The developments for 3-D flow numerical model are reviewed . Based on the equations of shallow water flow 2-D and 3-D hydrodynamic models are established for estuarine and coastal waters by the use of Crank-Nicholson type of time averaging θ - method and predictor-corrector scheme in this dissertation .

本文对三维水流数值模式的研究进展作了回顾，从河口、海岸三维水流运动基本方程出发，采用Crank-Nicholson 时间 平均隐格式的θ 参数 法和预报校正格式，建立了河口、海岸二、三维流场模式。

Uniform Delay Time - interval Averaging Method

均匀延迟 时间间隔 平均 法

Real Time Recording of His-Purkinje Activity on an Every-beat Basis by Using Computer Processing & Spatial Logic Averaging Method

计算机处理 实时检测每搏体表希氏束信号&空间逻辑 平均 法

In the dilute planar shear flow in turbulent regime the mean equation for ODF is derived first time by using Reynolds averaging method .

在稀相平面剪切湍流中， 首次采用雷诺 平均 的 方法，从理论上建立了包含脉动函数的平均取向分布函数的控制方程。

Computer simulation result has been shown that both the mathematical model and time averaging technique are simple and efficient nondestructive testing method of microstructure of materials .

计算机模拟结果显示了该数学模型与 时间 平均 法的有效性，本文所述方法 可望成为一种简捷有效的材料微结构无损检测 方法。

Time Domain Averaging of Precise Integration Method for Response of Random Vibration

随机振动响应 计算的精细积分 时域 平均 法

On the assumption that the vibration response are harmonic by using Kantorovich time averaging method in the time domain and Galerkin method in the special domain large amplitude vibration of the symmetrically laminated composite plates in the pre-buckled state are analyzed .

在假设系统振动响应为调和模式的条件下，分别在时间域上采用Kanotrovich 时间 平均 法，在空间域上采用Galerkin法，研究了复合材料层合板在热屈曲前的大振幅振动问题。

Time domain averaging ( TDA ) is an effective method to extract the wanted periodic components from a compound periodic signal mixed with noise .

时域 平均 处理是从混有噪声的复杂周期信号中提取感兴趣周期分量的有效 方法。

Features in different time and / or frequency domain were extracted by using combinations of signal processing techniques such as time-domain averaging discrete wavelet transform and Hilbert spectrum analysis . Correlation analysis method was used to select correlative better features .

综合运用 时域分析、离散小波分解和希尔伯特谱分析等技术对铣削过程中的三向切削力信号进行 时域及其各个子频段特征进行提取，并利用相关性分析 技术进行特征筛选。

Finally the first-passage time of controlled muti-degree of freedom strongly non-linear systems under wide-band noise excitation has also been studied by using the stochastic averaging method based on the generalized harmonic function .

最后利用广义 谐和函数的性质，研究了宽带噪声激励下的具有控制的多自由度强非线性系统的 首次穿越问题，给出了其最优控制 策略及实际应用的例子。

It links and elects superiorly from the extrapolated data of the weighted fusion result and radar data in the time gets the reference value of the fusion algorithm ( the value is the benchmark that the weighted averaging method calculates the weight ) .

对加权融合结果的外推数据和雷达数据的外推数据进行 时间上的关联、选优得到融合算法的参考值（该值是加权 平均 方法确定权值的基准）。

The time-delayed state variables are approximated with the state variables without time delay . Then the delayed feedback control of the nominal system with average parameters is obtained by applying the stochastic averaging method .

在第二部分中，首先将时滞的结构状态变量在平均的意义上用无 时滞的状态变量近似，然后应用随机 平均 法得到具平均值参数名义结构的时滞反馈控制。

In this paper a mathematical model is used to characterize this random signals and a time averaging method is used for obtaining the ultrasonic attenuation coefficient .

本文提供了一种用于识别这类随机信号的数学统计模型，并介绍了一种 时间 平均 法用来获取超声 背 散射信号的衰减系数。

Based on the precise integration method the time domain averaging of precise integration method ( TAPIM ) is developed to calculate the dynamic response of random vibration in this paper .

发展了计算结构随机振动响应的精细积分 时域 平均法，详细讨论了各种激励作用下系统动力响应的精细积分 时域 平均，并给出算例。

Assuming that the vibration is harmonic and using Kantorovich time averaging method the partial differential equations are converted into a system of nonlinear ordinary differential equations .

通过假设强迫振动的组合谐响应模式，采用Kantorovich 时间 平均 法，把非线性偏微分方程化成了非线性常微分方程组。

Then considering harmonic vibrations of the system the non linear partial differential equations are converted into ordinary differential equations through elimination of the time variable by using the Kantorovich time averaging method .

分析了系统的自由横向谐振动，借助Kantorovich 平均 法消去时间变量，将偏微分控制方程转化为非线性常微分方程 边值问题。

A Modified Time Averaging Method in Weak Signal Detection

一种改进的 时域 平均 法检测微弱信号研究