| 变采样周期和数据包随机丢失的NCS鲁棒H∞ SymboleB控制 |
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| 引用本文： | 李艳辉,张莹.变采样周期和数据包随机丢失的NCS鲁棒H∞ SymboleB控制[J].湖南农业大学学报(自然科学版),2013,40(3):1-5. |
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| 作者姓名： | 李艳辉 张莹 |
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| 作者单位： | (1. 贵州财经大学经济研究所，贵州 贵阳550004;2. 湘潭大学商学院，湖南 湘潭411105) |
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| 摘 要： | 在消费者对商品价格与供货时间的偏好假设下，建立一个厂商关于电子商务与传统商务交易方式选择的完全信息静态博弈模型，其纳什均衡表明了电子商务与传统商务潜在的发展趋势，特别是两者可能的市场剖分关系.确切而言，若市场满足既定假设，均衡条件下的电子商务交易方式表现为较长的供货时间及低于传统商务约40%的市场交易价格，将获得三分之一的市场份额.
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| 关 键 词： | 电子商务 市场份额 博弈论 纳什均衡 |
Experimental Investigation of the Dynamic Soil-structure Interaction about Steel Frame-raft Foundation Model |
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| LI Yan-hui,ZHANG Ying.Experimental Investigation of the Dynamic Soil-structure Interaction about Steel Frame-raft Foundation Model[J].Journal of Hunan Agricultural University,2013,40(3):1-5. |
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| Authors: | LI Yan-hui ZHANG Ying |
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| Institution: | (College of Electrical and Information Engineering, Northeast Petroleum University,Daqing163318, China) |
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| Abstract: | In order to understand soil-structure dynamic interaction, tests were done about low frequency vibration exciting a large proportion of raft-foundation-steel frame in trough and on rigid foundation.Changing the stiffness of the superstructure, four contrast tests were conducted.By signal spectrum and time domain analysis, the frequency and dynamic responses of the steel frame were obtained, and it was found that the frequency and dynamic responses had something to do with the soil, which were mainly caused by the change of superstructure stiffness.The natural vibration frequency of structure reduced in trough compared with that on rigid foundation.As the superstructure stiffness increased, the reduction coefficient of frequency increased, which in the test was up to 21.63%.Also, the maximum shear force for columns, peak acceleration and displacement of each floor had obvious variation, and the reduction coefficient of acceleration could be up to 30%. |
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| Keywords: | electronic commerce market share game theory nash equilibrium |
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