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Synchronization Criteria for Two Generalized Complex Dynamical Networks With Time-varying Delays

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Synchronization Criteria for Two Generalized Complex Dynamic...

2009中国控制与决策会议

作者： Yuehui Zhao~1,Jinliang Wang~2 1.wuhan university of Technology,wuhan 430070,China 2.Chong Qing Normal university,chongqing400047

＜正＞In this paper,two kinds of complex dynamical networks with time-varying delays are *** first is that the elements of each node have the same time-varying delays and all nodes in network have the same time-delay *** second is that the elements of each node have different time-varying delays and all nodes in network have the same time-delay *** stability criteria are obtained by using Kronecker product,Lyapunov functional method, linear matrix inequalities（LMI） and matrix measure.

关键词： Complex dynamical networks Time-varying delays Kronecker product Lyapunov functional Linear matrix inequality matrix measure

Simulation of Three-phase Short-circuit at the Terminals of Synchronous Machine

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Simulation of Three-phase Short-circuit at the Terminals of ...

第11届国际电机与系统学术会议

作者： LIU Xuezhi~1,LIU Dichen~1,HUANG Yong~2 1.wuhan university,wuhan 430072,China 2.Central China Grid Co Ltd,wuhan 430077,China)

＜正＞Three-phase sudden short-circuit at the terminals of a synchronous machine under open circuit condition is simulated. The standard parameters are calculated by using the known parameters,and substituted into the analytical expression for computing short-circuit current The curve of the relationship between the maximal armature momentary current and the rotor angle is *** is concluded mat the armature momentary current is maximal when short-circuit occurring at the time of the terminal voltage wave is going through ***,a simulation model in SIMULINK environment is constructed, thus the oscillograms of the armature short-circuit currents in the three phases and the field short-circuit current are plot.

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聚乙炔的CH面外振动红外光谱研究

武汉大学学报（理学版） 2002年第5期48卷 601-603页

作者：任大志张卫王军武汉大学期刊社湖北武汉430072 武汉大学物理科学与技术学院湖北武汉430072

采用从头计算方法 ,计算了反式和顺式聚乙炔的氢原子在垂直于聚乙炔分子面方向振动的红外光谱计算表明 ,Gibson等用红外吸收实验所测得的谱线的确是聚乙炔的CH面外振动产生的谱线经 10 0℃长时间加热后 ,顺式聚乙炔变为反式聚炔 ,... 详细信息

采用从头计算方法 ,计算了反式和顺式聚乙炔的氢原子在垂直于聚乙炔分子面方向振动的红外光谱计算表明 ,Gibson等用红外吸收实验所测得的谱线的确是聚乙炔的CH面外振动产生的谱线经 10 0℃长时间加热后 ,顺式聚乙炔变为反式聚炔 ,但波数为 74 0cm- 1 的谱线仍保留 5

关键词： CH面外振动聚乙炔派尔斯相变红外光谱从头计算顺式结构反式结构

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略论举证责任的适用条件

现代法学 2000年第5期22卷 71-74页

作者：赵钢张永泉武汉大学法学院湖北武汉430072 苏州大学法学院苏州215003

本文认为 ,民事诉讼中举证责任的适用条件不甚明确 ,乃是困扰我国民事审判方式改革 ,影响“谁主张 ,谁举证”原则之实施的一个重要因素。文章通过对其他国家和地区相关规定的比较研究 ,结合我国的立法规定 ,探讨了待证事实真伪不明之认... 详细信息

本文认为 ,民事诉讼中举证责任的适用条件不甚明确 ,乃是困扰我国民事审判方式改革 ,影响“谁主张 ,谁举证”原则之实施的一个重要因素。文章通过对其他国家和地区相关规定的比较研究 ,结合我国的立法规定 ,探讨了待证事实真伪不明之认定标准等问题。

关键词：中国民事诉讼举证责任适用条件

外包钢与碳纤维布复合加固钢筋混凝土柱抗震性能试验研究

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土木工程学报 2005年第8期38卷 10-17页

作者：卢亦焱陈少雄赵国藩武汉大学湖北武汉430072 大连理工大学辽宁大连116024

外包钢与碳纤维布复合加固钢筋混凝土柱是一种新的加固形式。在其运用到结构抗震加固时,必须保证加固构件具有良好的延性破坏机制,为此进行了7根碳纤维布与角钢复合加固钢筋混凝土柱的低周反复试验,并编制了复合加固钢筋混凝土柱全过程... 详细信息

外包钢与碳纤维布复合加固钢筋混凝土柱是一种新的加固形式。在其运用到结构抗震加固时,必须保证加固构件具有良好的延性破坏机制,为此进行了7根碳纤维布与角钢复合加固钢筋混凝土柱的低周反复试验,并编制了复合加固钢筋混凝土柱全过程分析程序,对轴压比、碳纤维布用量、角钢用量等影响复合加固效果的因素进行了分析。试验及电算结果均表明,复合加固后钢筋混凝土柱的极限承载力和耗能性能均有大幅提高。与仅用外包角钢加固柱相比,复合加固柱的抗震性能亦得到明显改善。

关键词：外包钢碳纤维布复合加固钢筋混凝土柱抗震性能

基于主成分分析的中部地区优势产业的评价与选择

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武汉理工大学学报 2010年第14期32卷 192-196页

