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[
1
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b
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[
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4
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[
5
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-
[
7
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.
T
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[
5
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.
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t
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s
am
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th
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Evaluation Warning : The document was created with Spire.PDF for Python.
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I
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J
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&
C
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p
Sci
,
Vo
l.
25
,
No
.
1
,
J
an
u
ar
y
20
22
:
79
-
88
80
cu
r
r
en
t
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n
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r
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8
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9
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.
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ap
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m
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ield
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ch
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lo
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p
s
[
10
]
,
Fly
wh
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l
en
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g
y
s
to
r
ag
e
[
4
]
.
T
h
e
r
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t
o
r
r
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e
m
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.
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m
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t
co
m
m
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d
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r
(
MCD)
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th
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in
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m
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with
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[
5
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[
11
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,
[
12
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.
I
n
th
is
p
ap
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,
in
teg
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d
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f
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im
p
le
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1
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T
h
e
m
o
s
t
r
ec
en
t
s
tu
d
ies
ab
o
u
t
b
ea
r
in
g
less
B
L
DC
m
o
t
o
r
.
Qin
an
d
Z
h
u
[
13
]
in
tr
o
d
u
ce
s
th
e
m
ath
em
atica
l
m
o
d
el
o
f
le
v
itatio
n
f
o
r
ce
s
,
wh
ic
h
s
h
o
ws
th
at
th
e
lev
itatio
n
f
o
r
ce
s
ar
e
in
d
ep
en
d
en
t
o
f
th
e
to
r
q
u
e
.
T
o
r
ed
u
ce
c
o
g
g
in
g
to
r
q
u
e
a
n
d
in
c
r
ea
s
e
m
o
to
r
p
er
f
o
r
m
a
n
ce
,
ad
ju
s
tm
en
ts
ar
e
ca
r
r
ied
o
u
t
f
o
r
its
p
r
im
a
r
y
p
ar
am
eter
s
.
T
h
e
to
r
q
u
e
a
n
d
l
ev
itatio
n
f
o
r
ce
s
ca
n
b
e
d
esig
n
ed
in
d
e
p
en
d
e
n
tly
an
d
c
o
n
tr
o
lled
with
th
e
h
ig
h
p
r
ec
is
io
n
co
n
tr
o
l
s
y
s
tem
.
I
n
ad
d
itio
n
,
th
e
b
ea
r
in
g
less
B
L
DC
'
s
b
asic
s
tr
u
ctu
r
e
an
d
o
p
e
r
atio
n
c
o
n
ce
p
t
ar
e
an
aly
ze
d
in
d
etail.
T
u
et
a
l.
[
14
]
in
tr
o
d
u
ce
s
th
e
co
m
p
o
s
itio
n
o
f
an
in
n
er
s
tato
r
win
d
i
n
g
f
o
r
l
ev
itatio
n
f
o
r
ce
a
n
d
o
u
ter
s
tato
r
win
d
in
g
s
f
o
r
th
e
to
r
q
u
e.
T
h
e
m
ath
em
atica
l
m
o
d
el
o
f
th
e
lev
itatio
n
f
o
r
ce
s
is
d
ed
u
ce
d
,
a
n
d
th
e
o
p
tim
izatio
n
s
ar
e
ca
r
r
ied
f
o
r
its
m
ain
p
ar
am
eter
s
to
m
in
i
m
ize
th
e
co
g
g
in
g
to
r
q
u
e
an
d
im
p
r
o
v
e
th
e
m
o
to
r
p
er
f
o
r
m
an
ce
.
T
h
e
s
im
u
latio
n
r
esu
lts
co
n
f
ir
m
th
at
t
h
e
m
o
to
r
h
as
s
u
p
er
io
r
d
ec
o
u
p
lin
g
ch
ar
a
cter
is
tics
co
m
p
ar
ed
with
th
e
d
o
u
b
le
-
win
d
in
g
m
o
to
r
.
T
h
is
p
ap
er
aim
ed
t
o
an
aly
ze
an
d
ca
lcu
late
t
h
e
ca
n
ce
latio
n
o
f
r
a
d
ial
f
o
r
ce
s
r
esu
lts
f
r
o
m
u
n
b
alan
ce
d
air
g
ap
f
lu
x
d
e
n
s
ity
d
is
tr
ib
u
ti
o
n
,
t
h
e
ec
ce
n
tr
icity
r
o
t
o
r
c
o
n
d
itio
n
,
a
n
d
h
ig
h
-
s
p
ee
d
o
f
th
e
r
o
tatio
n
.
