简介：LECR4isthefirstECRionsourceusingevaporativecoolingtechnologyintheworld.Itsuniquefeatureisthatthesolenoidsweremadefromsolidsquarecopperwires(3.32mm×5.77mmwithinsulation),andthatallthecoilsareentirelyimmersedintheroomtemperaturecoolant.Thecoilscanproduceamaximumaxialmagneticfieldupto2.5T.LECR4aimstoprovideintensemultiplechargestateionbeamsforSSC-Linacproject-anewLinearinjectorfortheSeparatedSectorCyclotron(SSC).Presently,someionbeamswithdifferentM/QratiohavebeenacceleratedsuccessfullywiththeRFQandDTL,suchas200eμAof16O^5+,200eμAof40Ar^8+,50eμAof209Bi^30+etc.ThemeasuredtransmissionefficiencyofRFQisupto90%.ThelayoutofLECR4ionsourceandtheLEBTisshowninFig.1.

简介：Inthispaper,weintroducethereducedmatrixinkqrepresentationandprovidethereducedmatrixelementsofaprojectionoperatorPontherationalnoncommutativeorbifoldT2/Z4.wegivetheclosedformfortheprojectorbyJacobiellipticalfunctions.Sinceprojectorscorrespondtosolitonsolutionsofthefieldtheoryonthenoncommutativeorbifold,wethuspresentacorrespondingsolitonsolution.

简介：与飘移散开(DD)的联合使用模型，试验性的测量参数和小信号的正弦曲线不变的分析，我们为4H-SiC提取Y参数埋葬隧道的金属氧化物半导体域效果晶体管(BCMOSFET)。输出电线走火水流获得G，梅森的不变的U分别地在普通来源的配置f(T)和摆动f(最大)的最大的频率为外推的统一水流获得频率被计算。这里f(T)=800MHz和f(最大)=5GHz为4H-SiCBCMOSFET被提取，当地效果活动性到达它的山峰时，珍视87cm(2)/Vs什么时候V-GS=4.5V。模拟结果清楚地证明4H-SiCBCMOSFET和地效果活动性的典型频率是优异的，由于新奇结构，与常规MOSFET相比。

简介：MoleculardynamicssimulationsareperformedtostudythegrowthmechanismofCH4-CO2mixedhydrateinxCO2=75%,xCO2=50%,andxCO2=25%systemsatT=250K,255Kand260K,respectively.OursimulationresultsshowthatthegrowthrateofCH4-CO2mixedhydrateincreasesastheCO2concentrationintheinitialsolutionphaseincreasesandthetemperaturedecreases.Viahydrateformation,thecompositionofCO2inhydratephaseishigherthanthatininitialsolutionphaseandtheencagingcapacityofCO2inhydratesincreaseswiththedecreaseintemperature.ByanalysisofthecageoccupancyratioofCH4moleculesandCO2moleculesinlargecagestosmallcages,wefindthatCO2moleculesarepreferablyencagedintothelargecagesofthehydratecrystalascomparedwithCH4molecules.Interestingly,CH4moleculesandCO2moleculesfrequentlyreplacewitheachotherinsomeparticularcagesitesadjacenttohydrate/solutioninterfaceduringthecrystalgrowthprocess.Thesetwospeciesofguestmoleculeseventuallyacttostabilizethenewlyformedhydrates,withCO2moleculesoccupyinglargecagesandCH4moleculesoccupyingsmallcagesinhydrate.

简介：ThesplittingofpotentialenergylevelsforgroundstateX2ΠgofOx2(x=+1,1)underspin–orbitcoupling(SOC)hasbeencalculatedbyusingthespin–orbit(SO)multi-configurationquasi-degenerateperturbationtheory(SO-MCQDPT).TheirMurrell–Sorbie(M–S)potentialfunctionsaregained,andthenthespectroscopicconstantsforelectronicstates2Π1/2and2Π3/2arederivedfromtheM–Sfunction.TheverticalexcitationenergiesforOx2(x=+1,1)areν[O+12(2Π3/2→X2Π1/2)]=195.652cm1,andν[O12(2Π1/2→X2Π3/2)]=182.568cm1,respectively.Allthespectroscopicdataforelectronicstates2Π1/2and2Π3/2aregivenforthefirsttime.

