يعرض 161 - 180 نتائج من 459 نتيجة بحث عن '(( 50 ((((ng decrease) OR (a decrease))) OR (mean decrease)) ) OR ( 2 wt decrease ))', وقت الاستعلام: 0.19s تنقيح النتائج
  1. 161
  2. 162

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

    منشور في 1994
    "…1). Organic Hg (0.6 ng L?1) contributed only 5.0% of total Hg. Mercury showed a strong tendency to be associated with suspended matter in Doha coastal waters, as it represented about 73.0% of the total. …"
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  3. 163

    Thermally conductive polyethylene/expanded graphite composites as heat transfer surface: Mechanical, thermo-physical and surface behavior حسب Sobolčiak, Patrik

    منشور في 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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  4. 164

    Mechanical Performance and Thermo-Physical Properties of Cement Mortar Incorporating Hybrid Slags حسب Baawain, Mahad

    منشور في 2020
    "…This study investigates the mechanical and thermal properties of cement mortars incorporating two types of waste slags. Ferrochrome (FeCr) slag aggregate was used as a replacement for sand at the ratios of 25, 50, 75 and 100 wt. %. …"
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  5. 165
  6. 166
  7. 167

    The Structure of the Free Volume in Poly(styrene-co-acrylonitrile) from Positron Lifetime and Pressure Volume Temperature (PVT) Experiments حسب Dlubek, Gunter

    منشور في 2004
    "…The mean hole volume, vh, varies in PS between 105 Å3 (27 °C) and 220 Å3 (190 °C), and shows a systematic decrease with increasing AN content, at Tg from 121 Å3 for PS to 102 (±2) Å3 for SAN50. …"
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  8. 168
  9. 169

    Morphology and property changes in PLA/PHBV blends as function of blend composition حسب Kanda G.S.

    منشور في 2018
    "…wt.% PHBV. For samples between 50/50 and 10/90 PLA/PHBV the tensile strength and Young?…"
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  10. 170

    Higher egg consumption associated with increased risk of diabetes in Chinese adults - China Health and Nutrition Survey. حسب Wang, Yue

    منشور في 2020
    "…Logistic regression was used to examine the association. The mean age of the study population was 50·9 (sd 15·1) years. …"
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  11. 171
  12. 172

    Improvement of ternary recycled polymer blend reinforced with date palm fibre حسب Khanam, P. Noorunnisa

    منشور في 2014
    "…The date palm fibre reinforced composites (CD00) were prepared by maintaining constant weight% of fibre of 20wt% without any fibre treatment. Maleic anhydride (MA) was used as the compatabilizer (1 and 2wt%) and the effect of compatabilizer on the blend matrix composites was studied. …"
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  13. 173

    Natural aging of shape stabilized phase change materials based on paraffin wax حسب Krupa, Igor

    منشور في 2017
    "…The addition of 15 wt% of EG to shape stabilized phase change materials (SSPCMs) containing 50 wt% of wax caused a decreasing in the leakage of wax by 50% over 210 days of natural aging. …"
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  14. 174
  15. 175

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

    منشور في 2019
    "…The strongest gel was formed with the addition of 2 wt % of 50 nm silica to the polymer base solution which enhanced the gel strength by more than 300%. …"
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  16. 176

    Microstructure, wear and corrosion characteristics of Cu matrix reinforced SiC–graphite hybrid composites حسب Jamwal A.

    منشور في 2019
    "…Copper matrix composites with SiC-graphite reinforcement (0, 2.5,5, 7.5 and 10 wt.%) were prepared by stir casting process. …"
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  17. 177
  18. 178

    Conversion of Organic Municipal Wastes into Biochars and their Effect on Fertility Parameters of Normal and Sabkha Soils of Qatar حسب Ahmedna, Mohamed

    منشور في 2016
    "…To each pot, sufficient amount of 0.25-mm sieved biochar was mixed with soil to yield carbon to soil ratios of 0, 1, and 2% (wt/wt). Box-Behnken experimental design was used instead of the full factorial to decrease the number of treatments to a manageable level (126 treatments) with three replications at the center. …"
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  19. 179

    Influence of nitrogen doping on the electrocatalytic activity of Ni-incorporated carbon nanofibers toward urea oxidation حسب Barakat, Nasser A.M.

    منشور في 2017
    "…However, the electrochemical measurements indicated that the content of the urea in the initial electrospun solution should be optimized as the results showed that the best nickel surface activation as well as the maximum observed current density can be achieved when the urea content is kept at 5 wt%. Typically, the observed current densities using 1.0 M urea (in 1 M KOH) were 3.15, 29.7, 13.75, 47.55, 14.13 and 9.85 mA/cm2 for the nanofibers obtained from electrospun solutions having 0, 1, 2, 5, 7 and 9 wt% urea, respectively. …"
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  20. 180

    Synthesis of High-Antifouling and Antibacterial Ultrafiltration Membranes Incorporating Low Concentrations of Graphene Oxide حسب Alkhouzaam, Abedalkader Ibraheem

    منشور في 2020
    "…The pure water permeability (PWP) decreased with loadings of GO from 181.7 L.m-2.h-1.bar-1 of pure PSF to 181.1 and 167.4 L.m-2.h-1.bar-1 with 0.02 and 0.1 wt.% GO respectively. …"
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