I
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Adv
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Ass
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Mo
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1.
I
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O
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L
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tech
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as
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L
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ar
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an
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en
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elem
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t
o
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u
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g
s
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d
e
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to
p
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f
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m
d
aily
ta
s
k
s
an
d
ac
tiv
ities
.
E
d
u
ca
tio
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a
l
f
ac
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s
u
ch
as
lectu
r
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o
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m
s
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lectu
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lab
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eq
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m
en
t
as
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g
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m
an
ag
em
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t
[
1
]
,
[
2
]
.
Hen
ce
,
th
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e
is
a
cr
itical
n
ee
d
to
im
p
r
o
v
e
lig
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s
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s
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s
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ed
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f
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esig
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lay
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u
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ig
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th
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ch
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th
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s
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s
tem
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tify
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f
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tu
r
e
tr
en
d
s
in
ed
u
ca
tio
n
al
f
ac
ilit
ies
[
3
]
–
[
5
]
.
I
n
Ma
lay
s
i
a,
th
e
s
p
ec
if
icatio
n
s
f
o
r
lig
h
tin
g
s
y
s
tem
s
ar
e
s
tip
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lated
in
th
e
Ma
lay
s
ian
s
tan
d
ar
d
s
(
MS)
1
5
25
-
en
er
g
y
ef
f
i
cien
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an
d
u
s
e
o
f
r
en
ewa
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g
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n
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s
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t
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v
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n
t
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o
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p
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r
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o
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v
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r
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o
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task
s
an
d
en
h
an
ce
th
e
ap
p
e
ar
an
ce
o
f
o
b
jects
[
6
]
,
[
7
]
.
I
t
is
cr
u
cial
to
im
p
r
o
v
e
th
e
lig
h
tin
g
s
y
s
tem
s
in
ed
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ca
t
io
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al
f
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in
o
r
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er
to
e
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h
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ce
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teac
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an
d
lear
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v
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n
m
en
t
a
n
d
p
r
o
m
o
te
v
is
u
al
ac
u
ity
[
8
]
,
[
9
]
.
A
well
-
d
esig
n
ed
lig
h
tin
g
s
y
s
te
m
m
ak
es th
e
atm
o
s
p
h
e
r
e
in
ed
u
ca
tio
n
al
f
ac
ilit
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m
o
r
e
ap
p
ea
lin
g
a
n
d
e
n
jo
y
ab
le
,
r
ein
f
o
r
ce
s
p
er
ce
p
ti
o
n
s
o
f
s
p
ac
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u
s
n
ess
,
s
tim
u
lates
teac
h
in
g
an
d
lear
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in
g
,
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d
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o
u
g
h
th
em
in
o
n
e
d
ir
ec
tio
n
[
1
1
]
.
An
elec
tr
ical
cu
r
r
en
t
p
as
s
th
r
o
u
g
h
a
m
icr
o
ch
ip
,
wh
ich
illu
m
in
at
es
th
e
L
E
Ds
an
d
p
r
o
d
u
ce
s
v
is
ib
le
lig
h
t.
T
h
e
u
s
e
o
f
L
E
Ds
ca
n
r
ed
u
ce
en
e
r
g
y
co
n
s
u
m
p
tio
n
b
y
3
0
-
5
0
%
f
o
r
lig
h
tin
g
an
d
1
0
-
2
0
%
f
o
r
c
o
o
lin
g
[
1
2
]
.
L
E
D
lu
m
in
air
es
ca
n
b
e
co
n
s
id
er
ed
r
ep
lace
m
en
ts
f
o
r
co
n
v
e
n
tio
n
al
lig
h
tin
g
s
y
s
tem
s
if
th
e
lu
m
in
o
u
s
ef
f
icien
cy
,
lig
h
tin
g
d
is
tr
ib
u
tio
n
o
n
th
e
illu
m
in
ated
a
r
ea
,
a
n
d
co
lo
r
q
u
al
ity
ar
e
s
u
p
er
io
r
to
th
o
s
e
o
f
co
n
v
en
tio
n
al
lig
h
tin
g
s
y
s
tem
s
[
1
3
]
.
