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The current cost-plus natural gas pricing mechanism makes the gas price too low,resulting in a lot of consumer-side subsidies and over-consumed natural gas.This paper applies the price-gap approach and input-output analysis technology to quantitatively analyze both the direct and indirect effects on urban residents under the condition that natural gas subsidies are cancelled in China in 2007.It is shown that the gas price will increase by 33.3%-41.6%,and the residential consumption expenditure by 0.26%-0.33%.The low-income groups are mostly affected,so different subsidies should be implemented to make subsidies more efficient. 相似文献
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Based on the characteristics of an L-shaped column composed of concrete-filled square steel tubes, the axial compression experiment and nonlinear finite element analysis were carried out to study the mechanical property of the L-shaped column. The load-displacement curve for the L-shaped column, the deflection and load-strain curves for the mono columns were obtained by the axial compression experiment. The results show that the L-shaped column exhibits a flexural-torsional buckling failure mode. The numerical simulation by the finite element analysis shows that the bearing capacity and failure mode are in accordance with those of the axial compression experiment and the feasi- bility of the finite element analysis is proved. For the calculation of the bearing capacity of the L-shaped column com- posed of concrete-filled square steel tubes, an analytical method is proposed based on the theory of the elastic stability and spatial truss model. The results of the analytical method are in good agreement with those of the axial compression experiment and the finite element analysis. 相似文献
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分析中文机读目录和中文文献数据库中中文数据的字符类型，提出了实现中文数据表达格式标准化的参考方案 相似文献
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“����”�ڼ��ҹ���Уͼ����Ϣҵ�ĸ�ɾ� 总被引：2，自引：0，他引：2
系统总结“八五”期间高校图书信息业在观念更新、体制改革和管理机制优化方面取得的成就 相似文献
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针对光盘数据库检索中的扩大和缩小检索范围的一些技术性问题进行分析研究，并探索其中的规律。 相似文献