Sometimes you need random numbers — and properly random ones, at that. [Sean Boyce] whipped up a rig that serves up just that ...

Abstract: To achieve the visualization and quantitative analysis of electric fields for direct bond copper (DBC) substrate, the characteristics of square wave excitation electroluminescence (EL) are ...

This opens up the possibility of using an acoustic wave generator to generate sound waves tuned to a particular size and frequency that would enhance (or equally suppress) surface waves. Enhanced ...

multifrequency simultaneous excitation system for Lamb wave-based damage imaging. First, a low-cost bandpass filter circuit module is used to divide the excitation signal into distinct frequency ...