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in
p
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[
1
]
.
I
t
is
a
n
u
m
b
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j
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s
w
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co
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x
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f
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s
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ttin
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s
”
[
2
]
.
Hu
m
a
n
f
ac
to
r
is
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n
e
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f
th
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i
m
p
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tan
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Evaluation Warning : The document was created with Spire.PDF for Python.
T
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A
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p
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Dete
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f
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r
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[
3
,
4
]
.
T
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t
d
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5
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I
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5
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6
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,
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n
s
id
er
atio
n
h
u
m
a
n
f
ac
to
r
s
in
p
r
o
d
u
ctio
n
s
y
s
te
m
[
7
]
.
L
atter
l
y
,
m
a
n
y
r
e
s
ea
r
ch
er
s
p
a
y
atten
tio
n
i
n
in
co
r
p
o
r
atin
g
t
h
e
h
u
m
a
n
f
ac
to
r
s
i
n
p
r
o
d
u
ctio
n
s
y
s
te
m
s
,
ac
co
r
d
in
g
to
th
e
tec
h
n
o
lo
g
y
r
e
v
o
lu
t
io
n
a
n
d
th
e
in
cr
ea
s
in
g
atte
n
tio
n
i
n
s
ch
ed
u
lin
g
p
r
o
b
le
m
s
.
I
n
[
8
-
12]
h
av
e
d
ed
u
ce
d
t
h
at
it's
i
m
p
o
r
tan
t
to
in
cl
u
d
e
th
e
h
u
m
a
n
f
ac
to
r
s
in
p
r
o
d
u
ctio
n
s
ch
ed
u
lin
g
an
d
o
p
er
atio
n
m
a
n
ag
e
m
e
n
t
ac
tiv
ities
.
In
[
13
]
s
tu
d
ied
t
h
e
i
n
f
lu
e
n
ce
o
f
th
e
h
u
m
a
n
f
ac
to
r
s
i
n
t
h
e
p
r
o
d
u
ctio
n
p
er
f
o
r
m
an
ce
,
a
s
w
o
r
k
er
'
s
i
n
tellect
u
al
ca
p
ab
ilit
ies,
k
n
o
w
led
g
ea
b
ilit
y
,
j
o
b
u
n
d
er
s
tan
d
i
n
g
,
a
n
d
j
o
b
p
e
r
f
o
r
m
an
ce
.
I
n
o
r
d
er
to
s
tu
d
y
th
e
co
n
n
o
tati
o
n
o
f
m
u
lti
-
le
v
el
o
f
f
lex
ib
il
it
y
o
f
w
o
r
k
er
s
,
b
y
u
s
i
n
g
a
s
i
m
u
la
tio
n
,
[
14
]
co
n
clu
d
ed
th
at
th
e
v
ar
iet
y
o
f
th
e
w
o
r
k
er
s
'
f
le
x
ib
ilit
y
is
b
etter
th
an
f
i
x
ed
f
le
x
ib
ilit
y
.
I
n
[
6
]
c
o
n
clu
d
ed
th
at
th
e
r
elatio
n
s
b
et
w
ee
n
t
h
e
p
r
o
d
u
ctio
n
s
y
s
te
m
an
d
h
u
m
a
n
f
ac
to
r
s
ar
e
v
er
y
i
m
p
o
r
tan
t,
[
15
]
d
ed
u
ce
d
th
at
th
e
v
ar
ia
n
ce
s
b
et
w
ee
n
w
o
r
k
e
r
s
s
h
o
u
ld
b
e
tak
en
i
n
to
co
n
s
id
er
atio
n
w
h
e
n
p
r
ep
ar
atio
n
th
e
p
r
o
ce
d
u
r
es
an
d
m
an
a
g
i
n
g
th
e
w
o
r
k
f
o
r
ce
.
I
n
[
16
]
co
n
s
tr
u
cted
a
m
a
th
e
m
atica
l
m
o
d
el,
i
n
o
r
d
er
to
d
ea
l
w
it
h
a
c
o
n
cu
r
r
en
t
d
y
n
a
m
ic
ce
ll
f
o
r
m
i
n
g
a
n
d
th
e
p
r
o
b
lem
o
f
w
o
r
k
er
m
is
s
io
n
an
d
p
o
in
ted
o
u
t
th
e
i
m
p
o
r
tan
ce
o
f
i
n
clu
d
i
n
g
h
u
m
a
n
is
s
u
e
s
in
to
a
tr
ad
itio
n
al
d
y
n
a
m
ic
ce
ll
f
o
r
m
i
n
g
.
