I
nd
o
ne
s
ia
n J
o
urna
l o
f
E
lect
rica
l
E
ng
ineering
a
nd
Co
m
p
u
t
er
Science
Vo
l.
9
,
No
.
3
,
Ma
r
ch
2
0
1
8
,
p
p
.
546
~
548
I
SS
N:
2502
-
4752
,
DOI
: 1
0
.
1
1
5
9
1
/
i
j
ee
cs
.
v
9
.
i
3
.
p
p
5
4
6
-
548
546
J
o
ur
na
l ho
m
ep
a
g
e
:
h
ttp
:
//ia
e
s
co
r
e.
co
m/jo
u
r
n
a
ls
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d
ex
.
p
h
p
/
ijeec
s
Intensity
and
T
ru
stw
o
rthiness Aw
a
k
e
Delay
P
ercep
ti
v
e Routing
f
o
r Sub
m
a
rine
W
SNs
Dev
a
k
u
m
a
r
1
,
V.
B
a
la
m
urug
a
n
2
1
A
M
ET
Un
iv
e
rsit
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Ch
e
n
n
a
i,
I
n
d
i
a
2
M
a
n
o
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m
a
n
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y
a
m
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u
n
d
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ra
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r
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T
iru
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li
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In
d
ia
Art
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nfo
AB
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T
A
r
ticle
his
to
r
y:
R
ec
eiv
ed
No
v
30
,
2
0
1
7
R
ev
i
s
ed
Feb
8
,
2
0
1
8
A
cc
ep
ted
Feb
25
,
2
0
1
8
S
u
b
m
a
rin
e
W
irele
ss
S
e
n
so
r
Ne
tw
o
rk
s
(S
W
S
Ns
)
h
a
v
e
e
a
rn
e
d
im
p
o
rtan
t
c
o
n
c
e
n
tratio
n
o
f
b
o
th
u
n
iv
e
rsity
a
n
d
m
a
n
u
fa
c
tu
rin
g
in
c
u
rre
n
t
y
e
a
rs.
In
th
is
p
a
p
e
r,
w
e
in
tro
d
u
c
e
in
ten
sity
a
n
d
tru
stw
o
rth
i
n
e
ss
a
w
a
k
e
d
e
la
y
p
e
rsp
e
c
ti
v
e
(IT
A
DP
)
ro
u
ti
n
g
p
ro
t
o
c
o
l
f
o
r
su
b
m
a
rin
e
W
S
Ns
.
We
g
e
t
in
sp
iratio
n
f
ro
m
S
u
b
m
a
rin
e
Op
p
o
rtu
n
isti
c
R
o
u
ti
n
g
(S
OR)
p
ro
t
o
c
o
l
th
a
t
e
x
p
lai
n
s
e
x
p
e
c
ted
e
n
d
-
to
-
e
n
d
late
n
c
y
f
ro
m
S
e
n
d
e
r
se
n
so
r
to
sin
k
.
W
e
c
o
n
sid
e
r
tw
o
f
a
u
lt
s
in
S
OR.
In
it
ially
,
in
S
OR
p
ro
t
o
c
o
l,
se
n
so
r
tran
sm
it
th
e
in
f
o
rm
a
ti
o
n
to
in
term
e
d
iate
n
o
d
e
th
a
t
h
a
v
e
h
ig
h
e
r
tru
stw
o
rth
in
e
ss
m
issin
g
th
e
d
e
p
th
o
f
th
e
f
o
r
w
a
rd
e
r
n
o
d
e
,
th
u
s
c
re
a
te
m
o
re
h
o
p
c
o
u
n
ts.
T
h
e
c
o
o
rd
in
a
ti
o
n
ti
m
e
o
f
in
term
e
d
iate
se
n
so
r
c
lu
ste
r
is
se
c
o
n
d
f
a
u
lt
th
a
t
i
n
c
re
a
se
s
th
e
late
n
c
y
.
T
h
u
s,
w
e
in
tro
d
u
c
e
In
ten
sity
a
n
d
tru
stw
o
rth
in
e
ss
a
w
a
k
e
ro
u
ti
n
g
in
su
b
m
a
rin
e
W
S
Ns
.
