查询词典 sample method

Then, a new quantitative analysis method, based on the observed dependence of the linear correlation coefficient between spectra of sample analyzed and the spectrum of reference certified samples, was introduced and analyzed for its application.

自相关定量分析通过建立标准参考样品的光谱数据库，将分析样品多次测量的光谱与各参考样品光谱进行相关性分析，依据相关性系数的大小与分布概率，判断分析样品的特性与成分。

A stomach large volume injection/gas chromatography-mass spectrometry(LVI/ GC-MS ) coupled with solid phase extraction method for the determination of 13 pesticide residues in rice sample was presented in this paper.

利用固相萃取柱对样品进行前处理，采用胃袋式大体积进样技术结合气相色谱-质谱，建立了大米中13种有机磷农药的快速分析方法。

It is satisfactory to lyse sperm with sample preparation Method Ⅰ and to separate sperm proteins by IPG-DALT for establishing 2-D map of human sperm.

采用蛋白质提取方法一制备精子蛋白质进行IPG-DALT电泳的方法适用于建立精子全细胞蛋白质谱。

Methods Fe3O4 magnetic nano-particles were prepared with a co-precipitation method, and their properties were investigated using transmission electron microscopy, photon correlation spectroscopy, X-ray diffraction, vibrating sample magnetometry, and Fourier transform infrared spectroscopy. The heating property was studied as well.

应用改良化学共沉淀法制备Fe3O4磁性纳米粒子，通过透射电镜、激光粒度仪、 X-射线粉末衍射仪、振动样品磁强计和傅立叶红外光谱仪等多种方法对所制备的Fe3O4磁性纳米粒子进行表征，并对其体外升温性能进行了考察。

The inventive method comprises: first calculating the distance of each couple of writing brush words in the word base at certain threshold value, to generate one local distance diagram, and building the index based on B tree of said diagram; when user provides one sample writing brush word, system based on demand searches the word similar to the word; the user based on dynamic feedback selects the word similar to the mantic of said word.

在实施本方法的过程中，首先对书法字库中的每对书法字在一定阙值条件下求得距离，生成一个局部距离图，并对该图建立基于B 树的索引。当用户提交一个例子书法字后，系统根据要求检索出与该字相似的字，然后用户可以根据相关反馈动态选择与该字语义相同的字。

The measurement on standard sample shows the method has a maximum error within 4%.

对标准件的测量表明该方法的最大误差在4％以内。

The former three chapters are about theoretical research, and the forth chapter is about empirical research. The theoretical research part generalizes the theoretical basis, theoretical model and the concept of city competitiveness both at home and abroad. According to these theories, the paper introduces the complete and explicit definition of city competitiveness and brings in a new city competitiveness model .The paper emphasizes on empirical research using the data in 2004 as sample, whose objects are ten big cities:Guangzhou, Shenzhen, Tianjin, Shenyang, Dalian, Nanjing, Hangzhou, Wuhan, Chongqing and Chengdu. Firstly, on the basis of mean square deviation method, it finds out both the scores of integrated competitiveness of cities and other factors, based on that analyze the relationship between them. And then the paper computes the scores of competitiveness of cities above by principal component analysis and sorts out them for assessment.

理论研究部分主要是概括的叙述了城市竞争力研究的理论基础和理论模型及国内外城市竞争力的概念，在此基础之上对城市竞争力给出了完整明确的定义，并提出了新的城市竞争力模型；全文的重点在实证分析部分，实证分析是以广州、深圳、天津、沈阳、大连、南京、杭州、武汉、重庆、成都10个城市为研究对象，以其2004年的数据为样本，首先用均方差的方法计算各城市综合竞争力与各要素竞争力的得分，以此来分析综合竞争力与各要素竞争力之间的关系，然后采用因子分析的方法计算2004年各城市综合竞争力的得分并给出排序进行评价。

Through orthogonal experimental design, the most simple and convenient method to draw Paclitaxel is: First ,metage the sample 3g and put it into the mixed solution of 20ml.

通过正交试验设计，样品重是提取测定的关键因素，同时，浸泡时间还是紫杉醇、10—去乙酰巴卡亭—Ⅲ、巴卡亭—Ⅲ提取测定的第二个关键因素。

Since the characteristic properties of polymers depend intimately upon the size of the macromolecules present in the sample it is essential to have a method of describing their dimensions.

由于聚合物的特性首先与样品中大分子的尺寸有关，所以有一种描述分子大小的方法很关键。

The method of Newton iteration extended on kristjan to solve the match between the sample points and design model in checking surface is present.

提出基于kristjan法扩展的牛顿迭代算法来解决曲面检测问题中的采样测量点与设计模型的匹配问题。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。