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As to cyclic codes over finite chain rings, we study their stucture and develop the Fourier Transform method to finite chain rings. The permutation groups of cyclic codes and their extended codes are investigated using their Mattson-Solomn polynomials.

对于有限链环上的循环码，我们研究了它们的结构，并把傅立叶变换的方法推广到有限链环，用循环码的Mattson-Solomn多项式对循环码及其扩展码的置换群进行了研究。

But it becomes difficult to repeated-root cyclic codes, because X -1 can not factor uniquely over a finite ring when n is not prime to the characteristic of the residue field of the ring.

主要内容分为以下几个方面：第一，给出了环F_2+uF_2上长度为2n的重根循环码及其对偶码的结构，进一步讨论了这类重根循环码与单根循环码二者之间的极小Lee-重量关系。

Features Internet Updateable (with purchase of CP9137)- Trilingual Display Screen - Displays freeze frame data (snapshot of the operating conditions at the time of the fault)- Review data off-vehicle - Battery Powered - Reads and erases Diagnostic Trouble Codes and turns off check engine light - Retrieves all Generic OBD II trouble codes (P0), their definitions and pending codes - Enables user to quickly and easily link to their vehicle - Large easy-to-read LCD screen provides the Diagnostic Trouble Codes and their descriptions - Extremely user friendly menu provides:- Monitor Status and I/M Readiness to determine if vehicle is ready for an emissions test.

特点互联网更新（购买cp9137 ）-三种语言显示屏幕-显示器冻结帧数据（快照的操作条件，在时间的断层）-审查数据越野车-电池供电-内容和泯灭诊断故障码和关闭检查发动机轻-返回所有的通用的o bd二故障码（ p 0），其定义和解释，有待码-使用户能够迅速，轻松地链接到自己的汽车-大型易于阅读的液晶显示屏幕提供诊断故障码及其说明-非常方便用户菜单规定：-监察地位和我/米准备，以确定如果汽车已经准备好了排放测试。

Mainly in a method of the lattice vector quantifying coding and decoding, a new basic code book is selected out and directly or indirectly comprises all points whose value is less than or equal to 3 of any dimension in a RE point set, and points on a fourth grade hypersphere in the basic code book are all odd points so that part of nearest adjoint point values can be comprised in the basic code book only via corresponding odd number processing.

一种格矢量量化编解码的实现方法及装置，其主要是在格矢量量化编码方案中，选定新的基础码本，在该基础码本中直接或间接地包含了RE 8 点集中任意维的数值小于等于3的所有点，且该基础码本中的第4级超球面上的点全部为奇数点，以使得部分的最近邻点数值仅经过相应的奇数化处理便可以包含于基础码本中。

A class of cyclic codes and their duals are also discussed, and the idempotent generators of this class of cyclic codes and their duals are described.

讨论了R上一类循环码及其对偶码，并给出了这类循环码及其对偶码的幂等生成元。

At last, this article discusses the coding method of STBC and introduces a new imbed coding method and give a simple decoding method.

最后探讨了空时分组码的编码方法，具体给出了一种简单的四发射天线传输实矩阵的编码方法并提出了一种基于嵌入码的准正交空时分组码的设计方法，并给出了一种比较简单的空时分组码的译码方法。

They are:3#,5#nylon style,3#,4#concealed style.3#,4#knop style and other styles of productions which are made by nylon core.core thread.real copper,ersatz copper small colophony tooth.big colophony tooth,diamond and concealed style.

本公司现生产各类：3#，5#尼龙码庄，3#，4#有芯码庄，3#，4#隐形码庄。3#，4#蕾丝码庄及各型号尼龙，有芯，隐形，芯丝，真铜，仿铜，树脂细齿，树脂粗齿，钻石的成品拉链。

Using kronecker product of matrix theory, basic link space code chips are recombined and a new kind of LS code is obtained.

对基本LS码片用矩阵中克罗内克积方法重新排列，得到了一类新的LS码，并从数学上证明了这类新码非周期自相关函数具有均匀的IFW，以及组内码字之间的IFW也是均匀分布的。

Present a new LVQ wavelet image coding algorithm in which entropy coding and enumeration codes of different length are utilized. For wavelet image coding, there is a problem of mismatch between lattice distribution and the input vector probability density function in traditional LVQ algorithms (such as product-code pyramid VQ and piecewise uniform LVQ).

提出一种使用熵编码和非等长枚举码的格点矢量量化算法用于小波图象的编码，该算法以格点标记码码长的变化来适应输入矢量的非均匀分布，解决了传统的乘积码塔形矢量量化和分块均匀格点矢量量化算法中格点的调整难以与输入矢量概率分布实现良好匹配的问题。

It is advanced firstly that trilingual education is based upon the multicultural education pedagogically and upon the development of bilingual education theoretically and practically. In addition, the research into trilingual code-witching becomes all the more important and significant due to the fact that trilingual education is a newly-developed research subject. The present study is of considerable significance in that it not only enriches the research of code-switching both in general setting and in classroom context, fosters conceptualization and implementation of trilingual education, but provides the implications for the EFL education for ethnic minority learners.

本章首先指出多元文化教育思想是三语教学的教育学基础，双语教育的蓬勃发展是三语教学的理论和现实基础，而三语教学研究的前沿性和创新性则为三语环境下教师课堂语码转换研究提供了广阔的生长空间和全新的研究意义；就研究意义而言，本研究在丰富和发展语码转换和课堂语码转换研究，对三语教学理论构想和实施，以及对民族外语教育的启示等方面都有重要理论和现实意义；本研究的特色与创新表现在对三语环境下教师课堂语码转换的影响模式及生成机制的构建，对三语教学的文化生态分析，对三语教师话语特征的解读，对三语环境下外语教育的课程特征、语言价值和文化追求的阐释，以及研究设计的特色与创新上。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。