简介：

简介：YBa2Cu3Ox(YBCO)thinfilmsgrownondifferentsubstrateswithand/orwithoutEu2CuO4(ECO)bufferlayerwereinvestigatedbyX-raywideanglediffraction,reflection,diffusescatteringandtopography.TheresultsshowthatfortheyttriastabilizedZrO2(YSZ)substrate,thepresenceofanECObufferlayerimprovesthecrystallinequalityoftheYBCOfilm,whileanegativeeffectisobservedfortheSrTiO3(STO)substrate.ThelateralcorrelationlengthforasamplegrownonaYSZsubstratewithECObufferLayerismuchgreaterthangrownonanSTOsubetrate.TheSTOsubstrateusedhasmosaicstructure.2001ElsevierScienceB.V.Allrightsreserved.

简介：AmassofGaNnanowireshasbeensuccessfullysynthesizedonSi(111)substratesbymagnetronsputteringthroughammoniatingGa2O3/Cofilmsat950C.X-raydiffraction,scanningelectronmicroscopy,highresolutiontransmissionelectronmicroscopeandFouriertransformedinfraredspectraareusedtocharacterizethesamples.Theresultsdemonstratethatthenanowiresareofsingle-crystalGaNwithahexagonalwurtzitestructureandpossessrelativelysmoothsurfaces.ThegrowthmechanismofGaNnanowiresisalsodiscussed.更多还原

简介：氧化物PbMn(SO4)的磁性2由通过SO4tetrahedra与对方一起连接了的MnO6octahedra组成了，很好在实验被学习。在这篇论文，我们探索了它的有趣电子并且有第一原则的计算的磁性。也就是，我们Mn离子高有的所有旋转的结果表演说S=5/2，并且在NN和NNN之间的磁性的couplings是antiferromagnetic，它与试验性的结果同意很好。而且，吃惊在NN和NNN之间的相互作用最优地与扩大H被解释的旋转交换结果

简介：ThefutureGSIOnline-Offline-Object-OrientedanalysisframeworkGo4basedonROOT[CERN,R.Brunetal]providesamechanismtomonitorandcontrolananaluysisatanytime.ThisisachievedbyrunningtheGUIandtheanalysisindifferenttasks.Tocontrolthesetasksbyonenon-lbockingGUI,theGo4TaskHandlerpackagewasdeveloped.Itoffersanasynchronousintertaskcommunicationviaindependentchannelsforcommands,data,andstatusinformation,Eachchannelisprocessedbyadedicatedthreadandhasabufferqueueasinterfacetotheworkingthread.ThethreadsarecontrolledbytheGo4ThreadMAanagerpackage,basedontheROOTTThreadpackage,InparalleltotheGUIactions,theanalysistaskscandisplayobjectslikehistogramsintheGUI.AtestGUIwasimplementedusingtheQtwidgetlibrary(TrolltechInc.).AQttoROOTinterfacehasbeendeveloped.TheGo4packagesmaybeutilizedforanyROOTapplicationthatrequirestocontrolindependentdataprocessingormonitoringtasksfromanon-blockingGUI.

简介：

简介：

简介：

简介：

简介：Highenergyprotonbeamhasthelongpenetrationlengthinsolidmatteranditcouldproducetheradiographsandindicatethetomographyandmaterialpropertiesinsideofthespecimen.Consideringtheexpensivecoststoconstructahighenergyprotonaccelerator,theothercandidateofhighenergyelectronbeambecomesmoreacceptable[1??3].Duetothehighspatialandtemperalresolutionofhighenergyelectronbeam.Itisapowertooltodiagnosetheinnerstructurechangeduringthehighenergydensitymatterproductionandtheinertialconfinementfusionprocess.Inordertostudythedensityresolutionofthehighenergyelectronbeamradiography,astep-targetwasdesignedandproduced.ThestructureandthetargetpicturesareshowninFig.1andtheSitargetswithdifferentslot-widthwereproducedbyusingthemicroetchtechnics.

