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1.
0 INTRODUCTIONPetroleumisanimportantenergysourceandin dustrialrawmaterial,whichhasimportanteffectsonnationaleconomyandnationaldefense .Atpresent,thecontradictionbetweentheneedforenergyandtheprospectivereservesisveryobviousinthewholepetroleumindustry .Int…  相似文献   

2.
0 INTRODUCTIONItisallknownimportanceofcontrolequationsandadjointequationsinproblemofoptimalcontrol .General ly ,controlequationsandadjointequationsarefoundbyestablishingHamiltonianfunctionaccordingtoPontryagin’smaximumprinciple .Butitisdifficulttoderivet…  相似文献   

3.
0 INTRODUCTIONThemirosotrobotleaguesetupisviewedasanoverallcompleteautonomousframeworkcomposedofthephysicalnavigationalroboticagents,avideocameraover lookingtheplayingfieldconnectedtoacentralizedinterfacecomputer,andthreeclientsasthemindsofthesmall siz…  相似文献   

4.
1 INTRODUCTIONGradientmaterialscombinetheadvantagesofindividualrawmaterialsandhavelargedegreeoffreedomindesign .Sotheyareviewedasanewgenerationofcompositematerialsandhavedrawngreatattention .Manynewpreparationtechnologiesweredeveloped[1 7] .Thepreparationt…  相似文献   

5.
1 INTRODUCTIONInGPSpositioning ,wesometimesneedsomeotherinformationtohelppositioning ,forexample ,navigationincityregion ,navigation  相似文献   

6.
0 INTRODUCTIONPathplanningofrobotmeansthatrobotfindsapaththatisasafestandthemostefficientpathintheworkspaceofrobot.Commonly,therearemanypathsinwhichtherobotcanexecuteappointedwork ,butinfact,therobotmustfindaoptimumpath[1 ] .Usually ,therobotmustselectashor…  相似文献   

7.
1 INTRODUCTIONThestandardchemicalmethodsforthedeter minationofsevenimpuritiesincobaltoxidein cludetwodifferentmethods (AASforCa ,AESforZn ,Ni,Fe ,Cu ,MnandPb) [1] .Onlyafewstudieshavebeenreportedforthedeterminationofimpuritiesinhigh puritycobaltoxide .Kujiraiand…  相似文献   

8.
1 SYNOPSISTOSTATEMONITORINGANDFAULTDIAGNOSISDEVICEOFHOMO AXLECATALYSISCHIEFBLOWERGROUPThispaperfocusesonrecallingaccidentsystem .Be causeitisapartofthewholedevice ,wegiveabriefin troductiontothedevicefirst .ThesaiddeviceisshownasFig .1wherethethickframessh…  相似文献   

9.
0 INTRODUCTIONIntheexperienceformulathestiffnessofrollerbear inghasnothingtodowithrollerdiameter .InthispaperauthorsproverelationshipoftherollerbearingstiffnesswithrollerdiameterfromHzcontactingtheory .Thatcon clusioninexperienceformulaisonlyapproximate…  相似文献   

10.
0 INTRODUCTIONGameplaying ,asthefirstcombinationoftheartifi cialintelligencetechniqueandphysicalgame,promotestheprogressanddevelopmentoftheintelligencetechnol ogyresearchgreatly,andenlargestheeffectoftheintel ligencetechnology .Butbeingthesecondcombinatio…  相似文献   

11.
1 INTRODRCTIONWithregardtothestudyofcrystalgrowthunits,researchersmainlyconcentrateonthedissolutionofsolute ,theformationofgrowthunitsandthetransportationofthecrystalgrowthunittotheinterface ,aswellasthecongruencyofthegrowthunitsontheinter facesofthecry…  相似文献   

12.
0 INTRODUCTIONSignalsingularityandirregularitydiscontinuityfractioncontainmuchimportantinformation ,theyareoneofthemostsignificantcharacteristicsofsig nal[1,2 ] .Infaultdiagnosis,outputsignalcontainsdis continuity ,itismeaningfulfordetectingthedisconti nuity…  相似文献   

13.
0 INTRODUCTIONThetwomaintechniquestopredictthelong termmechanicalbehaviorsandlifetimeforpolymericmaterialsaretime temperatureandstress timesuperposition .Bothexploitthefactthatcreeporrelaxationratesincreasewithincreasingtemperatureandstress.Theircommond…  相似文献   

14.
1 INTRODUCTIONThenickel basedsuperalloysarethemostwidelyusedhigh temperaturestructuralmaterialsformanufacturingaeronauticalengine  相似文献   

15.
OptimalControlofaeroelasticStochasticVibrationofAerocraftWANGSHIZHONGSHENYIZHANGYONGZHUYINFA王世忠,沈毅,张涌,朱银法(Dept.ofAstronautics...  相似文献   

16.
0 INTRODUCTIONAmongmethodsofwear resistanceincreaseofma chinesfrictionunitsmanagementofthisoperationalprop ertyatthedesigningtechnologicalprocessstageofdetailsmanufacturingoccupiesthespecialplace .Anopportunitytopredictbeforehandacertainlevelwear resist…  相似文献   

17.
0 INTRODUCTIONColloidchemistryisthesubjectsclosetoengi neeringprojectsandeasytobeintersectedwithothersubjects .Modernindustryandagricultureprovidecol loidchemistrywithagoodfield (forexamplepetro chemicalindustry ,painting ,printinganddying ,mineralseparatin…  相似文献   

18.
0 INTRODUCTIONKoreancharactershavethebothcharacteristicsofChinesecharactersandwesternwords ,they ,likeChinesecharacters ,arearrangedin 2 dimensionalregion ,andontheotherhand ,likewesternwords ,thebasiclogiccom ponentsofthemaregraphemes .Koreancharactersgener …  相似文献   

19.
0 INTRODUCTIONROTGDisanewtypeoflessteethdifferenceplane tarygeardrive .Itsfeaturesincludesmallvolume ,com pactstructure ,highloadcapacity ,hightransmissioneffi ciency .Therefore ,itisexpectedtobewidelyappliedinengineeringfields .However,designmethodofROTGDisc…  相似文献   

20.
1 INTRODUCTIONThechiralnatureoflivingsystemshasev identimplicationsonbiologicallyactivecom poundsinteractingwiththem .Onamolecularlevel,chiralityrepresentsanintrinsicpropertyofbuildingsubstancesoflife ,suchasaminoacidsandsugaretc.Asaresult,thedifferentena…  相似文献   

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