简介:教学目标:基础性目标:I.Knowledgeobjectives:Tolearntousethepresentprogressivetense.II.Abilityobjectives:Tolearntotalkaboutwhatpeoplearedoing.III.Moralobjective:Tolearntogetalongwellwithourfamilymembers,neighborsandfriends.Companyisthelongestconfessionoflove.发展性目标:1.Tohelpthestudentsdevelopthelisteningandspeakingskills.2.Toleadthestudentstoenhancetheresponsibilitiesofhome.
简介:Aneight-shotspelletinjection(PI)andasupersonicmolecularbeaminjection(SMBI)systemhaveproposedanddevelopedontheHL-1Mtokamakforadvancedfuellingexperiments.ThepeakeddensityprofileandimprovedconfinementaretypicalfeatureofPIandSMBIdischarge.ItstronglydependsonthewallrecyclingconditionsoftheHL-1Mtokamakandinjectionparameters.
简介:美国最近公布的伊拉克战争报告披露,号称“陆战之王”的M1坦克并非无懈可击.在俄制反坦克武器面前仍有可以利用的严重弱点。
简介:IntheHL-1Mplasmaexperiments,tworefuelingways,thepelletinjectionandthegaspuffing,areusuallyused.Inrecentyears,anewrefuelingmethod,thesupersonicmoleculebeam(SMB)injection,hasbeendeveloped.SMBinjectionisanattempttoenhancethepenetrationdepthandthefuellingefficiencyofgas,aswellastoreducesurfaceabsorptionoftheinjectedparticlesandtheimpuritycontentintheplasma.InSMBinjectionexperiments,thegasisinjectedintotheplasmathroughaLavalnozzleathighgaspressure.Inthiscase,thepeakdensityandimprovingconfinementhavebeenachievedasinthecaseofapelletinjection.
简介:Anomaloustransportisoneofthemostimportantsubjectsforthetokamakresearch.Experimentshaveconfirmedthatanomaloustransportiscausedbyturbulencesdrivenbytemperatureanddensitygradientinplasma.Theexperimentsshowthationdiffusioncanbereducedtoneoclassicallevelinhighparameterplasmawithinternaltransportbarrier.
简介:TheMHDinstabilitiesintheplasmacentrecanbeobservedwithpinholecamerastorecordsoftX-ray(SXR)emissionalongmanychordswithhighspeatialresolution.ThesoftX-raysystemintheHL-1Mtokamakconsistsofthreepinholecameraswith60chords.Themethodofsingularvaluedecomposition(SVD)cansplitsuchsignalsintoorthogonalspatialandtemporalvectors.Bythismeans,