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Competitiveness Evaluation of Chinese Dairy Industry Based on Accelerated Genetic Algorithm Projection Pursuit Model 期刊论文
MATHEMATICAL PROBLEMS IN ENGINEERING, 2020, 卷号: 2020, 页码: 17
作者:  Chen Hongli;  Wu Yanyan;  Liu Xiuli;  Zhang Wenju
收藏  |  浏览/下载：135/0  |  提交时间：2021/01/14
The Formation Mechanism of Green Dairy Industry Chain from the Perspective of Green Sustainable Development 期刊论文
COMPLEXITY, 2020, 卷号: 2020, 页码: 12
作者:  Chen, Hongli;  Liu, Xiuli
收藏  |  浏览/下载：156/0  |  提交时间：2020/06/30
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：161/0  |  提交时间：2020/06/30
Age structure  Beijing  cohort-component  population projection  universal two-child policy