يعرض 261 - 280 نتائج من 335 نتيجة بحث عن '(( 50 i decrease ) OR ( 50 ((((ng decrease) OR (nn decrease))) OR (mean decrease)) ))', وقت الاستعلام: 0.18s تنقيح النتائج
  1. 261

    Finite element study of functionally graded porous femoral stems incorporating body-centered cubic structure حسب Alkhatib, Sami E.

    منشور في 2019
    "…The porosity of the stems was decreased distally according to the sigmoid function (n = 0.1, n = 1 and n = 10) with 3 grading exponents. …"
    احصل على النص الكامل
    احصل على النص الكامل
  2. 262

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

    منشور في 2019
    "…In addition, the used catalysts after the reaction were characterized using similar techniques to evaluate the effect of reaction conditions on active phase and SiO2 support. The 1%Ni on SiO2 catalyst shows good activity for CO2 conversion to CH4 till 450ºC, thereafter CH4 formation decreased and CO increased and remains the only product at 650ºC. …"
    احصل على النص الكامل
  3. 263
  4. 264
  5. 265
  6. 266
  7. 267

    Global, regional, and national age-sex-specific burden of diarrhoeal diseases, their risk factors, and aetiologies, 1990–2021, for 204 countries and territories: a systematic analy... حسب Hmwe Hmwe, Kyu

    منشور في 2024
    "…FindingsIn 2021, diarrhoeal diseases caused an estimated 1·17 million (95% uncertainty interval 0·793–1·62) deaths globally, representing a 60·3% (50·6–69·0) decrease since 1990 (2·93 million [2·31–3·73] deaths). …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
    article
  8. 268
  9. 269
  10. 270

    Solar-driven hydrogen production from a water-splitting cycle based on carbon-TiO2 nano-tubes حسب Almomani F.

    منشور في 2022
    "…The S-DPOH achieved a cumulative production of hydrogen (CPOH) during 50 h of solar irradiation of 43.75 mmol at a rate RPOH?…"
    احصل على النص الكامل
    احصل على النص الكامل
  11. 271
  12. 272
  13. 273
  14. 274
  15. 275
  16. 276
  17. 277

    A novel index based on planktonic copepod reproductive traits as a tool for marine ecotoxicology studies حسب Mohamed Bakr, Hussain

    منشور في 2020
    "…At high concentrations, cadmium and silver induce an increase in EPR in the copepods Acartia tonsa and Acartia hudsonica, while exposure to mercury decreases EPR in adults by 50%. All three metals affect HS, with mercury inducing a stronger effect than cadmium and silver. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
  18. 278

    Photocatalytic and Superhydrophilic TiO2-SiO2 Coatings on Marble for Self-Cleaning Applications حسب Sutar, Rajaram S.

    منشور في 2021
    "…The suspension of TiO2-SiO2 is prepared by adding 30–50 nm in size TiO2 particles in the sol–gel processed SiO2 solution. …"
    احصل على النص الكامل
    احصل على النص الكامل
  19. 279

    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. …"
    احصل على النص الكامل
    احصل على النص الكامل
  20. 280