查询词典 extraction

Methods:Supercritical CO2 extraction was used with absolute alcohol as entrainer,and the L9(33)orthogonal experiment was designed,and the effects of extraction pressure,temperature and material-entrainer ratio on the extraction rate were investigated.

以无水乙醇做夹带剂，采用超临界CO2萃取法，并设计L9(33)正交实验，考察萃取压力、萃取温度和物料与夹带剂的料液比对萃取率的影响。

The operation parameters include different starfruit weight, flow rate, extraction time, extraction pressure, extraction temperature, different addition volume of ethanol cosolvent, ethanol concentration and other extraction way.

以杨桃量、泄压流速、萃取时间、萃取压力、萃取温度、共溶剂乙醇的添加量与不同萃取方式等为操作变因，配合一次一变因法来进行探讨，以找出最佳萃取条件。

The optimum conditions were starfruit weight (30 g), flow rate (9 NL/min), extraction time (45min), extraction pressure (4500 psi), extraction temperature (65℃), addition volume of ethanol cosolvent (40 ml), ethanol concentration (80%) and static supercritical extraction.

实验结果发现，本次实验最佳条件为杨桃量30 g、杨桃颗粒大小为中颗粒、泄压流速9 NL/min、萃取时间45 min、萃取压力4500 psi、萃取温度65℃、共溶剂乙醇的添加量40 ml 、共溶剂乙醇浓度80 %及萃取方式 SFE-静态，所萃取出之多酚含量1.302 mg/ml 大於非超临界萃取而相同萃取条件下之多酚量0.979 mg/ml。

Extraction of pine nut oil, residual oil dregs food after extraction as well as its producing method, that is obtaining pine nut after exuviating and removing skin; obtaining pine nut oil by exceed critical CO2 hydro-extraction; to get out the residual oil dregs after extraction to dry, then to grind into powder, and adding Chinese chestnut powder and walnut powder to mix as well as dry again to produce complex pine nut nutrition powder.

松籽仁油的萃取、萃取剩余油渣食品及其制造方法，是松籽经脱壳、去衣得松籽仁；进行超临界CO 2 流体萃取得松籽油；萃取剩余油渣取出进行烘干，再经磨碎成粉、加入板栗粉和核桃粉、混合、再次干燥成复合松籽仁营养粉。

The interfacial chemistry, synergistic effects and interfacial kinetics of thesynergistic extraction system D_2EHPA-MPA-Fe~(3+) have been studied, where MPA is amono-alkyl phosphate extraction with long carbon chain. D_2EHPA in the mixed extractionsystem strongly exhibits the effect on the thermodynamics of micella formation and interfaceproperties of MPA. Some thermodynamic parameters of micella formation were obtained.The interfacial adsorption behaviour of D_2EHPA is opposite to that of MPA. Theemulsification for single MPA and the mixed system was discussed. The synergistic effectswere found in this mixed extraction system. It is proved that the process of Fe~(3+) extractionfor non-mixed extraction system is controlled by chemical reaction, the controlling reactionoccurs at the interface, and the reaction rate equation is obtained.

本文研究了协同萃取体系D_2EHPA—MPA—Fe~(3+的胶团形成热力学、界面特性、协萃效应和界面动力学(动力学控制机制和反应速率方程)研究发现，混合萃取体系中的D_2EHPA强烈地影响MPA的胶团形成热力学和界面吸附行为，得到了胶团生成常数、胶团形成自由能和临界胶团浓度的热力学参数D_2EHPA和MPA具有相反的界面吸附行为研究发现D_2EHPA—MPA混合萃取剂体系对Fe~(3+)产生了协萃效应动力学和界面化学的研究结果还证实了非胶束混合萃取体系的Fe~(3+)的萃取过程是受化学反应控制的，控制反应发生在界面上

The article explained the study on oil extraction with petroleum ether (60~90℃) from Xanthoceras sorbifolia Bunge. through single factor test and orthogonal test. It confirmed the optimum extraction condition were as follow: particle size 2 mm,extraction temperature 90℃,extraction time 10 h,ratio of solvent to seed 5:1.