T
h
er
ef
o
r
e,
th
e
r
esu
ltan
t
r
ad
ial
f
o
r
ce
o
f
th
e
r
o
to
r
m
u
s
t
b
e
a
p
p
r
o
x
im
ately
eq
u
al
to
ze
r
o
at
t
h
e
ce
n
ter
(
n
o
r
m
al)
p
o
s
itio
n
f
o
r
th
e
r
o
tatio
n
al
m
o
v
em
e
n
t
s
p
ee
d
wh
er
e
u
s
in
g
in
teg
r
ated
win
d
in
g
co
n
f
ig
u
r
atio
n
b
y
g
en
e
r
a
tin
g
d
ir
ec
t
cu
r
r
en
t
(
DC
)
to
r
ad
ial
f
o
r
ce
s
ca
n
ce
lla
tio
n
.
T
h
is
in
teg
r
ated
win
d
i
n
g
co
n
f
ig
u
r
atio
n
is
u
s
ed
to
g
e
n
er
ate
th
e
to
r
q
u
e
an
d
s
u
s
p
en
s
io
n
f
o
r
ce
o
f
th
e
m
o
to
r
h
as
th
e
ad
v
an
tag
e
o
f
m
o
r
e
ef
f
icien
t
s
u
s
p
en
s
io
n
p
er
f
o
r
m
a
n
ce
an
d
r
ed
u
ce
th
e
cu
r
r
en
t,
is
less
ex
p
en
s
iv
e,
an
d
th
e
ca
n
ce
llatio
n
r
ad
ial
f
o
r
ce
d
is
tr
ib
u
tio
n
is
b
etter
th
a
n
s
u
s
p
en
s
io
n
f
ix
ed
co
ils
.
T
h
e
ar
ticle
is
o
r
g
an
ized
as
f
o
llo
ws:
s
ec
tio
n
2
in
tr
o
d
u
ce
s
th
e
r
ad
ial
f
o
r
ce
ca
lcu
latio
n
.
Sectio
n
3
p
r
esen
ts
a
tech
n
iq
u
e
o
f
th
e
ca
n
ce
llatio
n
r
ad
ial
f
o
r
ce
.
Sectio
n
4
illu
s
tr
ates
th
e
r
esu
lts
,
an
d
s
ec
t
io
n
5
s
u
m
m
ar
izes
th
e
co
n
clu
s
io
n
.
2.
CALCU
L
A
T
I
O
N
O
F
RAD
I
AL
F
O
RCE
I
n
th
e
elec
tr
ical
m
o
to
r
s
,
ap
p
ea
r
an
ce
o
f
th
e
r
a
d
ial
f
o
r
ce
is
ass
o
ciate
d
with
th
e
g
en
er
atio
n
o
f
elec
tr
o
m
ag
n
etic
to
r
q
u
e.
I
n
b
ea
r
in
g
less
m
o
to
r
a
p
p
licatio
n
s
,
c
an
ce
latio
n
o
f
th
e
r
ad
ial
f
o
r
ce
r
eq
u
ir
es
ca
lcu
latin
g
th
e
r
ad
ial
f
o
r
ce
s
th
at
af
f
ec
t
th
e
m
o
to
r
r
o
to
r
[
15
]
.
T
h
e
m
a
g
n
itu
d
e
an
d
d
ir
ec
ti
o
n
o
f
r
ad
i
al
f
o
r
ce
s
is
h
ig
h
ly
d
ep
en
d
e
n
t
o
n
th
e
p
o
s
itio
n
o
f
t
h
e
r
o
to
r
in
s
id
e
t
h
e
air
g
ap
,
t
h
e
r
ef
o
r
e
it
is
n
ec
ess
ar
y
to
e
v
alu
a
te
th
e
len
g
t
h
o
f
th
e
air
g
ap
at
ec
ce
n
t
r
icity
co
n
d
itio
n
.
2
.
1
.
Ana
ly
t
ica
l
ca
lcula
t
io
n o
f
ra
dia
l f
o
rc
e
Ma
x
well’
s
s
tr
ess
ten
s
o
r
p
r
in
ci
p
le
is
u
s
ed
to
ca
lcu
late
th
e
m
a
g
n
etic
f
o
r
ce
s
o
r
t
o
r
q
u
e
f
o
r
an
y
elec
tr
ical
m
ac
h
in
e.
T
h
e
id
ea
is
b
ased
o
n
Far
ad
ay
’
s
ass
er
tio
n
ac
co
r
d
i
n
g
to
wh
ic
h
s
tr
ess
h
ap
p
en
s
in
th
e
f
lu
x
li
n
es.
T
h
e
tan
g
en
tial
an
d
n
o
r
m
al
co
m
p
o
n
en
ts
o
f
th
e
f
lu
x
d
e
n
s
ity
ca
n
b
e
o
b
tain
ed
.