K
ey
w
o
r
d
s
:
Su
b
m
ar
in
e
i
n
te
n
s
it
y
T
r
u
s
t
w
o
r
th
in
e
s
s
W
ir
eless
Sen
s
o
r
Net
w
o
r
k
Co
p
y
rig
h
t
©
2
0
1
8
In
stit
u
te o
f
A
d
v
a
n
c
e
d
E
n
g
i
n
e
e
rin
g
a
n
d
S
c
ien
c
e
.
Al
l
rig
h
ts
re
se
rv
e
d
.
C
o
r
r
e
s
p
o
nd
ing
A
uth
o
r
:
Dev
a
k
u
m
ar
,
A
ME
T
Un
i
v
er
s
it
y
,
C
h
en
n
ai,
I
n
d
ia.
1.
I
NT
RO
D
UCT
I
O
N
Su
b
m
ar
in
e
W
ir
eles
s
Sen
s
o
r
Net
w
o
r
k
s
(
SW
SN
s
)
u
s
ed
to
o
b
s
er
v
e
th
e
v
a
s
t
u
n
f
a
m
il
iar
s
u
b
m
ar
in
e
f
ield
o
f
th
e
g
r
o
u
n
d
.
SW
SN
f
ac
il
itates
b
r
o
ad
r
an
g
e
o
f
ap
p
li
ca
tio
n
s
s
u
ch
as
e
n
v
ir
o
n
m
e
n
t
o
b
s
er
v
in
g
,
aid
ed
n
av
i
g
atio
n
,
q
u
ar
r
y
d
etec
tio
n
,
an
d
ca
la
m
it
y
p
r
e
v
en
tio
n
[
1
]
,
[
2
]
.
T
h
e
ac
o
u
s
tic
s
i
g
n
als
co
n
tr
ib
u
te
a
lo
t
o
f
d
is
p
u
tes
o
w
i
n
g
to
f
i
x
ed
b
an
d
w
id
t
h
,
b
it
er
r
o
r
r
ate
(
B
E
R
)
a
n
d
h
ig
h
m
o
b
ili
t
y
.
A
d
d
itio
n
all
y
,
th
e
s
u
b
s
tit
u
te
o
r
ch
ar
g
i
n
g
o
f
s
en
s
o
r
b
atter
ies
is
a
co
n
f
u
s
ed
w
o
r
k
th
a
t
m
a
k
es
en
er
g
y
e
x
p
en
d
it
u
r
e
d
if
f
icu
lt
y
[
3
]
,
[
4
]
.
A
s
a
r
esu
lt,
in
v
e
s
ti
g
ate
a
n
e
w
r
o
u
t
in
g
p
r
o
t
o
co
l
f
o
r
SW
SNs
is
a
v
ital
p
r
o
b
le
m
.
E
n
er
g
y
-
e
f
f
icie
n
t
R
o
u
t
in
g
p
r
o
to
co
l
u
s
ed
to
i
m
p
r
o
v
e
t
h
e
Qo
S
r
eq
u
ir
e
m
e
n
ts
o
f
e
v
en
t
-
d
r
iv
e
n
ap
p
licati
o
n
s
[
5
]
.
I
n
[
6
]
,
[
7
]
ad
d
r
ess
th
e
p
r
o
b
le
m
o
f
th
e
tr
an
s
m
is
s
io
n
o
v
er
a
p
o
in
t
-
to
-
p
o
in
t
lo
s
s
y
lo
n
g
-
d
ela
y
.
T
o
d
im
i
n
is
h
th
e
p
r
ed
ictab
le
ti
m
e
to
co
m
p
letio
n
,
th
e
y
f
in
d
o
u
t
t
h
e
p
er
io
d
o
f
s
u
cc
ess
iv
e
c
y
cle
s
,
d
u
r
in
g
th
a
t
b
ased
o
n
th
e
la
s
t
ac
k
n
o
w
led
g
e
m
e
n
t
e
s
t
ab
lis
h
ed
f
r
o
m
th
e
r
ec
eiv
er
,
th
e
s
o
u
r
ce
ca
n
b
r
o
ad
ca
s
t
a
n
u
m
b
er
o
f
u
n
n
ec
es
s
ar
y
p
ac
k
ets,
an
d
s
to
p
s
tr
an
s
m
itt
in
g
to
s
tar
t
to
n
o
te
th
e
A
c
k
n
o
w
led
g
e
m
en
t
[
8
]
.
