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研究了废旧聚酯PET以微波辐射为能量源在1,4-丁二醇、丙三醇、乙二醇和1,2-丙二醇等几种多元醇中的醇解反应.研究结果表明除1,2-丙二醇,PET在其他三种多元醇中均能得到很好的醇解转化率.根据对醇解产物和醇解过程的分析,给出了可能的醇解机理. 相似文献
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本文探讨了在大鼠背根神经节(DRG)细胞上记录离子单通道电流的方法,研究了膜片钳实验的各个环节,研究了提高封接电阻的方法。研究结果表明,单通道记录的背景噪声取决于电极与细胞的封接水平。文中还讨论了实验系统的组装,电极制备和细胞分离等技术。 相似文献
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针对某化工厂间歇化学反应器模型难以建立与控制的问题，本文提出一种隐式ＰＩＤ自校正控制算法。该算法克服了常规ＰＩＤ算法参数整定难且整定周期长的问题，可实现在线实时辨识被控对象的参数，并具备ＰＩＤ控制器参数的自校正功能，经计算机仿真研究表明该算法具有较强的鲁棒性，是一种较有应用价值的算法。 相似文献
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Some new criteria for the global asymptotic stability of the equilibrium point for the bi-directional associative memory neural networks with time varying delays are presented. The obtained results present the structure of linear matrix inequality which can be solved efficiently. The comparison with some previously reported results in the literature demonstrates that the results in this paper provide one more set of criteria for determining the stability of the bi-directional associative memory neural networks with delays. 相似文献
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Some new criteria for the global asymptotic stability of the equilibrium point for the bi-directional associative memory neural networks with time varying delays are presented. The obtained results present the structure of linear matrix inequality which can be solved efficiently. The comparison with some previously reported results in the literature demonstrates that the results in this paper provide one more set of criteria for determining the stability of the bi-directional associative memory neural networks with delays. 相似文献
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现代管理提倡“以人为中心”的软管理，在高素质人才云集的高校系科，实施人本管理更有现实意义。阐述了高校系科管理中管理者通过科学地运用软管理中的“五交”法，即交往、交谈、交流、交位、交心，使管理者和被管理者都具有精神满足感和事业成就感，从而实现系科管理中的“双赢”。 相似文献
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一种快速综合性的遗传算法 总被引：3，自引：0，他引：3
对几种改进的遗传算法进行了比较、分析、综合了这几种改进的遗传算法的优缺点后，提出了一种快速综合性的遗传算法，该算法具有收敛速度快，迭代次数少且不易陷入不成熟收敛等特点。仿真结果证实了该算法的有效性。 相似文献
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The robust H∞ control problem was considered for a class of fuzzy hyperbolic model （FHM） systems with parametric uncertainties and multiple delays. First, FHM modeling method was presented for time-delay nonlinear systems. Then, by using Lyapunov-Krasovskii approaches, delay-dependent sufficient condition for the existence of a kind of state feedback controller was proposed, which was expressed as linear matrix inequalities （LMIs）. The controller can guarantee that the resulting closed-loop system is robustly asymptotically stable with a prescribed H∞ performance level for all admissible uncertainties and time-delay. Finally, a simulation example was provided to illustrate the effectiveness of the proposed approach. 相似文献
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通过一个仿真实例的研究。阐述了实现操作人员控制策略的模糊糊神经网络方法，并讨论了模糊神经网络控制器的鲁棒性问题，仿真结果证实了该实现了方法的有效性。 相似文献
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