In
[
17
]
d
ev
elo
p
ed
th
e
co
n
ce
p
t
u
al
f
r
a
m
e
w
o
r
k
in
o
r
d
er
to
h
elp
th
e
er
g
o
n
o
m
is
t
s
in
t
h
eir
in
v
esti
g
a
tio
n
,
in
s
tr
u
c
tio
n
,
an
d
t
h
e
p
u
r
s
u
it
o
f
u
n
d
er
s
ta
n
d
in
g
h
o
w
to
u
n
d
er
p
in
th
e
s
tr
ate
g
ic
tar
g
et
s
o
f
a
co
m
p
an
y
.
T
h
is
co
n
ce
p
tu
al
f
r
a
m
e
w
o
r
k
s
u
p
p
o
r
ts
th
e
p
r
o
f
ess
io
n
als
o
f
er
g
o
n
o
m
ics
to
co
n
ce
n
tr
ate
th
eir
ef
f
o
r
ts
o
n
er
g
o
n
o
m
ics
tak
in
g
in
to
ac
co
u
n
t
w
o
r
k
p
er
f
o
r
m
a
n
ce
r
ath
er
th
an
o
cc
u
p
atio
n
al
h
ea
lt
h
an
d
s
af
et
y
[
7
]
.
T
h
e
ap
p
licatio
n
o
f
a
lear
n
in
g
cu
r
v
e
o
f
w
o
r
k
er
s
in
d
if
f
er
en
t
m
an
u
f
ac
t
u
r
in
g
s
et
tin
g
s
h
a
s
b
ee
n
w
ell
d
o
cu
m
en
ted
in
th
e
liter
at
u
r
e
[
18
-
21
]
m
e
n
tio
n
ed
th
at
t
h
e
f
lex
ib
ilit
y
in
th
e
w
o
r
k
'
s
tas
k
s
a
n
d
th
e
co
n
v
e
n
ie
n
t
ta
s
k
o
f
w
o
r
k
er
s
to
s
h
i
f
ts
ca
n
b
o
t
h
h
av
e
an
in
f
l
u
e
n
ce
o
n
w
o
r
k
er
ef
f
icie
n
c
y
.
I
n
[
15
]
m
en
ti
o
n
ed
th
at,
s
o
lv
i
n
g
th
e
p
r
o
d
u
ctio
n
s
ch
ed
u
li
n
g
w
h
e
n
in
co
r
p
o
r
atin
g
t
h
e
h
u
m
an
f
ac
t
o
r
s
,
w
h
ic
h
m
atch
e
s
m
o
r
e
to
r
ea
lit
y
o
f
p
r
o
d
u
ctio
n
en
v
ir
o
n
m
e
n
t
s
,
t
h
u
s
t
h
e
d
e
m
o
n
s
tr
ate
o
f
e
x
te
n
s
i
v
e
r
esear
c
h
is
s
till
n
ee
d
ed
i
n
t
h
is
f
ield
.
T
h
e
m
aj
o
r
id
ea
in
th
e
ab
o
v
e
liter
atu
r
e
r
ev
ie
w
,
th
at
h
u
m
a
n
f
ac
to
r
s
h
av
e
t
h
e
ab
ilit
y
to
en
h
a
n
ce
m
en
t
t
h
e
p
r
o
d
u
ctio
n
ef
f
icie
n
c
y
,
th
er
ef
o
r
e,
th
e
y
s
h
o
u
ld
b
e
tak
en
in
to
co
n
s
id
er
atio
n
w
h
en
p
r
o
d
u
ctio
n
s
c
h
ed
u
li
n
g
,
in
s
p
ite
o
f
litt
le
s
t
u
d
ies
th
at
tack
led
th
i
s
f
ac
to
r
.
T
ag
u
ch
i m
et
h
o
d
is
a
n
e
x
p
er
i
m
en
tal
d
esi
g
n
w
h
ic
h
is
a
n
at
te
m
p
t
to
ad
j
u
s
t
th
e
o
p
er
ato
r
s
an
d
p
ar
am
eter
s
o
f
th
e
p
r
o
p
o
s
ed
m
o
d
el.
