查询词典 extraction

Microwave-assisted extraction was applied for polysaccharide extraction from Morus alba L.. Factors and levels were optimized by single factor test. Box-Behnken design was used to 3-factors and 3-levels test. The optimal process conditions were obtained by regression analysis of response surface methodology.

利用微波辅助技术进行桑叶多糖提取，通过单因素实验确定因素与水平，应用Box-Behnken设计3因素3水平的试验，依据回归分析确定最优的提取工艺条件。

Gabor-ring is often used in texture feature extraction, but it is based on the assumption that texture is narrowband signal and can not applied to most actual textured images that have more than one center frequency in power spectrum. To overcome the limitation of existing method, an improved method is proposed. According to this method, Gabor filters are constructed in accordance with the spectrum feature vector of texture, and a relaxation parameter is used to determine the effect of difference filters so as to integrate the frequencies and phases into the process of extraction.

Gabor环（即在频率域成环形分布的Gabor滤波器组）常被用于提取图像纹理特征，但它是以"纹理是窄带信号"为基础的，实际的纹理图像并不能很好地满足"窄带信号"的假设，用一个中心频率来描述一种纹理对能量集中在多个频率点的纹理图像往往不能取得理想的效果，而根据频谱特征值向量构造Gabor环的改进方法，通过松弛因子的加入改变不同滤波器的作用强度，综合考虑了多频率多相位对纹理特征提取的影响。

The paper,according to the analyzing of lead dross reverberator dust,put forward the new technics indium distilling by sulfuric acid leach ing,P204 extraction,sulfuric acid washing,hydrochloric acid reverse extraction,zinc replacement,smelting,electrolysis,casting etc.

研究分析了铅浮渣反射炉烟尘的性质和特点，提出了二段硫酸浸出、P204萃取、硫酸洗涤、盐酸反萃、锌板置换、压团熔铸、电解铸型的提铟新工艺，并进行了全流程的试验研究，明确了各工序的工艺技术条件。

Tseng resource, The extraction, purification and determination of saponins in Ilex Kudingcha C.J.Tseng were firstly researched, a RP-HPLC method was established for determination the content of oleanolic acid and ursolic acid in Ilex Kudingcha CJTseng simultaneously. At the same time, the technical parameters of sapogenin extraction sapogenin and the solvent system of HPTLC for separation the sapogenins was seeked. The main results are as follows:1. A spectrophotometric method was established for quantitative determination the total content of saponins in Ilex Kudingcha C.J.

为了推进苦丁茶化学成分生物活性研究，挖掘该植物的药用价值和为其资源的综合开发应用提供科学依据，本文研究苦丁茶皂苷的检测方法、探讨苦丁茶皂苷的提取纯化条件、建立HPLC法同时检测熊果酸和齐墩果酸的含量、摸索苦丁茶皂苷元的提取工艺参数并确定苦丁茶皂苷元薄层层析的溶剂体系。

The company now has supercritical fluid extraction, macroporous resin adsorption, membrane technology, bio-engineering techniques, such as natural products of international standard extraction techniques and the development of 20 sea buckthorn patents and proprietary technology.

公司现拥有超临界萃取、大孔树脂吸附技术、膜技术、生物工程技术等国际水平的天然产物提取技术和20项沙棘开发的专利和专有技术。

Objective: To study the extraction process of the total triterpenes from Common Selfheal with ultrasonic wave extraction.

目的：探讨夏枯草中总三萜类成分的提取工艺。

As an important chemical analysis method, sequential extraction is the main link in analysis of heavy metals in soils, but adopting single extraction procedure for different types of soil and different forms of heavy metals makes it very difficult to compare the results.

连续提取法作为一种重要的化学分析方法，是土壤中重金属元素形态分析的主要环节，但同一种提取法对于不同的土壤类型及同类土壤中不同重金属形态的提取效果差异很大。

It is also used to generate SPICE stimulus waveforms for these special sequential logic circuits quickly according to user's logic parameter specifications, as can speed up the logic parameter extraction process and guarantee a proper SPICE simulation waveform for the logic extraction.

提出了对具有反馈信息的时序逻辑电路进行逻辑参数提取时用于SPICE模拟的激励波形自动生成方法，该方法能根据用户指定的要提取的时延参数要求，很快产生这种时序逻辑电路的模拟激励波形，从而可以加快逻辑参数的提取过程，保证参数提取激励波形的正确性。

The extraction and decoloration technology of water insoluble dietary fiber from residue of shaddock peel after the extraction of pectin were studied.

研究了从柚皮提取完果胶的残渣中提取水不溶性膳食纤维的工艺，同时对IDF的脱色工艺也进行了研究。

FRAP method measured antioxidant capacity of vitamin C (as FeSO4 equivalents μg /μg) of 4.14, reflux extraction method extracted to the untreated mung bean shells, rich green bean shell GABA treatment, selenium-rich bean shell three kinds of material dealing with anti-oxidant capacities of 0.73,0.69,0.80, three peeled mung bean products are not detected because of the content extraction.

FRAP法所测维生素C抗氧化能力(以FeSO4当量计μg/μg)为4.14，回流提取法所提取到的未处理过绿豆壳、富GABA处理绿豆壳、富硒处理绿豆壳三种物质抗氧化能力分别为0.73、0.69、0.80，三种去壳绿豆产品均因所提取含量不足以检测。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。