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Foreign Trade Survey Data: Do They Help in Forecasting Exports and Imports? 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2022, 页码: 24
作者:  Bai Yun;  Wang Shouyang;  Zhang Xun
收藏  |  浏览/下载：61/0  |  提交时间：2023/02/07
ARIMAX  artificial neural network  composite index  forecasting  foreign trade  Granger causality test  survey data  
A Survey of the Representations of Rational Ruled Surfaces* 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2021, 页码: 21
作者:  Yuan Chun-Ming;  Perez-Diaz, Sonia;  Shen Li-Yong
收藏  |  浏览/下载：150/0  |  提交时间：2021/04/26
Birational transformation  characterization  implicitization  parametrization  rational ruled surface  reparametrization  
Lower Bounds of Optimal Exponentials of Thickness in Geometry Rigidity Inequality for Shells 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2021, 页码: 17
作者:  Yao Pengfei
收藏  |  浏览/下载：131/0  |  提交时间：2021/04/26
Geometry rigidity inequality  shell  nonlinear elasticity  Riemannian geometry  
Tool Orientation Optimization and Path Planning for 5-Axis Machining 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2020, 页码: 24
作者:  Yuan, Chunming;  Mi, Zhenpeng;  Jia, Xiaohong;  Lin, Fengming;  Shen, Liyong
收藏  |  浏览/下载：126/0  |  提交时间：2021/01/14
5-axis CNC machining  flat end cutter  tool path planning  tool posture optimization  
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：163/0  |  提交时间：2020/06/30
Age structure  Beijing  cohort-component  population projection  universal two-child policy  
Attention Matters: An Exploration of Relationship Between Google Search Behaviors and Crude Oil Prices 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2019, 卷号: 32, 期号: 5, 页码: 1438-1459
作者:  Li Xin;  Zhang Xun;  Wang Shouyang;  Ma Jian
收藏  |  浏览/下载：171/0  |  提交时间：2020/01/10
Asymmetric response  crude oil prices  Google search  investor attention  Markov switching autoregressive model  
A New Credit Spread to Predict Economic Activities in China 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2019, 卷号: 32, 期号: 4, 页码: 1140-1166
作者:  Wang Lei;  Nie Changhong;  Wang Shouyang
收藏  |  浏览/下载：171/0  |  提交时间：2020/01/10
Chinese bond market  corporate bond spreads  credit spreads  financial accelerator  private enterprises  state-owned enterprises  
An Inverse Power Generation Mechanism Based Fruit Fly Algorithm for Function Optimization 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2019, 卷号: 32, 期号: 2, 页码: 634-656
作者:  Liu Ao;  Deng Xudong;  Ren Liang;  Liu Ying;  Liu Bo
收藏  |  浏览/下载：171/0  |  提交时间：2020/01/10
Evolutionary algorithms  fruit fly optimization  function optimization  meta-heuristics  
Observability Analysis and Navigation Algorithm for Distributed Satellites System Using Relative Range Measurements 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2018, 卷号: 31, 期号: 5, 页码: 1206-1226
作者:  Su Qiya;  Huang Yi
收藏  |  浏览/下载：147/0  |  提交时间：2018/09/08
Distributed satellites system (DSS)  navigation  observability  quasi-consistent extended Kalman filter (QCEKF)  relative range  
Weighted L (2)-estimates of solutions for damped wave equations with variable coefficients 期刊论文
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2017, 卷号: 30, 期号: 6, 页码: 1270-1292
作者:  Yao, Pengfei;  Zhang, Zhifei
收藏  |  浏览/下载：138/0  |  提交时间：2018/07/30
Distance function of a metric  Riemannian metric  wave equation with variable coefficients  weighted L-2-estimate