简介：TheBe-basedmaterialswithmanyparticularpropertiesleadtoanimportantresearchsubject.Theinvestigationprogressesinthefabricationtechnologiesareintroducedhere,includingmainthreekindsofBe-basedmaterials,suchasBe–Cucapsule,Be_2Cablatorandhigh-purityBematerial.ComparedwiththepioneerworkgrouponBe-basedmaterials,thedifferencesinBe–Cutargetfabricationweredescribed,andagrainrefinementtechniquebyanactivehydrogenreactionforBecoatingwasproposeduniquely.Be_2CcoatingswerefirstpreparedbytheDCreactivemagnetronsputteringwithahighdepositionrate(~300nm/h).PurepolycrystallineBe_2Cfilmswithuniformmicrostructures,smoothsurface,highdensity(~2.2g·cm~3)andgoodopticaltransparencywerefabricated.Inaddition,thehigh-purityBematerialswithmetalimpuritiesinappmmagnitudewerefabricatedbythepyrolysisoforganometallicBe.

简介：

简介：Powdermetallurgy(PM)superalloysareanimportantclassofhightemperaturestructuralmaterials,keytotherotatingcomponentsofaeroengines.InthepurviewofthepresentchallengesassociatedwithPMsuperalloys,twonovelapproachesnamely,powderpreparationandtheinnovativespray-formingtechnique(formakingturbinedisk)areproposedandstudied.Subsequently,advancedtechnologieslikeelectrode-induction-meltinggasatomization(EIGA),andspark-plasmadischargespheroidization(SPDS)areintroduced,forceramic-freesuperalloypowders.Presently,newprocessingroutesaresoughtafterforpreparingfinerandcleanerrawpowdersfordisksuperalloys.Theprogressofresearchinspray-formedPMsuperalloysisfirstsummarizedindetail.Thespray-formedsuperalloydisksspecificallyexhibitexcellentmechanicalproperties.ThispaperreviewstherecentprogressininnovativetechnologiesforPMsuperalloys,withanemphasisonnewideasandapproaches,centraltotheinnovationdrivingtechniqueslikepowderprocessingandsprayforming.

简介：

简介：1.ThemutationbreedingofplantsIn2016,themutationmechanismofvariousplantmutantsincludingArabidopsisthaliana,Geranium,Trades-cantiauminensis,TaraxacumkoksaghyzRodinandalgaeobtainedbyheavyionbeammutationbreedingtechniqueswereinvestigated.Thegenome-wideprofilingofanArabidopsismutantnamedcivar(CarbonionbeamsInducedVariegated)wasrevealedbyusingre-sequencingandtheroughmap-basedcloningtechniques.AphenotypescreeningofArabidopsisthalianairradiatedbycarbonionbeamsbasedonhigh-throughputimagingtechniquecombiningtheprincipalcomponentanalysisandscattermatrixclusteringanalysiswasbuiltandoptimizedwhichcanscreenthevariationofplantmutantpopulations.Thepigmentcomponentsandquantitiesandexpressionprofilesofkeygenesinvolvedinanthocyaninbiosynthesisofflower-colormutantofGeraniumandleaf-colormutantofTrades-cantiauminensiswereinvestigated.MutationbreedingofTaraxacumkoksaghyzRodininducedbycarbonionbeamirradiationswhichisnotableforitsproductionofhighqualityrubberandinulinwasstarted.Inaddition,thephotosyntheticresponseofthemutantsofScenedesmusquadricaudawithalteredpigmentfeatureswereanalyzed.

简介：Asanoveladvancedoxidationprocess(AOP),electro-Fentonprocessispowerfulfordegradingmostorganiccompoundsincludingtoxicandnon-biodegradableones,andsohasattractedgreatattention.Thispaperreviewsthisprocessindetailincludingthemechanism,electrolyticbath,electrodematerials,aerationsandoperationparameters.Theapplicationofelectro-Fentonmethodinwastewatertreatmentisevaluatedandsummarized.Futureworkinthisfieldissuggested,andthreemaindirectionsofnewelectrodeexploitation,developmentofassistedtechnologiesandmechanisticstudyshouldbestrengthened.

