编码

The margin of the white matter tract become more clearly with the increasing of the number of gradient encoding directions, especially the detail of the brain stem. But the measured FA of the centrum semiovale, genu and splenium of corpous callosum, the internal capsule, thalamus and the pons with 6, 13 and 21 diffusion gradient encoding directions showed no statically difference.

随着弥散梯度编码方向的增加，FA图质量提高，对白质纤维束细节的显示也更清楚，尤其是对脑干结构的分辨，但成像时间延长；3种不同弥散梯度编码方向的DTI扫描方案所观察到的半卵圆中心、胼胝体膝部、胼胝体压部、内囊、丘脑及桥脑的FA值不存在统计学显著性差异。

Lame392和RozarLame115-LAME is undoubtedly the best MP3 encoding software with the traditional MP3 encoder than it can make better use of people's ears shadowing effect, support VBR and the joint stero, so in a certain compression ratio to achieve a better listening effect.

LAME无疑是目前最优秀的MP3编码软件，与传统的MP3编码器相比，它能够更好地利用人耳遮蔽效应，并且支持VBR以及joint stero技术，从而在一定的压缩比达到了更好的听音效果。

It also has been proven by practice that using genetic algorithm to optimize the sequence of stoping orebody is a feasible and scientific method.

实践证明，作者设计的用于优化矿体的回采顺序的遗传算法编码方案是一种比较适宜的、科学的方法，是对遗传算法编码方案的创新。

The paper sees Horton code as a primary characteristic value and generalizing condition of the river network, and selects, simplifies and generalizes river based on scale of before and after generalization,, The main contents of paper include:(1)Reviews generalization concept, arithmetic operators, methods, influence factor and frame of map generalization and design, analyze core theory of feature —oriented map generalization, discuss the main context and applicable method of river feature generalization(2) Summarizes natural form and spatial configuration characteristic of the river network, and describe the river network using digraph Paper mostly researches tree —like river, identifies the direction of river based on the angle of the main and secondary reach, and identifies the main river based on most length and predominant continuation of the flow direction along the major channel , then receives the grade of river by recursion and structuralize river network, builds hiberarchy rank system of river based on Horton coding(3)Designs the model of river network based on Horton code, and organizes the data of node, branch and river.

本论文把Horton编码作为水系网的一个主要特征值并以此作为综合条件，并根据综合前后的比例尺对水系网进行选取、化简和概括。论文的主要工作包括：(1)总结地图综合的概念、算子分解、实现方法、主要影响因素和总体设计框架，分析面向地理特征的制图综合的核心理论支撑，在此基础上讨论水系专题要素综合的主要内容和综合适用的方法。(2)总结水系网的自然形态和空间结构特征，用图论对水系网进行描述。以树状水系作为主要研究对象，依据树状水系的主支流交汇关系确定水系流向，依据水系中主流的长度最长和主流保持原有的流向趋势确定主流，按此递归得到河流的不同级别，对基于河段组织的水系网结构化，自动建立水系的Horton编码。(3)设计基于Horton码的水系网模型，对结点、河段、河流和河系的数据进行有效的组织。

Kinds of coding mode was researched and the MPEG-4 which transmit the video with the given bandwidth syllabify was selected to the system.

研究了多种视频编码方式，比较其优劣，并选择出适合本系统的MPEG-4编码标准，利用了有效的带宽传输了清晰的视频流。

It has some use in the coding algorithm's design and the multimedia syncretic coding.

对语音和图像编码算法的设计有一定的指导意义，对多媒体的融合编码也有一定意义。

Methods: total rna was isolated from hepatocellular carcinoma cell line hepg2. subsequently, a 1kb fragment of hccr 2 encoding region was amplified by rt pcr and cloned into promega teasy vector. after confirmed by dna sequencing, the full length encoding region of hccr 2 was amplified by pcr and cloned into pires2 egfp. the recombinant eukaryotic expression vector was confimed by dna sequencing.

从人肝癌细胞株hepg2提取rna，利用rt pcr方法，先克隆出一包括hccr 2编码区的长约1 kb的片段，并将其与t载体连接并转化，测序证实无误后，以hccr 2/t载体为模板，再通过pcr克隆出hccr 2的编码区序列，将其连接到pires2 egfp真核表达载体，并通过测序获得证实。

METHODS: Total RNA was isolated from hepatocellular carcinoma cell line HepG2. Subsequently, a 1kb fragment of HCCR2 encoding region was amplified by RTPCR and cloned into Promega TEasy vector. After confirmed by DNA sequencing, the fulllength encoding region of HCCR2 was amplified by PCR and cloned into pIRES2EGFP. The recombinant eukaryotic expression vector was confimed by DNA sequencing.

从人肝癌细胞株HepG2提取RNA，利用RTPCR方法，先克隆出一包括HCCR2编码区的长约1 kb的片段，并将其与T载体连接并转化，测序证实无误后，以HCCR2/T载体为模板，再通过PCR克隆出HCCR2的编码区序列，将其连接到pIRES2EGFP真核表达载体，并通过测序获得证实。

Simulation shows that at a bit error probability of 10^(-7) the suggested codes gain 3~6 dB over uncoded transmission.

仿真结果显示当误码率为10^(-7)时，其编码增益相对于未编码增加了3至6dB。

Simulation shows that LLR ordering algorithms achieve significant performance gain in uncoded systems and a faster convergence in coded systems.

仿真结果表明，该算法在未编码情况下能显著提高系统性能，在编码情况下能加快整个系统的收敛速度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。