简介：一个表面波浪激动的血浆列能充当一条血浆天线。实验被执行学习电流和传导性如此的一条血浆天线的分布，领域，功率模式，择向性和效率。另外，一条相等的金属性的铜天线被建立，它的天线参数与血浆天线的相比。我们的调查结果显示在血浆天线的泛音的力量内容是与铜天线相比同样突出的更多(它仅仅产生基本频率)。然而，为两条天线的力量模式是相当类似的。在血浆天线的领域里关于泛音的产生提供更质的理解，双性人光谱的分析被执行在当前的变化学习非线性的相互作用。血浆天线的一些特定的特征在我们的学习被调查，它可以关于常规金属性的天线提高血浆天线的申请前景。

简介：AmethodofcurrentdrivewithIonCyclotronRangeofFrequency(ICRF)onEx-perimentalAdvancedSuperconductingTokomak(EAST)isdescribed.Avarietyofliquidsiliconoilheightsinthephaseshifterwillbringthephasedifferencetothecurrentdrive.Itisfoundthatthecurrentdrivecanbeachievedbyusingthephaseshifter.Theliquidphaseshifterisoneoftheimpedancematchingsystemstoo.

简介：

简介：Inthisstudy,micro-hollowcathodedischarge(MHCD)isinvestigatedbyafluidmodelwithdrift-diffusionapproximation.TheMHCdeviceisacathode/dielectric/anodesandwichstructurewithoneholeofadiameterD=200μm.ThegasisaNe/Xemixtureatapressurep=50～500Torr.Theevolutionsofthedischargeshowthattherearetwodifferentdischargemodes.AtlargerpDthedischargeplasmaandhighdensityexcitedspeciesexpandalongthecathodesurfaceand,aringeddischargemodeisformed.AtsmallerpD,thedischargeplasmaandtheexcitedspeciesexpandalongtheaxisofthecathodeaperturetoformacolumnardischarge.

简介：

简介：Threetypesofplasmaionsourcesdesigned,manufacturedandoptimizedintheAcceleratorsandIonSourcesDepartment,NuclearResearchCenter,AtomicEnergyAuthorityareintroduced.Differentmeanswereinvestigatedtogeneratethedischargecurrentandionbeamcurrentextractedfromtheplasma.ThevariousplasmasdescribedincludeaDCglowdischargeplasma,anarcdischargeplasmaandaradiofrequencydischargeplasma.

简介：Nuclearbindingenergies,chargeradiiandthechargedistributionsofeven-eventin(Sn)isotopesarecalculatedusingrelativisticmeanfieldtheory,andthetheoreticalresultsarefoundtobeinaccordancewiththeexperimentaldata.ThenuclearchargeformfactorsforSnisotopesarecalculatedusingthephase-shiftanalysismethod.ItisshownthattheminimaofthechargeformfactorsshiftupwardandinwardwithanincreaseintheneutronnumberoftheSnisotopes.

简介：ThepaperpresentssomepreliminaryresultsofPSSperformancesmeasuredbyusingvariousexcitingsources.Theenergyresolutionof25eVforMnKαandof-15eVforTiKαisobtained.respectively,forvariousexcitingsources,thesatellitestructureofSiKαhasbeenclearlyobserved.ThepeakofCrKβandofMnKαinastainlesssteelsamplehasalsobeenresolvedandthedetectableamountofTihasbeenlessthan10^-9g.ThecomparisonsoftheseresultsattempttofindmoresuitableexcitingsourceforadifferentapplicationofPSSandtodiscussthepossibilityofapplicationcarriedoutbyPSScombinedwithanewμ-X-rayexcitingsource.

简介：ThestructuresofPb(ZrxTi1-x)O3/YBCOheterostructurewithdifferentthicknessofPZTsublayerwereinvestigated.Thelatticeparameter,cofYBCOlayerisobtainedtobec=11.686±0.001A.beingof0.2%largerthanthatofthebulkone.Thelatticeparameter,cofPZTlayerisc=4.116±0.001A,indicatingthatthecompositionofthesampleisPb(Zr0.48Ti0.52)O3.ThemisorientationsofYBCO/PZTsublayerswereobservedinthesamplesBandD.TheeffectofthecrystallinequalityoftheSTOsubstrateothequalityoftheYBCOandPZTepitaxialfllmswasdiscussed.

简介：ThepumpedsystemoftheXeC1excimerlaserhasbeendesignedandappliedtoanalyzeUVXeCllaserspectroscopycharacteristics.UndertheproportionofmixedgasofHCl:Xe:He=0.1%:1%:98.9%,excimerlaserlightwasgeneratedbystableglowdischargeprocess.Thelaserspectrum,pulseduration,andlaserpowerpropertieswereobtained.TheresultshowsthatthisXeClexcimerlaserexhibitsuniquespectralproperties,withtwopeaksbetween307.7nmand308.5nmathighpressurewithapumpedpowerof1.3959MW/cm~3.ThetransitionreliesonthestrongesttransitionsbetweenB-XandC-X.Themaximum-intensitytransitionofspectroscopyisBtoXenergylevels.Thelaserparametersareasfollows:minimaldurationof15.42ns,arepetitionratefrom0.5Hzto5Hz,singlepulsestablepowerof400mJ,andbeamdivergenceangleof3mrad.ThelasercanbeusedtostudyUVspectroscopy,laserablationsamplingandsputteredpinnateform.

