يعرض 841 - 860 نتائج من 1,776 نتيجة بحث عن '(( 13 c decrease ) OR ( 10 ((steel decrease) OR (((nn decrease) OR (a decrease)))) ))*', وقت الاستعلام: 0.15s تنقيح النتائج
  1. 841
  2. 842
  3. 843

    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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  4. 844
  5. 845
  6. 846
  7. 847
  8. 848

    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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  9. 849

    Utilization of Two Microalgae Species, Synechococcus sp. and Cheatoceros sp., for Aquatic Toxicity Assessments in the Qatari Marine Environmen حسب Bacha, Sarah

    منشور في 2016
    "…The cultures were maintained at 22 ± 1.0°C, under a 14 h:10 h/light:dark cycle provided by cool white fluorescence light (7000 ± 10% lux), in nutrient-enriched synthetic seawater (F/2 medium) at pH 8.0 ± 0.5 and salinity 40 g/L. …"
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  10. 850

    Deoxygenation of pyrolysis vapour derived from durian shell using catalysts prepared from industrial wastes rich in Ca, Fe, Si and Al حسب Tan, Y.L.

    منشور في 2020
    "…The presence of AS-OPA and AS-EAF catalysts enhanced deoxygenation degree of bio-oil to 81.13% and 85.49%, respectively. The catalytic performance of AS-EAF at different temperatures (400–600 °C) and AS-EAF/durian shell ratios (1:30, 2:30, 3:30) was investigated. …"
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  11. 851
  12. 852
  13. 853
  14. 854
  15. 855
  16. 856

    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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  17. 857
  18. 858

    Enhancement of mechanical and corrosion resistance properties of electrodeposited NiP-TiC composite coatings حسب Fayyaz O.

    منشور في 2021
    "…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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  19. 859
  20. 860

    Impact of Pulsed Dielectrophoretic Supply on the Function of Microorganisms in Membrane Bioreactors حسب Larbi B.

    منشور في 2018
    "…At high electrical potentials (100 and 150 V), the microbial activity decreased as a result of the increased current flow and temperature build up due to the Joule heating effect. …"
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