Numerical resolution of a non-linear diffusion equation was used to fit the experimental data.
浓度剖面的实验数据由非线性扩散方程的数值解进行拟合。
Image denoising with second order non-linear diffusion PDEs often leads to an undesirable staircase effect, namely, the transformation of smooth regions into piecewise constant ones.
利用二阶的非线性扩散方程进行图像去噪易产生具有“阶越效应”的去噪结果，也即使分段光滑的图像变为分段常量的。
Objective; To compare the dependence of signal attenuation on temperature and time caused by the diffusion movements in inhomogeneous and linear gradient magnetic field.
目的：比较非理想均匀磁场和线性梯度磁场中扩散运动引起的信号衰减对温度、时间的依赖性。
The experimental results show that the growth mechanism of the KTP crystal coincides with the linear law and the law of the parabola of surface or volume diffusion of the BCF atomic growth theory.
实验结果表明，KTP晶体生长机制与原子化的BCF生长理论的面扩散或体扩散的线性定律与抛物线定律相吻合。
The molecule flow diffusion equation and the boundary conditions are given. The solution with linear approximation of entrance pressure is presented.
给出了分子流扩散方程的边界条件，推导出入口压力在线性近似下方程的解。
To improve linear complex diffusion algorithm for image denoising, a new linear complex diffusion algorithm is put forward.
对线性复扩散去噪算法进行改进，提出了非线性复扩散图像去噪算法，构造了新的非线性复扩散系数。
The linear relationship between interface curvature and diffusion driven force is briefly reviewed. And within this relationship there exists a critical curvature which can not be calculated as yet.
简要总结了曲率与扩散驱动力的关系： 化学势差与曲率成正比线性关系，这一关系中存在临界曲率，目前尚没有计算该临界曲率的方法和理论。
In BBS, we study the index system affecting topic diffusion to achieve the diffusion trend forecast based on multivariate linear regression theory.
在论坛内，提炼影响传播行为的指标体系，并结合多元线性回归理论，实现了对传播趋势的预测。
The topic diffusion analysis technology based on diffusion map and multivariate linear regression has been studied.
提出基于传播图和多元线性回归的话题传播分析技术。
The linear scanning voltammetry (LSV) was also inspected in this article, and shows that it can be applied to the study of copper-tin mutual diffusion layer more accurately and rapidly.
本文同时考察了线性扫描法（LSV），结果表明线性扫描曲线可以更加准确、快速的用于铜锡互扩散层研究。
Under the condition of linear fog source and arbitrary wind direction, the diffusion rule of the fogging in narrow valley induced by hydraulics jump was studied by utilizing Gauss diffusion equation.
在雾源为连续线源和任意风向的条件下，利用高斯扩散方程，研究了水雾在峡谷内的扩散规律；
In this paper, the optimal distributed control problems for a class of age-dependent non-linear population diffusion system with final state observation are studied.
讨论了一类具终端观测且与年龄相关的非线性时变种群扩散系统的最优分布控制问题。
For serial images with linear structure, 3d coherence enhancing diffusion model is introduced.
在此基础上，针对线性结构图像序列，给出了三维一致增强性扩散模型。
In this paper, the behavior of the solutions of the non-linear market diffusion models, which describes the market competition diffusion process of two consumer durable, was studied.
本文讨论两种耐用消费品的市场竞争扩散过程，研究相应的非线性市场扩散模型解的性态。
Linear modified characteristic finite difference and alternating direction schemes are devised for nonlinear convection diffusion problems.
给出了解非线性对流扩散方程的线性修正的特征差分格式及交替方向格式。
Diffusion and transference of organic pollutants in water environment is a non-linear process which will be affected by many factors.
水环境中有机污染物的扩散迁移是一个由多种因素影响的复杂的非线性过程。
A numerical method based on the local linear analytical solution is given for the nonlinear advection diffusion equations.
本文提出了数值求解对流扩散方程的局部解析算法。
Finally, the performance of information diffusion yield estimation model was compared with multiple linear regression model and BP neural network model.
然后针对模型的稳定性和精度进行交叉验证，并与多元线性回归模型和BP神经网络模型进行对比。
Finally, the performance of information diffusion yield estimation model was compared with multiple linear regression model and BP neural network model.
然后针对模型的稳定性和精度进行交叉验证，并与多元线性回归模型和BP神经网络模型进行对比。
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