简介:Anovelautomaticseamlessstitchingmethodispresented.Comparedtothetraditionalmethod,itcanspeedtheprocessingandminimizetheutilizationofhumanresourcestoproducegloballunarmap.Meanwhile,anewglobalimagemapoftheMoonwithspatialresolutionof~120mhasbeencompletedbytheproposedmethodfromChang’E-1CCDimagedata.
简介:Amapoftheaverageatomicnumberoflunarrockandsoilcanbeusedtodifferentiatelithologyandsoiltypeonthelunarsurface.Thispaperestablishesalinearrelationshipbetweentheaverageatomicnumberoflunarrockorsoilandthefluxofpositionannihilationradiation(0.512-MeVgamma-ray)fromthelunarsurface.TherelationshipisconfirmedbyMonteCarlosimulationwithdatafromlunarrockorsoilsamplescollectedbyLuna(Russia)andApollo(USA)missions.AmapoftheaverageatomicnumberofthelunarrockandsoilonthelunarsurfacehasbeenderivedfromtheGamma-RaySpectrometerdatacollectedbyChang’e-1,anunmannedChineselunar-orbitingspacecraft.Inthemap,thehigheraverageatomicnumbers(ZA>12.5),whicharerelatedtodifferenttypesofbasalt,areinthemariaregion;thehighestZA(13.2)readingsareassociatedwithSinusAestuum.ThemiddleZA(~12.1)regions,intheshapeofirregularovalrings,areinWestOceanusProcellarumandMareFrigoris,whichseemstobeconsistentwiththedistributionofpotassium,rareearthelements,andphosphorusasauniquefeatureonthelunarsurface.Theloweraverageatomicnumbers(ZA<11.5)arefoundtobecorrelatedwiththeanorthositeonthefarsideoftheMoon.
简介:1.IntroductionIntheinscriptionsofE-ana-tum,rulerofLagas,listinghisvictoriesovervariouscities,thereisafour-linelongpassagethatdescribesE-ana-tum’sdefeatoverthecitycalledArawa:2(1)su-nirURU×Aki-ka,ensi2-be23,saη-bamu-DU,aga3-kar2!(SE3)4be2-seg10Thetranslationsofthisgrammaticallydifficultpassagevarygreatly;thereseemstobenoagreementeitheraboutitsexactmeaningoraboutitsgrammaticalanalysis.
简介:摘要:针对 49E1A1断面钢轨成型为 BS90AM断面钢轨跟端的锻造工艺问题,通过理论分析、计算两种轨型的轨头、轨腰、轨底各个部位的锻造比,绘制锻件图,模具三维造型与有限元模拟验证。最后制作模具进行了实物试生产验证,制定了一种适用于工厂化批量高效生产的典型热模锻工艺。