模特征

Adaptive subdivision is performed only in the areas facing to the viewpoint in the pre-process. And in the each adaptive subdivision, we choose the normal angle of the adjacent faces as the control error to detect whether the approximation is sufficient. Sharp edges are automatically tagged according to the given thresholdθand subdivision masks are designed based on different sharp degrees.

在预处理过程中，只选取面向视点的网格作为能够被进一步自适应细分的网格；在自适应细分过程中，用相邻面片的法向夹角作为控制误差来反映细分的逼近程度是否足够；并根据预设的阈值θ自动标记网格中的尖锐特征边，重新设计尖锐特征处的权值掩模。

Finally, we put forward the concept of differential characteristic set modulo with respect to a polynomial and present the properties of the characteristic set.

最后，对微分特征列集理论进行了推广，给出了微分多项式系统的模微分特征列集的概念，并研究了其具有的性质。

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 propagation modes in the lenslike medium , including the spot size, field distribution pattern and their propagation constant,are obtained by solving the Helmholtz equation in the cylindrical coordinate.

从求解柱坐标内亥姆霍兹方程出发，导出了类透镜介质传导模的特征参量、场分布状态及传播常数，求出了入射激光束和导模之间的耦合系数，并讨论了它们的物理意义。

Although any unimodality type partially expresses limited semantics less or more, video semantics are fully manifested only by interaction and integration of any unimodal. Video data comprises plentiful semantics, such as people, scene, object ,event and story, etc. A great deal of research has been focused on utilizing multi-modality features for better understanding of video semantics. Proposed in this paper is a new approach to detect semantic concepts in video using co-occurrence data embedding, SimFusion, and locality preserving projections from temporal associated co-occurring multimodal media data in video.

该方法对所提取视频镜头的多模态底层特征，根据共生数据嵌入(co-occurrence data embedding)和相似度融合进行多模态子空间相关性传递而得到镜头之间的相似度关系，接着通过局部不变投影(locality preserving projections)对原始数据进行降维以获得低维语义空间内的坐标，再利用标注信息训练分类模型，从而可对训练集外的测试数据进行语义概念检测，实现视频语义信息挖掘。

The rapid back_and_forth grinding method was adopted in the precision machining of the curve point of the blanking punch, and the processing efficiency was effectively enhanced.

介绍了IC芯片管脚簧片精密冲裁加工中冲裁凸模的加工现状及存在的问题，在冲裁凸模曲线刃口的精加工中引入快速往复磨削加工方法可以有效提高加工效率，还分析了快速往复磨削加工的特征。

Shaking table test on 1/10 building model was carried out. Through hammer blow test and sine wave swept test, the model's parameters were acquired. By earthquake wave excitation, the model's earthquake response, failure traits and aseismic property were gained. Through ratio conversion, prototype's mode parameters and aseismic capability were studied.

进行了1／10比例模型房屋模拟地震振动台试验，通过锤击与正弦波扫频试验得出模型房屋的模态参数，通过地震波激励试验得出模型房屋的地震反应、破坏特征以及抗震性能，通过相似比换算研究了原型结构的模态参数与抗震能力。

The effects of frequency veering features on mode localization of the mistuned system were analyzed with L. It is shown that the distance between the frequency veering curves at nodal diameters is a key parameter, and it exists a minimum value for the parameter, around which blade modes are very sensitive to mistuning, and can result in dramatic fluctuation of the mode localization degree.

研究表明，频率转向曲线之间关于节径的最小间隙是反映频率转向特征的重要参数，并存在一个转向频率间隙的极小值点，在该极值点附近，频率转向区内的模态对叶片失谐非常敏感，并会导致模态局部化程度剧烈变化。

It is concluded that the different cells in the organ of Corti under physiological environment have different elastic properties. The measured Young's modules of the cells on the intact organ of Corti reflects their real elastic properties more precisely than that of detached cells of the organ of Corti.

结果表明，基底膜径向排列的组织结构不同，杨氏模量存在明显差异，在整块基底膜标本上测量Corti器各结构的杨氏模量能更准确地反映它们在生理状态下的弹性特征。

In order to help for evaluating properties of soil in interaction more precisely, the paper applies elastic theory solution on different modulus in tension and compression for vertical load into semi-infinite elastic body. Through quoting Heaviside function, the solution of elasticity theory with different modulus in tension and compression is established founded on the solution of elasticity theory for the material incapable in tension and Mindlinsolution for equal modulus.

为使地基土在共同作用中的行为特征评价更为合理，本文应用了半空间问题竖向荷载下地基土的拉压模量不同弹性理论解，该理论解是通过引入Heaviside函数，利用不能承受拉应力材料的弹性理论解并结合拉压模量相等的经典Mindlin解而获得。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。