A novel 3-arm spiral antenna structure is presented in this paper. This antenna similar to traditional two-arm or four-arm spiral antennas exhibits wideband radiation characteristic and circular ...

In addition to the device, Blackdot aims to “centralize” tattoo art by creating a marketplace in which artists receive a royalty each time their design is used by the machine.

Based on the dynamic analysis software RecurDyn, a six degrees of freedom mechanical arm system virtual prototype is built; Based on Matlab/Simulink, the six degrees of freedom mechanical arm control ...