Physical and

Physiological

parameters

Epidermis

l 0 x l 1

Dermis

l 1 x l 2

Subcutaneous

l 2 x l 3

K

K 1

K 2

K 3

M

M 1 = 0

M 2

M 3

T A

T A ( 1 ) = 0

T A ( 2 ) = T b

T A ( 3 ) = T b

S ( t )

S 1 = 0

S 2 = S 0 + E S 0 1 + e β ( t t 0 )

S 3 = 2 [ S 0 + E S 0 1 + e β ( t t 0 ) ]

T ( i )

T ( 1 ) = T 0 + ( T 1 T 0 l 1 ) x

T ( 2 ) = l 2 T 1 l 1 T 2 l 2 l 1 + ( T 2 T 1 l 2 l 1 ) x

T ( 3 ) = l 3 T 2 l 2 T 3 l 3 l 2 + ( T 3 T 2 l 3 l 2 ) x