--- Quarks as wave quadrants: an example of the Wave Quadrant Diagram System. This system is described in poster version v9.8. It describes particles internal structure as ring shaped waves. The system is a method of accounting for the number of wave quadrants exchanged during particle decay or particle interactions. The number of quadrants is conserved except in two special cases. 1) When existing electrical charges cancel ( + and - = 0), an extra photon of four quadrants is produced. 2) When existing coupling charges are open ( 0 => + and -) a pair of neutrino Ve and anti-neutrino Ve is produced. In this last case, one of the neutrinos produced may remain part of the new wave structure within the products while the other is emitted. Here is main poster v9.8