2.
P
RO
P
O
SE
D
M
E
T
H
O
D
I
n
th
is
s
e
g
m
en
t,
w
e
ex
p
lai
n
I
n
ten
s
it
y
a
n
d
tr
u
s
t
w
o
r
t
h
i
n
es
s
aw
a
k
e
d
ela
y
p
er
ce
p
tiv
e
r
o
u
tin
g
in
d
etail.
T
h
e
g
o
al
o
f
o
u
r
w
o
r
k
i
s
to
e
x
p
an
d
t
h
e
s
y
s
te
m
th
r
o
u
g
h
p
u
t
o
f
d
ela
y
d
elica
te
ap
p
licatio
n
s
i
n
UW
S
Ns
.
E
ac
h
n
eig
h
b
o
r
h
u
b
o
f
s
o
u
r
ce
h
u
b
s
h
ap
es
a
g
r
o
u
p
an
d
f
i
g
u
r
es
th
e
co
o
r
d
in
atio
n
d
ela
y
b
et
w
ee
n
t
h
e
h
u
b
s
in
s
id
e
it
s
g
r
o
u
p
.
T
h
e
co
o
r
d
in
atio
n
d
ela
y
b
et
w
ee
n
ea
ch
f
o
r
w
ar
d
er
h
u
b
ex
p
an
d
s
t
h
e
d
ela
y
th
at
d
i
m
i
n
i
s
h
es
t
h
e
t
h
r
o
u
g
h
p
u
t
o
f
s
u
b
m
ar
i
n
e
o
p
p
o
r
tu
n
i
s
tic
r
o
u
ti
n
g
.
Nev
er
t
h
eles
s
,
i
n
I
T
A
D
P
w
e
e
x
cl
u
d
e
th
e
co
o
r
d
in
atio
n
d
ela
y
a
m
o
n
g
t
h
e
tr
an
s
m
is
s
io
n
h
u
b
s
a
n
d
u
t
ilize
th
e
i
n
te
n
s
it
y
m
i
n
d
f
u
l
n
es
s
a
n
d
s
tead
f
ast
n
es
s
i
n
ter
f
ac
e
p
ar
am
eter
to
d
i
m
in
i
s
h
n
u
m
b
er
o
f
h
u
b
s
a
n
d
en
h
a
n
ce
t
h
e
th
r
o
u
g
h
p
u
t.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esia
n
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2502
-
4752
I
n
ten
s
ity
a
n
d
tr
u
s
tw
o
r
th
in
ess
a
w
a
ke
d
ela
y
p
ercep
tive
r
o
u
tin
g
…
(
Dev
a
ku
ma
r
)
547
T
h
e
d
esig
n
o
f
o
u
r
s
y
s
te
m
i
s
talk
ed
ab
o
u
t
in
f
ir
s
t
s
u
b
s
ec
t
io
n
.
On
th
e
o
p
ti
m
u
m
r
o
d
g
e
o
m
e
tr
y
f
o
r
p
r
ac
tical
lig
h
tn
i
n
g
p
r
o
tectio
n
s
y
s
te
m
s
[
9
]
.
T
h
e
in
tr
o
d
u
ctio
n
an
d
d
esig
n
o
f
t
h
e
s
y
s
te
m
is
p
o
r
tr
ay
ed
in
co
u
r
s
e
s
etu
p
s
ta
g
e.
I
n
las
t s
u
b
s
ec
tio
n
,
in
f
o
r
m
atio
n
s
en
d
i
n
g
s
y
s
te
m
is
talk
ed
ab
o
u
t.
3.
NE
T
WO
RK
DE
S
I
G
N
I
n
I
T
A
DP
,
a
s
tatic
s
in
k
o
cc
u
p
ies
o
n
th
e
s
u
r
f
ac
e
o
f
w
ate
r
th
at
co
n
tain
s
b
o
th
ac
o
u
s
tic
an
d
r
ad
io
m
o
d
e
m
s
.
A
co
u
s
t
ic
m
o
d
e
m
is
u
s
ed
to
tr
an
s
m
it
t
h
e
in
f
o
r
m
a
ti
o
n
to
s
u
b
m
ar
in
e
s
en
s
o
r
n
o
d
es
w
h
ile
r
ad
io
m
o
d
e
m
is
u
s
ed
f
o
r
co
m
m
u
n
icate
w
it
h
o
n
s
h
o
r
e
in
f
o
r
m
atio
n
ce
n
ter
.
