Open Access
表4
速度衰减
| 发射速度/(m·s-1) | 剩余速度/(m·s-1) | 衰减值/(m·s-1) | 衰减率/% |
| 10 | 8.815 82 | 1.184 18 | 11.841 80 |
| 20 | 17.683 16 | 2.316 84 | 11.584 20 |
| 30 | 27.777 39 | 2.222 61 | 7.408 72 |
| 40 | 37.470 65 | 2.529 35 | 6.323 38 |
| 50 | 47.009 63 | 2.990 37 | 5.980 74 |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.