Triboelectricity and Piezoelectricity Based 3D Printed Bio-skin Sensor for Capturing Subtle Human Movements Mo Lv 10.25394/PGS.8048972.v1 https://hammer.purdue.edu/articles/thesis/Triboelectricity_and_Piezoelectricity_Based_3D_Printed_Bio-skin_Sensor_for_Capturing_Subtle_Human_Movements/8048972 This thesis present the fabrication of 2 types of soft wearable electrical devices, utilizing the 3D printing technique. The devices are capable to detect human heart pulse waves and sound waves for health evaluation and speech recognition. 2019-05-14 15:01:17 Piezoelectric Nanogenerator triboelectric generator 3D Printing heart pulse speech recognition performance Nanotechnology not elsewhere classified