查询词典 stationary function

A better understanding of the function of spleen has been gained recently, owing to the in-depth studies on the structure, cellular function, secretion and innervation of spleen. It is generally accepted that the spleen is the important part of the regulation network between immune, nerve and endocrine system. The spleen has much more function besides blood filtering and storage, haematogenesis, and immunization, and its immune function has characteristics of \\\\\\\"two-way\\\\\\\" and \\\\\\\"phase\\\\\\\".

近年来，随着对脾脏组织结构、细胞功能、分泌功能和神经支配的深入研究，对于脾脏的功能有了更加深入的认识：脾脏是机体免疫-神经-内分泌网络调节中心的一个重要组成部分，其功能并不仅仅局限于滤血、免疫、造血和储血等，而且脾脏的免疫功能具有&双向性&和&时相性&的特点。

This module fulfills display function, additional keyboard function and GPO function, thus the main controller can focus on control function.

此模块主要是完成显示功能，附加键盘接口和GPO输出功能，可以使相应的控制器专注于控制功能的实现。

The concept of statistical property transformation is discussed according to the situation in which channel input is stationary and non-identically independent distribution with a priori known autocorrelation function.

在此基础上针对输入信号为平稳非独立同分布且有已知自相关函数的情况，引入统计特性变换，导出了变换阵的闭式解。

Then the relationship between the wavelet shrinkage and diffusion equation is studied. A t last stationary wavelet transform has been used to derive an affine invariant function.

同时从小波阈值函数与散度函数的关系入手进行研究，说明了小波分析与偏微分方程之间的联系。

The stationary conditions and autocorrelation function are derived.

讨论了混合自回归滑动平均模型的平稳性条件和自相关函数。

Stationary and nonstationary processes, including ARIMA processes. Estimation of process mean and autocovariance function. Fitting ARIMA models to data. Statistical tests for white noise. Forecasting. State space models and the Kalman filter. Robust time series analysis. Regression analysis with correlated errors. Statistical properties of long memory processes.

静态和非静态过程(包括 ARIMA 过程)，均值和时间序列分析：自协方差估计，用 ARIMA 模型拟和数据，白噪声序列的统计检验，预报，状态空间模型和 Kalman 过滤，时间序列分析的稳健性，残差具有相关性的回归分析。

VQ is easy and tend to realize, HMM can comminute the speech dynamically, it can embody not only the dynamic characteristic but also the stationary characteristic of the speech. GMM is a special HMM, it uses combination of many weighted Gaussian density function to approach the distributing density of speaker characteristic vector in characteristic space, so it is also a good way.

VQ方法是最简单又易于实现，HMM方法能将语音动态分割，既能体现语音的动态特征，又能体现语音的平稳特性，GMM用多个加权高斯密度函数的组合来逼近说话人特征矢量在特征空间的分布密度，收到了较好的结果。

Then the stationary joint probability density, the conditional reliability function, the mean first-passage time of the optimally controlled system are obtained from solving the reduced FPK equation, the backward Kolmogorov equation and the Pontryagin equation, respectively of fully averaged systems.

求解与之相应的Fokker-Planck-Kolmogorov方程得最优控制系统的联合概率密度，进而求得最优控制系统的平均幅值；求解与之相应的后向Kolmogorov方程得最优控制系统的条件可靠性函数，进而求得首次穿越时间的条件概率密度；求解与之相应的Pontryagin方程得最优控制系统的平均首次穿越时间。

Based on the equilibrium equation of an arch element the cubic nonlinear dynamic model with second order is established and the nonlinear differential dynamic system without constant term is obtained through a transfer process of T=U+b. Hence three fixed points and the homoclinic orbits are found. The critical condition of the chaotic vibration of the elastic arch is given by using the method of Melnikov function. The numerical results of the stationary and chaotic motion are given and discussed.

首先利用拱的单元平衡方程建立了拱的二阶三次非线性动力学模型；然后通过变换使方程转化为不含常数项的非线性微分动力系统，并由此得到无扰动系统的3个不动点与同宿轨道；再用Melnikov函数法给出了发生混沌的临界条件；最后给出了该系统出现定常运动和混沌运动的数值结果。

A fast algorithm, which is based on polarity correlation method for the calculation of normalized cross\|correlation function, is presented. It is suitable for stationary random signals which have Gauss distribution.

针对工程测试中较常见的具有Gauss 分布的平稳随机信号，提出了一种基于极性相关方法的计算信号间标准化互相关函数的快速算法。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。