查询词典 memory capacity

The topics covered include the basic concepts of information theory--entropy, mutual information, channel capacity, information rate, Shannon's noiseless coding theorem and Shannon's fundamental coding theorem; modeling of information sources--zero-memory and Markov models; modeling of information channels--BSC and BEC channels, additivity of information and cascaded channels; construction of compact source codes--Kraft inequality, compact codes, Huffman and LZW compression codes; and analysis and design of error-control channel codes--Hamming distance, binary linear codes and the parity-check matrix, Hamming codes, checksum codes, cyclic codes and the generator polynomial and CRC codes.

课程的内容包括：信息论的基本概念（熵、交互信息、信道容量、信息率、 Shannon无噪声编码定理和Shannon基本编码定理）、信源模型（无记忆模型和Markov模型）、信息信道模型（BSC 和 BEC模型、信息的可加性和级联信道），紧致信源编码设计（Kraft不等式，紧致编码，Huffman 和LZW压缩编码）以及差错控制信道码的设计与分析（海明距离，二元线性码，奇偶校验矩阵，海明码，校验和，循环码，生成多项式和CRC码）。

PSO is a population-based optimization algorithm, which mimics the social behavior of animals in a flock. It makes use of individual and group memory to update each particle position allowing global and local search optimization. The objective function considered was the total weight of the structure subjected to stresses, displacements and forces constraints. The effects of the parameters were investigated as well and such combination of tuning parameters promote a better global search behavior avoiding premature convergence while rapidly converging to the optimal solution. Results showed the effectiveness of the proposed method by comparing with ANSYS Design Optimization Tool (zero-order method). The PSO with the tuning parameters makes it an ideal method for offshore wind turbines foundations optimization tasks.(2) A reliability analysis method for pile foundation bearing axial loads based PSOThe performance function of pile foundation's axially bearing capacity sometimes is nonlinear and complex, on the basis of geometric meaning of structural reliability index, an optimum model with PSO for structural reliability analysis under arbitrary random variables was established, The PSO algorithm is very efficient to solve global optimization problemsIts use in structural reliability field presents not only the advantage of its facility of implementation, but also the possibility to obtain the design point and the failure probability with a good accuracy. In addition, PSO is a zero order algorithm, for no derivative is necessary for its implementation.

本文的研究针对桩式海上风机基础结构的特点，在国内外有关研究成果的基础上对海上风机基础结构优化设计理论和可靠度方法一些相关问题进行了较为深入的研究，具体做了以下几个方面的工作：(1)基于粒子群优化的桩式海上风机基础确定性优化设计方法桩式海上风机基础的优化设计是一个复杂的、非线性约束的优化问题，针对传统的基于梯度信息的优化方法在处理非线性问题中易陷入局部最优解的问题，本文将一种耦合惩罚函数的PSO算法引入到海上风机基础结构概念设计中，PSO算法是从群体动物聚集觅食这一活动中受到启发而发展的，该算法利用个体和群体的信息共享不断改进自身的位置从而进行局部和全局最优搜索，本文中以桩和三脚架连接段直径及壁厚为设计变量，以基础总重量作为优化的目标函数，在给定的约束条件下建立了三脚架基础优化数学模型，另外本文还研究了PSO参数变化对结果的影响，协调的参数组合可以避免陷入早熟收敛而能够快速的获得全局的最优解，通过与ANSYS优化模块的计算结果比较验证了该方法的有效性，本方法为海上风机基础的确定性设计提供了一条有效的途径。

In this paper the optimal of memory for cyclic type systems, and the optimal allocation of maintenance capacity for diplex CPU are studied.

本文研究了循环型存取方式的最优内存容量及其有关问题；还研究了双机工作维修能力的配置问题。

It enables dynamic addition of memory and processors and thus supports the capacity growth without any interruption.

它使动态此外，内存和处理器，从而支持能力的增长没有任何中断。

Dynamic random access memory has achieved 512MB the capacity and on each I/O pin the 666Mbps data transmission speed.

动态随机存取存储器已达到512MB的容量和每个I/O引脚上666Mbps的数据传输速率。

Performance: a friend had wanted to expand the memory, the results of capacity rather than smaller.

表现：朋友本来想扩充内存，结果容量反而变小了。

A flash based memory card designed to provide secure high capacity data storage.

一种基于为提供安全的大容量数据存储功能而设计的闪存。

High-speed data acquisition and high capacity real-time memory is important and necessary for acquisition and assessment of radar echo signal.

高速数据采集和大容量实时存储是采集和评估雷达回波信号的必要手段。

NTFS is the Windows NT, 2000 and XP file system, It supports almost all POSIX, HFS, HPFS features :* It can handle large-capacity memory modules (up to 246 GB).

它可以处理大容量存储单元（最大到246 GB）。

Though my English writing ability is nothing to materially improve, my capacity of word memory and reading comprehension is more improvable than before 21 days. And I found I have gotten a sort of friendly emotion of English gradually, I think it's called "English Sense".

在这21天里面虽然我的英语写作水平没有什么实质性的提高，但在记忆单词和理解文章方面都比以前有所提高，而且我逐渐地发觉开始对英语有了一种亲切的感觉，可能这就是所谓的语感吧。

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。