First,
a
f
r
ac
tio
n
al
f
ac
to
r
ial
e
x
p
er
im
en
t
(
FF
E
)
w
as
d
e
v
elo
p
ed
in
o
r
d
er
to
d
ec
r
ea
s
e
th
e
n
u
m
b
er
o
f
th
e
r
eq
u
ir
ed
te
s
ts
[
22
]
.
Sin
ce
all
t
h
e
p
o
s
s
ib
l
e
co
m
b
in
atio
n
s
u
s
ed
to
esti
m
ate
th
e
in
f
l
u
en
ce
o
f
f
ac
to
r
s
an
d
s
o
m
e
o
f
th
eir
in
t
er
ac
tio
n
s
ar
e
n
o
t
p
er
m
itted
b
y
F
FEs
b
u
t
r
ath
er
a
s
m
all
p
o
r
tio
n
,
a
f
am
i
l
y
o
f
FF
E
m
atr
ice
s
w
as
d
ev
elo
p
ed
b
y
T
ag
u
c
h
i
w
it
h
th
e
h
o
p
e
o
f
d
ec
r
ea
s
in
g
th
e
n
u
m
b
er
o
f
t
h
e
ex
p
er
i
m
e
n
t
s
,
b
u
t
th
e
o
u
tco
m
e
s
s
h
o
w
ed
th
at
it
p
r
o
v
id
ed
in
s
u
f
f
icie
n
t
a
m
o
u
n
t
o
f
in
f
o
r
m
a
tio
n
[
23
]
.
T
a
g
u
c
h
i
h
a
s
f
o
r
m
ed
a
tr
an
s
f
o
r
m
atio
n
o
f
t
h
e
f
r
e
q
u
en
c
y
o
f
d
ata
to
an
o
th
er
v
alu
e
k
n
o
w
n
a
s
th
e
m
ea
s
u
r
e
o
f
v
ar
iatio
n
.
T
h
is
tr
an
s
f
o
r
m
atio
n
is
th
e
s
i
g
n
al
-
to
-
n
o
is
e
(
S/N)
r
atio
.
I
t
is
u
s
ed
to
ex
p
lain
th
e
r
ea
s
o
n
w
h
y
t
h
i
s
t
y
p
e
o
f
p
ar
am
eter
d
esig
n
is
ca
lled
r
o
b
u
s
t
d
esi
g
n
[
24
]
.
I
n
th
is
f
as
h
io
n
,
t
h
e
u
s
e
o
f
t
h
e
ter
m
‘
s
i
g
n
al
’
r
ef
e
r
s
to
t
h
e
d
esira
b
le
v
al
u
e
w
h
ic
h
is
t
h
e
‘
m
ea
n
r
e
s
p
o
n
s
e
v
ar
iab
le,
w
h
er
ea
s
t
h
e
ter
m
‘
n
o
i
s
e’
r
e
f
er
s
to
t
h
e
u
n
d
esira
b
le
v
alu
e
d
e
n
o
tin
g
th
e
s
tan
d
ar
d
d
ev
iatio
n
.
A
s
a
r
esu
lt,
th
e
d
e
g
r
ee
o
f
v
ar
iatio
n
f
o
u
n
d
i
n
t
h
e
r
esp
o
n
s
e
v
ar
iab
le
ca
n
b
e
i
n
d
icate
d
b
y
th
e
r
atio
o
f
S/N.
T
ag
u
ch
i
u
s
ed
th
r
ee
ca
teg
o
r
ies
to
class
i
f
y
t
h
e
o
b
j
ec
tiv
e
f
u
n
ctio
n
s
.
T
h
ese
ca
teg
o
r
ies
o
r
ty
p
es
ar
e
th
e
s
m
aller
-
th
e
-
b
etter
,
th
e
l
ar
g
er
-
t
h
e
-
b
etter
,
an
d
n
o
m
i
n
a
l
-
is
-
b
est
t
y
p
es
.
