简介:FK01isanewstrainofoil-sunflowerwithcytoplasmicmalesterilelineHAasfemaleparentandcytoplasmicmalesterilerestorerline19540asmaleparent.19540isamutantirradiatedbycarbonionwhichseedoilcontentincreases.FK01joined2014Gansuprovinceregionaltestofoil-sunflowerandplantedinsixsites:Jingyuanagriculturaltechniquespreadingcenter,Minqinagriculturaltechniquespreadingcenter,Jingtaiagriculturaltechniquespreadingcenter,Jiuquanagriculturalsciencesresearchinstitute,Tianshuiagriculturalsciencesresearchinstitute,andHuanxianseedcontrolstation.
简介:2014年3月1日发生在昆明火车站的砍人事件是由暴力恐怖犯罪分子一手策划组织的严重暴力恐怖事件。由于此次事件涉案人员涉及边疆少数民族,因此在新闻报道上更需敏感和谨慎。公安机关在处理突发事件中的能力和水平常常影响事件处置的成效,警方(察)往往成为媒体中的"弱势群体",网络舆论更容易在涉警事件中走向极端和激烈。而昆明"3·01"事件中官方的回应和积极行动走在了媒体前,故赢得了民众的声援和支持,使得网络上积极态度大于负面情绪。此事件中的涉警舆情报道值得各级各地公安机关借鉴。
简介:Asanimportantmulti-functionalmaterialappliedinsurfaceacousticwavedevices,opticalcommunications,laserandoptoelectronicsduetoitsgoodphotoelectricandpiezoelectricproperties,lithiumtantalate(LiTaO3)hasdrawnextensiveinterests[1].NumerousphysicalpropertiesofLiTaO3,suchasacoustical,electronicstructures,opticalpropertiesandeffectivemass,thermodynamicproperties,havebeenreportedinseveralpapers.Pointdefectswillaffecttheelectronicstructurewhichshouldberesponsibleformanyphysicalproperties,especiallyopticalproperties.
简介:Eu3+activatedSr1–xEuxZrO3(x=0.01–0.04)phosphorwithperovskitestructurewassuccessfullysynthesizedbyusingcombustionmethod.Thestructure,morphologyandopticalpropertiesofthematerialwerecharacterizedbyX-raydiffraction,scanningelectronmicroscopyandfluorescencespectrometry.TheXRDresultsindicatedthatcrystalsofSrZrO3:Eu3+belongstotetragonalperovskitesystem.ThephosphorcouldbeeffectivelyexcitedbyUVlightandtheemissionspectraresultsindicatedthatreddish-orangeluminescenceofSrZrO3:Eu3+duetomagneticdipoletransition5D0→7F1at593nmwasdominant.Thus,thepreparedphosphorshowedremarkableluminescentpropertieswhichfindapplicationsinfieldemissiondisplay(FED)andplasmadisplaypanel(PDP)devices.
简介:本书为研究古代散曲学的开山之作,任中敏先生精心搜集了元明以来的散曲选本凡12种,其中元人选本2种:杨朝英《阳春白雪》、胡存善《乐府群玉》;元人专集4种:马致远《东篱乐府》,乔吉《梦符散曲》,张可久《小山乐府》,贯云石、徐再思《酸甜乐府》;明人专集5种:康海《游东乐府》、王磐《王西楼先生乐府》、冯惟敏《海浮山堂词稿》、沈仕《唾窗绒》、施绍莘《花影集》;清人总集1种:朱彝尊等《清人散曲选刊》;另有任氏自撰曲学著作3种:《作词十法疏证》、《散曲概论》、《曲谐》。这些著作多从元明以来的别集、曲选、笔记中搜集而来,广罗众本,校其异同,辑佚辨伪,有散曲集大成之性质。原书为仿宋版,无标点。本次整理,采用横排版式,加以新式标点。并对原文字句作了校勘,以“今校”的形式补其初版讹误与未备。
简介:Enhanced2.7μmemissionisobtainedinEr3+/Tm3+andEr3+/Ho3+codopedZBYAglasses.Absorptionandemissionspectraaretestedtocharacterizethe2.7μmemissionpropertiesofEr3+/Tm3+andEr3+/Ho3+dopedZBYAglassesandareasonableenergytransfermechanismof2.7μmemissionbetweenEr3+andTm3+Ho3+)ionisproposed.CodopingofTm3+orHo3+significantlyreducesthelifetimeoftheEr3+:4I13/2levelduetotheenergytransferofEr3+:4I13/2→Tm3+:3F4orEr3+:4I13/2→Ho3+:5I7.Thus,the2.7μmemissionisstrengthenedandthe1.5μmemissionisdecreasedaccordinglyespeciallyintheEr3+/Tm3+sample.TheupconversioneffectsbetweentheEr3+/Tm3+andEr3+/Ho3+dopedZBYAglassesaredifferentattributetothedifferentenergytransferefficiencies.Bothofthetwocodopedsamplespossessnearlyequallargeemissioncrosssection(16.6×10-21cm-2)around2.7μm.TheresultsindicatethatthisEr3+/Tm3+orEr3+/Ho3+dopedZBYAglasshaspotentialapplicationsin2.7μmlaser.