Energy Collaborative - 1988 Rubin, E. S., Salmento, J. S., & Frey, H. C. (1988). Cost-Effective emission controls for coal-fired power plants. Chemical Engineering Communications, 74(1), 155–167. https://doi.org/10.1080/00986448808940456 Hopkins, D. C., & Lee, F. C. (1988). High-Performance, High-Frequency, Distributed, Computer Power Supply Technology. Digital Equipment Corporation. Hopkins, D. C. (1988). Development of a High-Density, Off-Line, Quasi-Resonant Converter Using Hybrid Techniques (Ph.D. Dissertation). Virginia Polytechnic Institute and State University. Hopkins, D. C., Stephenson, F. W., & Lee, F. C. (1988). Off-Line ZCS-QRC Thick-Film Hybrid Circuit. Proceedings of the Sixth Annual Power Electronics Seminar, 71–83. Hopkins, D. C., Stephenson, F. W., & Lee, F. C. (1988). Determination of Conductor Thickness and Width for Power-Hybrid Circuits. Proceedings of the Sixth Annual Power Electronics Seminar, 71–83. Hopkins, D. C., Stephenson, F. W., & Lee, F. C. (1988). Printing of Thick Thick-Film Conductors for Power Hybrid Circuits. ISHM International Symposium on Microelectronics Proceedings, 95–101. Cheng, J. (1988). Preparation of wort with unmalted cereals and enzymes (Chinese). 1st Conference of the Jiangxi Biotechnology Association (Nanchang, China), 1, 123–127.