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u
lt
y
m
e
m
b
er
s
.
C
o
m
p
ar
in
g
t
h
e
cita
tio
n
s
f
r
o
m
t
h
e
t
w
o
s
o
u
r
ce
s
s
h
o
u
ld
h
elp
d
eter
m
in
e
w
h
et
h
er
o
n
e
s
o
u
r
ce
is
b
etter
th
an
a
n
o
th
er
o
r
w
h
et
h
er
a
f
r
ee
d
atab
ase
s
u
ch
as
Di
m
e
n
s
io
n
s
co
u
ld
r
ep
lace
Sco
p
u
s
in
P
SU
p
u
b
lis
h
ed
w
o
r
k
s
.
A
l
s
o
,
citatio
n
s
m
a
y
b
e
ad
d
ed
as
a
n
e
w
m
o
ti
v
atio
n
al
d
r
iv
er
to
en
co
u
r
ag
e
P
SU
r
esear
ch
e
r
s
to
p
u
b
lis
h
h
ig
h
-
q
u
alit
y
j
o
u
r
n
al
s
.
Sco
p
u
s
is
an
ab
s
tr
ac
t
an
d
citatio
n
d
atab
ase
cr
ea
ted
b
y
E
ls
ev
ier
in
2
0
0
4
;
it
is
a
b
ib
lio
g
r
ap
h
ic
d
a
ta
s
o
u
r
ce
p
r
o
v
id
in
g
s
cien
tif
ic
d
o
cu
m
en
ts
an
d
citatio
n
lin
k
s
.
Sco
p
u
s
’
s
s
ig
n
if
ican
t
f
ea
tu
r
e
is
th
at
all
ar
ticle
ty
p
es
in
d
ex
all
au
th
o
r
s
,
in
s
titu
tio
n
al
ad
d
r
ess
es,
an
d
b
ib
lio
g
r
ap
h
ic
r
ef
er
en
ce
s
f
o
r
ea
ch
ar
ticle.
T
h
u
s
,
to
d
ate,
Sco
p
u
s
r
em
ain
s
th
e
lead
in
g
s
o
u
r
ce
f
o
r
citatio
n
d
ata
[
9
]
an
d
th
e
m
o
s
t
cr
itical
m
u
ltid
is
cip
lin
ar
y
b
ib
lio
g
r
ap
h
ic
d
atab
ases
[
1
2
]
.
So
m
e
s
tu
d
ies
co
m
p
ar
in
g
Sco
p
u
s
an
d
f
r
ee
citatio
n
d
atab
ases
ar
e
m
ain
ly
f
o
cu
s
ed
o
n
tw
o
asp
ec
ts
:
i)
th
e
co
v
er
ag
e
o
f
th
e
d
atab
ases
an
d
ii)
im
p
ac
t
at
d
if
f
er
en
t
lev
els,
th
e
ac
cu
r
ac
y
o
f
th
e
d
atab
ases
,
r
an
g
in
g
f
r
o
m
in
d
iv
id
u
al
r
esear
ch
er
s
to
in
s
titu
tes
[
1
2
]
,
[
2
9
]
.
Dim
en
s
io
n
s
,
a
f
r
ee
n
ew
o
n
lin
e
ac
ce
s
s
s
ch
o
lar
ly
s
ea
r
ch
d
atab
ase
p
latf
o
r
m
f
o
r
an
an
aly
s
is
to
o
l,
w
as
lau
n
ch
ed
b
y
Dig
ital
Scien
ce
in
J
an
u
ar
y
2
0
1
8
.
T
h
e
lin
k
s
b
etw
ee
n
g
r
an
ts
,
p
u
b
licatio
n
s
,
clin
ical
tr
ials
,
p
aten
ts
,
p
o
licy
d
o
cu
m
en
ts
,
an
d
altim
etr
ic
in
f
o
r
m
atio
n
,
alo
n
g
s
id
e
tr
ad
itio
n
al
p
u
b
licatio
n
s
,
an
d
citatio
n
d
ata,
ar
e
co
r
e
to
Dim
en
s
io
n
s
[
1
8
]
;
[
1
9
]
.
I
n
Sep
tem
b
er
2
0
2
0
,
at
th
e
tim
e
o
f
p
u
b
licatio
n
,
th
e
Dim
en
s
io
n
s
d
atab
ase
in
clu
d
ed
o
v
er
1
1
2
m
illi
o
n
p
u
b
licatio
n
s
an
d
th
eir
citatio
n
s
,
co
n
ten
t
ty
p
es,
i.e
.
,
s
u
ch
as
5
8
2
,
3
9
8
clin
ical
tr
ials
,
4
0
m
illi
o
n
p
aten
ts
,
o
v
er
5
m
illi
o
n
g
r
an
ts
,
an
d
5
4
2
,
2
3
4
p
o
licy
d
o
cu
m
en
ts
.
T
h
e
Dim
en
s
io
n
s
p
latf
o
r
m
m
ak
es
av
ailab
le
to
r
esear
ch
an
aly
s
ts
,
m
an
ag
er
s
,
an
d
p
o
licy
-
m
ak
er
s
[
1
6
]
.
A
lth
o
u
g
h
th
e
n
ew
-
co
m
er
Dim
en
s
io
n
s
w
as
lau
n
ch
ed
in
2
0
1
8
,
it
is
a
s
tr
o
n
g
r
iv
al
o
f
Sco
p
u
s
an
d
is
tr
y
in
g
to
ch
allen
g
e
Sco
p
u
s
’
s
d
o
m
in
an
t
r
o
le.
