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a decrease » _ decrease (Expand Search), _ decreased (Expand Search), _ decreases (Expand Search)
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Qatar Culture Collection of Microalgae: A Sustainable Source for Biodiesel Production and Omega Fatty Acid Compounds
Published 2016“…Nannochloris sp. showed the highest amount of total lipid (28.5%) followed by Chlorocystis sp. isolates with a total lipid amount of (19.5–21.5%) and later comes the Tetraselmis sp. strains with a total lipid content of (17.8–20.3%). …”
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Mechanical Behavior of a Novel Nanocomposite Polysulphone - Carbon Nanotubes Membrane for Water Treatment
Published 2016“…The commercial CNTs had a lengths of 1 ?m to 10 ?m and outer diameters of 10 nm to 20 nm (corresponded aspect ratios ranging from 50 to 1000), with purity >95% and BET surface area of 156 m2/g. …”
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A dynamic MOPSO algorithm for multiobjective optimal design of hybrid renewable energy systems
Published 2014“…Additionally, the set coverage metric value shows that at least 67% of Pareto solutions obtained by DMOPSO dominate the solutions resulted by other reported algorithms. By using a sensitivity analysis for the case study, it is found that if the PV panel and wind turbine capital cost are decreased by 50%, the total NPC of the system would be decreased by 18.8 and 3.7%, respectively.…”
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Experimental study of exhaust emissions and performance of a dual fuel IDI diesel engine
Published 1999“…Dual fuel engines of the compression ignition type provide an alternative approach for I.C. engines to improve economy, reduce exhaust emissions and achieve a greater power. The present contribution is an experimental investigation to evaluate such a statement using a modified Ricardo E6 indirect injection diesel engine. …”
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Box-Behnken approach for optimization of Cr(III) removal from a real tanning effluent using powdered marble
Published 2022“…The results showed that the maximum uptake (> 99%) was obtained at a chromium initial concentration of 0.758�g/L, pH = 5.0 and using 6% (w:v) of powdered marble. …”
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Environment Degradation and Economic Growth in the Qatar Economy: Evidence from a Markov Switching Equilibrium Correction Model
Published 2016“…After reaching a critical level of income, the spending on environment protection is increased, and hence environment degradation tend to decrease. …”
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Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar
Published 2023“…The post-first omicron phase saw a drastic drop to 0.10 (95% CI 0.08 to 0.14) per 1000 person years, a 95.4% reduction. …”
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Optimization of cultivation conditions for combined nutrient removal and CO2 fixation in a batch photobioreactor
Published 2017“…At 22% CO2 the Rc and μ decreased by around an order of magnitude, and nutrient removal also decreased to 79% and 50% for N and P, respectively. …”
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