摘要以石油醚（60~90℃）为溶剂，通过单因素和正交实验优化了提取文冠果种子油工艺，得到的最佳工艺参数为：种仁粒径为2 mm，提取温度为90℃，提取时间为10 h，料液比为1：5。

The experiment results indicate that higher phase splitting speed and extraction factor can be achieved when low-carbon alcohols such as n-butanol are used as organic solvents; by using five different N-carbobenzyloxy-L-amino acids as chiral ligands that are formated with Cu(superscript 2+) or Ni(superscript 2+), it is found that as a ligand, Z-Phe has a low extraction factor, while Z-Hyp, Z-Pro, Z-Glu, Z-Val have higher extraction factors, and among these, Z-Val has the highest distribution coefficient; pH value of extractant, when near to the PI of phenylalanine, helps to improve extraction resolution effect; temperature has no obvious effect on the resolution result.

结果表明：以低碳醇类正丁醇作有机稀释剂，所用5种N-苄氧羰基氨基酸（分别为Z-Phe、Z-Hyp、Z-Pro、Z-Glu、Z-Val）与Cu(上标 2+)或Ni(上标 2+)形成手性配位体后，以Z-Val作手性配体，萃取相pH值接近苯丙氨酸等电点时，萃取拆分效果最佳。

According to the characteristics of feature extraction, in order to enhance the speed of the operator extracting, this thesis proposes a pre-extraction algorithm. And it removes the relatively low gradient pixels, in order to not participate in the next step of the extraction, so the operator can effectively improve the extraction rate.

根据特征提取的特点，为提高算子提取速度，对提取算法进行了预处理，首先剔除梯度相对较低的像素，不参与下一步的提取，这样能有效提高算子提取速度。

The procedure is applied in two projects:(1) Shanghai Huanqiu finance center tower foundation pit dewatering, the complicated flow state of groundwater is simulated under these conditions which the aquifers deposite layer by layer, the bottom of the aquifers goes deep to 149m, the horizontal flow barrier goes deep to 34m, the extraction wells are penetrated to 55m, the filters of the extraction wells are located between 34m to 55m, and the water level in the deep foundation pit is decreased to 26m under land surface, the result of 8 pumping wells optimization project is designed.(2) The forth subway of Dong Jia-du tunnel repair foundation pit dewatering in Shanghai, the complicated flow state of groundwater is simulated under these conditions which the aquifers deposite layer by layer, the bottom of the aquifers goes deep to 144.45m, the horizontal flow barrier goes deep to 65m, the extraction wells are penetrated to 60m, the filters of the extraction wells are located between 45m to 60m, and the water level in the deep foundation pit is decreased to 42.45m under land surface, then an optimization project is designed.

最后将成果分别应用于两个工程实例中：(1)上海环球金融中心塔楼基坑降水，模拟了在多层含水层复合存在、含水层最深底板埋深达149m、基坑周围挡水连续墙埋深达34m、抽水井埋深达55m、抽水井过滤器埋深为34至55m，基坑内地下水位降至埋深达26m的情况下的地下水复杂流动状态，得出了8口抽水井优化降水方案；(2)上海地铁4号线董家渡隧道修复基坑降水，模拟了在多层含水层复合存在、含水层最深底板埋深达144.45m、基坑周围挡水连续墙埋深达65m、抽水井埋深达60m、抽水井过滤器埋深为45至60m，基坑内地下水位降至埋深达42.45m的情况下的地下水复杂流动状态，确定出了最优降水方案。

PCE-C was exrtacted by water extraction and alkali extraction technology. The results showed that the yeild of PCE-C by water extraction was lower than alkali extraction, while the hypoglycaemic activity followed reverse order.

分别采用水提和碱提两种工艺提取PCE-C，由PCE-C的得率及活性测定结果可知，水提工艺提取的PCE-C的得率略低于碱提工艺，但降血糖效果强于碱提。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。