提取

In image processing, method as follows will be introduced in this paper: a method combining image threshold iterative segmentation with threshold interpolation, edge detection operator Sobel and LoG, edge linking method using delation operator based on mathematical morphology, using boundary tracking and projection method in edge distill process. Through this method, measurement of wheelset will be met precision demand.

本文阐明了图像的分通道自动采集过程，以及对采集到的原始图像进行预处理过程，达到图像去噪声的目标，本课题采用了阈值分割中迭代阈值和阈值插值相结合的方法，Sobel算子、LoG算子边缘检测算法，基于数学形态学的膨胀运算子进行边缘断点连接以及目标提取中的投影法和边缘跟踪方法，使得提取轮对图像边缘达到测量精度的要求。

In the corn embryo, the fat content reaches as high as about 58％, which will effect the extractionand depuration of GSH, so we must extract it thoroughly.

玉米胚中脂肪含量高达58.45％，将影响谷胱甘肽的提取及纯化，必须最大限度的把脂肪提取出来。

The feature extraction methods of LOFAR spectrum, envelop spectrum and waveform structure are studied. Based on the study of third order cummulant, the feature extraction method of diagonal slide spectrum is presented.

研究了水下目标辐射噪声信号的LOFAR谱特征、包络谱特征、波形结构特征提取方法，在对三阶累积量的性质进行分析的基础上，提出了三阶累积量对角切片谱特征的提取方法。

The Dichondra Repens forst polysaccharides was extracted by ultrasonic wave in different temperatures (20, 40, 80, 100℃) and water-bath and followed by water extraction and ethanol precipitation with sevag method to excise the protein.

比较不同温度条件下超声水提－醇沉和加热回流水提－醇沉提取马蹄金多糖的效率，再分别用Sevag法去蛋白制得粗多糖，从而确定一种马蹄金多糖提取的最适方法。

Based on the theories of the first two chapters, chapter 5 introduces the theoretical foundation and method of the software design of the license plate recognition system in detail. In this system, a license plate is fixed in a position and cut apart by verge examination based on the differential operator and threshold algorithm. Then outline method and projection method are used as methods of characteristic extracting, lastly neural network is used as a method to recognition the single character.

第五章是在前两章的理论基础上，详细介绍了车牌识别系统软件设计的实现方法和实验结果，应用图像分割的理论对车牌进行边缘检测和提取，利用轮廓和投影的方法提取字符的特征，最后用神经网络的方法对所得字符进行识别。

The chlorophyll protein complexes of the thylakoid membranes solubilized with high concentration of digitonin combined sonication are isolated by means of nondenatured DOC-PAGE, and their biochemical and photochemical properties examined.

采用含PEG保护剂的提取介质提取类囊体，高浓度毛地黄皂苷与超声波破碎类囊体膜，非变性DOC-PAGE分离色素蛋白复合物。

Point clouds are discrete data points without the topology relationship between them. So, to facilitate and expedite the extraction of contour points for the late NPR style, firstly we should simplify the point cloud data. In other words, non-contour points should be eliminated but their contour points and feature points should be retained .

点云数据本身是无拓扑关系的离散数据点集，所以，为了方便和加速后期非真实感绘制风格化所需轮廓点的提取，首先对点云数据进行了"粗略"地简化处理，即剔除点云数据中非轮廓点保留了其轮廓点和特征点；然后应用判定准则提取出所表示物体的轮廓点并对其进行"归并"形成便于NPR风格化处理的特征轮廓线；最后再对得到的轮廓线进行NPR风格化效果"加密"处理。

At the best condition, the distilling rate was higher and its average one was 16.50%.

在优选提取条件下具有较高的提取率，平均为16.50%。

The changes of total reducing substances, oxalate extractable Fe, dithionite citrate bicarbonate extractable Fe and phosphorus adsorption in oxic and anoxic layers of two paddy soils during 6 week flooding were examined under laboratory conditions.

在实验室条件下对两种水稻土在为期 6周的淹水过程中，其氧化层和还原层土壤中还原物质总量、草酸盐可提取铁、连二亚硫酸钠-柠檬酸-碳酸氢钠可提取铁和磷吸附的变化进行了研究。

The detailed analyzed and simulating of focusing error signal of optical pickup based on oblique parallel plate glass was carried out. The new scheme for generating focusing error signal based double reflection plane BSP was proposed. As a result, the structure of optical pickup was simplified, and the cost of optical pickup was reduced. The scheme was not reported in domestic and international literature formerly. Now, author obtained the patent on this scheme.

作者对采用倾斜平板玻璃进行误差信号的提取方案进行了详细的理论分析和模拟，并提出采用双反射面BSP进行聚焦误差信号的提取，该方案可以简化光学读取头的结构，并降低光学读取头的成本，该方案未见国内外报道，目前已经获得专利。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。