يعرض 881 - 900 نتائج من 1,766 نتيجة بحث عن '(( 12 c decrease ) OR ( 10 ((steel decrease) OR (((a decrease) OR (mean decrease)))) ))*', وقت الاستعلام: 0.14s تنقيح النتائج
  1. 881
  2. 882
  3. 883

    Use and assessment of “e-plastics” as recycled aggregates in cement mortar حسب Makri, Chrysanthi

    منشور في 2019
    "…The replacement percentages (RPs) used were 2.5%, 5%, 7.5%, 10% and 12.5%, while the water to cement (w/c) ratio was maintained constant at 0.5 in all tests. …"
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  4. 884
  5. 885
  6. 886
  7. 887

    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. 888
  9. 889
  10. 890
  11. 891

    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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  12. 892
  13. 893
  14. 894
  15. 895
  16. 896
  17. 897
  18. 898
  19. 899
  20. 900

    Changes in air quality during the first-level response to the COVID-19 pandemic in Shanghai Municipality, China حسب Bai, Yang

    منشور في 2020
    "…The results showed that air quality improved significantly During-FLR compared with Pre-FLR, with the concentrations of PM2.5, PM10, SO2, NO2, and CO all decreasing significantly. …"
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