يعرض 281 - 300 نتائج من 1,811 نتيجة بحث عن '(( 10 10 decrease ) OR ( 10 ((ng decrease) OR (((nn decrease) OR (mean decrease)))) ))*', وقت الاستعلام: 0.14s تنقيح النتائج
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    Tests of a diamond field-assisted positron moderator حسب Al-Qaradawi, I. Y.

    منشور في 2002
    "…A potential difference of up to 300 V could be held across the film with a leakage current of ∼ 10 nA. Although positron re-emission was observed from the diamond surface, the re-emitted fraction was observed to decrease when a bias of 300 V was applied across the film. …"
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  5. 285

    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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  6. 286

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

    منشور في 2021
    "…Various amounts of TiC particles (0, 0.5, 1.0, 1.5, and 2.0 g L−1) were co-electrodeposited in the Ni–P matrix under optimized conditions and then characterized by employing various techniques. …"
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  7. 287

    Estimating the production and mortality of fine roots using minirhizotrons in a Pinus densiflora forest in Gwangneung, Korea حسب Han, Seung Hyun

    منشور في 2016
    "…Both FP and FM at the 0–10 cm depth were significantly higher than at 10–20 and 20–30 cm depths, and this resulted from the decrease in nutrient availability with increasing soil depth. …"
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    Concrete Pavement Truck Equivalence Factors For Upgrades حسب Razouki, Sabah Said

    منشور في 1999
    "…The upgrade truck equivalence factors were developed taking into consideration the following three values for upgrade namely; 0%, 8% and 12%, four values of slab thickness namely; 6, 8, 10 and 12 inches (15.24, 20.32, 25.40 and 30.48cm) and two extreme ratios of H / B of 0.2 and 1.0. …"
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    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
    "…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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  17. 297
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    Enhanced photovoltaic performance with co-sensitization of a ruthenium(ii) sensitizer and an organic dye in dye-sensitized solar cells حسب Mehmood, Umer

    منشور في 2016
    "…This performance is superior to that of solar cells sensitized with either N3 (6.10%) or RK-1 (5.82%) fabricated under the same conditions. …"
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    Microstructure, wear and corrosion characteristics of Cu matrix reinforced SiC–graphite hybrid composites حسب Jamwal A.

    منشور في 2019
    "…Copper matrix composites with SiC-graphite reinforcement (0, 2.5,5, 7.5 and 10 wt.%) were prepared by stir casting process. …"
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