolor: live and dead biomasses
Published 2022“…Laccase activity reached a maximum of 7.975 U/L (pH = 8.25) and 20 U/L (pH = 5.5) after 5 days of treatment. …”
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603
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604
Enhancement of mechanical and corrosion resistance properties of electrodeposited NiP-TiC composite coatings
Published 2021“…Vickers microhardness and nanoindentation results demonstrate the increase in the hardness with an increasing amount of TiC particles attaining its terminal value (593HV100) at the concentration of 1.5 g L−1. Further increase in the concentration of TiC particles results in a decrease in hardness, which can be ascribed to their accumulation in the Ni–P matrix. …”
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605
Automatic Sleep Arousal Detection Using State Distance Analysis in Phase Space
Published 2018“…We first show how the states distance matrices of a complex system can be reconstructed to decrease the effect of false neighbors. …”
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606
Thermal properties of phase-change materials based on high-density polyethylene filled with micro-encapsulated paraffin wax for thermal energy storage
Published 2015“…Microcapsules consisting of paraffin wax cores with a melting point of approximately 42 °C and a melamine-formaldehyde resin shell were synthesized using in situ polymerization. …”
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607
Solvent Uptake of Liquid Rubber Toughened Epoxy/Clay Nanocomposites
Published 2016“…With a further increase of CTBN, the diffusion coefficient was found to decrease. …”
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608
Radiofrequency Ablation Versus Antiarrhythmic Drug Therapy for Atrial Fibrillation: Meta-analysis of Safety and Efficacy
Published 2019“…BACKGROUND: Radiofrequency ablation (RFA) and antiarrhythmic drugs (AADs) are the main treatments used for atrial fibrillation (AF). In recent years, a number of articles comparing the 2 treatments have begun to emerge. …”
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609
Investigating the utilization of healthcare services to manage respiratory tract infections (RTIs) among Qatari patients attended selected primary healthcare centers in Qatar
Published 2018“…We have found no difference in the month-to-month rates of RTI-related GP visits (per 1000 total visits) over the study period (non-significant decreasing trend). However, there was a significant decreasing trend in the monthly rates of antibiotics consumption and an increasing trend in the tests/investigations done but there was no clear increasing or decreasing trend in the monthly rates of other medications use. …”
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610
Study of performance, combustion, and emissions parameters of DI-diesel engine fueled with algae biodiesel/diesel/n-pentane blends
Published 2021“…The carbon monoxide and oxygen concentrations of the exhaust gases also decreased by 17.35% and 9.5%, respectively compared to B50. …”
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611
Assessment And Classification Of Transit Stations For Transit Oriented Development (Tod) Potential Using Node-Place Model: The Case Of Doha Gold Metro Line
Published 2018“…Qatar, faces an unprecedented challenge in meeting the growing travel demand constrained by limited land and mediocre infrastructure. Recently as a result of the award for hosting of the world cup to Qatar, the State is introducing a metro system to both service the world cup as well as address its transportation problems. …”
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612
DC conductivity and Seebeck coefficient of nonstoichiometric MgCuZn ferrites
Published 2017“…Nonstoichiometric series of Mg0.5-xCuxZn0.5Fe1.9O4-? where x = 0.0, 0.1, 0.15, 0.2 and 0.25 has been synthesized by conventional solid state reaction route. …”
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613
Mercury pollution in doha (Qatar) coastal environment
Published 1994“…m sediment fraction. There is a general trend for all Hg species determined in water and sediments to decrease seaward. …”
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614
Effects of soaking, acidity and temperature on cadmium and lead removal from rice
Published 2020“…A decrease in lead and cadmium concentrations were observed with increasing time of soaking. …”
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615
Influence of the heteroatom on the optoelectronic properties and transistor performance of soluble thiophene-, selenophene- and tellurophene-vinylene copolymers
Published 2016“…The optical band gap of the polymers is shown to systematically decrease as the size of the heteroatom is increased, mainly as a result of a stabilization of the LUMO energy, resulting in a small band gap of 1.4 eV for P3TeV. …”
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616
EPIDEMIOLOGY OF CHLAMYDIA TRACHOMATIS IN LATIN AMERICA AND THE CARIBBEAN: SYSTEMATIC REVIEW, META-ANALYSES, AND META-REGRESSIONS
Published 2022“…Background: Chlamydia trachomatis (CT) is a Sexually Transmitted Disease (STD); it leads to health complications and infertility if not treated. …”
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617
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618
Structural, wear and thermal behaviour of Cu–Al2O3–graphite hybrid metal matrix composites
Published 2020“…Copper matrix composites with Al2O3–graphite reinforcement (0.5-0.5, 1.0-1.0, 1.5-1.5 and 2.0-2.0 wt%) were prepared by stir casting process. …”
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619
Thermodynamic evaluation of hydrazine assisted glycerol reforming for syngas production and coke inhibition
Published 2018“…The analysis was performed at temperatures from 300K to 1000K under unit atmospheric pressure. A comparative study on steam reforming of glycerol (SRG) and glycerol reforming reaction with hydrazine has been conducted in the presence of hydrazine that act as a suitable reducing agent. …”
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620
Impact of Pulsed Dielectrophoretic Supply on the Function of Microorganisms in Membrane Bioreactors
Published 2018“…This study aims to investigate the effect of dielectrophoretic (DEP) force on microorganisms' viability in a membrane bioreactor (MBR). The impact of different electrical potentials (5-150 V) and different exposure durations (20-120 min) on the viability of microorganisms were studied. …”
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