分离密度

采用扫描电镜（SEM）研究了稀释剂（矿物油）粘度对热诱导相分离高密度聚乙烯（HDPE）微孔膜微孔结构的影响。

The effect of diluent ( mineral oil ) viscosity on the micropore structure of HDPE microporous film via thermally-induced phase separation was studied with SEM .

方法：采用密度梯度超速离心法分离不同密度LDL亚组份；分析冠心病（CHD）患者和健康人群LDL亚组份分布特征。

Methods : LDL subfractions were isolated directed from plasma by non equilibrium density gradiant centrifugation , and distribution of LDL subfractions in CHD patients were analyzed .

用改良的葡聚糖、Mg~（++）法沉淀分离高密度脂蛋白（HDL），用新合成的分离剂Ⅱ号漂浮极低密度脂蛋白（VLDL）。

HDL lipoproteins were separated by a modification of the methed of dextran sulfate-Mg + + . VLDL lipoproteins were floated by a new synthetic Separation - I .

方法：1.采用Percoll分离液密度梯度分离法，体外分离及纯化SD大鼠MSCs，经过形态学特征、表面标志物表达及多向分化潜能等多方面鉴定所得细胞。

S-D rats bone marrow MSCs could be separated and purified in vitro by the Percoll density gradient separation , . Morphology characteristics , cell surface markers and the potency of multi-directional differentiation were applied to identify the cells .

分离：密度梯度离心法（蔗糖&氯化铯）。

Purification : Density Gradient Centrifugation ( Sucrose & CsCl ) .

康滇地区重力场分离、密度反演与地壳构造

Gravity field separation , density inversion and crustal tectonics in Kang-Dian region

这样的分离导致密度波的旋涡模式的不稳定性。

Such divorce makes the spiral mode of density waves in a disk-shaped galaxy unstable ;

对蔬菜绿叶通过组织匀浆，差速离心分离，密度梯度离心分离、纯化、提取叶绿体。

The green leaves of vegetables through tissue homogenate , differential centrifugation separation , density gradient centrifugation purify sample of chloroplast .

指标检测：倒置显微镜下，每天观察贴壁分离、密度梯度离心不同培养条件下细胞的生长情况和活体形态特征。

Index detection : Growth condition and morphologic feature were observed in different culture conditions of adherence separation and density gradient centrifugation under inverted microscope .

【方法】取健康成人外周静脉血，分别及联合应用紫外线、高温和臭氧进行诱导，采用淋巴细胞分离液密度梯度离心分离外周血淋巴细胞。

【 Methods 】 After inducing peripheral blood of healthy adults through ultraviolet light , hyperthermia , ozone , respectively and jointly , we separated peripheral blood lymphocytes by means of lymphocyte separation medium density gradient centrifugation .

推导了基于NASA标准解体模型的碎片分离速度概率密度函数，建立了计算航天器与单颗碎片碰撞概率的时间积分算法。

Space debris delta-velocity probability density function was deduced by NASA 's standard breakup model , and time integral algorithm of collision probability between spacecraft and any debris was built .

结论优化大鼠周龄、分离液的密度、细胞培养方法有助于获得多向分化潜能保持良好的MSCs。

Conclusion The optimization of rats ' age , the density of Percoll , the methods of cell cultivation are conducing to obtaining a pure population of MSCs with good differential activity .

目的：从血浆中分离获得低密度脂蛋白（LDL）和进行99m锝（99mTc）标记，为LDL作为抗癌靶向载体研究作准备。

OBJECTIVE : To purify low density lipoprotein ( LDL ) from human plasma and label LDL used 99m Technetium ( 99m Tc ) for the advanced research of LDL as a carrier targeting antitumor drug to cancer cells .

浮选是从液体中分离出低密度固体物或液态颗粒。

Flotation is a process for separating low density solids or liquid particles from a liquid phase .

目前国外采用较多的有荧光激活细胞分选法、磁活化细胞分选法、免疫磁珠分离法、密度梯度离心法。

Various methods of enrichment exit : fluorescent activated cell sorting , magnetic-activated cell sorting , immunomagnetic beads , density gradient .

方法用胶原酶法分离、Ficoll400密度梯度离心法纯化胰岛。

Methods : Islets were isolated using digestion by ductal injection of collagenase , and purified by centrifugation of Ficoll density gradient .

采用淋巴细胞分离液按密度梯度离心法分离成人骨髓，反复贴壁法纯化扩增骨髓基质细胞。

Human marrow stromal cells ( hMSCs ) were isolated from human bone marrow by density gradient centrifugation method using lymphocyte isolation liquid .

用单向拉伸、溶胶凝胶分离、交联密度测试、动态力学分析等实验手段，研究了醇胺类助剂在铝粉/丁羟复合物中的作用。

The behaving of ethanolamine additives in Al / HTPB composites has been investigated utilizing the means of tensile testing , chemical analysis , dynamic mechanical measurements , etc.

科斯特纳知道，混合物经过离心机的快速转动可以分离开来，密度大的物质会向外移动，密度小的则朝着机器的中心位置移动。

Costner knew that a centrifuge can help separate mixed substances by spinning them . A denser material will move outward , while a lighter one will migrate toward the machine 's center .

以猪脑为材料，经匀浆、差速离心、蔗糖密度梯度离心分离突触体.Percoll密度梯度离心分离牛精子初探

Synaptosomes were isolated from pig brain by homogenization , differential centrifugation and sucrose gradient centrifugation . Study on Bull Sperm Separation by Percoll Density with Centrifuge

人参的分析&Ⅲ.人参单体皂甙的提取分离与薄层光密度法测定

Analysis of ginseng ⅲ . isolation and determination of ginseng saponins

松质骨源性人成骨细胞的分离培养和细胞密度效应

Isolation and culture of human osteoblast from trabecular bone and the cell density effect

正态检验表明：分离群体色素腺体密度的分布为平阔曲线。

The normal test showed that the distribution of pigment gland was a flat curve in segregation population .

旋流分离槽是分离密度小于凝固液的凝胶珠的设备。

The cyclone separator is the equipment for separating the gel beans which are lower in density than the solidifying liquid .

方法采用肝胰管内灌注胶原酶消化分离胰岛及Ficoll400密度梯度离心纯化。

Methods The islets were isolated from rat pancreas by hepatopancreatic duct perfusing with collagenase and purified with Ficoll 400 discontinuous density gradient centrifugation .

密度梯度离心法：Ficoll分离液组选用的Ficoll分离液密度为1.077；

Density gradient centrifugation : 1.077 Ficoll was used in the Ficoll separating medium group ;