| 1. | Attenuation discipline of stress wave in pile and it ' s application in integrity test
桩基完整性检测中桩身应力波衰减规律及其应用 |
| 2. | And then the paper validates the suitableness of the stress attenuation in the area of shock wave
随后对获得的应力波衰减方程在冲击波作用范围的适应性进行了验证。 |
| 3. | ( 4 ) the correlation property between the distribution of attenuation factor and that of the group velocity is indicated , in this study
( 4 )研究结果显示，在频率域内，面波衰减系数分布与群速度分布具有一定的相关性。 |
| 4. | ( 2 ) calculating the gridded rayleigh wave attenuation factor y and group velocity . the lsqr algorithm is used to inverse the attenuation factor and group velocity under 4 ? x4 ? gridding and 2
( 2 )进行rayleigh波衰减系数、群速度网格化纯路径衰减反演计算，得到网格单元纯路径衰减系数和群速度分布结构。 |
| 5. | Characteristics of attenuating and absorbing of super wideband radar surface wave by means of radar absorbing coatings as well as radar absorbing coatings combined with frequency selective surfaces are studied and then reported here
研究了雷达吸波涂层对宽频段雷达表面波衰减吸收的规律以及频率选择表面与吸波涂层相结合的复合吸波涂层对宽频段表面波衰减吸收的规律。 |
| 6. | The experimental result shows that the pressure wave near the outside of the filter tubes attenuated fast in the back pulse jetting , and the pressure wave transited evenly in the filter after it went ayay from the wall of the filter tubes for some distance
实验结果表明，在脉冲反吹时滤管外附近区域的压力波衰减较快，而离滤管壁一定距离后压力波则在过滤器内均匀传播。 |
| 7. | Generally speaking , the high group velocity and low attenuation factor and high qr in the same area , but relatively low group velocity and high attenuation factor and low qr in the same area in china is the general distribution
在不同周期，面波衰减系数或品质因子在整个中国大陆区域分布是不均匀的；总体表现为高群速度分布的区域呈现高丛和低衰减系数、低群速度分布的区域呈现低丛和高衰减系数分布的特点。 |
| 8. | By using the attenuation property of the rayleigh surface wave to invert the quality factor of crust and upper mantle , this paper yields the s - wave quality factor 3d structure of crust and upper mantle of china , and the viscidity structure of this area as well
本文主要通过rayleigh面波衰减反演地壳上地幔s波品质因子q _ ，建立了中国大陆地壳上地幔s波品质因子全三维结构。探讨了中国大陆区域地球内部粘弹性结构。 |
| 9. | This is of very important significance to understand the material property and geodynamic of corresponding area , , the surface wave attenuation mechanism and the inversion algorithm of attenuation and s - wave quality factor are discussed systemically in this paper . some important fruits and understanding are resulted from the the crust and upper mantle tomography of china . ( 1 ) calculating of the rayleigh surface wave attenuation factor y
本文首先探讨了面波衰减的机理，对面波衰减和s波品质因子q _反演的计算方法进行了系统的研究，并对中国大陆地区地壳上地幔q _三维结构进行层析成像，取得了以下重要成果： ( 1 ) rayleigh面波衰减系数计算。 |
| 10. | According to these accomplishments , several techniques are expounded emphatically in this paper , including 3d refraction statics , coherent noise suppression by prestack wave field separating ( prestack fx noise attenuation ) , 3d prestack multiple domain random noise attenuation , multiples attenuation , nmo of unsymmetrical hyperbola , dynamic replacement of wave equation , surface - inconsistent residual static , super bin stacking , poststack depth migration and prestack depth migration . all the techniques have been applied in seismic processing of 2d , 3d and wide - line profiling and obtained good results
本文根据项目组研究成果，重点闸述了三维折射波静校正技术，叠前波场分离相干噪音压制方法(叠前fx去噪) ，叠前三维多域随机噪音衰减技术，多次波衰减技术，非对称双曲线动校正技术，波动方程动态替换技术，非地表一致性的剩余时差静校正技术，超面元迭加处理技术，叠后深度偏移处理，叠前深度偏移处理等。 |
