Lev1: LEAD ACID BATTERY//LEAD ACID BATTERIES//VALVE REGULATED LEAD ACID BATTERIES - Statistics for Countries

Statistics per Country

Number of publications, full counts

Obs Country 1990-1994 1995-1999 2000-2004 2005-2009 2010-2014 All years
1 All countries 372 371 330 297 236 1606
2 China 33 30 32 65 68 228
3 United States 47 49 52 28 20 196
4 Japan 29 43 33 22 10 137
5 Germany 38 26 21 19 18 122
6 France 13 49 24 25 4 115
7 Australia 30 28 23 13 11 105
8 Bulgaria 31 13 25 22 8 99
9 United Kingdom 20 18 29 11 6 84
10 India 15 28 10 12 13 78
11 Russian Federation 15 12 16 7 7 57
12 Iran, Islamic Republic of . . . 25 20 45
13 Spain 3 6 16 12 3 40
14 Canada 9 3 4 3 17 36
15 Italy 7 9 9 5 4 34
16 Brazil 4 2 7 8 9 30
17 Poland 5 3 6 4 8 26
18 Egypt 5 8 4 2 6 25
19 Finland 18 2 2 1 1 24
20 Sweden 13 6 3 1 . 23
21 Romania 7 7 3 4 . 21
22 Korea, Republic of 1 2 7 4 3 17
23 Algeria 3 4 2 4 3 16
24 Czech Republic 1 4 4 3 4 16
25 Morocco . 3 6 2 3 14
26 Argentina 4 7 . . . 11
27 Austria 4 2 1 2 2 11
28 Chile . 1 2 4 3 10
29 New Zealand 8 . . . 1 9
30 Czechoslovakia 8 . . . . 8
31 Luxembourg . 3 2 3 . 8
32 South Africa . . 3 2 3 8
33 Switzerland 3 3 2 . . 8
34 Taiwan . 2 3 2 1 8
35 USSR 8 . . . . 8
36 Netherlands 1 2 1 3 . 7
37 Belgium 1 1 3 1 . 6
38 Croatia 2 2 . 2 . 6
39 Mexico 2 1 1 . 2 6
40 Ukraine . 3 . 1 2 6
41 Denmark 2 2 . 1 . 5
42 Norway . . 4 1 . 5
43 Greece . . 2 1 . 3
44 Indonesia . . 2 . . 2
45 Kuwait . 2 . . . 2
46 Republic of Serbia . . . . 2 2
47 Thailand . . . . 2 2
48 Turkey 1 . . . 1 2
49 United Arab Emirates 2 . . . . 2
50 Yugoslavia 1 1 . . . 2
51 Colombia . . . . 1 1
52 Fiji . . . . 1 1
53 Hungary . . . 1 . 1
54 Iraq . . 1 . . 1
55 Ireland . . . 1 . 1
56 Israel . . . . 1 1
57 Jordan 1 . . . . 1
58 Lithuania . 1 . . . 1
59 Malaysia . . . 1 . 1
60 Portugal . . . 1 . 1
61 Saudi Arabia . . . 1 . 1
62 Singapore . 1 . . . 1
63 Syrian Arab Republic . 1 . . . 1

Number of publications, full counts



Bar chart of publication_year

Share of the total number of publications in the field, full counts (%)

