يعرض 861 - 880 نتائج من 1,806 نتيجة بحث عن '(( 20 1 decrease ) OR ( 10 ((steel decrease) OR (((nn decrease) OR (a decrease)))) ))*', وقت الاستعلام: 0.16s تنقيح النتائج
  1. 861
  2. 862

    Screening of Qatari Microalgae and Cyanobacteria for Application in CO2 Utilization حسب Schipper, Kira

    منشور في 2018
    "…The most productive strain was Tetraselmis sp., with a maximum biomass productivity of 157.7 ± 10.9 mg L-1 d-1 at 30˚C, with a decreasing productivity for increasing temperatures. …"
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  3. 863
  4. 864
  5. 865
  6. 866
  7. 867

    Enhancing the production of biogas through anaerobic co-digestion of agricultural waste and chemical pre-treatments حسب Almomani F.

    منشور في 2020
    "…The results revealed that the highest cumulative methane production (CMP) of 297.99 NL/kgVS can be generated by co-digestion of ASWs and CD at a ratio of 60:40. Further improvement was achieved via alkalinity treatment with 1.0 g of NaHCO3/gVS leading to decrease in lignin, cellulose, and hemicellulose contents of feedstock by 3.5%, 10.5% and 15.9%, respectively, converting them to soluble fractions and improving the CMP by 11.2–29.7% based on substrate quality. …"
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  8. 868
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  11. 871
  12. 872

    Study of performance, combustion, and emissions parameters of DI-diesel engine fueled with algae biodiesel/diesel/n-pentane blends حسب Elkelawy, Medhat

    منشور في 2021
    "…Due to the disadvantages of using pure biodiesel in engines, it was used as B50 (a blend of 50% diesel and 50% biodiesel). To enhance engine performance, n-pentane was used in different extents of 5, 10, and 15 ml per liter as an enhancer additive. …"
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  13. 873
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  18. 878
  19. 879

    Performance of sustainable concrete incorporating treated domestic wastewater, RCA, and fly ash حسب Abushanab, Abdelrahman

    منشور في 2022
    "…Test results revealed that TWW slightly reduced concrete mechanical properties by 6% to 12%, while it drastically reduced the chloride permeability by 77% in comparison with freshwater concrete. In addition, RCA decreased concrete compressive and flexural strengths by 21% and 10%, respectively, compared to natural aggregate concrete. …"
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  20. 880