[ Eq(Derivative(x1, t), (1*k39*k1*x1*(1 - x1/k2) + (-1)*k39*k3*x5/(x5 + k4)*x2*x1/(k7 + x1)*(k5 + k6*(1 - k5)/(x3 + k6)))/k39),
  Eq(Derivative(x2, t), (1*k39*k8*x6*x1/(x6*x1 + k9)*(k10 + k11*(1 - k10)/(x3 + k11)) + (-1)*k39*k12*x2 + 1*k39*(Piecewise((k29/k38, And(And(Ge(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), 0), Le(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), k38)), Lt(t, 360))), (0, True)) + Piecewise((k37/k38, And(And(And(Ge(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), 0), Le(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), k38)), Gt(t, 1440)), Lt(t, 1800))), (0, True)) + Piecewise((k37/k38, And(And(And(Ge(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), 0), Le(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), k38)), Gt(t, 2880)), Lt(t, 3240))), (0, True)) + Piecewise((k37/k38, And(And(And(Ge(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), 0), Le(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), k38)), Gt(t, 4320)), Lt(t, 4680))), (0, True)) + Piecewise((k37/k38, And(And(And(Ge(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), 0), Le(Piecewise((t - 120*ceiling(t/120), Xor(Lt(t, 0), Lt(120, 0))), (t - 120*floor(t/120), True)), k38)), Gt(t, 5760)), Lt(t, 6120))), (0, True))))/k39),
  Eq(Derivative(x3, t), (1*k39*k13 + 1*k39*k5*x1 + (-1)*k39*k15*x3)/k39),
  Eq(Derivative(x4, t), (1*k39*k16*x2 + (-1)*k39*k17*x4)/k39),
  Eq(Derivative(x5, t), (1*k39*k18 + 1*k39*k40 + (-1)*k39*k21*x5)/k39),
  Eq(Derivative(x6, t), (1*k39*k41 + (-1)*k39*k26*x6)/k39) ]