L
u
m
in
o
u
s
f
lu
x
is
th
e
en
er
g
y
o
f
th
e
lig
h
t
e
m
itted
p
er
s
ec
o
n
d
in
all
d
ir
ec
tio
n
s
[
1
4
]
.
T
h
e
u
n
it
o
f
lu
m
in
o
u
s
f
lu
x
is
lu
m
en
(
lm
)
.
On
e
lu
m
en
is
d
ef
in
ed
as
th
e
lu
m
in
o
u
s
f
lu
x
o
f
lig
h
t
p
r
o
d
u
ce
d
b
y
a
lig
h
t
s
o
u
r
ce
th
at
em
its
1
ca
n
d
ela
(
cd
)
o
f
lu
m
in
o
u
s
in
ten
s
ity
o
v
er
a
s
o
lid
an
g
le
o
f
1
s
ter
ad
ia
n
(
s
r
)
[
1
5
]
.
T
o
im
p
r
o
v
e
v
is
u
al
co
m
f
o
r
t
in
ed
u
ca
tio
n
al
f
ac
ilit
ies,
it
is
ess
en
tial
to
d
eter
m
in
e
th
eir
illu
m
i
n
an
ce
le
v
els
an
d
en
s
u
r
e
th
at
th
e
illu
m
in
an
ce
lev
els
a
r
e
with
in
th
o
s
e
p
r
escr
ib
e
d
b
y
s
tan
d
ar
d
s
.
I
llu
m
in
a
n
ce
is
a
m
ea
s
u
r
e
o
f
t
h
e
am
o
u
n
t
o
f
lig
h
t
f
allin
g
o
n
to
an
d
s
p
r
ea
d
in
g
o
v
er
a
g
i
v
en
s
u
r
f
ac
e
ar
ea
[
1
6
]
.
T
h
e
illu
m
in
a
n
ce
ca
n
b
e
d
eter
m
in
ed
u
s
in
g
(
1
)
[
1
7
]
,
[
1
8
]
.
=
×
×
×
(
1
)
W
h
er
e
is
th
e
illu
m
in
an
ce
(
lx
)
,
is
th
e
in
itial
lam
p
o
u
tp
u
t
(
lm
)
,
is
th
e
n
u
m
b
er
o
f
lam
p
s
p
er
lu
m
in
air
e,
is
th
e
u
tili
z
atio
n
f
ac
to
r
,
is
th
e
m
ain
ten
an
ce
f
ac
to
r
,
a
n
d
is
th
e
r
o
o
m
ar
ea
(
m
2
)
.
T
h
e
u
tili
z
atio
n
f
ac
to
r
is
d
ef
in
ed
as
th
e
lu
m
en
s
r
ec
ei
v
ed
o
n
th
e
w
o
r
k
in
g
p
la
n
e
d
iv
id
ed
b
y
th
e
lu
m
en
o
u
tp
u
t
o
f
th
e
lu
m
in
air
es,
a
n
d
ac
co
u
n
ts
f
o
r
th
e
lo
s
s
o
f
lig
h
t
d
u
e
to
ab
s
o
r
p
tio
n
o
n
th
e
r
o
o
m
s
u
r
f
ac
es.
T
h
e
m
ain
ten
an
ce
f
ac
to
r
in
d
icate
s
h
o
w
lig
h
tin
g
co
n
d
itio
n
s
ar
e
af
f
ec
ted
b
y
th
e
d
aily
u
s
e
o
f
lu
m
in
air
es,
an
d
is
d
ef
in
ed
as
th
e
p
r
o
d
u
ct
o
f
th
e
r
o
o
m
s
u
r
f
ac
e
m
ain
ten
a
n
ce
f
ac
t
o
r
(
d
i
r
t
o
n
th
e
r
o
o
m
s
u
r
f
ac
es
)
,
l
u
m
i
n
air
e
m
ain
ten
a
n
ce
f
ac
t
o
r
(
d
ir
t
o
n
th
e
lu
m
in
air
e
s
)
,
l
am
p
l
u
m
en
m
ain
ten
a
n
ce
f
ac
t
o
r
(
d
i
r
t
o
n
th
e
lam
p
s
)
,
an
d
l
u
m
in
air
e
s
u
r
v
iv
al
f
ac
to
r
(
r
ed
u
c
ed
lig
h
t
o
u
tp
u
t
d
u
e
ag
in
g
an
d
f
ailu
r
e
o
f
th
e
la
m
p
s
)
.
