Unplugged Powered Suit (IMAGE) Hiroshima University Caption The UPS consists of three parts: PGM (drive part), pump (air pressure for flexing artificial muscle), and pipework (transmission). Credit Hiroshima University Usage Restrictions This image may only be used with appropriate caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.