H
er
e,
1
0
0
0
s
en
s
o
r
n
o
d
es
ar
e
r
an
d
o
m
l
y
d
is
tr
ib
u
ted
in
a
n
e
t
w
o
r
k
,
w
h
ich
is
r
ec
o
g
n
ized
th
e
n
ee
d
ed
d
ata
f
r
o
m
th
e
s
u
r
r
o
u
n
d
in
g
,
an
d
f
o
r
w
ar
d
t
h
a
t
d
ata
to
s
tatic
s
i
n
k
v
ia
in
ter
m
ed
iate
n
o
d
es in
m
u
lt
i
-
h
o
p
m
an
n
er
.
Fig
u
r
e
1
.
I
n
f
o
r
m
atio
n
T
r
an
s
m
i
s
s
io
n
i
n
s
u
b
m
ar
i
n
e
W
SN
3
.
1
.
P
a
t
h Set
up
Sta
g
e
Sen
s
o
r
n
o
d
es
ar
e
f
i
n
d
in
g
t
h
eir
in
te
n
s
it
y
f
r
o
m
t
h
eir
d
ep
th
s
en
s
o
r
an
d
th
e
n
tr
an
s
m
it
a
co
n
tr
o
l
p
ac
k
et
i
n
its
co
m
m
u
n
icatio
n
r
a
n
g
e.
T
h
e
co
n
tr
o
l
p
ac
k
et
co
n
ta
in
s
s
en
d
er
id
en
tit
y
,
i
n
te
n
s
i
t
y
,
as
w
ell
as
n
eig
h
b
o
r
co
u
n
t.
A
ll
s
en
s
o
r
n
o
d
es k
ee
p
a
lis
t o
f
its
n
ei
g
h
b
o
r
s
an
d
th
eir
in
f
o
r
m
atio
n
.
3
.
2
.
I
nfo
rm
a
t
io
n Se
nd
ing
St
a
g
e
I
n
in
f
o
r
m
atio
n
s
e
n
d
in
g
s
ta
g
e,
th
e
s
en
s
o
r
n
o
d
es
r
ec
o
g
n
i
ze
d
th
e
w
a
n
ted
in
f
o
r
m
at
io
n
f
r
o
m
th
e
en
v
ir
o
n
m
e
n
t
an
d
tr
an
s
m
it
it
i
n
ter
m
ed
iate
n
o
d
e.
T
h
e
in
ter
m
ed
iate
n
o
d
e
w
i
ll
b
e
elec
ted
f
r
o
m
t
h
e
lis
t.
I
f
t
h
e
in
f
o
r
m
atio
n
is
e
f
f
ec
ti
v
el
y
o
b
t
ain
s
at
th
e
s
tatic
s
in
k
w
i
th
i
n
t
h
e
ti
m
eli
n
e,
it
w
il
l
b
e
s
av
ed
o
th
er
w
is
e,
i
t
w
ill
b
e
d
is
ca
r
d
ed
.
4.
RE
SU
L
T
AND
DI
SCUS
SI
O
N
Secu
r
it
y
i
s
r
ec
e
n
tl
y
a
s
u
b
j
ec
t
o
f
i
n
ter
est
n
o
t
o
n
l
y
f
o
r
s
cie
n
t
is
ts
an
d
e
n
g
i
n
ee
r
s
b
u
t
al
s
o
f
o
r
o
r
d
in
ar
y
p
eo
p
le.
W
e
u
s
e
m
o
r
e
an
d
m
o
r
e
co
n
n
ec
ted
d
ev
ice
s
an
d
W
ir
eless
Sen
s
o
r
Net
w
o
r
k
s
(
W
SN)
b
ec
o
m
e
an
i
m
p
o
r
tan
t
p
ar
t
o
f
a
co
n
n
ec
ted
w
o
r
ld
.
T
r
u
s
t
m
an
a
g
e
m
en
t
i
s
o
n
e
o
f
t
h
e
p
o
s
s
ib
le
s
o
lu
tio
n
s
f
o
r
ef
f
ec
ti
v
e
s
ec
u
r
it
y
ass
u
r
an
ce
i
n
W
SN.
