c L_ce L_ce_opt 2 2 c L_ce L_ce_opt c 1 -1 width 2 v_ce 1 time_ 1 0.92 time_ 1 time_ 5 0.9 Factor L_ce F_isom A_REL B_REL 1 F F_max q A_REL B_REL alpha L_see L_slack Factor B_REL F_isom c2 2 F_isom A_REL slope F_isom F_asympt c1 F_isom c2 L L_ce