sir take up a science journal for one year and compare the research from jap, us and other...do it for one year. you will get you ans.
I am a scientist for 12 years and have been working in engineering research for 4 years - I have some idea of what i am talking about -
The SCImago Journal and Country Rank provides journal and country scientific indicators. As stated in previous posts, these types of rankings have limitations but they are also interesting. The table shows the top 6 countries by h-index and then some others I chose to list (the top 6 repeat from my post in 2008 – Country H-index Rank for Science Publications). The h-index provides a numeric indication of scientific production and significance (by looking at the citations given papers by other papers). Read more about the h-index (Hirsh index).
Country h-index h-index (2007) % of World
Population total Cites
USA 1,139 793 4.5% 87,296,701
United Kingdom 689 465 .9% 21,030,171
Germany 607 408 1.2% 17,576,464
France 554 376 1.0% 12,168,898
Canada 536 370 .5% 10,375,245
Japan 527 372 1.8% 14,341,252
Additional countries of interest
18) China 279 161 19.4% 5,614,294
21) South Korea 258 161 .7% 2,710,566
22) Brazil 239 148 2.8% 1,970,704
25) India 227 146 17.5% 2,590,791
31) Singapore 196 .01% 871,512
H-index Rank for Countries: for Science Publications » Curious Cat Science and Engineering Blog
Here is a little sample of Japanese papers from the latest issue of nature ...
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Nature | Letter
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Atom-resolved imaging of ordered defect superstructures at individual grain boundaries
Zhongchang Wang,
Mitsuhiro Saito,
Keith P. McKenna,
Lin Gu,
Susumu Tsukimoto,
Alexander L. Shluger
& Yuichi Ikuhara
Affiliations
Contributions
Corresponding author
Nature
479,
380–383
(17 November 2011)
doi:10.1038/nature10593
Received
30 June 2011
Accepted
21 September 2011
Published online
16 November 2011