Manila Journal of Science 10 (2017), pp. 114-125

Surface Analysis of Silicon (100) Wafer After Contact Electrification Using Kelvin Force Microscopy

Abstract

Contact electrification was demonstrated on Si (100) wafer, and surface charge images at submicron scale were analysed using Kelvin force microscopy (KFM). Potential map images have shown carpet-like patterns on the (100) plane of Si wafer. Individual potential spikes that appeared on the surface are indicative of the presence of charges arising from contact electrification. Read More

Feature Extraction of a Synchronized Swimmer from Underwater Videos

Feature Extraction of a Synchronized Swimmer from Underwater Videos

Abstract

Vision-based feature extraction of a synchronized swimmer doing figures was done in the hopes of correcting and improving a synchronized swimmer’s ability to do figures. Extracted feature through image processing techniques plays an important role in understanding the synchronized swimmer’s body kinematics and dynamics. In gathering data, two cameras were used to video capture the swimmer’s movements. One was stationed at a calculated distance above the water, and the other camera was placed underwater directly above the other camera. Read More