提取

Aiming at difficulty of weak impactive roller bearing fault feature extraction of composite faults, a demodulation method based on the second generation wavelet and the empirical mode decomposition is proposed to separate the coupling features of a composite fault and to extract the fault feature of a roller bearing.

针对复合故障中滚动轴承微弱冲击性故障特征难于提取的问题，提出基于第二代小波和EMD的解调方法，进行复合故障的耦合特征分离和轴承损伤性故障微弱信号的特征提取研究。

By using this new method the optimum extraction condition was obtained as follows extraction time 19.39 hours impregnant capacity 18.90mL and percent of petroleum ether 46.26%.

结果表明，脂质提取的优化工艺条件为2.00g海藻粉、提取时间19.39h、溶剂的量18.90mL石油醚百分含量46.26%。

Feature extraction is one of the hot topics in the field of pattern recognition.

特征提取是模式识别研究领域的一个热点。本文提出了一种基于独立成分分析和线性鉴别分析的特征提取方法。

The cluster index of the file you're trying to extract, or at least the first cluster

就是我们要提取的文件所在的簇，或者说是我们要提取的文件的第一个簇

The pigment in colored cotton fibers was extracted by methanol at room temperature. The results of color reactions HCl-Mg reaction, NaBH4 reaction, NaOH reaction, FeCl3 reaction and Pb(Ac2 reaction of the pigment extractive showed that the pigment extracted by methanol was flavone or flavonol with two adjacent hydroxide groups (Table 2, Fig. 1). The results of UV spectral analysis further proved that the pigment extracted by methanol from brown fiber belonged to flavone with two adjacent hydroxide groups in B ring, and that from the green fiber contained not only flavone but also flavonols with two adjacent hydroxide groups both in A ring and B ring and indican replaced a hydroxide group at 3-site of A ring Fig.

通过盐酸－镁粉反应、四氢硼钠还原反应、碱反应、醋酸铅反应、氯化铁反应和紫外光谱吸收的分析表明，甲醇室温提取的棕色棉纤维色素可能是黄酮类化合物，B环上带有邻二酚羟基；甲醇室温提取的绿色棉纤维色素除黄酮类化合物外，还含有3-位羟基被糖甙化的黄酮醇类化合物，A、B环上都带有邻二酚羟基。

This item called "oasis milk", the industry make great use of cow colostrum resources in Zhaodong region, ushering in Denmark low temperature spray fog auto flowing water line from Europe. Adopt the biology withdrawing technology of scientific key laboratory from Northeast Agricultural University, then process deeply through the method of science and technology innovation. In this way, withdrawing the beneficial composition such as immunity globulin albumen, lactoferritin and casein active peptide etc. then through inspissation, separation and withdrawing to refine 100% colostrum crystalline flour.

项目简介：本项目是绿洲乳业充分利用肇东地区的牛初乳资源，引进欧洲丹麦低温喷雾自动流水线，采用东北农大乳品科学重点实验室生物提取技术，通过科技创新对牛初乳进行立体深加工，将牛初乳中的有益成份免疫球蛋白，乳铁蛋白及酪蛋白活性肽等经过浓缩，分离，提取精制而成100%的初乳晶粉。

A time domain singularity extraction technique is presented to calculate singular integrals in time domain electric field integral equation solver.

介绍了一种基于奇异提取技术的时域积分方程中奇异积分的处理方法，在奇异提取过程中，电磁波传播的延迟效应对积分的贡献包含在内。

The methods of adaptive median filter, variance ratio of interclass and intraclass segmentation, and mathematical morphology were used to decrease the noise of original welded seam image, to extract welded seam region, and to carry on high frequency enhancement transformation for the interior of extracted welded seam with frequency range sharpening.

利用自适应中值滤波方法和类间、类内方差比分割法及数学形态学方法对原始焊缝图像进行降噪和提取焊缝区域，并对提取的焊缝内部进行频域锐化的高频加强变换。

The features which extracted for the weighing approach are used to be the basis of classification. The intermediate result is used to determine which word is the antecedent.

分类时使用加权消解方法时提取的特征，然后从SVMLight分类的中间结果中提取消解结果。

The spectrophotometric method examination resultindicated, withdraws sample DNA rate in, OD260/280 value in;Agarose the gelatin electricity swims the examination result to indicate,molecular weight size about 23kb; Withdraws sample DNA may use EcoRIand the HindIII restrictive internally tangent enzyme carries on cuts.

分光光度法检测的结果表明，提取的样品DNA得率在20ug/g-80ug/g之间，OD260/280值在1.9-2.0之间；琼脂糖凝胶电泳检测的结果表明，分子量大小在23kb左右；提取的样品DNA可以用EcoRI和H indIII限制性内切酶进行切割。

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。