T
h
e
co
r
r
elate
d
co
l
o
r
tem
p
e
r
atu
r
e
is
a
m
ea
s
u
r
e
o
f
t
h
e
co
lo
r
ap
p
ea
r
an
ce
o
f
th
e
lig
h
t
em
itted
b
y
a
lig
h
t
s
o
u
r
ce
,
wh
er
e
th
e
c
o
lo
r
o
f
th
e
lig
h
t
s
o
u
r
ce
is
r
elate
d
t
o
th
e
co
l
o
r
o
f
lig
h
t o
f
a
r
e
f
er
en
ce
lig
h
t
s
o
u
r
ce
wh
en
h
ea
ted
to
a
p
ar
ticu
lar
tem
p
er
at
u
r
e,
m
ea
s
u
r
ed
in
d
eg
r
ee
s
Kelv
in
(
K)
[
1
9
]
.
I
n
s
im
p
le
ter
m
s
,
th
e
co
r
r
elate
d
c
o
lo
r
tem
p
er
atu
r
e
r
e
p
r
esen
ts
th
e
wa
r
m
n
ess
o
r
co
o
ln
ess
o
f
a
lig
h
t
s
o
u
r
ce
.
Mo
s
t
o
f
th
e
f
l
u
o
r
escen
t
lam
p
s
u
s
ed
i
n
ac
ad
em
ic
b
u
ild
in
g
s
h
a
v
e
a
c
o
r
r
elate
d
c
o
lo
r
tem
p
er
atu
r
e
o
f
3
,
0
0
0
,
4
,
0
0
0
,
a
n
d
5
,
0
0
0
K.
I
n
war
m
r
eg
io
n
s
,
a
c
o
o
ler
co
l
o
r
a
p
p
ea
r
an
ce
is
p
r
ef
er
r
ed
,
wh
ic
h
ca
n
b
e
ac
h
iev
ed
b
y
u
s
in
g
lam
p
s
with
a
co
r
r
elate
d
co
lo
r
tem
p
e
r
atu
r
e
o
f
ab
o
v
e
5
,
0
0
0
K.
I
n
co
n
tr
ast,
a
war
m
er
co
lo
r
ap
p
ea
r
a
n
ce
is
p
r
ef
er
r
e
d
in
co
ld
er
r
eg
io
n
s
,
a
n
d
th
is
ca
n
b
e
ac
h
i
ev
ed
b
y
u
s
in
g
lam
p
s
with
a
c
o
r
r
elate
d
co
lo
r
tem
p
e
r
atu
r
e
o
f
less
th
an
4
,
0
0
0
K
[
2
0
]
.
T
h
e
co
lo
r
r
en
d
er
in
g
in
d
e
x
is
a
m
ea
s
u
r
e
o
f
th
e
a
b
ilit
y
o
f
an
ar
tific
ial
wh
ite
lig
h
t
s
o
u
r
ce
(
e.
g
.
,
L
E
Ds
an
d
f
lu
o
r
escen
t
lam
p
s
)
to
ac
cu
r
at
ely
r
ep
r
o
d
u
ce
th
e
co
lo
r
s
o
f
o
b
jects
illu
m
in
ated
b
y
it
co
m
p
ar
ed
with
n
at
u
r
al
d
ay
lig
h
t,
an
d
it is
m
ea
s
u
r
ed
o
n
a
s
ca
le
o
f
0
-
1
0
0
.