简介：Thehighrepetitionrate10J/10nsYb:YAGlasersystemanditskeytechniquesarereported.Theamplifiersinthissystemhaveamulti-passV-shapestructureandtheheatintheamplifiersisremovedbymeansoflaminarwaterflow.Inthemainamplifier,thelaserisfour-pass,andanapproximately8.5J/1Hz/10nsoutputisachievedintheprimarytest.Thefar-fieldoftheoutputbeamisapproximately10timesthediffractionlimit.Becauseofthehigherlevelsofamplifiedspontaneousemission(ASE)inthemainamplifier,theoutputenergyislowerthanexpected.Attheendwediscusssomemeasuresthatcanimprovethepropertiesofthelasersystem.

简介：

简介：Asanatomicemissionspectroscopytechnique,laser-inducedbreakdownspectroscopy（LIBS）,firstproposedbyBreechandCrossin1962[1],hasattractedmuchaca-demicandindustrialinterestforitsuniqueproperties.Byfocusingapulsedlaserontothesurfaceofatarget,laser-inducedplasmascanbegenerated.Thesimplicityofsamplepreparationofthelaserablationprocessen-ablesLIBStodirectlyanalyzesolid,liquid,orgaseousmaterialsintheatmosphere,makingitaconvenienttoolforchemicalanalyses.TheuniquefeaturesofLIBSsuchasrequiringlittleornosamplepreparation,allowingre-motedetection,andfacilitatingmultipleelementalanal-yseshavecontributedtoitsrapiddevelopmentinrecentyears.

简介：Magneticrotationandantimagneticrotationareexoticrotationalphenomenaobservedinweaklydeformedornear-sphericalnuclei,whicharerespectivelyinterpretedintermsoftheshearsmechanismandtwoshearslikemechanism.Sincetheirobservations,magneticrotationandantimagneticrotationphenomenahavebeenmainlyinvestigatedintheframeworkoftiltedaxiscrankingbasedonthepairingplusquadrupolemodel.Forthelastdecades,thecovariantdensityfunctionaltheoryanditsextensionhavebeenprovedtobesuccessfulindescribingseriesofnuclearground-statesandexcitedstatesproperties,includingthebindingenergies,radii,single-particlespectra,reso-nancestates,halophenomena,magneticmoments,magneticrotation,low-lyingexcitations,shapephasetransitions,collectiverotationandvibrations,etc.Thisreviewwillmainlyfocusonthetiltedaxiscrankingcovariantdensityfunctionaltheoryanditsapplicationforthemagneticrotationandantimagneticrotationphenomena.

简介：

简介：

简介：RecentexperimentalresultsofHL-1MtokamakandprogressofHL-2Aprojectarepresented.Strongfishboneinstabilitywasobservedduringoff-axisECRH.ThisisfirstobservationofthefishboneinstabilitypurelydrivenbyenergeticelectronsproducedbyECRH.TheMBIwasfirstproposedanddemonstratedonHL-1M.RecentlynewresultsofMBIexperimentwereobtainedbyincreasingthepressureofgas.Astair-shapedensityincrementwasobtainedwithhigh-pressuremulti-pulseMBIjustlikethedensityevolutionbehaviorduringthemultipelletinjection.Itisshown

简介：Duringthepastyear,biophysicsgroupatInstituteofModernPhysics(IMP)obtainedlotsofachievementsintheresearchofheavy-ionmutationbreedingandproductionchainofsweetsorghum.Infundamentalresearchfield,amutantpopulationofArabidopsisthalianainducedbycarbonionbeamradiationwasestablishedinM2generation.Thetotalmutationratewas4.77%.Amutantmarked197#,whichhadfrostbite-like,palegreen,wrinkledandunevenleavesanddisplayedloosebractsandlatematuration,wasobtainedandreportedforthefirsttime.Generoughmappingresultsdemonstratedthatthereweretwomutationsitesinthe1stand4thchromosomeof197#mutant,indicatingheavyionradiationmightinducemorecomplicatedmutationsbeyondourcurrentrecognition.Thewholegenomeresequencingofthismutantisstillinprogress.Inaddition,high-yieldstrainsofmicrobeswhichhavepotentialvalueforcommercialapplication,suchasCorynebacteriumglutamicumandLacbobacillusthermophiles,werescreenedusingheavy-ionmutationtechnique.

简介：

简介：