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1.
1 ModelandBackgroundInmicrobebiochemicalreactionstherearecomplexmetabolismprocessesandusuallymanypopulations[1].Amongthesepopulationstheremaybearelationthatthemetabolateinthefirstprocessconstructthenutrimentofthesecondprocess.Nowweconsideronlytwoimporta… 相似文献
2.
Zhang Rongye 《应用数学和力学(英文版)》2000,(7)
IntroductionTimeandspaceisabasicforminwhichthemattersexist.Allmattersandthingsintheworldoccur,exist,move ,developandvariateinthespacetime.Allprocessesinthematerialworldaretheprocessesofthemotion ,developmentandvariationofmatters.Tostudytheobjectsthatoccu… 相似文献
3.
张荣业 《应用数学和力学(英文版)》2001,(4)
IntroductionLagrangianmechanicsisanimportantpartofanalyticalmechanics.ItisageneralizationofNewtonianmechanics.Newtonianmechanicsisestablishedontheconfigurationspace—Riemannianmanifold .Lagrangianmechanicsisestablishedonitstangentbundle ,Hamiltonianmecha… 相似文献
4.
IntroductionAsexperimentalresearchshows[1]:Meanwhilebladepositivecurvingreducesthecrosswisepressuregradientintipclearance,resultinginthedecreaseoftherelativeleakagethroughtipclearance ,themixinglossgeneratedfromtheinteractionofthetipleakageandthecrosswi… 相似文献
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汤昕燕 《应用数学和力学(英文版)》2000,21(10):1169-1176
IntroductionLikethecoplanarforcesystem ,anygeneralspaceforcesystemFi(i =1 ,2 ,… ,n)canbereducedtoapointOandreplacedbyaprincipalvectorRandaprincipalmomentL0 .Sothatthevector_typenecessaryandsufficientconditionsforequilibriumofthegivenforcesystemareR =0 , L0 =0 . (1 )… 相似文献
6.
On the isometric isomorphism of probabilistic metric spaces 总被引:1,自引:0,他引:1
刘明学 《应用数学和力学(英文版)》2002,23(5):614-617
IntroductionTherearetwokindsofisometricisomorphisminprobabilisticmetricspacetheory (see[1 -9] ) .ThefirstisthataPMspace (E ,F)isisometricallyisomorphictoanotherPMspace(E′,F′) ,andthesecondisthataPMspaces(E ,F)isisometricallyisomorphictoageneratingspaceofquasi_met… 相似文献
7.
IntroductionThin_walledshellhasmanyappliancesinengineeringsuchasundergroundpipe,outershellofsubmarinewhichareusuallysubjectedtoexternalpressure .Whendesigningthosestructuresweshouldconsidernotonlythestrengthprobleminservice ,butalsothebucklingproblemun… 相似文献
8.
The loss of stability of laminar flow in open channel and the mechanism of sand ripple formation 总被引:2,自引:0,他引:2
IntroductionDuringthetimeofbedsurfacesedimenttransportation,sedimentparticlesofbedloadmakethecollectivemotionofvariousdifferentformsontheriverbedsurface,thustheformofbedsurfacechangesconstantly .Thiskindofcollectivemotionofsedimentparticlesonthebedsurf… 相似文献
9.
On equation of discrete solid particles' motion in arbitrary flow field and its properties 总被引:1,自引:0,他引:1
IntroductionSolidliquidtwophaseflowliesextensivelyinmodernindustryandengineeringpractice.Thetechnologiesofcontrollingofsolidliquidtwophaseflowareusuallyverycriticalinmanyindustrialequipment,manufacturingprocessesanddesignsofengineering.Asanimportantth… 相似文献
10.
IntroductionDuringthemid_1 980’s,atomographicimagingtechniquesuitedtoindustrialprocessdetection ,ProcessTomography[1],wasrapidlydevelopedintheUK ,USA ,etc .withsuccessfulapplicationsofCTtechniquetomedicaldiagnosis .Inparticular,asanewmemberwithinthefamilyofthe… 相似文献
11.
