δ (q = const). tsi, - tse. .
, , λ, (tsi - tse) δ.
λ , . .
. 0,026 /(˚C). 0,6 /( ˚C).
. (458 /( ˚C)), λ (384 /( ˚C)), (204 /( ˚C)).
, , , ( ) . , , , . , 1800 /3 λ=0,66 /( ˚C), 1000 /3 λ=0,27 /( ˚C).
. , 0,041 0,05 /(˚C).
: λ .
R.
.
R - 2º/.
, n ,