扩散

Determination of Rhenium in Raffinate and Residue from Synthesis of Methyltrioxo rhenium by ICP-AES

在电子探针测量的基础上，根据扩散理论和Ir-Re相图数据，建立了一个全新的Ir/Re两相扩散模型。

Interdiffusion problem of iridium/ rhenium was studied during preparation of iridium/ rhenium thruster.

在电子探针测量的基础上，根据扩散理论和Ir-Re相图数据，建立了一个全新的Ir/Re两相扩散模型。

A new model for self-diffusion coefficients was proposed based on both the concepts of molecular free volume and activation energy.

在考虑自由体积和局部临界扩散势能的基础上，提出一种新的计算自扩散系数模型，并给出新模型中各个因子物理含义。

Transport properties including the coefficients of self-diffusion, viscosities, and conductivities were also studied and compared.

系统地研究并比较了离子液体的扩散性质，包括体系阴阳离子的自扩散系数、粘度及电导率。

Yet, in the temperature range of 700-750℃, the deformation activation energies were much higher than the self-diffusion activation energy of grain boundary.

在850℃变形激活能与晶界自扩散激活能十分相近，表明晶界扩散控制的晶界滑动是超塑性变形的主要机制。

The self-diffusion coefficients of supercritical carbon dioxide and infinite dilute diffusion coefficients of methanol and ethanol in supercritical carbon dioxide were investigated by molecular dynamics simulation.

采用分子动力学模拟的方法对超临界二氧化碳的自扩散系数及甲醇和乙醇在超临界二氧化破中的无限稀释扩散系数进行了模拟计算。

The one is how the long-range order of atoms can be restored when atomic diffusion takes place, and the other is how the theoretical expressions in their present form, more than one self-diffusion coefficient parameter, can be applied to experimental results directly.

一是如何正确理解原子的热扩散运动与合金中原子有序排列之间的矛盾；二是能否将扩散系数以外的其它理论参量与原子跳跃迁移的相关实验测量联系起来。

The self-diffusion coefficients and diffusion pathways of hexane, as well as the mobility of the frameworks were investigated, as a function of both temperature and loading.

本文重点研究了温度和分子数对己烷自扩散系数、扩散机理，以及骨架柔性的影响。

At the temperature range of 800～850℃, the deformation activation energy was very close to self-diffusion activation energy of grain boundary, which shows the main deformation mechanism is grain boundary sliding controlled by grain boundary diffusion.

在850℃变形激活能与晶界自扩散激活能十分相近，表明晶界扩散控制的晶界滑动是超塑性变形的主要机制。

Self-diffusion coefficient ; Infinite dilute diffusion coefficient ; Supercritical fluid ; Molecular dynamics ; Molecular simulation

自扩散系数；无限稀释扩散系数；超临界流体；分子动力学；分子模拟

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。