5.
CO
NCLU
SI
O
N
I
n
th
i
s
p
ap
er
,
I
n
ten
s
it
y
a
n
d
tr
u
s
t
w
o
r
t
h
i
n
es
s
a
w
ak
e
d
ela
y
p
er
c
ep
tiv
e
r
o
u
tin
g
as
a
n
i
m
p
r
o
v
e
m
en
t
o
f
f
o
r
SOR
is
p
r
o
p
o
s
ed
.
T
h
e
in
ten
s
it
y
t
h
r
es
h
o
ld
is
u
s
ed
to
c
h
o
o
s
e
th
e
tr
u
s
t
w
o
r
t
h
in
e
s
s
an
d
lo
w
er
d
ep
th
in
ter
m
ed
iate
s
en
s
o
r
th
at
en
h
a
n
ce
th
e
t
h
r
o
u
g
h
p
u
t
an
d
d
i
m
i
n
is
h
th
e
n
u
m
b
er
o
f
h
o
p
s
.
I
n
SOR
,
if
th
e
tr
u
s
t
w
o
r
t
h
i
n
es
s
s
en
s
o
r
o
cc
u
p
ies
n
ea
r
to
th
e
s
en
d
er
,
th
en
it
i
s
elec
ted
as
in
ter
m
ed
iate
n
o
d
e
th
at
in
cr
ea
s
e
s
h
o
p
co
u
n
t
s
an
d
en
er
g
y
u
tili
za
t
io
n
.
I
n
ad
d
itio
n
,
t
h
e
i
n
ter
m
ed
iate
s
e
n
s
o
r
in
cr
ea
s
e
s
t
h
e
e
x
p
ec
ted
en
d
-
to
-
e
n
d
late
n
c
y
.
B
u
t,
I
T
A
DP
t
h
e
in
te
n
s
it
y
t
h
r
es
h
o
ld
an
d
c
h
o
o
s
e
th
e
in
ter
m
ed
iate
s
en
s
o
r
is
o
u
ts
id
e
th
e
d
ep
t
h
t
h
r
es
h
o
ld
.
T
h
e
I
T
A
DP
ac
h
ie
v
e
b
etter
n
et
w
o
r
k
th
r
o
u
g
h
p
u
t a
n
d
r
ed
u
ce
th
e
en
er
g
y
u
tili
za
t
io
n
.
D
e
st
i
n
a
t
i
o
n
S
o
u
r
c
e
In
t
e
r
m
e
d
i
a
te
D
a
t
a
Pa
c
k
e
t
a
m
b
h
f
e
d
j
i
k
t
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4752
I
n
d
o
n
esia
n
J
E
lec
E
n
g
&
C
o
m
p
Sci,
Vo
l
.
9
,
No
.
3
,
Ma
r
ch
2
0
1
8
:
5
4
6
–
5
4
8
548
RE
F
E
R
E
NC
E
S
[1
]
F
re
it
a
g
L
,
G
ru
n
d
M
,
Vo
n
A
lt
C,
S
to
k
e
y
R,
A
u
stin
T
.
A
sh
a
ll
o
w
wa
ter
a
c
o
u
stic
n
e
tw
o
rk
f
o
r
m
in
e
c
o
u
n
term
e
a
su
re
s
o
p
e
ra
ti
o
n
s w
it
h
a
u
t
o
n
o
m
o
u
s u
n
d
e
rw
a
t
e
r
v
e
h
icle
s
.
Un
d
e
rwa
ter
De
fen
se
T
e
c
h
n
o
lo
g
y
(
UD
T
)
.
2
0
0
5
.
[2
]
A
c
a
r
G
,
A
d
a
m
s
A
E.
A
CM
EN
e
t:
a
n
u
n
d
e
rwa
ter
a
c
o
u
stic
se
n
s
o
r
n
e
two
rk
p
ro
t
o
c
o
l
fo
r
re
a
l
-
ti
m
e
e
n
v
iro
n
me
n
t
a
l
mo
n
it
o
rin
g
i
n
c
o
a
st
a
l
a
re
a
s.
IE
E
P
r
o
c
e
e
d
in
g
s
-
Ra
d
a
r,
S
o
n
a
r
a
n
d
Na
v
ig
a
ti
o
n
.
