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In the aspect of the study of the application of HHT method, This dissertation has done three part of jobs: first, the Elcentro strong ground motion which is in common use in earhtquake engineering is analyzed by HHT method, getting its amplitude-frequency-time distribution and the comparison between the HHT marginal spectrum and Fourier spectrum is also made; second, the typical nonlinear system defined by the Duffing equation is analyzed by HHT method, getting its numerical value's amplitude-frequency-time distribution and the comparison between the HHT marginal spectrum and Fourier spectrum is also made; third, define the stationary degree of non-stationary signals making use of 3-D time-frequency spectrum and marginal spectrum, the stationary degree curve of Elcentro seismic recording is protracted according to its defining formula, the stationary degree curve of Elcentro seismic recording which change with time is protracted according to similiar definition.

在HHT方法的应用研究方面，本文做了三部分的工作：首先，利用HHT方法分析了地震工程中常用的Elcentro非平稳强震记录，得到了该记录的振幅－频率－时间分布特性，并将得到的边际谱与傅立叶谱做了比较；其次，应用HHT方法分析了典型的非线性系统－Duffing方程，得到了该方程数值解的振幅－频率－时间分布特性，并将得到的边际谱与傅立叶谱做了比较；最后，利用三维时频谱与边际谱定义了非平稳信号的平稳度，并依照其定义式绘制了Elcentro地震波记录的平稳度曲线，依照类似与依赖与频率变化的平稳度定义，初步尝试编程绘制了Elcentro地震波随时间变化的平稳度曲线。

One is stationary time series, the other is nonstationary time series. In daily time we usually observe time series which is almost nonstationary especially in the phenomena of society and economic.

在实际问题中，我们经常遇到的序列，特别是反映社会、经济现象的序列，大多数并不平稳，并且呈现出明显的趋势性或周期性，因此研究非平稳时间序列的建模具有很重要的现实意义。

Some non-stationary time series can be decomposed into several approximate stationary time series with wavelet decomposition.Decomposed time series are forecasted with auto-regression model,to obtain forecasting results of the original time series.

通过小波分解可以将某些非平稳时间序列分解成多层近似意义上的平稳时间序列，然后采用自回归模型对分解后的时间序列进行预测，从而得到原始时间序列的预测值。

The disturbance model can give the prediction for all the 95 shock events, while STOA model works for 89 events and ISPM model for only 72 events. We arrive at 25.26% percentage of all the 95 events with the relative time error less than 10%, 50.53% of all the events with the relative time error less than 20%, 65.26% of all the events with the relative time error less than 30%, 31.58% of all the events with the relative time error between 60%~80

实验表明，我们的模型在所有95个事件中，渡越时间相对误差小于10％的事件数占总事件数的25.26％；相对误差小于20％的占总事件数的50.53％；相对误差小于30％的占总事件的65.26％；相对误差在30％～60％的之间的事件数有30个，占总事件的31.58％；有3个事件相对误差在60％～80％之间，没有哪个事件相对误差大于80％。95个事件中我们的扰动传播模型能对所有事件进行分析给出预报值，STOA模型能给出89个预报值，而ISPM模型则只能给出72个。

Time of the eastpart part of United States of dispatch of sina science and technology on May 5 6:30(Beijing time on May 5 18:30) message, perfect and spatio-temporal will press at time of American the eastpart part on May 18 (Beijing time on May 18) release before open quotation of American stock market up to March 31, 2009 2009 sign up for without audit money first quarter.

新浪科技讯美国东部时间5月5日6：30(北京时间5月5日18：30)消息，完美时空将于美国东部时间按5月18日(北京时间5月18日)美国股市开盘前发布截至2009年3月31日的2009年第一季度未经审计财报。

Time of the eastpart part of United States of dispatch of sina science and technology on April 16 6:00(Beijing time on April 16 18:00) message, boat beautiful medium (Nasdaq: AMCN) announces today, this company will at time of American the eastpart part on May 7 (Beijing time on May 8) release after closing quotation of American stock market without audit 2008 money signs up for first quarter.

新浪科技讯美国东部时间4月16日6：00(北京时间4月16日18：00)消息，航美传媒(Nasdaq： AMCN)今天公布，该公司将于美国东部时间5月7日(北京时间5月8日)美国股市收盘后发布未经审计的2008年第一季度财报。

Time of the eastpart part of United States of dispatch of sina science and technology on April 29 6:00(Beijing time on April 29 18:00) message, the net in sky (Nasdaq: KONG) announces today, this company will at time of American the eastpart part on May 15 (Beijing time on May 16) release after closing quotation of American stock market 2008 money signs up for first quarter.

新浪科技讯美国东部时间4月29日6：00(北京时间4月29日18：00)消息，空中网(Nasdaq： KONG)今天公布，该公司将于美国东部时间5月15日(北京时间5月16日)美国股市收盘后发布2008年第一季度财报。

Time of the eastpart part of United States of dispatch of sina science and technology on May 7 6:00(Beijing time on May 7 18:00) message, the 9th city (Nasdaq:NCTY) announces today, this company will at time of American the eastpart part on May 19 (Beijing time on May 20) release after closing quotation of American stock market 2008 money signs up for first quarter.

新浪科技讯美国东部时间5月7日6：00(北京时间5月7日18：00)消息，第九城市(Nasdaq：NCTY)今天公布，该公司将于美国东部时间5月19日(北京时间5月20日)美国股市收盘后发布2008年第一季度财报。

Time of the eastpart part of United States of dispatch of sina science and technology on April 27 22:00(Beijing time on April 28 10:00) message, the net in sky (Nasdaq: KONG) announces today, this company will at time of American the eastpart part on May 13 (Beijing time on May 14) 2009 money are released after closing quotation of American stock market year money signs up for first quarter.

新浪科技讯美国东部时间4月27日22：00(北京时间4月28日10：00)消息，空中网(Nasdaq： KONG)今天宣布，该公司将于美国东部时间5月13日(北京时间5月14日)美国股市收盘后发布2009财年第一季度财报。

If the actual start time of the order (as given by the fourth subcomponent of the quantity/timing field) is after the first explicit time, the first administration is taken to be the first explicit time after the start time.

如果请求实际开始执行的时间在此组件设定的第一个时间之后，则默认的执行时间模式的第一时间就被设定为此组件的第一时间。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。