B
ased
o
n
th
ese
class
i
f
icatio
n
s
,
th
e
co
r
r
esp
o
n
d
in
g
S
/N
r
ati
o
o
f
th
e
o
b
j
ec
tiv
e
f
u
n
c
tio
n
s
in
s
c
h
ed
u
li
n
g
,
w
h
ich
u
s
u
all
y
f
all
u
n
d
er
th
e
s
m
aller
-
t
h
e
-
b
etter
t
y
p
e,
w
i
ll b
e:
S/N r
atio
=
-
1
0
lo
g
10
(
MSD
)
[
25
]
.
2.
RE
S
E
ARCH
M
E
T
H
O
D
T
h
e
d
ata
r
eq
u
ir
ed
f
o
r
th
is
s
tu
d
y
ar
e
g
at
h
er
ed
f
r
o
m
a
g
lass
f
ac
to
r
y
i
n
J
o
r
d
an
w
h
ich
co
n
s
i
s
ts
o
f
f
o
u
r
j
o
b
s
an
d
s
ev
e
n
g
r
o
u
p
s
o
f
w
o
r
k
er
s
.
Fu
r
th
er
m
o
r
e,
th
e
d
ata
co
n
tai
n
th
e
p
r
o
ce
s
s
in
g
ti
m
e
to
co
m
p
lete
ea
ch
s
tag
e
o
f
p
r
o
d
u
ctio
n
o
p
er
atio
n
an
d
th
e
s
tar
t ti
m
e
f
o
r
ea
ch
o
p
er
atio
n
in
ea
ch
j
o
b
,
an
d
th
e
to
tal
ti
m
e
th
at
th
e
f
ac
to
r
y
n
ee
d
s
to
co
m
p
lete
t
h
e
w
h
o
le
p
r
o
d
u
ct
io
n
o
p
er
atio
n
.
T
h
e
f
ir
s
t
s
tep
in
th
is
s
tu
d
y
i
s
p
r
o
p
o
s
in
g
a
J
SS
m
o
d
el
to
f
in
d
th
e
m
i
n
i
m
u
m
to
tal
ti
m
e
n
ee
d
ed
t
o
co
m
p
lete
th
e
w
h
o
le
p
r
o
d
u
ctio
n
p
r
o
ce
s
s
(
m
ak
e
s
p
an
)
as
w
ell
as
ad
d
in
g
f
le
x
ib
ilit
y
to
th
e
w
o
r
k
er
s
'
w
o
r
k
in
g
ti
m
e
b
y
u
s
i
n
g
th
e
w
ei
g
h
ta
g
e
v
alu
e
s
w
h
ic
h
i
s
o
b
tain
ed
f
r
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r
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41
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Fo
r
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2
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32
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3
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73
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4
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Fo
r
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54
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(
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r
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In
(6
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co
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o
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as tas
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−
13
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3
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13
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)
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
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6
9
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T
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5
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2771
2768
I
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task
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t
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at
h
a
v
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k
s
in
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s
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n
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clu
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as
w
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=
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3.
RE
SU
L
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A
ND
AN
AL
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etail
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m
p
ar
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o
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f
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lts
w
ith
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ata
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s
in
cl
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ed
.
3
.
1
.
P
r
o
po
s
ed
m
o
del o
f
J
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P
re
s
ults
Usi
n
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F
ig
u
r
e
1
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d
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ab
le
1
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p
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m
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el
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f
J
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d
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to
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b
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titu
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p
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ti
m
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g
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r
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2
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t
h
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e
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o
b
3
,
w
h
ic
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s
co
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s
id
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ed
as th
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est o
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e.
Dep
en
d
in
g
o
n
Fig
u
r
e
1
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ti
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e
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6
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b
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co
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d
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to
Fig
u
r
e
2
,
th
e
p
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h
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w
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p
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f
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2
3
1
m
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w
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p
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v
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t
t
h
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el
i
m
p
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t
h
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to
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y
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s
p
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d
u
ctio
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m
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ti
m
e.
