Diane E. Scheponik is a Senior Engineer in the Core Application Group with Elliott Company, Ebara Group, in their Jeannette, PA headquarters. She has a B.S. degree (Petroleum Technology, 1980) from California University of Pennsylvania. During her 28-year career with Elliott Company, she has been involved with compressor selections, driver sizing, rotor dynamics, specification reviews and other aspects related to Application Engineering for new and rerated equipment, and has co-authored several technical articles.