يعرض 661 - 680 نتائج من 1,763 نتيجة بحث عن '(( 3 point decrease ) OR ( 10 ((((ng decrease) OR (nn decrease))) OR (a decrease)) ))', وقت الاستعلام: 0.34s تنقيح النتائج
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    Numerical investigation of steady air injection flow to control rotating stall in centrifugal compressors حسب Halawa, Taher

    منشور في 2014
    "…Numerical model was built to simulate high speed transonic centrifugal compressor working at an operating point close to surge. Air was injected at 12 locations at the vaneless region between the impeller and the diffuser at shroud surface with 5 different injection angles and 3 different injection mass flow rates. …"
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  17. 677

    Pilot-scale petroleum refinery wastewaters treatment systems: performance and microbial communities' analysis حسب Karray, Fatma

    منشور في 2020
    "…Decreasing HRT to 5 and 2.5 days led to a decrease in the efficiency of the process and a decrease in biomass concentration was also observed (<1000 mg/l). …"
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