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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
Authors:  Liu, Qing;  Liu, Xiuli
Favorite  |  View/Download:12/0  |  Submit date:2020/06/30
Age structure  Beijing  cohort-component  population projection  universal two-child policy  
The distribution of stars around the Milky Way's central black hole III. Comparison with simulations 期刊论文
ASTRONOMY & ASTROPHYSICS, 2018, 卷号: 609, 页码: 6
Authors:  Baumgardt, H.;  Amaro-Seoane, P.;  Schodel, R.
Favorite  |  View/Download:15/0  |  Submit date:2018/07/30
methods: numerical  Hertzsprung-Russell and C-M diagrams  stars: kinematics and dynamics  Galaxy: centre  Galaxy: nucleus  
Data sphering: Some properties and applications 期刊论文
ANNALS OF THE INSTITUTE OF STATISTICAL MATHEMATICS, 1998, 卷号: 50, 期号: 2, 页码: 223-240
Authors:  Zhang, J
Favorite  |  View/Download:9/0  |  Submit date:2018/07/30
sphering  dispersion matrix  invariance  asymptotic  projection pursuit