يعرض 621 - 640 نتائج من 1,075 نتيجة بحث عن '(( 50 ((mean decrease) OR (a decrease)) ) OR ((( a step decrease ) OR ( 5 10 decrease ))))*', وقت الاستعلام: 0.20s تنقيح النتائج
  1. 621
  2. 622

    Utilization of Two Microalgae Species, Synechococcus sp. and Cheatoceros sp., for Aquatic Toxicity Assessments in the Qatari Marine Environmen حسب Bacha, Sarah

    منشور في 2016
    "…The cultures were maintained at 22 ± 1.0°C, under a 14 h:10 h/light:dark cycle provided by cool white fluorescence light (7000 ± 10% lux), in nutrient-enriched synthetic seawater (F/2 medium) at pH 8.0 ± 0.5 and salinity 40 g/L. …"
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  3. 623

    The influence of aeration scheme and aeration rate on the permeate flux for wastewater treatment using membrane bioreactors: Experimental and artificial neural network modeling حسب Jawad, Jasir

    منشور في 2021
    "…In this paper, the effect of time, aeration scheme, aeration rate, and mixed liquor suspended solid (MLSS) concentration on the permeate flux in membrane bioreactors have been studied. Aeration rates of 0.5, 1.0, and 1.5 LPM were tested with MLSS concentrations of 5, 10, and 15 g/L. …"
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  4. 624
  5. 625

    Mechanical and physical behavior of newly developed functionally graded materials and composites of stainless steel 316L with calcium silicate and hydroxyapatite حسب Ataollahi Oshkour, Azim

    منشور في 2015
    "…Compressive mechanical properties of SS-316L/HA decreased sharply with increasing of HA content up to 20. wt% and gradually with CS content up to 50. wt% for SS-316L/CS composites. …"
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  6. 626
  7. 627
  8. 628

    Biodegradable thermoplastic polyurethane composites as potential plating systems in pediatric facial fractures حسب ALANI, AYA AHMED

    منشور في 2022
    "…Due to the rapid growth of facial bone in the pediatric age group, the use of metallic plates would require a second surgical intervention to remove it. The alternative is biodegradable plating systems which are safe but not without complications, including learning curve, decreased stability, cost, and infection. …"
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  9. 629
  10. 630
  11. 631
  12. 632
  13. 633
  14. 634

    Ion beam modification of surface properties of polyethylene حسب Andrzej, Turos

    منشور في 2003
    "…In contrast, ion bombardment does not produce significant changes of tribological parameters in 5050 blend and LDPE.…"
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  15. 635

    Phase, microstructure and tensile strength of Al–Al2O3–C hybrid metal matrix composites حسب Ahamad, N.

    منشور في 2020
    "…Aluminium matrix reinforced with Al2O3–carbon (2.5, 5, 7.5 and 10 wt.%) in equal proportion was prepared by stir casting. …"
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  16. 636
  17. 637

    The Performance of Aluminium Electrolysis in A Low Temperature Electrolyte System حسب Cui, Peng

    منشور في 2016
    "…The cryolite ratio of molar concentrations of alkali fluorides and aluminium fluoride KR = (NKF+ NNaF)/NAlF3, was always retained constant, equal to 1.3 or 1.5. The cryolite‐based melts contained 5 and 10 mass% NaF. …"
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  18. 638

    Nitrogen Transformations as affected by some factors at cultivated soils in Saudi Arabia حسب Al Falih, Abdullah M. [عبد الله مساعد خلف الفالح]

    منشور في 2001
    "…The influence of serial concentration of salts (0.5, 1.0 and 1.5%), application of organic matter (0.5, 1.0 and 1.5% of wheat strat) and varying soil moisture content 50, 70 and 90%) on nitrification in sandy loam soil was studied. …"
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  19. 639

    Nitrogen Transformations As Affected By Some Factors at Cultivated Soils In Saudi Arabia حسب Al Falih, Abdullah M. [عبد الله مساعد خلف الفالح]

    منشور في 2000
    "…The influence of serial concentration of salts (0.5, 1.0 and 1.5%), application of organic matter (0.5, 1.0 and 1.5% of wheat straw) and varying soil moisture content (50, 70 and 90%) on nitrification in sandy loam soil was studied. …"
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  20. 640