On
ly
th
r
ee
p
u
b
lis
h
ed
s
tu
d
ies
h
av
e
in
v
esti
g
ated
Dim
en
s
io
n
s
’
co
v
er
ag
e
an
d
co
m
p
ar
ed
it
to
Sco
p
u
s
.
T
h
elw
all
in
st
u
d
y
[
2
1
]
s
h
o
w
ed
th
at
f
o
r
p
u
b
licatio
n
s
in
Fo
o
d
Scien
ce
co
v
er
ag
e
an
d
citatio
n
co
u
n
ts
o
f
Dim
en
s
io
n
s
w
er
e
co
m
p
ar
ab
le
to
Sco
p
u
s
’
s
.
Har
zin
g
[
1
5
]
s
tu
d
ied
a
d
etailed
co
m
p
ar
is
o
n
ac
r
o
s
s
s
ix
d
ata
s
o
u
r
ce
s
f
o
r
an
ac
ad
em
ic’
s
co
m
p
lete
p
u
b
licatio
n
an
d
citatio
n
r
ec
o
r
d
in
th
e
f
ield
o
f
B
u
s
in
ess
an
d
E
co
n
o
m
ics.
A
s
d
em
o
n
s
tr
ated
b
y
Ma
lea
an
d
C
ó
za
r
[
2
0
]
s
h
o
w
ed
Dim
en
s
io
n
s
’
co
v
er
ag
e
an
aly
s
is
co
m
p
ar
ed
to
Sco
p
u
s
an
d
Go
o
g
le
Sch
o
lar
to
d
eter
m
in
e
w
h
eth
er
Dim
en
s
io
n
s
o
f
f
er
ed
th
e
b
ib
lio
m
etr
ic
in
d
icato
r
s
h
av
e
s
ig
n
if
ican
t
en
o
u
g
h
to
b
e
u
s
ed
.
T
h
e
r
esu
lts
co
n
clu
d
ed
th
at
Dim
en
s
io
n
s
h
as
co
v
er
ag
e
o
f
th
e
r
ec
en
t
liter
atu
r
e
s
u
p
er
io
r
to
Sco
p
u
s
an
d
th
e
n
u
m
b
er
o
f
cit
atio
n
s
in
Dim
en
s
io
n
s
ex
h
ib
ited
a
s
tr
o
n
g
co
r
r
elatio
n
w
ith
Sco
p
u
s
.
A
ls
o
,
Dim
en
s
io
n
s
is
an
alter
n
ativ
e
f
o
r
ca
r
r
y
in
g
o
u
t
citatio
n
s
tu
d
ies
co
m
p
etin
g
w
ith
Sco
p
u
s
in
m
o
r
e
g
en
er
o
u
s
co
v
er
ag
e
an
d
f
r
ee
o
f
ch
ar
g
e
[
2
0
]
.
Sin
g
h
et
a
l.
[
3
0
]
ex
p
lo
r
ed
th
e
Dim
en
s
io
n
s
f
ea
tu
r
es
an
d
f
o
u
n
d
tw
o
ex
citin
g
f
ea
tu
r
es
as
a
co
m
p
etito
r
to
w
e
b
o
f
s
cien
ce
an
d
Sco
p
u
s
an
d
r
esear
ch
ass
ess
m
en
t.
T
h
is
s
tu
d
y
[
3
0
]
h
as
also
s
h
o
w
n
th
at
Dim
en
s
io
n
s
m
ay
p
r
o
v
id
e
a
r
ea
d
y
-
to
-
u
s
e
m
ec
h
an
is
m
f
o
r
ev
alu
ato
r
s
f
r
o
m
a
s
p
ec
if
ic
co
u
n
tr
y
to
ass
ess
v
ar
io
u
s
in
s
titu
tio
n
s
’
r
esear
ch
p
er
f
o
r
m
an
ce
u
s
in
g
th
eir
co
u
n
tr
y
j
o
u
r
n
al
lis
ts
.
T
h
is
s
tu
d
y
m
ay
also
class
if
y
ar
ticles
in
to
v
ar
io
u
s
s
u
b
j
ec
t
ar
ea
s
m
o
r
e
p
r
ec
is
ely
an
d
s
u
b
j
ec
t
-
s
p
ec
if
ic
r
esear
ch
p
er
f
o
r
m
an
ce
ev
alu
atio
n
s
m
o
r
e
in
f
o
r
m
ed
.
Dim
en
s
io
n
s
w
as
in
clu
d
ed
in
a
r
ec
en
t
s
tu
d
y
co
m
p
ar
in
g
v
ar
io
u
s
asp
ec
ts
u
n
til
n
o
w
o
f
s
ev
er
al
o
ld
an
d
n
ew
s
ch
o
lar
ly
d
atab
ases
.
So
m
e
co
m
p
ar
ativ
e
s
tu
d
ies
h
av
e
an
aly
ze
d
Dim
en
s
io
n
s
f
r
o
m
a
s
cien
to
m
etr
ic
p
er
s
p
ec
tiv
e
[
1
8
]
.
