Mark Hughes (motorsport) His appointment was made by the Secretary of State and was for three years. Mark left Bahrain in 2009 and was asked to help set up the new Middle East facility in Abu Dhabi, Yas Marina Circuit. Mark was a specialist consultant on the project and contributed significantly in getting the venue ready for the first race in November 2009. The Yas Marina Circuit set new standards for a motorsport venue and was the first circuit to host a day/night race. Yas Marina Circuit also won the presitigous FIA Formula One World Championship Race Promoters Trophy. The Abu Dhabi consultancy
Circuit rank of any planar graph with the same vertex set, is called the meshedness coefficient. For a connected planar graph with edges and vertices, the meshedness coefficient can be computed by the formula Here, the numerator formula_5 of the formula is the circuit rank of the given graph, and the denominator formula_6 is the largest possible circuit rank of an -vertex planar graph. The meshedness coefficient ranges between 0 for trees and 1 for maximal planar graphs. The circuit rank controls the number of ears in an ear decomposition of a graph, a partition of the edges of the graph into