يعرض 281 - 300 نتائج من 574 نتيجة بحث عن '(( 50 ((c decrease) OR (a decrease)) ) OR ( 10 (((meer OR peter) decrease) OR (mean decrease)) ))', وقت الاستعلام: 0.20s تنقيح النتائج
  1. 281
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  5. 285

    Mercury pollution in doha (Qatar) coastal environment حسب Al-Madfa, H.

    منشور في 1994
    "…m sediment fraction. There is a general trend for all Hg species determined in water and sediments to decrease seaward. …"
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  6. 286
  7. 287

    Inhibitory effect of sodium nitrite on corrosion of lead in 0.1 M sodium hydroxide solution حسب Mourad, M.Y.

    منشور في 1988
    "…The maximum inhibition efficiency is found to be 49.4% at 35°C and 45.9% at 50°C.…"
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  8. 288
  9. 289

    Development of an Air-Cooled Induction Manifold for Diesel Engines in Hot and Humid Climate حسب Elrentisy, Mohamed H.

    منشور في 2022
    "…For the emissions, there was a considerable reduction rate in NOx emissions with about 83% at 20 °C as well as a 50% reduction in hydrocarbon (HC) emissions compared with 45 °C. …"
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  10. 290

    Investigation of the rheological properties of nanosilica-reinforced polyacrylamide/polyethyleneimine gels for wellbore strengthening at high reservoir temperatures حسب Shamlooh M.

    منشور في 2019
    "…Gel strength was observed to increase upon increasing the size of nanosilica initially, and then, it has decreased which gave an optimum nanosilica size of 50 nm. …"
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  11. 291

    Mechanism and kinetics of electrochemical degradation of uric acid using conductive-diamond anodes حسب Dbira, Sondos

    منشور في 2016
    "…Results show that the increase of current density from 20 to 60 mA cm–2 leads to a decrease in the efficiency of the electrochemical process. …"
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  12. 292

    Synthesis of silica supported ni and cu catalyst for carbon dioxide methanation reaction حسب Aheed, Ahmed

    منشور في 2019
    "…The activity and product selectivity and stability for methanation reaction on Ni/SiO2 and Cu/SiO2 catalysts have been evaluated using a flow reactor between 50ºC - 650ºC. The as-synthesized catalysts were characterized using XRD, SEM, TEM to understand the structural properties. …"
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  13. 293

    Hydrogen Production via Ethanol Decomposition over Bimetallic Catalyst حسب Ashok, Anchu

    منشور في 2016
    "…Ethanol decomposition over bimetallic CuCo were conducted using in situ diffuse reflectance infrared fourier transform spectroscopy (DRIFT) study under N2 flow at different temperatures (50, 100, 200, 300, 400°C). Temperature-time profile of CuCo shows an increase in combustion temperature with increase in fuel ratio with maximum temperature at φ = 1 (stoichiometric ratio) and after that it decreases. …"
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  14. 294

    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
  15. 295
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    Associations of Recreational and Nonrecreational Physical Activity and Body Weight Change on Cardiovascular Disease Mortality During the Obesogenic Transition in the United States:... حسب Cheema, Birinder S.

    منشور في 2023
    "…RESULTS: Compared with the "moderate-vigorous stable" group (reference), individuals who remained inactive ("inactive stable") or reduced their participation in physical activity ("active to inactive") experienced the highest mortality, with a 50% to 176% and 22% to 222% relative increased hazard ratios for nonrecreational and recreational physical activity, respectively, across all models adjusted for covariates. …"
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  17. 297
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    Hydropriming with moringa leaf extract mitigates salt stress in wheat seedlings حسب Ahmed, Talaat

    منشور في 2021
    "…Salinity is the major constraint that decreases the yield and production of crops. Wheat has a significant value in agricultural food commodities. …"
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