يعرض 221 - 240 نتائج من 1,801 نتيجة بحث عن '(( 13 1 decrease ) OR ( 10 ((per decrease) OR (((mean decrease) OR (a decrease)))) ))*', وقت الاستعلام: 0.20s تنقيح النتائج
  1. 221
  2. 222

    Effect of using Cement Kiln Dust as a nano-material on the strength of cement mortars حسب Alnahhal, Wael

    منشور في 2017
    "…The CKD was milled up to 4 hours in a planetary ball mill. In addition to the control cement mortar mixture with 0% CKD, a total of 28 concrete mortar mixtures were prepared with four different replacement percentages of nano-CKD (5, 10, 15, and 20 %), and seven different milling times (1, 1.5, 2, 2.5, 3, 3.5, and 4 hours). …"
    احصل على النص الكامل
    احصل على النص الكامل
  3. 223
  4. 224
  5. 225
  6. 226
  7. 227
  8. 228
  9. 229
  10. 230
  11. 231

    Environment Degradation and Economic Growth in the Qatar Economy: Evidence from a Markov Switching Equilibrium Correction Model حسب Charfeddine, Lanouar

    منشور في 2016
    "…From the economic perspective, this means that initially economic growth increases environment degradation and then declines it after a threshold point of income per capita. …"
    احصل على النص الكامل
    احصل على النص الكامل
  12. 232

    Mechanical Behavior of a Novel Nanocomposite Polysulphone - Carbon Nanotubes Membrane for Water Treatment حسب Wang, Kui

    منشور في 2016
    "…The commercial CNTs had a lengths of 1 ?m to 10 ?m and outer diameters of 10 nm to 20 nm (corresponded aspect ratios ranging from 50 to 1000), with purity >95% and BET surface area of 156 m2/g. …"
    احصل على النص الكامل
    احصل على النص الكامل
  13. 233
  14. 234
  15. 235
  16. 236
  17. 237
  18. 238
  19. 239
  20. 240