Fourier的例句大全

With dielectric constant distribution function of Fourier coefficients as a foundation, we calculated the arbitrary shape two-dimensional photonic crystals' bandgap structures by PWM ( Plane Wave Expansion Method).

有了介电常数分布函数的傅立叶展开系数做基础，用平面波展开法计算了任意形状二维介质光子晶体的带隙结构，求解带结构的主要方法是通过计算本征方程的特征根。

The new resin was characterized by Fourier transform infrared spectroscopy ( FT-IR), X-ray photoelectron spectroscopy ( XPS) and the specific surface area and pore size analyzer. The results implied that the tetrazolyl group was connected to the resin successfully. 2.

采用红外、X射线光电子能谱仪和比表面积及孔径分析仪对其结构进行表征，结果表明四唑功能基已被成功地接到树脂上。

Compared with other textural features such as gray level co-occurrence matrix, Laws texture energy, and Fourier power spectrum, higher classification rates were made by structure spectrum for classification of pits, scars and inclusions.

实验结果表明，结构谱方法具有较好的光照不变性，对麻点、夹杂、结疤等缺陷的识别率要高于灰度共生矩阵、Laws纹理能量、傅里叶功率谱等其他纹理分析方法。

Analysis on Texture Discrimination Performance of Moments of Local Fourier Transform Coefficients

局部傅里叶变换系数各阶矩的纹理鉴别性能分析

When designing the monitoring system, the author carries out simultaneously theoretical analysis and improvement on conventional radix 2 Fast Fourier Transform ( FFT), Split Radix FFT ( SRFFT), our algorithms can save 33% multiplications for DFT approximately as compared to the traditional algorithms.

基于分裂基的SRFFT算法实现离散傅立叶变换，较传统基2FFT算法节省33%的运算量，可提高运算效率。

We then emphasize from the theoretical principle and the experimental realization the efficiency of the quantum factorization by using the remainder function and discrete Fourier transform.

并着重从理论原理和实验实现这两方面说明利用余因子函数和离散傅里叶变换使这种量子算法对因子分解是有效的。

The Application of Fourier Method to the Theory of Partial Differential Equations

Fourier方法在偏微分方程理论中的应用

The theory of laser diffraction from capillary waves at a different angle of incidence is found from the theory of Fourier Optics, and the relation between the diffraction intensity and the angle of incidence is obtained.

利用傅立叶光学中正弦位相光栅理论分析了不同入射角的激光在毛细波上的衍射，给出了衍射光斑光强分布与入射角的解析关系。

In consideration of the radiation loss of a microstrip line, its propagating constant and characteristic impedance are extracted from time domain responses be means of Fourier ′ s transformation and the telegraph equation.

考虑到辐射损耗，借助Fourier变换和电报方程，从时域响应中提取微带线的传播常数和特性阻抗。

The effect of NiO content on the basicity of catalyst was investigated by using H2 TPD ( temperature programmed desorption), DRIFTS ( diffuse reflectance infrared Fourier transform spectroscopy), and CO2 TPD. The catalytic performance was tested and the amount of coke deposition was measured.

用H2-TPD（程序升温脱附），DRIFTS（漫反射红外傅立叶变换光谱），CO2-TPD等方法考察了NiO的含量对催化剂表面碱性的影响，并和反应稳定性以及抗积碳性能相关联。

Non-Fourier Temperature Response in a Plate Under Periodic Temperature Boundary Condition

平板在周期温度激励下的非傅里叶温度响应

And by means of Fourier infrared spectrometer, the glass transition temperature of the tester and transmission electron microscopy on the structure of polymer was characterized.

并借助傅立叶红外光谱仪、玻璃化温度测试仪、透射电镜等对聚合物的结构进行了表征。

Based on the analytical solution of heat conduction equation, an equation of temperature wave of the type of Fourier series was derived to predict the response of temperature at variable depths to ground surface condition.

通过热传导方程对土壤中的传热过程进行分析，得到傅立叶级数表示的温度波方程，用于预测不同深度土壤响应地表条件而产生的温度变化。

Deriving cloud motion vectors from high temporal resolution images based on Fourier phase analysis technique

基于傅立叶相位分析的卫星云图导风技术

Application of Fourier analysis of the dispersion effect to split Hopkinson pressure testing system and bar bar tensile impact testing system

傅立叶弥散分析在冲击拉伸和冲击压缩试验中的应用

In this paper, the Fourier method and corresponding code ( FFTDSP) for dispersion analysis in the bar is applied to the Split Hopkinson Pressure Testing System and the Bar Bar Tensile Impact Testing System.

将傅立叶弥散分析方法和程序（FFTDSP）应用于冲击拉伸和冲击压缩试验中，分析了输入杆和输出杆中波的弥散效应对试验结果的影响。

Solution of beams on tensionless Winkler foundation by Fourier series and method of successive substitution

用富氏级数及迭代法解无拉力温克勒尔地基上的梁

Fourier series solution of thick/ thin beam laid on elastic foundations and tensionless elastic foundations

弹性地基与无拉力弹性地基上深浅梁的Fourier级数解法

In this paper, the bending problem of rectangular thin plates with free edges laid on tensionless Winkler foundation has been solved by employing Fourier series with supplementary terms.

本文应用Fourier级数加补充项的方法求解了无拉力Winkler地基上自由边矩形薄板的弯曲问题。

Most magnetotelluric data processing methods make the Fourier transform of a segment record to get a power spectrum then to solve for tensor impedance element.

大地电磁资料处理方法大多数都是对一段记录做傅氏变换，构成功率谱后再求张量阻抗元素。