简介：在这份报纸，为在管的超声的内部流动的调查的马赫4超声的风隧道的轮廓第一被描述。第二，2和马赫4伪吃惊在方形的管挥动的马赫的地点，结构和特征被颜色schlieren相片和管墙压力调查变化大小。最后，墙砍有马赫4伪吃惊的方形的管的墙挥动的方面，顶和底部上的压力分布是由shear的调查品质上压力敏感的液体水晶可视化方法。在第一震动下面的方面墙边界层分离区域在最高的墙附近是狭窄的，当在第一震动下面的方面墙边界层分离区域在底部墙附近是很宽的时。关键词超声的内部流动-伪吃惊波浪-流动可视化-砍压力敏感的液体水晶CLC数字O357.4+2

简介：Wehavedesignedandrealizedanathermal4-channelwavelength（de-）multiplexerinsiliconnitride（SIN）.Minimizedthermalsensitivityisachievedinawidewavelengthrangebyusingwideandnarrowwaveguideswithlowanddifferentthermal-opticcoefficientsinthetwoarmsofMach-Zehnderinterferometers（MZIs）.TheSiNcorelayerandSiO2claddinglayersaredepositedbyalow-temperatureplasma-enhancedchemicalvapordep-ositionprocess.ThefabricatedMZIfilterexhibitsathermalsensitivitywithin4-2.0pm/℃inawavelengthrangeof55nmtonear1300nm.Then,anathermal（de-）multiplexerbasedoncascadedMZIshasbeendemonstratedwithacrosstalk〈-22dBandathermalsensitivity〈4.8pm/℃forallfourchannels,reducedby77%comparedtoaconventionalSiN（de-）multiplexer.OwingtothepassiveoperationandcompatibilitywiththeCMOSback-endprocess,ourdeviceshavepotentialapplicationsin3Dintegrationofphotonicsandelectronics.

简介：TemperatureisoneofthekeythermodynamicparametersofHEDmatter.Asapopulartechnique,thepyrometerofnarrow-bandlterstogetherwithphotodiodes(namelymulti-channelpyrometer)hasbeenapplied.However,thepyrometercanonlymeasureone-positiontemperatureinsingleshot[1;2].Actually,itisveryimportanttoknowtemperatureevolutionofmultiplepositionsinsingleshot,especiallyforthetargetinducedbyheavyionbeam,wherealargevolumeofHEDmattercanbegenerated.Consequently,afastnew-typepyrometerhasbeendesigned.

简介：Biooxidationhasbeensuccessfullyappliedinthefieldofrefractorygoldorepretreatment.Itreferstoaprocessthatusesacidophilicmicroorganismstooxidizeanddeterioratetheminerals,thusmakinggoldavailableforcyanidation.Acidithiobacillusferrooxidans(At.f),achemolithoautotrophic,acidophilic,moderatelythermophilicbacterium,isthemostcrucialmicroorganisminvolvedinbiooxidation.At.fcanobtainenergybyoxidizingferrousironsandreducedsulfurcompoundsintheminerals[1].Asatoxicmetalloidcarcinogen,arsenicisalwaysassociatedwithhydrothermalgolddeposits.Arsenicisfrequentlyfoundasarsenopyrite(FeAsS),realgar(As4S4),orpiment(As2S3)andinrefractorygoldores[2].

简介：Alargeproportionofmutantswithalteredpigmentfeatureshavebeenobtainedviaexposuretoheavy-ionbeams,atechniquethatisefficientfortraitimprovementinthebreedingofplantsandalgae.However,littleisknownaboutthechangesofthephotosyntheticresponseofmicroalgaeafterexposure.Inourgroup,sixprogeniesofScenedesmusquadricaudadeficientinchlorophyllawereisolatedaftercarbon-ionexposurethatwereprovidedbytheheavyionresearchfacilityinLanzhou(HIRFL),China.Twoprogenieswerepickedupbecausetheirphotosyntheticefficiencyandthephotoprotectionabilityweremarkedlydifferentfromthewildtype.