||||
Topics |
Frq | |
1 |
916 | |
2 |
511 | |
3 |
326 | |
4 |
264 | |
5 |
217 | |
6 |
169 | |
7 |
141 | |
8 |
131 | |
9 |
125 | |
10 |
124 | |
11 |
115 | |
12 |
113 | |
13 |
110 | |
14 |
103 | |
15 |
96 | |
16 |
79 | |
17 |
77 | |
18 |
75 | |
19 |
73 | |
20 |
72 |
Important words |
Frq | |
1 |
710 | |
2 |
91 | |
3 |
41 | |
4 |
257 | |
5 |
191 | |
6 |
770 | |
7 |
63 | |
8 |
191 | |
9 |
6 | |
10 |
58 | |
11 |
54 | |
12 |
144 | |
13 |
138 | |
14 |
56 | |
15 |
92 | |
16 |
89 | |
17 |
127 | |
18 |
10 | |
19 |
66 | |
20 |
20 |
Author |
frq | |
1 |
40 | |
2 |
18 | |
3 |
18 | |
4 |
16 | |
5 |
16 | |
6 |
16 | |
7 |
14 | |
8 |
14 | |
9 |
10 | |
10 |
10 | |
11 |
10 | |
12 |
9 | |
13 |
9 | |
14 |
9 | |
15 |
9 | |
16 |
8 | |
17 |
8 | |
18 |
7 | |
19 |
7 | |
20 |
7 |
Affiliations |
frq | |
1 |
323 | |
2 |
225 | |
3 |
100 | |
4 |
76 | |
5 |
73 | |
6 |
62 | |
7 |
45 | |
8 |
43 | |
9 |
41 | |
10 |
36 | |
11 |
33 | |
12 |
30 | |
13 |
27 | |
14 |
26 | |
15 |
26 | |
16 |
25 | |
17 |
24 | |
18 |
24 | |
19 |
22 | |
20 |
22 |
Journals |
frq | |
1 |
278 | |
2 |
190 | |
3 |
122 | |
4 |
56 | |
5 |
42 | |
6 |
34 | |
7 |
32 | |
8 |
29 | |
9 |
27 | |
10 |
22 | |
11 |
19 | |
12 |
17 | |
13 |
17 | |
14 |
14 | |
15 |
13 | |
16 |
13 | |
17 |
12 | |
18 |
11 | |
19 |
11 | |
20 |
9 |
Years |
| |
1 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
2 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
3 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
4 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
5 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
6 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
7 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
8 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
9 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
10 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
11 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
12 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
13 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
14 |
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |
15 |
xxxxxxxxxxxxxxxxxxxxxxxxx | |
16 |
xxxxxxxxxxxxxxxxxxxxxxx | |
17 |
xxxxxxxxxxxxxxxxxxxxxxxxxxx | |
18 |
xxxxxxxxxxxxxxxxxxxxxxxxx | |
19 |
xxxxxxxxxxxxxxxxxxxxxxx | |
20 |
xxxxxxxxxxxxx |
Topics |
Frq | |
217 | ||
1 |
511 | |
2 |
326 | |
3 |
264 | |
4 |
217 | |
5 |
169 | |
6 |
131 | |
7 |
125 | |
8 |
96 | |
9 |
79 | |
10 |
77 | |
11 |
75 | |
12 |
72 | |
13 |
48 | |
14 |
43 | |
15 |
17 | |
215 |
Archiver|手机版|科学网 ( 京ICP备07017567号-12 )
GMT+8, 2024-6-2 21:39
Powered by ScienceNet.cn
Copyright © 2007- 中国科学报社