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。
Attenuation of elastic wave amplitude in rock is affected by its temperature and pressure, filled fluid properties, fluid saturation, rock composition and structure, etc.
弹性波振幅在岩石中的衰减程度受其温压、所含流体性质、流体饱和度、岩石组分、结构等因素的影响。
Methods The color and transparency of different concentration phantoms were observed. Properties including density, acoustic speed and acoustic attenuation of PAA gel phantom were measured.
方法观察模块浓度的不同所致颜色与透明度的变化，并对PAA模块的声学特性包括密度、声速及声衰减进行测量。
The transmission and attenuation rule of the radar pulse wave in different dielectric are analyzed by analyzing the electrical properties of the geotechnical dielectric.
通过对岩土介质的介电特性分析，分析雷达波在不同岩层中的传播与衰减规律。
The acoustical properties and specific heat of sample at low temperatures were studied, and the temperature dependences of modulus, sound attenuation and specific heat were obtained.
对其低温的声学和比热容性质进行了研究，得到了样品模量和声衰减以及随温度变化的规律。
The results show that the ultrasonic attenuation properties are determined by the pore structures of Al alloy foam.
结果表明：泡沫铝合金的超声衰减性能决定于其孔结构；
Feng Qing. Research on the attenuation law of interfacial properties of carbon fiber reinforced composites under typical hygrothermal conditions. Beijing: Beihang University, 2010.
冯青。典型湿热条件碳纤维复合材料界面性能衰减规律研究。北京：北京航空航天大学，2010。
Ultrasonic attenuation properties of porous and cellular Al alloy foam with spherical pore;
研究了闭孔泡沫铝合金孔结构参数对其超声衰减性能的影响。
Ultrasonic attenuation properties of porous and cellular Al alloy foam with spherical pore;
研究了闭孔泡沫铝合金孔结构参数对其超声衰减性能的影响。
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