A
h
ig
h
co
l
o
r
r
en
d
e
r
in
g
in
d
e
x
(
9
0
-
1
0
0
)
in
d
icate
s
th
at
th
e
lig
h
t
s
o
u
r
ce
h
as
ex
ce
llen
t
co
lo
r
r
en
d
er
in
g
c
h
ar
ac
ter
is
tics
an
d
th
at
th
e
o
b
jects
illu
m
in
ated
b
y
t
h
e
lig
h
t
s
o
u
r
ce
a
p
p
ea
r
n
atu
r
al.
I
n
co
n
tr
ast,
a
lo
w
co
l
o
r
r
e
n
d
er
in
g
in
d
ex
(
<8
0
)
in
d
ic
ates
th
at
th
e
lig
h
t
s
o
u
r
c
e
h
as
p
o
o
r
c
o
lo
r
r
en
d
e
r
in
g
ch
ar
ac
ter
is
tics
,
an
d
th
e
o
b
jec
ts
illu
m
in
ated
b
y
th
e
lig
h
t
s
o
u
r
ce
ap
p
ea
r
d
is
to
r
ted
i
n
ter
m
s
o
f
th
eir
co
lo
r
ap
p
ea
r
an
ce
[2
1]
.
Owin
g
to
th
e
im
p
o
r
tan
ce
o
f
im
p
r
o
v
i
n
g
lig
h
tin
g
s
y
s
tem
s
in
ed
u
ca
tio
n
al
f
ac
ilit
ies,
th
is
s
tu
d
y
aim
s
to
in
v
esti
g
ate
th
e
illu
m
in
an
ce
lev
els
in
f
o
u
r
lectu
r
e
r
o
o
m
s
an
d
s
ix
lab
o
r
ato
r
ie
s
in
th
e
Facu
lty
o
f
E
lectr
ical
T
ec
h
n
o
l
o
g
y
an
d
E
n
g
in
ee
r
in
g
,
Un
iv
e
r
s
iti
T
ek
n
ik
al
Ma
lay
s
ia
Me
lak
a,
Ma
lay
s
ia
,
b
y
s
im
u
latio
n
s
.
T
h
e
illu
m
in
an
ce
lev
els
d
eter
m
in
ed
f
r
o
m
s
im
u
latio
n
s
ar
e
th
en
co
m
p
ar
ed
with
th
e
r
eq
u
i
r
ed
illu
m
in
an
ce
lev
els
f
o
r
class
r
o
o
m
s
(
3
0
0
l
x
)
an
d
lab
o
r
ato
r
ies
(
5
0
0
lx
)
s
tip
u
lated
in
th
e
MS
1
5
2
5
s
tan
d
ar
d
in
o
r
d
er
t
o
d
ete
r
m
i
n
e
wh
eth
er
th
e
r
o
o
m
s
ar
e
o
v
e
r
lit,
u
n
d
er
lit,
o
r
ad
eq
u
ately
lit.
I
t
is
b
eliev
ed
th
at
th
e
f
in
d
in
g
s
o
f
th
is
s
tu
d
y
will
b
e
u
s
ef
u
l to
im
p
r
o
v
e
th
e
lig
h
tin
g
s
y
s
tem
s
in
ed
u
ca
tio
n
al
f
ac
ilit
ies.
2.
M
E
T
H
O
D
O
L
O
G
Y
First,
a
r
o
o
m
was
s
elec
ted
t
o
v
alid
ate
th
e
illu
m
in
an
ce
le
v
els
p
r
ed
icted
b
y
t
h
e
s
im
u
latio
n
m
o
d
e
l
d
ev
elo
p
e
d
in
DI
AL
u
x
ev
o
1
0
.
0
lig
h
tin
g
d
esig
n
s
o
f
twar
e
(
DI
AL
Gm
b
H,
Ger
m
a
n
y
)
.
