查询词典 endothelial layer

Vascular endothelial growth factor is endothelial cell specific mitosis, which can induce the fissiparism and move of endothelial cells.

在前列腺组织中，VEGF表达受雄激素的调节，而在阴茎勃起组织，迄今尚无类似的研究。

Objective To investigate the alteration of vascular endothelial cells and circulation endothelial cells damage in acute-phase Patients with Coronary Heart DiseasConstruct technology platform of vascular endothelial cells damage, in order to provide new theory evidence and laboratory indicatrix of earlier-phase prophylaxis and diagnosis for nosogenesis、development、turnover of Coronary Heart Disease Methods 65 acute-phase Patients with Coronary Heart Disease of preparing for operation of heart...

目的探讨冠心病患者急性期血管内皮细胞、循环内皮细胞损伤的特点，构建检测内皮细胞损伤的技术平台，为冠心病的发生、发展、转归，甚至早期预防及诊断提供新的理论依据和实验室指标。

Endothelial progenitor cells are precursor cell of endothelial cells, and involved in the vascular endothelial cells repair process.

内皮祖细胞是内皮细胞的前体细胞，参与了血管内皮细胞修复过程。

Different measures of potentill anserine extract has different effects on endothelial cell of capillary vessel of small rats' alveolar wall. Endothelial cell of capillary vessel of alveolar wall has hyperplasia and hypertrophy in different degrees; it leads to permeability of capillary vessel increasing in different extent. With the situation, different concentration of potentill anserine extract promotes vascular endothelial cell factor of small rat's pulmonary tissue secretion.

不同剂量的蕨麻提取物对小鼠肺泡壁毛细血管内皮细胞的影响不同，肺泡壁毛细血管内皮细胞呈不同程度的增生肥大导致毛细血管通透性呈现不同程度的增加，表明可能和不同浓度的蕨麻提取物促进小鼠肺组织某些血管内皮细胞因子（Vascular endothelial cell factor VECF ）的分泌功能有关。

They stimulate endothelial cell proliferation and the growth of new blood ve els by releasing endothelial mitoge and chemotactic factors, such as bFGF and vascular endothelial growth factor .

它们能刺激内皮细胞的增殖和血管的生长，通过释放内皮有丝分裂和化学趋化因子，例如bFGF和血管内皮生长因子。

In the recent 20 years,evidences have proved that endothelial cell barrier function and vascular permeability depend on the endothelial morphologic changes and the formation of intercellular gap. It is thought that change of endothelial contractility is the last congenerous pathway of different signal transduction in permeability changes.

近二十多年来从细胞学水平的研究已证明，内皮细胞形态变化和细胞间缝隙的形成决定了内皮细胞的屏障功能和血管的通透性，内皮细胞收缩性的改变被认为是不同的信号机制导致通透性变化的最后共同通路。

Methods: The human endothelial cells of umbilical vein and rat microvascular endothelial cells were obtained by methods of perfusion/digestion and histiocytic attachment using typeⅠcollagenase (0.1%). The morphologic characteristics of endothelial cells were observed under inverted microscope.

采用0.1%Ⅰ型胶原酶消化灌注法和组织块贴壁法分别获得人脐静脉内皮细胞和大鼠微血管内皮细胞，每天在倒置相差显微镜下进行观察，并用免疫荧光法分别进行鉴定。

Von willebrand factor is one glycosylated protein synthesized by blood vessel endothelial cell.Thrombomodulin is one glucoprotein which exists in blood vessel endothelial cell surface.Both of their levels are increased obviously when endotheliocyte is damaged,so they could be considered as the molecular markers reflecting endothelial injury.

血管性假血友病因子是血管内皮细胞合成的一种糖基化蛋白，血栓调节蛋白是位于血管内皮细胞表面的糖蛋白，内皮细胞损伤时，二者水平均显著升高，因此它们作为反映内皮损伤的分子标记物。

In addition, some modifications on several computational methods are also presented. Using LMTO method the electronic structure of several systems are studied, and some results are obtained. They are: The ideal Nb (100) surface has three surface states, the multi-layer relaxed surface has two surface states. The surface energy of the ideal surface is higher than that of the relaxed surface, that means that the multi-layer relaxed surface is more stable than the former one, which supports the LEED results. The mono-layer relaxed Ag (111) surface is the most stable one among several" stable surface models"presented by several researchers. The surface energy of Ag (111) surface is higher than that of surface Ag (001), which supports some experimental results such as different reaction rate at different surface orientations for the same material. The surafce states of Si (111) surface not only locate near the Fermi level, but also in the valence band, which agrees well with Cohen's conclusion. Si (111)-H is an effective model for analysing the surface states and H adsorbed on the back surface is a good method for improving the convincingness of the results obtained on thinner slab models. The surface stability depends on three different kinds of MoSi〓(001) surfaces, the surface with mono-layer Si is the most stable one, and the surface with Mo at the first layer is the most unstable one among them. These are consistant with the Kemoda's experimental results. The valence bands of clean or K adsorbed CdTe (111) surface agrees well with the synchrotron radiation studies. The surface of CdTe (111) consists of four kinds of surface models which show different surface electronic structures and different surface structure stabilities. The conclusion agrees well with Wu's experimental work. The different absorbed alkali metals on the CdTe (111) surface give different adsorption characteristics which have relations not only with the valence electrons, but also with the core ones of the alkali metals. The electonic structures of Si-C alloys are different from that of Si-Ge alloys, and the energy band gaps of Si-C alloys do not increase linearly with Carbon concentration, our conclusion supports Alexander's results, but conflicts with Soref's one.

