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Table-tennis umpiring presents many challenges where technology can be judiciously applied to enhance decision-making, especially in the service facet of the game. This paper presents a system to automatically detect and track the ball during table-tennis services to enable precise judgment over their legitimacy. The system comprises a suite of algorithms that adaptively exploit spatial and temporal...
This paper demonstrates the use of tungsten as a viable, low cost catalyst for Metal-assisted Chemical Etching (MaCE) of silicon to create high aspect ratio nanostructures in silicon. The effect of etchant composition and etching time is reported along with Scanning Electron Microscope (SEM) and Atomic Force Microscopy (AFM) images confirming that tungsten acted as a catalyst for MaCE.
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