In an elevator monitoring system, an operation monitoring apparatus receives operation condition data from a group supervisory control device so as to display operation conditions of elevators on a monitor. Based on linear elastic input data, the system automatically determines non-linear hysteretic behaviors. Depending upon the particular embodiment, the aquarium may also include features such as a second container adapted and configured to mate with the first container and receive the outlet such that fluid flows from the waste collection area through the outlet and into the second container when fluid is added above a preselected fluid level. In the second container, the molecular species is separated from the main vapor stream by virtue of the exposure of the vapor to large centrifugal gravity forces generated by the horizontal velocity vectors of the rotating screens. Accordingly, the edge connector does not block airflow through the fan FRU thus maximizing the efficiency of the fan FRU and the cooling of the electronic device.