W
ith
th
e
Ma
x
well
s
tr
ess
m
eth
o
d
,
n
o
r
m
al
an
d
tan
g
en
tial
f
lu
x
d
e
n
s
ity
co
m
p
o
n
en
ts
m
u
s
t
b
e
k
n
o
wn
in
all
p
o
in
ts
alo
n
g
t
h
e
cl
o
s
ed
lin
e
in
th
e
ai
r
g
ap
,
an
d
th
e
ta
n
g
en
tial
an
d
n
o
r
m
al
f
o
r
ce
s
at
ea
ch
p
o
in
t
in
th
e
air
g
ap
r
eg
i
o
n
h
a
v
e
b
ee
n
ca
lcu
lated
u
s
in
g
(
1
)
an
d
(
2
)
.
T
h
e
co
m
p
o
n
en
ts
o
f
s
tr
ess
ar
e
b
ased
o
n
f
iel
d
co
m
p
o
n
en
ts
.
f
t
=
1
μ
0
(
B
t
)
(
B
n
)
(
1
)
f
n
=
1
2
μ
0
[
(
B
n
)
2
−
(
B
t
)
2
]
(2
)
w
h
er
e
an
d
ar
e
n
o
r
m
al
an
d
tan
g
en
tial
f
o
r
ce
d
en
s
ity
(
N/
m
)
r
esp
ec
tiv
ely
,
an
d
ar
e
n
o
r
m
al
an
d
tan
g
en
tial
f
lu
x
d
en
s
ities
(
tesl
a)
.
T
h
e
to
tal
n
o
r
m
al
an
d
ta
n
g
e
n
tial
f
o
r
ce
s
v
alu
e
ca
n
b
e
ca
lcu
lated
f
r
o
m
(
3
)
,
(
4
)
alo
n
g
t
h
e
air
g
a
p
lin
e
.
Sp
ec
if
i
ca
lly
,
th
e
o
v
er
all
n
o
r
m
al
a
n
d
tan
g
en
tial
f
o
r
ce
/len
g
th
at
a
s
in
g
le
r
o
to
r
p
o
s
itio
n
ca
n
b
e
ex
p
r
ess
ed
as:
F
t
=
P
2
∫
f
t
(
φ
r
2π
0
)
l
R
c
d
φ
r
(
3
)
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2502
-
4
7
5
2
R
a
d
ia
l fo
r
ce
ca
n
ce
lla
tio
n
o
f b
ea
r
in
g
less
b
r
u
s
h
less
d
ir
ec
t c
u
r
r
en
t m
o
to
r
u
s
in
g
in
teg
r
a
ted
… (
A
li A
.
Yo
u
s
if
)
81
F
n
=
P
2
∫
f
n
(
φ
r
)
l
R
c
d
φ
r
2π
0
(
4
)
w
h
er
e
P
is
a
n
u
m
b
er
o
f
p
o
les,
is
th
e
a
x
ial
len
g
th
o
f
th
e
m
a
ch
in
e
(
m
m
)
,
a
n
d
is
th
e
r
a
d
iu
s
o
f
t
h
e
co
n
to
u
r
(
m
m
)
.
T
h
e
f
o
llo
win
g
r
elatio
n
s
h
ip
ca
n
ca
lcu
late
th
e
to
tal
to
r
q
u
e
p
r
o
d
u
ctio
n
:
T
=
1
μ
0
∫
[
(
r
×
B
)
(
B
.
n
)
−
1
2
s
B
2
(
r
×
n
)
]
ds
(
5
)
w
h
er
e
B
is
th
e
f
lu
x
d
en
s
ity
v
ec
to
r
(
tesl
a)
,
n
is
th
e
n
o
r
m
al
u
n
it
v
ec
to
r
in
th
e
elem
e
n
ts
,
r
is
th
e
r
o
to
r
r
ad
iu
s
(
m
m
)
,
is
th
e
s
u
r
f
ac
e
o
f
th
e
ele
m
en
t,
an
d
°
is
th
e
m
ag
n
etic
p
er
m
ea
b
ilit
y
(
H/m
)
[
16
]
-
[
18
]
.
2
.
2
.
Va
ri
a
t
io
n o
f
a
ir
g
a
p leng
t
h und
er
ro
t
o
r
ec
ce
ntr
icit
y
co
nd
it
io
n
Fig
u
r
e
1
s
h
o
ws
th
e
r
esu
ltan
t
r
ad
ial
f
o
r
ce
u
n
d
er
r
o
to
r
ec
c
en
tr
icity
co
n
d
itio
n
s
.
T
h
e
m
ag
n
itu
d
e
a
n
d
d
ir
ec
tio
n
o
f
th
e
r
esu
ltan
t
r
ad
i
al
f
o
r
ce
s
r
esu
lt
in
th
e
d
ir
ec
tio
n
o
f
θ.
