The invention relates to detecting coagulation and coagulation-related activities including agglutination and fibrinolysis of samples. A detachment preventing protrusion portion is formed on an outside wall surface of the outside wall portion. Based on the mechanical and hydraulic data, one of the states is automatically selected as the state of the well operation. The interpolator re-samples the down converted signal to produce a re-sampled signal. Execution of the first computing job is scheduled to take place on a first computing node during the first time period, where a start time associated with the first time period is a time selected from the group consisting of a current time and a future time. A modified rod may have a series of holes at each extreme end, to substantially increase the flow of fluid extracted.