Bilge keels are passive stability systems. On commercial shipping the bilge keel is the form of a strake, or small keel or blister, running along much of the length of the hull. They are typically fitted one on each side, low down on the side of the hull, so as not to increase the draft of the vessel.
Intensity is a measure of the strength of shaking experienced in an earthquake. The Modified Mercalli Scale represents the local effect or damage caused by an earthquake; the intensity reported at different points generally decreases away from the earthquake epicenter.
Energy intensity is defined as the ratio of energy consumption to some measure of demand for energy services. The choice of a measure of demand for energy services (a demand indicator) in efficiency analysis is critical.nergy intensity is defined as the ratio of energy consumption to some measure of demand for energy services. The choice of a measure of demand for energy services (a demand indicator) in efficiency analysis is critical.