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- ion diffusion equation 离子扩散
- In this paper,we have studied the mechanism of mixed molten salt ion ion exchangefrom diffusion equation in the cylinder and the probability of reducing aberration of selfoclenses. 本文从圆柱内扩散方程出发,就混合熔盐离子交换的机理及减小自聚焦棒透镜象差的可能性进行了研究。
- The model consists of a single advection?diffusion equation with a source term. 此模型由一个单一的具有源项的对流扩散方程组成.
- The electrode structure used for ion diffusion metalling on the inner surface of the tube parts was obtained. 通过实验证实,管状零件内表面离子渗金属的电极结构是正确的。
- The solution of the diffusion equation can be used to simulate the evolution of some kinds of scarp slopes. 摘要扩散方程可以用来模拟某些坡地演化形态。
- The other type of initial value problem of interest for us is the diffusion equation. 另一类我们感兴趣的初值问题是扩散方程。
- The experimental results show that surface mortar layer can significantly reduce the chloride ion diffusion coefficient of concrete. 结果表明,致密的表面砂浆层能显著地降低混凝土本体的氯离子扩散系数。
- RCPT and chloride ion diffusion test may be applied to assess the concrete durability besides rebar corrosion rate measurement. 但利用快速氯离子渗透试验(RCPT)、氯离子扩散试验与钢筋腐蚀试验可评估其耐久性。
- In addition, the compressive strength, absorption rate, rapid chloride penetration test (RCPT) and chloride ion diffusion test were performed. 此外并进行各项试验其中包括抗压强度、吸水率、快速氯离子渗透试验(RCPT)、氯离子扩散试验及混凝土电阻试验等探讨高性能混凝土的耐久性。
- The form solution to the Mixed Problem of one dimension inhomogeneous diffusion equation was given through the method of undetermined function. 摘要利用待定函数法给出了一维非齐次扩散方程混合问题的形式解。
- The properties of solution to a class of quasilinear degenerate parabolic system coupled via three nonlinear diffusion equation are considered. 摘要研究了由三个拟线性退化抛物型方程通过非线性项耦合而得到的一类拟线性退化抛物方程组解的性质。
- RICHARD C.HASKELLI,Lars O.Svaasand,et al.,Boundary conditions for the diffusion equation in radiative transfer[J].J Opt Soc Am A 1994,11(10):2727 2741. 张睿;刘小林;鲍鸿吉;等.;边界条件对生物组织漫射光时域模拟计算的影响[J]
- 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。
- A perturbational finite volume (PFV) method for the convective diffusion equation is presented in this paper. 在有限体积(FV)方法的重构近似中;引入数值摄动处理;即把界面数值通量摄动展开成网格间距的幂级数;并利用积分方程自身的性质求出幂级数的系数;同时获得高精度迎风和中心型摄动有限体积(PFV)格式.
- This paper deals with the periodic optimal control governed by a degenerate nonlinear diffusion equation. 摘要研究由退化非线性扩散方程所支配系统的周期最优控制问题。
- The diffusion equations are derived by the Chapman Enskog method. 该模型满足流体质量扩散方程和运动方程。
- This algorithm using wavelet coefficient to approximates the diffusion function of the nonlinear diffusion equation. 该方法用小波系数估计非线性扩散方程的扩散函数。
- The continuum equation for tumor cell and the diffusion equation for nutrients and inhibitor are established. 建立肿瘤细胞相的连续胜方程与营养、抑制因子的扩散方程。
- Both ion diffusion and transport of ions to the root surface by mass flow appear to be dependent on soil moisture content. 离子扩散和通过质体流动把离子运送到根表面,看来似乎都取决于土壤的含水量。
- This paper concerns with the initial and boundary value problem for a nonlinear diffusion equation with degeneracies. 摘要研究具退化性的一类非线性扩散方程的初边值问题。