Oxidation of magnetite grains is divided into tow stages, according to temperature, and iron ion diffuses at lower temperature and diffusion amount of oxygenic ion increases at higher temperature.
磁铁矿颗粒氧化按温度划分为两段，在较低温度下主要是铁离子扩散，较高温度下氧离子扩散的扩散能力增强。
The calculation of chloride diffusion coefficient in prestressed concrete structures eroded by chloride ion is discussed.
针对氯盐侵蚀的预应力混凝土结构，讨论了氯离子扩散系数的计算。
Based on experiments, the diffusion mechanism and influential factor of selective uranium separation and acids recovery with ion exchange diffusion dialysis membranes are introduced.
通过初步试验，探讨了用离子交换扩散渗析膜有选择性地回收酸分离铀的机理及影响因素。
The determination of material structure, performance parameters and membrane resistance, membrane diffusion coefficient of the F4112 ion exchange membrane were introduced.
介绍了F4112离子交换膜的材料结构、性能参数及膜电阻、膜中扩散系数的测定方法。
The results show that oxidizing mechanism of the heater tube is mainly diffusion of metal ion passing through oxide and its reaction at the oxide-gases boundary.
结果表明，炉管的氧化机理主要是金属离子穿过氧化物层的扩散并在氧化物—气体界面发生反应。
The results show that no matter the range of the implanted ion itself or secondary effect sphere of secondary electrons, radical diffusion, thermal spike, cascade atoms and shock wave etc.
结果表明：无论是注入离子本身的射程，还是次级电子、自由基扩散、高温热穗、级联原子和冲击波等次级作用范围都无法触及表皮下面的胚细胞。
Permeability of concrete and its correlation with chloride ion diffusion coefficient under different test conditions including water pressure method and tension method are studied.
本课题主要研究混凝土在水压法及张力法试验条件下水在混凝土中的渗透行为以及同氯离子扩散系数相关性。
The kinetic mechanism for the behaviour of membrane conductance was given according to the ion diffusion in the membrane and the charging process in the equivalent circuit.
膜电导的上述行为可用离子在膜中的扩散解释，还可用电荷对电极等效线路的充电解释。
The solution the rise of temperature diffusion speed up, reduce can strong difference, in addition, temperature polarization still can make ion dehydration process of speed up.
镀液温度的升高能扩散加快﹐降低浓差极化﹐此外﹐升温还能使离子的脱水过程加快。
In the study of thin-film conductors, ion diffusion is an important phenomenon as electrodiffusion degradation can lead to metallization failure.
在薄层导体的研究中，粒子的扩散是一类重要的现象，由于电扩散的降解能导致金属的毁坏。
The mixture ratio of C40 Marine high performance concrete is optimized through test of the hydration heat of binding material, slump, chloride ion diffusion coefficient, anti-crack rand of concrete.
通过测试胶凝材料水化热、混凝土的坍落度和氯离子扩散系数、抗裂等级等性能，对C40海工混凝土的配合比进行了优化设计。
An experimental study has been carried out on the doping of polysilicon by ion implantation and diffusion for the preparation of shallow junctions.
本文对多晶硅膜离子注入掺杂和扩散掺杂制备浅发射结进行了实验研究。
The boundary layer is characterized by a concentration gradient of the oxidized ion. Diffusion of the reducing agent ion through the boundary layer controls the REDOX reaction.
边界层的特征在于被氧化离子的浓度梯度，还原剂离子的扩散通过边界层控制了氧化还原反应。
The ambipolar electric field is important and the ambipolar diffusion flux is of the same order of the ion diffusion level.
此时，存在明显的双极电场，而双极扩散流基本上是离子扩散的量级。
Diffusion of anolyte containing ferric ion into the cathode compartment is avoided by maintaining a small hydrostatic head of the mixed solution in the diaphragm-bag.
通过维持隔膜袋里混合溶液小的静压头，避免含有三价铁离子的阳极液扩散进入阴极室。
With the increasing of the viscosity of electrolyte, the diffusion coefficient of I_3 ion decreased rapidly to be a new controlling step in the quasi-solid state dye-sensitized solar cell.
发现随着电解质体系粘度的增加，I_3~-离子扩散系数急剧下降，进而在准固念染料敏化太阳能电池的光电转换过程中形成新的速控步骤I_3~-离子的扩散过程。
In this paper, four different ratio groups of concrete specimens are tested, using NEL method which is based on ion diffusion and electrical migration.
配制四组不同混凝土配合比的试件，采用基于离子扩散和电迁移提出的NEL法对饱盐混凝土试件的氯离子扩散系数进行测定。
Meanwhile, the removal of the free sulfur from the chalcopyrite will facilitate the ion diffusion and the further oxidative solution of chalcopyrite.
同时，清除黄铜矿表面氧化溶解产物——单体硫后，有助于离子扩散和黄铜矿的进一步氧化溶解。
On the condition of long time seawater corrosion, the hydroxide ion diffusion coefficient and the chlorion diffusion coefficient of fly ash concrete are far smaller than th...
在长期海水侵蚀下，掺粉煤灰混凝土的氢氧离子扩散系数的氯离子扩散系数亦均远小于基准混凝土。
The diffusion of bromine-bearing species through ion-exchage membranes used in Zn-Br cell has been analysed and studied in this paper.
本文就含溴组份在锌—溴电池所用全氟膜内的扩散进行了分析、研究。
Content of potassium ion in the Kappa - Carrageenan directly influence on condensation point the strength and diffusion water of Carrageenan gel.
钾离子在K型卡拉胶中的含量直接影响凝胶强度及凝固点，并影响卡拉胶应用产品的泌水性。
The research indicates that the deposition rates of the alloy and silver are controlled by the diffusion of ammine silver complex ion in the bath.
研究证明钯银合金和银的沉积速率受控于银氨给离子的传质过程。
The dielectric barrier surface discharge process is simulated using Poisson's equation and drift-diffusion equation and the distribution history of electron, ion and electric field is gained.
采用泊松方程和漂移-扩散方程对介质阻隔面放电进行数值模拟，得到了电子、离子以及电场分布随时间的变化。
The effective diffusion coefficient of water-solubility chloride ion in GBC concrete is 17% of that in the OPC.
GBC混凝土比普通混凝土具有更强的抗氯离子扩散性能，其水溶性氯离子有效扩散系数只有普通混凝土的17%。
On the basis of the distribution of ion concentration and the theory of matter transfer in liquid, the expression for diffusion and absorption electromotive force was deduced.
利用此方程进行了计算，结果表明：地层水矿化度、阳离子交换量、电解质类型对扩散吸附电动势影响较大；
It was found that the rate of ion exchange depends on the migration of individual ions and that the particle diffusion coefficient changes with the fractional attainment of equilibrium.
个别离子的迁移率对交换速率有影响，粒子扩散系数随平衡分数而改变。
Through a great deal of experiments, the durability of HPC with artificial sand are studied systematically. Impermeability, freezing resistance and chloride ion diffusion are tested.
通过大量试验，系统研究了人工砂高性能混凝土的耐久性，对抗渗性、抗冻性、氯离子扩散系数等项目进行了测试。
Through a great deal of experiments, the durability of HPC with artificial sand are studied systematically. Impermeability, freezing resistance and chloride ion diffusion are tested.
通过大量试验，系统研究了人工砂高性能混凝土的耐久性，对抗渗性、抗冻性、氯离子扩散系数等项目进行了测试。
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