يعرض 541 - 560 نتائج من 1,388 نتيجة بحث عن '(( 50 ((peer decrease) OR (((a decrease) OR (nn decrease)))) ) OR ( 10 i decrease ))', وقت الاستعلام: 0.16s تنقيح النتائج
  1. 541
  2. 542

    Improvement of both lipid and biomass productivities of Qatar Chlorocystis isolate for biodiesel production and food security حسب Saadaoui, Imen

    منشور في 2018
    "…Indeed, culturing QUCCCM14 using f/2 medium with 10× NaH2PO4 (0.15 g L−1 NaNO3 and 5.6 mg L−1 NaH2PO4) resulted in an improvement of 3.178 folds the lipid productivity reaching 56.121 mg L−1 day−1 and enhanced the biomass productivity reaching 141.363 mg L−1 day−1, simultaneously. …"
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  3. 543
  4. 544

    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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  5. 545

    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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  6. 546

    Novel fluorinated surfactants for enhanced oil recovery in carbonate reservoirs حسب Al-Amodi, Adel O.

    منشور في 2016
    "…However, betaine‐based co‐surfactant reduced the IFT to 10−3 mN/m. An adsorption isotherm showed that the maximum adsorption of surfactant‐A was 1 mg per g of rock. …"
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  7. 547
  8. 548
  9. 549

    Estimating and decomposing changes in the White–Black homeownership gap from 2005 to 2011 حسب Seah, Kiat Ying

    منشور في 2015
    "…In fact, we find that the gap decreased for households that were the least likely to own and remained unchanged for households that were the most likely to own, and that Black households with around a 50% probability of homeownership were especially vulnerable to the crisis. …"
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  10. 550
  11. 551
  12. 552
  13. 553

    Synthesis of High-Antifouling and Antibacterial Ultrafiltration Membranes Incorporating Low Concentrations of Graphene Oxide حسب Alkhouzaam, Abedalkader Ibraheem

    منشور في 2020
    "…Membrane treatment for wastewater treatment is one of the promising solutions to affordable clean water. It is a developing technology throughout the world and considered as the most effective and economical method available. …"
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  14. 554
  15. 555
  16. 556
  17. 557
  18. 558
  19. 559
  20. 560

    Effect of using Cement Kiln Dust as a nano-material on the strength of cement mortars حسب Alnahhal, Wael

    منشور في 2017
    "…In addition to the control cement mortar mixture with 0% CKD, a total of 28 concrete mortar mixtures were prepared with four different replacement percentages of nano-CKD (5, 10, 15, and 20 %), and seven different milling times (1, 1.5, 2, 2.5, 3, 3.5, and 4 hours). …"
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