Ass
u
m
e
th
e
n
o
r
m
al
d
i
s
tan
ce
b
etwe
en
th
e
r
o
to
r
an
d
s
tato
r
b
o
r
e
is
0
.
I
f
t
h
e
r
o
to
r
m
o
v
es
f
r
o
m
t
h
e
s
tato
r
ce
n
ter
ar
e
x
a
n
d
y
,
th
e
air
g
ap
len
g
th
at
ec
ce
n
tr
icity
is
(
6
)
:
g
=
g
0
−
x
c
os
(
φ
s
)
−
y
s
in
(
φ
s
)
(
6
)
T
h
e
ca
lcu
latio
n
o
f
th
e
air
g
ap
p
er
m
ea
n
ce
P
0
at
an
an
g
u
lar
p
o
s
itio
n
is
(
7
)
:
0
(
φ
s
)
=
μ
0
Rl
g
0
(
1
+
x
g
0
c
os
φ
s
+
y
g
0
s
in
φ
s
)
(
7
)
w
h
er
e
R
is
th
e
r
o
to
r
r
ad
iu
s
[
19
]
,
[
20
]
.
Fig
u
r
e
1
.
R
o
to
r
ec
ce
n
tr
icity
w
ith
air
g
ap
len
g
th
v
a
r
iatio
n
3.
RADIA
L
F
O
RCE CA
L
CU
L
AT
I
O
N
M
E
T
H
O
D
T
h
e
r
o
tatio
n
al
r
a
d
ial
f
o
r
ce
ca
n
b
e
c
o
n
tr
o
lle
d
b
y
g
en
er
atin
g
a
n
o
p
p
o
s
ite
f
o
r
ce
o
r
“c
a
n
ce
llatio
n
f
o
r
ce
”.
T
h
is
ca
n
ce
llatio
n
f
o
r
ce
ca
n
b
e
co
n
tr
o
lled
b
y
c
o
n
tr
o
llin
g
a
D
C
ex
citatio
n
cu
r
r
en
t
in
ea
ch
p
o
le
in
d
ep
e
n
d
en
tly
.
F
u
r
t
h
e
r
m
o
r
e
,
b
e
c
a
u
s
e
r
a
d
i
al
f
o
r
c
e
is
a
f
u
n
c
t
i
o
n
o
f
r
o
t
o
r
p
o
s
i
t
io
n
,
r
a
d
i
a
l
f
o
r
c
e
m
a
n
a
g
e
m
e
n
t
n
e
c
e
s
s
i
t
at
es
v
a
r
y
i
n
g
t
h
e
e
x
c
i
ta
t
i
o
n
c
u
r
r
e
n
t
a
n
d
p
o
l
ar
i
t
y
w
it
h
r
o
t
o
r
p
o
s
i
t
i
o
n
[
21
]
.
T
h
i
s
p
a
p
e
r
p
r
o
p
o
s
es
a
DC
e
x
ci
ta
t
i
o
n
s
c
h
e
m
e
f
o
r
t
h
e
r
a
d
i
a
l
f
o
r
c
e
c
o
n
t
r
o
l
o
f
t
h
e
1
2
/
8
p
o
l
e
b
e
a
r
i
n
g
l
es
s
B
L
DC
f
o
r
b
l
o
o
d
p
u
m
p
a
p
p
l
i
c
a
t
i
o
n
.
B
y
p
r
o
p
er
d
i
s
t
r
i
b
u
t
i
o
n
o
f
t
h
e
p
o
l
e
'
s
c
u
r
r
e
n
t
i
n
t
h
e
e
x
c
i
ti
n
g
w
in
d
i
n
g
s
,
t
h
e
r
e
q
u
i
r
e
d
DC
c
a
n
b
e
p
r
o
d
u
c
e
d
f
o
r
r
a
d
i
a
l
f
o
r
c
e
c
a
n
c
e
l
a
t
i
o
n
.
I
n
in
teg
r
atin
g
win
d
in
g
c
o
n
f
i
g
u
r
atio
n
,
o
n
e
co
il
is
em
p
lo
y
ed
in
ea
c
h
s
lo
t
to
g
en
er
ate
to
r
q
u
e
an
d
s
u
s
p
en
s
io
n
f
o
r
ce
.
Fo
r
th
e
m
o
to
r
to
r
q
u
e
g
en
er
atio
n
,
th
e
m
ac
h
in
e
h
as
b
ee
n
s
u
p
p
lied
b
y
a
3
-
p
h
ase
cu
r
r
en
t
s
o
u
r
ce
.
Fig
u
r
e
2
s
h
o
ws th
e
th
r
ee
-
p
h
ase
win
d
in
g
c
o
n
n
ec
tio
n
s
eq
u
en
ce
.
