يعرض 141 - 160 نتائج من 879 نتيجة بحث عن '(( 10 11 decrease ) OR ( 10 ((peer decrease) OR (((nn decrease) OR (mean decrease)))) ))*', وقت الاستعلام: 0.15s تنقيح النتائج
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    Towards understanding the effects of climatic and environmental factors on solar PV performance in arid desert regions (Qatar) for various PV technologies حسب Touati F.

    منشور في 2012
    "…It was estimated that 100 days of dust accumulation over mono-crystalline PV panels, caused the efficiency to decrease by around 10%. This limitation makes solar PV an unreliable source of power for unattended or remote devices and thus strongly suggests the challenge of cleaning the panel's surface regularly or injecting technical modifications. …"
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