2
0
0
6
;
1
5
3
(4
);
3
6
5
-
3
8
0
.
[3
]
Ak
y
il
d
iz
I
F
,
P
o
m
p
il
i
D,
M
e
lo
d
i
a
T
.
Un
d
e
rw
a
t
e
r
a
c
o
u
stic
se
n
so
r
n
e
tw
o
rk
s:
re
se
a
rc
h
c
h
a
ll
e
n
g
e
s.
Ad
h
o
c
n
e
two
rk
s
,
2
0
0
5
;
3
(3
)
;
2
5
7
-
2
7
9
.
[4
]
P
o
m
p
il
i
D.
A
k
y
il
d
iz
I
F
,
O
v
e
rv
iew
o
f
n
e
two
rk
in
g
p
ro
t
o
c
o
ls
fo
r
u
n
d
e
rwa
ter
wire
les
s
c
o
mm
u
n
ica
ti
o
n
s
.
Co
m
m
u
n
ica
ti
o
n
s M
a
g
a
z
in
e
,
IEE
E.
2
0
0
9
;
4
7
(
1
);
9
7
-
1
0
2
.
[5
]
Zh
a
n
g
S
,
W
a
n
g
Z,
L
iu
M
,
Qi
u
M
.
En
e
rg
y
-
a
wa
re
ro
u
ti
n
g
f
o
r
d
e
l
a
y
-
se
n
siti
v
e
u
n
d
e
rw
a
ter
w
ir
e
les
s
se
n
so
r
n
e
tw
o
rk
s.
S
c
ien
c
e
Ch
in
a
I
n
fo
rm
a
ti
o
n
S
c
ie
n
c
e
s.
2
0
1
4
;
5
7
(
1
0
)
;
1
-
1
4
.
[6
]
A
li
T
,
Ju
n
g
L
T
,
F
a
y
e
I.
En
d
-
to
-
e
n
d
d
e
lay
a
n
d
e
n
e
rg
y
e
ff
icie
n
t
ro
u
ti
n
g
p
ro
to
c
o
l
f
o
r
u
n
d
e
rw
a
ter
w
irele
ss
se
n
so
r
n
e
tw
o
rk
s.
W
ire
le
ss
Per
so
n
a
l
Co
m
mu
n
ica
t
io
n
s
.
2
0
1
4
;
7
9
(
1
);
3
3
9
-
3
6
1
.
[7
]
Hs
u
C
C,
L
iu
H
H,
G
o
m
e
z
J
L
G
,
Ch
o
u
C
F
.
De
la
y
-
S
e
n
siti
v
e
Op
p
o
rt
u
n
isti
c
Ro
u
ti
n
g
f
o
r
Un
d
e
rwa
ter
S
e
n
so
r
Ne
tw
o
rk
s.
S
e
n
so
rs
J
o
u
r
n
a
l
,
IEE
E
.
2
0
1
5
;
1
5
(1
1
);
6
5
8
4
-
6
5
9
1
.
[8
]
Ja
f
ri
M
R,
S
a
n
d
h
u
M
M
,
L
a
ti
f
K,
Kh
a
n
Z
A
,
Ya
sa
r
A
U
H,
Ja
v
a
id
N.
T
o
wa
rd
s
d
e
l
a
y
-
se
n
siti
v
e
ro
u
ti
n
g
i
n
u
n
d
e
rwa
ter
wire
les
s se
n
so
r n
e
two
r
k
s.
P
r
o
c
e
d
ia Co
m
p
u
ter S
c
ien
c
e
.
2
0
1
4
;
3
7
;
2
2
8
-
2
3
5
.
[9
]
F
.
D’A
les
s
a
n
d
ro
,
“
On
t
h
e
o
p
ti
m
u
m
ro
d
g
e
o
m
e
tr
y
f
o
r
p
ra
c
ti
c
a
l
li
g
h
t
n
in
g
p
ro
tec
ti
o
n
sy
ste
m
s,”
J
.
El
e
c
tro
sta
t
.
,
v
o
l
.
6
5
,
n
o
.
2
,
p
p
.
1
1
3
–
1
2
1
,
F
e
b
.
2
0
0
7
.
Evaluation Warning : The document was created with Spire.PDF for Python.