Obs Country 1990-1994 1995-1999 2000-2004 2005-2009 2010-2014 All years
1 All countries 100.0 100.0 100.0 100.0 100.0 100.0
2 China 8.9 8.1 9.7 21.9 28.8 14.2
3 United States 12.6 13.2 15.8 9.4 8.5 12.2
4 Japan 7.8 11.6 10.0 7.4 4.2 8.5
5 Germany 10.2 7.0 6.4 6.4 7.6 7.6
6 France 3.5 13.2 7.3 8.4 1.7 7.2
7 Australia 8.1 7.5 7.0 4.4 4.7 6.5
8 Bulgaria 8.3 3.5 7.6 7.4 3.4 6.2
9 United Kingdom 5.4 4.9 8.8 3.7 2.5 5.2
10 India 4.0 7.5 3.0 4.0 5.5 4.9
11 Russian Federation 4.0 3.2 4.8 2.4 3.0 3.5
12 Iran, Islamic Republic of . . . 8.4 8.5 2.8
13 Spain 0.8 1.6 4.8 4.0 1.3 2.5
14 Canada 2.4 0.8 1.2 1.0 7.2 2.2
15 Italy 1.9 2.4 2.7 1.7 1.7 2.1
16 Brazil 1.1 0.5 2.1 2.7 3.8 1.9
17 Poland 1.3 0.8 1.8 1.3 3.4 1.6
18 Egypt 1.3 2.2 1.2 0.7 2.5 1.6
19 Finland 4.8 0.5 0.6 0.3 0.4 1.5
20 Sweden 3.5 1.6 0.9 0.3 . 1.4
21 Romania 1.9 1.9 0.9 1.3 . 1.3
22 Korea, Republic of 0.3 0.5 2.1 1.3 1.3 1.1
23 Algeria 0.8 1.1 0.6 1.3 1.3 1.0
24 Czech Republic 0.3 1.1 1.2 1.0 1.7 1.0
25 Morocco . 0.8 1.8 0.7 1.3 0.9
26 Argentina 1.1 1.9 . . . 0.7
27 Austria 1.1 0.5 0.3 0.7 0.8 0.7
28 Chile . 0.3 0.6 1.3 1.3 0.6
29 New Zealand 2.2 . . . 0.4 0.6
30 Czechoslovakia 2.2 . . . . 0.5
31 Luxembourg . 0.8 0.6 1.0 . 0.5
32 South Africa . . 0.9 0.7 1.3 0.5
33 Switzerland 0.8 0.8 0.6 . . 0.5
34 Taiwan . 0.5 0.9 0.7 0.4 0.5
35 USSR 2.2 . . . . 0.5
36 Netherlands 0.3 0.5 0.3 1.0 . 0.4
37 Belgium 0.3 0.3 0.9 0.3 . 0.4
38 Croatia 0.5 0.5 . 0.7 . 0.4
39 Mexico 0.5 0.3 0.3 . 0.8 0.4
40 Ukraine . 0.8 . 0.3 0.8 0.4
41 Denmark 0.5 0.5 . 0.3 . 0.3
42 Norway . . 1.2 0.3 . 0.3
43 Greece . . 0.6 0.3 . 0.2
44 Indonesia . . 0.6 . . 0.1
45 Kuwait . 0.5 . . . 0.1
46 Republic of Serbia . . . . 0.8 0.1
47 Thailand . . . . 0.8 0.1
48 Turkey 0.3 . . . 0.4 0.1
49 United Arab Emirates 0.5 . . . . 0.1
50 Yugoslavia 0.3 0.3 . . . 0.1
51 Colombia . . . . 0.4 0.1
52 Fiji . . . . 0.4 0.1
53 Hungary . . . 0.3 . 0.1
54 Iraq . . 0.3 . . 0.1
55 Ireland . . . 0.3 . 0.1
56 Israel . . . . 0.4 0.1
57 Jordan 0.3 . . . . 0.1
58 Lithuania . 0.3 . . . 0.1
59 Malaysia . . . 0.3 . 0.1
60 Portugal . . . 0.3 . 0.1
61 Saudi Arabia . . . 0.3 . 0.1
62 Singapore . 0.3 . . . 0.1
63 Syrian Arab Republic . 0.3 . . . 0.1

Share of the total number of publications in the field, full counts (%)



