• In this paper we prove that the exponential series of LCM function is less than 4.

    本论文研究目的是探讨大连市成年人体重指数、腰围、腰臀比、台阶指数与血压的关系。

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  • The relationship between the order M of the exponential series function and astringency was also analyzed.

    分析了幂数级函数阶数M与其收敛性的关系。

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  • Prominent among the various techniques that can help to extrapolate past date into future trends are the following:time series, least squares method, exponential smoothing, regression and correlation.

    由历史数据推测未来趋势的众多方法中较突出的有:时间序列法、最小平方法、指数平滑法、回归分析和相关分析。

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  • The exponential matrix function exhibition series was applied to solve the static problem; adopt the state space iterative method was applied to solve dynamic problem.

    对静力问题,将指数矩阵函数展成级数来求解;对动力问题,采用状态空间迭代法来求解。

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  • In this article, author derives oil film perturbed pressure equation through expanding pressure using a Taylor Series. With exponential film assumption, analytical expression of OFSD is also derived.

    本文通过对油膜压力进行二阶泰勒级数展开得到油膜摄动压力方程组,采用指数膜假定求解油膜摄动压力方程组,得到推力轴承油膜刚度和阻尼的解析表达式。

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  • The statistical characteristics of exponential distribution of urban short-duration rainstorm are studied when the rainstorm series are chosen by annual multi-sampling method.

    讨论了采用年多个样法选样时,城市短历时暴雨的指数分布的统计特征。

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  • Conclusion: The exponential smoothing method could be employed to forecast a time series of one dimension for cucumber downy disease.

    结论:可以利用指数平滑法对霜霉病一维时间序列进行预测。

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  • Then, we make prediction with moving exponential average model after the analysis of the travel time series. Finally, we present reasonable justification.

    通过分析行程时间时间序列的时变特性,利用指数平滑模型进行预测,最后提出合理的修正方法。

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  • Exponential curve was employed in studying time series of typhoid and paratyphoid (1997-2003) and incidence rate of year 2004 was predicted based on the prediction model.

    对伤寒、副伤寒发病率时间序列(1997 ~ 2003)采用指数曲线拟合,并对2004年伤寒、副伤寒疫情作出预测。

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  • Quartic exponential smoothing method can follow the nonlinear trend of time series better and can also forecast better.

    布朗单一参数四次指数平滑能更好地跟踪时序的非线性变化趋势,达到更好的短期预测效果。

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  • There are serious disadvantages with calculating the value of exponential and logarithmic functions by directly using the Taylor series.

    直接用泰劳级数在浮点数运算下计算指数、对数函数的值有严重缺点。

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  • [Methods] Exponential curve was employed in studying time series of typhoid and paratyphoid (1997-2003) and incidence rate of year 2004 was predicted based on the prediction model.

    [方法]对伤寒、副伤寒发病率时间序列(1997 ~ 2003)采用指数曲线拟合,并对2004年伤寒、副伤寒疫情作出预测。

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  • [Methods] Exponential curve was employed in studying time series of typhoid and paratyphoid (1997-2003) and incidence rate of year 2004 was predicted based on the prediction model.

    [方法]对伤寒、副伤寒发病率时间序列(1997 ~ 2003)采用指数曲线拟合,并对2004年伤寒、副伤寒疫情作出预测。

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