#NHI   = 14.50  0.30
aUV   = -0.25  0.50
min k_C = -1.
max k_C = 1.
min k_N = -1.
max k_N = 1.
min k_Al = -1.
max k_Al = 1.
min k_Fe = -1.
max k_Fe = 1.
