Interpretative structural model(ISM) can transform a multivariate problem into several sub-variable problems to analyze a complex industrial structure in a more efficient way by building a multi-level hierarchical str...Interpretative structural model(ISM) can transform a multivariate problem into several sub-variable problems to analyze a complex industrial structure in a more efficient way by building a multi-level hierarchical structure model. To build an ISM of a production system, the partial correlation coefficient method is proposed to obtain the adjacency matrix, which can be transformed to ISM. According to estimation of correlation coefficient, the result can give actual variable correlations and eliminate effects of intermediate variables. Furthermore, this paper proposes an effective approach using ISM to analyze the main factors and basic mechanisms that affect the energy consumption in an ethylene production system. The case study shows that the proposed energy consumption analysis method is valid and efficient in improvement of energy efficiency in ethylene production.展开更多
During the 11th Five-year Plan period, China＇s agricultural productivity improved on all levels; the contribution rate of technologies to agriculture rose steadily, the agricultural service system was gradually resto...During the 11th Five-year Plan period, China＇s agricultural productivity improved on all levels; the contribution rate of technologies to agriculture rose steadily, the agricultural service system was gradually restored and agricultural policy regimes were consummated. However, China＇s sustainable agricultural development faces severe tests such as agri-tech ＂short slabs＂ and poor collaborative operation. The 12＇h Five- year Plan period will bring both strategic opportunities and challenges. Brisker market demands and more agricultural inputs, a higher technical level and better policy regimes will drive development. On the other hand, agriculture will be confronted with more resource and environment constraints, fewer traditional comparative advantages and hidden hazards, etc. Over the next five years, China should stay its course to agricultural modernization based on its national conditions and the sustainable development concept and establish a ＂broad interpretation of grain security＂ to improve the productivity, risk- resistance capabilities and market competitiveness of its agricultural industry.展开更多
基金Supported by the National Natural Science Foundation of China(61374166,6153303)the Doctoral Fund of Ministry of Education of China(20120010110010)the Fundamental Research Funds for the Central Universities(YS1404,JD1413,ZY1502)
文摘Interpretative structural model(ISM) can transform a multivariate problem into several sub-variable problems to analyze a complex industrial structure in a more efficient way by building a multi-level hierarchical structure model. To build an ISM of a production system, the partial correlation coefficient method is proposed to obtain the adjacency matrix, which can be transformed to ISM. According to estimation of correlation coefficient, the result can give actual variable correlations and eliminate effects of intermediate variables. Furthermore, this paper proposes an effective approach using ISM to analyze the main factors and basic mechanisms that affect the energy consumption in an ethylene production system. The case study shows that the proposed energy consumption analysis method is valid and efficient in improvement of energy efficiency in ethylene production.
文摘During the 11th Five-year Plan period, China＇s agricultural productivity improved on all levels; the contribution rate of technologies to agriculture rose steadily, the agricultural service system was gradually restored and agricultural policy regimes were consummated. However, China＇s sustainable agricultural development faces severe tests such as agri-tech ＂short slabs＂ and poor collaborative operation. The 12＇h Five- year Plan period will bring both strategic opportunities and challenges. Brisker market demands and more agricultural inputs, a higher technical level and better policy regimes will drive development. On the other hand, agriculture will be confronted with more resource and environment constraints, fewer traditional comparative advantages and hidden hazards, etc. Over the next five years, China should stay its course to agricultural modernization based on its national conditions and the sustainable development concept and establish a ＂broad interpretation of grain security＂ to improve the productivity, risk- resistance capabilities and market competitiveness of its agricultural industry.