T
h
e
s
u
s
p
en
s
io
n
c
u
r
r
en
t is su
p
p
lied
b
y
a
DC
ex
citatio
n
s
o
u
r
ce
.
I
n
s
u
ch
co
n
f
i
g
u
r
atio
n
,
t
h
e
ac
cu
r
ac
y
is
h
ig
h
er
,
m
o
r
e
e
f
f
icien
t
s
u
s
p
e
n
s
io
n
p
e
r
f
o
r
m
an
ce
,
an
d
th
e
ca
n
ce
llatio
n
r
ad
ial
f
o
r
ce
d
is
tr
ib
u
tio
n
is
b
etter
th
a
n
a
s
ep
ar
ated
win
d
in
g
co
n
f
i
g
u
r
ati
o
n
[
22
]
-
[
24
]
.
T
wo
m
eth
o
d
s
h
av
e
b
ee
n
u
s
e
d
to
ca
n
ce
l
th
e
r
ad
ial
f
o
r
ce
s
.
T
h
e
f
ir
s
t
m
eth
o
d
is
th
e
u
s
e
o
f
f
o
u
r
-
s
u
s
p
en
s
io
n
p
o
les,
th
e
s
ec
o
n
d
is
th
e
u
s
e
o
f
all
-
s
u
s
p
en
s
io
n
p
o
les
to
ca
n
ce
l
th
e
r
a
d
ial
f
o
r
ce
s
an
d
t
o
g
et
a
b
alan
ce
d
s
u
s
p
en
s
io
n
r
o
t
o
r
in
t
h
e
air
g
ap
.
Fig
u
r
e
3
(
a)
s
h
o
ws
th
e
f
ir
s
t
m
eth
o
d
,
o
f
1
2
/8
p
o
les
b
ea
r
in
g
less
B
L
DC
m
o
to
r
f
o
r
r
ad
ial
f
o
r
ce
ca
n
ce
ll
atio
n
u
s
in
g
f
o
u
r
-
p
o
les
to
p
r
o
d
u
ce
th
e
s
u
s
p
e
n
s
io
n
f
o
r
ce
s
.
O
n
ly
th
e
co
ils
o
f
th
e
p
o
le
(
1
,
4
,
7
,
1
0
)
a
r
e
ac
tiv
e
f
o
r
DC
ex
citin
g
cu
r
r
en
t,
a
n
d
it
is
ass
u
m
ed
th
at
th
e
cu
r
r
e
n
ts
in
all
co
ils
in
th
e
(
1
2
)
s
tato
r
p
o
les
ca
n
b
e
c
o
n
tr
o
lled
in
d
ep
en
d
en
tly
.
L
et
t
h
e
co
ils
o
f
p
h
ase
C
b
e
u
s
ed
f
o
r
th
e
D
C
ex
citin
g
cu
r
r
en
t.
W
h
er
e
th
e
p
o
les
cu
r
r
en
ts
ar
e
1
,
2
,
3
,
an
d
4
r
esp
ec
tiv
ely
,
an
d
is
th
e
r
o
to
r
an
g
le.
T
h
e
s
tep
r
o
t
atio
n
an
g
le
o
f
th
is
b
ea
r
in
g
less
B
L
D
C
is
(
2
2
.
5
)
m
e
ch
a
n
ical
r
o
to
r
d
eg
r
ee
s
to
o
b
tain
r
esu
lts
with
c
h
an
g
e
D.
C
p
o
lar
it
y
ev
er
y
s
tep
.
T
h
e
r
ad
ial
f
o
r
ce
in
th
e
B
L
DC
m
o
to
r
is
an
aly
ze
d
b
y
tak
in
g
th
e
f
o
r
ce
g
en
e
r
ated
with
o
n
e
p
o
le.
T
h
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
5
2
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
25
,
No
.
1
,
J
an
u
ar
y
20
22
:
79
-
88
82
o
v
er
lap
a
r
ea
,
as
well
as
th
e
n
o
n
-
o
v
er
lap
a
r
ea
o
f
th
e
s
tato
r
t
o
o
th
th
e
f
lu
x
p
ass
es
th
r
o
u
g
h
t
h
em
b
ec
au
s
e
o
f
th
e
f
r
in
g
in
g
ef
f
ec
t
as
s
h
o
wn
in
F
ig
u
r
e
3
(
b
)
.
T
h
e
r
a
d
ial
f
o
r
c
e
i
n
th
e
m
o
t
o
r
ca
n
b
e
a
n
aly
ze
d
b
y
co
n
s
id
er
in
g
th
e
f
o
r
ce
g
e
n
er
ated
with
a
f
o
u
r
-
p
o
les.
