Titlebook: Nondestructive Characterization of Materials IV; Clayton O. Ruud,Jean F. Bussière,Robert E. Green Book 1991 Springer Science+Business Medi

让空气进入

与野兽博斗者

Measurements of Attenuation and Dispersion in Multi-Phase Materials Using Ultrasonic Point-Source/Poely. The frequency dependence of the attenuation and dispersion in the multi-phase materials was obtained by a single measurement and Fourier analysis. Mortar and paste were found to be less attenuative and dispersive than granite and concrete.

Adrenaline

Glaci冰