The interaction of a plurality of users with a computer system is monitored and measurements are made of different features of this interaction such as process creation, registry key changes, and file system actions. The method is well suited to separate hydrocarbon-containing mixtures such as those generated by petroleum refining industries, petrochemical industries, natural gas processing, and the like. The terminal member includes a resistance connection portion to be in contact with the resistance main body, and a circuit connection portion provided so as to extend from the resistance connection portion.