共查询到20条相似文献,搜索用时 15 毫秒
1.
ON A CONSTANT OF QUASICONFORMAL DEFORMATION 总被引:1,自引:0,他引:1
吴泽民 《上海交通大学学报(英文版)》1999,(2)
IntroductionAcontinuousreal-valuedfunctionf(x)ontherealaxisRissaidtobelongtoZygmundclassΛ(R)ifitsatisfies‖f‖z=supx,t∈Rf(x+t)-2f(x)+f(x-t)t<+∞(1)Acontinuouscomplex-valuedfunctionF(z)iscalledaquasiconformaldeformationifithasgen-eralizedderivationFand… 相似文献
2.
IntroductionOctahedralcomplexesofd9Cu(Ⅱ)andhigh-spind4Cr(Ⅱ)orMn(Ⅲ)areexpectedtobesusceptibletoJahn-TellerdistortionscausingthemtodeviatefromidenticalOhsymmetrybyeitheratrigonaldistortionoratetragonalelon-gationorcompression[1].Buttherearesomecopper(Ⅱ… 相似文献
3.
宋宝瑞 《上海交通大学学报(英文版)》1999,(2)
1 TheUnivariateConvergenceTheoremonRationalInterpo-lationArationalfunctionrnm(z)issaidtohavetype(n/m)ifithastheformrnm(z)=pn(z)/qm(z),qm(z)0wherepn(z)isapolynomialofdegreeatmostnandqm(z)isapolynomialofdegreeatmostm.Concerningtheconvergenceofthe(n/m)… 相似文献
4.
IntroductionForgivenpositiveintegersv,kandλ,abalancedincompleteblockdesignoforderv,blocksizekandindexλ,denotedB(k,λ;v),isapair(X,A)whereXisav-setandAisacollectionofk-sub-sets(calledblocks)ofXsuchthateach2-subsetofXiscontainedinpreciselyλblocks.Let(X,… 相似文献
5.
IntroductionDirectsequencespreadspectrummultipleaccess(DS/SSMA)systemcanofferhighercapacitythanfrequencyhoppingspreadspectrummulti-pleaccess(FH/SSMA)system,butthecapacityofthesystemdependsgreatlyonthepoweroftheuser'sreceivedsignals,thatisso-callednea… 相似文献
6.
Cytomegalovirus(CMV)interstitialpneumonitis(IP)isoneofthemosturgentprobleminorgantransplantationbecauseofitshighincidenceandm... 相似文献
7.
A FUZZY REASONING PETRI NET MODEL AND ITS REASONING ALGORITHM 总被引:2,自引:0,他引:2
IntroductionPetrinet(PN)isamodelingmethodusingnetgraphs.Usually,Petrinetisusedtomodelandanalyzediscreteeventsystems(DES),suchascommunication,manufacturingsystemsandsoon.Currently,somework[1,2]isbasedonacom-binationofPetrinetsandartificialintelligence… 相似文献
8.
Wang Jianli Zhang Wanggang Wang Xiangling Cao Xingmei Chen YinxiaDepartment of Hematology Second Affiliated Hospital of Xi′an Medical University Xi′an 《西安交通大学学报(英文版)》1999,(2)
Multiplemyeloma(MM)isamalignantplasmocytomaoccurresinhematopoieticsystem,whichetiologyandpathogenesisarestillunclear.Epstein-Barrvirus(EBV)isatumorigenicDNAherpesvirus,whichisdefinitelyassociatedwithtwomalignantdisorders,Burkitt'slymphomaandnasophary… 相似文献
9.
Li Le Zhuang Feier Zhao Gengsheng Department of Pharmacology Xi′an Medical University Xi′an 《西安交通大学学报(英文版)》1999,(2)
BothtotalginsenosideandtotalflavonesareextractedfromGynostemmapentaphyllum(Thunb)Mak.IthasbeenshownthattotalginsenosideofGynostemmapentaphyllum(Thunb)Mak.Hasmanypharmacologiceffectsinbothanimalandhuman〔1,2〕.Verylittlehasbeenundertakenconcerningthepha… 相似文献
10.