Ho
w
ev
er
,
n
o
em
p
ir
ical
s
tu
d
y
h
as
b
ee
n
co
n
d
u
cted
f
o
cu
s
in
g
o
n
citatio
n
an
aly
s
is
o
f
P
SU
p
u
b
licatio
n
s
in
Dim
en
s
io
n
s
an
d
Sco
p
u
s
in
ac
ad
em
ic
p
ap
er
s
.
So
m
e
q
u
esti
o
n
s
ar
e
in
ter
esti
n
g
f
o
r
in
v
esti
g
atio
n
:
i)
I
s
Dim
en
s
io
n
s
th
r
ea
ten
in
g
th
e
d
o
m
in
atin
g
r
o
le
o
f
Sco
p
u
s
?
;
a
n
d
ii)
d
o
th
e
r
esear
ch
er
s
f
r
o
m
d
if
f
er
en
t
co
u
n
tr
ies
an
d
r
esear
ch
f
ield
s
h
av
e
an
y
p
r
ef
er
en
ce
in
ch
o
o
s
in
g
th
ese
tw
o
d
atab
ases
?
Giv
en
Dim
en
s
io
n
s
’
p
o
ten
tial
u
tili
ty
in
r
esear
ch
ass
ess
m
en
ts
,
it
is
cr
itical
to
ev
alu
ate
its
f
u
n
d
am
en
tal
p
r
o
p
er
ties
to
s
ee
if
it
h
as
en
o
u
g
h
d
ata
to
b
e
v
alid
an
d
if
its
citatio
n
co
u
n
ts
ar
e
ac
cu
r
ate
[
2
1
]
.
T
h
u
s
,
th
is
s
tu
d
y
attem
p
ts
to
p
r
esen
t
an
alter
n
ativ
e
ap
p
r
o
ac
h
to
an
aly
zin
g
th
e
tw
o
d
atab
ases
’
j
o
u
r
n
al
co
v
er
ag
e
(
Dim
en
s
io
n
s
an
d
Sco
p
u
s
)
.
W
e
u
s
ed
th
e
d
ir
ec
t
co
m
p
ar
is
o
n
o
f
o
v
er
lap
p
in
g
in
all
tw
o
d
atab
ases
an
d
an
aly
ze
d
th
e
im
p
ac
t
th
e
co
v
er
ag
e
v
ar
iatio
n
s
m
ay
h
av
e
o
n
ac
ad
em
ic
r
esear
ch
p
u
b
licatio
n
an
d
citatio
n
r
ec
o
r
d
an
d
af
f
iliatio
n
s
ea
r
ch
es
in
th
e
f
ield
“
P
r
in
ce
o
f
So
n
g
k
la
Un
iv
er
s
ity
.
”
T
h
e
f
o
llo
w
in
g
ch
ar
ac
ter
is
tics
ar
e
o
f
p
ar
ticu
lar
in
ter
est:
i)
d
is
tr
ib
u
tio
n
o
f
d
ig
ital
o
b
j
ec
t
id
en
tif
ier
(
DOI
s
)
ac
r
o
s
s
s
o
u
r
ce
s
,
ii)
d
if
f
er
en
ce
s
r
ec
o
r
d
ed
b
y
ea
ch
s
o
u
r
ce
in
th
e
y
ea
r
o
f
p
u
b
licatio
n
,
iii)
citatio
n
co
u
n
ts
ca
lcu
lated
ac
r
o
s
s
s
o
u
r
ce
s
,
an
d
i
v
)
r
elatio
n
s
h
ip
o
f
av
er
ag
e
citatio
n
co
u
n
ts
in
ter
m
s
o
f
Sp
ea
r
m
an
’
s
co
r
r
elatio
n
.
No
s
tu
d
y
h
as
co
m
p
ar
ed
P
SU
p
u
b
licatio
n
s
o
u
tp
u
t
in
th
e
tw
o
d
atab
ases
.
T
h
is
r
esear
ch
aim
s
to
f
ill
th
e
g
ap
ac
r
o
s
s
th
e
s
tu
d
y
o
f
P
SU
as
d
ep
icted
in
r
ep
u
ted
in
ter
n
atio
n
al
u
n
iv
er
s
ity
r
an
k
in
g
s
y
s
tem
s
.
Mo
r
eo
v
er
,
to
co
n
d
u
ct
a
co
m
p
ar
ativ
e
an
d
em
p
ir
ical
an
aly
s
is
f
o
cu
s
in
g
o
n
Dim
en
s
io
n
s
an
d
Sco
p
u
s
in
P
SU r
esear
ch
o
u
tp
u
ts
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
12
,
No
.
1
,
Feb
r
u
ar
y
20
22
:
7
0
6
-
720
708
2.
RE
S
E
ARCH
M
E
T
H
O
D
Statis
t
ical
an
al
y
s
is
a
n
d
a
d
escr
ip
tiv
e
-
a
n
al
y
tical
m
et
h
o
d
w
er
e
u
s
ed
to
co
n
d
u
ct
t
h
is
s
tu
d
y
.
Mic
r
o
s
o
f
t
E
x
ce
l
s
o
f
t
w
ar
e,
SP
SS
,
an
d
R
s
tatis
tical
p
r
o
g
r
a
m
m
i
n
g
lan
g
u
ag
e
w
er
e
u
s
ed
f
o
r
d
ata
an
al
y
s
i
s
an
d
in
ter
p
r
etatio
n
s
.
Da
ta
w
er
e
o
b
tain
ed
b
y
m
u
ltip
le
Di
m
e
n
s
io
n
s
a
n
d
Sco
p
u
s
s
ea
r
ch
e
s
as
s
h
o
w
n
i
n
Fig
u
r
e
1
.
