提取

The research carried out an experiment of extracting water from inland limnetic wetlands using TM remote sensing imagery based on many arithmetic,and concluded that spectrum classification was the best among the area accuracy index,extraction accuracy index and visual effect index,the following was single band threshold and vegetation index method,however,multi-band relationship and water index method was the worst.

研究基于TM遥感影像，运用多种方法针对典型内陆淡水湿地的水体信息进行了提取实验，通过对实验结果的分析得出：在面积的准确性、提取的准确度以及视觉效果3种指标下，光谱分类法较其它方法效果要好，其次为单波段阈值分析法与植被指数法，较差的是多波段谱间关系法与水体指数法；影响提取效果的主要原因是湿地水体提取不够完全，这是由影像的分辨率及湿地特殊的水文条件所造成的，采用像元分解及多源遥感数据融合技术将成为提高水体提取精度的重要手段。

Because the morphine content in the mown poppy pod was relatively low for the geographical origin identification of the poppy, the unknown poppy pod was suggested to be used to achieve the aim of morphine 〓C determination by GC-C-IRMS.

2罂粟壳中吗啡提取方法的研究研究了从罂粟壳中提取吗啡的方法，所选的三种提取方法均能达到从罂粟壳中提取吗啡的目的，吗啡提取率达90％以上。

The effects of circumfluence temperature were also studied. The result showed that it was optimal to extract motionlessly 60-mesh-sieved rubber seed for 1h using petroleum ether. The yield of solvent extraction was 10% higher than that of three or four times machine-squeezed oil.

结果表明：橡胶籽仁含油率为46.72%；从橡胶籽油的成本、操作安全和劳动生产效益考虑，在橡胶籽仁粉能过60目筛、橡胶籽仁粉与溶剂为10：75、常温常压下，以石油醚为提取溶剂、静置提取方式、提取时间1h最佳，溶剂提取橡胶籽油达35.18%，比经3～4次机械压榨提取橡胶籽油高10%左右。

A method was developed for the extraction and determination of oleanolic acid from Chinese quince.

本文应用回流提取法、索式提取法、冷浸提取法和超声波提取法对木瓜中的齐墩果酸进行了分离提取，并采用高效液相色谱法测定其含量。

In this paper ,we utilize the imagery with greater 1 meter resolution which is so called very high resolution as experimental data and do the research of ribbon road and simple building roof , and we talk about the process and method of extraction from high-resolution remotely sensed imagery :the representation of road and building in high-resolution image is analyzed ;a method of semi-automatic extraction for ribbon road based on angular texture signature and profile matching is promoted ;a algorithm for road extraction based on Snakes model is compared and analyzed ;the method of object-oriented image analysis and classification is introduced and we utilize this method to extract simple building roof semi-automatically ;the algorithm of road extraction is implemented as prototype system ;finally , the practicability of above-mentioned method are evaluated .

本文以分辨率大于1米的超高分辨率遥感影像作为试验数据，以具有一定宽度的带状道路和简单建筑物屋顶作为研究对象，探讨分析了高分辨率遥感影像中地物要素的半自动提取过程和方法：分析了高分辨率遥感影像中道路和建筑物的特征表现；提出了一种基于角度纹理特征和剖面匹配的带状道路半自动提取方法；对比分析了基于Snakes模型的道路提取算法；介绍了面向对象的图像分析和分类方法，使用该方法对简单建筑物屋顶进行了半自动提取；以原型系统方式对道路提取算法进行了实现；最后结合试验，对上述各种方法在实用性方面进行了评估。

ConclusionThe extraction of chromone from S.divaricata with ultrasonic wave is found to be a rapid and efficient extraction method with short time and high production yield.

结论采用超声波提取技术提取防风色原酮，提取时间短，提取效率高，可用于防风色原酮的提取。

Extraction conditions of ethanol were optimized by orthorhombic analysis. The best condition: extracting temperature (30℃), extracting time (6h), shakers rotating speed (200 r/min), the ratio between Dictamnus dasycarps Turcz.

通过正交试验对白鲜皮的无水乙醇提取条件进行了优化，确定其最佳的提取条件为提取时间6h，白鲜皮与溶剂质量体积比为1∶10，提取温度30℃，摇床转速200r／min，提取3次。

Results: the best extracting condition for ellagic acid was to add 8 times amounts of the water solution of 1 mol/l hydrochloric acid, and to reflux for 60 min and extract twice.

结果：鞣花酸的最佳提取工艺为用1 mol/l的盐酸水溶液、8倍量、回流提取60 min、提取2次；结论：溶剂类型对鞣花酸的提取率影响最大，本研究确定的鞣花酸提取工艺合理、可行。

ResultsThe optimal conditions were as follows:raw material 0.500 g Ligustrum lucidum Ait dry dry powder,the extraction agent 45% alcohol solution,the ratio of raw material to extraction agent 1:50,the microwave power 464 W,and the extraction time 300 s for three times.

结果原料0.500 g的女贞子粉末，提取剂为45%的乙醇，提取剂用量为1∶50，微波功率为464 W，提取时间为300 s，提取3次为最佳的提取工艺。

The single factor tests and orthogonal experimental designs were applied to optimize the extraction conditions for the crude polysaccharides from Marasmius androsaceus.

通过单因子和正交实验确定安络小皮伞菌丝体粗多糖提取的最优条件为：料水质量体积比1∶30、提取温度70℃、提取时间2h、提取次数1次，在此条件下粗多糖的提取率达到11。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。