现分述如下： LMTO方法及其应用方面：1）通过对Nb（100）表面电子态分析发现清洁理想表面有三个表面态，多层弛豫表面有两个表面态；表面能大小说明多层弛豫表面更稳定，支持了LEED结果。2）通过对采用不同方法获得的几种不同Ag（111）表面稳定结构的表面能计算分析，给出了单层弛豫表面为Ag（111）表面的最稳定结构；从Ag（111）单层弛豫表面和Ag（001）表面的表面能比较，发现了Ag（001）表面表面能要比Ag（111）小的，表明了同种物质不同表面取向将表现出不同物理、化学性质，这是与实验中得出的结论是吻合的，3）通过对Si（111）表面态分析，不仅发现了Si（111）表面不仅具有居于费米能级附近的悬挂键所对应的表面态，而且还有很多表面态位于价带能量范围内，与Cohen等结果一致，H饱和slab模型背表面相当于增加了slab层的厚度，是一有效的变相增加slab层厚的方法，弛豫表面较清洁理想表面价带谱们低能端的少许移动，预示着总能降低，说明弛豫表面较清洁理想表面稳定。4）MoSi〓具有三种表面，从费米能级上态密度值大小得到单层Si表面最稳定，Mo原子为表层原子的表面最不稳定，双层Si原子表面居中的结论，这与Kemoda等人实验结果是一致的。5）通过对CdTe（111）表面表面电子态、表面结构稳定性及表面H、碱金属吸附的电子结构系列研究，不仅得出了CdTe（111）清洁及碱金属K吸附价带谱与同步辐射光电子谱相吻合的结果，而且发现了CdTe（111）表面具有四类不同原子近邻特征，表现出四类不同的表面结构及电子结构特征：不同表面态分布、不同的表面结构稳定性（表层原子与次层原子成三键有一悬挂键的表面要比表层原子与次层原子成一键有三悬挂键稳定（与Wu等人实验结果一致））、不同的H吸附特性。

The main results of the investigation are as following:(1) Some important criteria for the design of multi-layer structure are acquired: the ratio of the layer thickness to the contact diameter should be controlled to a value about 0.8; increasing the number of the gradient layers and elasticity modulus of the top layer would benefit to the yield strength and the stress status at the interface.（2）By means of molecular dynamics simulations for a indentation and sliding process, it is discovered that dislocations of 45 direction to the surface occur in the surfaces layer, which is correspond to the direction of the plastic flows observed in the macroscopic continuous medium. The irreversible deformation caused by the dislocation and the atom piles at the surface are responsible for the irreversibility of the force response. They are also the main factors for the friction generation. The temperature and the indentation velocity have significant effects on the deformation behaviors of the material of the surface layer. The yield strength would increase obviously if the indentation velocity is greater than 10 m/s.（3）A method to evaluate the fracture toughness of coating by estimating the crack-density functionβof a Wicker''s indentation was proposed. Meanwhile a new surface treatment technology was developed using non-equilibrium plasma.（4）A MD-FE hybrid method and corresponding software was developed to analysis the tribological behaviors for multiplayer system.

研究主要内容和结果有：（1）得到指导梯度膜设计的几个准则：控制膜层厚度与接触半径比在0.8左右为宜；适当增加梯度层层数和顶层弹性模量，有利于提高抗屈服能力和改善界面处的应力状态；（2）通过对嵌入和滑动摩擦过程的分子动力学模拟，发现表层产生一个与宏观连续介质的塑性流动方向观测一致的45 方向位错；位错造成的不可逆变形和表面的原子堆积，是力的响应不可逆性的原因，也是构成摩擦力的主要因素；温度和嵌入速度对材料变形特性有显著的影响，当嵌入速度大于10 m/s时，屈服强度明显增加；（3）提出压痕裂纹密度系数β半定量判定膜层断裂韧性的方法；并开发出表面强化新工艺；（4）开发出分析表面摩擦学特性的MD-FE复合模拟方法和相应模拟软件。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。