简介:在上面提到的由消费明星做的那些广告中,明星做广告,由消费明星把消费伦理宣扬得赤裸裸的莫过于王志文做的"派"牌服装广告
简介:在上面提到的由消费明星做的那些广告中,明星做广告,由消费明星把消费伦理宣扬得赤裸裸的莫过于王志文做的"派"牌服装广告
简介:在上面提到的由消费明星做的那些广告中,明星做广告,由消费明星把消费伦理宣扬得赤裸裸的莫过于王志文做的"派"牌服装广告
简介:ThistalkwillsummarizetherecentworkrelatedtoakindofnewnanomaterialsproducedbytheSMAT(surfacemechanicalattritiontreatment).Theconceptofsurfacenanocrystallizationofmaterialswillbepresented.Intermsofthegrainrefinementmechanisminducedbyplasticdeformation,anovelsurfacemechanicalattrition(SMA)techniquewasdevelopedforsynthesizingananostructuredsurfacelayeronmetallicmaterialsinordertoupgradetheoverallpropertiesandperformance.ThegrainrefinementmechanismofthesurfacelayerduringtheSMAtreatmentwillbeanalyzedintermsofthenanostructureobservationsinseveraltypicalmaterials.Veryhighyieldstress(5timesofthebasematerial)onthesurfacelayerofthematerialobtainedbytheSMAThasbeenobserved.Theeffectofsurfacenanostructuresonthemechanicalbehaviorandonthefailuremechanismofmetallicmaterialshowsthepossibilitytodevelopanewstrengthgradientcompositeusingco-rollingandnitriding.Theroleofresidualstressinducedduringthetreatmentwillbeinvestigatedanddiscussed.Thedevelopedmaterialsarealsoporosityfreematerialswhichcanbeusedasreferencematerialforthelocalmechanicalbehaviorinvestigationtechniquesuchasthenanoindentation.Ageneralconceptforobtaininghighstrengthandhighductilitynanostructuredmaterialswillbepresented.Theexceptionalhighstrengthandhighductilitysteelshavedeveloped.Thesimulationofthemechanismsforimprovingductilityofhighstrengthnanostructuredmaterialswillbepresented.Thepotentialapplicationsforthelandtransportationvehicles(car,bus,train)andwindenergyhavebeeninvestigated.Someexamplesofconceptdesignfortheintegrationoftheadvancednanostructuredsteelswillbepresented.
简介:ASchwarzschildmicroscopewithanumericalapertureof0.2andamagnificationof130ina100μmfieldofview(FOV)isdesignedandisworkingat13.5nm.Meanwhile,aCCDisusedasadetectorwithapixelsizeof13μm×13μmandimagingareaof13mm×13mm.Theimagingqualitywithtolerancesofsystemanderrorsofmirrorsareconsidered.Weobtainthatthebeston-axesobjectresolutioncanbeuptoabout200nm,theaveragevalueis230nm,andtheresolutionisabout360nmat80μmFOV.