يعرض 481 - 500 نتائج من 1,284 نتيجة بحث عن '(( 1 m decrease ) OR ( 5 ((meter decrease) OR (((mean decrease) OR (a decrease)))) ))', وقت الاستعلام: 0.31s تنقيح النتائج
  1. 481
  2. 482

    Modified zno nanoparticles using iron ions (Fe3+) for photo-catalytic degradation of toxic pollutants under sunlight حسب Ba-Abbad, Muneer M.

    منشور في 2019
    "…The photocatalytic activities of pure ZnO and Fe-ZnO samples were evaluated based on the degradation of 2-chlorophenol in an aqueous solution under the sunlight. The samples with a small concentration of Fe3+ ions showed enhanced photocatalytic activity with an optimal maximum performance at 0.5 wt. %. …"
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  3. 483

    Enhancing the Remediation Capacity of Mercury Ions from Fluorescent Lamp Using Roasted Date Pits and Its Modified Forms حسب Al-Ghouti, Mohammad A.

    منشور في 2016
    "…Moreover, at pH 8 and pH 10, the adsorption decreased with an average Hg concentration of 3.5 and 8.01 ppm, respectively. …"
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  4. 484

    Arabic gum as green agent for ZnO nanoparticles synthesis: properties, mechanism and antibacterial activity حسب Ba-Abbad, Muneer M.

    منشور في 2017
    "…The optical properties of ZnO NPs, with a band gap of 3.4 eV and enhanced intensity of blue emission, were the result of the smaller size of ZnO at the optimal amount of Arabic gum. …"
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  5. 485

    Tobacco control in the Eastern Mediterranean region: implementation progress and persisting challenges حسب Abu-Rmeileh, Niveen M E

    منشور في 2022
    "…Tobacco use is the leading cause of preventable mortality worldwide, projected to claim 1 billion lives in the twenty-first century.1 Tobacco prevalence rates are expected to decrease across all the WHO regions by 2025 as a result of tobacco control efforts. …"
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  6. 486
  7. 487
  8. 488
  9. 489

    Effect of the length of silicon nano-dot/wire on band gap حسب Hassan, Walid M.I.

    منشور في 2014
    "…We will report on the role of the length of silicon nanowire (SNW) in determining the band gap of a structure. We find that the band gap decreases with SNW length for the same diameter and approaches the band gap for an ideal infinitely long SNW. …"
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  10. 490
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  12. 492
  13. 493

    Comprehensive thermoeconomic, exergoeconomic, and optimization analyses of direct oxy-combustion supercritical CO2 intercooled and reheated cycles under design and off-design condi... حسب Al-Ammari, Wahib A.

    منشور في 2022
    "…At off-design conditions with a power demand (PD) of 40% of the design load (50 MW), the thermal efficiency is decreased by 21.82% in DRC, 17.71% in ICC, 22.46% in PIC, and 13.60% in RHC. …"
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  14. 494

    Improved mechanical properties of recycled linear low-density polyethylene composites filled with date palm wood powder حسب AlMaadeed, Mariam A.

    منشور في 2014
    "…The Young’s modulus of the composites significantly increased as the filler content increased over the entire concentration range. A maximum value of 1989MPa was observed for the composite filled with 70wt.% filler, which was approximately 6.5times higher than that observed for neat RLLDPE. …"
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  15. 495
  16. 496
  17. 497
  18. 498

    Global incidence, prevalence, years lived with disability (YLDs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) for 371 diseases and injuries in 204 co... حسب Alize J, Ferrari

    منشور في 2024
    "…Non-communicable diseases contributed 1·73 billion (95% UI 1·54–1·94) DALYs in 2021, with a decrease in age-standardised DALY rates since 2010 of 6·4% (95% UI 3·5–9·5). …"
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    article
  19. 499
  20. 500

    Preliminary Observations On The Relative Growth And Production Of Tilapia Species Cultured In Cages At Three Stocking Densities حسب Al Zahaby, A. S. [الاحمدي الذهبي]

    منشور في 1987
    "…Results indicated that the individual growth rate of both species decreased with increased stocking densities with a best aggregate stocking rate of 200 fish/m3 for both species.The maximum production rates of 32.0 and 17.4 kg/m^six months and final average size of 178.7 and 108.7 gm/fish were recorded for T.nilotica and T. galilaea respectively.The range of food conversion ratios for T. nilotica were between 2.83 and 3.57 while for T. galilaea were 3.88 and 5.20 with efficiency decreasing with increasing stocking density. …"
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