يعرض 561 - 580 نتائج من 1,394 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( 10 i decrease ) OR ( 2 step decrease ))))*', وقت الاستعلام: 0.29s تنقيح النتائج
  1. 561

    Enhancing the production of biogas through anaerobic co-digestion of agricultural waste and chemical pre-treatments حسب Almomani F.

    منشور في 2020
    "…Further improvement was achieved via alkalinity treatment with 1.0 g of NaHCO3/gVS leading to decrease in lignin, cellulose, and hemicellulose contents of feedstock by 3.5%, 10.5% and 15.9%, respectively, converting them to soluble fractions and improving the CMP by 11.2–29.7% based on substrate quality. …"
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  2. 562
  3. 563
  4. 564

    Changes in Copepod Community Structure in Response to Land-Based Activities along Alexandria Coastline, Mediterranean Sea حسب El Din, Nehad M. Nour [نهاد مصطفى نور الدين]

    منشور في 2000
    "…Industrial discharge exerted the highest impact on the copepod population by decreasing its density to less than 500 ind./m3. Despite the decrease m copepod abundance during high flow of sewage, the impacted area sustained the maximum copepod density low discharge i.e. 11,222 ind.…"
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  5. 565
  6. 566

    Effect of binary mixture of waste plastics on the thermal behavior of pyrolysis process حسب Pek, Wee Kiat

    منشور في 2015
    "…It was also found that secondary reaction occurred when mixing two types of plastics. The activation energy of the first step pyrolysis reaction is also higher than the secondary reaction. …"
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  7. 567

    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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  8. 568
  9. 569

    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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  10. 570
  11. 571

    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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  12. 572

    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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  13. 573

    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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  14. 574
  15. 575

    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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  16. 576
  17. 577
  18. 578
  19. 579

    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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  20. 580