Mass transit terrorism is prevented to construct a safe society. Coagulation fluid enters the tube through a fluid inlet coupled to its upper end and establishes a laminar flow of coagulation fluid within the tube. Based on the measured amount of time, a correction amount is computed for the initial pressure necessary to increase the turbine rotation speed to the predetermined rotation speed in a predetermined amount of time. In at least some embodiments, color coding can be used to uniquely identify exact matches, synonyms andor syntactically similar words that are identified on a page. The graphic is displayed on the client. The core structure can either be fully composed of high permeability low saturation cores with air gaps or be composite comprising low permeability high saturation cores and high permeability low saturation cores with no air gaps.