作者：刘玫高睿黄蕙萍武汉理工大学出版社武汉430070 武汉理工大学经济学院武汉430070

产业结构的调整和优化是解决中部地区的凹陷的关键问题。近年来,学术界提出了产业结构优化的多种路径,但也势必会造成中部地区与其它地区产业结构趋同的问题。作者认为,发展基于区域现实优势和潜在优势的优势产业,能够更加充分发挥地区... 详细信息

产业结构的调整和优化是解决中部地区的凹陷的关键问题。近年来,学术界提出了产业结构优化的多种路径,但也势必会造成中部地区与其它地区产业结构趋同的问题。作者认为,发展基于区域现实优势和潜在优势的优势产业,能够更加充分发挥地区独特的优势,提高资源利用效率,避免区域内和区域间的产业结构趋同,能更好地促进地区的产业结构调整和发展。在界定了优势产业的基础上,利用主成分分析方法对中部地区的工业行业进行分析,选出中部地区工业行业中的优势产业,并对结果进行了分析和讨论。

关键词：优势产业中部地区评价选择主成分分析

Inflation Transmission Diagnostics via a Bayesian Graph Vector Autoregressive Model with Markov Switching

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Journal of Systems Science & Complexity 2024年

作者： FU Jiali CAI Fengjing WU Jinran ZHAO Shangrui WANG You-Gan 1.College of Mathematics and Physics, Wenzhou university 2.Institute for Positive Psychology and Education, Australian Catholic university 3.School of Science, wuhan university of Technology 4.School of Mathematics and Physics, The university of Queensland College of Mathematics and Physics Wenzhou University Institute for Positive Psychology and Education Australian Catholic University School of Science Wuhan University of Technology School of Mathematics and Physics The University of Queensland

The transmission of inflation is a widespread occurrence, and managing inflationary pressures is a crucial macroeconomic challenge. Although inflation is a typical macroeconomic variable,its contemporaneous and lagged causal relationships have not been thoroughly investigated, which could result in missing important policy insights. The Bayesian graph vector autoregression(BGVAR)model can identify contemporaneous and lagged causal relationships among economic variables, but it lacks practical research on inflationary inflation. To account for the structural transformation in the inflation transmission process, the authors propose a Bayesian graph vector autoregressive model with Markov switching(MS-BGVAR), which considers both regime switching and contemporaneous causality among macroeconomic variables. The proposed study focuses on analyzing the dynamics of inflation transmission relationships among G7 countries under different regimes, as these countries represent developed nations. The authors use inflation data from 1971–2019, which shows two distinct inflation regimes within the sample period. The authors conduct simulation experiments to generate moderately dimensional simulated data for both regimes and indicators, demonstrating the theoretical reliability of the proposed model in accurately identifying graph structures. Finally, the authors apply the proposed model to identify structural breaks and causal transmission relationships in the inflation transmission process of G7 economies, demonstrating that the proposed model has significant economic significance and good explanatory power in the selected target countries.

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Airborne Radio Occultation Technology for Atmospheric Sensing:Events Distribution and Error Analysis

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Airborne Radio Occultation Technology for Atmospheric Sensin...

第三届中国卫星导航学术年会

作者： S.H YAN 1,N.C CHEN 1,X.X ZHANG 2 1.wuhan university 2.wuhan Institute of Physics and Mathematics,The Chinese Academy of Sciences

In this paper,we analyze the Low-altitude moving platform occultation technology,where the transmitter is located on the constellation of global navigation system satellites （GNSS） and the receiver is on an airborne *** carry out the occultation distribution simulation and the low atmospheric platform error *** research method is based on numerical simulation.

关键词： Low-altitude moving platform GNSS occultation error simulation

Non-thermal Plasma Reform for Hydrogen generation from Ethanol

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Non-thermal Plasma Reform for Hydrogen generation from Ethan...

The 9th Asia-Pacific Conference on Plasma Science and Technology and 21st Symposium on Plasma Science for Materials

作者： Hu Youping1 2 Li Gesheng1 Gao Xiaohong1 Yan Li2 1.wuhan university of Technology 430063 China 2.Dalian Maritime university 116026 China

＜正＞As a renewable energy,development and utilization of ethanol are becoming a new focus by researchers followed the solar energy,wind energy and terrestrial heating energy due to its potential applications to solve energy shortage *** various feasible energy,ethanol is the most promising substitutes for internal combustion engines thanks its substituting partially or fully for fossil fuels,decreasing the greenhouse effects and promoting the development of *** it has been found that hydrogen-rich gas production by plasma reforming from ethanol with the characteristics of rapid respond, small volume and easy controllable in the plasma chemistry reaction,the hydrous ethanol can be a substitute for fossil fuel to supply the combustion *** our groups,hydrogen-rich gas substituting gasoline by hydrous ethanol reforming using plasmatron in the internal combustion engines is investigated. In this paper,hydrogen is generated by non-thermal plasma reforming from ethanol and the relation for the production of hydrogen,which its function dependence on the plasma parameters is *** conversion of ethanol is related to the initial concentration of ethanol,the flowrate and the power injection. The highest hydrogen conversion efficiency of 65%is obtained at the high voltage of 20.1kV,frequency of 10.5kHz,1.5mm discharge distance and 3.0ml/min ethanol flowrate from 75%ethanol in this experiment. A reaction mechanism is also presented to explain the relationship of selectivity to different reaction parameters.

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