يعرض 761 - 780 نتائج من 1,525 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( 10 i decrease ) OR ( a system decrease ))))*', وقت الاستعلام: 0.21s تنقيح النتائج
  1. 761

    Sensitization to common food and inhalant allergens in children attending Allergy and Asthma Pediatric Clinic in Doha, Qatar حسب Kerkadi, Abdelhamid

    منشور في 2009
    "…The objective of this study was to estimate the prevalence of sensitization to FA and IA among children attending Allergy and Asthma Pediatric Clinic in Doha, Qatar. A total of 134 children with age between 1 month and 10 years were recruited. …"
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  2. 762
  3. 763

    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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  4. 764
  5. 765

    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. 766

    Fluid-Structure-Acoustic coupling analysis for external laminar and turbulent fluid flows حسب Tohid, Adibi

    منشور في 2023
    "…The results indicate that the transmission loss is 27% more at the elastic plate’s highest position. By decreasing the length of the elastic plate by 50%, the mean transmission loss is reduced by 9%. …"
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    article
  7. 767

    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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  8. 768
  9. 769

    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. 770
  11. 771
  12. 772
  13. 773
  14. 774
  15. 775
  16. 776

    Energy conversion of heat from abandoned oil wells to mechanical refrigeration - Transient analysis and optimization حسب Al-Khawaja, Mohammed

    منشور في 2012
    "…This study investigates the potential of using the geothermal energy from abandoned oils in a novel three-loop system; geothermal, power and cooling loops to produce cooling effect. …"
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  17. 777
  18. 778
  19. 779

    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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  20. 780

    Dietary L-carnitine and vitamin-E; a strategy to combat ochratoxin-A induced immunosuppression حسب Bhatti S.A.

    منشور في 2018
    "…This study aimed to evaluate the effect of dietary ochratoxin A (OA), in the presence and absence of L-carnitine (LC) and vitamin E (VE), on the humoral immune responses of White Leghorn cockerels (WLC). One-day old white male Leghorn chicks were divided into 12 groups, having 20 birds each and were offered ration contaminated with OA (1.0 or 2.0 mg/kg feed) alone and concurrently with LC (1.0 g/kg) and/or VE (0.2 g/kg), for 42 days. …"
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