P
r
in
ce
o
f
So
n
g
k
la
U
n
i
v
er
s
it
y
w
a
s
u
s
ed
as
a
cr
i
tical
ter
m
i
n
Di
m
e
n
s
io
n
s
’
o
r
g
a
n
izati
o
n
s
ea
r
ch
f
ield
an
d
Sco
p
u
s
’
s
a
f
f
iliatio
n
f
ield
.
A
d
v
an
ce
d
s
ea
r
c
h
es
t
h
r
o
u
g
h
d
i
f
f
e
r
en
t
d
atab
ases
w
er
e
u
s
ed
to
f
i
n
d
s
ch
o
lar
l
y
p
ap
er
s
af
f
iliated
w
it
h
th
e
u
n
i
v
er
s
i
t
y
.
A
ll
p
u
b
licatio
n
s
af
f
iliated
to
t
h
e
P
r
in
ce
o
f
So
n
g
k
la
U
n
i
v
er
s
it
y
s
i
n
ce
th
e
i
n
it
ial
in
cl
u
s
io
n
o
f
P
SU
-
au
th
o
r
ed
p
u
b
licatio
n
s
w
er
e
co
n
s
id
er
ed
f
o
r
s
tu
d
y
;
t
h
er
e
w
a
s
n
o
s
a
m
p
lin
g
.
E
ac
h
o
f
t
h
e
p
u
b
licatio
n
s
w
a
s
an
al
y
ze
d
f
o
r
th
e
au
t
h
o
r
s
’
n
a
m
es a
n
d
th
e
n
u
m
b
er
o
f
a
u
t
h
o
r
s
an
d
th
e
ir
af
f
il
iatio
n
s
.
Fig
u
r
e
1
.
Vis
u
al
r
ep
r
esen
tatio
n
o
f
t
h
e
d
o
cu
m
e
n
ts
a
n
d
citatio
n
co
u
n
ts
a
n
al
y
ze
d
i
n
th
is
s
t
u
d
y
2
.
1
.
Da
t
a
c
o
llect
io
n
T
h
er
e
w
as
n
o
s
a
m
p
li
n
g
p
r
o
ce
d
u
r
e
co
n
d
u
cted
i
n
t
h
is
s
t
u
d
y
.
B
y
t
h
e
en
d
o
f
J
u
n
e
2
0
2
0
,
ar
ticles
p
u
b
lis
h
ed
i
n
Di
m
e
n
s
io
n
s
an
d
Sco
p
u
s
b
y
s
c
h
o
lar
s
at
P
r
in
c
e
o
f
So
n
g
k
l
a
Un
i
v
er
s
it
y
w
er
e
in
v
e
s
ti
g
ated
.
T
h
e
r
eq
u
ir
ed
d
ata
w
er
e
co
llected
f
r
o
m
th
e
Di
m
en
s
io
n
s
a
n
d
t
h
e
Sco
p
u
s
as
s
h
o
w
n
in
T
ab
le
1
.
T
o
ex
tr
ac
t
th
e
r
eq
u
ir
ed
d
ata,
tw
o
s
i
g
n
i
f
ican
t step
s
ar
e
as f
o
llo
w
s
:
T
a
b
le 1
.
Nu
m
b
e
r
o
f
d
o
c
u
m
e
n
ts r
e
tri
e
v
e
d
b
y
S
c
o
p
u
s (1
9
7
8
-
2
0
2
0
)
a
n
d
Dim
e
n
sio
n
s (1
9
7
0
-
2
0
2
0
)
S
c
o
p
u
s
(
1
9
7
8
-
2
0
2
0
)
D
i
me
n
si
o
n
s
(
1
9
7
0
-
2
0
2
0
)
D
o
c
u
me
n
t
T
y
p
e
s
N
o
.
o
f
D
o
c
u
me
n
t
s
%
D
o
c
u
me
n
t
T
y
p
e
s
N
o
.
o
f
D
o
c
u
me
n
t
s
%
A
r
t
i
c
l
e
1
1
,
4
8
7
8
4
.
6
1
A
r
t
i
c
l
e
1
7
,
9
7
7
9
0
.
5
9
C
o
n
f
e
r
e
n
c
e
P
a
p
e
r
1
,
4
3
0
1
0
.
5
3
P
r
o
c
e
e
d
i
n
g
s
8
4
5
4
.
2
6
R
e
v
i
e
w
3
6
2
2
.
6
7
C
h
a
p
t
e
r
6
5
4
3
.
2
9
B
o
o
k
C
h
a
p
t
e
r
1
0
6
0
.
7
8
Ed
i
t
e
d
B
o
o
k
2
3
8
1
.
2
0
L
e
t
t
e
r
64
0
.
4
7
M
o
n
o
g
r
a
p
h
67
0
.
3
4
N
o
t
e
43
0
.
3
2
P
r
e
p
r
i
n
t
64
0
.
3
2
Er
r
a
t
u
m
38
0
.
2
8
T
o
t
a
l
1
9
,
8
4
6
1
0
0
Ed
i
t
o
r
i
a
l
24
0
.
1
8
S
h
o
r
t
S
u
r
v
e
y
11
0
.
0
8
B
o
o
k
3
0
.
0
2
D
a
t
a
P
a
p
e
r
3
0
.
