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1.
熊传溪 《武汉理工大学学报(材料科学英文版)》2002,(4)
1 IntroductionFerroelectricsceramic/polymercompositeswithdif ferentconnectivitypatternshaveattractedrecentresearchinterestsbecauseoftheirpotentialuseashigh energystoragecapacitordielectricsandastransducersandsen sorsinsmartsystems[1 3 ] .Oneoftheattractive… 相似文献
2.
戴红莲 《武汉理工大学学报(材料科学英文版)》2002,17(3)
1 IntroductionCalciumphosphatematerialsaresimilarincomposi tionsandstructuretobonemineralsandhavegoodbio compatibilityandosteoconducitivityasbonereplacementandaugmentations[1] .Atpresent,calciumphosphatearti ficialbonematerialsaremainlyceramicsandglasses ,… 相似文献
3.
0 INTRODUCTIONWiththedevelopmentofthespacescienceandtechnology ,hybridceramicballbearingslubricatedwithsolidarewidelyemployed[1] .Solidlubricantsunlikeliquidlubricants ,cannotformacomplete ,con tinuousseparatingfilmbetweenmatingsurfaces ,andasaresultdirecto… 相似文献
4.
0 IntroductionY TZP(Y2 O3 stabilizedZrO2 polycrystal)isakindofceramicmaterialswithexcellentstrengthandfracturetoughnessatroomtemperatureduetothestress inducedmartensitictransformationofthemetastabletetragonalphasetothestablemonoclinicphase[1,2 ].Ithasbeenre p… 相似文献
5.
Recently ,ceramicmaterialshavebeengivenalotofattentionascandidatesforimplantmate rialssincetheypossesscertainhighlydesirablecharacteristicsforsomeclinicalapplicationsofhu manskeletonsubstitution ,heartvalvesrenewing ,dentalcrownrepairing .Ideally ,thephysi… 相似文献
6.
TribologicalBehaviourofGCr15SteeltoSi_3N_4CeramicLubricatedbyBiphaseLiguidLubricantsSONGBaoyu;WANGLiqin;QIYulin(宋宝玉),(王黎钦),(齐毓... 相似文献
7.
In neutral solution kaolinite can behydrothermally synthesized with alumina gel silicate by dissolving alumina gel inoxalic acid before it is mixed with silicate. The addition of oxalic acid is beneficial tothe formation of kaolinite through changing the coordination number of aluminium from fourto six. 《中南工业大学学报(英文版)》2000,7(1):34-36
Synthetickaolinitehasadvantagesinapplicationsofsomefieldssuchaspapermakingandfineceramicfabri cationwhichrequirekaolinitewithhighwhitedegree .Thestructuresandnaturesofrawmaterials,andreactioncon ditionssuchaspH ,temperature ,themolarratioofSitoAlandaddit… 相似文献
8.
Duringthelast10years,considerablework[1,2]hasbeenperformedandreviewedonpolysilanesynthesis.Thesepolymersappearveryinterestingasresistsformicrolithography,theprecursorsforceramicsorevenasconductingmaterials.TheyaregenerallysynthesizedbyWurtztypecouplingofs… 相似文献
9.
Experiment and mechanism of vibration liquefaction and compacting of saturated bulk solid 总被引:4,自引:3,他引:1
Liquefactionofsaturatedbulksolid (e .g .brokenrocks ,sandysoilsandtailings,etc)isaphenomenonthatbulksolidshowssimilarliquidcharacterandlosescarryingcapacitycompletelyundertheactionofdynamicalload[1,2 ] .Vibrationcanpartlyorwhollycausebulksolidtobreak .Sincevib… 相似文献
10.
0 INTRODUCTIONItisacommonsensethatmanyengineeringstruc turesmadeofheterogeneousaggregatematerialssuchasconcrete ,rocks ,ceramics ,andvariousparticle dispersedorfiberreinforcedcompositesexperienceanincreaseinbrittlenessandadecreaseinstrengthastheirsizeinc… 相似文献
11.
0 INTRODUCTIONMonitoringofmachiningprocess ,suchasmoni toringchatterandtoolwearinmilling ,isclassicprob lembasedonsignalprocessing .Signals (suchasvi bration ,forceandacousticemission)collectedbythesensorsaretypicallyaffectedbytheprocessdefects ,processworki… 相似文献
12.
0 INTRODUCTIONItiswellknownthatheterogeneousquasi brittleag gregatematerialssuchasconcrete ,rocks ,ceramics ,andvariousparticle dispersedorfiberreinforcedcompositesexperienceanincreaseinfracturetoughnessastheirsizeincreases .Anessentialcharacteristicofquas… 相似文献
13.
β cyclodextrin ( β CD)hasmanychiralcar bonatomsandspecialcavitystructure ,itcannotonlybeusedtoseparatearomaticcompounds,butalsoenantiomers.Thetremendouspotentialofcy clodextrins,ortheirderivativesforenantiomersseparationwasdescribed[1,2 ] .Becauseofhighmelting… 相似文献
14.
冯玉杰 《哈尔滨工业大学学报(英文版)》2002,9(4)
0 INTRODUCTIONAsitbecomesincreasinglyclearthatthoseconve nientenergysources ,suchasoilandgas,cannotsup porttheworldforever .Manhasbeguntoturntofindthealternatives[1] .Withthegrowingconcernsonthegreenhouseeffectin 1990s ,hydrogenhasbeenrecog nizedasanimportantf… 相似文献
15.
Thetheoreticalstudyofalargescalesystemisaveryimportantprobleminsystemsscience.Recently,accordingtoQianXuesen’sandJ.S.Dyer’sthoughts(seerefs.[1,2])oflargescalesystems,wepresentanewoptimalexperimentaltheory(seerefs.[3—11])whichcombinesmathematicalmodelswithexper… 相似文献
16.
《北京建筑工程学院学报》2002,(4)
TheoreticalDiscussioninTeachingtheOutlineofDengXiaoPingTheory WangXinao(1)……………………TalkSomethingAboutDengXiao - ping’sThoughtofAccom 相似文献
17.
Qualityandefficientofsoilandotherroad buildingmaterialscompactiondependsonnumberoffactors (typeandintensityofinfluence ,propertiesofcompactionmate rials ,technologicalschemeandconditionofcompaction) .Butthemainandmostimportantfactorisinteractionbe tweensur… 相似文献
18.
0 INTRODUCTIONRobotsoccerisanewkindofinternationalhigh techcompetitiondevelopedrapidlyinrecentyears .Asamark ingandchallengingsubjectofAIandRobotics ,itnotonlyprovidesanidealtest bedfortheresearchofhightech nologiessuchasmulti agentcooperation ,butalsopres… 相似文献
19.
1 INTRODUCTIONTheestimationofconvergencevelocityand parameterizationof geneticalgorithms(GA)aretwoimportanttheoreticproblems,buttherearefewstricttheoreticresults[1] .T .B ck[2 ,3] obtainedtheestimationofconver gencevelocityofsimplifiedGAbyapplyingor derstatisti… 相似文献
20.
0 INTRODUCTIONTheoperationofthetrafficmanagementcenterofexpresshighwayinfrastructuresisessentiallybasedontheavailabilityofinformation providedbytheavailabilityofinformationprovidedbytheimplement eddevicessuchasloopdetectors ,communicationde vices,hardwa… 相似文献