共查询到20条相似文献,搜索用时 15 毫秒
1.
Tang Wei Wang Qijun College of Physical Education Southwest China Normal University Chongqing Southwest Agricultural University Chongqing 《西南师范大学学报(自然科学版)》1999,(5)
PrefaceAgaricusblazeiMurrillbelongstoAgaricalesAgaricaceacAgaricalesandisakindofbothedibleandmedicinalfungiandcontainsrichbiologicalactivitycomponents[1,2].Atpresent,notmuchresearchwasfocusedonitsimmunologicalactivityabroad.Wehavenotfoundreportsofsuc… 相似文献
2.
Deng Zhaojing Zhao Nanrong Liu Cunye Li Jian Department of Physics Southwest China Normal University Chongqing 《西南师范大学学报(自然科学版)》1999,(5)
TheevolutionprocessofAgUFPAgUFPareproducedbysputteringtechnique,andthespecificprocess[1,2]canbedescribedasbelow.Firstly,theAgparticles(atomsorfragments)sputteringfromtheAgtargetdepositontheamorphouscarbonfilmafterthequickdiffusion.Andthenthesedime… 相似文献
3.
Biosynthesis of Polyhydroxyalkanoates Consisting of Short-chain-length Monomers and Medium-chain-length Monomers by Pseudomonas YS1 总被引:3,自引:0,他引:3
IntroductionPolyhydroxyalkanoates(PHAs)areafamilyofbiopolyestersynthesizedbymanybacteria[1,2 ] .AmongPHAs ,polyhydroxybutyrateorPHBisthemostcommonmember[3] .AttemptshavebeenmadetodevelopcommercialfermentationprocessesfortheproductionofPHAs[4 7] .Biopol,acommerci… 相似文献
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Production of Medium Chain Length Polyhydroxyalkanoates by Pseudomonas mendocina 0806 from Related and Unrelated Carbon Sources 总被引:1,自引:0,他引:1
IntroductionPolyhydroxyalkanoates (PHAs)areafamilyofintracellularbiopolymerssynthesizedbymanybacteriaascarbonandenergystoragecompounds[1,2 ] .AttemptshavebeenmadetoproducesomeofthePHAsforapplicationasbiodegradableplastics[3 5] .PHAscanbebroadlydividedintotwog… 相似文献
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Fatty acidbindingproteins (FABPs)arenon enzymaticcytoplasmicproteinsoflowmolecularweight ( 1 4~ 1 5kD)whichcanbefoundinawidevarietyofmammaliantissues[1] .Atpresent,theFABPfamilyiscomposedofatleastninedistincttypesofFABP ,eachtypeshowingacharacteristicpatternofti… 相似文献
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Gituru Wahiti Robe rt Wang Qing |feng Wang Yong Guo You |hao Colleg e of Life Sciences Wuhan University Wuhan Hubei China 《武汉大学学报:自然科学英文版》2003,8(1)
0 IntroductionAlismataceaeisacosmopolitanfamilythatconsistsof 11generaandapproximately 95species[1] .Allthespeciesinthisfamilyareaquaticorsemi aquaticwiththemajorityoccurringintheNewWorld .ThegenusCaldesiaisrestrictedtotheOldWorldfromAfricaandMadagascarandS… 相似文献
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《暨南大学学报(自然科学与医学版)》1998,(6)
aderA.(AIDS-HilfeStutgarte.v.70193Stutgart)EineschweredurchAnsteckungübertragbareSchwchungdeskrpereigenenAbwehrsystemsWirklre... 相似文献
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IntroductionInrecentyears,theLatticeBoltzmann(LB)methodhasattractedmuchattentionasanovelalternativetotraditionalmethodsfornumericallysolvingtheNSequations[1].ThismethodoriginatedfromaBooleanmodelknownasLatticeGasAutomata(LGA)[2].ThestandardLGAmodelimposes,f… 相似文献
10.
IntroductionPhasetransitionaccompaniessignificantchangeinmechanicalpropertiesofpolymer.Alargedropofmodulusandenhancedmi cro Brownianmotiononheatingthroughglasstransitionormeltingtemperaturecanbeusedinthemoleculardesignofshapememorypolyurethane (SMPU ) .A… 相似文献
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朱诚 《东北大学学报(自然科学版)》2001,22(2):236
美国《剑桥科学文摘》三大分支之一的材料信息系统 (CarmbridgeScientificAbstracts/MaterialsInformation,简称CSA/MI) ,共分五个数据库 :《金属文摘》(METADEX/MetalsAbstracts,简称MDX) ;《工程材料文摘》(EngineeringMaterialsAbstracts,简称EMA) ;《陶瓷文摘》(CeramicsAbstracts) ;《腐蚀文摘》(CorrosionAbstracts) ;《铝工业文摘》(AluminiumIndustryAbs… 相似文献
12.
The Beetles of Tribe Platyopini in China and Description of Two New Species(Coleoptera:Tenebrionidae) 总被引:1,自引:0,他引:1
ThetribePlatyopiniisapeculiarinsectgroup ,whichisdistributedinEastAsia ,CentralAsiaandNorthAfrica .Thesebeetlesaretypicalinsectsindesert .Uptodate ,35speciesof 11generahavebeenreportedallovertheworld ,amongwhich ,4speciesof 2 genera (about 11.4 %ofthetotal)areknownf… 相似文献
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IntroductionAnautomaticcontrolsystemisnecessaryforthesafeoperationoftheNHR200whichistobeconstructedinChina.Inordertodesignandsimulatethecontrolsystem,adynamicmodelisneeded.Atpresent,programmingcodeRETRAN02isusedfortransientanalysisoftheNHR200,butit… 相似文献
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IntroductionPolyhydroxyalkanoates (PHAs)areafamilyofintracellularbiopolymerssynthesizedbymanybacteriaasintracellularcarbonandenergystoragecompounds[1] .PHAshaveawiderangeofphysicalpropertiesrangingfrombrittletoflexibletoelastic ,dependingontheirmonomerstr… 相似文献
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Thesilkwormexpressionsystemisawell knowneconomicalwayofoverproducingrecom binantprotein .Inthisletter ,thecDNAofamutantofsinglechainurokinase typeplasminogenactivator(rscu PA) gene ,mscu PA(K1 5 1E ,R1 5 4G) ,wasreconstructedtoincludethenaturalurokinase(u PAorUK)sig… 相似文献
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IntroductionTumorassociatedantigen 17 1Aisbroadlydistributedinnormalepithelialtissuesandisalsofoundinvarioustypesofcarcinoma[1] .17 1Aantigenisolatedfromseveralhumancolorectalcarcinomacelllinesisa glycoproteincontainingN linkedglycanswitharelativemolecularm… 相似文献
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TheoreticalbackgroundThe 1970switnessedanotherinnovationinlanguageteachingmethodology .Inthisdecade ,manylanguagemethodologistsandresearchersstartedtoconcentrateonthelearningtasksthatlearnerswereinvolvedin .Amongthem .theBritishappliedlinguistR .Allwrightan… 相似文献
18.
《大连理工大学学报》1998,(Z1)
AnIntroductiontoDalianUniversityofTechnologyAlumniAssociationOverseas(DUTAAO)TheDUTAAO,anon-profitorganization,wasfoundedinJa... 相似文献
19.
《南京大学学报(自然科学版)》1996,(4)
ANEWSHAPE-ADAPTIVETHINNINGALGORITHMZhuXuefang(LabofModernAcousticsandInstituteofAcoustics,NanjingUniversity,210093,Nanjing,P... 相似文献
20.
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