提取

To study the best condition for distilling the active composition of aniseed.comparing the effect of the soxhlet′s extraction and ultrasonic extraction.

研究乙醇提取八角茴香油的最佳工艺条件，比较索氏提取法与超声波提取法的效果。

METHODSUsing orthogonal design, total flavonoids in extract was as evaluation index, and ethanol concentration, extraction time, ratio of material to solvent and extration frequency were as inspecting factors to screened the optimum extraction technique, and total flavonoids content in extract was detected by spectrophotography.

方法］采用正交设计法以提取物中总黄酮含量为评价指标，以乙醇浓度、提取时间、固液比及提取次数为考察因素，筛选翻白草的最佳提取工艺。应用分光光度仪测定提取物中总黄酮的含量。

On the basis of single-factor experiments, the effects of different temperature, time and ethanol weight percent on the extraction yield of total alkaloid from Radix Stemona were investigated with a three-factor Box-Behnken centerunited design. The extraction parameters were optimized with Response Surface Methodology.

在单因素试验的基础上，选取百部总生物碱提取温度、提取时间和乙醇质量分数3个因素进行Box-Benhnken中心组合设计，利用响应面分析法对其提取工艺参数进行优化。

Extraction and Determination of Total Flavonoids from Root,Stem and Leaf of Suaeda australis

目的单因素试验了不同体积分数的乙醇、料液比、提取温度及提取时间等因素对南方碱蓬叶总黄酮提取率的影响。

According to the similarity both in aliasing /separation of signal of the ICA model and the embeding/extraction process in the watermarking system, the scrambling image is embeded into the wavelet domain with the linear supraposition.

根据ICA模型中的信号混叠/分离与数字水印嵌入/提取过程之间的相通性，以线性叠加的方式将置乱水印嵌入到图像小波域的某些系数上，检测/提取时通过ICA技术提取水印。3。

Objective: To optimize the preparation of Trimeresurus tea extraction process and the physical and chemical methods for clarification of the extract obtained in extraction technology to clarify the optimal conditions for a variety of conditions.

摘 要：目的：优化竹叶青茶制备的提取工艺并用物理及化学方法对提取液进行澄清，得到了提取澄清技术中各种条件的最优条件。

The optimum extracting condition of β-ecdysone from tussore were investigated by using the response surface methodology.

通过单因素试验，应用响应面分析法研究了温度、乙醇体积分数、料液比和时间对柞蚕中β-蜕皮激素提取的影响，探讨以乙醇为溶剂提取柞蚕中的β-蜕皮激素的最佳提取工艺条件。

In addition,during the investigation of cadmium different levels distribution in Typha angustifolia Linn,we find that:l as far as the accumulate ability of different organ in Typha angustifolia Linn are concerned,root sheath leaf.

此外对狭叶香蒲体内镉的化学形态分析表明根和叶中均以氯化钠提取态最高，但在根中以去离子水和乙醇提取态存在的镉含量总和大于氯化钠提取态，表明镉在根与叶的化学存在形态有所不同。

A method of dilute alkali to extract chondroitin sulfate from Ray Cartilage was adopted, the alkali extraction and enzyme unbinding conditions were observed.

结果：最佳提取条件的碱浓度是4%，于室温下提取18h；酶解的最佳工艺为：提取液按4×10^(-4)：1比例加胰酶，于50℃左右保温酶解2h。

4Designing and setting up the senior method of interpreting soil erosion messagebased on unstructural knowledge in database—intelligent method of interpreting soilerosion message.It includes the designing principle and how to achieve it with computer.

设计、建立了基于非结构性知识发现的土壤侵蚀信息提取方法的高级方式——智能化土壤侵蚀信息提取方法，包括智能化土壤侵蚀信息提取方法的设计原理、计算机实现过程。

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％。