T
h
e
illu
m
in
an
ce
m
ea
s
u
r
em
en
t
was
p
er
f
o
r
m
e
d
b
y
u
s
in
g
th
e
d
ig
ital
lig
h
t
m
eter
(
Mo
d
el
HS
1
0
1
0
)
T
h
e
illu
m
in
a
n
ce
m
ea
s
u
r
em
en
ts
wer
e
p
e
r
f
o
r
m
ed
b
y
p
lacin
g
th
e
d
ig
ital
lig
h
t
m
eter
o
n
th
e
wo
r
k
in
g
p
lan
e
o
f
th
e
r
o
o
m
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Ad
v
Ap
p
l Sci
I
SS
N:
2252
-
8
8
1
4
I
llu
min
a
n
ce
s
tu
d
y
o
f le
ctu
r
e
r
o
o
ms a
n
d
l
a
b
o
r
a
to
r
ies in
a
n
e
d
u
ca
tio
n
a
l
… (
Mu
h
a
mma
d
A
s
yra
f Za
in
a
l
)
195
T
h
e
s
p
ec
if
icatio
n
s
o
f
th
e
v
ali
d
atio
n
r
o
o
m
(
i.e
.
,
lam
p
ty
p
e,
wo
r
k
in
g
p
lan
e
,
n
u
m
b
e
r
o
f
l
u
m
in
air
es,
an
d
r
o
o
m
d
im
en
s
io
n
s
)
ar
e
s
u
m
m
ar
is
ed
i
n
T
ab
le
1
.
Fo
llo
win
g
th
is
,
f
o
u
r
lectu
r
e
r
o
o
m
s
an
d
s
ix
lab
o
r
at
o
r
ies
in
th
e
Facu
lty
o
f
E
lectr
ical
T
ec
h
n
o
lo
g
y
a
n
d
E
n
g
in
ee
r
in
g
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.
Fo
llo
win
g
th
is
,
f
o
u
r
lect
u
r
e
r
o
o
m
s
wer
e
s
im
u
lated
u
s
in
g
th
e
DI
AL
u
x
ev
o
1
0
.
0
s
o
f
twar
e
to
d
eter
m
in
e
th
eir
illu
m
in
an
ce
le
v
els,
an
d
th
e
av
er
a
g
e
illu
m
in
a
n
ce
lev
els
wer
e
co
m
p
ar
e
d
with
th
e
illu
m
in
an
ce
lev
els
r
eq
u
ir
ed
f
o
r
class
r
o
o
m
s
(
3
0
0
l
x
)
an
d
lab
o
r
at
o
r
ies (
5
0
0
lx
)
s
tip
u
lated
in
th
e
MS
1
5
2
5
s
tan
d
ar
d
.
T
h
e
p
er
ce
n
ta
g
e
d
if
f
er
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ce
s
wer
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ca
lcu
lated
f
o
r
th
e
lectu
r
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o
m
s
an
d
la
b
o
r
a
to
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in
th
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tu
d
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eter
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wh
eth
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n
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er
lit,
o
r
ad
eq
u
ately
lit.
B
ased
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r
ac
tical
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p
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e
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ce
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etwe
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m
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r
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m
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im
u
latio
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th
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r
eq
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m
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ce
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ld
b
e
with
in
2
0
%.
T
h
e
r
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lts
ar
e
p
r
esen
ted
in
T
ab
le
s
6
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d
7
.
As
s
h
o
wn
in
T
ab
le
6
,
th
e
av
er
ag
e
illu
m
in
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n
ce
lev
els
o
f
B
K
1
,
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K
3
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K
9
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d
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ig
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5
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if
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ce
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o
f
m
o
r
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%.
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ce
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n
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e
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ed
u
ce
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th
at
th
e
lectu
r
e
r
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o
m
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wer
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o
v
er
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s
h
o
wn
in
T
ab
le
7
,
th
r
ee
la
b
o
r
ato
r
ies
(
ME
1
,
ME
1
2
,
an
d
ME
1
8
)
d
id
n
o
t
m
ee
t
th
e
r
eq
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ir
ed
illu
m
in
a
n
ce
lev
el
o
f
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0
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lx
,
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d
th
ese
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o
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ato
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ies
wer
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n
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er
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icate
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y
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ativ
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e
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ce
s
.
