يعرض 381 - 400 نتائج من 918 نتيجة بحث عن '(( 5 ((meet decrease) OR (((mean decrease) OR (a decrease)))) ) OR ( 1 wt decrease ))', وقت الاستعلام: 0.22s تنقيح النتائج
  1. 381

    Forecast of the outbreak of COVID-19 using artificial neural network: Case study Qatar, Spain, and Italy حسب Shawaqfah M.

    منشور في 2021
    "…The model sensitivity was analyzed using the root mean square error (RMSE), the mean absolute percentage error and the regression coefficient index R2, which yielded highly accurate values of the predicted correlation for the infected and dead cases of 0.99 for the dates considered. …"
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  2. 382

    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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  3. 383

    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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  4. 384
  5. 385
  6. 386
  7. 387
  8. 388

    Synthesis and properties of HA/ZnO/CNT nanocomposite حسب Ding M.

    منشور في 2018
    "…The goal of this study was to examine the tribomechanical properties of hydroxyapatite (HA)/ZnO and HA/ZnO/CNT composite ceramics (carbon nanotubes; with different ratios 0.5 wt%, 1.0 wt%, and 1.5 wt%). The composites were synthesized using the hydrothermal method in an autoclave. …"
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  9. 389

    Pd nanocrystals encapsulated in MOF-derived Ni/N-doped hollow carbon nanosheets for efficient thermal CO oxidation: unveiling the effect of porosity حسب Ipadeola, Adewale K.

    منشور في 2023
    "…This is evidenced in the great ability of Pd/Ni-MOF-HNC to utterly oxidize CO at a lower complete conversion temperature (T100) of 114.5 °C compared with Pd/Ni-MOF-NC (153.8 °C) and Pd/C (201.5 °C) under atmospheric pressure. …"
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  10. 390

    Prospects Of Amino Acids And Ionic Liquids As Natural Gas Hydrate Inhibitors For Offshore Flow Assurance حسب Qureshi, M. Fahed Aziz

    منشور في 2018
    "…The results show that the selected amino acids and ionic liquids exhibit dual functional behaviour by providing the temperature shift of around 1.5-2.3 oC and delaying the hydrate formation time from 0.5-1.5 hr. …"
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  11. 391

    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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  12. 392
  13. 393

    Experimental Investigation of Foam drilling fluid using Visualization Technique حسب Barooah, Abinash

    منشور في 2021
    "…The experiments were conducted in a 6.16 m long horizontal pipe with 2.5 in. inner diameter and 4.5 in. outer diameter and annular diameter ratio of 1.8. …"
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  14. 394

    Isothermal crystallization kinetics and morphology of double crystalline PCL/PBS blends mixed with a polycarbonate/MWCNTs masterbatch حسب Gumede T.P.

    منشور في 2019
    "…The nanocomposites contained 1.0 and 4.0 wt% MWCNTs. The blends showed a sea-island morphology typical of immiscible blends. …"
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  15. 395

    Changes In Biomass Gain, Protein Content And Hormonal Levels In Wheat Kernels In Response To Soil Drench With Sodium Salicylate حسب Abo Hamed, S. A.

    منشور في 1992
    "…Drenching of soil with sodim salycylate (800,4000 and 8000mg/l) increased grain f. wt. and d. wt. Protein content was increased in grains at days 23 and 60 with 800 mg/1 salicylate. …"
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  16. 396

    Improved flexible, controlled dielectric constant material from recycled LDPE polymer composites حسب Noorunnisa Khanam, P.

    منشور في 2016
    "…In this study, recycled low density polyethylene (RLDPE) is developed with the addition of aluminum oxide (Al2O3) to have new polymer composites. The following wt% were used of the filler (1, 4 and 6 wt%). Tensile properties, Hardness, scanning electron microscopy (SEM) thermo gravimetric analysis, differential scanning calorimetry and dielectric properties were studied for these composites. 4 wt% Al2O3/RLDPE composites showed the optimum values of 15.52, 180.8 and 59.72 MPa for the tensile strength, tensile modulus and hardness were reported. …"
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  17. 397

    Tribological studies of nanomodified mineral based multi-grade engine oil حسب Laad, M.

    منشور في 2017
    "…Tests were carried under loads of 40N, 60N and 90N at sliding speeds 0.5 m/s, 1.0 m/s and 1.5 m/s. Nanoparticle concentration in the mineral oil was taken as 1.5 wt%. …"
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  18. 398

    Modelling of the flow behaviour of wrought aluminium alloys at elevated temperatures by a new constitutive equation حسب El Mehtedi, M.

    منشور في 2014
    "…The calculation indicated that the activation energy for hot working decreased from 218 to 198kJmol−1 in the considered range of strain.…"
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  19. 399
  20. 400