简介：Moleculardynamics(MD)simulationswereperformedtoinvestigateF+continuouslybombardingSiCsurfaceswithenergiesof100eVatdifferentincidentanglesat300K.Thesimulatedresultsshowthatthesteady-stateuptakeofFatomsincreaseswithincreasingincidentangle.Withthesteady-stateetchingestablished,aSi-C-Freactivelayerisformed.ItisfoundthattheetchingyieldofSiisgreaterthanthatofC.IntheF-containingreactionlayer,theSiFspeciesisdominantwithincidentangleslessthan30o.Forallincidentangles,theCFspeciesisdominantoverCF2andCF3.

简介：Inthispaper,thefollowingcontentsincludingtheoriginalreceptorEI213andothertwocontrolmaterials,RAPDpolymorphism,photosyntheticefficiency,andthenumberofvascularbundlesofthefirstinternodesbelowthepedunclehavebeenstudiedfortheeightF7transgeniclinesobtainedfromionbeamimplantation.Theresultsshowedthattherewasasignificantvariationingenomesofmaize-riceline,comparedwiththereceptorEI213,afterthetotalexogenousmaizeDNAwasintroducedintoEI213.Thenumberofthevascularbundlesofmaize-riceprogeny'slineswasobviouslymuchlargerthanthoseoftheoriginalreceptorEI213andothertwocontrolsGER-3andMH63,andalongwiththephotosyntheticefficiencyofmaize-riceprogeny'slinesbeinggoneup.Moreover,theparenchymacellsaroundthevascularbundlesofthetransgeniclinesbecamemuchlargerinnumberandinsizethanthosearoundthecontrols.Alltheseindicatedthatthemaize-riceprogeny'slinesarereallydifferentfromandsuperiortothereceptorandthecontrols.ItisanovelandusefulwaytoapplyionbeamimplantationintransferringDNAfromC4plantmaizeintoC3plantrice.

简介：Moleculardynamicssimulationswereperformedtostudytheinteractionbetweenatomichydrogenandsiliconcarbide.Inthepresentstudy,wefocusontheeffectofthesurfacetemperatureonHinteractingwithsiliconcarbide.ThesimulationresultsshowthattheretentionofHatomsinthesampledecreaseslinearlywithincreasingsurfacetemperature.ThedepthprofileanalysisshowsthatthesampleismodifiedbyHbombardment,andthedensityofHatomsisgreaterthanthoseofSiandCatomsneartheinterfaceregionbetweentheH-containingregionandthebulk.However,nearthesurfaceregionthedensitiesofH,SiandCatomsarealmostequivalent.Inthemodifiedlayer,thebondsconsistofSi-CandSi-HandC-H.ThefractionofSi-Cbondsisthegreatest.OnlyafewC-Hbondsarepresent.

简介：

简介：

简介：Geepilayersofdifferentthicknessesaregrownbymolecular-beamepitaxywithSbasasurfactantonSI(100)substrates,X-raydiffractionillustratesthattheseGethinfilmsarepartiallystrained.andthestrainsdecreasegraduallywithincreasingepilayerthickness,RamanspectrarevealadownwardshiftoftheGe-Gemodepeakastheepilayerthicknessincreases.Intheregionsofhighstrain,therelationshipbetweentheRamanshiftofthismodeandthestraininthepartiallyrelaxedsamplesisconsiderablydifferentfromthelinearrelationshipreportedbefore,whichismainlyattributedtothespatialconfinementeffectofphononsinananocrystal.

简介：Organicgermaniumcompoundshavebeenextensivelyappliedinmedicineastonics,Inthispaper,thelocalstructuresoftwoorganicgermaniumcompounds,carboxyethylgermaniumsesquioxideandpolymericgermaniumglutamate,weredeterminedbyEXAFS.Thestructureparametersincludingcoordinationnumbersandbondlengthswerereported,andpossiblestructurepatternswerediscussed.

简介：TheexperimentalapparatusofX-rayfluorescence(XRF)microprobeanalysisatBeijingSynchrotronRadiationFacility(BSRF)isdescribedUsingthebovineliverasthestandardreference.theminimumdetectionlimit(MDL)oftraceelementwasmeasuredtodeterminethecapabilityofbiologicalsampleanalysisbysynchrotronradiationXRFmicroprobe.TherelativechangeofthecontentofthemajorortraceelementinthenormalandtumorpartofhumanbonetissueslicewasinvestigatedTheexperimentalresultrelationtotheclinicalmedicinewasalsodiscussed.

简介：AnexperimentwasperformedontheShenguangIIIprototypelaserfacilitytocontinuethestudyonhohlraumradiationsourcewithapproximatelyconstantradiationtemperatureusingacontinuouslyshapedlaserpulse.Aradiationsourcewithaflattoptemperatureofabout130eVthatlastedabout5nswasobtained.Thepreviousanalyticaliterationmethodbasedonpowerbalanceandself-similarsolutionofablationwasmodifiedtakingintoaccounttheplasmamovementsanditwasusedtodesignthelaserpulseshapeforexperiment.Acomparisonbetweenexperimentalresultsandsimulationispresentedandbetteragreementwasachievedusingthemodifiedmethod.Furtherimprovementsarediscussed.

简介：Extendedx-ray-absorptionfine-structuremeasurements(EXAFS)wereperformedonnanocrystalline(nc)elementalSesampleswithgrainsizesrangingfrom13to60nm.Accompaniedwiththepreviousstudy,weconcludedthat,withtherefinementinnc.Se.theintrachainstructure(thebondlength,thecoordinationnumber)isunchangedwhiletheinterchainspacingisenlarged.ThegrainboundaryinthencSeisfoundtobeinalow-energyconfigurationthatisdifferentfromthedisorderedgaslikegrainboundarystructure.