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n
co
n
tr
ast,
th
e
ME
5
,
ME
7
,
an
d
ME
2
3
lab
o
r
ato
r
ies
m
et
th
e
r
eq
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ir
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llu
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ce
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ag
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en
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o
f
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icatin
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at
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ese
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ato
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ad
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u
ate
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lit.
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latio
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wer
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p
er
f
o
r
m
ed
t
o
im
p
r
o
v
e
th
e
illu
m
in
an
ce
lev
els
o
f
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K
1
,
B
K
3
,
B
K
9
,
an
d
B
K
1
0
lectu
r
e
r
o
o
m
s
an
d
ME
1
,
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E
1
2
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an
d
ME
1
8
lab
o
r
ato
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ies
in
o
r
d
e
r
to
m
ee
t
t
h
e
illu
m
in
an
ce
lev
el
r
eq
u
ir
em
en
ts
s
et
in
th
e
MS
1
5
2
5
s
tan
d
ar
d
.
T
h
is
was
d
o
n
e
b
y
v
ar
y
in
g
th
e
n
u
m
b
er
o
f
lu
m
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air
es,
ch
an
g
in
g
th
e
lig
h
tin
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ar
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e
n
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ch
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g
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n
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th
e
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p
ty
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e,
o
r
m
ak
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e
o
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atu
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s
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n
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Su
g
g
esti
o
n
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wer
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m
ad
e
t
o
im
p
r
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th
e
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m
in
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n
ce
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f
th
e
lectu
r
e
r
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o
m
s
a
n
d
lab
o
r
ato
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ies,
as
s
u
m
m
a
r
is
ed
in
T
ab
les
8
a
n
d
9
.
Fig
u
r
e
1
s
h
o
ws
th
e
s
im
u
latio
n
r
esu
lt
f
o
r
th
e
ME
1
8
lab
o
r
at
o
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y
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ef
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r
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im
p
r
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e
n
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er
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s
Fig
u
r
e
2
s
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e
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im
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ter
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r
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ad
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en
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lin
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t
o
let
n
atu
r
al
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n
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o
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ato
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n
d
ee
d
,
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e
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e
r
ag
e
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m
in
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c
e
lev
el
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cr
ea
s
ed
f
r
o
m
4
0
6
lx
(
T
ab
le
7
)
to
5
7
2
lx
(
T
ab
le
9
)
b
y
m
ak
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n
g
u
s
e
o
f
n
atu
r
al
s
u
n
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h
t.
T
ab
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5
.
Valid
atio
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f
th
e
s
im
u
latio
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m
o
d
el
d
ev
elo
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in
th
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AL
u
x
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1
0
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o
f
twar
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I
l
l
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t
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f
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m m
e
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s
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r
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n
t
s (l
x
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l
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mi
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l
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t
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d
f
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m s
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P
e
r
c
e
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t
a
g
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e
r
r
o
r
(
%)
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0
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5
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0
0
1
9
8
0
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0
1
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0
1
7
6
1
.
1
2
1
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0
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1
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2
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1
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9
2
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.
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1
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0
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0
.
5
6
2
0
0
2
0
5
1
.
2
3
1
8
0
1
8
0
0
.
0
0
T
ab
le
6
.
C
o
m
p
a
r
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n
b
etwe
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er
ag
e
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m
in
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ce
lev
els
p
r
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b
y
th
e
s
im
u
latio
n
m
o
d
els an
d
th
e
r
eq
u
ir
ed
illu
m
in
an
ce
lev
el
s
tip
u
lated
in
th
e
MS
1
5
2
5
s
tan
d
ar
d
f
o
r
lect
u
r
e
r
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s
R
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e
A
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R
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e
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O
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R
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4
W
i
t
h
i
n
r
a
n
g
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Ad
v
Ap
p
l Sci
I
SS
N:
2252
-
8
8
1
4
I
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min
a
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s
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d
y
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f le
ctu
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r
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n
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4.
