(a) Adhesion time fraction as a function of at a range of frequencies, (■) 15 Hz, 22.5 Hz, 30 Hz, 40 Hz, 70 Hz, 100 Hz, 15s0 Hz, showing a monotonic decrease. Inset: the adhesion time fraction as a function of the vibration strength at f = 30 Hz as the discharging mass is 100 g, 250 g and 400 g, in order to examine the independence of the adhesion time fraction on the discharging mass. (b) Effective flux, , as a function of the vibration strength is shown over the range of the vibration frequency, showing a nearly linear fashion. (c) Rescaled flux is plotted as a function of the vibration frequency f for different vibration strengths on a log-log scale. All rescaled curves approximately collapse together. The green dashed line 1/f is drawn to guide the eye.