Vibrotactile stimulus duration threshold for perception of pulse to vibration transition Scientific Reports Fundamentals of Vibration Analysis Application of biomimetic tongue substrate to investigate the role of friction and vibration in sensory texture perception ScienceDirect Mechano acoustic sensing of physiological processes and body motions via a soft wireless device placed at the suprasternal notch Nature Biomedical Engineering Hydrogel In Tape Electronic Tongue ACS Applied Electronic Materials PDF) Fundamentals of Vibrations Leonard Meirovitch