يعرض 1,461 - 1,480 نتائج من 1,775 نتيجة بحث عن '(( 13 c decrease ) OR ( 10 ((meter decrease) OR (((mean decrease) OR (a decrease)))) ))*', وقت الاستعلام: 0.19s تنقيح النتائج
  1. 1461
  2. 1462
  3. 1463
  4. 1464
  5. 1465
  6. 1466
  7. 1467
  8. 1468
  9. 1469
  10. 1470
  11. 1471
  12. 1472
  13. 1473
  14. 1474
  15. 1475
  16. 1476

    Improving Concrete Durability by Using Optimized Aggregate Gradation and Reducing Cement Content حسب Chung, Hung-Wen

    منشور في 2020
    "…The main findings from this study are as follows: (1) The cementitious content of typical Florida pavement and structural concrete can be reduced by as much as 10 to 15% without loss in workability of the fresh concrete, and without decreasing the strength and durability of the hardened concrete. (2) Portlandlimestone cement (Type IL) can be used as a substitute for ordinary Portland cement (Type I/II). (3) The OAG technique can be used to efficiently reduce the cementitious content of the concrete mixes and to improve their performance."…"
    احصل على النص الكامل
    احصل على النص الكامل
  17. 1477

    Enhanced bioelectrochemical treatment of petroleum refinery wastewater with Labaneh whey as co-substrate حسب Mohanakrishna, Gunda

    منشور في 2020
    "…Among several concentrations of LW as co-substrate in the range of 5–30% (v/v) with PRW, 85:15 (PRW:LW) showed to have the highest power generation (power density (PD), 832 mW/m2), which is two times higher than the control with PRW as sole substrate (PD, 420 mW/m2). On the contrary, a maximum substrate degradation rate of 0.420 kg COD/m3-day (ξCOD, 63.10%), was registered with 80:20 feed. …"
    احصل على النص الكامل
    احصل على النص الكامل
    احصل على النص الكامل
  18. 1478
  19. 1479
  20. 1480