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- density gradient tube 密度梯度管
- Purification: Density Gradient Centrifugation (Sucrose &CsCl). 分离:密度梯度离心法(蔗糖&氯化铯).
- Methods LDL was separated by density gradient centrifugation. 方法密度梯度离心法分离人低密度脂蛋白;
- In dot etching, the photographic construction of individual dots to provide a proper density gradient suitable for dot size reduction. 中义在网点修整中，个别的网点结构依网点大小提供适当的浓度变化。
- A significant number of Ad-p27kip1 and Ad-LacZ were acquired by CsCl density gradient separation and purification. 将Ad-p27kip1、Ad-LacZ转染293细胞进行扩增、CsCl密度梯度离心、纯化，以获得大量Ad-p27kip1和Ad-LacZ。
- The relationship between the density gradient and the strength of OSCP, and the structure of OSCP are also discussed. 另外,对断面密度分布与板子强度之间的关系、复合定向刨花板结构也作了研究。
- Conclusion:High purity of MSC can be obtained by density gradient centrifugation. 结论:密度梯度离心法分离获得的人胚胎骨髓间充质干细胞纯度高。
- The anomaly element combination is Au-Cu-Ag-Pb-Zn, anomaly element intussusception are good and the tertiary density gradient of elements shows well. 在水系沉积物测量异常查证中，发现了吉拉土壤地球化学异常。
- Methods Peripheral blood monocytes were obtained from PVS patients and normal control group by density gradient centrifugation. 方法 应用密度梯度离心法将实验组即PVS病人及正常对照组的外周血单核细胞分离出来 ,然后应用酶联免疫法检测外周血单核细胞受IFN r或LPS刺激后 ,其所表达的HLA DR的变化水平。
- The articleintroduced borehole inclinometer's composition, operating principle , inbuilt technique and measuring technique of gradient tube,using it in analyzing th... 介绍了钻孔测斜仪的组成、工作原理,测斜管的埋设技术和监测技术,并应用钻孔测斜仪对工程实例进行研究分析。
- The karyotes were separated by density gradient centrifugation, and the stroma cells of the bone marrow were gained adherent separation method. 选择雄性6周龄SD大鼠4只,抽取大鼠股骨骨髓,使用密度梯度离心分离有核细胞,贴壁分离法获取骨髓基质细胞,以2×104/cm2的密度接种进行细胞传代与分组实验。
- Methods The sample of blood from 45 cases opf SLE and 30 healthy con-trois were measured by density gradient centrifugal assay. 方法采用密度梯度离心法检测45例SLE患者和30例正常人的血液标本。
- Methods Rat BM-MNCs were isolated by centrifugation through a Histopaque density gradient and cultured for four weeks in itro. 方法从大鼠胫骨及股骨采集骨髓,密度梯度离心法分离出骨髓单个核细胞进行体外培养,并连续收集4周培养上清液。
- A general mean shift procedure is defined by nonparametric estimation of density gradient, and the steps and convergency of the algorithm are proposed. 首先根据密度函数的非参数估计推导出均值漂移公式的一般形式，说明了均值漂移迭代算法的步骤及收效性；
- In this study, the purified and concentrated oocysts were isolated from the faecal samples by density gradient centrifugation. 本研究以不同密度的蔗糖溶液为介质，按比例配制两种密度的分离液，对采自广东省的奶牛粪便进行分离纯化，得到了较纯净的牛源环孢子虫卵囊；
- Methods Samples of peripheral blood in 64 women of 8-40 gestational weeks were collected to enrich the fetal nucleated red blood cells by density gradient centrifugation. 方法对64例孕8-40周孕妇外周血进行密度梯度离心法，富集胎儿细胞，并经显微镜下观察计数各种细胞所占百分比。
- Methods Using different techniques of collagenase digestion and discontinued density gradient centrifugation, the adult swine and rat islets were prepared. 方法采用不同的胶原酶消化法及不连续密度梯度纯化法。
- For example, some ellipticals have a "core," which is a central region where the density gradient is much shallower than the steep power law observed at large radii. 例如，一些椭圆星系有一个核，那儿的密度坡度比在大范围内观测到的能量坡度小得多。
- The articleintroduced borehole inclinometer's composition, operating principle, inbuilt technique and measuring technique of gradient tube, using it in analyzing the project example. 介绍了钻孔测斜仪的组成、工作原理，测斜管的埋设技术和监测技术，并应用钻孔测斜仪对工程实例进行研究分析。