T
h
e
in
d
u
ctan
ce
ca
n
b
e
ex
p
r
ess
ed
as
(
8
)
,
L
C
=
μ
0
N
2
l
R
θ
o
2
(
l
g
+
l
m
)
+
N
2
K
f
θ
no
(
8
)
w
h
er
e
0
is
th
e
p
er
m
ea
b
ilit
y
o
f
air
,
N
is
t
h
e
n
u
m
b
e
r
o
f
c
o
il
tu
r
n
,
is
a
co
n
s
tan
t
f
o
r
th
e
f
r
i
n
g
i
n
g
in
d
u
ctan
ce
,
is
th
e
air
g
a
p
len
g
t
h
,
is
th
e
p
er
m
an
en
t
m
ag
n
et
th
ick
n
ess
,
an
d
ar
e
th
e
o
v
e
r
lap
p
in
g
an
d
th
e
n
o
n
-
o
v
er
lap
p
i
n
g
an
g
le,
r
esp
ec
tiv
el
y
.
T
h
e
r
ad
ial
f
o
r
ce
1
an
d
to
r
q
u
e
1
in
o
n
e
p
o
le
ca
n
b
e
e
x
p
r
ess
ed
as
(
9
)
.
1
=
1
2
2
1
(
9
)
T
C1
=
1
2
i
2
C1
dL
c
d
θ
o
(
1
0
)
Fig
u
r
e
2
.
Geo
m
etr
y
a
n
d
w
in
d
i
n
g
co
n
f
ig
u
r
atio
n
m
o
to
r
to
r
q
u
e
o
f
th
e
B
L
DC
m
o
to
r
(
a)
(
b
)
Fig
u
r
e
3
.
Fo
u
r
-
s
u
s
p
en
s
io
n
p
o
l
es o
f
b
ea
r
in
g
less
B
L
D
C
m
o
to
r
(
a)
Ov
er
v
iew
an
d
(
b
)
p
o
le
(
C
3
)
Sin
ce
(
+
)
is
f
ix
ed
,
b
y
n
eg
lectin
g
t
h
e
f
r
in
g
in
g
f
l
u
x
1
ca
n
b
e
s
im
p
li
f
ied
as
(
1
1
)
,
F
C1
≈
1
2
i
2
C1
L
C
(
l
g
+
l
m
)
=
μ
0
N
2
l
R
θ
o
2
(
l
g
+
l
m
)
2
.
i
2
C1
≈
K
F
i
2
C1
(
1
1
)
w
h
er
e
K
F
=
μ
0
.
N
2
lR
θ
o
2
(
l
g
+
l
m
)
2
[
21
]
.
I
n
(
1
1
)
s
h
o
ws
th
at
th
e
r
ad
ial
f
o
r
ce
'
s
ca
p
ac
ity
i
s
ap
p
r
o
x
im
ately
p
r
o
p
o
r
tio
n
al
t
o
th
e
s
q
u
ar
e
o
f
th
e
DC
ex
citatio
n
a
n
d
i
n
v
er
s
ely
p
r
o
p
o
r
tio
n
al
to
t
h
e
s
q
u
ar
ed
air
g
a
p
len
g
th
.
I
t'
s
also
in
f
lu
en
ce
d
b
y
r
o
to
r
an
g
le.
T
h
e
to
tal
r
ad
ial
f
o
r
ce
s
ar
e
eq
u
al
t
o
th
e
v
ec
to
r
s
u
m
m
atio
n
o
f
th
e
f
o
r
ce
s
p
r
o
d
u
ce
d
b
y
all
th
e
ex
citin
g
p
o
les.
No
te
th
at
f
o
r
ea
ch
p
o
le
th
e
d
ir
ec
tio
n
o
f
th
e
r
ad
ial
f
o
r
ce
d
ep
e
n
d
s
o
n
th
e
p
o
lar
ity
o
f
th
e
D.
C
ex
citatio
n
[
19
]
,
[
21
]
.
T
h
e
r
esu
l
tan
t r
ad
ial
f
o
r
ce
in
th
e
x
-
an
d
y
-
ax
is
is
:
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2502
-
4
7
5
2
R
a
d
ia
l fo
r
ce
ca
n
ce
lla
tio
n
o
f b
ea
r
in
g
less
b
r
u
s
h
less
d
ir
ec
t c
u
r
r
en
t m
o
to
r
u
s
in
g
in
teg
r
a
ted
… (
A
li A
.
