يعرض 261 - 280 نتائج من 699 نتيجة بحث عن '(( 50 ((ms decrease) OR (a decrease)) ) OR ((( 20 1 decrease ) OR ( a stem decrease ))))*', وقت الاستعلام: 0.19s تنقيح النتائج
  1. 261

    Electrochemical oxidation of ammonia (NH4+/NH3) ON synthesized nickel-cobalt oxide catalyst حسب Almomani F.

    منشور في 2021
    "…The reported Pgen were 0.55, 0.85, 1.1 and 0.0.93 mW/cm2 for Ni–C, Co10/Ni–C, Co20/Ni–C and Co40/Ni–C. …"
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  2. 262

    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 objective of this work is to investigate the effect of nanosilica sizes (8, 20, 50, and 85 nm) and concentrations (0.1–2 wt %) on the stability and viscoelastic behavior of polyacrylamide (PAM) cross-linked with polyethyleneimine (PEI) at 130 °C. …"
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  3. 263

    Synthesis and characterization of stir casted Cu-ZrO2-Graphite hybrid metal matrix composites for thermal management structures حسب Mittal, Prateek

    منشور في 2022
    "…ZrO2 and Graphite reinforcements were added (0.5–0.5, 1.0–1.0, 1.5–1.5 and 2.02.0 wt %) in the four composite samples prepared via stir casting. …"
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  4. 264
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    Assessment of SnO2 nanoparticles' impact on the growth of Picochlorum maculatum algae حسب Bounnit, Touria

    منشور في 2022
    "…To determine the effect of SnO2 nanoparticles on Picochlorum maculatum - isolated from a Qatar marine environment, algal growth media are amended with different nanoparticle concentrations (1, 5, 25, 50, and 100 mg L−1) and the culture was observed for 72 h. …"
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  6. 266

    Allelopathic effects of the invasive Prosopis juliflora (sw.) Dc. On seed germination of selected Qatari native plant species حسب Bibi, Shazia

    منشور في 2016
    "…In order to achieve the goals, aqueous extract of P. juliflora was made by immersing 100 g/l of powdered parts of plant in warm distilled water (∼50°C) for 24 hours with regular mixing. Whatman filter paper was used to filter the obtained brownish solution. …"
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  7. 267

    Nanocomposite Ni-TiO2 coatings produced by pulsed electroplating حسب Wang, Y.

    منشور في 2014
    "…Nanocomposite Ni-TiO2 coatings were prepared on mild steel substrate by pulse electroplating with controlled duty cycle and frequency. A systematic study of Ni-xTiO2 coatings with different TiO2 concentrations (x50-20 g L-1) has been conducted. …"
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  8. 268
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  11. 271

    Climatology and variability of wind speeds along the southwest coast of India derived from Climate Forecast System Reanalysis winds حسب Abdulla, Cheriyeri Poyil

    منشور في 2022
    "…The study reveals significant decreasing trends in annual mean wind speeds, of the order of −2.0 to −2.5 cm·s−1·year−1, for the period 1979–2019. …"
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  12. 272

    Co2 Removal Using Imidazolium-Based Ionic Liquid -Aspen Plus Modelling Study حسب Qureshi, Tooba Ishtiaq

    منشور في 2023
    "…Additionally, a flow rate of 20,000 kg/h for the ionic liquid is optimized for the highest purity values of CO2 and CH4, and the total annualized cost for the process is 2.1 million dollars with operating expenses of 1.8 million dollars for a 20-year of plant life with a plant capacity of 4000 kg/h (0.035 Mt/year). …"
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  13. 273
  14. 274

    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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  15. 275

    Synthesizing New Anodes From Qatalum's 1st Cut Spl حسب Hani Holozadah, Abdullah

    منشور في 2014
    "…This might result in extending the life time of the carbon anodes and decrease the number of carbon dioxide kilograms that are released per a ton of produced Al metal. …"
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  16. 276

    Tribo-mechanical properties evaluation of HA/TiO2/CNT nanocomposite حسب Zalnezhad, Erfan

    منشور في 2021
    "…To investigate the biocompatibility and tribo-mechanical properties of HA/TiO2 and HA/TiO2/CNTs, four samples were prepared with different percentages of CNTs, namely, HA/TiO2 (S0), HA/TiO2/CNT (S1.0), HA/TiO2/CNT (S2.0), and HA/TiO2/CNT (S3.0). …"
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  17. 277

    Vertical zonation and functional diversity of fish assemblages revealed by ROV videos at oil platforms in The Gulf حسب Torquato, F.

    منشور في 2017
    "…Several trends were uncovered in the vertical distribution of the fish community; most species were observed between 20 and 50 m depth and fish abundance decreased towards the bottom, with the highest abundances recorded in the upper layers, i.e. down to 40 m depth. …"
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