简介：

简介：

简介：ＲａｄｉｏａｃｔｉｖｅＩｏｎＢｅａｍＬｉｎｅｉｎＬａｎｚｈｏｕ￥ＺｈａｎＷｅｎｌｏｎｇ；ＧｕｏＺｈｏｎｇｙａｎ；ＬｉｕＧｕａｎｈｕａ；ＹｉｎＱｕａｎｍｉｎ；ＺｈｏｕＪｉａｎｑｕｎａｎｄＷａｎｇＹｉｆａｎｇＡｓａｎｅｗｆｒｏｎｔｉｅｒｉｎｎｕ...

简介：-ThispaperdescribesaradioactivetracerexperimentcarriedoutatthelandwardspoilsiteoftheNorthPassageintheYangtzeEstuaryinJune,1991.Scandium-46wasselectedasthetracer,thetotalactivityreleasedwas179.45GBqandtheamountoftheSandium-46glasswas495g.Thepurposeoftheexperimentwastodeterminethesedimentmovementdirection,path,velocityandtransportrate,andtherefore,toprovidedirectevidenceforusingthelandwardspoilsiteinthefuture.Theexperimentalresultsshowedthatthesedimentmovementwasgovernedbytheebbtidecurrentduringtheperiodofmeanandneaptideswhentheradioactivetracerwasinjectedbothonthefloodandebbtides,andthesedimentmovedfromthereleasepointtothemiddleoftheNorthPassagenearnavigationbuoyNo.269.Thedirecitonofthesedimentmovementwas110°,theparticlevelocitywas758m/d,andthesedimenttransportrateperunitwidthwas47.8m3/md.

简介：

简介：

简介：Theexpressedproteinswereextractedfromhumanbenignprostatichyperplastictissuesobtainedwithtransurethralresectionoftheprostatebeforeandaftertheirirradiationwithradioactivenuclide.Theproteinswereseparatedbytwo-dimensionalgelelectrophoresisandanalyzedbymassspectrometry.Fourproteinsweredifferentiallyexpressedandwereidentifiedwithadatabasesearch.ThreewereassociatedwiththeregulationofcellmotionandonewaslactatedehydrogenaseB,whichplaysanimportantroleintheprocessofcellenergymetabolismandcellstatechangesintissue.Thecomparativeproteomicanalysisindicatesthatafterirradiationwithradioactivenuclide,changesoccurinhumanbenignprostatichyperplasticcells,andassociatedproteinsareexpressed.Analysisoftheseproteinsshouldhelptoidentifythemechanisminvolvedwhenhumanprostatichyperplasiaistreatedbyirradiationwithradioactivenuclide.

简介：