0
2
U
n
d
e
f
i
n
e
d
6
0
.
0
4
T
o
t
a
l
1
3
,
5
7
7
1
0
0
2
.
1
.
1
.
Da
t
a
ex
t
ra
ct
io
n f
ro
m
Di
m
en
s
io
ns
P
r
in
ce
o
f
So
n
g
k
la
Un
i
v
er
s
i
t
y
w
as
s
ea
r
ch
ed
in
to
th
e
s
ea
r
ch
s
ec
tio
n
b
ased
o
n
Dim
en
s
io
n
s
’
o
r
g
an
izatio
n
al
a
f
f
iliatio
n
to
e
x
tr
ac
t
t
h
e
t
itles
.
A
r
ticles
w
er
e
r
ev
ie
w
ed
d
u
e
to
t
h
e
v
ar
iet
y
o
f
w
r
iti
n
g
s
t
y
le
s
a
m
o
n
g
th
e
w
r
iter
s
.
T
h
e
s
tu
d
y
n
ee
d
s
to
id
en
ti
f
y
t
h
o
s
e
af
f
i
liat
ed
w
it
h
th
e
u
n
i
v
er
s
i
t
y
.
I
n
t
h
e
p
ap
er
s
’
av
ailab
ilit
y
,
1
8
,
8
2
2
d
o
cu
m
e
n
ts
o
f
ar
ticle
a
n
d
p
r
o
ce
ed
in
g
s
p
ap
er
s
w
er
e
a
d
d
ed
to
th
e
d
ata
ex
tr
ac
te
d
,
s
e
e
s
tep
s
1
an
d
2
in
Fig
u
r
e
1
.
T
h
e
d
ata
w
as
clea
n
ed
ag
ai
n
b
y
e
x
a
m
in
in
g
t
h
e
u
n
i
v
er
s
i
t
y
’
s
o
r
g
an
iza
tio
n
al
a
f
f
iliat
io
n
(
s
tep
3
as
s
h
o
w
n
in
F
ig
u
r
e
1
)
1
1
,
4
1
2
d
o
c
u
m
e
n
t
s
.
2
.
1
.
2
.
Da
t
a
ex
t
ra
ct
io
n f
ro
m
Sco
pu
s
R
esear
ch
p
u
b
licatio
n
s
b
y
P
S
U
s
tar
ted
to
b
e
in
d
e
x
ed
i
n
Sc
o
p
u
s
i
n
1
9
7
8
.
T
h
e
liter
atu
r
e
d
ata
u
s
ed
i
n
th
is
s
t
u
d
y
w
er
e
co
llected
u
s
i
n
g
th
e
Sco
p
u
s
d
atab
ase
b
y
s
ea
r
ch
in
g
i
n
Sco
p
u
s
o
n
J
u
n
e
3
0
,
2
0
2
0
.
T
h
e
p
er
io
d
ti
m
e
o
f
t
h
is
s
t
u
d
y
w
a
s
o
v
er
3
0
-
y
ea
r
s
p
er
io
d
,
1
9
7
8
-
2
0
2
0
,
an
d
th
e
s
p
ec
if
ica
tio
n
s
s
ea
r
ch
ed
:
A
FF
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L
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d
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m
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t
h
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tep
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g
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r
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.
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ev
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w
,
b
o
o
k
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ter
,
letter
,
n
o
te,
er
r
atu
m
,
ed
ito
r
i
al,
s
h
o
r
t
s
u
r
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y
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an
d
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t
h
er
d
o
cu
m
en
t
t
y
p
es
w
er
e
ex
cl
u
d
ed
.
E
ac
h
ar
ticle’
s
in
f
o
r
m
atio
n
w
as
s
a
v
ed
i
n
a
n
e
x
ce
l
f
i
le
[
3
1
]
to
b
e
an
al
y
z
ed
in
t
h
e
f
i
n
al
s
ta
g
e.
T
h
e
ex
tr
ac
ted
in
f
o
r
m
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n
in
cl
u
d
es
titl
e,
a
u
t
h
o
r
s
,
au
th
o
r
’
s
a
f
f
iliat
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n
s
w
it
h
P
r
in
ce
o
f
So
n
g
k
la
U
n
i
v
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s
it
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y
ea
r
o
f
p
u
b
licatio
n
,
t
y
p
e
o
f
ar
ticle,
n
a
m
e
o
f
th
e
j
o
u
r
n
al,
an
d
th
e
n
u
m
b
er
o
f
citatio
n
s
o
f
ea
ch
ar
ticle.
2
.
2
.
O
bje
c
t
iv
es/resea
rc
h que
s
t
io
ns
a
nd
s
t
a
t
is
t
ica
l a
na
ly
s
is
T
h
er
e
w
as
n
o
s
tu
d
y
co
m
p
ar
in
g
th
e
p
r
o
d
u
ctiv
ity
an
d
im
p
ac
t
o
f
P
SU
r
esear
ch
er
s
o
n
Dim
en
s
io
n
s
an
d
Sco
p
u
s
.
T
h
is
r
esear
ch
aim
ed
to
co
m
p
ar
e
th
e
co
v
er
ag
e
o
f
Dim
en
s
io
n
s
w
ith
th
e
co
v
er
ag
e
o
f
Sco
p
u
s
at
th
e
u
n
iv
er
s
ity
lev
el
f
o
r
r
esear
ch
p
r
o
d
u
ctiv
ity
.
