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简介：ThispaperinvestigatestherelationshipbetweenstatefeedbackandHamiltonicanrealization.Firest,itisprovedthatacompletelycontrollablelinearsystemalwayshasastatefeedbackstateequationHamiltonianrealization.NecessaryandsufficientconditionsareobtainedforittohaveaHamiltonianrealizationwithnaturaloutput.ThensomeconditionsforanaffinenonlinearsystemtohaveaHamiltonianrealizationaregiven.someconditionsforanaffinenonlinearsystemtohaveaHamiltonianrealizationaregiven.Forgeneralizedoutputs,theconditionsofthefeedback,keepingHamiltonian,arediscussed.Finally,theadmissiblefeedbackcontrolsforgeneralizedHamiltoniansystemsareconsidered.

简介：使用one-day-arc由覆盖的轨道集成n-days-arc的算法详细被讨论。一个例子被给，它证明轨道集成方法能高效地改进轨道的精确，特别在一个本地区域的轨道的决心。IGS出版的轨道是七个IGS分析中心(代码，EMR，ESA，GFZ，JPL，NGS，和SIO)的综合结果独立结果。因为one-day-arc的末端的效果，在两个的错误轨道的终端由比较，和轨道经常是更大的每天是不连续的。改进轨道的质量，把one-day-arc集成到n-days-arc并且提供w-days-arc的中间的节让n-analysis-center的集成获得精确IGS的每分析中心需要转。通常，由轨道集成方法的轨道的中间的节比由one-day-arc方法有更高的精确性。这块研究地仍然在在中国的基本阶段。

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简介：<正>HomogeneousandinhornogeneousdifferentialrealizationsoftheOSP(2,1)superalgebraonthespacesofhomogeneousandinhomogeneouspolynomialsandthecorrespondingboson-fermioiirealizationsarestudied.ThenewindecomposableandirreduciblerepresentationsoftheOSP(2,1)aregivenonsubspacesandquotientspacesoftheuniversalenvelopingalgebrasofHeisenberg-Weylsuperalgebra.AllthefinitedimensionalirreduciblerepresentationoftheOSP(2,1)superalgebraisnaturallyobtainedasspecialcases.

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简介：Thispaperaimstogivesomeexamplesofdiffeomorphic(orhomeomorphic)lowdimensionalcompleteintersections,whichcanbeconsideredasageometricalrealizationofclassificationtheoremsaboutcompleteintersections.AconjectureofLibgoberandWood(1982)willbeconfirmedbyoneoftheexamples.

简介：我们试验性地证明在由使用顺序的计划的二单一的操作之间的完美的辨别由Duan等求婚了[Phys。加快。Lett。98(2007)100503]也，我们显示出怎么理解计划并且在Bloch范围的图画为二维的操作计算参数。[从作者抽象]

简介：Thechemicaloxygen–iodinelaser(COIL)istheshortest-wavelengthhigh-powerchemicallaserthathasbeendemonstrated.Thecharacteristics,suchasgoodatmosphericpropagation,shortwavelengthandexcellenttransmissionthroughopticalfibers,maketheCOILagoodcandidateforhigh-powerlaserapplication.TomodelthecompleteCOILlasinginteraction,athree-dimensionalformulationofthefluiddynamics,speciescontinuityandradiationtransportequationsisnecessary.Thecomputationalefforttocalculatetheflowfieldovertheentirenozzlebankwithagridfineenoughtoresolvetheinjectionholesissolargeastoprecludedoingthecalculation.Theapproachtomodelingchemicallasersthenhasbeentoreducethecomplexityofthemodeltocorrespondtotheavailablecomputationalcapability,addingdetailsascomputingpowerincreased.ThemodelingoflasingintheCOILmediumisproposed,whichiscouplingwiththeeffectsinducedbytransverseinjectionofsecondarygases,non-equilibriumchemicalreactions,nozzletailflowandboundarylayer.ThecoupledsteadysolutionsofthefluiddynamicsandopticsinaCOILcomplexthree-dimensionalcavityflowfieldareobtainedfollowingtheproposal.Themodelingresultsshowthattheseeffectshavesomeinfluenceonthelasingproperties.Afeasiblemethodologyandatheoreticaltoolareofferedtopredictthebeamqualityforlarge-scaleCOILdevices.

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简介：Realisticsimulationofunderwatersceneisalwaysdifficultbecauseofthespecialandcomplexvisioneffectsinunderwaterspace.Seabedisanimportantpartofunderwaterenvironment.ThispaperdescribesthemethodsforseabedscenesimulationbasedonOpenGL.Itincludesconstructionoffluctuantterrainbasedontherandomsinusoidalalgorithm,simulationofseabedflickereffectbymeansofcirculartexturemappingandgenerationofturbidityeffectbyusingfogtechniques.Fortheapplicationbasedontheleadinghighlevel3Ddevelopmentenvironment-Vega,underwaterscenesimulationisstilladifficultysincethereisnomoduleforit.BasedontheanalysisofVegasoftwareandtheresearchonseabedscenesimulationmethods,aVegaextendingmodulenamed'UnderwaterSpace'wascreatedthroughdevelopingmoduleclassandextendinglynxinterface.ThemoduleclasswasdesignedthroughdevelopingDLLwritteninC++.TheLynxwasextendedthroughdevelopingkeywordconfigurefile,GUIconfigurefileandlynxplug-inDLL.TheproblemthatVegacan'tsimulateunderwaterspace,iselementarilyresolved.Theresultsshowthatthismoduleisefficient,easyusing,andtheseabedsceneimagesarevivid.

