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521
Development of Internally Pressurized Composite/Metallic/Composite Hybrid Pipes
Published 2021“…The testing results showed significant improvement in the internal pressure capacity compared to the conventional steel pipes. Fourth, a detailed evaluation of fiber type’s effect on the electrochemical corrosion aspects in different highly corrosive solutions, 0.5 M NaCl, 0.5 M HCl, and 0.5 M H2SO4, was presented. …”
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522
The spectral and morphological studies of the conductive polyaniline thin film derivatives by the in situ copolymerization
Published 2017“…The blue shift in the band indicates that there is a decrease in the extent of conjugation system along the copolymer. …”
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523
Self-healing performance of smart coatings modified with different corrosion inhibitors.
Published 2020“…EIS measurements revealed the decent corrosion inhibition efficiency of these inhibitors in order of DDA>NMTU. As a result, they are a favorable solution for longer endurance of coated piping steel and decreased operation expense contributing to economic saves, materials reliability and safety…”
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524
Mixed Solid Municipal Waste-Based Biochar for Soil Fertility and Greenhouse Gas Mitigation
Published 2016“…Municipal solid waste management is one of the major challenges facing Qatar with more than 2.5 million tons of municipal solid waste each year, a very high waste generation rate in a country with small land mass. …”
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525
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526
Tobacco Use and Its Health Effects among Professional Athletes in Qatar
Published 2016“…The objective of the study was to determine the effects of tobacco use on selected markers of health and lung function in professional athletes. A total of 108 male professional athletes participated in the study from ten ball game teams in the same sport league in Qatar (age = 26.4 ± 5.1 yrs, height = 190.6 ± 11.9 cm, and weight = 91.5 ± 16.4 kg). …”
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527
Assessment of Urban Heat Islands Based on the Relationship Between Land Surface Temperature and Land Use/Land Cover in Greater Doha
Published 2020“…Furthermore %LULC of built up, vegetation, barren land, marsh land and water body were 29%, 4.5%, 58.6%, 2.8% and 5% in 2000 and 56.5 %, 8.2%, 33.2 %, 0% and 2.1% in 2019 respectively. …”
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528
Simulation and experimental study of underwater dissimilar friction-stir welding between aluminium and steel
Published 2020“…Thethickness of the IMC layer varied depending on the processing parameters with the lowestvalue of ?0.2-m. The formation of a curved interface due to enhanced materials mixing atthe advancing side is noted with a linear hardness gradient across the dissimilar weldment.Superior mechanical strength of ?…”
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529
Study the efficiency of Ultrasonic Technology in Removal of Algae from Surface Waters
Published 2024“…The dominant algae genus was identified using a light microscope, and ultrasound waves with a low frequency of 40 kHz and a power density of 0.024 W/cm³ were applied at different time intervals (0 – 80 minutes) at time intervals of 5 minutes. …”
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530
Magnetorheological damper with external excitation for more efficient control of vehicles? dynamics
Published 2018“…The experimental tests made on the first prototype featuring this new technology was promising. The excitation of a set of 12 coils surrounding the body of the damper, by an electric current of 5 A, managed to increase the damping coefficient by up to 75%. …”
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531
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532
Impact of combined oil-in-water emulsions and particulate suspensions on ceramic membrane fouling and permeability recovery
Published 2019“…The addition of 1500 mg·L−1 of bentonite to a 10 vol.% emulsion resulted in a permeability decrease of 3.5–5 times over that recorded for the emulsion, and 8–36 times lower than that of the bentonite suspension. …”
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533
High-Rate Anaerobic Digestion of Waste Activated Sludge by Integration of Electro-Fenton Process
Published 2020“…Production of biogas was also found to improve during semi-continuous fermentation of EF-pretreated sludge conducted in a lab-scale reactor. In comparison to raw sludge, EF-pretreated sludge produced the highest biogas yield (0.81 L biogas/g VS) with a high COD removal rate, reaching 96.6% at an organic loading rate (OLR) of 2.5 g VS/L. d. …”
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534
Correlation between delta-endotoxin and proteolytic activities produced by Bacillus thuringiensis var. kurstaki growing in an economic production medium
Published 2013“…Maximal protease activity (540-2468 UI) obtained by BUPM5-1 and BUPM5-2 was 2.34-fold and 10.7-fold, respectively, more than that obtained by the wild strain BUPM5 with a drastic decrease of their delta-endotoxin production. …”
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535
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536
Analysis of dopant diffusion in molten germanium induced by pulsed nd : yag laser
Published 1995“…Doped sample Tann = 200- 500 C for time t mn = 45 subjected to subsequent thermal annealing (at the temperature and to plused leacr annealing (en<5rgy density in a min) pluse E=5.2 - 9.5 J/cm2) in order to establish optimal condition. …”
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537
Food shopping, preparation and consumption practices in times of COVID-19: case of Lebanon
Published 2022“…Indeed, the study outcomes suggested (1) a move toward healthier diets; (2) a rise in the consumption of domestic products due to food safety concerns; (3) a change in the grocery shopping behaviors (with a rise in online shopping); (4) a surge of food stockpiling; and (5) a decrease in household food wastage. …”
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538
Biodegradable polysaccharide grafted polyacrylamide inhibitor for corrosion in CO2- saturated saline solution
Published 2023“…Lastly, potentiostatic testing of steel with AGGPAM at an applied potential of 50 mV illustrated surface protection and decreased current over a prolonged time. …”
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539
Arabic gum as green agent for ZnO nanoparticles synthesis: properties, mechanism and antibacterial activity
Published 2017“…The size of the spherically shaped ZnO NPs decreased with an increase in the amount of Arabic gum, up to an optimal 1.50 wt%. …”
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540