简介:NGARITEAMSTERSTrueTibetanHeroes¥WUWEIPINGDriversworkingfortheNgariTruckTransportCo.haveonnumerousoccasionsexhibitedtrueherois...
简介:ACoentury-OldDreamWillComeTrueFOLLOWINGTHEOpiumWarin1840,Chinawasreducedtoasemi-feudal,semicolonialcountry.Todriveouttheimper...
简介:TheShanghaiWomen’sPrisonwasbuiltinOctober1996.Walkingintotheconfinement,wefeltthatitisaspecialkingdomofwomen.Theprisonwardenisamiddle-agedwoman,lookingveryagileandcapable.Guardscomingwithherwereallyounggirls,elegantandbeautiful.Ifnotfortheirpoliceuniforms,theyshouldhavebeentakenascollegestudents.Assoonaswesatdown,wewereshownafilmstripthatrecordedthemovingscenesofwomeninmatesandguardsspendingthe2001SpringFestivaltogether.Onescenepresentedrepresentativesofwomen’sfederationofthePutuoDistrictofShanghai,whovisitedthe
简介:Low-lyingstatesofaverticallycoupledthree-layerquantum-dotsystemarestudied.Eachlayercontainsoneelectron,andthetunnellingofelectronsbetweenlayersisneglected.EffectsoftheinterlayerseparationdandtheexternalmagneticfieldBareevaluatedbynumericalcalculations.Inthestrongcouplingcase(i.e.dissmall),asinasingledot,transitionsoftheangularmomentumLofthetruegroundstatesoccurwhenBincreases,whereasintheweakcouplingcasethetransitiondoesnotoccurandLremainszero.Furthermore,itisfoundthatthevariationofdmayalsoinducetheLtransition.Asaresult,aphasediagramofLofthetruegroundstateisgiveninthed-Bplane.
简介:Thispaperpresentsawaytomeasurethetruetemperatureoftheelectronicdeviceswithoutdisturbingtheirnormaloperatingconditions,whichinvolvedwithestimatingtargetemissivity,backgroundtemperaturecorrectlyandchoosinginfraredtransparentmaterialanditstransmissionestimation.Thetemperaturedistributionsofthemainboardinpersonalcomputerweremeasuredbythemethodpresentedherewithinfraredthermographyinseveraldifferentrunningconditions.Themeasurementerrorsandtheirpossibleremediesarealsodiscussed.
简介:Objective:Toinvestigateanewmethodtoconstructtissue-engineeringbonethatwillbeapplicableclinically. Methods: Thecultured5thgenerationrabbitbonemarrowstromaosteoblasts(MSO)wasdissolvedin3%sodiumalginatesolution(thefinalconcentrationofsodiumalginateinthesolutionbeing1%,andMSO,5×106/L),andtheninoculatedintopreparedtrueboneceramic(TBC)andgelatinizedthebonebydribblingwithcalciumgluconate.Thestandardbonedefectmodelsweremadein48adultNewZealandrabbitsbothradius.Amongthe48rabbits,24wereinGroupsAandB,inwhichtheleftradiuswasimplantedwithgelatinizedMSO-TBC(GroupA)andrightradiusimplantedwithautograft-bone(GroupB);andtheother24wereincontrolgroupwhoseleftradiuswasimplantedwithnon-gelatinizedMSO-TBC(GroupC)andrightradiusimplantedwithgelatinizedTBC(GroupD).Outcomesoftheimplantedboneswereassessedbyradiology,pathologicalhistology,osteogeneticquantitativeanalysis,andbiomechanicsat2,4,8,12weekspostoperatively.Results: InGroupsAandB,asatisfactorybonereparationandbonyunionwasnotedwithin12weeks.InGroupsCandD,bonereparationwasnotsatisfiedcomparedwithGroupAintermsofostogeneticquantityandbiomechanics. Conclusions: GelatinizedMSO-TBCisanidealartificialactivebonethatovercomesTBCshortcomingsoffragilenessandsmoothsurfacethatisnoteligibleforseedcellsadhesion.Itispromisingtoputintoclinicaluseextensively.