<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: 四虎国产精品久久免费地址| 天堂a无码a无线孕交| 亚洲 欧美 变态 卡通 自拍| 日韩在线永久免费播放| 国产女人18毛片水真多1| 久热这里只有精品蜜臀av| 日本边添边摸边做边爱喷水| 婷婷色婷婷深深爱播五月| 国内精品免费久久久久电影院97| 久久caoporn国产免费| 久久久久国产精品熟女影院| 久久夜色国产噜噜亚洲av| 久久人妻无码一区二区| 久久www视频| 亚洲无线码一区在线观看| 亚洲一精品一区二区三区| 五月婷婷深开心五月天| 无码一区+中文字幕| 国产精品沙发午睡系列990531| 国产精品人成在线播放蜜臀| 高清无码爆乳潮喷在线观看| 欧美激情 亚洲 在线| 妇女自拍偷自拍亚洲精品| 五月开心六月丁香综合色啪| 精品一区二区三区在线播放视频| 在线国产综合一区二区三区| 精品亚洲精品日韩精品| 成人午夜免费一区二区三区| 欧美亚洲国产日韩电影在线| 国精产品999国精产品视频| 九九综合va免费看| 亚洲美免无码中文字幕在线| 欧美高清精品一区二区| 久久国产热精品波多野结衣av| 成人a免费α片在线视频网站| 亚洲精品久荜中文字幕 | 亚洲爆乳WWW无码专区| 日韩av片无码一区二区三区不卡| 国产线播放免费人成视频播放| 人妻av无码专区久久| 日本一区二区不卡精品|