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In part 1 ,we summary the results of authentication code and multiple authentication codes, supplement unexcellent results, give proof for our conclusions .

第一部分综述了传统认证码及多重认证码的已有结果，对不完善的结论进行补充，给出了一些新结果及简单证明。

A bstract: this system main contents is launching under the discussion of book sale management system, which main aim at a book batch to sell and retail sales sale is lord but carry on designing , in keeping with book's sell retail of management, specially be applicable to book market and book batch resources that sell company's coordination management.the system source code adopt c# language by writing format and in the vs.net 2005 integration environment bottom adjust to try to carry on, the sql server of the database adopt be 2000 backstages.it's system's turn to is a great deal of adoption abundant database technique, have already aim at a mold piece line of development, among them database operation layer technique a great deal of adoption saving process and trigger a machine of application, database interview layer technique adoption microsoft company of ado.net latest 2.0 development technique, the database mean a layer adoption unify of external appearance mode, make thus the whole system structure clear in meaning, the source code self own very good performance of readability and writability, then better convenience to customer operation and development personnel next move of development work, the type of tree control and user-defined page technique of usage make the whole system person's machine hand over with each other the function be more outstanding.

本系统主要内容是围绕图书销售管理系统而展开讨论的，主要针对图书批销以及门市销售为主而进行设计的，适合图书进销零售的管理，特别适用于书城及图书批销商协调的资源管理。系统源码采用c#语言书写格式，在vs.net 2005集成环境下调试进行，数据库采用sql server 2000后台。该系统大量采用了丰富数据库技术，有针对性模块行的开发，其中数据库操作层技术大量采用存储过程及触发器的应用，数据库访问层技术采用微软公司的ado.net最新2.0开发技术，数据库表示层采用统一的外观模式，从而使得整个系统架构明晰，源码可读可写性好，进而更好的方便了用户的操作及开发人员下一步的开发工作，树型控件和自定义分页技术的使用使得整个系统人机交互性能更为出色。

Besides, extending the concept of Label-codeword and using the K-means clustering algorithm in the field of data mining for reference, we propose the algorithm of Classified Labeled Bisecting K-means clustering, based on which a robust watermark can be embedded effectively and extracted blindly.

通过扩展码字标记码书这一概念，并借鉴数据挖掘中的K-均值聚类算法，提出了分类标记K-均值聚类的概念。利用这一概念，实现了鲁棒水印的高效嵌入和盲提取。

His biggest day of the year came in Denver, where he burned the Broncos for 220 yards and three scores, including a 76-yard romp in the first quarter.

他最大的一天，一年来在丹佛，在那里他烧的野马， 220码， 3个分数，其中包括一名76码盘，在第一季度。

In this paper, a concatenated schemes using Turbo codes and an outer RS codes could perform better.

本文研究的Turbo码与外部RS码级联产生的新的纠错码可以有效的解决这个问题。

Based on this, we employ the Turbo code as channel code, and present a CWP-MC-CDMA system concatenating with space-time coding and Turbo coding, and give corresponding system model and principle analysis.

在此基础上，我们采用Turbo码作为信道编码，提出一种级联空时编码和Turbo码的CWP-MC-CDMA系统，给出相应的系统模型和原理性分析。

multi-channel correlators are widely used in traditional pseudo-random code cw radar,which makes the ranging system more complicated.this paper proposes a method of digitalizing the return signal directly and then convoluting the signals on dsp,which can replace multi-channel correlation in analog circuit.but the computation of convolution is too huge for the dsp to fulfill.to solve this problem,this paper analyzes five fast algorithms including fft,and then chooses one according to the characters of prc-cw radars.the digital method and fast algorithm have been verified by simulated signal and real signal.

一种提高空间伪码扩谱测距精度的实用。。。摘要：传统的伪码调相连续波雷达采用多路模拟相关电路实现对回波信号的相关接收，通过多路试探搜索各距离单元的目标，电路复杂。提出的数字化方案，对回波信号直接数字化，利用高速dsp实现数字卷积，可替代多路模拟相关电路。但是直接卷积的运算量过大，dsp无法承受。本文对此进行了研究，分析了包括fft在内的五种快速算法，结合prc-cw雷达的具体情况，确定了一种适于dsp实现的快速卷积算法。仿真和实测数据证实了数字化方案及快速算法的正确性。

I've had a couple of friends seen their 60s hacked THE DAY THEY DINGED because they had no pin codes.

没有PIN码的帐号被盗的风险很大，我有两个朋友在60的那天就被盗了，因为他们没有PIN码。

Analyzing the Ergodicity of Aperiodic Markov Chain by C language;2. Recurrent, ergodicity properties for an extended birth-death minimal Q-process;3. In the end,a special experiment is implemented according to actual applications,using pseudorandom code ergodicity instead of related dispreading in se.

结合实际应用进行了专题试验，采用了一种用伪码遍历代替相关解扩进行角误差信号搜索的方法，并对伪码的搜索、捕获和跟踪的实现过程进行了详细设计，实现了扩频信号角误差信号的搜索和跟踪功能。

Totally different from the traditional algorithms for CDMA smart antennas, the new algorithm exploited the spreading codes directly within the iterative weight updating procedure instead of indirectly through the dispreading procedure.

与CDMA移动通信系统中的传统算法完全不同，新波束控制算法直接在权重迭代过程中利用了扩频码，而不是间接地通过解扩频等环节使用扩频码。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。