Yo
u
s
if
)
83
F
X
≈
F
C1
±
F
C3
=
K
F
(
i
2
C1
±
i
2
C3
)
(
1
2
)
F
y
≈
F
C2
±
F
C4
=
K
F
(
i
2
C2
±
i
2
C4
)
(
1
3
)
T
h
e
s
ec
o
n
d
m
eth
o
d
,
in
teg
r
ati
n
g
win
d
in
g
co
n
f
ig
u
r
atio
n
s
h
o
wn
in
Fig
u
r
e
4
,
th
e
all
-
s
u
s
p
en
s
io
n
p
o
les
ar
e
u
s
in
g
to
ca
n
ce
llatio
n
b
y
th
e
s
am
e
p
r
in
cip
le
o
f
f
o
u
r
-
s
u
s
p
en
s
io
n
p
o
l
es
eq
u
atio
n
s
b
u
t
all
p
o
les
ar
e
ac
tiv
e
th
at
r
eq
u
ir
es
m
in
im
u
m
co
n
s
u
m
p
tio
n
ca
n
ce
l
l
atio
n
DC
an
d
m
o
r
e
ef
f
icien
t s
u
s
p
en
s
io
n
p
er
f
o
r
m
a
n
ce
an
d
ac
cu
r
ac
y
.
Fig
u
r
e
4
.
All
-
s
u
s
p
en
s
io
n
p
o
les m
eth
o
d
4.
RE
SU
L
T
S AN
D
D
IS
CU
SS
I
O
N
T
o
ef
f
ec
tiv
ely
v
er
if
y
t
h
e
in
te
g
r
ated
win
d
in
g
co
n
f
ig
u
r
atio
n
,
a
B
L
DC
b
lo
o
d
p
u
m
p
b
ea
r
in
g
less
m
o
to
r
is
s
im
u
lated
an
d
an
aly
ze
d
b
y
u
s
in
g
(
ANSYS/MAX
W
E
L
L
)
s
o
f
twar
e.
T
h
e
m
ai
n
p
ar
a
m
eter
s
o
f
th
e
b
ea
r
in
g
less
m
o
to
r
ar
e
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ted
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
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5
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I
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Vo
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25
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1
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r
eq
u
ir
ed
to
ac
h
iev
e
th
e
ca
n
ce
llatio
n
o
f
r
ad
ial
f
o
r
ce
.
Du
r
in
g
o
n
e
r
o
tatio
n
o
f
th
e
r
o
to
r
,
it
ca
n
b
e
s
ee
n
th
at
th
e
r
ad
ial
f
o
r
ce
is
v
ar
iab
le,
th
e
m
ax
im
u
m
v
alu
e
o
f
r
ad
i
al
f
o
r
ce
o
cc
u
r
s
wh
e
n
th
e
r
o
to
r
p
o
les
f
ac
e
th
e
s
tato
r
te
eth
.
T
h
er
e
f
o
r
e,
th
e
ca
n
ce
llatio
n
cu
r
r
e
n
t m
u
s
t b
e
c
h
an
g
ed
ac
co
r
d
i
n
g
ly
.
Fro
m
Fig
u
r
e
7
,
it tu
r
n
s
o
u
t th
a
t th
e
r
ad
ial
f
o
r
ce
s
h
av
e
lo
w
v
a
lu
es (
ab
o
u
t
ze
r
o
)
wh
en
th
e
r
o
t
o
r
is
at
th
e
ce
n
ter
.
Fro
m
Fig
u
r
e
8
,
it
ca
n
b
e
f
am
iliar
ized
th
at
as
th
e
r
o
t
o
r
is
m
o
v
ed
awa
y
f
r
o
m
th
e
ce
n
ter
,
th
e
r
ad
ial
f
o
r
ce
will
h
av
e
h
ig
h
v
alu
es.
Of
c
o
u
r
s
e,
th
is
ap
p
ea
r
s
o
n
th
e
v
alu
e
o
f
th
e
DC
ex
citatio
n
r
eq
u
ir
ed
to
ac
h
iev
e
th
e
ca
n
ce
lla
tio
n
o
f
r
ad
ial
f
o
r
ce
.
Du
r
in
g
o
n
e
r
o
tatio
n
o
f
th
e
r
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to
r
,
it
ca
n
b
e
s
ee
n
th
at
th
e
r
ad
ial
f
o
r
ce
is
v
ar
iab
le,
th
e
m
ax
im
u
m
v
alu
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o
f
r
ad
i
al
f
o
r
ce
o
cc
u
r
s
wh
e
n
th
e
r
o
to
r
p
o
les
f
ac
e
th
e
s
tato
r
te
eth
.
T
h
er
e
f
o
r
e,
th
e
ca
n
ce
llatio
n
cu
r
r
e
n
t m
u
s
t b
e
c
h
an
g
ed
ac
co
r
d
i
n
g
ly
.
Fig
u
r
e
9
.
R
ad
ial
f
o
r
ce
v
alu
es
b
y
u
s
in
g
all
-
s
u
s
p
en
s
io
n
p
o
les,
th
e
r
o
to
r
p
o
s
itio
n
is
(
0
.
1
,
0
)
m
m
T
ab
le
4
.
