ThephysicalmodeldescribingtheYin-Yangbalanceinthetai-chidiagramviathemeltingandfreezingprocessesinarotatingdevicepresentedinparts1and2isfurtherdevelopedforthecontemporarytai-chidiagramandintheyuan-chidiagram.Thecontemporarytai-chidiagramshowninFig.1isasimplificationformoftheancienttai-chidiagrampresentedinReference[2].Therearetwosemi-circlesformingtheinterfacecurvebetweentheyinandyanginthecontemporarytai-chidiagram.Byknowingthelocationoftheinterfacebetweentheyinandyanginthecontemporarytai-chidiagram,therequirementforthesimulationmodelistofindtheconditiontomatchtheinterfacelocation.Thesimplificationchangesnotonlythestructurebutalsothephysicalinsightoftheancienttai-chidiagram,whichwillbedescribedinthepresentstudy.Theyuan-chidiagramshowninFig.2isthecombinationoftheMasterChen’stai-chidiagrampresentedinReferences[1,2]andthecontemporarytai-chidiagram.Th
