简介:Theconvolutionaldiferentiatormethodfornu┐mericalmodelingofacousticandelasticwave┐fieldsZHONG-JIEZHANG(张中杰),JI-WENTENG(滕吉文)an...
简介:远视者定量,叫的theta操作(∂),从平常的性质被激发,衍生物在功能的一个产品的推导上有它。用一个集合上的任何地图,一个人能定义∂-operations。在这篇论文,我们在groupoids,戒指,域和向量空格上或在相应亢奋的结构上在∂-operations上继续我们的学习。主要,用∂-operations,一个人获得H形成亢奋的结构的最大的班的V-structures,。为亢奋的结构的表示理论,由亢奋的矩阵,一个人需要特殊HV-rings或HV-fields,这些亢奋的结构能因此被使用。而且,我们与亢奋的结构的另外的班学习这些∂-structures的关系,特别与HV-structures。
简介:WeestablishtheconstructiontheoryoffunctionbaseduponalocalfieldKpasunderlyingspace.Byvirtureoftheconceptofpseudo-differentialoperator,weintroduce"fractalcalculus"(or,p-typecalculus,or,Gibbs-Butzercalculus).Then,showtheJacksondirectapproximationtheorems,BermsteininverseapproximationtheoremsandtheequivalentapproximationtheoremsforcompactgroupD(Kp)andlocallycompactgroupK+p(=Kp),sothatthefoundationofconstructiontheoryoffunctiononlocalfieldsisestablished.Moreover,theJacksontype,Bernsteintype,andequivalentapproximationtheoremsontheH?lder-typespaceCσ(Kp),σ>0,areproved;thentheequivalentapproximationtheoremonSobolev-typespaceWrσ(Kp),σ≥0,1≤r<+∞,isshown.
简介:Thevisibleandnear-UVemissionspectroscopyofmethane(CH4)inducedbyafemtosecondintenselaserfield(800nm,40fs,1014W∕cm2)isstudied.BymeasuringthedecayprofilesoftheneutralfragmentproductCH(A2Δ→X2Π),tworeactionpathways,i.e.,theelectron-ionrecombinationthroughe-tCHt4andthedirectdisintegrationofCHt4arefoundtoberesponsibleforpopulatingtheelectronicexcitedstatesoftheneutralfragmentproductCH,whichgivesrisetothephotoemissions.Ourresultsprovidecomplementaryinformationonpreviousunderstandingofthestrong-field-inducedphotoemissionmechanismofCH4throughneutraldissociationofsuperexcitedstates.
简介:Abriefaccountisprovidedoncrack-tipsolutionsthathaverecentlybeenpublishedintheliteraturebyemployingtheso-calledGRADELAmodelanditsvariants.TheGRADELAmodelisasimplegradientelasticitytheoryinvolvingoneinternallengthinadditiontothetwoLame'constants,inanefforttoeliminateelasticsingularitiesanddiscontinuitiesandtointerpretelasticsizeeffects.Thenon-singularstrainsandnon-singular(butsometimessingularorevenhypersingular)stressesderivedthiswayunderdifferentboundaryconditionsdifferfromeachotherandtheirphysicalmeaninginnotclear.Thisisdiscussedwhichfocusontheformandphysicalmeaningofnon-singularsolutionsforcrack-tipstressesandstrainsthatarepossibletoobtainwithintheGRADELAmodelanditsextensions.
简介:WediscussthebosonizationofarelativisticverydenseFermigasinamagneticfieldandtheconsequentBoseEinsteincondensationoftheresultingrelativisticvectorgasofchargedparticles.Themodelmaybeappliedtopairedspin-upelectrons.Weshowthatsuchsystemsmaymaintainself-consistentlymagneticfieldsoforder10^10-10^13G.Thatpairingcouldbetheoriginoflargemagneticfieldsinsomewhitedwarfsandneutronstars.Forfieldslargeenough(-10^13forwhitedwarfs),thesystembecomesunstableandcollapses.
简介:TheChineseFusionEngineeringTokamakReactor(CFETR)isanimportantintermediatedevicebetweenITERandDEMO.TheWaterCooledCeramicBreeder(WCCB)blanketwhosestructuralmaterialismainlymadeofReducedActivationFerritic/Martensitic(RAFM)steel,isoneofthecandidateconceptualblanketdesign.AnanalysisofrippleanderrorfieldinducedbyRAFMsteelinWCCBisevaluatedwiththemethodofstaticmagneticanalysisintheANSYScode.Significantadditionalmagneticfieldisproducedbyblanketanditleadstoanincreasedripplefield.Maximumripplealongtheseparatrixlinereaches0.53%whichishigherthan0.5%oftheacceptabledesignvalue.Simultaneously,oneblanketmoduleistakenoutforheatingpurposeandtheresultingerrorfieldiscalculatedtobeseriouslyagainsttherequirement.
简介:MultivariateObjectiveAnalysisofWindandHeightFieldsintheTropicsS.K.Sinha,S.G.NarkhedkarandS.Rajamani(IndianinstituteofTropical...
简介:在这份报纸,在2005年7月9-10日期间发生在Huaihe河盆的重降雨进程被新一代学习数字天气预言模型系统--葡萄,从模型的预言上的不同起始的领域效果的看法。几个数字实验与起始的条件和T213L31和NCEP期末考试分析分别地提供的侧面的边界领域被进行。包括结果上的三维的变化吸收的效果,葡萄产生到不同起始的条件的预言产品的敏感被讨论。在分析二块起始的地和四模仿的结果之间的差别以后,到降水预报上的起始的地和他们的影响的模型的memonic能力被调查。分析证明亚synoptic的明显的差别在T213和NCEP起始的领域之间可伸缩,它导致相应不同模拟结果,并且差别不消失,集成跑。它是否有数据吸收,也为一样的起始的地显示出那,它仅仅显然影响葡萄模型结果在起始24h。然后,差别减少。另外,大雨的地点和紧张由葡萄预报模型进一步离事实,而是大奔流的雨的预报区域很亲密从事实有一些差别。当它有吸收,9-12-,12-24-,和0-24-h降水时,没有吸收,为一样的起始的地,模型的预报比那些好。都,这些建议葡萄数字预言的能力取决于不同的起始的地和侧面的边界条件到某程度,并且起始的地的差别将决定葡萄的差别模仿了结果。[出版摘要]