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n
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d
itio
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to
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e
p
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p
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m
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d
el
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ed
f
lex
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ilit
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to
w
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r
s
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p
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ei
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h
tag
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3
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2
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a
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s
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eq
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en
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o
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tag
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to
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o
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:
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m
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a
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ad
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in
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ex
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to
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w
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O
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f
t
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et
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s
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n
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g
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ex
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itab
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s
p
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lem
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L
9
w
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ic
h
co
n
s
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t
s
o
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in
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p
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t
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r
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d
eter
m
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r
ee
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o
f
w
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(
0
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,
0
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1
5
,
0
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2
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,
an
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c
o
n
s
id
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th
e
w
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k
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s
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g
r
o
u
p
s
as
f
o
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r
f
a
cto
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as e
x
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ab
o
v
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Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KOM
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K
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m
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2769
Fig
u
r
e
2
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Dis
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h
is
r
elate
d
f
o
r
s
m
aller
is
th
e
b
etter
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u
s
in
g
ex
ce
l
s
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l
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er
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o
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tain
C
m
ax
f
o
r
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t,
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n
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al
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lt
s
p
r
o
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ce
d
b
y
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ag
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ch
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d
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b
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s
in
g
s
ig
n
a
l
to
n
o
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e
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a
tio
(
SN
R
)
.
T
o
f
i
n
d
o
p
ti
m
u
m
s
o
l
u
tio
n
r
esu
lted
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y
SN
R
tab
le,
th
e
r
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ch
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s
i
n
cl
u
d
ed
in
ea
ch
ex
p
er
i
m
en
t
t
h
e
r
es
u
lt
o
f
ea
ch
j
o
b
,
as
s
h
o
w
n
in
T
ab
le
2
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A
litt
le
b
it
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f
w
o
r
k
to
g
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th
e
b
est
s
eq
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ap
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ep
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l
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r
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d
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ab
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3
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T
ab
le
2.
Sig
n
al
to
n
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is
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r
atio
(
SNR
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p
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me
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6930
T
E
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KOM
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K
A
T
elec
o
m
m
u
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p
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C
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n
tr
o
l
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Vo
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18
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No
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5
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b
e
r
2
0
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0
:
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6
4
-
2771
2770
T
ab
le
3.
S/N r
atio
m
ea
n
A1
A2
A3
B1
B2
B3
-
3
5
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4
1
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5
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5
3
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5
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6
6
-
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5
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5
3
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3
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3
5
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5
5
C1
C2
C3
D1
D2
D3
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3
5
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5
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5
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5
4
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5
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5
4
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4
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5
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5
4
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1
1
A
i
, B
i
, C
i
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a
n
d
D
i
ar
e
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e
m
ea
n
v
al
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e
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f
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/
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atio
s
th
a
t is r
el
ated
to
g
r
o
u
p
1
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3
,
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d
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c
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eq
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y
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el
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ea
ch
o
f
3
1
,,
(
/
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,
3
ij
j
Ci
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i
SN
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i
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i
w
h
er
e
j
is
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e
n
u
m
b
er
o
f
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els,
an
d
i
=1
,
2
,
3
.
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ased
on
T
a
b
le
3
,
an
d
ac
co
r
d
in
g
to
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e
r
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le
o
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s
m
aller
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e
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e
r
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ch
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s
co
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ld
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m
i
n
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th
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est
s
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en
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n
e,
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ch
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d
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t
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est
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at
let
t
h
e
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ch
er
s
ac
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f
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t
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k
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n
g
t
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m
e.
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el
y
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g
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n
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3
,
th
e
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ch
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s
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o
t
th
e
r
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lt
th
a
t
f
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e,
t
w
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t
w
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g
h
tag
e
is
0
.
2
,
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d
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r
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h
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est s
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0
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2
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0
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1
5
,
0
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2
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)
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3.
3
.
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o
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ig
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lc
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g
ti
m
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f
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r
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g
r
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p
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ch
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b
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lcu
lati
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m
ak
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an
,
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m
p
ar
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th
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tain
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y
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p
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e
d
m
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w
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t
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d
T
ag
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ch
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ich
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E
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ata,
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e
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s
o
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tain
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th
e
r
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lt
s
s
h
o
w
n
i
n
T
ab
le
4
.
B
ased
o
n
T
ab
le
4
,
T
ag
u
ch
i
m
et
h
o
d
d
ec
r
ea
s
es
th
e
ti
m
e
n
ee
d
ed
to
co
m
p
lete
t
h
e
w
h
o
le
p
r
o
d
u
ctio
n
f
lo
w
a
n
d
ad
d
ed
f
lex
ib
ilit
y
t
o
w
o
r
k
er
s
'
w
o
r
k
i
n
g
ti
m
e
m
o
r
e
th
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t
h
e
r
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l
ts
o
f
th
e
p
r
o
p
o
s
ed
m
o
d
el.
