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A MULTIYEAR LAGS INPUT-HOLDING-OUTPUT MODEL ON EDUCATION WITH EXCLUDING IDLE CAPITAL

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Journal of Systems Science & Complexity 2009年第2期22卷 159-170页

作者： Xue FU xikang chen Shanghai Normal University Shanghai 200234 China. Email: foo_xue@***. Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China.

This paper develops a multi-year lag Input-Holding-Output (I-H-O) Model on educationwith exclusion of the idle capital to address the reasonable education structure in support of a sus-tainable development strategy in China.First,the model considers the multiyear lag of human capitalbecause the lag time of human capital is even longer and more important than that of fixed capital.Second,it considers the idle capital resulting from the output decline in education,for example,stu-dent decrease in primary school.The new generalized Leonitief dynamic inverse is deduced to obtain apositive solution on education when output declines as well as expands.After compiling the 2000 I-H-Otable on education,the authors adopt modifications-by-step method to treat nonlinear coefficients,andcalculate education scale,the requirement of human capital,and education expenditure from 2005 to2020.It is found that structural imbalance of human capital is a serious problem for Chinese economicdevelopment.

关键词：投入占用产出教育结构模型可持续发展战略人力资本输入液体滞后时间

A DYNAMIC APPROACH TO CALCULATE SHADOW PRICES OF WATER RESOURCES FOR NINE MAJOR RIVERS IN CHINA

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Journal of Systems Science & Complexity 2006年第1期19卷 76-87页

作者： Jing HE xikang chen Yong SHI Research Center on Data Technology and Knowledge Economy Chinese Academy of Sciences Beijing 100080 Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China

中国从严肃的水问题正在经历。在在堤的构造的中国的九主要的河盆之中有许多差别，水库，制约，洪水分泌物工程，洪水转向工程，浇生态的建设，水管理管理，等等。为九条主要的河的水资源的阴影价格能提供建议给中国政府。这篇文章开发... 详细信息

中国从严肃的水问题正在经历。在在堤的构造的中国的九主要的河盆之中有许多差别，水库，制约，洪水分泌物工程，洪水转向工程，浇生态的建设，水管理管理，等等。为九条主要的河的水资源的阴影价格能提供建议给中国政府。这篇文章开发价格基于优化模型的 amultiperiod 输入产量接近的一个动态阴影。不同于以前的途径，新模型基于动态可计算出来的一般平衡(DCGE ) 解决水资源的边缘的 long-termprices 的问题的模型。首先， DCGE 的定义和算法被详细描述。第二，为在在用国家的水管理 input-holding-output 的中国的 1949-2050 的九条主要的河的水资源的阴影价格的结果搁置因为在 1999 的九条主要的河被列出。这篇文章的 Aconclusion 是为九条主要的河的水资源的阴影价格大部分基于缺乏的程度。水资源的售价应该经由代表阴影价格的参数的用法被修订。

关键词：可计算一般均衡动力学输入-输出分析假定价格水资源

Does the Domestic Value Added Induced by China's Exports Really Belong to China?

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China & World Economy 2012年第5期20卷 83-102页

作者： Yuwan Duan Cuihong Yang Kunfu Zhu xikang chen Academy of Mathematics and Systems Science Chinese Academy of Sciences

Since 2001, the exports of foreign-invested enterprises （FIEs） have accounted for more than 50percent of China＇s total exports. As foreign capital occupies a high proportion of the total capital of FIEs, most FIEs ＇ capital gains are foreign factor income. Although these gains are calculated as apart of China＇s GDP, they do not belong to China＇s national income. To determine the real contribution of exports to China ＂s welfare, the present paper analyses the impact of exports on China ＂s national income using a non-competitive input output model capturing processing trade. The results show that every US$1000 of China＇s exports generates US$506.8 of national income. The real contribution of exports to China ＂s welfare is much smaller than what we expected. This suggests that China should endeavor to improve the gains from international markets orfind another engine to maintain its economic growth.

关键词： domestic factor income domestic value added exports foreign factor income

2024年中国经济增长速度的预测分析与政策建议

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中国科学院院刊 2024年第1期39卷 95-104页

作者：陈锡康杨翠红祝坤福王会娟李鑫茹赵宇中国科学院预测科学研究中心北京100190 中国科学院数学与系统科学研究院北京100190 中国人民大学经济学院北京100872 中央财经大学统计与数学学院北京100081 首都经济贸易大学经济学院北京100070 中国科学院大学经济与管理学院北京100190

2023年在疫情以后国民经济保持恢复态势,中国经济向着积极的方向复苏。但是经济恢复存在一定波动,预测2024年中国经济将平稳较快增长。文章综合运用了投入产出技术、景气分析、专家分析、统计和计量经济模型来预测国内生产总值(GDP)。... 详细信息

2023年在疫情以后国民经济保持恢复态势,中国经济向着积极的方向复苏。但是经济恢复存在一定波动,预测2024年中国经济将平稳较快增长。文章综合运用了投入产出技术、景气分析、专家分析、统计和计量经济模型来预测国内生产总值(GDP)。通过回顾2023年中国的经济运行状况,并考虑到当下国内外的形势,预测显示2024年中国经济有望保持平稳运行,增速达到5.3%左右;基于对当前经济状况的分析,文章提出如下建议:加强宏观政策跨周期和逆周期调节力度;提升产业链现代化水平,提高产业链韧性和竞争力;稳定支持中小企业的发展。

关键词：经济预测经济形势分析国内生产总值政策建议

基于吊车用放线滑车跨越装置的输电线路跨越施工方法

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安徽电气工程职业技术学院学报 2024年第1期29卷 36-41页

