差分法

The other approach is to use finite difference method to solve PB equation and incorporate the solution into SD simulation, which produces our FDSD simulation procedure.

将有限差分法求解PB方程的方法与随机动力学相结合，得到FDSD模拟程序。

The results of transient temperature field calculated by finite difference method and ANSYS software agree with the experimental results.

高压氮气淬冷温度场的有限差分法计算结果和ANSYS有限元分析软件计算结果与实测结果吻合较好。

This paper deals with application of finite difference: digital computation in fuze design.

本文论述有限差分法与δ图解法在引信设计中的应用。

Meanwhile, a facilitated electromagnetic model of a general purpose computer motherboard is built. Numerical simulation based on the Finite-Difference Time-Domain method is performed and the coupled electromagnetic field of the motherboard is achieved.

以一款普通计算机主板作为研究对象，使用时域有限差分法进行模拟计算，得到了EMR作用下计算机主板耦合的电磁场分布。

In Chapter 4, the pricing of Asian geometric average option under stochastic interest rates is studied, assuming CIR model for the interest rates. Asian option is strongly dependent with path, usually have a long duration, the movement of interest rates becomes more important in pricing such long-dated options. The CIR interest rate model not only considered the interest rate behavior has mean-reverting but also take into account that the fluctuation rate is direct proportion with the square root of its interest rate. Finally, the method of finite difference for the Asian geometric average option under CIR interest rate model is given.

第四章在利率满足CIR利率模型的假设下，研究了几何亚式期权的定价公式，亚式期权是强路经依赖性期权，通常有效期较长，在进行较长时期的投资时，利率的变化是非常重要的，CIR利率模型不仅考虑了利率行为具有均数回归的现象，而且还考虑其波动性的大小与利率大小的平方根成正比，最后给出了CIR利率模型下的几何亚式期权定价的有限差分法。

The principles of digital speed measurement is described first, and then according to the actuality of the gimbal servo system and the characters of DSP, the method of position difference based on DSP is applied to the servo system.

在分析了数字测速方法的原理之后，根据转台伺服系统速度检测方法的现状及DSP更适合数字化测速的特点，用DSP对目前广泛运用于转台伺服系统中的数字测速方法―位置差分法进行了实际应用，并给出了具体的软、硬件实现方法。

An implicit differential method for the wave equation of rod pumping system［J］.

有杆抽油系统预测模型的隐式差分法［J］。

Molecular dynamics ; finite difference technique ; interatomic potential ; equilibrium ensemble ; structural analysis technique

分子动力学；有限差分法；原子间作用势；平衡态系综；结构分析技术

Molecular dynamics ; finite difference technique ; interatomic potential ; equilibrium ensemble

分子动力学；有限差分法；原子间作用势；平衡态系综

On the basis of Ohm's and Kirchhoff's law, The mathematic model that can be used to caluculate the 3—D current distribution in alumina reduction cell was derived, and the computer program was compiled by finite differential method.

根据欧姆定律和基尔霍夫定律，用有限差分法导出了求解铝电解槽内三维电流分布的数学模型，编制了计算程序，在国内首次较准确地计算了铝电解槽内三。。。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。