Model Mathematics

Component: environment

Component: a

ddtimea=k1-k3aba+K4-k5aca+K6

Component: b

ddtimeb=k7a-k8bb+K9

Component: c

ddtimec=k10cbdd+K11+k12b+k13a-k14cc+K15-k16cc+K17

Component: d

ddtimed=-k10cbdd+K11+k16cc+K17

Component: model_parameters