特征参数

It identifies those communities by way of the multidimensional eigenvectors of network's connection matrices, and then the effects of key parameters on the division results are analyzed through simulation so as to determine the parametrical values which make sure that the results of division are optimum.

利用网络连接矩阵的多维特征向量划分网络社团，通过仿真实验分析关键参数对划分效果的影响，从而确定使得划分结果最优的参量值，并综合多维特征量阈值和社团数目两方面的因素决定被划分的社团数目。

The expression of the pulse wave characteristics is based on the physiological nature of the arterial wall,the arterial blood and the perivascular tissue from the physical and mathematical points.

从动脉血管系统的血管壁、血液以及动脉血管周围组织的生理物性出发，建立了脉搏波波形特征的数学表达式，从物理学以及数学的角度在理论上分析了脉搏波波形的特征随生理参数的变化情况。

According to the definition and the distribution of VSR's voltage space vector, the introduction of a rule-based SVPWM current control strategy, with non-fixed switching frequency and dual hysteresis loops, that obviously improves the performance of current control. Based on two kinds of control strategies of VSR under unbalanced grid condition, the introduction of a new VSR control strategy featuring undamped-oscillation that simplifies the controller structure and effectively improves VSR's performance under unbalanced grid condition. A systematic description of the state switching in trilogic PWM signal generation of threephase CSR by using the conversion between bilogic and trilogic switching functions.

作者在如下工作的基础上对PWM整流器的一些关键问题提出了自己的研究思路、观点和方法：根据PWM整流器网侧矢量关系，直观地描述了其四象限运行的基本原理及特征；定量分析了VSR、CSR的PWM换相过程及波形特征；引入等效变压器模型并详细分析了VSR、CSR基于d—q模型的动、静态特性；提出了满足四象限有功、无功运行指标时的VSR交流侧电感设计方法；并提出了依据控制系统跟随性和抗扰性性能指标设计VSR、CSR直流侧储能元件的参数计算方法；在研究了VSR电流控制策略基础上，提出了影响VSR电流控制的几个要素，并进行了定量分析；根据VSR空间电压矢量的定义及分布，提出了基于规则控制的不定频滞环空间矢量PWM电流控制策略，并由此提出了具有双滞环特性的不定频滞环优化SVPWM电流控制策略，有效地改进了滞环PWM电流控制性能。

In this paper, the preparations, analytical methods, physical characteristics of ferrates and the application of ferrates in the fields of synthesis of organic compounds, treatment of waste water and the usage as cathode material in alkaline batteries are summarized. The electrochemical preparation of sodium ferrate is described and the relationships between the main parameters in the process are deeply investigated. One method of in-situ electrosynthesizing potassium ferrate of high purity with both high efficiency and low energy consumption is invented. The cyclic voltammogram and feature characterization of iron anode in alkaline solutions is studied. One preparation method of ex-situ electrosynthesizing tripotassium sodium ferrate of high purity is created.

本文概述了高铁化合物的制备方法、分析方法、物理化学性质及其在氧化合成有机物、水处理和用作碱性电池正极材料等领域的应用；深入系统地研究了高铁酸钠的电化学制备及其影响参数之间的关系；研发了一种高效率低能耗直接电合成高纯度高铁酸钾的工艺方法；探讨了铁电极在浓的苛性碱溶液中的循环伏安特征及其极化特征；研发了一种电化学制备高铁酸三钾钠的工艺方法并用多种现代分析测试技术对K_3Na(FeO_4，)_2进行了表征。

This paper brings forward a approach for textile flaw automatic detection based on optimal Gabor filters. At first the niche genetic algorithm is employed to attain the parameters of the optimal Gabor filters and segmentation threshold based on the feature of the unflawed textile,and then apply the optimal Gabor filter and threshold on the fabric image to achieve the resnlts.

为了对织物缺陷进行快速准确的自动检测，建立了一种基于Gabor滤波器的织物缺陷自动检测方法，即首先根据无缺陷织物的结构特征，应用小生境遗传算法寻找最优的Gabor滤波器参数和分割阈值；然后将待检图像通过滤波和分割来得到检测结果，同时根据响应矩阵的极小值点来计算缺陷的形状特征。

When aircraft approaching the airport,as long as camera can catch several existent installations and world-coordinates of which are known,current positions and attitudes of aircraft can be measured using projection relation by selecting corresponding point and line features.

