2002年国际学术期刊的影响因子

老庄

nature and science?

老庄

<!--QuoteBegin--></span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td><b>QUOTE</b> </td></tr><tr><td id='QUOTE'><!--QuoteEBegin-->For the Physical Review series, the impact factor keeps almost unchanged. Six years ago the impact factors are 2.88 and 6.1 for Physical Review B and Physical Review Letters, respectively. Around eight years ago Physical Review B had a higher impact factor than that of Applied Physics Letters. This is not any more true.<!--QuoteEnd--></td></tr></table><span class='postcolor'><!--QuoteEEnd--> <br><br>it indicates that more people make application research than before.<br><br><br>