IntroductionSince1980's,Linguisticresearcheshavemadelargeprogressesintheories.In1981ChomskyprovidedGovernmentandBoundingtheory(GB).In1982,BrensnanandKaplanpresentedLexicalFunctionGrammar(LFG).In1985,GazdarpresentedGeneralizedPhraseStructureGrammar(GP… 相似文献
11.
He Chen 《上海交通大学学报(英文版)》1996,(1)
NUCLEAROPERATORSONC(Ω,X)HeChen(DepartmentofAppliedMathematics)AbstractThispaperistodecidethenuclearoperatoronthespaceofvector... 相似文献
12.
IntroductionThenonlinearopticalphenomenaconnectedwiththeintersubbandtransitionsinanasymmetricquantumwel(QW)havebeenextensivel... 相似文献
13.
Nitricoxide(NO)wasshowntobetheendotheliumderivedrelaxingfactorin1987.SincethenNOhasbeenidentifiedasanintercelularmessengerand... 相似文献
14.
Earlyaftergram-negativebacteremia(GNB),defectiveregulationofendotoxin-inducedinflammatoryresponsesoftencul-minatesinprogressi... 相似文献
15.
《西安交通大学学报(英文版)》1999,(2)
Previousstudieshavedemonstratedthatgenitalinfectionwithhigh-risktypesofhumanpapillomavirus(HPV),mostoftenHPV16,arethemostsignificantriskfactorforthedevelopmentofcervicalcancer.HPV16structuralproteinsandnativevirionsonlyexistindifferentiatedsuperficia… 相似文献
16.
Fan Zhaohui Huang Qingheng Zhao Jian Geng Xigang Liu Jianlin Ren Huping Department of Cardiovascular Surgery First Affiliated Hospital of Xi′an Medical University Xi′an 《西安交通大学学报(英文版)》1999,(2)
Homograftaorticvalve(HAV)hasbeenusedinclinicalpracticefor30years.Ithasshowedmanysuperioritiescomparedwithmechanicalvalveandhetero-tissuegrafts.HAVisanaturalvalve.Itshistologicalstructureandmorphologicalfunctionaresimilartonormalphysiologicalsituation… 相似文献
17.
IntroductionThesatutatoristheinnovativepowercyclecom-ponentoftheHumidAirTurbine(HAT)cy-cle[1].Itconsistsofacountercurrentheat... 相似文献
18.
IntroductionTherehavebeenfivemergersandacquisitions(M&As)wavesinthehistoryofeconomicdevel-opment.Economistshavemanyideastoexplaintheincentivesofeachwave.Generally,gettingscaleeconomyisregardedasthemainreasonofthehorizontalmergerwave.Theverticalmerger… 相似文献
19.
Xu Hanqing Song Changsuo Su Baoshan Ren Junfeng Department of Dermatology Second Affiliated Hospital Xi′an Medical University Xi′an 《西安交通大学学报(英文版)》1999,(2)
TheMelanocyte(MC)isatypeofdendriticcellswhichsynthesizesandsecretesmelanin〔1,2〕.Skinmelaninactsasabarriertothesunlightandultravioletray.InordertoexplorethedevelopmentofMCinphylogeneticprocessandtomakeafurtherunderstandingonthefunctionofMCanddiseasesr… 相似文献
20.
《西安交通大学学报(英文版)》1999,(2)
Gonadotropinreleasinghormone(GnRH)regulatesthefunctionofgonadotrophsintheanteriorpituitaryandfacilitatesthesexbehavior.NeuronsreleasingGnRHoriginateintheolfactoryplacode,andmigrateintothebrainduringthedevelopmentanddistributeinseptal-preopticareaandh… 相似文献