总结了已有的基于市场机制控制(Market Based Control,MBC)策略中的财富分配方式。财富分配方式不同直接会影响MBC算法的控制效果,根据结构反应特点,提出了两种财富分配方式:以结构剪力为优化目标的线性财富分配和以结构位移为优化目标...总结了已有的基于市场机制控制(Market Based Control,MBC)策略中的财富分配方式。财富分配方式不同直接会影响MBC算法的控制效果,根据结构反应特点,提出了两种财富分配方式:以结构剪力为优化目标的线性财富分配和以结构位移为优化目标的模态财富分配。对一安装有控制装置的20层结构进行了数值分析,比较了这两种财富分配下的MBC控制算法,并与经典LQR算法的控制效果进行了对比。研究表明,提出的两种财富分配方式能有效的控制结构响应,并验证了其合理性。展开更多
Through the pot experiment, the effects of different cropping patterns of soybean and maize seedlings on rhizosphere soil urease, catalase, polyphenol oxidase and invertase activities and microbial biomass carbon （MB...Through the pot experiment, the effects of different cropping patterns of soybean and maize seedlings on rhizosphere soil urease, catalase, polyphenol oxidase and invertase activities and microbial biomass carbon （MBC） and nitrogen （MBN） were studied. Six treatments of soybean-soybean, soybean-maize, soybean-mixed, maize-soybean, maize-maize and maize-mixed were conducted in pots. Results showed that catalase activity and invertase activity of maize-maize were the highest and significantly different from those of the other treatments except maize-soybean; soil polyphenol oxidase activity of soybean-maize was the highest, and reached significant level among the other treatments, but there was no significant difference of urease activity among treatment soils; MBC of maize-maize soil and MBN of maize-mixed soil reached the highest and significant levels compared with other treatments; MBC and C/N ratio had positive and very significant correlations with soil catalase activity and invertase activity, respectively. Therefore, different cropping patterns could affect rhizosphere soil enzyme activities and soil MBC and MBN, which influenced soil carbon and nitrogen mineralization.展开更多
文摘总结了已有的基于市场机制控制(Market Based Control,MBC)策略中的财富分配方式。财富分配方式不同直接会影响MBC算法的控制效果,根据结构反应特点,提出了两种财富分配方式:以结构剪力为优化目标的线性财富分配和以结构位移为优化目标的模态财富分配。对一安装有控制装置的20层结构进行了数值分析,比较了这两种财富分配下的MBC控制算法,并与经典LQR算法的控制效果进行了对比。研究表明,提出的两种财富分配方式能有效的控制结构响应,并验证了其合理性。
基金Supported by the Scientific Research Foundation for Doctor of Northeast Agricultural UniversityInnovative Team Fund of Northeast Agricultural University
文摘Through the pot experiment, the effects of different cropping patterns of soybean and maize seedlings on rhizosphere soil urease, catalase, polyphenol oxidase and invertase activities and microbial biomass carbon （MBC） and nitrogen （MBN） were studied. Six treatments of soybean-soybean, soybean-maize, soybean-mixed, maize-soybean, maize-maize and maize-mixed were conducted in pots. Results showed that catalase activity and invertase activity of maize-maize were the highest and significantly different from those of the other treatments except maize-soybean; soil polyphenol oxidase activity of soybean-maize was the highest, and reached significant level among the other treatments, but there was no significant difference of urease activity among treatment soils; MBC of maize-maize soil and MBN of maize-mixed soil reached the highest and significant levels compared with other treatments; MBC and C/N ratio had positive and very significant correlations with soil catalase activity and invertase activity, respectively. Therefore, different cropping patterns could affect rhizosphere soil enzyme activities and soil MBC and MBN, which influenced soil carbon and nitrogen mineralization.
