ВУЗ:
Составители:
Рубрика:
29
Kmffbjmy ijhba\_^_gby \_jhylghklb ihl_jb fmlZpbb b \_jhylghklb jh`^_gby
hij_^_e_ggh]h dhebq_kl\Z ihlhfdh\ ihemqZxl \_jhylghklv P
loss
ihl_jb Zee_ey Z aZ
h^ghihdhe_gb_
∑
•=
n
k
kloss
pP
0
2
1
(32)
JZkq_luihdZau\ZxlqlhwlZ\_ebqbgZjZ\gZH
-1
beb<_jhylghklvkhojZg_-
gbyZee_eyZ\h\lhjhfihdhe_gbb \ur_q_f\_jhylghklv_]hih-
l_jb Ih^h[gu_ jZkq_lu ^ey m]ZkZxs_c ihimeypbbkj_^g__ qbkeh ihlhfdh\ gZ h^gm
iZjmλ ihdZau\Zxl qlh \_jhylghklv ihl_jb \hajZklZ_l ^h GZh[hjhl \
kemqZ_³ijhp\_lZgby´dh]^Zkj_^g__qbkehihlhfdh\khklZ\ey_lb\_jhylghklvih-
l_jbkgb`Z_lky^hbkhhl\_lkl\_ggh<ex[hfkemqZ_\jy^mihke_^mxsbo
ihdhe_gbcqbkeh j_^dbo g_cljZevguofmlZpbc\ ihimeypbb[m^_lmf_gvrZlvky ihdZ
g_bkq_ag_lihke_^gbcfmlZglguc]_g
<[hevrbgkl\_kemqZ_\fmlZpbb\h^ghfblhf`_ehdmk_\hagbdZxlkhij_^_e_g-
ghcqZklhlhcbeb \_jhylghklvx JZkkfhljbfkblmZpbxijbdhlhjhc ijhp_kk fmlbjh-
\Zgbyy\ey_lky_^bgkl\_ggufnZdlhjhfbaf_g_gbyqZklhlZee_e_c\ihimeypbbHij_-
^_e_gbyqZklhlu\_jhylghklbihy\e_gbyfmlZpbb\ihimeypbbihgylghbake_^mxs_-
]hijbf_jZ?kebaZh^ghihdhe_gb_fmlbjm_lh^bgZee_evbalukyqlZdboZee_e_c
lhqZklhlZjZ\gZ •10
-5
<_kl_kl\_gguomkeh\byoh[uqghgZ[ex^Zxlky\_eb-
qbgu
-6
- 10
-5
Gbadbcl_fifmlbjh\Zgby 4•10
-9
h[gZjm`_gmEscherichia soliih]_gm
hij_^_eyxs_fm mklhcqb\hklv d klj_ilhfbpbgm gZb[he__ \ukhdbcm q_eh\_dZ ijb
ihy\e_gbb]_gZg_cjhnb[jhfZlhaZ
IjbZgZeba_fmlZpbhggh]hijhp_kkZfh`ghbkoh^blvba^\momkeh\bcijhp_kk
b^_l\h^ghfgZijZ\e_gbbgZijbf_j]_g :ljZgknhjfbjm_lky\]_gZijhp_kkb^_l
\ijyfhfbh[jZlghfgZijZ\e_gbyo
Imklvj
qZklhlZZee_ey :\bkoh^ghfihdhe_gbbuqZklhlZbebkdhjhklvfmlb-
jh\ZgbyZee_ey: → ZLh]^ZqZklhlZZee_ey :aZh^ghihdhe_gb_mf_gvrblkygZ\_eb-
qbgmjZ\gmxu × p
o
<ke_^mxs_fihdhe_gbbqZklhlZZee_ey :khklZ\bl
p
1
= p
o
- (u • p
o
) = p
o
• (1 - u) . (32)
G_ljm^ghihemqblv\ujZ`_gb_^eyhij_^_e_gbyqZklhluZee_ey:q_j_atihdhe_-
gbcijbg_baf_gghfl_fi_fmlbjh\Zgby
p
t
= p
o
• (1- u)
t
. (33)
30
IjbWklj_fys_fkyd [_kdhg_qghklb qZklhlZ Zee_ey:
p
t
klj_fblky d gmex beb
^jm]bfbkeh\ZfbZee_evZiheghklvxaZf_sZ_lZee_ev:
.