B
I
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G
RAP
H
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S O
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AUTH
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RS
Mu
h
a
m
m
a
d
As
y
r
a
f
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a
in
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l
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s
b
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rn
in
I
p
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h
,
P
e
ra
k
,
M
a
lay
s
ia,
in
1
9
9
7
.
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re
c
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iv
e
d
h
is
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l
o
m
a
in
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tri
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ic
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g
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m
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li
tek
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n
g
k
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Om
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r
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in
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0
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a
n
d
h
is
B
En
g
.
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n
s.)
d
e
g
re
e
i
n
El
e
c
tri
c
a
l
En
g
in
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e
rin
g
fr
o
m
Un
iv
e
rsit
i
Tek
n
i
k
a
l
M
a
la
y
sia
M
e
lak
a
in
2
0
2
2
.
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is
c
u
rre
n
tl
y
w
o
rk
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n
g
a
s
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n
As
sista
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t
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g
in
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r
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t
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b
a
tan
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n
y
iara
n
M
a
lay
sia
.
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c
a
n
b
e
c
o
n
tac
ted
a
t
e
m
a
il
:
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sy
ra
fz
a
in
a
ll
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m
a
il
.
c
o
m
.
S
h
a
r
in
A
b
G
h
a
n
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re
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e
iv
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d
h
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s
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g
.
(Ho
n
s.)
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e
g
re
e
i
n
El
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c
tri
c
a
l
En
g
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rin
g
fro
m
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v
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n
i
k
a
l
M
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n
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0
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,
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E
n
g
.
d
e
g
re
e
in
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tri
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a
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E
n
g
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n
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e
rin
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fro
m
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Ten
a
g
a
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sio
n
a
l
in
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0
1
2
,
a
n
d
a
P
h
.
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d
e
g
re
e
in
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e
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tri
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l
En
g
in
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e
rin
g
fro
m
Un
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e
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Tek
n
o
l
o
g
i
M
a
lay
sia
in
2
0
1
9
.
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rre
n
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ly
,
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e
is
se
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v
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g
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s
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,
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i
v
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Tek
n
ik
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l
M
a
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sia
M
e
lak
a
.
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re
se
a
rc
h
in
tere
sts
a
re
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n
t
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re
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o
n
h
ig
h
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ip
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t
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m
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it
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re
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n
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c
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l
in
su
l
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ti
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e
sig
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ts,
a
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iza
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h
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s
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tstan
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se
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in
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(
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(6
5
)
j
o
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r
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a
lso
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s
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x
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e
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u
lt
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ti
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n
w
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with
i
n
d
u
stries
re
late
d
t
o
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lec
tri
c
a
l
in
sta
ll
a
ti
o
n
d
e
sig
n
,
tr
a
n
sfo
rm
e
r
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o
n
d
it
i
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n
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ss
e
ss
m
e
n
t,
a
n
d
p
a
rti
a
l
d
isc
h
a
rg
e
a
n
a
ly
sis.
He
c
a
n
b
e
c
o
n
tac
ted
a
t
e
m
a
il
:
sh
a
rin
a
g
@u
tem
.
e
d
u
.
m
y
.
Im
r
a
n
S
u
t
a
n
C
h
a
irul
wa
s
b
o
rn
in
Ku
a
la
Lu
m
p
u
r,
M
a
lay
s
ia,
in
1
9
8
4
.
He
re
c
e
iv
e
d
h
is
BEn
g
.
(Ho
n
s.)
d
e
g
re
e
in
El
e
c
tri
c
a
l
En
g
i
n
e
e
rin
g
fro
m
Un
iv
e
rsiti
Tek
n
ik
a
l
M
a
lay
sia
M
e
lak
a
in
2
0
0
8
,
a
n
d
M
En
g
.
d
e
g
re
e
in
El
e
c
tri
c
a
l
E
n
g
in
e
e
rin
g
fr
o
m
Un
i
v
e
rsiti
Ten
a
g
a
Na
sio
n
a
l
in
2
0
1
2
.
He
re
c
e
n
tl
y
c
o
m
p
lete
d
h
is
P
h
.
