简介:InthispaperweusedMOF-5andCu3(BTC)2toseparateCO2/CH4andCH4/N2mixturesunderdynamicconditions.Bothmaterialsweresynthesizedandpelletized,thusallowingforameaningfulcharacterizationinviewofprocessscale-up.ThematerialswerecharacterizedbyX-raydiffraction(XRD)andscanningelectronmicroscopy(SEM).Byperformingbreakthroughexperiments,wefoundthatCu3(BTC)2separatedCO2/CH4slightlybetterthanMOF-5.BecausethecrystalstructureofCu3(BTC)2includesunsaturatedaccessiblemetalsitesformedviadehydration,itpredominantlyinteractedwithCO2moleculesandmoreeasilycapturedthem.Conversely,MOF-5withasuitableporesizeseparatedCH4/N2moreefficientlyinourbreakthroughtest.
简介:Inthisreport,wepresentasimulatedresultontheion-massindependenceoftheguidedtransmission,whichisinagreementwiththepreviousexperimentalresults[1].Inordertosearchtheinuenceoftheionmassonguidedtransmission,variousspeciesofionsusedasprojectilesinsimulations.Fig.1showsthetransmissionfractionsforNe7+,Ar7+,Kr7+,andXe7+ions.Thesedatawereacquiredfortiltangleof2inenergyof7keV.Itisseenthatallofionfractionsgraduallyrisesafteratimedelay,andnallyreachstable.
简介:Morelocalizedenergydepositionisabletobeproducedinantiproton-nucleuscollisionsincomparisonwithheavy-ioncollisionsduetoannihilationreactions.Searchingforthecoldquark-gluonplasma(QGP)withantiprotonbeamshasbeenconsideredasahottopicbothinexperimentsandinthereticalcalculationsoverthepastseveraldecades.Strangenessproductionandhypernucleusformationinantiproton-inducednuclearreactionsareimportanceinexploringthehyperon(antihyperon)-nucleon(HN)potentialandtheantinucleon-nucleoninteraction,whichhavebeenhottopicsintheforthcomingexperimentsatPANDAinGermany.
简介:摘要义东油田大81-4块复杂断块油田,以稳产、上产、经济效益为中心,以强化工况管理为主线,不断提高油井技术管理水平,努力实现油田高效长寿开发,为完成全年的生产经营指标奠定了坚实的基础。
简介:TheNaYF4:Yb,Ernanocrystalsweresynthesizedviathethermaldecompositionofmetaloleateprecursors.Thenanocrystalsinhexagonalstructurewerehighlyuniformandinsizeof25nm.Thebrightupconversionluminescencewasobservedundertheexcitationof980nmlaserandtheupconversionemissionspectrawereinvestigatedatdifferentpumppowers.Theemissionintensityratioofredlighttogreenlightlinearlyincreasedwithpumppowerincreasing.ThisresultindicatedthatthereexistedalargethresholdpowerofsaturationpumpforthefirstexcitationstateinNaYF4:Yb,Ernanocrystalscomparingtothatinbulkmaterial.
简介:<正>由印度聚氨酯协会主办的PUTECH展会上月在印度大诺伊达地区的印度展览中心圆满落幕。PUTECH是该区域关于聚氨酯及相关技术的最大型的盛会,2014年的主题是可持续发展和创新应用。众所周知,印度是十分重要的新兴市场,目前的年均增长率达20%,预计这个数据每五年会翻一番,到2018年印度很有可能会成为亚洲地区第二大聚氨酯市场。印度聚氨酯协会主席MukeshBhuta先生在开幕式上说:"现在PUTECH已经发展成一项国际盛事,在过去的几年里,虽然印度聚氨酯市场一直持续发展,但是还远远达不到中国的规模。但是对于印度市场的潜能和发展我是
简介:BlackmagicDesign发布消息,著名导演尔冬升为其制作团队购置了BlackmagicProductionCamera4K摄影机,用于影片《我是路人甲》的拍摄。