算法

The MD5 algorithm,a one-way hash algorithm,is improved availably by adding a hidden 'antibody' factor to the algorithm for withstanding cribber's exhaustion search.

单向散列算法选用MD5算法，并通过向算法中注入隐蔽的"抗体"因子以抵抗篡改者的穷举搜索，使MD5算法得到有效的改进。

According to this theory, hardware was made; the experiments showed different flow case brought different cross correlation function, when the distance of two sensors within 0.5～1. 5 diameter of the pipe, a sharp peak can be detected in the curve of cross correlation function, the frozen model is satisfied.

开展了互相关函数算法的研究，重点研究了极化相关算法，对该算法进行仿真研究；仿真结果与实验处理结果对比，得出只有将流动噪声信号量化为+1、-1时，极化相关算法可以得到准确的峰值位置。

The proposed algorithms for mining multi-level association rules such as Cumulate algorithm, ML_T2L1 algorithm are based on Apriori algorithm.

已有的多层关联规则挖掘算法如Cumulate 算法、ML-T2L1 算法，都是通过对Apriori 算法进行扩展得到的。

This algorithm mainly includes two stages: First a group of solutions were obtained which approximate the global optimum through cursorily adjusting the genetic algorithm.

针对遗传算法与神经网络结合方式中存在的早熟收敛、泛化能力弱等问题，提出一种交替使用遗传算法和玩Levenberg-Marquardt算法优化神经网络的混合学习算法。

This paper is that dynamically demonstrates the six algorithms implementation auxiliary teaching software of the data structure It may adapt the different demand that the reader demands the algorithm data-in and the process execution control mode.

本论文是一个动态演示数据结构中六个算法执行过程的辅助教学软件，它可适应读者对算法的输入数据和过程执行的控制方式的不同需求，在计算机的屏幕上显示算法执行过程中，可以显现数据的逻辑结构或存储结构的变化状况或递归算法执行过程中栈的变化状况。

This paper is that dynamically demonstrates the six algorithms implementation auxiliary teaching software of the data structure It may adapt the different demand that the reader demands the algorithm data-in and the process execution control mode. During the demonstration of the algorithm implementation on the computer screen, it can appear the change status of the data logical organization or the memory structure change condition or the stack change condition in the recursion algorithm implementation.

本论文是一个动态演示数据结构中六个算法执行过程的辅助教学软件，它可适应读者对算法的输入数据和过程执行的控制方式的不同需求，在计算机的屏幕上显示算法执行过程中，可以显现数据的逻辑结构或存储结构的变化状况或递归算法执行过程中栈的变化状况。

Furthermore, a new algorithm based on Fourier-transform technique combining with different calculations is proposed, which is suitable to measure steps. The new algorithm overcomes the disadvantages of old one needing datum reference and plane of reference, increasing this algorithm's utility.

基於傅里叶变换的波长移相算法，提出了结合差分运算的适合於台阶测量的新算法，克服了已有算法中需要参考基凖和参考面的缺点，提高了算法的实用性。

Taking into account different network environments, this scheme uses default route in path setup procedure.

本文针对现有方案的不足，提出了三个方面的改进：(1)针对HAWAII路径更新算法的不足，设计了一种基于Default Route的路径更新算法DRB和它的增强算法，该算法在充分考虑各种网络环境的基础上，将default route用于HAWII的路径更新过程。

Secondly, the platform of IPTV set-top box named DM6446 is introduced, and then the AVS video coding standard which is implemented as the video coding standard of IPTV is introduced. The kernel architecture, peripheral devices of DM6446 and the key technique of AVS video coding such as transformation, quantization, intra-prediction, inter-prediction, interpolation, and loop filter is introduced in detail. Thirdly, the system procedures of set-top box which are implemented on the ARM side of DM6446 are introduced in detail. This part focuses on the demultiplex of audio and video data, the design of data interface, the playback of audio and video, and the communication between ARM and DSP. Fourthly, the loop filter algorithm of AVS video coding standard is introduced in full detail, and the optimized procedures of the algorithm on the DSP side of DM6446 are introduced, and then the optimized results are presented. Fifthly, the thesis introduces and analyzes the state-of-art technique of deblocking filter, and proposes a deblocking method, and then the results of proposed method are given. Finally, summarize of this thesis and further development is given.

首先对IPTV技术、视频编解码技术以及去块滤波技术做了简要介绍；然后介绍了IPTV机顶盒的实现平台DM6446，并介绍了该处理器的外围接口和内核结构，同时介绍了作为本IPTV系统视频标准的AVS第二部分视频标准，以及该标准中变换量化、帧内预测、帧间预测、插值和环路滤波等多个模块的算法；接着，详细介绍了机顶盒系统相应程序在DM6446 ARM核上的实现，重点介绍了音视频系统码流的解复用、数据接口设计、音视频的播放以及ARM核与DSP核之间的通信；然后，详细介绍了AVS视频标准中环路滤波算法及该算法在DM6446 C64+内核上的优化，并给出优化结果；然后对去块滤波算法进行了研究并提出了一种环路滤波方案，同时给出了此方案的实验结果；最后总结了本文的工作，并提出了可以改进的方向。

In the dissertation, a new quadratic architecture 2FBA was proposed. To minimize the area, we developed a deterministic array optimization algorithm. It, like simulated annealing algorithms, has the property of climbing out of local optimums.

本论文还提出了一个新的二次布图结构：2FBA，为了减小其布图面积，我们提出了一个确定性的阵列优化算法，此算法的结果和模拟退火算法的结果类似，具有绕开局部最优的能力，然而，它的计算时间比模拟退火算法少得多。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