T
h
e
q
u
esti
o
n
s
p
o
s
ed
w
er
e
as
f
o
llo
w
s
:
a.
R
Q1
:
w
h
at
is
th
e
tr
en
d
o
f
s
ch
o
lar
ly
p
ap
er
s
au
th
o
r
ed
o
r
co
-
au
th
o
r
ed
in
d
ex
ed
in
Dim
en
s
io
n
s
an
d
Sco
p
u
s
?
b.
R
Q2
:
h
o
w
m
u
ch
co
v
er
ag
e
is
th
er
e
b
etw
ee
n
Dim
en
s
io
n
s
an
d
Sco
p
u
s
o
n
ar
ticle
s
w
ith
DOI
s
an
d
citatio
n
d
ata?
c.
R
Q3
:
a
r
e
th
er
e
an
y
m
ea
n
in
g
f
u
l
r
elatio
n
s
h
ip
s
in
th
e
av
er
ag
e
citatio
n
co
u
n
ts
f
o
r
ed
u
ca
tio
n
al
d
o
cu
m
en
ts
in
Dim
en
s
io
n
s
co
m
p
ar
ab
le
to
Sco
p
u
s
?
d.
R
Q4
:
a
r
e
citatio
n
co
u
n
t
s
o
f
s
ch
o
lar
l
y
d
o
cu
m
en
ts
i
n
Di
m
e
n
s
io
n
s
i
n
ter
c
h
an
g
ea
b
le
w
it
h
Sc
o
p
u
s
r
eg
ar
d
in
g
h
av
i
n
g
a
to
o
h
ig
h
co
r
r
elatio
n
?
T
o
r
ea
ch
th
is
s
tu
d
y
’
s
ai
m
s
,
d
escr
ip
tiv
e
s
tati
s
tics
,
i.e
.
,
g
eo
m
etr
ic
m
ea
n
,
ex
p
o
n
e
n
tial
r
eg
r
ess
io
n
test
,
an
d
co
r
r
elatio
n
tes
t,
w
er
e
u
s
ed
to
an
al
y
ze
d
ata
i
n
E
x
ce
l
an
d
R
v
er
s
io
n
4
.
0
.
2
.
T
o
r
e
s
p
o
n
d
to
R
Q1
,
t
h
e
d
o
cu
m
en
t
t
y
p
es a
n
d
citat
io
n
c
o
u
n
t
o
f
th
e
citi
n
g
d
o
cu
m
en
t
s
i
n
o
u
r
s
a
m
p
le
(
s
tep
4
in
Fi
g
u
r
e
1
)
w
er
e
a
g
g
r
eg
ate
d
o
r
av
er
ag
ed
b
y
d
if
f
er
e
n
tiati
n
g
b
et
w
ee
n
u
n
iq
u
e
Di
m
e
n
s
io
n
s
citatio
n
s
an
d
o
v
er
lap
p
in
g
cit
atio
n
s
.
T
o
r
ep
ly
to
R
Q2
,
Di
m
e
n
s
io
n
s
’
co
v
er
ag
e
w
a
s
co
m
p
ar
ed
to
Sco
p
u
s
b
y
m
ea
s
u
r
in
g
t
h
e
p
er
ce
n
ta
g
e
o
f
Sco
p
u
s
d
o
cu
m
en
t
s
w
it
h
D
OI
th
at
w
er
e
also
i
n
Di
m
e
n
s
io
n
s
p
er
y
ea
r
(
s
tep
4
in
Fi
g
u
r
e
1
)
.
Mo
r
eo
v
er
,
r
ep
o
r
t
th
e
s
ize
o
f
th
e
o
v
er
lap
s
.
A
d
d
itio
n
all
y
,
th
e
c
au
s
e
s
o
f
w
h
y
t
h
e
s
e
d
o
cu
m
e
n
ts
w
er
e
n
o
t
co
v
er
ed
ar
e
p
r
o
v
id
ed
.
P
u
b
licatio
n
s
b
ef
o
r
e
1
9
8
5
w
er
e
n
o
t
co
n
s
id
er
ed
b
ec
au
s
e
o
f
th
e
l
i
m
ited
co
v
er
ag
e
o
f
th
e
s
e
p
u
b
licatio
n
s
i
n
Di
m
en
s
io
n
s
.
T
h
e
citin
g
d
o
cu
m
e
n
t
s
f
r
o
m
b
o
th
w
er
e
m
a
tch
ed
to
g
at
h
er
an
d
co
m
p
u
te
citatio
n
o
v
er
lap
s
f
r
o
m
t
w
o
d
if
f
er
en
t
d
ata
s
ets
(
Di
m
e
n
s
io
n
s
a
n
d
Sco
p
u
s
)
.
T
h
e
m
atc
h
i
n
g
p
r
o
ce
s
s
s
tar
te
d
w
it
h
atte
m
p
ti
n
g
to
m
atc
h
p
u
b
licatio
n
s
b
ased
o
n
DOI
.
I
f
n
o
DOI
-
b
ased
m
atc
h
co
u
ld
b
e
o
b
tain
ed
,
a
m
atc
h
was
atte
m
p
ted
f
o
r
t
h
e
titl
e
’
s
n
a
m
e.