作者：潘康崔青松陈夕康安徽送变电工程有限公司安徽合肥231202

输电线路架设过程中,跨越电力线、道路等情况越来越多。由于高电压等级电力线跨越高度高,造成跨越施工难度大,而传统方式采用搭设跨越架形式,跨越架体高大,施工成本高,安全风险大。因此,对跨越电力线、道路等输电线路架设施工方法开展... 详细信息

输电线路架设过程中,跨越电力线、道路等情况越来越多。由于高电压等级电力线跨越高度高,造成跨越施工难度大,而传统方式采用搭设跨越架形式,跨越架体高大,施工成本高,安全风险大。因此,对跨越电力线、道路等输电线路架设施工方法开展研究。通过与传统跨越施工方式对比,基于吊车用放线滑车跨越装置的输电线路跨越施工方法,降低了施工成本和施工风险。

关键词：吊车放线滑车跨越

地震作用下露天矿节理岩质边坡稳定性数值模拟研究

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黄金 2024年第7期45卷 6-10页

作者：谢仁青刘明淳姜海涛魏锡康陈智斌福建岩土工程勘察研究院有限公司

为研究地震作用下节理边坡的稳定性,以蒙特卡洛方法建立了随机节理裂隙网络模型,运用离散元程序3DEC开展了地震作用下某露天矿边坡稳定性的数值仿真研究。结果表明:地震作用下,坡底部位振动强度、位移等明显强于坡顶部位,坡体节理裂隙... 详细信息

为研究地震作用下节理边坡的稳定性,以蒙特卡洛方法建立了随机节理裂隙网络模型,运用离散元程序3DEC开展了地震作用下某露天矿边坡稳定性的数值仿真研究。结果表明:地震作用下,坡底部位振动强度、位移等明显强于坡顶部位,坡体节理裂隙对地震波的传播能量具有显著的削弱作用,坡底主要表现为剪切破坏模式,日常生产过程中需加强坡底结构抗震能力。

关键词：露天开采边坡节理裂隙随机节理裂隙网络地震作用数值仿真稳定性

Input-occupancy-output models of the non-competitive type and their application - an examination of the China-US trade surplus

维普期刊数据库博看期刊评论

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Social Sciences in China 2010年第1期31卷 35-54页

作者： Lawrence J. Lau xikang chen Cuihong Yang Leonard K. cheng K. C. Fung Yun-Wing Sung Kunfu Zhu Jiansuo Pei Zhipeng Tang Stanford University Chinese University of Hong Kong Academy of Mathematics and Systems Science Chinese Academy of Sciences Hong Kong University of Science and Technology University of California at Santa Cruz Chinese University of Hong Kong affiliated to Academy of Mathematics and Systems Science CAS Graduate University of CAS

本文构建了一种能够反映中国加工贸易特点的非竞争（进口）型投入占用产出模型，提出了一个国家全部出口与分部门、分大类商品的单位出口对国内增加值和就业的拉动效应的计算方法，从数学上证明了出口总值等于出口商品所包含的完全国内... 详细信息

本文构建了一种能够反映中国加工贸易特点的非竞争（进口）型投入占用产出模型，提出了一个国家全部出口与分部门、分大类商品的单位出口对国内增加值和就业的拉动效应的计算方法，从数学上证明了出口总值等于出口商品所包含的完全国内增加值与完全进口额之和，并据此编制了2002年中美两国的非竞争（进口）型投入占用产出表，测算和分析了中美两国出口对各自国内增加值和就业的影响。

关键词：投入占用产出竞争性中国模型贸易应用考试出口

A Factor Decomposing Model of Water Use Efficiency at Sector Level and Its Application in Beijing

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Journal of Systems Science & Complexity 2016年第2期29卷 405-427页

作者： LIU Xiuli HEWINGS J D Geoffrey chen xikang WANG Shouyang Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China. Regional Economics Applications Laboratory University of Illinois607 S.Mathews#318UrbanaIL61801USA

The paper explores the contribution of different factors affecting water use efficiency(WUE) of each sector and explores ways to improve WUE.A new Multi-Sector and Multi-Factors Logarithmic Mean Divisia Index(MLMDI) decomposition method was developed that enabled the identification of WUE by sector into 11 factors in terms of their order of importance.An application to Beijing at the 19 sector level was made for the period between 2002–2007.The water conservation effects of six measures proposed during the 12th-Five-Year-Plan of Beijing were assessed.It was found that,to decrease the transferred out and export of agriculture products and increasing water prices would be the top two most effective measures to promote water conservation.While the adjustment of direct water use structure would contribute in less significant way,the adjustment of industrial structure would have a negative effect.

关键词：水分利用效率资源利用效率北京分解模型应用因子分解方法对数平均

Cytotoxic polyacetylenes isolated from the roots and rhizomes of Notopterygium incisum

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Chinese Chemical Letters 2019年第2期30卷 428-430页

作者： xikang Zheng Xiaoqing Zheng chen Zhang Qingying Zhang Yong Jiang Pengfei Tu State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University

Phytochemical investigation on the roots and rhizomes of Notopterygium incisum led to the isolation of a new polyacetylene, notopolyenol A (1), along with thirteen known analogues (2-14). Their structures were elucidated by extensive analyses of NMR and HRMS data, and the absolute configuration of 1 was unambiguously determined as 3 R by comparison of its retention time and ECD curve with those of synthetic enantiomers (-)-1 and (+)-1, whose absolute configurations were established by using the modified Mosher's method. Subsequent activity screening revealed that (3 S)-1 exhibited the most significant cytotoxicity against MCF-7, H1299, and HepG2 cancer cells with IC_(50) values of 1.3 μmol/L,0.6μmol/L and 1.4μmol/L, respectively.

关键词： Notopterygium incisum Polyacetylenes Total synthesis Cytotoxicity