Ihkdhevdm\_ebqbgZXfgh]hf_gvr__^bgbpu\ujZ`_gb_u)
t
\\ujZ`_gbb
ijb[eb`_gghjZ\ghe
-ut
Lh]^ZnhjfmeZijbh[j_lZ_l\b^
p
t
= p
o
• e
-ut
(34)
BamjZ\g_gbye_]dhhij_^_eblvqbkehihdhe_gbcg_h[oh^bfh_^eyfmlZpbhg-
gh]hk^\b]ZqZklhlZee_e_c
W
S
S
X
=
OQ
(35)
QZklhhij_^_eyxlqbkehihdhe_gbcaZdhlhju_qZklhlZZee_ey:mf_gvrblky\
jZaZIh^klZ\b\\\ujZ`_gb_agZq_gb_p
t
= 0.5p
o
,ihemqbft = ln2/Xbebt = 0.69/u.
Ijbkj_^g_fagZq_gbbu=10
-5
, t ihdhe_gbc
>eyhibkZgbyijhp_kkZfmlbjh\Zgbyb^ms_]h\ijyfhfbh[jZlghfgZijZ\e_gbb
\\_^_f ^hihegbl_evgmx i_j_f_ggmx v dhlhjZy oZjZdl_jbam_l kdhjhklv h[jZlghc fm-
lZpbba
→
:<i_j\hfihdhe_gbbihke_gZqZeZfmlZpbcqZklhlZZee_ey:khklZ\bl
p
1
= p
o
- u
•
po + v
•
q
o
bebS
1
= p
o
- u
•
p
o
+ v
•
(1- p
o
)
(36)
<ujZ`_gb_
u
•
p
o
+ v
•
(1- p
o
)
hljZ`Z_l\_ebqbgmbaf_g_gbyqZklhluZee_ey:aZ
h^ghihdhe_gb_<hlebqb_hli_j\h]h\ZjbZglZdh]^Z]_gfmlbjm_l\h^ghfgZijZ\e_-
gbbijbh^gh\j_f_gghfijyfhfbh[jZlghffmlbjh\Zgbb\_ebqbgZbaf_g_gbyqZklh-
lu Zee_ey : \ hij_^_e_gguc fhf_gl klZgh\blky jZ\ghc gmex b gZklmiZ_l ^bgZfbq_-
kdh_jZ\gh\_kb_FZl_fZlbq_kdbwlhfh`ghij_^klZ\blvdZd
u
•
p
r
+ v
•(
1- p
r
]^_
p
r
jZ\gh\_kgZyqZklhlZZee_ey:<_ebqbgZp
r
= v/(u + Yg_aZ\bkblhlbkoh^ghcqZklhlu
Zee_ey:bhij_^_ey_lkylhevdhkhhlghr_gb_fkdhjhkl_cijyfh]hbh[jZlgh]hfmlbjh-
\Zgby
LZdbfh[jZahf \ [hevrhcg_ ih^\_j`_gghc^_ckl\bx hl[hjZ ihimeypbb fmlZ-
pbhgguc ijhp_kk ijb\h^bl eb[h d aZf_g_ h^gh]h Zee_ey ^jm]bf eb[h d jZ\gh\_kbx
qZklhlH^gZdh^eyijhy\e_gbyj_amevlZlh\fmlZpbhggh]hijhp_kkZ baaZfZeuokdh-
jhkl_clj_[mxlky[hevrb_bgl_j\Zeu\j_f_gbeb[h[hevrh_qbkehihdhe_gbc
Fb]jZpbyihlhd]_gh\)
F_`ihimeypbhgguch[f_g ]_gh\\hagbdZ_lijbkdj_sb\Zgbb hkh[_cijbgZ^e_-
`ZsbojZaguf ihimeypbyfWlhfmij_^r_kl\m_l i_j_f_s_gb_ hkh[_c\ ijhkljZgkl\_
Страницы
- « первая
- ‹ предыдущая
- …
- 13
- 14
- 15
- 16
- 17
- …
- следующая ›
- последняя »