T
ab
le
4
.
R
esu
lts
s
u
m
m
ar
y
V
a
r
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a
b
l
e
m
a
x
C
11
t
21
t
31
t
41
t
22
t
32
t
52
t
62
t
13
t
53
t
63
t
73
t
14
t
44
t
54
t
74
t
T
a
g
u
c
h
i
me
t
h
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d
2
3
9
0
15
30
60
0
15
30
60
15
75
1
4
0
1
7
0
30
45
60
80
P
r
o
p
o
se
d
C
JS
S
2
3
0
0
15
30
60
0
15
30
60
30
75
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4
0
1
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0
15
30
60
80
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r
i
g
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n
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l
d
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t
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2
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15
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2
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5
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30
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1
1
0
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4
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0
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1
5
2
3
0
2
4
5
4.
CO
NCLU
SI
O
N
Dep
en
d
in
g
o
n
T
ab
le
4
,
u
s
in
g
T
ag
u
c
h
i
m
et
h
o
d
f
o
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lv
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e
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ed
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m
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e
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le
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y
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h
h
as
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e
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i
g
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e
s
t
w
eig
h
ta
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t
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el.
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e
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e
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t
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g
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w
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g
h
ta
g
e
w
h
ic
h
w
ill
b
e
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e
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r
ee
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o
als:
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ir
s
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y
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tal
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il
l
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2
3
9
m
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s
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f
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RE
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NC
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S
[1
]
M
.
R.
S
i
n
g
h
,
"
A
stu
d
y
o
n
f
le
x
ib
le
f
lo
w
sh
o
p
a
n
d
jo
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sh
o
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d
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li
n
g
u
sin
g
m
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h
e
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risti
c
a
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p
ro
a
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s,"
A
T
h
e
sis
S
u
b
m
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ted
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n
F
u
lf
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lm
e
n
t
o
f
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h
e
Re
q
u
irem
e
n
t
f
o
r
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h
e
Aw
a
rd
o
f
Th
e
De
g
re
e
o
f
Do
c
to
r
o
f
P
h
il
o
so
p
h
y
in
M
e
c
h
a
n
ica
l
En
g
in
e
e
rin
g
Na
ti
o
n
a
l
In
stit
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te
o
f
T
e
c
h
n
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g
y
Ro
u
rk
e
la
-
7
6
9
0
0
8
,
In
d
ia,
2
0
1
4
.
[
2
]
J
.
R
.
W
i
l
s
o
n
,
"
F
u
n
d
a
m
e
n
t
a
l
s
o
f
e
r
g
o
n
o
m
i
c
s
i
n
t
h
e
o
r
y
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n
d
p
r
a
c
t
i
c
e
,
"
A
p
p
l
i
e
d
e
r
g
o
n
o
m
i
c
s
,
v
o
l
.
3
1
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n
o
.
6
,
p
p
.
5
5
7
-
5
6
7
,
2
0
0
0
.
[3
]
W
.
Ne
u
m
a
n
n
a
n
d
P
.
M
e
d
b
o
,
"
In
t
e
g
ra
ti
n
g
h
u
m
a
n
f
a
c
to
rs
in
to
d
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re
te
e
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t
sim
u
latio
n
s
o
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l
f
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ies
,
"
Pro
d
u
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t
io
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Pl
a
n
n
in
g
a
n
d
Co
n
tro
l
,
v
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l.
2
0
,
n
o
.
1
,
p
p
.
3
-
1
6
,
2
0
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9
.
[4
]
G.
G
.
Ud
o
a
n
d
A
.
A
.
Eb
ief
u
n
g
,
"
Hu
m
a
n
fa
c
to
rs
a
ff
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ti
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su
c
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o
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d
v
a
n
c
e
d
m
a
n
u
f
a
c
t
u
rin
g
sy
ste
m
s,"
Co
mp
u
ter
s &
In
d
u
stria
l
E
n
g
in
e
e
rin
g
,
v
o
l.
3
7
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.
1
-
2
,
p
p
.
