When a tank is subjected to vertical forced excitation, Faraday waves appear at the surface of liquid contains. In this paper, we consider effect layers polystyrene beads placed on isopropanol undergoing low frequency sinusoidal excitation. Beads remove most low-frequency resonances and reduce amplitude for remaining ones. The formation with observed come from small gaps in bead layers. A suffi...

This paper presents measurement and analysis of the dynamic response of a five-story building to very-high frequency excitation (> 100 Hz) from blasting vibrations originating from a contiguous excavation of rock. Velocity response measurements, in the rock and on the structure, were employed to calculate time correlated dynamic displacement response of the building to blasting. Time correlated...

Central neural networks operate continuously throughout life to control respiration, yet mechanisms regulating ventilatory frequency are poorly understood. Inspiration is generated by the pre-Bötzinger complex of the ventrolateral medulla, where it is thought that excitation increases inspiratory frequency and inhibition causes apnea. To test this model, we used an in vitro optogenetic approach...