equation icon  2 ( V~ ----[----------]--- ) (CRD) ---b-(z)--- (R) --ks-- --1-- 2 P (ks,mk; z) = c _L (z)2c||(z)Pmass c _L (z) 1 + j(z)2 - 1 m k;z × ( ) [ ( 1 ) ]-2 [ (1 + b(z) ) ]2 k2m2 s2 -1 1 + ----2- 1 m2k 1 + ------2--- 1 m2k 1 + -s-2k-P , (157) j(z) j(z) 2c||(z)