简介:Source:MITTechnologyntroductionNotallbreakthroughsarecreatedequal.Somearrivemoreorlessasusablethings;othersmainlysetthestageforinnovationsthatemergelater,andwehavetoestimatewhenthatwillbe.Butwe’dbetthateveryoneofthemilestonesonthislistwillbeworthfollowinginthecomingyears.1.MagicLeap
简介:2015TopTenRareEarthScienceandTechnologyNewshasbeenrevealedbyChinaRareEarthInformationCenter,NationalInformationNetworkandthemediaof'RareEarthInformation','ChineseRareEarths','ChinaRareEarthInformation'andChinaRareEarthNet.Thetoptenrareearthscienceandtechnologynewsareselectedfrommorethan100rareearthscienceandtechnologynewsreportedbythe
简介:6."Developmentofhigh-performancerareearthluminescentmaterialforwhiteLED"projectbyFujianInstituteofResearchontheStructureofMatter(FJIRSM)passedtheacceptance"Developmentofhigh-performancerareearthluminescentmaterialforwhiteLED",akeyspecificS&TsubjectinFujianprovince,ledbyFujianInstituteofResearchontheStructureofMatter(FJIRSM)passedtheexpertsacceptanceonJanuary29,2015.
简介:<正>莫高窟现在存洞492个,在位置分布上,各时代洞窟有相对集中的明显趋势。最早的一组北凉窟(第268窟、272、275窟)聚集在崖面中段,踞现今地表约十几米。(据考古材料证明,时代越早的,居地面越低。)这组窟视野开阔,阳光充足,是崖面的“黄金区域。”以后的北魏、西魏窟基本上是紧挨这组窟向南、北横向发展。北周、隋、唐时代也大至按此规律开凿洞窟。五代以后的洞窟主要集中于崖面下层及南、北两头。此外,由于崖面有限,有部分窟是“见缝插针”。因此,各时代洞窟交错分布,按时代编号检索不便,所以,各种编号皆按现存各窟分布位置,南北、上下方向为序编号。