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《南京大学学报(自然科学版)》1999,(5)
Themajorfunctionofsuperoxidedismutase(SOD)istocatalyzethedismutationofsuperoxideanion(·O-2)andcontrolintracellularandextracellularconcentrationof·O-2.·O-2isthemediatorofmanydiseases.AlthoughSODhasbeenconsideredtobeappliedasapharmaceuticalformanyyear… 相似文献
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1 HigherOrderHarmonicsHigherorderharmonics(HOH)arefrequentlyusedforreactorphysicsanalysis.Forexample,HOHcanbeusedtoreconstructthefullcorefluxdistributionfromlimitedneutronmeasurementdatausingtheharmonicssynthesismethod(HSM)[1].HSMproposestoexpressthe… 相似文献
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Influence of the Surfactants on Microstructure and the Properties of Wet Coagulation Polyurethane Film. 总被引:2,自引:0,他引:2
IntroductionWhenthehomogeneoussolutionbecomesthermodynamicallyunstable (e g ,bytheintroductionofanonsolvent) ,thesolutionseparatesintotwoliquidphasesofdifferentcompositiontolowerthefreeenergyofthemixture Thisprocessisresponsibleforthegenerationoftheporou… 相似文献
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Neural network model for the constitutive relations of soil 总被引:1,自引:0,他引:1
Zeng Jing Wang J ing |tao School of Civil Engineering Mechanics Huazhong University of Science Technology Wuhan Hubei China 《武汉大学学报:自然科学英文版》2003,8(1):86-90
0 IntroductionAccordingtothedifferenttheoriesappliedintheestablishingconstitutivemodel,theconstitutivemodelisgenerallygroupedintotwocategories :elasticmodelandelasto plasticmodel.Asoneoftheelasticmodels,Duncan Chang’smodel[1] iswidelyappliedinengineeringpr… 相似文献
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Wu Xinyu 《南京邮电大学学报(自然科学版)》1994,(4)
ApplicationofCellularNeuralNetworkstoMapRecognition(Ⅰ)¥WuXinyu(DepartmentofBasicCources,NanjingInstituteofPostsandTelecommuni... 相似文献
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Sound,Voice,Noise用法点滴Sound是个普通用词,其涵义和使用范围较广。作名词用,表示“声音”,可泛指任何用耳朵听得到的“声音”。如:thesoundofrunningwater流水声thesoundofvoices说话声Sound作... 相似文献
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IntroductionTraditionale commerceapplicationsystemisimplementedbyusingHTML ,JavaScriptandASP ,PHP .Becausethebusinesslogicismixedwiththesourcecode,thescriptsarecomplexandunreadable .Thismethodleavessomuchconveniencetoprogram mersbutalsomakessystemmaintain… 相似文献
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Yang Yan He Chu Liao Ya |li Cao Yang Qin Qian |qing .School of Electronic Informatio n Wuhan University Wuhan Hubei China .The State Key Laboratory of Cartographical Remote Sensing Information Engineering Wuhan Univer sity Wuhan Hubei China 《武汉大学学报:自然科学英文版》2003,8(1):74-76
0 IntroductionLiftingschemeasintroducedbyW .Sweldens[1] in 1996 ,isanewwayofconstructingwavelettransformthatnotnecessarilybasedontranslatesanddilatesofonefunction .LiftingallowstheconstructionofwaveletsentirelyinthespatialdomainwithoutmakinguseoftheFouriertr… 相似文献
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《河北大学学报(自然科学版)》1996,(4)
MicrobialDiversityandResourcesLiuZhiheng(InstituteofMicrobioly,ChineseAcademyofSciences,P.R.C.)MichaelGoodfelow(Universityof... 相似文献
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IntroductionInanenterprise,theshopfloorisoneofthemostimportantdepartmentsdirectlyinfluencingthemanufacturingeficiency.Shopf... 相似文献
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IntroductionSeveralmodelshavebeendevelopedtoestimatetheeffectiveelasticpropertiesofmaterialswithinclusions,e.g.,holesandmicrocracks.Thefamousmicromechanicalmodelsincludethecompositecylindermodel(CCM)byHashin[1],theselfconsistentmethodproposedindependently… 相似文献
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Li Kunpei Sun Min Yan Yinhong School of Life Science Southwest Normal University Chongqing Chongqing Institute of Crop Chongqing 《西南师范大学学报(自然科学版)》1999,(5)
pomoeabatatasLam.belongestothegenusIpomoeaofConvolvulaceae.Itsflowerapparatusismonoecism.Theovaryconsistesoftwoloculesandfourovules.Eachcapsulecontains1to4seeds.Itwasreportedthattheovaryinsomecrossingcombinationshad3loculesand6ovules.Eachcapsulecont… 相似文献
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IntroductionThemainmissionofpowerplantsimulatorsistoprovideinvaluabletrainingtoplantoperationalpersonnel.Todaythesimulatorshavebeenwidelyusedandtheirtrainingvalueshavebeenwellrecognized.Overthepastthreedecades,thesimulatorshavegonethroughseveralmajor… 相似文献
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