|
x
1.3
1.31
1.32
1.33
1.34
1.35
1.36
1.37
1.38
1.39
erfc
0.065992055
0.063936877
0.061934845
0.059984974
0.058086285
0.056237804
0.054438563
0.052687602
0.050983965
0.049326704
x
1.4
1.41
1.42
1.43
1.44
1.45
1.46
1.47
1.48
1.49
erfc
0.04771488
0.046147561
0.044623821
0.043142747
0.04170343
0.04030497
|
|
|
surface (which is assumed to remain constant).
(6) Error Function (erf)
The error function (erf) is a mathematical function that can be read from a table or a graph to get the value of the error function for any argument. Using a dummy variable Z, the error function provides one solution for Fick's
|
|
|
있다. 오차함수표를 이용하면,
0.521 - 0.500
=
- 0.5205
0.550 - 0.500
0.5633 - 0.5205
, 0.42
=
- 0.5205
0.5633 - 0.5205
= 0.538
erf 0.521 = 0.538
= 0.90 - (0.70)(0.538) = 0.52%
12.
= 1024atoms/m3 = ?m
= 0 atoms/m3 = 3h = 3h × 3600s/h = 1.08 × 104s
= 1022 atoms/m3 1100℃ = 7.0 × 10-17m2/s
1024 - 1022
=
|
|
|
0.5wt%=1.5 TIMES [1-(1- { 0.1 } over { 1.5 } )erf( { 0.1} over {2 SQRT {0.384 TIMES { 10}^{ -6}TIMES t} } )]
erf( { 0.1} over {2 SQRT {0.384 TIMES { 10}^{ -6}TIMES t} } )=0.7146
THEREFORE t=3.58hr 목차없음..
|
|
|
ada
Air New Zealand
All Nippon Airways
Asiana Airlines
Austrian Airlines
Bmi British Midland
LOT Polish Airlines
Lufthansa
Scandinavian Airlines
Singapore Airlines
Spanair
TAP Portugal
Thai Airways
United Airlines
U.S. Airways
Varig
Aer Lingus
American Airlines
British Airways
Cathay Pacific
Finnair
|
|
메뉴펼치기
