查询词典 extraction

The extraction of alcohol dehydrogenase using reversed micellar system was studied.

本文报道了用反胶束体系萃取醇脱氢酶的研究结果。

Firstly, we introduce the basic theory and methods for realization of SOFM. Subsequently we improve the arithmetic and implement the feature extraction of raw data using K-L translation, select the eigenvector. Combining C-avarage and ISODATA arithmetic, classify the eigenvector, according to the methods of this dissertation, in lower layer, set nerve cell and unite or delete nerve cells in middle layer, to improve the anti-huise- and robust.

论文首先介绍了SOFM的基本原理和实现方法，接着在其基础上对具体算法进行改进，用K-L变换对原始数据进行特征提取，选取出特征变量，结合C-均值和ISODATA算法对特征变量进行预分类，按照本文中介绍的方法在底层预置神经元，在中间层对神经原进行合并和删除，加强了该网络的抗干扰性和稳定性。

Extraction, addition and deletion of files to increase the efficiency of the system.

提取，此外并删除档案，以增加系统的效率。

Methods: The amplitudes and the delitescence of OPs of flash electroretinogram in 75 type 2 diabetic patients with cataract were measured before cataract extraction and implantation of artificial lens, then postoperative ocular fudus and vision were examined, the relationship between them were analysed, and all were compared to the group of normal control.

选择75例2型糖尿病白内障患者，在白内障囊外摘除人工晶体植入术前行闪光视网膜电图振荡电位总波振幅及其子波的波幅和潜伏期测定，术后行眼底检查、矫正视力测定，比较患者术前OPs各子波振幅、潜伏期、OPs总波振幅与术后眼底所见、视力恢复之间的关系，并与对照组比较。

Demineralization for water treatment with low-silica, also used for extraction and decolorization of bioche-micalproducts.

Spherical beads 主要用于对硅含量要求不高的水的脱盐处理、生化制品的提取和脱色。

DNA extraction ; Gut microflora ; Denaturant gradient gel electrophoresis

DNA提取；肠道菌群；变性剂梯度凝胶电泳

Objective:To study the effect of thermal denaturation temperature and thermal denaturation time on extraction of SOD,and to define its optimal technique parameter.

目的：重点研究热变温度、热变时间对SOD分离提取的影响，确定最优工艺参数。

Classical solvent extraction is one important technology for the selective removal and enrichment of metal ions from aqueous solutions. However, it is not suitable for the separation of biological molecules such as protein and enzyme, because organic solvent can denature them.

溶剂萃取法是分析分离中最重要的方法之一，常用于金属的分离和富集，但对于生物大分子，加入有机溶剂会使其失活，因此经典溶剂萃取分离不适用，需研究新的体系。

It also resumptively explains the characteristics of DZM-01digital densimeter and the density assay standard for brine extraction and transportation management.

概括说明了DZM-01型数字式密度仪的特点及采输卤管理处卤水浓度化验标准，阐述了使用该仪表前后卤水浓度化验的不同方法，重点强调了使用该仪表的经济价值及经济效益。

The high quality of chicken oil could be obtained by extraction, neutralization, bleaching, deodorization and fractionation.

通过控制提油、脱酸、脱色、脱臭和分提工艺的生产参数，可制备出较高质量标准的精制鸡油。

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。