特征

Distinguishability and stability of each feature parameter extracted form the footprint outlines in this study are analyzed based on variance theory as a reference for feature selection.

运用方差分析理论，讨论了特征参数的个体差异性和同一稳定性，为足迹识别的特征选择提供了参考依据。

In this article, firstly, the significance, features, conceptual development and implementary principles of recurrent education are expounded,and its economic value is illustrated in terms of its practicality and economic function; then the importance and properties of lifelong learning are analysed,and it is held that the distinguishment of and stress on recurrent education in the practice of lifelong education is the most essential and important means for the practical application of lifelong learning notions;lastly,the current situation of and obstacles to recurrent education are made clear and the implementary tactics and approaches are presented.

摘要］本文首先论述了回流教育的意义、特征、理念的发展以及实施原则，接着从回流教育的实用性及其经济功能来说明回流教育的经济价值；然后再论述终身学习的意义与特征，并从终身学习的实践途径中凸显回流教育的实施乃是实践终身学习理念最基础、最重要的途径。此外，文中也指明了目前实施回流教育的现况及阻力，提出了回流教育的实施策略与实施途径。

Results showed that fractal dimensions of different disfigurement categories have better distributivity aiming at the mean values and mean square values of nine characteristic quantities,and it was feasible to use feature parameter to describe wood surface disfigurement.

针对这九个特征量的均值和均方差值做了分析，结果表明不同缺陷类别的分形维数有较好的分布性，用这些特征参数描述木材表面缺陷是可行的。

The main features of the regional eco-environment problems are regional diversity,factor fluidness,and regional spatial types.

区域生态环境问题的区域特征主要表现为特征的区域差异性、要素的区域流动性和区域的空间类型。

The main features of the regional ecoenvironment problems are regional diversity, factor fluidness, and regional spatial types.

区域生态环境问题的区域特征主要表现为特征的区域差异性、要素的区域流动性和区域的空间类型。

The main features of the regional coo-environment problems are regional diversity , factor fluidness , and regional spatial types .

区域生态环境问题的区域特征主要表现为特征的区域差异性，要素的区域流动性和区域的空间类型。

The scale 7, 10 and 13 are used to extract the feature vectors, which are used to train the artificial neural network. The trained neural network is used to classify semen cuscutaes and Japanese dodder seeds, which are collected from different places all over the country.

选择第7、10、13分解层数的特征向量，进行人工神经网络训练，再用训练出来的网络对不同产地的植物种子菟丝子和金灯藤所得FTIR小波提取的特征向量进行分类。

Also in the 3-D space, we assign the 20 amino acids to 20 vertices of the dodecahedron. By the symmetry of the dodecahedron we obtain 3-D representation of 20 amino acids, and 3-D graphical representation and the corresponding numerical sequence of protein sequences. And similarity and dissimilarity analysis based on the invariants of graphs and characteristics of numerical sequences are given for nine RNA secondary structures of RNA-3 of virus. We construct sequence phylogenetic tree of a group of cytochromes C protein.

在DNA三联体密码子表示的基础上，在半复平面上给出了蛋白质序列的非退化的2-D图形表示，同时利用复向量的主要特征—模和相位，给出了蛋白质序列的一种数值刻划，进一步在3-D空间里，把20种氨基酸分别分配给正12面体的20个顶点，根据正12面体的对称性得到了20种氨基酸的3-D表示，进而得到了蛋白质序列的3-D图形表示和对应的数字序列，并利用图的不变量和数字序列的特征比较了9种动物的神经元

The main results that have been accomplished in the paper are listed below: 1. Accumulated lots of experimental data of life-parameter signals with the equipment of detecting the wounded. 2. Provided a method of frequency domain signal integration based on FFT to detect non-contact life-parameter signals. 3. Built up an algorithm of lifeform identification which was based on the time and the frequency domain analysis of life-parameter signals. 4. Developed an application software of life identification for the wounded detecting equipment system S2000?

取得的主要研究结果有：1、用现有的伤员探测实验平台采集了大量生命参数信号，积累了实验数据，为信号处理及信号特征提取研究打下良好的基础；2、提出了基于FFT频域积累的方法进行非接触生命参数信号分析与检测；3、综合时域、频域中生命参数信号特征分析的实验结果，形成生命体识别算法；4、为52000—l型伤员探测装备样第2页第四军医大学硕士学位论文机研制了伤员探测生命体识别软件系统。

Since the character information is dominant in character image and the font information is feeble, the font information is submerged by character information.

本文提出的特殊的小波特征很好地解决了这个问题，为实现一个文本无关条件下的、基于单个汉字字符的高性能字体识别系统打下了坚实的基础。鉴别特征的提取和高性能分类器的设计。

He is the most remarkable man that I have ever known.

他是我知道的人中最值得注意的人。

Increased appearance of lymphocele was noticed in patients with diabetic nephropathy, congenital malformations of the urinary tract, and inflammatory diseases, including glomerulopathy and extraglomerular ones, after high-voltage radiotherapy and after removal of the renal graft.

经过高压放射疗法和切除移植肾后，在糖尿病肾病患者、泌尿系统先天性畸形患者和炎症患者身上发现淋巴囊肿有所增加，包括肾小球病和球外疾病等。