查询词典 harmonic analysis

The simulation with simple harmonic analysis on the performance of a regenerator was carried out.

采用谐波分析法，对回热器进行了模拟。

A method of simple harmonic analysis for calculation of regenerator in thermoacoustic heat engine systems is described.

针对热声热机系统回热器的数值计算，讨论了简单实用的简谐分析方法，并对热声制冷机中的热声板叠进行了数值计算与分析。

In the analysis resonant frequency, modal loss factor and harmonic response of structures are studied.

在分析中分别针对结构的固有频率、模态损耗因子以及简谐响应进行了研究。

Let be an n dimensional Riemannian manifold, the properties of harmonic functions on it are the interesting problems in geometric analysis.

在黎曼流形上的分析中，很大一部分是对流形上函数的调和性研究[1 - 2 ] ，并从中得到关于这些函数的性质。

We present quantum mechanical vibrational computations beyond the harmonic approximation from effective second order perturbative and variation perturbation treatments defined as static approaches, as well as vibrational analysis from density functional theory molecular dynamics trajectories at 300 and 600 K.

利用超简谐振动近似的有效二阶微扰法(VPT2)和变异微扰法两种静态方法，以及在300和600K下的密度泛函分子动态轨线振动分析方法进行量子力学的振动计算。

Harmonic analysis of the DongSha Island sea level data shows that the most significant tidal constituents in this region are the K1 (amplitude: 27 cm) and O1 (24 cm) diurnal tides and the M2 (14 cm) and S2 (5 cm) semidiurnal tides.

东沙岛的水位资料经由调和分析，结果显示主要的分潮为全日潮K1、O1以及半日潮M2、S2，其振幅分别为27、24、14、以及5公分。

The relationship between barotropic tidal currents and sea level were established for the first 45-day period using the transfer functions and harmonic analysis, and then carry the prediction for the second 45-day period. There is very good agreement between the observed and predicted semidiurnal tidal current, the rms error is less than 3 cm s-1. However, prediction on diurnal tidal current is rather disappointing, the rms error is about 19 cm s-1, suggesting strong baroclinic tidal component may have a significant contribution to the tidal current, which is not registered in the sea level records.

利用转换函数与调和分析两种方法，验证水位预报正压潮流的可行性，将观测资料分为等长的两段时期，藉由第一段时期约45天的正压潮流与水位的关系，预报下一段时期约45天的正压潮流，结果显示半日潮流的观测值与预报值大致符合，其均方根约在3公分/秒以下；但是全日潮流的观测值与预报值的差异大，其均方根最大可达到约19公分/秒，推测其原因为斜压潮分量大而影响潮流，但是不会对水位资料造成影响。

Theoretical analysis and computer simulation show that this method is effective in extracting harmonic signals provided that signal to noise ratio is not very low.

理论分析和仿真实验表明，在信噪比不太低的情况下，该方法对提取淹没在混沌和噪声背景下的谐波信号非常有效。

According to the computational stability analysis conducted to the linear term time difference scheme in simple harmonic motion equation, one new semi-implicit integration scheme also is designed. By adopting a kind of revised time-explicitdifference scheme to these linear terms still included in spectral model governing equations, this defect of spectral model only partly used in semi-implicit integrating scheme, can be overcome to some degree.

以简谐振动方程中线性项时间差分格式对其计算稳定性影响为理论依据，本文设计了一种新谱模式半隐式时间积分方案，此方案通过对一般谱模式求解框架中那些隐含的线性项采用了一种显式修正的差分格式，可有效克服其国际谱模式半隐式时间求积方案实质上只是部分应用了半隐式差分格式的问题。

It can be shown that the base function for the optimal analysis of PSV data is HSV eigen-function deduced from the proper or thogonal decomposition of the geomagnetic model data instead of the lower degree spherical harmonic function in common use.

统计学意义上最优的分析方法不是直接对PSV数据作低阶轴对称球谐分析，而是通过对地磁场模型数据的特征正交分析，得到表征HSV的特征函数，再用它们去分析PSV形式的数据。

They have quite a lot of work to do.

他们有许多工作要做。

Let us give you a more elaborate example of this process.

让我们给你这个过程的更多的详细例子。