wave attenuation

The attenuation of temperature wave in humid sand layer on an evaporation cooling roof differs from that in dry sand layer in essence.

有含湿砂层存在的被动蒸发冷却层屋面的温度波衰减，在本质上不同于干燥状态情况。

Study on coefficient k-value of characteristic of coda wave attenuation in shock tendency estimation

震后趋势判断中尾波振幅衰减特征k值的研究

The upper crust of the Altun orogenic belt has a high average Q value ( about 500). It is likely caused by shallow depth of crystalline basement, outcrop of basement rocks, and slow attenuation of seismic wave.

阿尔金造山带上地壳的平均Q值较高（约500），这可能由于结晶基底埋藏较浅，基岩出露，因此地震波在此处传播能量衰减较慢所致。

Study on the attenuation of temperature wave of evaporation layer on a passive cooling roof

屋面被动冷却蒸发层温度波衰减

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.

In addition, the radar target cross section and surface wave propagation attenuation characteristics are also related to the radar operating frequency.

除此之外，雷达目标散射截面积和地波传播衰减特性也和雷达工作频率有关。