Str = 1/ltr, (5.3.4)
.
- , . , :
ltr = ls/(1-m), (5.3.5)
m - - . (5.3.5) :
Str = Ss(1 -m). (5.3.6)
- , , - , .
, (m 0), Str Ss, Str Ss. (, m = 0.667 Str Ss/3, m = 0.0556 Str 0.944 Ss).
5.3.4. . :
- l() - , , ( , - , - l()).
( !) (.5.7).
, 0
,
( )
.
.5.7. .
, , , . - , - , . , , , .. , , , .
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, : ()?
, :
. (5.3.7)
:
, (5.3.8)
s(E) = (ln Eo/E)/x - , (.5.2.5).
, , .
- .
t(E) , .
, . (5.3.9)
(5.3.8) s(E) :
. (5.3.10)
, , , ( - t ):
. (5.3.10a)
, , - 2. ( ).
, : , .
-: - , , : , (5.3.10), ( xSs Str).
() () .
. :
- t = 29.6 2;
- t = 90 2;
- t = 352 2, ..
, ( 20) = 2 = 0.625 . , - .
5.3.5. t . (5.3.10) (, Ss Str), , - (Ss Str).
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) (g), N = g N/A; , (Ss = ssN Str = strN); ( (5.3.10)) . , .
*) , . ( , , ), ( 10-6) , - , () , .
, . , , , , "" . , ( "" ) . , - (5.3.10).
t:
to kT E t ¯
t?
t g¯ N¯ Ss, Str¯ t
.
, . ?
- ( , , , ) ( ; , );
- , , , . , , - .
, 20 300 30 80 2.
- , , , .
) , , , - .
, , (p) (g) , (N) Ss Str, , , .
, , , , .
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