查询词典 diffusion cosettes

The annihilation of the octahedron voids at the tips of FPDs was divided two processes:(1) The oxide on the void was removed by the out-diffusion of Oi in the shallow region , especially the Oi aroud the void and by the entry of the interstitial Si atomics .

FPDs端部八面体空洞的消失分为两个阶段：覆盖在空洞各个内壁上的氧化膜由于高温下硅片表面区域的间隙氧原子，尤其是空洞型缺陷周围的间隙氧原子的外扩散及自间隙硅原子的进入，而逐渐变薄直至最终消失。

This thesis is concerned with the existence of global attractor forreaction diffusion equation with delays.

本文研究含时滞的反应扩散方程全局吸引子存在性的问题。

Autoradiography results confirmed the extravasation of radiolabeled SCKs in vascularized areas of the tumor, whereas no diffusion was observed in necrotic regions.

放射自显影法的结果证实，放射性标记的SCK在肿瘤血管化区域溢出，而坏死区域观察不到扩散现象。

Local discontinuous Galerkin method for convection-dominated diffusion problems with periodic boundary conditions is constructed. To deal with the derivative of second order, an auxiliary variable is introduced. The stability and error estimations are presented simultaneously.

针对具有周期性边界条件对流占优的扩散问题中的二阶导数，引入辅助变量，构造了局部间断Galerkin方法，并给出了方法的稳定性结果和误差估计式。

Objective To value diffusion-weighted imaging and ADC value measurement of benign and malignant axillary lymph node identification value.

目的：评价扩散加权成像及ADC值的测量对腋窝良恶性淋巴结鉴别的价值。

Vacuum volatilization; separation process; azeotrope; diffusion coefficient; evaporation heat

真空挥发；分离过程；共沸物；扩散系数；蒸发热

Douglas and Russell first presented the idea of characteristics in[13],in whichthe diffusion term is included in the derivative of characteristic direction of the solu-tion and the backward difference quotient along the time axis was replaced by it alongcharacteristic direction.

Douglas，Russell[13]最先提出了特征法的思想，其主要特点是将模型方程的对流项隐含在解沿特征方向的导数之中，以沿特征方向的向后差商逼近取代通常方法中沿时间方向的向后差商逼近。

The control volume integration was applied to deduce the discrete expressions of the convection-diffusion equations. The staggered grid and SIMPLE algorithm were introduced to deal with coupling between pressure and velocity, and then the numerical computation expressions of such variables as fluid flow velocity and pressure were deduced. Using the backward difference method and incremental theory to discretize the governing equations for fields of chemical reaction, material structure and chemorheology, the numerical computation expressions of variables such as the monomer conversion, average molecular weight and fluid viscosity were constructed.

应用控制容积积分法导出了对流—扩散方程的离散表达式，引入交错网格技术与SIMPLE算法，实现了耦合的压力场与速度场的分离式求解，推导得到了流体的流动速度、压力等物理量的数值计算式；采用向后差分方法和增量方法，实现了化学反应场、材料结构场、化学流变场控制方程的离散，获得了反应转化率、聚合物平均相对分子质量、流体黏度等物理量的数值计算式。

Methods: Paper diffusion method and animal test were used to observe experimentally the bacteriostatic efficacy and toxicity of Aloe extract.

采用纸片扩散法和动物试验对芦荟抑菌效果和毒性进行观察。

It may be attributed to the segregated Ge acting as a diffusion barrier layer at the interface of 〓.

这可归结为〓界面的富Ge层充当了Co向Si〓Ge〓扩散的阻挡层，导致Co的有效扩散系数减小，降低了反应速率。

Don't listen to their haver, nothing of that sort.

别听他们胡说八道，根本就没那回事。

But bank's shares trade below their book value, suggesting that investors are skeptical.

但是，银行股票以低于账面价值的价格交易，这一点反应了投资者的怀疑。