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1.
IntroductionInthecourseofneedleservice ,therearethreepairsoffric tion,whicharemadebetweenneedleandfabric ,tongueandgroove,footandtriangle Themainfailureforsewingneedlesisabrasive Therefore ,wearresistanceisoneofthemostimportantfactorsforsewingneedlestoinf…  相似文献   

2.
StudiesoftheSynthesisofBiomarkers(Part15〔1〕)Synthesisof1,3-Eicosanedioland1,3-Octacosanediol*LiTongshuang(DepartmentofChemist...  相似文献   

3.
DepartmentofEngineeringPhysicsTsinghuaUniversityTheDepartmentofEngineeringPhysics(TsinghuaUniversity)istheleadingdepartmentof...  相似文献   

4.
pomoeabatatasLam.belongestothegenusIpomoeaofConvolvulaceae.Itsflowerapparatusismonoecism.Theovaryconsistesoftwoloculesandfourovules.Eachcapsulecontains1to4seeds.Itwasreportedthattheovaryinsomecrossingcombinationshad3loculesand6ovules.Eachcapsulecont…  相似文献   

5.
MolecularBasisofTransferofInducedResistanceinPlants*XuWenlian(徐文联),DongHansong(董汉松)+,PanJun(潘军)+,JiangWuling(蒋五玲),LiuAixin(刘爱...  相似文献   

6.
IntroductionPhotosystemⅡ (PSⅡ )ofhigherplantsisamembraneproteincomplexlocatedinthethylakoidmembrane ,whichconsistsofmorethan 2 0proteins[1] .Itusessolarenergytocarryouttheprimary processesof photosynthesis :chargeseparation ,quinonereduction ,andwateroxidationt…  相似文献   

7.
CircularDichroismAnalysisoftheEffectofMetalicIonsonStructureofColagenMolecules*ZhangXiufang(张秀芳),GongYandao(公衍道),DouJiangang(...  相似文献   

8.
Current Application of Search Engines and Their Developing Trend   总被引:2,自引:0,他引:2  
IntroductionWorldWideWebisoneofthemainservicesonInternet.In1991,thefirstWebsoftwareisworkedoutinordertoaffordasharedtoolofachievementandgroupinformationforitsphysicistsinCERNinSweden .Fromthenon ,thewebtechnologyanditsapplicationsareexpandingatanamazingsp…  相似文献   

9.
Fine Structure of Regenerated Silk Fibroin Solids   总被引:1,自引:0,他引:1  
IntroductionSilkfibroin (Bombyxmori)isthepolymerwithtwokindsofcrystalstructure,silkⅠandsilkⅡ[1,2 ] .ThespaceconformationofsilkⅠtakesontheshapeofcrookedhandle ,theintermediateformbetweenα spiralstructureandβ foldedstructure ,andthatofsilkⅡisanti parallelβ folde…  相似文献   

10.
IntroductionTherearemanyconstitutiveequationsforviscoelasticfluids,amongwhichOldroydB,GiesekusandPTT(PhanThienTanner)modelsarewidelyused.Allthesemodelsareanalogoustothespringdashpotmechanicalsystem.Themathematicalbasisofthesemechanicalmodelsisexplainedb…  相似文献   

11.
I.IntroductionThepurposeoftheessay ,accordingtothewriter,is“todemonstratethatlogic,farfrombeingadry ,pedanticsubject,isaliving ,breathingthing,fullofbeauty,passion ,andtrauma .”ThestoryissetinalawschoolattheuniversityofMinnesota,U .S .A .Theprotagonist,aself -con…  相似文献   

12.
TheStructuralFeatureofEssentiallyDisconnectedCoronoidSystemsChenRongsi(陈荣斯)(CollegeofFinanceandEconomics,FuzhouUniversity,Fuz...  相似文献   

13.
IntroductionChitin ,poly [(1→ 4)NacetylβDglucosamine],isanaturallyabundantpolysaccharideandisoneofthemostimpor tantmaterialsinNature.Coastalareaisamplitudeinourcountryandshrimps ,crabsorothershellfisharecapturedinverylargeamount.Besidestheediblemeat,thereiss…  相似文献   

14.
UltrastructureofHepatopancreasCelsofMacrobrachiumnipponensisWangWeinaWangAnliWeiXuanhuiGuoMingshen(DepartmentofBiology,HebeiU...  相似文献   

15.
Simulation of Weld Depth in A-TIG Welding with Unified Arc-electrode model   总被引:1,自引:0,他引:1  
Itknownthatsmallamountsoffluxonthesurfaceofstainlesssteelcanincreasethedepthofweldpene trationinTIGweldingbyafactorofthree[1] .Thisprocessisreferredtoas”ATIG”orTIGweldingacti vatedbyflux .Therehavebeenthreepublishedphys icalmechanismsthatarepossiblecontri…  相似文献   

16.
0 IntroductionLarge scalesequencingandtheapplicationofexpressedsequencetag(EST)technologyhasledtotheidentificationofhundredsandthousandsofgenomicsequencesfromvariousmicrobestomulticellulareukaryotesandplants[1,2 ] .ExpressionanalysisofeachknowngeneorESTusi…  相似文献   

17.
Astudyofpsychologicalcharacteristicsofmoderndanceandlatindance¥ZhongNing(DepartmentofMusicalEducation,SouthwestChinaNormalUni...  相似文献   

18.
Takingapanoramicviewofthetwistywayaboutthedevel opmentofthenon governmentalenterprisesofscienceandtechnol ogy (NGEST)inourcountry ,wehavenoticedtheindomitablevi talityandirresistiblepoweroftheseenterprises.NGESTworkwell,because,asasystem ,theirfunctioncomes…  相似文献   

19.
ThestudyonthespacedensitydistributionofAg-UltrafineparticlesDengZhaojing,LiangYiping,LiJian,RenHongxiang(DepartmentofPhysics,...  相似文献   

20.
Inthelatetenyears,inChina,withthelandpayingusinginstitutiongoingon,manycitieshavesetthecitylandbasepriceonthebasisofTheoperat...  相似文献   

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