提取

With the analysis of the principal curves,the extended polygonal line algorithm and the specialties of fingerprint,the original extended polygonal line algorithm is improved a lot,and becomes much more suitable for the extraction of the skeletonization of fingerprint.

在分析主曲线、推广多边形算法和指纹数据的特点后，尝试使用主曲线来描述指纹特征，对原推广多边形算法作了较大改进，使其更适用于指纹骨架的提取，最后实现了基于骨架的指纹特征提取。

Using the method of positive direction logic illation,finally the control connection between inflow in combustion section and resident time of waste in each furnace section is found.

分析了城市生活垃圾焚烧炉中关键的技术环节垃圾自动燃烧的控制过程，在此基础上提出了一种控制燃烧过程的智能控制方法，根据提取的影响焚烧过程的特征行为空间，分析了在不同种情况下行为提取算子，找到了以空气进气量和炉床运行速度为基本控制变量的控制基元组合。

MethodsThe proper extracting condition was optimized by orthogonal tests with the amount of extracted total flavonoids and the ratio of poultice as index in Herba Lysimachiae.

方法通过正交试验以处方中金钱草中所含总黄酮的提取量和出膏率为定量指标，确定合理的醇提取工艺。

Results The optimal extraction condition of total flavones in Primula sikkmensis Hook was extracting with 20 times volume of sample weight with 60% alcohol for three times.

结果钟花报春花总黄酮最佳提取条件为60%乙醇，20倍量，提取3次。

A principal curve is used to represent the shape feature of every region. Then Hough transform is applied to these curves to detect a logarithm spiral equation which can match the curves well.

首先螺旋云带的提取建立在对云图恰当分割的基础上，从云团的骨架中提取出能够反映螺旋云带特征的局部螺旋线。

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。

The extract is prepared by the method containing the following steps: water and/or organic solvent are used as extractant, and the psoralea fruit extract is extracted and obtained from the seeds of psoralea fruit.

所述提取物是用包括如下步骤的方法制备的：用水和/或有机溶剂作为提取剂，从补骨脂种子中提取得到补骨脂提取物。

The total DNA has been extracted from the fresh leaves of 4 medicinal species of pteridophyte with CTAB, SDS, to compare their effects on DNA extraction. The result shows that the optimum preparation method obtained to extract high-quality DNA lays theoretic and practical base for PCR amplification and primer design, for filtrating related gene of the active elements from leaves of the four pteridophytes.

以四种药用蕨类的叶片为材料，采用改进的CTAB法、SDS法分别对四种蕨类进行了总DNA提取效果的比较分析，结果表明，通过实验获得最佳的DNA提取方法，为PCR扩增，引物设计，为筛选四种药用蕨类中的活性成份的相关基因奠定理论和实践基础。

MethodsThe flavonoids were extracted by ethanol from Baise's purslane with ultrasonic wave and ethanol extraction .

方法采用超声波乙醇浸提法从百色马齿苋中提取黄酮类物质，对所提取的黄酮类物质进行验证，并用分光光度法测定含量。

With the increase of microwave extraction time,extraction yields of rutin,epicatechin,quercitrin and quercetin were firstly increased and then decreased.

在提取压力超过400kPa时，芦丁开始失去一个芸香糖转化为槲皮素；随着微波照射时间的延长，芦丁、表儿茶素和槲皮素提取产率先增加，而后下降。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。