<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区

          Government and Policy

          China poised to top US in science by 2013

          (chinadaily.com.cn)
          Updated: 2011-03-29 18:02
          Large Medium Small

          China may surpass the United States as the global leader in scientific output by as early as 2013, thanks to huge investments in research and development (R&D) and education, says a new study conducted by the Royal Society, the UK's national science academy.

          Related: China set to be top economy by 2030

          Analysis of published research indicates that Chinese science has made rapid strides in recent years going by the number of papers published in the recognized international journals listed by the Scopus service of publishers Elsevier.

          In 1996, the US published 292,513 papers - more than 10 times China's 25,474. By 2008, the US total had increased slightly to 316,317 while China reported a more than seven-fold increase to 184,080, says the BBC.

          The US still leads the world, but its share of global authorship has fallen to 21 percent from 26 percent, the Royal Society found after analyzing the share of the world's authorship of scientific research papers between the periods 1993-2003 and 2004-2008.

          During the same period, the share of China rose to 10.2 percent from 4.4 percent, and its ranking improved from sixth to second place. Britain has remained relatively stable and is currently ranked third.

          Earlier estimates had indicated that China might surpass the US sometime after 2020. But the Royal Society has now made a bolder forecast in its study entitled Knowledge, Networks and Nations.

          "A simple linear interpretation of Elsevier's publishing data suggests that this could take place as early as 2013," it says.

          "China has heavily increased its investment in R&D, with spending growing by 20% per year since 1999 to reach over US$100 billion a year today (or 1.44% of GDP in 2007), in pursuit of its goal of spending 2.5% of GDP on R&D in 2020."

          China is also turning out huge numbers of science and engineering graduates, with nearly 1.5 million leaving its universities in 2006, said the study.

          However, the surge in the volume of research publications does not necessarily mean an increase in quality, which is often evaluated by citations, the report pointed out.

          Although China has risen in the "citation" rankings, its performance on this measure lags behind its investment and publication rate, said the study.

          "It will take some time for the absolute output of emerging nations to challenge the rate at which this research is referenced by the international scientific community."

          主站蜘蛛池模板: 亚洲天堂男人天堂女人天堂| 久久精品亚洲国产综合色| 欧美黑人性暴力猛交在线视频| 亚洲日韩中文无码久久| 日韩av日韩av在线| 国产一级小视频| 国产无套内射又大又猛又粗又爽| 精品亚洲国产成人av| 一区二区三区av天堂| 国产鲁鲁视频在线观看| 人妻人人做人碰人人添| 中文字幕av国产精品| 亚洲天堂一区二区久久| 日韩人妻不卡一区二区三区| 久热这里只有精品视频3| 乱人伦人妻中文字幕无码久久网 | 亚洲的天堂在线中文字幕| 男人av无码天堂| 精品久久综合日本久久网| 日本视频一两二两三区| 亚洲丶国产丶欧美一区二区三区| 精品无码久久久久成人漫画| 人人看人人鲁狠狠高清| 最新亚洲人成网站在线影院| 国产成人亚洲精品无码青APP| 国产99青青成人A在线| 色吊丝av中文字幕| 青草成人精品视频在线看| free性国产高清videos| 国产精品无遮挡一区二区| 成全我在线观看免费第二季| 高潮喷水抽搐无码免费| 国产欧美在线观看一区| av天堂午夜精品一区| 日本免费人成视频在线观看| 18av千部影片| 国内精品视频一区二区三区八戒| 亚洲黄色性视频| 日韩卡1卡2卡三卡免费网站| 久久精品国产亚洲av麻豆甜| 亚洲中文字幕无码一区无广告|