The key to all-dip wave field migration using finite-difference method lies in the continuation direction of wave field.
用有限差分法进行波场全倾角归位的关键在于波场的延拓方向。
Then, the bistable behaviors of nonlinear PC defects are simulated by use of the finite-difference time-domain technique.
然后，通过时域有限差分技术模拟了非线性的光子晶体的双稳行为。
The method is validated by comparing the results obtained by this method with those obtained by the finite-difference method.
通过与有限差分计算的频散曲线的比较验证了算法和程序的正确性。
This paper discusses the convergence problem of the finite-difference time-domain (fd-td) method through some computing examples.
本文通过计算实例讨论了时域有限差分法的收敛性问题。
The finite-difference frequency-domain method with multifrontal algorithm is presented for two-dimensional cylinder scattering problems.
引入多波前算法，提出了结合频域有限差分法分析二维柱体的电磁散射问题。
Many correlative techniques are involved, including seismic viscoelasticity, seismic wave theory, finite-difference and wave field modeling.
文中涉及粘弹性力学理论、地震波传播理论、有限差分理论、波场正演模拟技术等相关知识。
A 48-hour forecast obtained by this method with actual data is comparable to the results given by a finite-difference model with a higher resolution.
对一个实例所做的48小时预报可与较高分辨率的差分模式相比。
The three-dimensional finite-difference beam propagation method was used to compute the optical properties of fiber devices based on side-polished fiber.
本文还用三维有限差分光束传输法计算了侧边抛磨光纤波导的光学特性。
Aiming at the problem of on-line calculation to the temperature field for turbine rotor, the Crank-Nicolson finite-difference calculation model was given.
针对汽轮机转子温度场的在线求解问题，给出了克兰克·尼科尔森差分计算模型。
Calculating on practical problems shows that both the finite-difference beam propagation method and the gain character programs can give reasonable results.
实际计算表明，本文所编写的有限差分束传播法和掺铒波导增益特性计算程序，均能给出合理的计算结果。
The model equations are computed by means of a finite-difference method. The three dimensions of temperature fields for EED are gained and the results are discussed.
用有限差分法对该模型方程进行求解，得出了桥丝式电火工品的三维温度场分布，并对结果进行了分析。
The algorithm USES multi-time steps to replace single time step in traditional non-uniform finite-difference time-domain (NU-FDTD) method to enhance the computing speed.
该方法通过应用多个时间步长替代传统非均匀时域有限差分(NU - FDTD)法的单一时间步长的算法来提高计算速度。
In order to quickly predict the production performance, the streamline method was employed to solve this model as an alternative to the traditional finite-difference method.
为了实现生产动态的快速预测，用流线方法替代传统的有限差分法求解该模型。
Numerical modeling results for seismic wave propagating in rocks with random dis- tributed fractures using a staggered high-order finite-difference (SHOFD) are also presented.
最后，利用高阶的交错网格有限差分方法，我们模拟了地震波在具有随机分布裂缝岩石中的传播特征。
This paper presents an optimization of centered finite-difference operator based on the principle of constrained cost function, which can reduce the truncation error to minimum.
作者根据约束性代价函数原理提出了能够使得截断误差最小化的中心差分优化算子。
On the basis of the coupled mode theory, the finite-difference method is used to simulate the transmission of Bragg bright solitons in parabolic squared-apodization fiber gratings.
本文在耦合模理论的基础上，运用有限差分法数值模拟了布拉格亮孤子在抛物线平方变迹光纤光栅中的传输特性。
Basing on the continuum theory of liquid crystal, a new finite-difference iterative method is proposed to calculate the distribution of liquid crystal directors under an applied voltage.
在液晶连续体弹性形变理论的基础上，提出差分迭代方法求解液晶指向矢的空间分布。
Based on the non-linear kinematic wave method, a technique using the four point, excentric, implicit, finite-difference numerical scheme to simulate the urban storm sewer system is introduced.
本文根据非线性运动波法理论，介绍了四点非中心隐式有限差分格式模拟城市雨水管网的技术。
An explicit finite-difference method (FDM) was used to model and simulate the solidification of eutectic cast iron by combining heat transfer equations with undercooling nucleation and growth laws.
综合热传导方程与过冷形核、生长规律，用显式有限差分法模拟了共晶铸铁的凝固过程。
The paper introduced the prestack depth migration from relief surface based on implicit wide-angle finite-difference one-way propagation operator and used SEG piedmont nappe structure model for test.
本文介绍了基于广角隐式有限差分单程波传播算子的起伏地表叠前深度偏移方法，并对SEG山前带推覆构造模型进行了检验。
So the main work in this dissertation is compiling and debugging the program for solving the field distribution in channel waveguides using three-dimensional finite-difference beam propagation method.
为此，本文重点完成了利用三维有限差分束传播法求解条形波导中场分布的计算程序的编写和调试。
Finite-difference iterative method is used for numerical solution.
应用差分迭代方法进行了数值求解。
Finite-difference iterative method is used for numerical solution, and some curvatures varied with different parameters are obtained.
应用差分迭代方法进行了数值求解，得到了液晶指向矢随不同的参数变化的曲线。
The problems of EM energy absorption of human body irradiated by plane wave are discussed by using the Finite-Difference Time-Domain (FD-TD) method.
本文讨论了用时域有限差分法计算在平面电磁波照射下人体对电磁能量的吸收问题。
The interaction of the pulse electromagnetic field with human body using the Finite-Difference Time - Domain (FD-TD) method and the inhomogeneous block human body model is discussed in this paper.
用时域有限差分法和非均匀块状人体电磁模型研究了脉冲电磁场对人体的作用问题。
It is investigated using finite difference time domain method based on Drude model.
采用基于等离子体物理模型的时域有限差分法对其进行了研究。
The results of the precise integration method agree well with the theoretical solution and have higher precision than those of the finite difference method.
数值算例表明，用精细积分法得到的解与精确解十分吻合，比有限差分法具有更高的精度。
But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
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