2
9
7
-
3
0
0
,
1
9
9
9
.
[5
]
M
.
G
.
He
lan
d
e
r,
"
S
e
v
e
n
c
o
m
m
o
n
re
a
so
n
s
to
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o
t
im
p
lem
e
n
t
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o
n
o
m
ics
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ter
n
a
ti
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l
jo
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rn
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l
o
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stri
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l
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o
.
1
,
p
p
.
9
7
-
1
0
1
,
2
0
0
0
.
[6
]
B.
Bid
a
n
d
a
,
P
.
A
ri
y
a
w
o
n
g
ra
t,
K.
L
.
Ne
e
d
y
,
B.
A
.
No
r
m
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n
,
a
n
d
W
.
T
h
a
r
m
m
a
p
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o
rn
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a
s,
"
Hu
m
a
n
re
late
d
issu
e
s
in
m
a
n
u
f
a
c
tu
rin
g
c
e
ll
d
e
sig
n
,
im
p
lem
e
n
tatio
n
,
a
n
d
o
p
e
ra
ti
o
n
:
a
re
v
ie
w
a
n
d
su
rv
e
y
,
"
C
o
mp
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ter
s
&
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d
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stri
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l
En
g
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g
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8
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o
.
3
,
p
p
.
5
0
7
-
5
2
3
,
2
0
0
5
.
[7
]
M
.
Oth
m
a
n
,
G
.
J.
G
o
u
w
,
a
n
d
N.
Bh
u
iy
a
n
,
"
W
o
rk
f
o
rc
e
sc
h
e
d
u
li
n
g
:
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n
e
w
m
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d
e
l
in
c
o
rp
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ra
ti
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g
h
u
m
a
n
fa
c
to
rs,"
J
o
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rn
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l
o
f
In
d
u
stri
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l
E
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g
in
e
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rin
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M
a
n
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me
n
t
(
J
IEM
),
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5
,
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o
.
2
,
p
p
.
2
5
9
-
28
4
,
2
0
1
2
.
[8
]
J.
Bo
u
d
re
a
u
,
W
.
Ho
p
p
,
J.
O.
M
c
C
lain
,
a
n
d
L
.
J.
T
h
o
m
a
s,
"
On
th
e
i
n
terf
a
c
e
b
e
twe
e
n
o
p
e
ra
ti
o
n
s a
n
d
h
u
m
a
n
re
so
u
rc
e
s
m
a
n
a
g
e
m
e
n
t,
"
M
a
n
u
fa
c
t
u
rin
g
&
S
e
rv
ice
Op
e
ra
ti
o
n
s M
a
n
a
g
e
me
n
t,
v
o
l.
5
,
n
o
.
3
,
p
p
.
1
7
9
-
2
0
2
,
2
0
0
3
.
[9
]
F
.
G
in
o
a
n
d
G
.
P
isa
n
o
,
"
T
o
w
a
rd
a
th
e
o
ry
o
f
b
e
h
a
v
io
ra
l
o
p
e
r
a
ti
o
n
s,"
M
a
n
u
f
a
c
tu
ri
n
g
&
S
e
rv
i
c
e
Op
e
ra
ti
o
n
s
M
a
n
a
g
e
me
n
t,
v
o
l.
1
0
,
n
o
.
4
4
,
p
p
.
6
7
6
-
6
9
1
,
2
0
0
8
.
[1
0
]
W
.
P
a
tr
ick
Ne
u
m
a
n
n
a
n
d
J.
Du
l
,
"
Hu
m
a
n
f
a
c
to
rs:
sp
a
n
n
i
n
g
t
h
e
g
a
p
b
e
tw
e
e
n
OM
a
n
d
HR
M
,
"
In
ter
n
a
ti
o
n
a
l
jo
u
rn
a
l
o
f
o
p
e
ra
ti
o
n
s &
p
ro
d
u
c
ti
o
n
m
a
n
a
g
e
me
n
t,
v
o
l.
3
0
,
p
p
.
9
2
3
-
9
5
0
,
2
0
1
0
.
[1
1
]
B.
Ry
a
n
,
R.
Qu
,
A
.
S
c
h
o
c
k
,
a
n
d
T
.
