简介：

简介：

简介：JUNA(JinpingUndergroundlaboratoryforNuclearAstrophysics)isplaningtomeasurethe13C(α,n)16OandsomeotherimportantreactionsatorclosetostellarenergiesusingintenseheliumbeamoutofanECRdrivenacceleratorinJinpingUndergroundlaboratory[1].Deuteriumimpurityinionsourcewillproducessignificantamountofneutrons,limitingthebackgroundlevel.Tocontrolthedeteriumimpurity,wehavedevelopedamethodtomeasurethedeuteriumimpuritywithinHeliumbeamusingthed(d,p)treaction.

简介：LetCdenotethesetofallk-subestsofann-set.AssumeAlohtaininCa,andAlohtainin(A,B)iscalledacross-2-intersectingfamilyif|AB≥2forandA∈A,B∈B.Inthispaper,thebestupperboundsofthecardinalitiesfornon-emptycross-2-intersectingfamillesofa-andb-subsetsareobtainedforsomeaandb,AnewproofforaFrankl-Tokushigetheorem[6]isalsogiven.

简介：

简介：Probingtheopticalpropertiesofmolybdenumdisulfide（MoS2）isvitaltoitsapplicationinplasmon-enhancedspectroscopy,catalysts,sensing,andoptoelectronicdevices.Inthispaper,wetheoreticallystudiedtheRamanandfluorescencepropertiesofmonolayerMoS2usingtip-enhancedspectroscopy（TES）.Inthestrong-couplingTESsystem,theRamanandfluorescenceenhancementfactorscanbeturnedtoashighas4.5×108and3.3×103,respectively,byoptimizingthetip–MoS2-filmdistance.OurtheoreticalresultsnotonlyhelptodeeplyunderstandtheTESpropertiesofmonolayerMoS2,butalsoprovidebetterguidanceontheapplicationsofthenoveltwo-dimensionalmaterial.

简介：

简介：Asafundamentalpropertyofnuclei,atomicmassesarewidelyusedinmanydomainsofscienceandengineering.Areliableatomicmasstablederivedfromtheexperimentaldata,wheretheatomicmassesandtherelevantexperi-mentalinformationcanbefoundconveniently,isinhighdemandbytheresearchcommunity.Tomeetthedemands,theAtomicMassEvaluation(AME)wasinitiatedin1950'sandaseriesofAMEmasstableshavebeenpublishedeversince.CurrentlytheAMEservestheresearchcommunitybyprovidingthemostreliableandcomprehensiveinformationrelatedtotheatomicmasses.ThenewatomicmassevaluationAME2016waspublishedintheMarchissueofChinesePhysicsCastwocom-plementarypapers[1;2].

简介：Newmethodsfordehydrogenationofsteroidal2,5（10）-dieneswith2,3-dichloro-5,6-dicyano-1,4-benzoquinone（DDQ）orpyridiniumhydrobromideperbromide（PHP,Py·HBr·Br2）toaromaticAringsteroidinquantitativeyieldinshorttimearedescribed.

简介：

简介：Wastewaterfromproductionprocessof2,3-acidwastreatedbyadsorptionusingmacroporousresinNDA-708.Afteronlyone-steptreatmentbyresinadsorption,removalefficiencyofthreekindsofnaphthalenechemicalswasabove99%;removaleficiencyofCODcrwasabove96%.Underproperoperatingcondition,desorptionefficiencywasaround100%.Therunningrecordsoftheindustrialfacilityshowedthatthenaphthlenechemicalsindesorptioneffluentcouldbereusedwithoutobviousinfluenceonthequalityoftheproduct.

简介：134Csabranchingpointins-processpathwhichisshowninFig.1.Thebranchingratioisdefinedasfβ=λβ/(λβ+λn).Itcouldbededucedfromtheabundanceof134Baand136Basince136Bagoesthroughbothdecayandneutroncaptureof134Cswhile134Baonlyexperiencesdecaychannel[1].Duetoboth134Baand134Baarepures-processnuclei,thisbranchingpointisagoodapproachtodeterminethes-processparameters.Withtemperaturedependentβ-decayrateof134Cs,thetemperatureofs-processcouldbededuced.

简介：Multimediastreamingservedthroughpeer-to-peer(P2P)networksisboomingnowadays.However,theend-to-endstreamingqualityisgenerallyunstableduetothevariabilityofthestateofserve-peers.Ontheotherhand,proxycachingisabandwidth-efficientschemeforstreamingovertheInternet,whereasitisasubstantiallyexpensivemethodneedingdedicatedpowerfulproxyservers.Inthispaper,wepresentaP2PcooperativestreamingarchitecturecombinedwiththeadvantagesofbothP2Pnetworksandmultimediaproxycachingtechniquestoimprovethestreamingqualityofparticipatingclients.Inthisframe-work,aclientwillsimultaneouslyretrievecontentsfromtheserverandotherpeersthathaveviewedandcachedthesametitlebefore.Inthemeantime,theclientwillalsoselectivelycachetheaggregatedvideocontentsoastoservestillfutureclients.Theassociateprotocoltofacilitatethemulti-pathstreamingandadistributedutility-basedpartialcachingschemearedetailedlydis-cussed.Wedemonstratetheeffectivenessofthisproposedarchitecturethroughextensivesimulationexperimentsonlarge,Inter-net-liketopologies.

简介：HL-2Atokamak(majorradiusR=165cm,minorradiusα=38-45cm)wassuccessfullyachievedsingle-nulldivertordischargewithgoodcontrolloftheplasmacurrentandpositioninexperiment.Parametersachievedinthiscompaignwereasfollows:toroidalmagneticfieldBT=1.4T,plasmacurrentIp=168kA,plasmaelectrondensityne=1.7×10^19/m^3,plasmaexisttimetp=920ms.

简介：

简介：

简介：

简介：

简介：

简介：ＴＨＥ　ＳＵＰＰＯＲＴＥＤ　ＧＯＬＤ　ＣＡＴＡＬＹＳＴＳ　ＦＯＲ　ＣＬＯＳＥＤ　ＣＹＣＬＥ　ＣＯ２　ＬＡＳＥＲＴＨＥＳＵＰＰＯＲＴＥＤＧＯＬＤＣＡＴＡＬＹＳＴＳＦＯＲＣＬＯＳＥＤＣＹＣＬＥＣＯ２ＬＡＳＥＲ￥ＺｈｅｎｇＰｉｎｇＨＡＯ；ＬｉＤｕｎＡＮ；...