Bar chart of publication_year

Number of publications among 10% most cited in field, full counts

Obs Country 1990-1994 1995-1999 2000-2004 2005-2009 2010-2014 All years
1 All countries 14.5 10.9 4.6 4.3 8.8 43.1
2 China 0.0 0.0 1.0 0.0 5.5 6.5
3 United States 2.7 3.0 0.4 1.3 0.0 7.4
4 Japan 1.2 2.0 0.0 0.4 0.0 3.6
5 Germany 2.0 0.2 0.0 0.0 0.0 2.2
6 France 0.7 0.2 0.0 0.0 0.0 0.9
7 Australia 2.0 0.9 0.4 1.6 0.0 4.9
8 Bulgaria 2.8 3.0 2.0 0.4 0.8 9.0
9 United Kingdom 2.4 0.0 0.0 0.4 0.0 2.8
10 India 0.0 0.0 0.0 0.0 0.0 0.0
11 Russian Federation 0.0 0.0 0.0 0.0 0.0 0.0
12 Iran, Islamic Republic of . . . 1.0 0.0 1.0
13 Spain 0.0 0.0 0.0 0.0 0.0 0.0
14 Canada 0.2 0.0 0.0 0.0 2.0 2.2
15 Italy 0.0 0.0 0.0 0.0 0.0 0.0
16 Brazil 0.0 0.0 0.0 0.0 0.0 0.0
17 Poland 0.0 0.6 0.0 0.0 0.0 0.6
18 Egypt 0.0 0.0 0.0 0.0 0.0 0.0
19 Finland 0.0 0.0 0.0 0.0 0.0 0.0
20 Sweden 0.2 0.6 0.0 0.0 . 0.8
21 Romania 0.0 0.0 0.0 0.0 . 0.0
22 Korea, Republic of 0.0 0.0 0.0 0.0 0.0 0.0
23 Algeria 0.0 0.0 0.0 0.0 0.0 0.0
24 Czech Republic 0.2 0.0 0.0 0.0 0.0 0.2
25 Morocco . 0.0 0.0 0.0 0.0 0.0
26 Argentina 1.0 0.0 . . . 1.0
27 Austria 0.7 0.0 0.0 0.0 0.0 0.7
28 Chile . 0.0 0.0 0.0 0.0 0.0
29 New Zealand 0.0 . . . 0.0 0.0
30 Czechoslovakia 0.0 . . . . 0.0
31 Luxembourg . 0.0 0.0 0.0 . 0.0
32 South Africa . . 0.0 0.0 0.0 0.0
33 Switzerland 0.0 0.2 0.0 . . 0.2
34 Taiwan . 0.0 0.0 0.0 0.0 0.0
35 USSR 0.0 . . . . 0.0
36 Netherlands 0.0 0.0 0.0 0.0 . 0.0
37 Belgium 0.0 0.0 2.0 0.0 . 2.0
38 Croatia 0.0 0.2 . 0.0 . 0.2
39 Mexico 0.0 0.0 0.0 . 0.0 0.0
40 Ukraine . 0.0 . 0.0 0.0 0.0
41 Denmark 0.2 0.0 . 0.0 . 0.2
42 Norway . . 0.0 0.0 . 0.0
43 Greece . . 0.0 0.0 . 0.0
44 Indonesia . . 0.0 . . 0.0
45 Kuwait . 0.0 . . . 0.0
46 Republic of Serbia . . . . 0.0 0.0
47 Thailand . . . . 0.0 0.0
48 Turkey 0.0 . . . 0.0 0.0
49 United Arab Emirates 0.0 . . . . 0.0
50 Yugoslavia 0.0 0.0 . . . 0.0
51 Colombia . . . . 0.0 0.0
52 Fiji . . . . 0.0 0.0
53 Hungary . . . 0.0 . 0.0
54 Iraq . . 0.0 . . 0.0
55 Ireland . . . 0.0 . 0.0
56 Israel . . . . 0.5 0.5
57 Jordan 0.0 . . . . 0.0
58 Lithuania . 0.0 . . . 0.0
59 Malaysia . . . 0.0 . 0.0
60 Portugal . . . 0.0 . 0.0
61 Saudi Arabia . . . 0.0 . 0.0
62 Singapore . 0.0 . . . 0.0
63 Syrian Arab Republic . 0.0 . . . 0.0

Number of publications among 10% most cited in field, full counts



Bar chart of publication_year

Share of publications among 10% most cited in field, fractionalized (%)

