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1)  spectral and pseudo spectral methods
谱与拟谱法
2)  spectral and pseudospectral method
谱与拟谱方法
1.
The Laguerre spectral and pseudospectral methods for multiple-dimensional nonlinear partial differential equations are investigated.
研究多维区域中非线性偏微分方程的谱与拟谱方法。
3)  pseudo-spectral method
拟谱方法
1.
A new pseudo-spectral method for solving Poisson equation in polar coordinate system;
极坐标系下泊松方程的拟谱方法
2.
Convergence and optimal error estimation of pseudo-spectral method for nonlinear Boussinesq equation;
非线性Boussinesq方程拟谱方法的收敛性与最优阶误差估计
3.
The waterfall plots of the wave were drawn with Matlab according to the numerical simulation of the fKdV equation with the pseudo-spectral method.
在导出非线性表面波遵循的fKdV方程后,利用拟谱方法进行数值模拟,用Matlab软件绘制瀑布图,由此得出结论:上凸底部上的波可以看成是向前凸台阶和向后凸台阶分别向前后散射发展的结果,二者不发生相互作用;下凹壁面的波形是向前凹台阶和向后凹台阶相互作用的结果;某些组合式底部的波形是上凸和下凹相互作用的结果。
4)  pseudospectral method
拟谱法
1.
By using the splitting-step pseudospectral method,the partial-differential terms of equations are ex- pended based on Chebyshev polynomials.
运用分步拟谱法,以Chebyshev多项式为基底,对偏微分项进行谱展开,建立了拟谱法数值求解二维潮波方程的计算模型,模拟计算了均匀方池水柱微扰引起的水波运动,并以大亚湾海域为背景,由静止水位算起,模拟计算了区域的潮流。
2.
This method is based on the direct transcription method that converts an optimal control problem into a nonlinear programming problem using Legendre-Gauss pseudospectral method via simultaneous state and control discretization.
本方法基于直接配置法,通过Legendre-Gauss拟谱法同时离散化状态变量和控制变量把最优控制问题转化为一个非线性规划问题。
3.
In this thesis, an advanced pseudospectral method is used to solve time-dependentSchrSdinger equation, which treats with the atomic hydrogen in intense laser field:With this method, the ground wavefunction of atomic hydrogen, which is calculatedby the pseudospectral method, is treated as the initial wavefunction.
本文利用改进的拟谱法(pseudospectral method)求解氢原子在强激光场中的含时薛定额方程。
5)  pseudospectral method
拟谱方法
1.
The characteristic pseudospectral methods for convection diffusion problem;
对流扩散问题的特征拟谱方法
2.
The Fourier pseudospectral methods for the generalized symmetric regularized long wave equations;
广义对称正则长波方程的傅里叶拟谱方法
3.
Pseudospectral method for a class of equations system under the coupling effect between the complex Schrodinger and real Boussinesq fields;
复Schrodinger场和实Boussinesq场耦合作用下一类方程组的拟谱方法
6)  split-operator
谱拟合法
1.
Use spectral fitting method,split-operator spectral method,solving the time-dependent Schrdinger equation of hydrogen system with confined potential enery,simulatel the process of laser interacting on hydrogen system.
采用谱拟合法,劈裂算符法对处于限制势中的氢原子与激光场的相互作用进行了布居分布的数值计算,通过模拟实验与分析,结果表明加了限制势之后,通过降低激光场强度在减少布居泄漏的同时可以保证Rabi振荡频率不变。
补充资料:裂解气相色谱-质谱法
分子式:
CAS号:

性质:在普通的气相色谱质谱联用仪(GC/MS)的进样系统中加一个热裂解器,在热裂解器中,高聚物大分子被加热裂解成小分子气体,载气辛巴这些小分子带入色谱仪进行分离,再引入质谱仪进行电离和分析,质谱仪给出这些小分子的质谱图,化学家可以根据质谱结果,推测出原来高聚物的种类和可能结构。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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