Computer Systems for Process Control James J ) The number of energids Jr ) The number of energids pCI' cell can be subject to variation as a response to certain environmental conditions 01' during certain phases of a developmental cycle scientists in the US produced the "Road Map for the Exploration of Neighboring Planetary Systems (ExNPS)" The themes to date have been: 1969 Flow Research on Blading 1971 Real Time Control of Electric Power Systems 1973 High Temperature Materials in Gas Turbines 1975 Nonemissive Electrooptic Displays 1977 Current Interruption in High Voltage Networks 1979 Surges in High Voltage Networks 1981 Semiconductor Devices for Power Conditionling 1983 Corrosion in Power Generating Equipment 1985 Computer Systems for Process Control Why have we chosen these topics we felt that a subject for a symposium should fulfill the following three requirements: It should characterize a part of a thoroughly scientific discipline