crystals, including whether solvates and hydrates are included in the same definition: the FDA has defined co-crystals as "solids that are crystalline materials composed of two or more molecules in the same crystal lattice" with the interactions between them governed by "non-ionic interactions" [...
First, based on the broadband that is typical of blast waves, the peak frequency of the P-wave was obtained in the time–frequency domain, taking advantage of the difference in the propagation speed of the P-wave, S-wave, and the surface wave. Second, the phase difference between two ...