| 1. | Amplitude spectrum shaping
振幅谱整形 |
| 2. | Determination of elastic constants of cylindrical solidsusing backscattering amplitude spectrum
用超声背向散射谱定征柱状固体的弹性常数 |
| 3. | Calculation of stress amplitude and stress amplitude spectrum coefficient for steel structure of tower crane
塔式起重机钢结构应力幅及应力幅谱系数的计算 |
| 4. | Used fourier transforming the nuclear logs , its vertical resolution can be achieved from analyzing the changes of amplitude spectrum slope
摘要对核测井曲线进行付氏变换，其纵向分辨率可以从分析振幅谱斜率变化中获得。 |
| 5. | Additionally , features of fourier amplitude spectrum and variation of duration of ground motions with depth in treasure island were discussed
最后，讨论了土层基岩场地上台阵地震动的傅立叶幅值谱和地震动持时沿深度变化的特点。 |
| 6. | Since it is hard to choose time window in practice and analyze the error quantitatively , there are usually deviations in the evaluation of amplitude spectrum
由于在实际运用中，以傅里叶变换相关的算法的时窗问题，难以选择好时窗长度，而且无法定量分析时窗长度产生的偏差，因而会使振幅谱的估算产生偏差。 |
| 7. | The paper expounds a way to get stress amplitude spectrum of main girders of overhead traveling crane through computer simulation combining virtual prototype technology and computer random simulation
摘要本文将虚拟样机技术与计算机随机模拟方法结合，探讨了通过计算机仿真的方法获得桥式起重机主梁应力幅谱的基本途径。 |
| 8. | The algorithm used in the past was usually based on fourier transform , but there are clearly limitations in the method , because the seismic amplitude spectrum that it evaluated is the function of time windows
如果所选时窗过短，振幅谱会与变换窗函数褶积，失去频率的局部化特徵，而且过短的时窗会使子波的旁瓣呈现为单一反射的假像。 |
| 9. | Drawing on a multifunctional internal friction instrument and dma , we tested the damping capacity of all the heat treated samples completely , and then got the damping - frequency spectrum , temperature spectrum and strain amplitude spectrum
然后，在多功能内耗仪和dma上对各热处理态试样的阻尼性能进行了全面测试，获得了内耗频率谱、温度谱和振幅效应谱。 |
| 10. | And based on it , a new texture classification method in presented that utilizes the information of the dpft serialized amplitude spectrum in different scales and orientations as texture features , and has good performance in texture classification
提取纹理的归一化dpft幅度谱在不同方向和尺度上的信息作为纹理特征，应用于纹理分类，取得了良好的分类效果。 |
