首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
NEWS     
A UNDP/UNESCO Project" Regional Training Programme on Erosionand Sedimentation for Asia" completedA UNDP/ UNESCO Project entitled "Regional Training Programme on Erosion andSedimentation for Asia" was concluded recently in October 1993. During the final colloquiumorganized for this project and attended by higher-level decision-makers from eight Asian coun-tries, there was much discussion about the needs of future regional studies on erosion andsedimentation. These needs have bee…  相似文献   

15.
16.
NEWS     
ABSTRACT

A stochastic model is proposed to describe flood-induced changes in cross sections of ephemeral streams with coarse bed-material. The model is based on the assumption that the real process can be described as a marked point process. The cumulative distribution functions of both the total change in a fixed interval of time and the maximum scour in the same period were examined. The model was run, using Monte Carlo techniques, with field data obtained from a small stream in southern Italy.  相似文献   

17.
18.
NEWS NOTES     
  相似文献   

19.
NEWS NOTES     
  相似文献   

20.
NEWS NOTES     
  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号