Air Ram Intake Valve on the RV and Gas Chromatograph in the RV (image) University of California - Santa Barbara Share Print E-Mail Caption The top image shows: Air ram intake valve on the RV, shown crossing the Mississippi River. The bottom image shows: Gas chromatograph in the RV. Credit UCSB Usage Restrictions None Share Print E-Mail 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.