扩散现象

用分子动力学方法研究Ag（001）表面吸附原子的自扩散现象

A molecular dynamics study of self diffusion on ag ( 100 ) surface

吸附原子在Ag，Pt，Au（110）表面上的自扩散现象

Self diffusion of adatoms on ag , pt , au ( 110 ) surfaces

大气扩散现象的说明仍然是准经验性的和统计性的。

The description of atmospheric dispersion phenomena remains quasi-empirical and statistical .

扩散现象也如此，混合之后不能自发的分开。

Diffusing phenomena also so , after mix cannot spontaneous separating .

Si中掺杂原子的瞬间增强扩散现象及抑制方法

Study of Transient Enhanced Dopant Diffusion in Silicon and Proposed Limiting Methods

金属fcc（100）表面吸附原子的自扩散现象

Self-diffusion of adatoms on metal fcc ( 100 ) surfaces

研究了快速凝固钎料中Cu元素在铝合金基体中的扩散现象和机制。

Diffusion and mechanism of element Cu in the matrix of aluminum alloy were revealed when rapid-solidifying Al-Cu solder was used for soldering .

SG方法内在地具有侧风扩散现象。

The crosswind diffusion is inherent in the SG scheme .

这是由于电沉积In薄膜较为疏松，Ga的原子尺寸较小，容易发生扩散现象。

It was because the In film is loose and the size of the Ga atom is small , the diffusion of the Ga is easy .

该法能有效地抑制导致浅结器件失效的Al-Si互扩散现象，从而具有良好的结特性。

Using this method , Al-Si interdiffusion phenomenon which causes the failure for shallow junction device can be restricted effectively .

说明该生长方法可获得电池隧道结中高掺杂水平的PN结，并且能够达到抑制掺杂杂质互扩散现象的设计要求。

It is proved that by the method , the PN junction can be obtained of high doping level and doping diffusion , stopped .

用SEM研究了采用粉末冶金法合成的Fe／C60复合材料低温烧结的扩散现象。

The diffusion phenomena of Fe / C60 composites , which were fabricated by the PM method and sintered at lower temperature , were studied by SEM observation .

本文对处理自由表面的VOF法进行了改进，减轻了由“施主-受主”法导致的假扩散现象。

The VOF method is modified to lighten artificial diffusing which results from " Donor-Acceptor " method .

S-G方法的侧风扩散现象分析

Analysis of the Phenomenon of the Crosswind Diffusion Inherent in the S-G Scheme

本文发展了随机颗粒轨道模型并用来预测MSW在回转窑内轴向传输和扩散现象，即停留时间分布。

A novel particulate trajectory model ( PTM ) is developed to simulate axial transport and dispersion , namely detailed residence time distribution , of MSW in a rotary kiln .

方法：对5例行SPR患者进行术中电刺激阈值及行为反应观察，对阈值较低、有反应扩散现象的神经小束予以切除。

Methods : To observe the electrical threshold of excitation and behavior reaction of5 cases during the SPR resect the nerve fasciculus of lower threshold and reacted spreading phenomenon .

我们先以这类扩散现象为例，简单说明一下Cahn-Hilliard型方程的物理背景。

Hilliard studied the diffusion phenomena in two different phases and came up with this type of equation .

采用未反应核模型来研究有菌和无菌发电浸出过程中化学反应和扩散现象、采用SEM研究同时发电浸出中A.实验结果较好地拟合化学反应控制阶段的未反应芯收缩模型。

The unreacted shrinking core model was used for describing the reaction-relative and diffusion-relative phenomena presented in the process of the electro-generative leaching with and without bacteria , which is considered to be diffusion control . SEM was used to study the effect of A.

本文研究了两类带功能反应项的具有扩散现象的捕食模型，其功能反应函数分别为Holling-II和Beddington-DeAngelis型。

In this thesis , we study two kinds of predator-prey models with Holling-II and Beddington-DeAngelis functional response .

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。

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

另外，衬瓷层和45钢基体的界面处，衬瓷层中的组元和钢基体中的铁发生了化学反应，形成了新相FeAl2O4，同时在界面区域存在元素的互扩散现象。

Additionally , a new phase FeAl_2O_4 was observed in the interface between gradient composite layer and 45 steel , which indicated there exists chemical reaction between the element in ceramic and Fe , at the same time , mutual diffusion between them .

本文建立了用于计算立式钟罩CVD反应器内对流扩散现象的流体动力学和热输运方程，并用Galerkin有限元法做了计算（计算过程中考虑了热浮力对流动的影响）。

The equation of fluid dynamics and heat transfer is developed to calculate complex convection and diffusion phenomena in a vertical bell jar CVD reactor . The flow and heat transfer problem defined by the equation for stream , vortex and temperature is solved numerically by Galerkin finite elements method .

本文系统地分析了S-G方法内在的侧风扩散现象，给出了它的应用条件和适用范围，为S-G方法的应用提供了依据。

This paper systematically analyzes the phenomenon of the crosswind effect inherent in the S-G scheme , and presents its applied conditions and fit ranges , which provides for the application of the S-G scheme .

室内试验可以直接观测到土体劈裂和水泥浆扩散现象。

Fractures and cement penetration phenomenon were observed in laboratory test .

反常扩散现象在自然界和社会系统中广泛存在。

Anomalous diffusion happens often in nature and society systems .

眼静息电位向眼周的扩散现象和临床应用

Diffusing phenomenon and clinical application of eye 's standing potential

三个模型较好地解释了我国目前违法广告扩散现象。

These three models can better explain the phenomena of unfair advertisements diffusion .

社会经济领域中一类扩散现象的数学模型

Mathematical model of a diffusion phenomenon in social-economic region

最后对氢的外扩散现象提出了几种可能的简单解释。

Some possible interpretations are presented for out-diffusion of hydrogen in the films .

溶剂驱油中的扩散现象研究

The Study of Diffusion Phenomenon in Solvent Displacement