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Furthermore,the stability behavior and accuracy characteristics of the algorithmare proven by a spectral decomposition method.

在前人工作的基础上，提出了一种新的用于解决结构动力分析问题的时间积分方法——Taylor级数方法；建立了求解线性问题和非线性项可以表示为多元多项式形式的非线性问题的Taylor级数方法的理论，并给出递归求解通式；阐述了该方法的程序实施过程，给出了计算流程图，并在非线性有限元分析平台NFAP中嵌入了Taylor级数方法的计算模块；利用谱分解的方法分析了该方法的稳定性和精度特性，以封闭的解析形式给出了描述积分法特性的周期延长率和振幅衰减率的表达式；通过对该方法的理论分析和特性研究，阐述了该方法的可行性和高效性。

At present, for the linear mixed model with two variance components, literatures only discuss the necessary and sufficient conditions for the spectral decomposition esti-mators are equivalent to ANOVAE.

一般情况下，混合模型的方差分量都是非负的，因此方差分量的估计也应该是非负的才是合理的估计。

Spectral decomposition in essence is a continuous time-frequency analysis of a seismic trace.

地震反射是典型的非平稳信号，地震谱分解实质上就是连续时频谱分析。

Spectral decomposition technology makes the theoretical resolution of the common seismic data achieved.

谱分解技术使常规地震资料达到理论分辨率。

Effects of the correlation time of noises on the spectral density also are discussed.

进一步又讨论了噪声的关联时间对原子激光谱密度的影响。

This excess noise spectral density is about one order of magnitude higher than the background 1/f noise.

这额外杂讯密度的量比较背景的1/f杂讯可大上十倍。

This means that peaks of spectral density less than 10–12 mins were omitted.

这意味着峰谱密度小于10-12分钟被忽略了。

Using Matlab correlation coefficient derived from the fixed sequence, and then observed its power spectral density.

用matlab产生自相关系数固定的序列，然后再观察其功率谱密度。

Power spectral density of local critical position are discussed.

讨论了局部危险部位应力功率谱密度获取的常用方法。

Numerical method of the power spectral density of the wavefront.

功率谱密度的数值计算方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。