直接成分

A new approach-two dimensional principal component analysis(2DPCA) is developed for face recognition. 2DPCA approach dont need to transform the image matrix into feature vector. It directly uses the image matrix to construct the sample covariance matrix.

5研究了二维主成分分析(2DPCA)方法，2DPCA方法不需要先将图像矩阵展开成一维向量，而是直接利用图像矩阵来构建样本协方差矩阵，所以2DPCA比PCA的识别时间更短，识别更高。

Using 60Co γ-rays and 70～180 keV X-rays,the test results show that saturation characteristics of the cavity ionization chamber meet the requirement of DIS detector. Direct Ion Storage detector,tissue-equivalent cavity ionization chamber,MOS field effect transistor,saturation characteristic curve

本文从探测器原理出发，设计与研制DIS探测器中组织等效空腔电离室，重点从壁材料、气体成分、腔体形状和尺寸、壁厚度以及绝缘材料等角度，测试电离室辐射性能，以为研制新型DIS探测器奠定基础。1DIS探测器原理图1直接电

Adopt the advanced technology to complete the digest of trepang out of the body.

的肽分子生物酶解技术，可被人体直接充分吸收，有效成分吸收更彻底

It included the development of the trilinear decomposition algorithms as well as the applications of these algorithms to different fields of analytical chemistry, in particular, to three-way fluospectroscopy (excitation-emission matrix fluospectroscopy)In Chapter 2, a method of simultaneous determination of two main components of the Chinese traditional medicine cortex fraxini was introduced.

第二章利用激发-发射荧光分析方法分析了中药秦皮粉末萃取液，结合交替三线性分解算法，在无须预分离的情况下，直接对秦皮实际萃取液中秦皮甲素和秦皮乙素这两种主要成分同时定性定量分析，方法允许在其他组分的干扰共存。

MethodsThe FTIR was utilized to investigate the different parts of Abrus cantoniensis, the secondary derivative spectra and semi-quantitative analysis were used to analysis difference constituents of different parts of Abrus cantoniensis,.

目前，研究鸡骨草的化学成分主要采用紫外分光光度法、反相高效液相色谱法等［4～7］，这些方法前处理过程复杂、耗资多，很难直接应用于鸡骨草药材质量的快速评价。

Objective To optimize the preparation procedure of oral spray of compound Achyranthes aspera.

目的 通过口腔喷雾剂使有效成分直接达到治疗部位，提高疗效，同时增加患者的顺应性。

A modified method was suggested to facilitate the extraction of alkaloidal salts as such from tablets by means of water,aqueous alcohol or other strong polar solvents.

可能代替药典中若干药物的法定含量测定方法，但须注意杂质影响。3。用水或醇自片剂中半微量法滤出有效成分，直接滴定，方法简便，可得满意结果。

According to the results by fuzzy mathematics, it is demon strated that water status in Honghu Lake is ranked to the third classification, which suggests that there is a decreasing trend of water quality due to excessive exploration to aquicolous resources. In application of principal components analysis, we acquired three leading control elements.

运用模糊数学方法得到的结果表明2003年水质状况以Ⅲ类水为主，表明洪湖近年来的水质呈现下降的趋势，这与人类对洪湖水生资源的过度开发有直接的联系；通过主成分分析方法，得到了目前洪湖水质的三个主要控制因素。

This pact can gives natural make-up look without cakey.

高机能性，能达到防水防油不脱妆又能完美呈现自然遮瑕的肌肤及透净的妆感，含妆感极度浮贴的&微细粒子&，以超音速2倍之气流直接推动粒子与粒子的碰撞而产生微细且均匀的粒子粉末，使妆感服贴双重抵抗紫外线效果，能有效保护被阳光曝晒之肌肤妆感不厚重黏腻，让您感受轻爽无负担的魅力肌肤含有长效控油配方，能抑制油脂分泌，给予洁净清爽的肌肤添加亲肌肤性的植物性成分，使肌肤润泽有气色

Previous vegetation investigation in Dinghushan 20ha permanent plot which was established at 2005, suggested that Castanopsis chinensis is the most important species in plot.

在2005年建立的鼎湖山20ha大样地植被调查研究中表明，样地内锥栗在样地植被中的重要值最大，是该地区森林群落构成的主要成分，其分布格局的变化可能直接影响到整个群落的格局演化。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。