种特征

The topographical parameters have been analyzed by taking into account the thermal effect during the friction process. As the results, three kinds of typical topographical features have been observed for the worn surfaces of C G iron with various P content. Namely, C G iron with 0.05% P, 1.30% P, and 0.70% P show worn surfaces characterized by groove ridge, peak pits and their combined topography. The C G iron specimen with peak pits type worn surface topography showes the lowest wear rate and highest friction coefficient, while that with groove ridge type worn surface topography shows the highest wear rate and lowest friction coefficient. The groove ridge type worn surface has a relatively large value of surface height deviation and void volume ratio and negative large value of skewness, which is contrary to the peak pits topography.

结果表明：度销磨损表面主要呈现犁沟型、孤岛型及二者的混合型3种形貌特征，其中具有孤岛型磨损表面形貌特征的试样的摩擦系数较高，磨损率较低；而具有犁沟型磨损表面形貌特征的试样的摩擦系数最低，磨损率最高，分析表面形貌参数发现：犁沟型表面形貌具有最大的表面高度偏差和表面空隙率及高负值的表面高度分布参数；而孤岛型表面形貌的表面高度偏差和表面空隙率最小，表面高度分布参数为高正值。

In fact, combined classification is not only a trend in pattern recognition field, but an effective method for sure that has been proved. Based on these problems, multiple features of the nephogram data have been extracted in this paper, and according to the theory of information fusion, a classification method of multiple features of nephogram has been constructed. Recurring to the idea of information fusion, the performance of classification has been remarkably enhanced.

另外，针对目前卫星云图分类研究大多集中于利用单一特征集结合分类器进行云图分类，从而忽略了各特征相结合所具有的分类潜能问题，本文提出了一种卫星云图多特征融合分类方法，借助于信息融合的思想，使得分类器的性能得到明显的提升。

Since the size of image covariance matrices is same as that of images and the within-class image covariance matrix is usual nonsingular, thus, the difficulty resulting from high dimensionality and singular case are artfully avoided.

该文提出了一种基于复向量进行特征表不的并行融合新策略，建立了复线性投影分析的理论，给出了复特征空间内进行线性特征抽取方法，事实上，经典的线性投影分析理论与方法只是本文理论与方法的一个特例。

Also how to calculate normal vector of the original surface is introduced.

在第三章，介绍了特征的准确定义，并介绍了特征提取算法，并在特征提取的算法中，介绍了一种计算网格曲面顶点法向量的比较好的方法。

This paper presents a two-step approach with limited knowledge to resolve pronominal anaphora within Chinese text, which only uses number features, gender features and the features of grammatical roles.

结合汉语的特点，提出了一种弱化语言知识的人称代词消解方法，仅仅用到了单复数特征、性别特征和语法角色特征。

The first adjustment was to replace logarithm function by S function for modeling the inner hair cells in cochlea,and the other was distributing frequency bins on frequency axis with the width of frequency bin proportionably increasing.Furtherm...

利用ZCPA模型对四种转子故障进行了特征提取试验验证，结果表明，该模型只使用少量特征数据(如16个)即可有效表征不同故障，同时，对同一类型故障的特征提取结果具有很好的稳定性和一致性，具有一定的工程应用前景。

At last the dissertation presented the algorithm of feature surface recognition based on quadric surface fitting and geometry property.

其次研究了数据的区域分割，并提出了一种基于三角网格的分割算法：通过计算三角网格点几何特征以及已经得到的特征线来识别边界特征，运用区域增长算法对三角网格进行分割。

Bakhtin points out that the main characteristic of Rabelais writhing is grotesque realism decided by culture of folk humor .

巴赫金认为拉伯雷的创作是一种怪诞的现实主义，其特征是极度的夸张、降格和双重性，而这些特征是源于民间诙谐文化，只有深入了解民间诙谐文化的形式、特征，尤其是它的深层本质，才能对拉伯雷的创作，对怪诞现实主义有更深一层的认识。

Numerical results demonstrated that there are three kinds of the instability for the under-expanded supersonic jets according to their shock cell structure patterns:(1) the regular reflection shock cell with a single shear layer,(2) the Mach reflection shock cell with two shear layers and (3) the curved Mach stem with a relatively high expansion ratio.

计算结果表明欠膨胀超声速射流的失稳机制根据射流激波结构的特征可分为3种失稳模式：具有规则反射激波结构和单一剪切层特征的射流不稳定性；带有马赫反射激波结构和双剪切层特征的射流不稳定性；具有弯曲马赫杆和高度欠膨胀射流的不稳定性。

This paper presents an algorithm of point correspondence in which the spectral theory,partial characteristics of points and the method of probabilistic relaxation are combined.

文章提出了一种将谱图理论、特征点的局部特征和概率松弛法相结合的特征点匹配算法。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。