纵波

The wide-azimuth 3D3C seismic exploration takes the advantages of both wide-azimuth P-wave exploration and converted-wave exploration. This technique can be well applied to solve the exploration problem of deep-buried compact fracture gas reservoirs in western Sichuan.

宽方位三维三分量勘探综合了宽方位纵波勘探和转换波勘探二者的优势，对于解决川西深层致密裂缝性气藏的勘探开发问题具有良好的应用前景。

Two dominate variation trends are distinguished in the data plots of compressional-wave velocity versus Possion ratio, indicating the effects of mud content and calcite cement on the elastic properties of sandstone samples. In each change trend, with the rock texture transfering gradually from grain-supporting to matrix-supporting with increasing mud and calcite cement content, the propagation of elastic wave also changed from grain-to-grain contacts to rock matrix, which resulted in the measured data illustrating extremely different tendency. It helps utilize the physics properties of reservoir sandstone to extract rock texture and diagenesis properties in the research area.

样品在纵波速度－泊松比交汇图中表现出两种主要变化趋势，分别对应泥质与钙质胶结物的影响；在每个变化趋势中随泥质含量与钙质胶结物含量的增加，岩石结构从颗粒所构成的骨架支撑逐渐表现为基质支撑，弹性波能量的传播也从通过颗粒接触边界转变为通过岩石基质传播，这是使砂岩样品测试结果表现出两种截然不同变化趋势的主要原因，为利用岩石物理特性从地震资料中提取岩石结构、沉积与成岩特征的信息提供了依据。

Travel time in WC anvils was measured using pulse reflect method at room temperature and under cell pressure up to 3.0GPa.Experimental results indicate that the travel time in the WC anvils decreased linearly with cell pressure.

在常温、实验压力为0～3GPa条件下，利用脉冲反射法测量了纵波在碳化钨压钻中的走时，结果发现，随实验压力升高，碳化钨压砧的走时线性减少。

Part two : Analyzed the program of dynamic signal matching, expounded the pile wave analysis program by the method of characteristics, characteristic connection detruding, the problem of initial value or edge value, piles calculating model and pile-soil system, indicated the lack of the traditional high strain dynamic signal matching program.

第二部分：对实测曲线拟合法进行分析，阐述了弹性体细长杆中纵波传播的特征线解，特征关系的推导，初值与边值问题，桩的计算模型，桩侧土模型，桩尖土模型，指出传统拟合分析程序的参数不够全面的缺点。

The paper establishes an appropriate model of vibration system composed of horn and gear. The transmission of ultrasonic is changed from longitude wave into transverse wave; the gear vibrates in flections mood and obtain larger vibration displacement in the grinding region.

本文提出了一个适用的振动系统模型，由变幅杆和齿轮组成一个复合振动系统，将超声波的传递方式，由纵波变为横波，齿轮作圆盘弯曲振动，使齿轮的磨削区域得到较大的振动位移。

For frequency information fluid identification technology:the basic theory of fluid identification based on frequency information has been introduced,for inner and external factor affecting frequency,some steps have been proposed to attain reserved amplitude and frequency analysis data with high resolution,high S/N ratio;through the comparison of time-frequency analysis method, the high accuracy time-frequency analysis method has been selected to extract time-frequency attributes;the analysis method flow of common single frequency fluid identification has been proposed,according to the data of full frequency band,several anomaly zone modes of common single frequency attribute have segregated; incorporating converted wave and compression wave,fluid identification method based on PS wave combined time-frequency analysis has been proposed;the AVO property of various fluid type in frequency domain has been studied;the generalized fourier analysis method,Proni absorption filter has been introduced,and researched for anti-noise and for the seismic processing interpretation flow.The above technology have been applied to fluid identification of organic reef in WBT area in the east of Sichuan and fluid identification of clastic rock in GUANGAN area in the middle of Sichuan,the results show that the above methods are effective.

基于频率信息的流体识别技术方面：介绍了利用频率信息流体识别的基本理论，针对影响频率的内、外在因素，提出一些针对措施，以获得高分辨率、高信噪比的保幅、保频分析数据；通过时频分析方法的比较，选取高精度的时频分析方法提取时频属性；提出共单频属性进行流体识别的分析方法流程，结合全频带数据，分出几种共单频属性异常带模式；联合转换波资料和纵波资料，提出基于纵横波联合时频分析进行流体识别方法；研究了频率域内不同流体类型AVO现象；引进一种广义傅立叶分析方法：Proni吸收滤波，研究其抗噪性以及进行地震处理解释的流程；将这些技术应用川东北五百梯区块进行生物礁储层流体的识别和川中广安陆相碎屑岩的流体识别，取得较好的效果。

The results show that isoclines of additional stress field of composite foundation take on the shape of saddle.

根据对大量附加应力数据的分析，得出附加应力在地基土中的传递规律：与荷载平行时，附加应力传递规律与纵波传播规律类似。

The results show that the v L curve obtained by new arrangement mode through measuring boreholes parallel and perpendicular to the strata has a very good regularity and overcomes the flaw of the v-L curve disorder change caused by conventional arrangement mode.

测试结果表明：顺层和垂直于岩层的测孔布置方式获得的纵波波速v与孔深L的曲线规律明显，克服了常规布置方式带来的v-L曲线无序变化的缺陷，可容易确定出倾斜薄层弱结构松动圈范围。

The results show that the v p- L curve obtained by new arrangement mode through measuring boreholes parallel and perpendicular to the strata has a very good regularity and overcomes the flaw of the v p- L curve disorder change caused by conventional arrangement mode.

测试结果表明：顺层和垂直于岩层的测孔布置方式获得的纵波波速 v p与孔深 L 的曲线规律明显，克服了常规布置方式带来的 v p- L 曲线无序变化的缺陷，可容易确定出倾斜薄层弱结构松动圈范围。

In highly polar semiconductors like GaAs and ZnSe, the electrons will lose their excess energy and thermalize with the lattice predominantly by emission of LO phonons.

在像GaAs和ZnSe这样的极性半导体中，电子主要通过释放纵波光学声子失去多余的能量，与晶格达到热平衡。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。