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- S wave attenuation 横波衰减
- Influence of Acoustic Wave Attenuation on the Properties of Fiber AOTF[J]. 引用该论文 厉群;刘小明;李佟;金韬;周炳琨.
- The millimeter wave attenuation of expanded graphite is a comprehensive actions of scattering and absorption. 膨胀石墨蠕虫对毫米波的衰减为散射和吸收作用的综合结果。
- Wave attenuation properties of rectangular pontoon breakwater were analyzed with eigen-function expansion. 利用特征函数法对矩形浮箱式防浪堤的消浪性能进行分析。
- In this method, Stoneley wave attenuation from AC log is divided into two parts: attenuation through porous media and percolation attenuation through pore-fluid. 该方法把由声波测井数据得到的斯通利波衰减分为介质内衰减和孔隙流体渗流衰减两部分。
- E wave,A wave,E/A ratio,DT,IVRT,RFP,RFP/E,S wave,D wave,Vs/Vd,FVTIs,ARV and ARD/AD were detected in everyone. 对照组 2 2人在心尖四腔心切面测量E峰和A峰并计算E/A比值、E峰减速时间 (DT)、等容舒张时间 (IVRT)、彩色M型多普勒测量血流播散速率 (RFP) ,计算RFP/E。
- The tomographic images in different depths show that the P, S wave velocity perturbation orientates NW direction. 成像结果表明:不同深度的P波、S波速度扰动呈北西向展布特征;
- And the special phenomena such as the S wave splitting, the blind points of the S wave splitting and wavefront triplication are dearly observed. 而慢纵波在固相和流相中的相位相反,即慢纵波在流相中振幅大,而在固相中的振幅较小。
- The S wave velocity decrease slightly,and gener ally,first,its amplitude and energy decrease,then increase,and its center freque ncy remains the same. 在接近注满水时,出现特殊的高频初至小波,而S波速度略有减小,波幅和波谱能量则一般是先降后升,主频基本没有变化。
- Ultrasonic wave attenuation measure is an important method of researching the energy absorptance of rock. It relates with the variation of rock microcrack and is one of subjects to be researched continuously in rock area . 声波衰减是研究岩石能量吸收性质的主要方法,它与岩石内部微裂纹及其变化有着密切联系,是岩石领域需要深入研究的课题之一。
- It is also shown that there is a minimum shothole depth for given conditions including thickness and lithology of shot layer, low end frequency of effective signal, and wave attenuation steepness in time domain. 结果表明 ,对给定的激发层厚度、岩性、有效信号低端频率和波的时域衰减陡度 ,存在一个最小井深 Hmin。
- Fourier-transform-infrared(FTIR) and millimeter wave(MMW) are applied to study the ele- ctromagnetic waves attenuation by the aqueous foams. 摘要 采用傅里叶变换红外透射光谱法和毫米波反射截面及透射率法,研究了水基泡沫的电磁波衰减性能。
- Based on the S wave velocity structures of different paths and former data, we infer that the subduction of the Indian Plate is delimited nearby the Yalung Zangbo suture zone. 根据不同路径的 S波速度结构和前人的资料 ,我们认为印度板块的俯冲可能以雅鲁藏布缝合带附近为界
- The crack porosity and closed pressure obtained by the experim ent provided the basic data for understanding anisotropy of rocks, S wave splitt ing and crust dynamics. 实验得到的裂纹孔隙率和岩石裂纹的闭合压力,为了解岩石各向异性、S波分裂以及地壳动力学提供了基础数据。
- The thicker the shell of a warhead, the larger the attenuation exponential, and more promptly the peak pressure of explosive air shock wave attenuates with the distance. 结果表明,爆炸空气冲击波峰值随距离的衰减指数与壳体厚度近似成线性关系。
- She’s waving another bowl under my nose, the latest in a long line of bowls of fragrant, chickeny liquid. 她又把一碗东西搁在我鼻子底下示意我吃,这是数碗菜肴后的最后一道,一碗很香的。。。鸡汤。
- C VSP logging data contains plenty of information about seismic waves such as P waves and converted S waves. VSP三分量测井记录含有丰富的地震波场信息 ,除纵波外还有转换横波资料。
- However, radio waves attenuate as they move out from the transmitting antenna. 然而,无线电波随者从传送的天线向外移动而衰减。
- Velocity|related indices derived from MPD including peak velocity of S wave, E wave and A wave, A/E and MVG (myocardial velocity gradient) were applied for the detection of WMA. For evaluation of WMA, left ventricle was divided into 20 segments. 用于室壁运动分析的 MPD速度指标为 S波、E波、A波的峰速度 ,A/ E比值及跨壁速度梯度 (MVG)。
- Chester Equations, which have closely relations with thecharacters of the laser-remelting, and further analyzed theequations in microscopic by phonon theory and the travelingwave solutions of Chester Eq. s wave solved by means of solidquantum theory. Chester方程,并用声子理论对上述方程进行了微观分析,借助固体量子理论导出了该方程的行波解。