يعرض 521 - 540 نتائج من 1,392 نتيجة بحث عن '(( 50 ((nn decrease) OR (a decrease)) ) OR ((( a stem decrease ) OR ( 1 10 decrease ))))*', وقت الاستعلام: 0.19s تنقيح النتائج
  1. 521

    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 2.0–2.0 wt %) in the four composite samples prepared via stir casting. …"
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  2. 522

    Analysis of dopant diffusion in molten germanium induced by pulsed nd : yag laser حسب Mousa, Ali M. [علي مطشر موسى]

    منشور في 1995
    "…Doped sample Tann = 200- 500 C for time t mn = 45 subjected to subsequent thermal annealing (at the temperature and to plused leacr annealing (en<5rgy density in a min) pluse E=5.2 - 9.5 J/cm2) in order to establish optimal condition. A monotonic decrease in the sheet rcsostance with increasing energy density for all values of E > 10 J/cm2. …"
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  3. 523

    Collision/reaction cell ICP-MS with shielded torch and sector field ICP-MS for the simultaneous determination of selenium isotopes in biological matrices حسب Al-Saad, Khalid A.

    منشور في 2011
    "…The determinations of selenium isotopes in biological samples were performed using both inductively coupled plasma collision/reaction cell quadruple mass spectrometer (CRC-ICP-QMS) and inductively coupled plasma sector field mass spectrometers (SF-ICP-MS). To significantly decrease the argon-based interferences at m/z 74 (36Ar38Ar), 76 ( 38Ar38Ar, 40Ar36Ar), 78 ( 38Ar40Ar), and 80 (40Ar40Ar), the gas-flow rates of a helium and hydrogen mixture used in the collision cell were optimized to 1.0 mL/min H2 and 3.5 mL/min He. …"
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  4. 524
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  6. 526

    Thermochemical splitting of CO2 using solution combustion synthesized lanthanum-strontium-anganese perovskites حسب Takalkar, G.

    منشور في 2021
    "…In terms of the average and from cycle 2 to cycle 10, the La0.60Sr0.41Mn0.99O2.993 (214.8 μmol of O2/g·cycle) and La0.30Sr0.70Mn0.99O2.982 perovskites (342.1 μmol of CO/g·cycle) are observed to have the uppermost redox reactivity. …"
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  7. 527
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  10. 530

    Impact of combined oil-in-water emulsions and particulate suspensions on ceramic membrane fouling and permeability recovery حسب Abdalla M.

    منشور في 2019
    "…The addition of 1500 mg·L−1 of bentonite to a 10 vol.% emulsion resulted in a permeability decrease of 3.5–5 times over that recorded for the emulsion, and 8–36 times lower than that of the bentonite suspension. …"
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  11. 531
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  15. 535
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  17. 537

    Association between central obesity indices and iron status indicators among Qatari adults حسب Kerkadi, Abdelhamid

    منشور في 2021
    "…This study aimed to investigate the link between abdominal obesity indices and iron status among adults in Qatar. A random sample of 1000 healthy Qatari adults, aged 20–50 years, was obtained from Qatar Biobank study. …"
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  18. 538

    Caffeine use or napping to enhance repeated sprint performance after partial sleep deprivation: Why not both? حسب Romdhani, Mohamed

    منشور في 2021
    "…Purpose: To compare the effect of a 20-minute nap opportunity (N20), a moderate dose of caffeine (CAF; 5 mg·kg-1), or a moderate dose of caffeine before N20 (CAF+N) as possible countermeasures to the decreased performance and the partial sleep deprivation-induced muscle damage. …"
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  19. 539

    Binary Si–Ge Alloys as High-Capacity Anodes for Li-Ion Batteries حسب Bensalah, Nasr

    منشور في 2020
    "…The specific charge capacity retention decreases from 97.7%, 94.5%, 88.7%, and 81.2% after 20, 30, 40, and 50 cycles, respectively. …"
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  20. 540

    Application of Fe3O4 magnetite nanoparticles grafted in silica (SiO2) for oil recovery from oil in water emulsions حسب Elmobarak W.F.

    منشور في 2021
    "…An excellent %ηdem ≥ 90% was achieved Coil in the range 50–2000 mg/L. Using an MDdose as low as 10 mg/L attained a %ηdem in the range of 93%–94.3% for O/W mixtures with Coil < 2000 mg/L, which slightly decreased to ∼90% for higher concentrations. …"
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