Showing 261 - 280 results of 549 for search '(( 50 ((c decrease) OR (a decrease)) ) OR ( 10 ((steer decrease) OR (mean decrease)) ))', query time: 0.24s Refine Results
  1. 261
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    Mercury pollution in doha (Qatar) coastal environment by Al-Madfa, H.

    Published 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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  3. 263
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    Inhibitory effect of sodium nitrite on corrosion of lead in 0.1 M sodium hydroxide solution by Mourad, M.Y.

    Published 1988
    “…The maximum inhibition efficiency is found to be 49.4% at 35°C and 45.9% at 50°C.…”
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  5. 265
  6. 266

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

    Published 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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  7. 267

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

    Published 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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  8. 268

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

    Published 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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  9. 269

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

    Published 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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  10. 270

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

    Published 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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  11. 271

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

    Published 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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  12. 272

    Combustion-Free Synthesis of Lithium Manganese Oxide Composites with CNTs/GNPs by Chemical Coprecipitation for Energy Storage Devices by Tariq, Hanan Abdurehman

    Published 2020
    “…Characteristic spectra of spinel structure and a peak of CNTs & GNPs obtained using X-ray powder diffraction (XRD). …”
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  13. 273

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

    Published 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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  14. 274
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    Hydropriming with moringa leaf extract mitigates salt stress in wheat seedlings by Ahmed, Talaat

    Published 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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    Investigating the effect of polymer-modified graphene oxide coating on RO membrane fouling by Ashfaq, Mohammad Y.

    Published 2022
    “…The membrane surface characterization showed a decrease in membrane surface roughness from 74.7 nm to 69.0 nm and an increase in membrane hydrophilicity as the contact angle decreased from 41.7 ± 4.50 to 22.0 ± 1.10. …”
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    Thermally conductive polyethylene/expanded graphite composites as heat transfer surface: Mechanical, thermo-physical and surface behavior by Sobolčiak, Patrik

    Published 2020
    “…This enhanced surface wettability was retained over a long time with only a 9% and 18% decrease in RF and corona plasma-treated samples' surface energy after two months. …”
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