简介：世上的每一个人都上了天堂神说：“要男人分成两队人，一是在世上控制女人的男人，另一是被女人鞭打的男人。

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简介：LetG1andG2befinitedigraphs,bothwithvertexsetV.SupposethateachvertexvofVhasnonnegativeintegersf（v）andg（v）withf（v）≤g（v）,andeacharceofG4hasnonnegativeintegersai（e）andbi（e）withai（e）≤bi（e）,i=1,2.InthispaperwegiveanecessaryandsufficientconditionfortheexistenceofkarborescencesinG4coveringeachare（?）ofGiatleastai（e）andatmostbi（e）times,i=1,2,andsatisfyingtheconditionthatforeachvinVf（v）≤r1（v）=r2（v）≤g（v）wherer4（v）denotethenumberofthearborescencesinG?rootedatv.

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简介：Ｃｈｉｎａ′ｓＴｗｏＯｂｊｅｃｔｉｖｅｓＢＥＴＭＥＥＮＮＯＷａｎｄｔｈｅｅｎｄｏｆｔｈｅｃｅｎｔｕｒｙ．ｔｈｅＣｈｉｎｅｓｅｐｅｏｐｌｅａｒｅｆａｃｉｎｇｔｗｏｏｂｊｅｃｔｉｖｅｓ：ｔｏａｃｈｉｅｖｅａｌｉｆｅｏｆｒｅｌａｔｉｖｅｃｏｍｆｏｒｔｂｙｑ...

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简介：Ｔｗｏ　Ｈａｖｅｎｓ　Ｏｆ　Ｐｅａｃｅ　Ｉｎ　ＪｉａｌｉＴｗｏＨａｖｅｎｓＯｆＰｅａｃｅＩｎＪｉａｌｉ￥ＣｅｒｉｎｇＹｕｚｈｏｉｎＪｉａｌｉＣｏｕｎｔｙｉｎｔｈｅｅａｓｔｅｒｎｐａｒｔｏｆｔｈｅＮｏｒｔｈｅｒｎＴｉｂｅｔａｎＧｒａｓｓｌａｎｄｓａｒｅ...

简介：SinceChinahookeduptotheInternetin1994,Chinesenetizenshiphasincreasedfromthefewhundredsofthousandsrecordedin1995toitspresent87million-secondlargestintheworld.TheInternethasstreamlineddailylifeandalsoinfluencedlifeconcepts.Thevoiceofthe“silentmajority”nowheardontheInternet,speaksofandsearchesforsolutionstopsychologicalproblemsexacerbatedbyatransitionalsociety.

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简介：WeproposetwokindsofnewJaynesCummingsmodelsrelatingtotwo-photonprocessbyusingthesupersymmetricunitarytransformation.Thecorrespondingenergyeigenvaluesandeigenvectorsareobtained.

简介：普洛斯彼罗和浮士德作为《暴风雨》和《浮士德博士》中的主角，在英国文艺复兴文学史上分别代表着好魔法师和坏魔法师。普洛斯彼罗的普魔法与浮士德追求的恶魔法大相径庭。浮士德直到最后一刻依然表现出对魔法的狂热也与普洛斯彼罗在最后一幕里平静地放弃魔法截然不同。作为一个恶魔法的实施者，浮士德博士为了追求他所谓的魔法师哲学而放弃了神学研究，进入了邪恶的世界，他实施的是“黑魔法”，最终必将会“堕入万劫不复的深渊”。然而普洛斯彼罗的魔法总的来说却是好的，与高尚的学术和精神生活是相关的。他的魔法只属于“从米兰放逐的时期”。是局限在孤岛之际的，跟米兰无关。普洛斯彼罗最终放弃了魔法，因为魔法已经完成了其应尽的义务，而对于其现在所追求的目标已不再有益。然而，从魔法的完成情况来看：普洛斯彼罗和浮士德都没有完成一个真正的魔法师所应尽的责任。前者出于自愿放弃了自己的魔力，后者则是被迫放弃了他倾其一生追求的魔力。

简介：Inthispaper,basedontheequationspresentedin[2],thehead-oncollisionbetweentwosolitarywavesdescribedbythemodifiedKdVequation(themKdVequation,forshort)isinvestigatedbyusingthereductiveperturbationmethodcombinedwiththePLKmethod.Thesewavespropagateattheinterfaceofatwo-fluidsystem,inwhichthedensityratioofthetwofluidsequalsthesquareofthedepthratioofthefluids.Thesecondorderperturbationsolutionisobtained.Itisfoundthatinthecaseofdisregardingthenonuniformphaseshift,thesolitarywavespreservetheiroriginalprofilesaftercollision,whichagreeswithFornbergandWhitham’snumericalresultofovertakingcollision161whereasafterconsideringthenonuniformphaseshift,thewaveprofilesmaydeformaftercollision.

简介：Basedonthecouplingoftwodistantthree-levelatomsintwoseparateopticalcavitiesconnectedwithtwoopticalfibres,schemesonthegenerationofseveraltwo-qubitlogicgatesarediscussedundertheconditionsof△=δ-2νcosπk/2g/2andν～g.Discussionandanalysisofthefidelity,gatetimeandexperimentalsetupsshowthatourschemesarefeasiblewithcurrentopticalcavity,atomictrapandopticalfibretechniques.Moreover,theatom-cavity-fibrecouplingcanbeusedtogenerateanN-qubitnonlocalentanglementandtransferquantuminformationamongNdistantatomsbyarrangingNatom-cavityassemblagesinalineandconnectingeachtwoadjacentcavitieswithtwoopticalfibres.

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简介：Onthebasisofmodeltests,potentialflowtheory,andviscousComputationalFluidDynamics(CFD)method,thehydrodynamicinteractionsbetweentwounderwaterbodieswereinvestigatedtodeterminetheinfluencingfactors,changingrule,interactionmechanism,andappropriatemethodsdescribingthem.Somespecialphenomenawerediscoveredintwoseriesofnear-wallinteractionexperiments.Themathematicalmodelandpredictingmethodswerepresentedforinteractingforcesnearwall,andthecalculationresultsagreedwellwiththeexperimentalones.Fromthecomparisonsamongnumericalresultswithrespecttononviscosity,numericalresultswithrespecttoviscosity,andmeasuredresults,dataontheinfluenceofviscosityonhydrodynamicinteractionswereobtained.Forhydrodynamicinteractionrelatedtomulti-bodyunsteadymotionswithsixdegreesoffreedomthatisdifficulttosimulateintests,numericalpredictionsofunsteadyinteractingforcesweregiven.