查询词典 block scheme

First of all, we explore the limited channel feedback scheme applied to Orthogonal Space Time Block code MIMO systems.

本论文首先分析了基于空时分组码MIMO系统中的有限信道反馈技术。

In this paper we discuss a block coding scheme for reduction of peak-to-average power ratio of an orthogonal frequency division multiplexing system.

讨论了一种降低正交频分复用系统峰均比的分组编码方法。

In the solution of the Difichlet boundary problem ofLaplace equations, we provide an effective method for determining the spectral radiusand the best slack variable of block basic iterative methods. At the same time, wepresent the spectral radius and the best slack variable of basic iterative methods from thenine-point difference scheme.

在解决Laplace方程Dirichlet边值问题上，文章为确定块基本迭代方法的谱半径和SOR方法最优松弛因子提供了一个有效的方法，并推导了九点差分格式下的块基本迭代方法的谱半径和SOR方法最优松弛因子。

The complet block design and the come true scheme of SCADA system afer inported OPC technology was decribed in this paper. Also the function of the slave station、 communication network、 control center was been developed and carried out in this paper.

论文中介绍了引入OPC技术的SCADA系统的整体设计及实现方案，完整的开发并实现了SCADA系统的从站、通讯网络及控制中心的功能。

Compressible ; multi-scales ; super compact symmetric finite difference scheme ; parallel algorithm ; block pipelined method

用分块流水线方法设计了超紧致差分格式的并行算法，进行数值实验及并行性能分析。

From the construction aspect, the difficulties of this engineering consists highness of the water table, the inequality of distributing of the stratum, and how to ensure that the six sections open caisson go down successfully and the appearance looks beautiful under the situation of intermixing powder gushing stake, filling clay and so on. Then this paper narrates the selecting of construction scheme, the groundsill dispose and execution technics of the open caisson, the arrangement of construction order during the going down course, the taphole method and the setting and effect of the block sinking board.

从施工方面，本工程的主要难点在于地下水位较高，滑坡后土层分布不均匀，且局部混有粉喷桩基、换填粘土等障碍物情况下，如何保证6段沉井顺利下沉，且连接顺直美观，进而详细阐述了施工方案的选择，沉井群地基处理及制作工艺，下沉过程中的施工顺序安排，出渣方式方法，阻沉板的设置及作用。

During the process of the fore mentioned analyses, some tentative works as follows were done.(1)On the basis of the fundamental of spatial analytic geometry, the basic method for displaceable block searching was put forward and the relevant program was written. With this program one can easily search out all the displaceable blocks and omitting of blocks, which is very common in searching blocks manually, can be avoided.(2)The coefficient of stability of blocks with failure mode II-2(that is, sliding on a single sliding surface, but confined by near intersecting line )was deduced.(3)The multi-cavern effect of Laxiwa underground caverns was studied on the assumption that all of the caverns were full face tunneled at the same time.(4)The stability classification scheme of rock mass surrounding large scale underground caverns was established. In addition to inherit the merits of the method of engineering geological

在完成上述工作的过程中，本论文主要在以下几个方面进行了一些探索：①基于空间解析几何原理，提出了块体搜索的基本思路并编制出相应的程序，基本实现了块体搜索的自动化，既大大缩短了块体搜索时间，又能防止因人工搜索引起的遗漏；②推导出Ⅱ-2型(单滑面滑动，但受侧限面约束)块体的稳定性系数计算公式；③以数值模拟方法论证了拉西瓦地下厂房洞室群全断面一次开挖时群洞效应的具体特点；④以岩体质量、开挖效应、群洞效应和次生灾害效应为评价指标，建立了&大型地下洞室群围岩稳定性分类&方案；该方案既继承了水电行业规范&围岩工程地质分类&法的优点，又综合考虑了大型地下洞室群的工程特点。

By using ideologies of logistic planning and methods of linear programming, the mathematic model of logistics distribution is established to study rock dumping scheme optimization for hypaethral mines with three-dimensional block structure.

以矿山的三维块状模型为基础，将物流规划思想和线性规划方法相结合，建立物流运输线性规划数学模型，研究露天矿山的排岩优化问题，得出在最小运输功下开采境界内所有岩块去往各排岩场的流向和流量。

Because of the properties of the high-speed, easy-standardization, easy-implementation by the software or hardware, and so on, block cipher has become the core scheme of the data encryption, digital signature, authorization, key management in information and network safety.

分组密码以其速度快、易于标准化和和便于软硬件实现等特点，成为信息与网络安全中实现数据加密、数字签名、认证及密钥管理的核心体制。

A memory optimizing subblock-based scheme for bit plane encoder of JPEG2000 is presented to solve the mismatch problem in access pattern to code block memory existing in traditional schemes.

提出一种基于子块的存储优化算法，可用于解决现有JPEG2000位平面编码器中存在的访问编码块存储器模式失配问题。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。