0 TbH agH*SH*(2/3+T/TbH*(2.5/qH-2/3))
TbH TcH agH*SH*2.5/qH
TcH TdH max(agH*SH*2.5/qH*TcH/T,betaH*agH)
TdH 3 max(agH*SH*2.5/qH*TcH*TdH/T^2,betaH*agH)