diffusion constant

The calculations of magnetic diffusion constant and Kolmogorov entropy in a stochastic field region

随机磁场中磁扩散常数和Kolmogorov熵计算

The expressions of the mobility , the resonant frequency and the diffusion constant of kinks are found .

求出了扭结的迁移率、共振频率和扩散常数的表示式。

A characteristic factor Io with relation to diffusion constant of the vacancy in MnO_2 was obtained .

使用恒电位二步极化法求得与MnO2中氧缺位扩散性质相关的特征因子I~o。

The numerical results show that the diffusion constant and entropy obtained by this method are in good agreement with those of direct dynamical computations .

数值结果指出，用这种方法得到的扩散常数和熵与直接动力学计算得到的非常符合。

It was studied how diffusion constant D , particle diffusion coefficient D and retarding time varied in accordance to different flowing velocities .

本文研究了流速对扩散常数B、内扩散系数D、阻滞时间的影响。

The diffusion constant D / R 2 and diffusion coefficient D were calculated by means of the simplified Fick ′ s second law .

同时用Fick第二定律计算了扩散常数和扩散系数。

The second possible mechanism may be that reperfusion had occurred , restoring the diffusion constant to normal but not preventing eventual delayed infarction .

梗死后的再灌注使得弥散受限恢复正常，但是不能阻止再次梗死的发生。

A method for measurement of tissue optical properties by time resolved reflectance was improved , i.e. the contribution of the absorption coefficient to diffusion constant was considered .

通过考虑吸收系数对漫射常数的影响，改进了时间分辨反射中两点测量生物组织光学性质的方法。

Using the formula , the thin film parameters , such as Seebeck coefficient , thermal diffusion constant , and laser penetrating depth , can be estimated indirectly .

依据该公式，可以对薄膜的一些参量如Seebeck系数、热扩散常量、光穿透深度等进行间接的测量。

The perturbation distribution function can be obtained by solving Liouville equations one by one , and the magnetic diffusion constant and Kolmogorov entropy can be calculated by using distribution function .

利用分布函数，计算磁扩散常数和KOLMOGOROV熵。

In the second part , a method studying stochastic transition which is the master equation method is introduced , and explicit solutions of velocity V and diffusion constant D of the steady state are obtained when a particle hops among a dimensional and periodic N states .

第二部分介绍了一种研究随机跃迁的方法&主方程方法，着重推导了粒子做一维周期性N态随机跃迁时达到稳态的速度、扩散系数的一般表达式。

Method : Orthogonal design was used in transdermal test with transdermal diffusion rate constant as selection standard .

方法：采用正交试验，对双氯芬酸二乙胺凝胶进行体外透皮试验，以透皮扩散速率常数为考察指标。

It means that the spin diffusion time constant is quite different from the spin-spin relaxation time constant , although the two processes are closely related .

这意味着，自旋扩散时间常数与自旋&自旋弛豫时间常数是很不相同的，虽然这两个相应过程虽密切相关的。

It is demonstrated by mathematic calculation that the discharge capacity of insertion electrode depends on the value of Q ( defined as the ratio of discharge hour rate and diffusion time constant ) .

数值计算的结果表明，Q值（放电时率和扩散时间常数之比）对材料的放电容量有非常重要的影响。

The difference in the network structure could be characterized by the kinetic parameters such as the apparent diffusion kinetic constant ( Ka ) , the coefficient of diffusion ( Da ) and half-diffusion value ( t1 / 2 ) .

并根据溶质扩散动力学参数，如表观速率常数（Ka）、表观扩散系数（Da）以及半扩散时间（t（1/2））的区别，反映出凝胶网络结构特征。

Asymptotic behavior of a reaction diffusion system with constant rate stocking

具常投放率的反应扩散系统的渐近性质

The analytical solutions for material transport and diffusion equation under constant condition

恒定条件下物质输移扩散方程的几种解析解

Ruin Estimates of Diffusion Models under Constant Interest Rate

常利率环境下带干扰风险模型的破产估计

With analysis of transport diffusion characteristics of constant and continuous pollutants of reservoir , the analytical solution of one dimensional water quality model equation under simplified conditions in given .

通过对水库恒定时间连续污染源输移扩散特征的分析，在其简化条件下求得一维水质模型方程的解析解。

In this paper , we investigate the probability of ruin in the COX Model With disturbed by diffusion Under a Constant Interest Rate . Integral equations are obtained that the probability of ruin satisfy .

讨论了常利率下带干扰的Cox模型的破产概率，分别得到了条件破产概率和最终破产概率所满足的微积分方程。

The effective diffusion coefficient and rate constant of intraparticle transport were calculated .

求出了颗粒内有效扩散系数和颗粒内扩散速率常数。

Simultaneous Determination of Diffusion coefficients and Time Constant of the Detection System in Microfluidic Chin-Based Capillary Electrophoresis Qualitative Analysis by Using a Serially Connected Binary Gas Chromatographic Capillary

用芯片毛细管电泳测定分子的扩散系数和检测器时间常数根据双载气串联毛细管气相色谱系统压力操作参数进行定性分析

The electrochemical kinetics , which were studied by bulk electrolysis with coulometry , chronocoulometry and chronoamperometry , were used for the calculation of electron transfer number , electron transfer coefficient , diffusion coefficient and rate constant .

运用控制电位电解库仑法、计时库仑法、计时电流法研究了它们的电化学动力学规律，由电化学动力学测定并计算出了它们的电子转移数、电子转移系数、扩散系数、反应速率常数。

The ratio of the square of certain concentration gas diffusion depth and diffusion time is constant when it diffuses and reacts through the solids bed .

一定浓度的气体通过固体颗粒层扩散-反应时，其扩散深度的平方与扩散时间的比值为常数。

Based on the distance of interfacial migration and the thickness of diffusion layers , we have obtained the effective diffusion coefficient , the diffusion constant and the diffusion activation energy under various high magnetic field conditions as viewed from the kinetics and thermodynamics of atom diffusion , respectively .

通过考察界面迁移距离、扩散层厚度等从动力学角度计算强磁场下有效扩散系数，并且从热力学角度获得强磁场条件下的扩散常数和扩散激活能。

In combination with KMC simulation of the island diffusion of atomic superlattice , we show that the atomic diffusion process determines the scaling exponential of the island diffusion constant to the number of atoms .

我们在实验上还观察到了原子超晶格的岛扩散。蒙特卡罗模拟表明，原子扩散过程决定岛扩散常数与原子数的标度指数。

According to Fick diffusion law , the growth of the relationship of IMC thickness and the square root of cumulative test time is roughly linear , so the diffusion coefficient , and the diffusion constant and activation energy are calculated by the means of fitting .

根据Fick扩散定律和分子动力学方程，IMC的生长厚度与累积测试时间的平方根大致呈线性关系，故拟合计算出了与传统热疲劳结果近似的扩散系数，扩散常数和活化能。