${\sigma }_k$

${\sigma }_{\epsilon }$

$C_{\epsilon 1}$

$C_{\epsilon 2}$

$C_{s1}$

$C_{s2}$

$C_{s1}$

$C_{s2}$

$C_{s3}$

$C_{s4}$

$C_{s5}$

0.68

1.3

1.45

1.83

1.7

−1.05

1.7

0.9

0.8

0.625

0.2