频率曲线

To analyze the response of pavement structure under moving loading, a quarter vehicle model with single freedom degree and unevenness model are established. The dynamic loads are calculated through combining different pavement conditions and speed. When the incentive frequency which is passed to vehicles by the road is close to its own vibration frequency, vehicles will produce the greatest dynamic load.

为了分析路面结构在行车动荷载作用下的力学响应，建立了单自由度1/4车辆模型和以正弦曲线模拟路面不平整度的模型，通过将不同路面状况和行车速度的组合，分析车辆在各情形下所产生的动荷载，发现路面传给车辆的激励振动频率接近车辆自身振动频率时，车辆对路面产生的动荷载值最大。

Different biases can result in the opposite phase shifts of the impedance with respect to the applied signal. Neutral gas pressure affects the magnitude of the impedance, but does not change the shape of the frequency response curve. In addition, the position of the grid inside the vacuum chamber has little effect on the impedance.

结果显示栅网上的直流偏压对阻抗的影响很大，不同偏压可以使阻抗的频率响应反位相，气压对阻抗的大小有明显影响，但一般不改变频率响应曲线的形状，栅网的位置对阻抗几乎无影响。

Based on the equivalent circuit model, a method which can calculate coupling coefficient of microstrip resonators by adding the electric-wall and magnetic-wall in the symmetry plane of the coupling structure has been put forward.

通过等效网络的理论分析，提出利用传输系数幅度曲线和相位曲线上的六个奇异点对应的谐振频率计算耦合系数的方法，并用HFSS建立模型，通过全波仿真计算验证了上述方法。

This paper applies Fourier series to detach the fundamental waves phase, adopts the curve fitting to the frequency of the maximum spectrum amplitude, utilizes the sine wave parameters of law to the phase angle of this frequency, calculates δvalue and tanδvalue.

本文以傅立叶级数分离基波相位的方法为依据，通过曲线拟合求频谱幅值最大值处的频率，利用正弦波参数法求该频率处的相位角，从而计算出δ值和tanδ值。

This paper introduces eight methods of tlme-frequency analysis, such as Hilbert transform, Hilbert-Huang transform, sine curve fitting, Ricker wavelet matching, short time Fourier transform, wavelet transform, S transform and Cohen methods, This paper explains the merits and defects of those methods from the time resolution, frequency resolution and the adaptive ability of multi-frequency signals.

本文介绍了Hilbert变换、Hilbert—Huang变换、正弦曲线拟合、雷克子波匹配、短时傅立叶变换、小波变换、S变换以及Cohen娄这八种方法，并从时间分辨率、频率分辨率，以及对多频率成份信号适应能力等各方面阐述了各种方法的优缺点，对其中的一些方法结合了理论记录进行了试算，进一步阐述了这些方法的长处和不足之处。

This paper introduces eight methods of time-frequency analysis,such as Hilbert transform,Hilbert-Huang transform, sine curve fitting ,Ricker wavelet matching,short time Fourier transform,wavelet .

本文介绍了Hilbert变换、Hilbert-Huang变换、正弦曲线拟合、雷克子波匹配、短时傅立叶变换、小波变换、S变换以及Cohen类这八种方法，并从时间分辨率、频率分辨率，以及对多频率成份信号适应能力等各方面阐述了各种方法的优缺点，对其中的一些方法结合了理论记录进行了试算，进一步阐述了这些方法的长处和不足之处。

By analyzing the equivalent network model, a new method with the resonant frequency of six strange points on the amplitude plot and phase plot of transmission coefficient S21 for computing the coupling coefficient has also been proposed in the thesis.The full-wave EM simulation has verified validness of the method by utilizing the models, which has been established with HFSS.

通过等效网络的理论分析，提出利用传输系数幅度曲线和相位曲线上的六个奇异点对应的谐振频率计算耦合系数的方法，并用HFSS建立模型，通过全波仿真计算验证了上述方法。

Based on the relation betweenthe current density and the activation energy, the glass-phase exponent 〓the relaxation of current density in 〓times window, the criticalcurrent in a certain criterion of electric field as a function oftemparature infixed field or field in fixed temprature were calculated.

利用交流磁化率测量，得到了Hg-1201和Hg-1223样品的不可逆线，同时系统地研究了交变磁场频率和振幅对交流磁化率损耗峰的影响，并用非线性磁通扩散的模型解释了这些实验结果，从中推得与温度、直流场和电流密度有关的磁通跳跃激活能，由与电流密度有关的激活能推出描述玻璃相的指数μ，在10-5秒～10-2秒时间内的电流密度弛豫，E-j曲线，一定电场判据下的临界电流密度与磁场和温度的关系，从E-j曲线可以看出确实存在&零电阻电流&的玻璃相。

Based on an analysis of the frequency sounding curve of the CSAMT method (controlled source audio-frequency electromagnetic method), the authors have found that the curve intersects the curve in the transition region.

通过对卡尼亚视电阻率法频率测深曲线的分析，发现卡尼亚视电阻率与远区电场分量E的视电阻率曲线在过渡区出现相交的现象。

Based on the hypothesis of Cole-Cole model, a new recursive inversion method is used in the inversion of complex-resistivity sounding curves over multi-layered earth with Schlumberger array without electromagnetic couping.

在Cole Cole模型假设的基础上，用一种新的递推反演算法对无电磁偶合影响时的水平层状大地对称四极装置复电阻率测深曲线进行反演，得出了层状大地上视电阻率、视时间常数、视频率相关系数、视充电率的视真频参数测深曲线。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。