解块

Using the information from exploratory adit can class rock mass structure, drawing lessons from internal successful experiences in rock mass quality and weathering zone classification, dam abutment rock mass is classed by choosing quantization indices of rock mass structure, the outcome same as investigation, accord with commonly geoloical rule. Using the information from slope image can finish stability analysis of lithologic slope, get 3-D cutaway view and date, it is important datum for research engineering geoloical condition of dam abutment rock mass.

利用勘探平洞洞壁图片采集的结构面信息处理成坝肩岩体结构研究的基本量化指标及实体模型，进行拉西瓦水电站坝肩岩体结构类型划分，并借鉴国内岩体风化分带、岩体质量分级规范，以岩体结构量化指标作为风化分带和质量分级的主要指标，划分两岸坝肩岩体风化分带、岩体质量分级，划分结果与野外现场判定及地质师室内划分结果相符合；利用边坡图片解译结果完成了坝肩岩体抗滑稳定边界条件分析，及不稳定块体的量化值和三维展示图，为坝肩工程地质条件评价提供重要资料。

That the coefficient matrix of the reduced linear correction equation has arrow-shaped block structure and can be accurately decomposed into 25 sets of low-dimension linear equations by two algorithms was proposed.

该文指出其修正方程系数矩阵可具有箭形分块结构，可采用两种方法将其精确解耦为25个低维线性方程组。

BMEICS synthesizes the character of block motion estimation and that of global search, diversity, and no prone to premature in immune clonal selection. It speeds up the process of motion estimation while maintaining the average with little loss.

该方法将块匹配运动估计问题的性质与免疫克隆选择算法所具有的全局搜索特性、解的多样性和不易早熟的特点相融合，在能够获得接近全搜索方法所得到的平均峰值信噪比的前提下，使得平均搜索点数大为降低。

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 this paper, a class of matrix equation AXB = C is discussed.

中文摘要：本文针对一类一般意义下的矩阵方程，即AXB=C，应用矩阵分块的技巧，并结合特定矩阵的结构特征，采用合适的分解方法，给出了它有双对称，双反对称解的充要条件以及在条件满足时的通解表达式，并给出了各自在不同情况下的最佳逼近解。

The Reflexive Solutions Of The Matrix Equation discusses the solutions that satisfies or, and it is called reflexive solutions.

本文利用矩阵方程的系数矩阵秩的关系、矩阵的运算、矩阵的分块及矩阵的广义逆等，给出矩阵方程有解的条件、解的个数及解的结构。

The algorithm has following properties: Although the merit function has the form of least squares of a system of overdetermined equations, in the Newton equation of our algorithm, only the coefficient matrix of the system of overdetermined equations is used instead of its product as in Guass-Newton method for solving the least squares problems. That is, our Newton method is more like that for the system of nonlinear equations rather than that for LSPs. The global convergence is obtained for VLCP with vertical block P_0 + R_0 matrix; The local quadratic convergence rate is proved under the condition that the solution is BD-regular; Although there is only a Newton equation in our algorithm, the finite convergence property can be shown if matrix is vertical block P— matrix (without the hypotheses of strict complementarity).

该算法具有下列特点：所构造的价值函数虽然具有超定方程组的最小二乘问题的形式，但在基此建立的Newton算法中，其Newton方程的形式更象非线性方程组的Newton法中的Newton方程，仅利用了超定方程组的系数矩阵本身的信息，避免了一般最小二乘问题的Guass-Newton法中必须计算系数矩阵的乘积的工作量；对竖块P_0+R_0矩阵的垂直线性互补问题，算法具有全局收敛性；在解是BD-正则条件下，证明了算法的局部二次收敛性；虽然算法只含一个Newton方程，但对竖块P-矩阵垂直线性互补问题，算法具有有限步收敛性。

Polystyrene devolatilized entirely at temperatures in the vicinity of 680 K. SBR and tyre chunks showed signs of weight loss at temperatures as low as 550K (15wt% loss). This may possibly be associated with evolution of aliphatic pyrolysates of butadiene.

在温度接近680K时，聚苯乙烯完全热解，在温度550K时，丁苯橡胶和轮胎块粒出现失重迹象（15%失重率）；这可能与丁二烯的脂族热解产物的演变相关。

Methods:One hundred and six disarticulated human verebrae(C3～C7)were evaluated with computed tomography to determine vertebral bone mineral density.Pedicle screws and lateral mass screws were inserted to the left and right at random.Screws were loaded either axially strictly longitudinal to failure or in a coronal plane strictly perpendicular to the logitudinal axis,the strengths and displacements were recorded.

方法解离C3～C7骨块120个随机分为两组，测量每个椎体骨的松质骨密度，同一节段椎体随机配对置入椎弓根和侧块螺钉，在位移控制下分别测量位移控制下的平均最大拔出阻力和压力控制下的切向弹性与永久位移。

For example, the object is composed of four blocks, i.e. block A, B, C, D. Block A locates the left of block B and above block C. According to order, its code is ABDC etc. This code does not change its order after the object rotates, zoom, downsizes. The disadvantage of this method is that it will lose the target when the color is changed.A video fluid is composed of compressed data which include I, P and B(bi-prediction) frame. The data of each block of P frame is predicted by motion prediction and compensation from the data and motion vector of I frame.

MPEG视频流由I、P、B组成，为减少空间、时间的冗余，P帧的数据来自已经解压缩的I帧和P帧，B帧的数据来自已经解压缩的I帧和P帧或者P帧和P帧，这些需要解码的图像通过运动预测和补偿对P帧／B帧进行解码，P帧／B帧中每一个宏块的数据来自于最佳匹配的相应I帧和P帧或者P帧和P帧中，以及图像变化而必须的运动补偿。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。