Abstract: A method of evaluating utilization of one or more computer systems includes monitoring utilization of a computer system for each of a plurality of time periods in a reporting period and, for each time period, assigning a numeric value based on the monitored utilization and a predefined scale of utilization ranges. The method also includes calculating an overall numeric value for the reporting period by combining the numeric values assigned to the plurality of time periods. The overall numeric value represents the utilization of the computer system during the reporting period. Additional methods and related computer systems are also disclosed.

Abstract: An apparatus for use in removing oil containing contaminants from articles includes a wash station and a rinse station. At the wash station, the articles are immersed in a tank of wash water containing detergent to remove oil containing contaminants from the articles. A flow of wash water containing the detergent and oil is conducted through an oil retainer. The oil is removed from the wash water and retained by the oil retainer. A flow of wash water which contains detergent and is substantially free of oil, is conducted from the oil retainer apparatus back to the wash tank. After having been removed from the wash tank, the articles are immersed in deionized rinse water in a rinse tank to remove detergent and any remaining oil containing contaminants from the articles.