(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 2. Build-up and decay phase of vibratory pulses. The first 15 and the last 15
cycles of a vibratory pulse (A) were analysed regarding cycle amplitude (B)
and cycle frequency (C). Line-plots, left y-axis: absolute values for
velocity (V) and cycle frequency (Cycle freq.). Open circles, right
y-axis: relative values (percentage of maximum of velocity
Vp-p, and main frequency MF, respectively).
Arrows indicate the cycle numbers where the 95% threshold of build-up and
decay is attained. Size of gap: 0–600 cycles.