DC
ex
citatio
n
v
al
u
es o
f
all
-
s
u
s
p
en
s
io
n
p
o
les,
r
o
to
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p
o
s
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(
0
.
1
,
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m
m
R
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t
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t
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h
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CO
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tech
n
iq
u
es,
T
ab
le
5
s
h
o
ws
th
e
DC
ca
n
ce
llatio
n
cu
r
r
en
t
f
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r
d
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en
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s
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r
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th
e
r
eq
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r
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l
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Evaluation Warning : The document was created with Spire.PDF for Python.
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-
4
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R
a
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ia
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r
ce
ca
n
ce
lla
tio
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o
f b
ea
r
in
g
less
b
r
u
s
h
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d
ir
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t c
u
r
r
en
t m
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to
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u
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r
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A
li A
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s
if
)
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s
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m
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s
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th
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p
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tag
e
r
ed
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ax
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m
u
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r
r
en
t
is
b
etwe
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3
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d
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8
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s
ai
d
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o
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th
e
all
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s
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eth
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is
ex
p
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n
s
iv
e
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d
co
m
p
lex
,
i
t
r
eq
u
ir
es
a
p
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s
u
p
p
ly
with
a
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c
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r
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le
5
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p
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r
r
en
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r
eq
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f
o
r
ca
n
c
ellatio
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R
o
t
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r
p
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si
t
i
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(
mm
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R
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(
d
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(
A
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CO
NCLU
SI
O
N
I
n
th
is
p
ap
er
,
th
e
r
ad
ial
f
o
r
ce
o
f
th
e
(
1
2
/8
)
b
ea
r
in
g
less
B
L
DC
m
o
to
r
h
as
b
ee
n
an
aly
ze
d
.
I
n
teg
r
ated
win
d
in
g
co
n
f
ig
u
r
atio
n
is
co
n
s
id
er
ed
wh
er
e
th
e
s
am
e
co
il
is
u
s
ed
to
g
en
er
ate
m
o
to
r
in
g
to
r
q
u
e
an
d
t
o
ca
n
ce
l
th
e
r
ad
ial
f
o
r
ce
.
C
an
ce
llatio
n
o
f
r
ad
ial
f
o
r
ce
h
as
b
ee
n
ac
h
iev
ed
b
y
u
s
in
g
f
o
u
r
s
u
s
p
e
n
s
io
n
p
o
les
an
d
all
-
s
u
s
p
en
s
io
n
p
o
les.
At
co
n
s
tan
t
m
o
to
r
i
n
g
m
o
to
r
cu
r
r
en
t,
th
e
s
im
u
latio
n
r
esu
lts
s
h
o
w
th
at
th
e
r
ad
ial
f
o
r
ce
is
v
ar
ied
with
th
e
r
o
to
r
p
o
s
itio
n
an
d
r
o
to
r
r
o
tatin
g
a
n
g
le.
T
h
u
s
,
th
er
e
was
a
n
ee
d
to
ch
a
n
g
e
th
e
s
u
s
p
en
s
io
n
cu
r
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en
ts
to
ac
h
iev
e
th
e
ca
n
ce
l
latio
n
.
T
h
e
in
teg
r
ate
d
win
d
in
g
co
n
f
ig
u
r
atio
n
was
f
o
u
n
d
s
u
itab
le
to
r
ea
lize
th
e
r
ad
ial
f
o
r
ce
ca
n
ce
llatio
n
.
Alt
h
o
u
g
h
th
e
all
-
s
u
s
p
en
s
io
n
p
o
l
es
m
eth
o
d
r
eq
u
i
r
es
m
o
r
e
co
m
p
lex
c
o
n
n
ec
tio
n
s
,
s
u
p
p
lies
,
an
d
co
n
tr
o
l,
th
e
r
es
u
lts
o
f
th
is
m
eth
o
d
s
h
o
w
th
e
ca
n
ce
llatio
n
cu
r
r
en
t
is
s
ig
n
if
i
ca
n
tly
less
th
an
th
e
f
o
u
r
-
p
o
le
m
eth
o
d
.
RE
F
E
R
E
NC
E
S
[
1
]
N
.
M
a
m
a
t
,
e
t
a
l
.
,
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p
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,
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p
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s
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v
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i
2
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p
p
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4
1
.
[
2
]
M
.
J
a
f
a
r
b
o
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a
n
d
a
n
d
A
.
S
h
i
r
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d
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n
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t
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ss s
u
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f
a
c
e
-
m
o
u
n
t
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d
P
M
s
y
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h
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,
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ET
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t
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p
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t
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v
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1
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p
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e
p
a
.
2
0
1
8
.
5
6
0
7
.
[
3]
M
.
Q
.
A
b
b
a
s
a
n
d
Y
.
A
.
Y
a
ss
i
n
,
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o
d
i
f
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c
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t
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d
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