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三维瞬态弹性动力场的基本解及边界积分方程 被引量:2
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作者 周锡礽 吴小杰 《应用数学学报》 CSCD 北大核心 1991年第2期213-219,共7页
三维瞬态动力场的求解,一直为世人所瞩目,本文拟采用边界积分方程——边界单元法进行求解。与其它数值方法相比较,本方法由于采用了动力场区域的基本解,因此在处理无限域或半无限域的动力场问题时可以毋须人为地去划定边界,附加相应的... 三维瞬态动力场的求解,一直为世人所瞩目,本文拟采用边界积分方程——边界单元法进行求解。与其它数值方法相比较,本方法由于采用了动力场区域的基本解,因此在处理无限域或半无限域的动力场问题时可以毋须人为地去划定边界,附加相应的边界约束条件。同时在求解过程中,采用了权函数与奇异格林函数。 展开更多
关键词 弹性动力场 基本解 边界积分方程
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Growing Wages and Changing Demand for Workers in Chinese Enterprises
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作者 都阳 《China Economist》 2014年第2期36-45,共10页
Taking advantage of company survey data,this paper examines the responsiveness of enterprises in manufacturing sectors to the recent labor market changes characterized by surging wages and shrinking unskilled workers.... Taking advantage of company survey data,this paper examines the responsiveness of enterprises in manufacturing sectors to the recent labor market changes characterized by surging wages and shrinking unskilled workers.The result shows that the labor demand elasticity with regard to output is substantial.In other words,growing manufacturing will keep creating jobs and intensify labor scarcity in China.The wage elasticity is-0.40 for unskilled workers and-0.53 for skilled workers,which indicates that Chinese companies are quite responsive to the recent labor market changes.There exists a kind of substitution effect between skilled and unskilled workers,however,the magnitude of elasticity remains small.To promote economic upgrading in China's labor market,institutional and industrial policies should encourage companies to be responsive to the warning signals from the market of production factor. 展开更多
关键词 labor demand wage elasticity substitution elasticity
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