يعرض 681 - 700 نتائج من 770 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( 25 10 decrease ) OR ( a step decrease ))))*', وقت الاستعلام: 0.16s تنقيح النتائج
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    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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    Enhanced Filtration Characteristics and Reduced Bacterial Attachment for Reverse Osmosis Membranes Modified by a Facile Method حسب Nnadiekwe, Chidera C.

    منشور في 2021
    "…Filtration experiments with a high-salinity feed revealed significant improvements in the permeate flux (∼25−40%) and salt rejection (∼10−15%) after the surface modification. …"
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  20. 700

    Experimental study on combustion, performance, and emission behaviours of diesel /WCO biodiesel/Cyclohexane blends in DI-CI engine حسب Elkelawy, Medhat

    منشور في 2021
    "…The experiment activity changed the fuel injection pressure of 150 and 250 bar, respectively, while the WCOB blends of B60D35c5, B60D30c10, and B60D25c15 have been used. The obtained results have been compared with the commercial diesel#1 and B60D40 fuel blends, respectively. …"
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