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Objective To introduce a method for condition primary culture of astrocyte of optic nerve.

目的 介绍一种快速原代培养、分离、纯化视神经星形胶质细胞的方法。

The explicit expressions of the first two moments and signal-to-noise ratio are obtained when we introduce the asymmetric dichotomous noises to the system.

当采用非对称的分段噪声时，可以得到系统响应的一、二阶矩和信噪比的精确表达式。

We introduce the general sigma point selection framework, and give two kinds of efficient methods: a reducing the computing complexity by decreasing the number of the sigma point; b scaling the sigma points to influence the effects of the higher order moments, then improve the accuracy of the UT; c Convergence analysis of the UKF, when used as an observer for nonlinear deterministic discrete-time system, is presented. Based on the UKF that captures the posterior mean and covariance accurately to the second or third order term (in terms of Taylor series expansion) for any form of nonlinearity, sufficient conditions to ensure local asymptotic convergence are established.

论文介绍了sigma点的一般选取规则，并给出了两种有效的方法：a通过减少sigma点集合的元素的数目来减少计算复杂度，b通过增加参数来逼近泰勒展开的高阶项，从而提高UT变换的精度；c论文研究了UKF算法应用于非线性确定性离散时间系统时的收敛性问题。

We introduce the asymptotic efficient curve to the model, so that the nonparametric component of the model is transformed into the parametric component, and then the geometric framework can be constructed.

本文通过引入渐近有效曲线，从而使非参数成分参数化；并对该模型建立了类似于Bates和Watts的几何结构。

Chapter one and chapter two analyse the basis theory and give a whole design plan and expatiate the basic exoterica of system inculding primary technology for application. It involves the basic control theory of satellite antenna and analyse for the whole function. Chapter three gives the hardware design which includes hardware etlectrocircuit structure, principle chart, selecting all kinds of parts of the apparatus , the sensor elements and the design of serial communication electrocircuit etc. Chapter four and chapter five introduce software design for the SCM and the personal computer, giving mainly design theory and material program which includ the design of searching for the satellite and searching for the high-point and the program development by Delphi on PC, explaining the basic principium of asynchronous serial communication for epigyny computer and hypogyny computer.

第一、二两章阐述了系统的理论基础及应用的主要技术，包括卫星天线控制基础理论和整体功能分析等等；第三章是系统硬件设计，包括硬件电路组成及原理图、各类元器件的选取及传感器原理，串行通信电路设计等：第四、五两章是单片机、PC机软件设计，给出了主要部分的设计原理及具体程序，包括监控软件设计、寻优设计、寻星设计，PC端Delphi程序设计开发等，并阐述了PC机和单片机异步串行通信的基本原理，是本课题的重点所在。

It is to introduce the formation and development of good faith at the beginning of the social development.

主要介绍诚信的涵义及形成和发展，并对当时社会所产生的影响。

The "reason" why governments tend to introduce distortions that discriminate against agriculture is that internal politics generally favor the urban population at the expense of rural people, despite the much greater size of the rural population.1 1 The political influence of urban consumers and industry enables them to exact cheap food at the expense of the vast number of poor rural people.

政府为什么倾向于介绍变形的"原因"，歧视农业在那一般的内部政治支持城市人口花费乡村人，尽管巨大得多的尺寸的这乡村人口。 11 都市消费者和勤奋的政治影响使他们能够花费巨大的糟糕的乡村的人的数量强制便宜的食品。

We firstly introduce the basic principle of ATC system and its function modules.

文中首先介绍了空管系统的运作原理，对空管系统的主要功能模块进行了描述。

There are some information about the development of soft switch and welding machine. There are also introduce some methods about the athwart invert current and how to realize it. At last we introduced the structure of DSP and how to design the module by software.

在本论文中首先介绍了软开关技术和电焊机的一些发展，然后介绍了几种典型的逆变电路和实现逆变的方法，最后讲述了DSP的硬件结构和模块以及控制软件的设计方法了软件中的模块。

In this paper, we introduce an experimental set-up, which is rebuilt on the basis of typeDMP-450 coater and applied to AVLIS(atomic vapour laser isotope separation).

1引言激光原子法分离铀同位素是目前世界上一些国家积极探索的、有前途的新课题。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！