简介:Canada'sHuskyEnergyInc.hasdiscoveredasignificantdeepwatergasreservewithitsChinesepartner,ChinaNationalOffshoreOilCorp.(CNOOC),intheSouthChinaSeanearHongKong.Basedonpreliminaryanalysisofdrillingresults,thediscoverycouldcontainapotentialrecoverableresourceoffourtosixtrillioncubicfeet(120billionto180billioncubicmeters)ofnaturalgas,theenergycompanysaidinastatement.'WeareverypleasedwithourexplorationresultsandthisdiscoveryconfirmsourconfidenceinthesignificantundiscoveredhydrocarbonpotentialintheSouthChinaSea,'JohnLau,HuskyCEOandpresidentsaid.'WelookforwardtoevaluatingthisdiscoveryandcontinuingourexplorationeffortsinChina.'
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简介:Thcrearecloseinnerlinksbetweenthetimeandspatialdistributionsofpolygeneticcompoundlarge/superlargeU-depositsanddiwatectonicinterfaces.ixwatectonicinterfacesaredividedintotwotypes,namely,oneinspaceandtheotherintimc.Thcfollowin8tcctonicintcrfacesallbclongtodiwaspatialtyPc:l)Gcotcctonicunconformityintcr
简介:HostedbyMinistryofCultureandGuangzhouMunicipalPeople'sGovernment,GuangzhouBureauofCultureorganizedalistoffirst-classsinginganddancingandacrobaticplaysinGuangzhouinSeptember2006.Amongtheseplays,largeoriginalacrobaticplayPilgrimagetotheWestofGuangzhouAcrobaticTroupewentonthestageduringOctober12thandNovember5th.
简介:Inthispaper,acomparisonamongthesevenlargemeandersoftheKuroshioismadeinordertoprobeintotheirsimilarityanddifferences.Themajorresultsaredescribedasfollows.1.Althoughthethreephasesforthesevenlargemeanderssuchastheirformations,maturity,aswellasdeclineareverysimilartooneanother,eachmeanderhasitsowntrivialdifferenceindetail.2.Thepathsofthefirstsixlargemeandersinthematurephasemaybeclassifiedintotentypes:U1,V1,U2,V2,U1’,V1’,U2’,V2’,φandW.3.Thesevenlargemeandersmaybegroupedintotwopatterns,i.e.,patternⅠandpatternⅡ.PatternⅠincludesthefirstandthefourthlargemeanders,andpatternⅡincludestherestoftheabovemeanders.4.FourstandardsforidentifyingthelargemeandersoftheKuroshioareputforward.
简介:Sequentialsimulationoflargecomplexphysicalsystemsisoftenregardedasacomputationallyexpensivetask.Inordertospeed-upcomplexdiscrete-eventsimulations,theparadigmofParallelandDistributedDiscreteEventSimulation(PDES)hasbeenintroducedsincethelate70s.Inthispaperwe'llanalyzetheapplicabilityofPDEStothemodelingandanalysisoflargecomputersystem;suchsystemsareincreasinglycommonintheareaofHighEnergyandNuclearPhysics,becausemanymodernexperimentsmakeuseoflarge"computefarms",Somefeasibilitytestshavebeenperformedonaprototypedistributedsiumulator.
简介:LargeProjectstoBeConstructedintheNext15 YearsTheNanning-KunmingElectricRailwayA898.7-kilometer-longrailwaylineapprovedforcons...
简介:Thecoolingandheatingloaddistributionoflargeareaair-conditionedroomsuchas'open'offices,shoppingmallsandwaitingroomsisusuallyassumedtobeeveninairconditioningsystemdesign.However,itisnotthecaseinreality,andalowefficientairconditioningsystemresultsfromthisassumption.AsimulationandanalysisofthecoolingloaddistributionofanofficebuildinginHongKongwithTRANSYSsoftwareisprovidedinthispaper.Atypicalofficeisdividedinto13zonesforsimulation,includingexternalzone,medialzoneandinternalzoneinthenorth,thesouth,theeastandthewestrespectivelyandacentralzone,insteadof4directionalzone.Theresultshowsthereismuchcoolingloaddifferencebetweeneachzone,andmoreattentionshouldbepaidtounevenindoorcoolingandheatingloaddistributiontofurtherguidethedesign.
