A new method for calculating Euler equations is presented by means of the theory of reproducing kernel space and finite difference method.
利用再生核理论和有限差分法给出了一种计算欧拉方程组的新方法。
In this paper the error caused by grinding heat is analyzed by using methods of finite element and finite difference, and the theory datas are contrasted.
本文利用有限差分和有限元两种方法对磨削热引起的误差进行了分析，并对理论数据进行了对比。
The slope stability is simulated and analyzed by finite difference program FLAC software and strength reduction theory.
将强度折减理论与FLAC软件相结合，利用有限差分程序FLAC软件来模拟分析边坡稳定性。
Finally, we investigate the unidirectional transmission behavior of PC molecules consisting of nonlinear defect pairs by use of the coupled mode theory and the finite-difference time-domain technique.
最后，我们利用耦合模理论和有限时域差分技术研究了非线性缺陷对构成的光子晶体分子的单向导通行为。
The equations are formulated according to Winkler's theory and finite difference principle.
公式的建立是按文克尔理论、和差分原理进行的。
The recent potential flow theory and finite-difference method are applied to generate orthogonal numerical grids and to compute two-D plane flow fields.
运用新近的解析-数值势流理论方法，生成正交数值网格，用差分法计算出平面二维流场。
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。
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。
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。
The detection algorithm that adopts tow-level finite difference and extremal theory is used to locate the R wave and the one-level and tow-level derivative methods is used when detect QRS wave.
对于R波，采用二级差分和极值方法定位，对QRS波群采用一阶导数与二阶导数并用算法进行检测。
The detection algorithm that adopts tow-level finite difference and extremal theory is used to locate the R wave and the one-level and tow-level derivative methods is used when detect QRS wave.
对于R波，采用二级差分和极值方法定位，对QRS波群采用一阶导数与二阶导数并用算法进行检测。
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