T
o
an
s
w
er
R
Q3
,
th
e
g
eo
m
etr
ic
m
ea
n
cita
tio
n
co
u
n
ts
f
o
r
Di
m
en
s
io
n
s
f
o
r
ea
ch
y
ea
r
w
er
e
co
m
p
ar
ed
ag
ain
s
t
Sco
p
u
s
.
T
h
e
g
eo
m
etr
ic
m
ea
n
i
s
s
tr
o
n
g
er
th
an
th
e
ar
it
h
m
etic
m
ea
n
b
ec
au
s
e
citatio
n
d
ata
is
h
ig
h
l
y
s
k
e
wed
[
2
1
]
.
T
o
an
s
w
er
R
Q4
,
Sp
ea
r
m
a
n
co
r
r
elatio
n
co
ef
f
icien
ts
w
er
e
ca
lc
u
lated
f
o
r
t
h
e
cita
tio
n
co
u
n
ts
o
f
th
e
citi
n
g
d
o
cu
m
e
n
t
s
i
n
o
u
r
s
a
m
p
le
(
s
tep
5
in
Fig
u
r
e
1
)
.
I
n
th
i
s
ca
s
e,
citatio
n
co
u
n
ts
f
r
o
m
Di
m
e
n
s
io
n
s
an
d
Sco
p
u
s
w
er
e
co
m
p
ar
ed
f
o
r
ea
ch
y
ea
r
u
s
in
g
Sp
ea
r
m
an
c
o
r
r
elatio
n
s
.
Fo
r
d
ata
n
o
t
f
o
u
n
d
in
Di
m
en
s
io
n
s
,
w
it
h
a
n
d
w
it
h
o
u
t
ar
ticles,
th
e
co
r
r
elatio
n
s
w
er
e
ca
lc
u
lated
a
s
f
o
r
R
Q3
.
T
h
e
r
a
w
d
ata,
cu
s
t
o
m
f
u
n
ctio
n
s
i
n
E
x
ce
l,
t
h
e
R
co
d
e,
an
d
s
ev
er
al
R
p
ac
k
ag
es
w
er
e
u
s
ed
f
o
r
th
e
a
n
al
y
s
i
s
to
ca
r
r
y
o
u
t a
ll t
h
ese
p
r
o
ce
s
s
es.
3.
RE
SU
L
T
S
A
ND
D
I
SCU
SS
I
O
N
3
.
1
.
Wha
t
is
t
he
t
re
nd
o
f
s
cho
la
rly
pa
pers
a
utho
re
d
o
r
c
o
-
a
utho
re
d
ind
ex
e
d
in
Di
m
e
ns
io
n
s
a
nd
Sco
pu
s
?
T
h
e
to
tal
s
c
h
o
lar
l
y
p
ap
er
s
b
y
f
ac
u
lt
y
m
e
m
b
er
s
o
f
P
r
in
c
e
o
f
So
n
g
k
la
U
n
i
v
er
s
it
y
ar
e
s
h
o
w
n
in
T
ab
le
2
,
Fig
u
r
e
2
,
an
d
Fig
u
r
e
3
b
y
y
ea
r
o
f
p
u
b
licatio
n
an
d
g
r
o
w
t
h
r
ate.
P
u
b
licatio
n
s
b
y
a
u
th
o
r
s
f
r
o
m
P
r
in
ce
o
f
So
n
g
k
la
U
n
iv
er
s
it
y
f
ir
s
t
a
p
p
ea
r
ed
in
Di
m
e
n
s
io
n
s
in
1
9
7
0
a
n
d
1
9
7
8
in
Sco
p
u
s
.
Ov
e
r
th
e
p
er
io
d
u
n
d
er
co
n
s
id
er
atio
n
,
1
1
,
4
1
2
d
o
cu
m
e
n
ts
in
Di
m
en
s
io
n
s
an
d
1
2
,
9
1
5
in
Sco
p
u
s
w
er
e
p
u
b
li
s
h
ed
b
y
P
SU
r
esear
ch
er
s
.
A
cc
o
r
d
in
g
to
T
ab
le
1
,
1
,
5
0
3
m
o
r
e
p
u
b
licatio
n
s
w
er
e
in
d
ex
ed
b
y
Sco
p
u
s
th
a
n
w
er
e
b
y
Di
m
en
s
io
n
s
.
T
h
e
n
u
m
b
er
o
f
p
ap
er
s
in
clu
d
ed
w
a
s
lo
w
u
n
t
il
1
9
8
5
;
th
e
p
u
b
licatio
n
s
’
r
ate
h
as
s
i
n
ce
i
n
cr
ea
s
ed
r
eg
u
lar
l
y
.
A
s
i
m
ilar
g
r
o
w
t
h
r
ate
w
a
s
f
o
u
n
d
in
b
o
t
h
d
atab
ases
,
esp
ec
ial
l
y
i
n
t
h
e
later
y
ea
r
s
.
An
e
x
p
o
n
en
tia
l
f
u
n
ctio
n
ca
n
d
escr
ib
e
th
e
y
ea
r
l
y
g
r
o
w
t
h
r
ate
o
f
p
u
b
licatio
n
s
:
=
,
w
h
er
e
is
a
co
n
s
tan
t
v
al
u
e,
is
th
e
g
r
o
w
t
h
r
ate
o
f
p
u
b
licatio
n
s
in
(
y
ea
r
)
,
an
d
e
i
s
th
e
n
at
u
r
al
f
o
u
n
d
atio
n
lo
g
ar
i
th
m
.