D.
d
e
g
re
e
in
El
e
c
tri
c
a
l
En
g
i
n
e
e
rin
g
fro
m
Un
iv
e
rsiti
Tek
n
i
k
a
l
M
a
lay
si
a
M
e
lak
a
a
n
d
D
E
ng
.
d
e
g
re
e
in
Li
fe
a
n
d
M
a
teria
ls
S
y
ste
m
s
En
g
i
n
e
e
rin
g
fr
o
m
To
k
u
s
h
ima
Un
iv
e
rsity
,
Ja
p
a
n
.
His
re
se
a
rc
h
is
fo
c
u
se
d
o
n
v
e
g
e
tab
le
-
b
a
se
d
tran
sfo
rm
e
r
d
iele
c
tri
c
li
q
u
i
d
s.
He
c
a
n
b
e
c
o
n
tac
ted
a
t
e
m
a
il
:
imra
n
sc
@u
tem
.
e
d
u
.
m
y
.
Mo
h
d
S
h
a
h
r
il
Ah
m
a
d
K
h
ia
r
wa
s
b
o
rn
in
S
e
lan
g
o
r,
M
a
lay
s
ia,
in
1
9
8
4
.
He
re
c
e
iv
e
d
h
is
BS
c
.
d
e
g
re
e
in
E
lec
tri
c
a
l
a
n
d
El
e
c
tro
n
ics
En
g
i
n
e
e
rin
g
fro
m
K
o
re
a
Un
i
v
e
rsity
in
2
0
0
8
,
a
M
a
ste
r’s
d
e
g
re
e
in
El
e
c
tr
ica
l
En
g
in
e
e
rin
g
fro
m
U
n
iv
e
rsiti
Ten
a
g
a
Na
sio
n
a
l
in
2
0
1
2
,
a
n
d
a
P
h
.
D.
d
e
g
re
e
fro
m
t
h
e
U
n
iv
e
rsity
of
S
o
u
th
a
m
p
t
o
n
,
Un
it
e
d
Kin
g
d
o
m
,
in
2
0
1
9
.
He
is
c
u
rre
n
tl
y
se
rv
i
n
g
as
S
e
n
io
r
Lec
tu
r
e
r
at
th
e
F
a
c
u
lt
y
of
El
e
c
tri
c
a
l
Tec
h
n
o
lo
g
y
a
n
d
E
n
g
i
n
e
e
rin
g
,
Un
iv
e
rsiti
Te
k
n
i
k
a
l
M
a
lay
sia
M
e
lak
a
,
a
n
d
as
De
p
u
ty
He
a
d
of
th
e
El
e
c
tri
c
a
l
As
se
t
Co
n
d
it
i
o
n
M
o
n
i
to
ri
n
g
(e
-
A
M
CM
)
Re
se
a
rc
h
G
ro
u
p
.
His
re
se
a
rc
h
in
tere
sts
in
c
l
u
d
e
h
i
g
h
v
o
lt
a
g
e
e
n
g
in
e
e
rin
g
a
n
d
i
n
su
lati
o
n
m
a
te
rials,
se
n
so
rs,
c
o
n
d
it
io
n
m
o
n
it
o
r
in
g
f
o
r
p
o
we
r
e
q
u
ip
m
e
n
t
,
a
n
d
a
ss
e
t
m
a
n
a
g
e
m
e
n
t.
S
in
c
e
2
0
1
3
,
he
h
a
s
p
u
b
li
sh
e
d
o
v
e
r
28
re
fe
re
e
d
c
o
n
fe
re
n
c
e
a
n
d
j
o
u
r
n
a
l
p
a
p
e
rs
a
ss
o
c
iate
d
with
tran
sfo
rm
e
r
c
o
n
d
i
ti
o
n
m
o
n
it
o
rin
g
a
n
d
a
ss
e
t
m
a
n
a
g
e
m
e
n
t.
He
c
a
n
b
e
c
o
n
tac
ted
a
t
e
m
a
il
:
m
o
h
d
.
s
h
a
h
ril
@u
tem
.
e
d
u
.
m
y
.
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