Obs Country 1990-1994 1995-1999 2000-2004 2005-2009 2010-2014 All years
1 All countries 3.9 3.0 1.4 1.4 3.7 2.7
2 China 0.0 0.0 3.3 0.0 8.6 3.0
3 United States 5.7 6.6 0.9 5.8 0.0 4.2
4 Japan 4.7 4.8 0.0 0.5 0.0 2.6
5 Germany 5.5 0.8 0.0 0.0 0.0 2.0
6 France 6.8 0.4 0.0 0.0 0.0 0.9
7 Australia 4.6 3.5 2.1 12.8 0.0 4.2
8 Bulgaria 10.1 26.5 4.7 2.1 10.7 9.1
9 United Kingdom 11.0 0.0 0.0 2.4 0.0 2.8
10 India 0.0 0.0 0.0 0.0 0.0 0.0
11 Russian Federation 0.0 0.0 0.0 0.0 0.0 0.0
12 Iran, Islamic Republic of . . . 4.0 0.0 2.3
13 Spain 0.0 0.0 0.0 0.0 0.0 0.0
14 Canada 2.4 0.0 0.0 0.0 14.7 7.1
15 Italy 0.0 0.0 0.0 0.0 0.0 0.0
16 Brazil 0.0 0.0 0.0 0.0 0.0 0.0
17 Poland 0.0 20.0 0.0 0.0 0.0 2.3
18 Egypt 0.0 0.0 0.0 0.0 0.0 0.0
19 Finland 0.0 0.0 0.0 0.0 0.0 0.0
20 Sweden 1.1 10.9 0.0 0.0 . 3.7
21 Romania 0.0 0.0 0.0 0.0 . 0.0
22 Korea, Republic of 0.0 0.0 0.0 0.0 0.0 0.0
23 Algeria 0.0 0.0 0.0 0.0 0.0 0.0
24 Czech Republic 20.0 0.0 0.0 0.0 0.0 0.9
25 Morocco . 0.0 0.0 0.0 0.0 0.0
26 Argentina 25.0 0.0 . . . 9.1
27 Austria 18.2 0.0 0.0 0.0 0.0 7.4
28 Chile . 0.0 0.0 0.0 0.0 0.0
29 New Zealand 0.0 . . . 0.0 0.0
30 Czechoslovakia 0.0 . . . . 0.0
31 Luxembourg . 0.0 0.0 0.0 . 0.0
32 South Africa . . 0.0 0.0 0.0 0.0
33 Switzerland 0.0 8.0 0.0 . . 2.7
34 Taiwan . 0.0 0.0 0.0 0.0 0.0
35 USSR 0.0 . . . . 0.0
36 Netherlands 0.0 0.0 0.0 0.0 . 0.0
37 Belgium 0.0 0.0 50.0 0.0 . 23.1
38 Croatia 0.0 10.0 . 0.0 . 3.3
39 Mexico 0.0 0.0 0.0 . 0.0 0.0
40 Ukraine . 0.0 . 0.0 0.0 0.0
41 Denmark 10.0 0.0 . 0.0 . 4.9
42 Norway . . 0.0 0.0 . 0.0
43 Greece . . 0.0 0.0 . 0.0
44 Indonesia . . 0.0 . . 0.0
45 Kuwait . 0.0 . . . 0.0
46 Republic of Serbia . . . . 0.0 0.0
47 Thailand . . . . 0.0 0.0
48 Turkey 0.0 . . . 0.0 0.0
49 United Arab Emirates 0.0 . . . . 0.0
50 Yugoslavia 0.0 0.0 . . . 0.0
51 Colombia . . . . 0.0 0.0
52 Fiji . . . . 0.0 0.0
53 Hungary . . . 0.0 . 0.0
54 Iraq . . 0.0 . . 0.0
55 Ireland . . . 0.0 . 0.0
56 Israel . . . . 50.0 50.0
57 Jordan 0.0 . . . . 0.0
58 Lithuania . 0.0 . . . 0.0
59 Malaysia . . . 0.0 . 0.0
60 Portugal . . . 0.0 . 0.0
61 Saudi Arabia . . . 0.0 . 0.0
62 Singapore . 0.0 . . . 0.0
63 Syrian Arab Republic . 0.0 . . . 0.0

Share of publications among 10% most cited in field, fractionalized (%)



