简介:ThedetailedmicrostructuresofNi80Fe20/Fe50Mn50superlatticeshavebeencharacterizedusingbothx-raydiffractiontechniquesandtransmissionelectronmicroscopy.Theobrivouslayeredstructure,typicalcolumnstructureandtwinswhichexistinNi80Fe20/Fe50Mn50superlatticeswereobservedthroughperformingtransmissionmicroscopy.Bycombiningthetechniqueoflowanglex-rayreflectivity(specularandoff-specularscans)withtheanomalousscatteringeffectandhigh-anglex-raydiffraction(usingconventionalx-ray),wequantitativelyanalysedthemicrostructuralvariationasafunctionofannealingtemperature.Itisfoundthatthelateralcorrelationlength,the(111)peakintensityofthesuperlatticesandtheaveragemultilayercoherencelengthallincreasewithariseinannealingtemperatureannealingcandecreasetherootmean-squareroughnessattheinterfacesofNi80Fe20/Fe50Mn50superlattices.theobtainedmicrostructuralknowledgewillbehelpfulinunderstandingthemagneticpropertiesoftheni80Fe20/Fe50Mn50exchangebiassystem.
简介:Variousagriculturalcropresiduesincludingcornstover,corncob,andsorghumstalkwithamoisturecontentof75wt%weresubjectedtoalongpretreatment(12-60h)withsupercriticalCO2(scCO2),atlowtemperature(50-80℃)andapressureof17.5-25.0Mpa.Thesugaryieldsfromtheenzymatichydrolysis(EH)ofthepretreatedsampleswereasmuchasthree-tofourfoldgreaterthanthoseaffordedbytherawmaterials.However,whenpretreatmentwasconductedwithinashorttime(e.g.0.5h),aspreviouslyreportedintheliterature,onlyaslightincreaseintheEHsugaryieldswasobserved.TheproposedscCO2pretreatmentmechanismdemonstratedtheroleofmoistureinthesystem.Wetting,softening,andswellingwereobservedtomainlyaffectthelignocellulosewhenasuitableamountofwaterwasadded.Finally,thesampleswereanalysedbyX-raydiffractionandscanningelectronmicroscopy,beforeandafterpretreatment,toinvestigatethechangesinthemicroscopicstructureofthebiomass.
简介:ExperimentalMeasurementsofNeutronDistributionsin50MeV/u18O+Be,CuandAuReactions¥LiGuisheng;ZhangTianmei;LiZongweiandSuYouwu?..
简介:Intrinsicapoptosis,apossibleresponsetomitochondrialdamage,inMDA-MB-231cellsexposedtodifferentdosesofcarbonionswasinvestigatedinthisstudy.WeassessedBaxandBcl-2expressionandcytochromecreleaseinthemitochondriaandcytosolofcellsexposedtolow(0.5Gy)andhigh(3Gy)dosesofcarbonionsusingwesternblotanalysis.
简介:RecoilRangesofNear-targetProductsfrom50MeV/u18O+197Au¥YangYongfeng;ZhaoZhizheng;LiZongwei;ZhuShaofei;CatXicheng;Ya...
简介:ActivationMeasurementsofNeutronDoseEquivalentRatesin50MeV/u ̄(18)O-ionTargetArea¥LiGuisheng;ZhangTianmei;LiZongweiandSuYouwuNe...