波函数

The method uses expansion in terms of scaling functions to approximate the axial field component and transforms the field equation into a matrix equation by applying a variational formulation.

在该方法中，用尺度函数把场分量近似为级数，通过变分公式把波导问题化为矩阵方程。

It is convenient to calculate derivative in wave number space using the inbuilt FFT function in Matlab.

利用Matlab内建的快速傅氏变换函数可以方便地在波数域计算重磁异常导数。

The indicator element (2) is designed as a waveguide panel, wherein light beams propagate with total reflection and get outcoupled therefrom with a diffractive outcoupling system (2u), such as a grating structure or the like, which is configured as an indicator pattern, for producing an indicator pattern (2a) activable in the indicator element (2) by the action of light, such that divergent recesses and/or grooves of various sizes and/or shapes constitute divergent local gratings of various sizes and/or shapes, such as multi-shaped and/or binary pixels and/or units, the filling factor, shape, profile and/or size thereof being optimized in such a way that the diffraction efficiency is a function of place.

把指示元件(2)设计成波导板，其中光束以全反射方式传播并且从那里通过构造成指示图案的衍射外耦合系统(2u)、如光栅结构等得到外耦合，用于在指示元件(2)中产生可由光作用激活的指示图案(2a)，使得各种尺寸和/或形状的分散的凹口和/或槽纹构成各种尺寸和/或形状的发散的局部光栅、诸如多形状的和/或二元像素和/或单像素的，所述局部光栅的填充系数、形状、轮廓和/或尺寸可以以这样的方式优化，使得衍射效率是位置的函数。

It is shown that radiation impedance is a function of the product of wave number and side length,the sound power is greater and the adnexed mass is smaller in the higher frequency than those in the lower one respectively.

结果表明，方形活塞的辐射阻抗是波数和活塞边长乘积的函数，系统在高频段向外辐射的声功率比低频段大，高频段同振质量比低频段小。

As one of the leading branches of the modern statistics, the riouparametric regression analysis is widely applied to explore the relationship between the the response variable y and the covariable A'.

对于非参数回归人们提出了许多估计方法，如核估计，局部多项式估计，光滑样条估计，级数估计(傅里叶级数估计，小波级数估计)等。这些方法本质上讲都是局部估计或局部光滑，当回归变量X为一维变量时，非参数回归函数用这些方法一般都能得到很好的估计。

Through the present study, the velocity structure function based on locally averaged turbulent structure is proved to agree with Harr wavelet transform.

在研究过程中，验证了基于湍流结构局部平均概念的速度结构函数与Harr子波变换的一致性。

Therefore, the exact relation between the unbalanced input voltage and the noncharacteristic harmonics of the output voltage in the 12-pulse rectifier system is obtained. In addition, the relation between the input current and the imbalance of the input voltage is obtained, which could help to choose the filter elements and exactly analyze the characteristics of the no controlled rectifier circuit.

利用精确的开关函数，推导了多脉波整流系统输入不平衡电压与输出电压非特征谐波的精确关系，进而得到电阻、电感负载时系统输入电流与输入电压不平衡度的关系，为精确地选择滤波元件做了有意义的探索。

On the other hand, the energy growth of the plane standing wave is calculated according to the nonmodal stability theory. The phenomenon of energy transient growth is discovered.

通过非模态稳定性理论，计算了表面电荷存在时平面驻波的能量增长函数，发现了能量瞬时增长现象。

In this work,a signal process method for NQR signals is presented,which is based on wavelet transform and specially designed for the detection of pentaerythritol tetranitrate with NQR.

为提升NQR信号信噪比，根据NQR信号的特点，提出了一种基于改进阈值函数小波变换的NQR信号去噪方法。

In chapter 5, we shall consider biorthogonal multiwavelets systems with multiplicity 2r associated with Hermite interpolation refinable functions.

在第五章，主要研究对应于Hermite插值函数的2r重双正交多小波系统。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。