Bar chart of publication_year

Field normalized citation rate (cf), fractionalized

Obs Country 1990-1994 1995-1999 2000-2004 2005-2009 2010-2014 All years
1 All countries 0.59 0.51 0.43 0.38 0.59 0.50
2 China 0.28 0.23 0.46 0.29 0.89 0.48
3 United States 0.70 0.63 0.45 0.58 0.63 0.59
4 Japan 0.59 0.38 0.40 0.24 0.22 0.39
5 Germany 0.83 0.63 0.35 0.32 0.26 0.55
6 France 0.93 0.58 0.34 0.29 0.30 0.50
7 Australia 0.71 0.70 0.37 1.18 0.83 0.70
8 Bulgaria 1.24 1.77 0.97 0.54 1.15 1.08
9 United Kingdom 0.68 0.45 0.33 0.44 0.64 0.47
10 India 0.34 0.13 0.40 0.16 0.58 0.29
11 Russian Federation 0.01 0.13 0.05 0.16 0.10 0.08
12 Iran, Islamic Republic of . . . 0.50 0.46 0.48
13 Spain 0.22 0.31 0.48 0.39 1.29 0.43
14 Canada 0.75 0.28 0.75 0.44 0.86 0.73
15 Italy 0.37 0.71 0.25 0.53 0.53 0.45
16 Brazil 0.19 0.34 0.24 0.35 0.21 0.26
17 Poland 0.28 1.37 0.62 0.26 0.29 0.48
18 Egypt 0.05 0.34 0.21 0.33 0.07 0.19
19 Finland 0.53 1.25 1.03 0.57 0.00 0.59
20 Sweden 0.58 0.95 0.76 0.98 . 0.71
21 Romania 0.19 0.00 0.00 0.00 . 0.06
22 Korea, Republic of 0.16 0.35 0.17 0.24 0.54 0.26
23 Algeria 0.22 0.58 0.19 0.34 0.15 0.33
24 Czech Republic 2.06 0.62 0.42 0.81 0.52 0.64
25 Morocco . 0.09 0.11 0.00 0.00 0.06
26 Argentina 1.59 0.35 . . . 0.80
27 Austria 0.88 0.31 0.36 0.08 0.14 0.48
28 Chile . 0.66 0.67 0.31 0.60 0.50
29 New Zealand 0.44 . . . 0.29 0.42
30 Czechoslovakia 0.24 . . . . 0.24
31 Luxembourg . 0.38 0.16 0.21 . 0.26
32 South Africa . . 0.28 0.26 0.07 0.19
33 Switzerland 0.99 0.95 0.34 . . 0.81
34 Taiwan . 0.33 0.44 0.04 0.66 0.34
35 USSR 0.24 . . . . 0.24
36 Netherlands 0.32 0.40 0.14 0.46 . 0.35
37 Belgium 0.08 0.64 2.33 0.17 . 1.25
38 Croatia 1.20 1.66 . 0.40 . 1.08
39 Mexico 0.56 0.16 0.31 . 1.08 0.53
40 Ukraine . 0.00 . 0.05 0.00 0.01
41 Denmark 1.23 0.31 . 1.06 . 0.78
42 Norway . . 0.53 0.04 . 0.39
43 Greece . . 0.32 1.06 . 0.35
44 Indonesia . . 0.06 . . 0.06
45 Kuwait . 0.00 . . . 0.00
46 Republic of Serbia . . . . 0.61 0.61
47 Thailand . . . . 0.34 0.34
48 Turkey 0.53 . . . 0.00 0.18
49 United Arab Emirates 0.00 . . . . 0.00
50 Yugoslavia 0.16 0.10 . . . 0.13
51 Colombia . . . . 0.00 0.00
52 Fiji . . . . 1.55 1.55
53 Hungary . . . 0.00 . 0.00
54 Iraq . . 0.00 . . 0.00
55 Ireland . . . 0.43 . 0.43
56 Israel . . . . 2.29 2.29
57 Jordan 0.16 . . . . 0.16
58 Lithuania . 0.00 . . . 0.00
59 Malaysia . . . 0.04 . 0.04
60 Portugal . . . 1.06 . 1.06
61 Saudi Arabia . . . 0.31 . 0.31
62 Singapore . 0.47 . . . 0.47
63 Syrian Arab Republic . 0.00 . . . 0.00

Field normalized citation rate (cf), fractionalized



Bar chart of publication_year