P
a
rry
,
"
In
teg
ra
ti
n
g
h
u
m
a
n
f
a
c
t
o
rs an
d
o
p
e
ra
ti
o
n
a
l
re
se
a
rc
h
in
a
m
u
lt
id
isc
ip
li
n
a
ry
in
v
e
stig
a
ti
o
n
o
f
ro
a
d
m
a
in
ten
a
n
c
e
,
"
Erg
o
n
o
mic
s,
v
o
l.
5
4
,
n
o
.
5
,
p
p
.
4
3
6
-
4
5
2
,
2
0
1
1
.
[1
2
]
W
.
P
.
Ne
u
m
a
n
n
a
n
d
J.
V
i
ll
a
g
e
,
"
Erg
o
n
o
m
ics
a
c
ti
o
n
re
se
a
rc
h
II:
a
f
ra
m
e
w
o
rk
f
o
r
in
teg
ra
ti
n
g
HF
in
t
o
w
o
rk
sy
ste
m
d
e
sig
n
,
"
Erg
o
n
o
mic
s,
v
o
l.
5
5
,
n
o
.
1
0
,
p
p
.
1
1
4
0
-
1
1
5
6
,
2
0
1
2
.
[1
3
]
J.
E.
Hu
n
ter,
"
Co
g
n
i
ti
v
e
a
b
il
it
y
,
c
o
g
n
it
iv
e
a
p
ti
t
u
d
e
s,
jo
b
k
n
o
w
led
g
e
,
a
n
d
jo
b
p
e
rf
o
rm
a
n
c
e
,
"
J
o
u
rn
a
l
o
f
v
o
c
a
ti
o
n
a
l
b
e
h
a
v
i
o
r,
v
o
l.
2
9
,
n
o
.
3
,
p
p
.
3
4
0
-
3
6
2
,
1
9
8
6
.
[1
4
]
J.
T
.
F
e
lan
a
n
d
T
.
D.
F
ry
,
"
M
u
lt
i
-
lev
e
l
h
e
tero
g
e
n
e
o
u
s
w
o
rk
e
r
f
l
e
x
ib
il
it
y
in
a
Du
a
l
Re
so
u
rc
e
C
o
n
stra
in
e
d
(DRC
)
jo
b
-
sh
o
p
,
"
In
ter
n
a
ti
o
n
a
l
J
o
u
r
n
a
l
o
f
Pro
d
u
c
ti
o
n
Res
e
a
rc
h
,
v
o
l.
3
9
,
n
o
.
1
4
,
p
p
.
3
0
4
1
-
3
0
5
9
,
2
0
0
1
.
[1
5
]
G
.
G
o
n
g
,
Q.
De
n
g
,
X
.
G
o
n
g
,
W
.
L
iu
,
a
n
d
Q.
Re
n
,
"
A
n
e
w
d
o
u
b
le
f
le
x
ib
le
jo
b
-
s
h
o
p
sc
h
e
d
u
li
n
g
p
r
o
b
lem
in
teg
r
a
ti
n
g
p
ro
c
e
ss
in
g
ti
m
e
,
g
r
e
e
n
p
ro
d
u
c
ti
o
n
,
a
n
d
h
u
m
a
n
f
a
c
to
r
in
d
ica
to
rs,"
J
o
u
rn
a
l
o
f
Cle
a
n
e
r
Pro
d
u
c
ti
o
n
,
v
o
l.
1
7
4
,
n
o
.
1
0
,
p
p
.
5
6
0
-
5
7
6
,
2
0
1
8
.
[
1
6
]
M
.
B
.
A
r
y
a
n
e
z
h
a
d
,
V
.
D
e
l
j
o
o
,
a
n
d
S
.
M
i
r
z
a
p
o
u
r
A
l
-
e
-
H
a
s
h
e
m
,
"
D
y
n
a
m
i
c
c
e
l
l
f
o
r
m
a
t
i
o
n
a
n
d
t
h
e
w
o
r
k
e
r
a
s
s
i
g
n
m
e
n
t
p
r
o
b
l
e
m
:
a
n
e
w
m
o
d
e
l
,
"
T
h
e
I
n
t
e
r
n
a
t
i
o
n
a
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[1
9
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M
.
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[2
2
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3
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[2
4
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[2
5
]
M
.
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.
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sl,
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.
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.
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k
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