Page 31 - การใช้ฐานข้อมูลวารสารอิเล็กทรอนิกส์ ScienceDirect

* \9l'eJ1J
'1~lJlflfl11 1 'IJ'e)
51
51
'
el'U "l
3
1.4
9
6
4.8
2.7
,,j
'V111'0tl
114
218
55.1
83.2
104
65.7
'1'111'\'ltll'U'W'U'li '1'1111tl~l'U
183
88.4
60.8
15.2
202
19
0
,/
Q
..:::t.
0
"'
'H' lfl 11111 l l'llll\91 lJ
68.6
142
80
64.0
222
""
66.9
51 ""
'
1h::; flel'IJ fll'jl~ tl'U fll';j" treJ'U
104
95
50.2
76.0
199
59.9
1\ilQU"a:::tl-:.lflfll"a 'll!lll'llellJil
,!
!ii
, !ii
_1
..,
el'U "l
30
14.5
37
7
5.6
11.1
,,j
24
11.6
20
13.3
44
16.0
-nifl
fllfll'lfl/flW:::
137
238
80.8
101
66.2
71.7
•
'H'el~trlJ~flW:::
53
25.6
19.9
10.4
13
66
51
u
•
•
'H' eJtrlJ~flW mli~'H'J;l ~"1
72
17
34.8
26.8
13.6
89
tltllll'fl'fl! 'llrHl il'Vi1!\il0"a !Viel tllJflll *
<!I
d~!i/
,! <!I
!ii
""'
'
' '
3
1.5
el'U "l
1.6
5
1.5
2
,,j
'eJ1 '111 ti ! l'I el 'U
., ,,j
mu u:::m'\Jei~u11w 11flll
55.6
115
36
45.5
151
28.8
0
0
~ ef
"'
fl11trel'Ufl11 'lfil'U'\JellJJ;l
31
15.0
39
6.4
11.7
8
, 51
51
..
"'
"'
fllJelfl11 'lfil'U'\JeJlJJ;l
20
18.8
39
59
17.8
16.0
,51
•<!I
51
..
"'
!1tl'U1~1tl\9l'Ultl~
267
80.2
166
101
80.8
80.4
5151
"'
Tlifll"H"HJUJfll"a 'll!lll'll01Jil *
<=I
"'<=I
!ii
51
, !ii
~1'U1'U
~1'U1'U
~1'U1'U
'j'e)tJJ;l:::
'j 'e) tJJ;l::;
'j 'e) tJJ;l::;
51
51
51
N= 332
tr fll l'I fll ';j" , ~
'U flrl'fllll
'e)l,Jl'jtJ
"'c!I
1111
.,
"'
\ill"H:j'fl 3 '1 l'U 1'U!W:::1mrn:::'IJ'eJ~trflll'lfl11 'lf1J1fl11'\J'e)~ ~\9l'eJ1JU 1J1Jtr'eJ1JtlllJ '11!! 'U fl\911lJtrtll'Uflll'I
.c:::::i,
'j/
0
O
51
<=I
'
19/
Q 1J1Jl'llJl'I
"' "" .,
u
"'
! ~ 'IH.l lJ \;l '\'l ! lJ 'U !tJ mn 1 Q 1J 1H \91 lJ tr 1 'U 'tt UJ 'HH'.rn ::; 6 6. 6 9fe)1J 'lf 111 'ffl 1 eH \;I fl '1'1 'H)'U fl tr lJ1 fl m 1111 m 1
~ 5151
""d
•51
"".,
"'d
'
ddj
151
' 1
24