当航空器飞行至机场附近时，只要机载单目摄像机能够拍摄到若干现有机场设施且已知这些点线特征的大地坐标，即可在图像上提取相应的点线特征，并依据投影关系测量计算出拍摄时刻航空器的位置和姿态参数。

The system categorizes and recognizes the visible urine sediment components based on the technology of image processing and support vector machine.

在应用SVM分类方法的过程中，首先建立已知分类的图像，进而提取图像的特征，再对这些特征进行训练，同时交叉验证确定最优的SVM核函数和参数。

Through Shengou segment of the F4 on the fault trace elements in the data processing and profiling, establish the original deposit structure of the halo of axial deposit with features and geochemical parameters of the axial changes, further establish the deposit structure overprinting halo model .

对葚沟矿段F4断裂内微量元素地球化学数据的处理和特征描述，得出矿床构造原生晕的轴向分带特征及矿床地球化学参数的轴向变化规律，进而建立矿床构造叠加晕模型。

According to the degrees of PSC they have,Shanghai-accented Mandarin interlanguage are classified into four stages as elementary ,intermediate ,intermediate-advanced and advanced.Then the phonologies of Standard Mandarin and Shanghai-accented Mandarin interlanguage are compared in order to find out the phonological differences between these two dialects. Based on the statistical results, the writer chooses ten typical kinds of pronunciation errors of finals according to the rates of pronunciation errors of finals on stages.Then, the phonetic level analysis is made on them for the four stages respectively. Furthermore, acoustic features of vowels, diphthongs, triphthongs and vowels with nasal endings are analysized and compared by plotting vowel charts and formant patterns for them. Finally, the writer gets some preliminary results of the typical pronunciation errors of finals during the whole process of Shanghai-accented Mandarin interlanguage and on the stages of it respectively.

本文结合当前这种实际研究和应用的需要，以上海地区普通话过渡语为考察对象，从韵母发音偏误入手，借鉴第二语言习得研究中偏误分析和中介语研究的相关理论，采用实验语音学的方法，随机选取了80位上海地区不同普通话水平等级的应试人的应试录音和试卷作为本研究使用的语料，并将其分别对应于上海地区普通话过渡语的四个阶段，重点考察这80位处于不同阶段的应试人在测试的读单字部分的韵母发音偏误现象，通过对各阶段所有应试人的各类韵母发音偏误出现率的统计分析，展示出上海地区普通话学习者在韵母习得方面产生的偏误在过渡语各个阶段上的分布特点及趋势；再根据各阶段各韵母发音偏误率的统计结果，选取各阶段共同具有的十类主要的韵母发音偏误，分别绘制过渡语各阶段的偏误音声学元音舌位图或共振峰模式图，并与标准普通话中相应韵母的声学元音舌位图或共振峰模式图进行比较，从而展示出上海地区普通话学习者的主要韵母偏误类型在过渡语不同阶段上各自的声学特征、偏离标准音的程度和相关趋势，并从一定程度上反映了这一地区普通话学习者在韵母习得方面的能力发展轨迹，为普通话教学及培训中如何提高教学效率问题提供一定的参考依据，也为普通话水平测试各等级标准声学特征的建立，乃至为将来测试的计算机化提供了可靠的声学参数。

The features, facts, experiments and rules of the product design can be encapsulated into various kinds of case libraries by using the technologies of parametric design, feature-based modeling and software integration. Based on "From top to bottom" intelligent assembly design idea, the digital method of design and analysis from the whole design to the parts' design of the stairs and plats of container is accomplished.

综合参数化设计、特征建模和软件集成等技术，将产品的特征和产品中凝聚的知识、经验和规则一体封装，提出了&自上而下&的智能布梯的设计思路，并建立内容丰富的实例库，实现了从集装箱起重机梯子平台总体设计到零部件设计与分析的数字化。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。