IntroductionAsRef.[1 ]pointedout,inaturbinecascadewithtipclearance,mostofthesingularpointsandseparationlines,duetotheeffectoftheleakageflow ,arelocatedattheupperhalfspan(especiallyinitssuctionsurfacecorner) ,whichconsequentlyleadstoworsetheaerodynamiccharac… 相似文献
12.
丁灯 《应用数学和力学(英文版)》2000,21(9):1079-1090
IntroductionThestochasticoptimalcontrolproblemsofreflecteddiffusionprocesseshasbeenconsideredbysomemathematicians,forinstance ,P .L .Lionsin [1 ] ,andJ.L .MenaldiandM .Robinin[2 ] .Inthispaper,wewillconsiderastochasticoptimalcontrolproblemofreflecteddiffusionswit… 相似文献
13.
Thedifferentialquadraturemethod(DQM)proposedbyR.Bellman[1,2]hasbeensuccessfullyemployedinnumericalcomputationsofproblemsinengineeringandphysicalscience.BecausetheinformationonallgridpointsisusedtofitthederivativesatgridpointsintheDQM,itisenoughtoobta… 相似文献
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Thethreshold_crossingofstochasticprocessesisaproblemoftenencounteredinthestudyofvariousphysicalphenomena .Theterm ,threshold_crossing ,isusedtoindicateacertainfixedvaluebeingcrossedbytheoscillatingrealizationζ(1) (t)ofastochasticprocessζ(t) ,asshownbythetypi… 相似文献
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IntroductionIn 1 996,Khamsi[1]establishedthehyperconvexversionofthefamousFan_KKMprincipleinhyperconvexspace .Yuan[2 ,3]obtainsomecharacterizationofKKMprincipleinhyperconvexspaces,andasapplicationsoftheirresults,somefixedpointtheoremsandmatchingtheoremsforopena… 相似文献
16.
云天铨 《应用数学和力学(英文版)》2001,22(10):1132-1139
IntroductionManystudieshavebeendoneoncontractivemappings,e .g .,Rhoades[1]madeacomparisonofvariousdefinitions (morethan 1 0 0typesvariedfrom 2 5basictypes)ofcontractivemappingoncompletemetricspacein 1 977.Anduptonow ,suchstudyisstillgoingon ,e .g .,[2 ] .Inthispaper,these… 相似文献
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Inrecentyears,applicationsofquaternionmatricesarebecomingmoreandmoreimportantandextensiveinrigidmechanics,quantummechanics,controltheoryandhelicaltechnology[1~3].Withtherapiddevelopmentoftheabovedisciplines,itisgettingmoreandmorenecessaryforustofurth… 相似文献
18.
IntroductionSystemidentificationisakindofnewmethodforbuildingmathematicalmodel,themethodhasbeenwidelyappliedinengineering.Thebackgroundisindustrialprocessautomaticcontrol.Withoutanyknowledgeaboutacomplexindustryprocessinnermechanism,usingtheinputandout… 相似文献
19.
Buckling and Postbuckling of Laminated Thin Cylindrical Shells under Hygrothermal Environments 总被引:1,自引:0,他引:1
沈惠申 《应用数学和力学(英文版)》2001,22(3):270-281
IntroductionInrecentyears,fiber_reinforcedcompositelaminatedshellstructuresarewidelyusedintheaerospace ,marineindustry ,automobileindustryandotherengineeringapplications.Duringtheoperationallife ,thevarianceoftemperatureandmoisturereducestheelasticmoduli… 相似文献
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杨文熊 《应用数学和力学(英文版)》2000,21(3):347-354
IntroductionInthepaper[1],theauthorhasestablishedthescalarproductoftheunitvectoronitspowers,whichobtainedtheconvergentsumofLaurent’sseriesaboutaparticlemovingwithhighvelocitylessthanornearthatoflight.Underthissituationwemayexposecalculatingvariousparame… 相似文献