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- Earthquake wave spectrum 地震波谱
- Except this, we found that the average results of structure under three earthquake waves are dower with the results of spectrum analysis. 4.;在对结构进行弹性动力时程分析时，结构在人工波作用下的反应要大于实际波，且三条地震波作用下的平均值与谱分析结论相吻合。
- Strong earthquake wave, it go the rounds whole earth according to imperceptible speed and method. 强大的地震波，以人们感觉不到的速度和方式传遍整个地球。
- A boundary of the model's wave spectrum is obtained by the use of self nested method. 利用自嵌套的方式,提供模式波谱边界条件;
- Venation wave spectrum analysis finds out shape-structure change of mid-frequency signal fluctuation. 脉络波谱图分析查明了中范围（频率）信号波动的形态结构变化。
- That day afternoon, the earthquake wave of southwesterly direction affects quickly the countrywide other area that includes Beijing inside. 那天下午，来自西南方向的震波迅速波及到包括北京在内的全国其他地区。
- Tannuri E A, Sparano J V, Simos A N,et al.Estimating directional wave spectrum based on stationary ship motion measurements. 马志良;罗德涛;主编.;近海移动式平台
- Taking the dam foundation grouting test effect of the Daliuhe WRPP as an example, the author mainly introduced the application and effect of the earthquake wave CT technology. 以大柳树水利枢纽坝基灌浆试验效果检测为工程实例,重点介绍地震波CT技术的应用和效果。
- Using the above relations, this paper has compared several wave spectrum formular with actual spectrum, and the result is satisfactory. 同时用上述关系式对目前工程上常用的几种海浪谱计算公式进行了对比分析，并与实测谱进行了比较，结果表明所得关系式与实际拟合良好。
- Compared with classic wavelet technique, the proposed method can adjust not only the low frequency components of earthquake wave, but also the high frequency components. 和传统的小波分析相比，该方法不仅对地震波低频分量进行精确调整，还可对其高频成分实现类似的调整。
- Through feature studies of earthquake wave dynamic of double-eventsequence, the possibility to distinguish foreshocks of second main shock hasbeen proposed in this paper. 本文通过对双震型地震序列的地震波动力学特征的研究，提出了识别双震中第二主震前震的可能性。
- This paper studied amplitued and decay law of earthquake wave, Contribution in reducing vibration and application of frequency in safe criterion of detonate vibration. 本文通过大量分析，认识爆破地震波的振动幅值与频率组成的衰减规律、频率在降震中的作用，及其作为爆破振动的安全判据。
- By analyzing the reflectivity spectrum and reflection wave spectrum of thin beds, we put forward a new method for thickness determination of the thin beds. 作者通过研究地层厚度变化对地层本身的反射系数谱及反射波频谱的影响规律,寻找到了一种新的计算薄层厚度的方法。
- Taking the dam foundation grouting test effect of the Daliuhe WRPP as an example,the author mainly introduced the application and effect of the earthquake wave CT technology. 以大柳树水利枢纽坝基灌浆试验效果检测为工程实例，重点介绍地震波CT技术的应用和效果。
- The test result indicate that it is able to competent at wave simulation of sea wave spectrum for shipmodel test,and can simulate different wave spectrum in different request. 实验数据的分析结果表明，该造波机完全可以胜任船模耐波性试验的要求，并且还可以根据需要模拟不同的海浪谱，模拟精度达到了实验的要求。
- The transfer of earthquake wave in ground soil is related to soil characteristic, excitation magnitude, etc.. It is not always amplificatory, but likely to be filter and isolation. 表明地基土层对地震动的影响与场地土特性、地震动大小等有关，不一定是放大作用，也可能起滤波和隔震作用。
- In this paper, we present the basic principle of dual flap wave-maker and the producing of driving signal firstly, and then the influence of two distinct FFT methods with the same wave signal to the primary parameters of wave spectrum. 摘要叙述了采用双摇板造波系统的基本思想及双摇板造波信号的生成，并分析了同一波浪信号用不同谱分析法对所得主要谱参数的影响。
- Three man-made earthquake waves are composed with the exceedance probability of 10% and 3%. 3．根据相关资料合成了100年超越概率为10%25和3%25的各三条人工地震波。
- Conclusion High-quality wave spectrum depends on high uniformity of magnetic field.The value of full width at half maxium is an important factor that reflects the uniformity of magnetic field. 结论 获得高质量的波谱，需要较高的磁场均匀度，而半高宽是反映均匀度的一个重要指标。
- Through analyzing the data of a series of shaking table tests of dynamic soil-structure interaction (SSI) system with soft to hard soils, the transfer of earthquake wave in various ground soils is in vestigated. 摘要通过对地基土质从软到硬的三个阶段结构－地基动力相互作用体系振动台模型试验所取得数据的对比分析，讨论了不同土性地基对地震波传递的影响。
