CSpace

浏览/检索结果: 共2条,第1-2条 帮助

限定条件        
已选(0)清除 条数/页:   排序方式:
Isotopic Meshing of a Real Algebraic Space Curve 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2020, 卷号: 33, 期号: 4, 页码: 1275-1296
作者:  Jin, Kai;  Cheng, Jinsan
收藏  |  浏览/下载:138/0  |  提交时间:2020/09/23
Algebraic space curve  topology  weak generic position  
Evaluating the Impacts of Universal Two-Child Policy on Beijing's Population 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2020, 页码: 18
作者:  Liu, Qing;  Liu, Xiuli
收藏  |  浏览/下载:172/0  |  提交时间:2020/06/30
Age structure  Beijing  cohort-component  population projection  universal two-child policy