简介:TheresultsofBryeonlargedeviationsforempiricalmeasuresofstationaryφ-mixingsequencesareextended.Bryestateshisresultsintheusualweaktopologyonthespaceofprobabilitymeasures.Inthispaper,undersomewhatweakerassumptionsthanthoseofBryc,theauthorextendsBrye'sresultsbytakingthefinertopologywhichisgeneratedbytheintegralsoverboundedmeasurablefunctions.
简介:Aclassoflarge-sealesystems,wheretheoverallobjectivefunctionisanonlinearfunctionofperformanceindexofeachsubsystem,isinvestigatedinthispaper.Thistypeoflarge-scalecontrolproblemisnon-separableinthesenseofconventionalhierarchicalcontrol.Hierarchicalcontrolisextendedinthepapertolarge-scalenon-separablecontrolproblems,wheremultiobjectiveoptimizationisusedasseparationstrategy.Thelarge-scalenon-separablecontrolproblemisembedded,under;ertainconditions,intoafamilyoftheweightedLagrangianformulation.TheweightedLagrangianformulationisseparablewithrespecttosubsystemsandcanbeeffectivelysolvedusingtheinteractionbalanceapproachatthetwolowerlevelsintheproposedthree-levelsolutionstructure.Atthethirdlevel,theweightingvectorfortheweightedLagrangianformulationisadjustediterativelytosearchtheoptimalweightingvectorwithwhichtheoptimaloftheoriginallarge-scalenon-separablecontrolproblemisobtained.Theoreticalbaseofthealgorithmisestablished.Simulationshowsthatthealgorithmiseffective.
简介:Amodularflat-screenliquidcrystaltelevisiondisplayisdescribed.Thepictureelementsofthemodulesmaybeemissive,reflectiveortransmissive.Theflat-screenliquidcrystaltelevisionalsocomprisedofanelectricalcontrolcircuitcapableofcategorizingincomingtelevisionpicturesignalscorrespondingtothemodulesinthearrayanddirectingtheelectricalsignalstothedrivecircuitsofeachmoduleaccordingtotheportionofthetelevisionpicturetobereproducedbythepictureelementsofthatmodule.Thepictureelementsarepreferablyformedinalightmodulatingfilmcomposedofaliquidcrystaldispersioninapolymericbinder.Acolordisplaywasalsoproducedbyplacingapatternedred-green-bluefilteradjacenttheactivematrixsothateachpictureelementcouldalsobecoordinatedwiththecolorcomponentsofacolorvideosignal.
简介:1.IntroductionOneofthemostimportanttasksofmodernastronomyistoprobetheveryearlyuniverse.AccordingtothestandardBigBangtheory,primordialmatterconsistedofabout76%hydrogenand24%heliumbyweight,alongwithtracequantitiesofdeuteriumandlithium.Someofthisprimordialgaseventuallycooledenoughtocondenseintostars,andultimatelyformedgalaxies.Otherelements,suchascarbonandiron,areassumedtohavebeencreatedmuchlaterastheresultofstarformation.Theintergalacticmedium(IGM)islikelytocontainmorebaryonicmatterthanallthematter...
简介:LargescalecharacteristicdistancebetwenstrongearthquakeXIANFUDU(杜先富)SHAOXIEXU(许绍燮)InstituteofGeophysics,StateSeismologicalB...
简介:Volcaniceruptionisanimportantexternalforcingfactorofclimatechangeontimescalefrommonthtohundredyears.Inthispaper,theclimaticeffectofthelastlargehistoricaleruptionofTianchivolcano,whichhappenedin1229AD,hasbeeninvestigatedwithatwo-dimensionalenergybalancemodel.TakingMt.PinatubovolcanoandChangbaiMountain-Tianchivolcanoforexample,thenumericalsimulationontimescalefrommonthstoyearsindicatesthatsuchlargeeruptionsmayhavesignificantimpactsonglobalclimate.Basedonthesimulationresults,itissuggestedthatthelastlargeeruptionofTianchivolcanoshouldberesponsiblefortheabruptclimatechangeevent,whichbeganintheperiodfrom1230to1260AD.