共查询到20条相似文献,搜索用时 15 毫秒
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IntroductionThemodeaccelerationmethodinrealmodetheoryhastheadvantageofgoodconvergenceovermodedisplacementapproaches[1,2].Motivatedbysimilarconsiderations,someresearchershaveestablishedacomplexmodevelocitymethod(CMVMorGVM)instatespace[3,4].Usingthecomplexmod… 相似文献
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IntroductionMechanicalalloying(MA)ofelementalpowdermixtureandmechanicalmilling (MM )ofinter metallicpowderhavebeensuccessfullyemployedinrecentyearsasamethodforsynthesizingamor phousandnano crystallinealloys[1~ 3 ] .XAFSmethodwassuccessfullyusedforunderstandi… 相似文献
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Hu Debin Li Nianbing Zhang Shengtao Han Lianyi College of Chemistry Chemical Engineering Chongqing University College of Chemistry Chemical Engineering Southwest China Normal University 《西南师范大学学报(自然科学版)》1999,(5)
Manganesedioxidefordrybatteryuseismainlypreparedbyelectrolyzingmanganesesulfate.ElectrolyticMnO2ispreparedfromMnSO4insulfuricacidsolution,inwhichelectrochemicalprincipleisutilized.MnSO4ismadethroughthatmanganesesparisimmersedinsulfuricacid.Inthepas… 相似文献
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化学交联型体温形状记忆聚氨酯研究 总被引:1,自引:0,他引:1
Shapememorypolyurethane (SMPU)isanovelfunctionalpolymermaterial.Inrecentre search ,bodytemperatureSMPUisreceivingmoreandmorespecialinteresting .Bodytempera tureSMPUbelongstosegmentedcopolymer ,whichcanbedeformedintoanyfreeshapeabovetheglasstransitiontemper… 相似文献
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Tang Xianghong He Zhenhua Deparment of Educational Technology Southwest China Normal University Chongqing Deparment of Information Engineering Geophysics Chengdu Institute of Technology Chengdu 《西南师范大学学报(自然科学版)》1999,(5)
Imagecompressiontechniquesaredividedintotwomaincatalogues:transformcodings(DCT,JPEG,FFT,Wavelet)andnontransformcodings(PCM,DPCM).ThePCMandDPCMmethodsenableustocompressthedatawithouttransforming.Theybasedonthesignal○smodel.Compressioncanbeachievedbytr… 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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《暨南大学学报(自然科学与医学版)》1998,(6)
UnschuldP.U.(InstitutfürGeschichtederMedizin.Ludwig-MaximilianUniversitt,80336München)DieKonfrontationderwestlichenIndustriel... 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
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PeriodicOrbitsonAF┐SymplecticManifolds*MaRenyi(马仁义)DepartmentofAppliedMathematics,TsinghuaUniversity,Beijing100084AbstractThe... 相似文献
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<正>Esterification of Aspen Wood with Maleic Anhydride$罗马尼亚布拉索夫大学木材工业系1MatsudaH.Preparationofesterifiedwoodsbearingcarboxylgroups.WodScienceandTechnology,1987,21:75~882MatsudaH,UedaM,MoriH.Preparationandcroslinkingofoligoest.... 相似文献
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FactorizationoftheTodaHierarchyandPoissonStructureforSymplecticMaps*ZengYunbo(曾云波)DepartmentofAppliedMathematics,TsinghuaUniv... 相似文献
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0 IntroductionMP 1 1isobtainedfrompepsindigestionofcytochromec .Itretainsaminoacidresidues 1 1 2 1ofcytochromec .Itisconsideredagoodmodelofc typehemeenzymesandperoxidases .Sofar,somemethodshavebeenusedtoimmobilizeMP 1 1onelectrodes ,suchasmixingupwithgraphitepast… 相似文献
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ANoteOnM_MatricesYangShangjunZhangXiaodong(DeparmentofMathematicsAnhuiUniversityHefei230039)AbstractInthispaperweprovesomecon... 相似文献
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Jakub Wiener 《东华大学学报(英文版)》2002,19(3)
Manyofimportantphysicalandchemicalprocessesarebasedonthecapillarity—spontaneouspenetrationofliquidintotheporoussystems.Capillaryprinciplesareusedinvariousbranches.Everydaywecomeintocontactwithpracticalexamplesofwickingprocesses.Mostoftheseprocessesare… 相似文献
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OntheUniquenesofMeromorphicFunctionsFangMingliang①QiuHuiling②AbstractInthispaper,theuniquenessofmeromorphicfunctionswasstudi... 相似文献
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SYNTHESIS AND PROPERTIES OF POLYURETHANE MODIFIED WITH AMINOETHYLAMINOPROPYL POLY(DIMETHYL SILOXANE) 总被引:8,自引:0,他引:8
《南京大学学报(自然科学版)》1999,(5)
Multiphasesegmentedsiloxaneurethanecopolymershavebeenreportedintheliteraturewhichwerepreparedbyprimaryorsecondaryamineterminatedsiloxaneoligomerswithdiisocyanatesanddiols[1~6].However,becauseoftheintroductionofPDMSintothemainchainofpolyurethane,th… 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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《暨南大学学报(自然科学与医学版)》1998,(6)
MoelingK.PavlovicJ.SchultzJ.NawrathM.PetrzlkaD.(InstituteofMedicalVirologyoftheUniversityofzurich,Glorlastrase30,CH-8028Zurlc... 相似文献