查询词典 surface charge density

Find the surface bound charge density on the two large surfaces of the slab, and the electric field in the slab.

求平板两表面上的束缚电荷密度，以及平板中的电场。

A small television camera tube that forms a charge-density image on a photoconductive surface for subsequent electron-beam scanning.

光导摄像管在光电导表面形成电荷聚集图像的一种微小的电视摄像管，用于以后的电子光束扫描

The Polarization Vector P and the Effective Charge Density and Surface Charge.

极化向量 P ，有效电荷密度与表面电荷。

According to the values of pHPZNC, N s and structural negative charge density measured, the intrinsic surface reaction equilibrium constants, p K of 1-p K model, p K a1int and p K a2int of 2-p K model, were directly calculated to be 3.37, 2.42 and 4.32, respectively, for the meadow brown soil in northeast of China.

根据实验测定的pHPZNC， N s和结构电荷密度值直接计算得出东北草甸棕壤样品的界面反应特征平衡常数即1-p K 模型中的p K ， 2-p K 模型中p K a1int和p K a2int，分别为3.37， 2.42和4.32，与文献报道的沉积物和蒙脱土的值相吻合。

This paper uses an improved charge density method and a more realisticcathode operating mode to simulate the electron optical properties of field emission guns. In the paper a special 6-point quadrature formula has been derived to accurately calculate potentials near theemiter surface and a spherical diode model has been adopted with the cathode operating at the partial space charge limitation.

场发射枪电子光学特性的数值模拟刘志雄，沈文忠，西门纪业（北京大学电子学系，北京100871）本文利用改进的电荷密度法和更接近于实际的阴极工作模型来模拟场发射枪的电子光学性质。

The changes in surface charge density, zeta potential and the structure of electrical double layers were observed after polymer adsorption.

纳米氧化物吸附聚合物后，颗粒表面电荷密度、ζ电位和双电层结构将发生变化。

It is also found that the value of maximum energy conversion efficiency depends on the values of κa and surface charge density.

此外，最大能量转换效率随κa改变时，可发现一极值，此极值之大小，及κa值发生处，随壁面电荷密度之增加而增加。

The high cationic charge density on the nanosphere surface is created by incorporating a cationic conditioning agent into the solid hydrophobic matrix of the nanospheres, by incorporating a cationic charge 'booster' in the moisture sensitive microsphere matrix, or by using a cationic conditioning agent in the nanosphere matrix in conjunction with a cationic charge 'booster' in the microsphere matrix.

通过将阳离子带电&助剂&引入到水分敏感性微球基质中，或通过将纳米球基质中的阳离子调理剂和微球基质中的阳离子带电&助剂&联用，将阳离子调理剂引入到纳米球的疏水性基质中产生纳米球表面的高阳离子密度。

The -300V and -500V electrets were applied on 3T3 cells for 24 and 48h, respectively, then the surface charge density on 3T3 cells and the intracellular free Ca2+ concentration and the number of apoptosis were measured by means of cell electrophoresis and flow cytometry method, respectively.

利用Fluo—3/AM Ca2+指示剂，采用流式细胞术测定3T3细胞内钙离子浓度的变化和3T3细胞的凋亡量，探讨驻极体诱导3T3细胞凋亡与细胞表面电荷密度和游离钙浓度变化之间的关系。

On the other hand, the synergetic effect could be found during BS-UC adding to mixed alkanes culture. Furthermore, BS-UC could increase the hydrophobicity of cell surface and thus enhanced the ability of cell attachment to alkane. Adding BS-UC also increased the Zeta-potential of cell and medium surfaces significantly, i. e. BS-UC could decreased the negative electric charge density of their surface, so the repulsive tension between cell and medium would be weakened and the adsorption of them would be easier. The results of the test with sand filled column for investigating the cell adsorption in pore-medium showed that the residual amount of cell in the column increased with increase of adding BS-UC concentration.

此外，在以混合烃类为底物时会产生一定的协同促进效应；添加生物表面活性剂BS-UC，可以显著提高细胞表面疏水性，使得其与烃类及其它疏水表面接触能力增强；BS-UC还可以明显提高细胞及介质表面的ζ电位，使所带负电荷密度降低，从而使得两者间斥力减小而便于吸附；通过沙填充柱洗脱实验，对BS-UC增强细胞在填充介质中吸附能力进行了考察发现，随BS-UC浓度的增加，细胞在填充介质中的保留量也随之增加。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了