To demonstrate the proof-of-concept, they produced foam in the shape of a balloon dog. They also described ... items such as motorcycle or football helmets, car bumpers or armor. He also noted that 3D ...

In a recent paper, [Leo N.Y. Cao], [Erming Su], [Zijie Xu], and [Zhong Lin Wang] describe how a functional TENG can be produced on a standard desktop 3D printer ... TENGs can be printed in ...