يعرض 181 - 200 نتائج من 1,774 نتيجة بحث عن '(( 10 (((peter OR per) decrease) OR (((nn decrease) OR (a decrease)))) ) OR ( 16 1 decrease ))*', وقت الاستعلام: 0.20s تنقيح النتائج
  1. 181
  2. 182
  3. 183
  4. 184

    Environmental impacts of solar photovoltaic systems: A critical review of recent progress and future outlook حسب Tawalbeh M.

    منشور في 2021
    "…Recycling solar cell materials can also contribute up to a 42% reduction in GHG emissions. The present study offers a valuable management strategy that can be used to improve the sustainability of PV manufacturing processes, improve its economic value, and mitigate its negative impacts on the environment.…"
    احصل على النص الكامل
    احصل على النص الكامل
  5. 185
  6. 186
  7. 187
  8. 188
  9. 189
  10. 190
  11. 191
  12. 192

    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
  13. 193
  14. 194
  15. 195
  16. 196
  17. 197

    Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar حسب Chemaitelly, Hiam

    منشور في 2023
    "…The post-first omicron phase saw a drastic drop to 0.10 (95% CI 0.08 to 0.14) per 1000 person years, a 95.4% reduction. …"
    احصل على النص الكامل
    احصل على النص الكامل
  18. 198
  19. 199
  20. 200