Diagram (ERD) is applied to visually and clearly represent a structure of a business database. The main components of ERDs are: entity, relation and attributes. An entity is a class of similar objects in the model, each entity is depicted in the form of rectangle and has the name ...
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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 ...
3. Feature Construction and Extraction As can be seen from Figure 2, with the increase of compression times, the AAC audio scale factor will be relatively reduced. With this property, the difference between the audio recompressed audio and the original audio scale factor is used as a feature ...