2
f
o
r
a
n
o
n
li
n
ea
r
least
-
s
q
u
ar
es
r
eg
r
ess
io
n
s
h
o
w
s
th
e
test
r
es
u
lts
’
s
i
g
n
i
f
ic
an
ce
le
v
el.
As
s
h
o
w
n
i
n
Fi
g
u
r
e
2
,
o
v
er
th
e
y
ea
r
s
ex
a
m
i
n
ed
,
th
e
n
u
m
b
er
o
f
P
SU
p
u
b
licatio
n
s
h
as
in
cr
ea
s
ed
.
A
1
5
.
3
2
%
g
r
o
w
t
h
r
ate
f
o
r
P
SU
p
u
b
licatio
n
s
i
n
Di
m
e
n
s
io
n
s
a
n
d
a
1
4
.
8
5
%
g
r
o
w
t
h
r
ate
in
Sco
p
u
s
w
er
e
s
h
o
w
n
i
n
th
e
ex
p
o
n
e
n
tial
r
eg
r
es
s
io
n
r
ep
o
r
t.
C
o
m
p
ar
in
g
th
e
t
w
o
d
atab
ases
s
h
o
w
s
th
at
t
h
e
in
cr
ea
s
e
r
ate
(
ex
p
o
n
e
n
t
ial
tr
en
d
lin
e)
in
b
o
th
d
ata
s
o
u
r
ce
s
i
s
al
m
o
s
t
id
en
tical.
Ov
er
all,
t
h
e
n
u
m
b
er
o
f
P
SU
’
s
p
u
b
licatio
n
s
in
Sco
p
u
s
i
s
ab
o
u
t
1
.
1
3
tim
e
s
h
ig
h
er
t
h
an
th
at
o
f
Di
m
en
s
io
n
s
.
Ho
w
e
v
e
r
,
th
e
n
u
m
b
er
o
f
p
u
b
licatio
n
s
i
s
asce
n
d
in
g
eq
u
a
ll
y
i
n
b
o
th
d
atab
ases
o
v
er
th
e
l
ast t
w
e
n
t
y
y
ea
r
s
.
B
ased
o
n
th
e
r
esu
lt
s
in
T
ab
le
2
an
d
Fig
u
r
e
3
,
P
SU
p
u
b
licatio
n
s
in
Sco
p
u
s
(
1
6
8
,
0
8
2
)
h
av
e
r
ec
eiv
ed
m
o
r
e
ci
tatio
n
s
t
h
an
D
i
m
e
n
s
io
n
s
’
p
u
b
licat
io
n
s
(
1
5
2
,
3
9
7
)
.
H
o
w
e
v
er
,
th
e
n
u
m
b
er
o
f
cita
tio
n
s
p
er
p
u
b
licatio
n
i
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
12
,
No
.
1
,
Feb
r
u
ar
y
20
22
:
7
0
6
-
720
710
s
lig
h
tl
y
h
i
g
h
er
in
Di
m
en
s
io
n
s
(
1
3
.
3
5
)
th
an
in
Sco
p
u
s
(
1
3
.
0
1
)
.
T
h
is
f
i
n
d
in
g
is
co
n
s
is
te
n
t
w
it
h
th
at
o
f
[
3
0
]
r
ep
o
r
ted
a
h
ig
h
er
cited
v
alu
e
f
o
r
Sco
p
u
s
th
an
D
i
m
e
n
s
io
n
s
.
B
ased
o
n
th
e
f
i
n
d
i
n
g
s
in
T
ab
le
3
an
d
Fig
u
r
e
4
,
th
e
n
u
m
b
er
o
f
cited
p
u
b
licatio
n
s
in
Di
m
e
n
s
io
n
an
d
Sco
p
u
s
is
r
is
i
n
g
o
v
er
th
e
y
ea
r
s
b
u
t
n
o
t
in
r
ec
en
t
y
ea
r
s
.
T
h
e
r
e
s
u
lt
s
s
h
o
w
ed
th
a
t
in
Sco
p
u
s
,
t
h
e
n
u
m
b
er
o
f
cited
p
u
b
licatio
n
s
is
s
li
g
h
tl
y
h
ig
h
er
th
an
i
n
Di
m
e
n
s
io
n
s
.
A
b
o
u
t
7
9
.
1
4
%
o
f
th
e
to
tal
P
SU
p
u
b
lica
tio
n
s
in
Sco
p
u
s
ar
e
cited
,
w
h
ile
th
i
s
p
er
ce
n
ta
g
e
i
n
Di
m
e
n
s
io
n
s
is
ab
o
u
t
7
8
.
2
9
%.
So
m
e
p
ap
e
r
s
h
av
e
n
e
v
er
b
ee
n
cited
.
T
h
is
s
tat
u
s
is
r
ef
er
r
ed
to
as
a
n
o
n
-
cited
p
u
b
licatio
n
th
at
s
h
o
w
s
t
h
e
n
u
m
b
er
o
f
p
u
b
licatio
n
s
th
at
d
o
n
o
t
af
f
ec
t
th
e
ir
ass
o
ciate
d
co
m
m
u
n
it
y
.
As
s
h
o
w
n
i
n
Fi
g
u
r
e
4
,
th
e
n
u
m
b
er
o
f
n
o
n
-
cited
p
u
b
licatio
n
s
is
g
r
o
w
i
n
g
i
n
b
o
th
d
atab
ases
.
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I
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I
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N:
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