The Research and Development of Ion Diffusion in Soils
土壤中离子扩散研究进展
Ion diffusion kinetics in soils can be classified into three types:negative first-order, zero-order and first-order kinetics.
本文首先从理论上分析了土壤中离子扩散的动力学问题，提出了土壤中离子扩散的三种动力学类型，即扩散的一级动力学、零级动力学和负一级动力学，并且还指出，一级动力学是土壤中离于扩散的普遍形式，负一级动力学只出现在过程的初期阶段，而扩散的零级动力学则存在于有快速表面反应的情况下。
Experimental results show that,the excursion of the peak potential of CV curves is caused by ion diffusion in three-dimensional MRGC film electrodes;the ion diffusion resistance in electrode decreases with the increase of thickness of graphite matrix,this leads to the decrease of ΔE_p with the increase of spacing between graphite cores.
研究结果表明,由于三维MRGC膜电极系统内部离子扩散影响,CV图的峰电位将发生偏移。
Two-dimensional finite element simulation for chloride diffusion in concrete;
混凝土中氯离子扩散的二维有限元法数值模拟
A multi-mechanistic chloride diffusion and transport model and sensitivity study;
综合机制下氯离子扩散迁移模型及敏感性研究
In order to know chloride diffusion characteristics well in concrete at tidal zone,chloride diffusion rules in concrete were studied under the effect of dry and wet alternation and flexural load.
试验结果表明:随着混凝土强度等级的提高,氯离子扩散性能降低;随着荷载水平的提高,受拉区混凝土抗氯离子侵蚀的能力降低,受压区混凝土抗氯离子侵蚀的能力有所提高;受拉区混凝土抗氯离子侵蚀能力明显低于受压区;无论承受受压荷载还是受拉荷载,随着时间的延长,氯离子在混凝土中的扩散系数均逐渐降低。
Effect of Concrete Pore Structure on Chloride Diffusivity
混凝土孔隙结构对氯离子扩散的影响
SUMMARY OF TESTING METHOD FOR CHLORIDE IDIFFUSION COEFFICIENT IN CONCRETE
混凝土氯离子扩散系数测试方法述评
Chloride diffusion model of air-entraining fly ash concrete
引气粉煤灰混凝土的氯离子扩散模型
Study on Electrochemical Properties and Li-ion Diffusion of LiFePO_4
LiFePO_4的电化学性能和锂离子扩散研究
Study on diffusibility of chlorine ions in cement-based cementitious materials
水泥基胶凝材料氯离子扩散性的研究
Ion Diffusion in Three-Dimensional Film Electrodes for ECIS Process
三维膜电极电控离子分离过程离子扩散特性研究
Slump, slump flow, comprehensive strength and chlorine diffusion are tested.
检验了坍落度、动性、合强度和氯离子扩散作用。
Study on Steel Bar Rust Caused by Chlorion Diffusion in Concrete
混凝土中氯离子扩散引起钢筋锈蚀过程的研究
Measurement of Diffusion Coefficient of Ag~+ by Computer Controlling Chronopotentiometry
微机控制计时电位法测定银离子扩散系数
Prediction of the Chloride Diffusivity of Concrete and the Time to Surface Cracking;
混凝土氯离子扩散系数和表面开裂时间预测
Test and Boundary Element Analysis for Chloride Diffusion in Concrete;
混凝土中氯离子扩散实验及边界元分析
A Lattice-type Model for Predicting the Chloride Diffusivity of Concrete
混凝土氯离子扩散系数预测的格构模拟方法
STUDY ON CHLORIDE DIFFUSION IN HIGH PERFORMANCE CONCRETE WITH HIGH VOLUME FLY ASH
大掺量粉煤灰高性能混凝土中氯离子扩散研究
Life Assessment and Chloride Ion Diffusivity of Marine Concrete
海工混凝土的氯离子扩散性与寿命评估
Diffusion Behavior of Small Molecular Permeates in Polyelectrolyte Membrane;
小分子在聚离子膜中的扩散性能研究
Experimental Study on the Creation and Diffusion of an Ultracold Plasma
超冷等离子体产生及扩散的实验研究
When the water contains a high concentration of ions, the diffuse layer would obviously be compacted.
当水中含有高浓度离子时，扩散层会明显收缩。
The migration of iodide ion between layers is controlled by barrier interlayers.
碘离子在层间的扩散作用可以用隔层加以控制。