简介：就在区域，精确，在国家、省、城市的伪大地水准面之中存在的资料和决定的差别而言，象资料转变和weighting那样的一些方法在这篇论文根据精确被介绍与不同区域，精确，资料和决定使伪大地水准面模型正常化。这样，伪大地水准面的无缝的拼接被认识到。

简介：ThroughthepracticeofdevelopinganexpertsystemFBCDES(FeedBoxConceptualDe-signExpertSystem)fortheplanomillingmachineinCIMSERC(CIMSEngineeringResearchCenter)inChina,thepaperintendstointroduceacommonproblem-solvingstrategyforthemechanicalproductconceptualdesignexpertsystem.Meanwhilesomeproblemssuchassystemarchitecture,knowledgerepresentationsandinferenceenginesetsarealsodescribed.Ayetmoredetaileddiscussionisgiventothetechnicalproblemsforrealizingtwokeymodules,thatisconceptdesignmoduleandlayoutmodule.

简介：Internethasgraduallydemonstratedmoreandmoresuperiorityinmoderneducationsystem.Theintelligentonlinedrawingplatformbasedonnetwillprovidelearnerswithastudyingenvironmentwithoutlimitationintimeandspace.Basedonthetheoryofgraphics,thispaperdevelopedanintelligentonlinedrawingplatform(IODP)withJavathroughanalyzingtheteachingcharacterofdescriptivegeometry.IODPdevelopednotonlyhasaflexibledrawingenvironmentwiththefunctionofmutualdrawing,butalsoisabletojudgethedrawingmadebystudentsandgivefeedbackatthesametime.ThisplatformgivesaneffectivewayforInterneteducationonengineeringgraphics.

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简介：Previously,anovelclassifiercalledKernel-basedNonlinearDiscriminator(KND)wasproposedtodiscriminateapatternclassfromotherclassesbyminimizingmeaneffectofthelatter.Toconsidertheeffectofthetargetclass,thispaperintroducesanobliqueprojectionalgorithmtodeterminethecoefficientsofaKNDsothatitisextendedtoanewversioncalledextendedKND(eKND).IneKNDconstruction,thedesiredoutputvectorofthetargetclassisobliquelyprojectedontotherelevantsubspacealongthesubspacerelatedtootherclasses.Inaddition,asimpletechniqueisproposedtocalculatetheassociatedobliqueprojectionoperator.ExperimentalresultsonhandwrittendigitrecognitionshowthatthealgorithmperformesbetterthanaKNDclassifierandsomeothercommonlyusedclassifiers.

简介：Duetolowparametersensitivityforbalancedrealizations,balancedstructurebecomesagoodcandidateforanstatespaceadaptiveinfiniteimpluseresponse(MR)filter.Here,usingcoefficientsofthetransferfunctionastheadaptivefilteringparameters,abalancedadaptiveIIRfilteringalgorithmisproposedforoutput-errorminimization.ThealgorithmintheinternallybalancedrealizationguaranteesthattheadaptiveIIRfilteralwaysminimizestheratioofmaximum-to-minimumeigenvalueoftheGrammianmatricesattheeachiteration.Simulationresultsareprovidedtocorroboratetheproposedalgorithm.

简介：Thisyearmarksthe70thanniversaryoftheanti-Fascistwar,andtherighttodevelopmentisalsobornduringthewar.Inotherwords,therighttodevelopmentisaproductofthestruggleofdevelopingcountriestobreaktheoldinternationalorder.Therefore,tostudytherighttodevelopmentisofprofoundandrealisticsignificanceforhumanrightsprotection.Theauthorwillstartfromthemeaningoftherighttodevelopment,tracethecourseofitsformationandevolution,andthenbytakinghistoryasamirror,discusstherealizationandprotectionoftherighttodevelopment,proposesomerelevantsuggestions,soastopromotethedevelopmentofanewinternationalorderandmeetthenewrequirementsofglobalization.

简介：Sincethe18thNationalCongressoftheCommunistPartyofChina,GeneralSecretaryXiJinpinghasissuedaseriesofimportantexpositionsonpeaceanddevelopment,whoseimpactisincreasinglyimportantforthecurrentprocessofglobalgovernance.XihaspointedoutthatChinesecivilizationhasupheldharmonyinhandling

简介：Near30yearsaftertheadoptionofthe1986UNDeclarationontheRighttoDevelopment,understandingofthisRightstilldiffersfromonepoliticalgrouptoanother.TheSouthstressesissuessuchasinequalitiesintheinternationalfinancialsystem,greaterparticipationofdevelopingcountriesinglobaldecision-makingoneconomicpolicy,andpromotingafairertraderegime.TheNorthpersistsonaptdomesticconditionsindevelopingcountriessuchasruleoflaw,goodgovernance,democracyandresponsibleeconomicmanagement.AndwhiletheNonAlignedMovementcallsforaninternationallegalstandardofabindingnature,theEuropeanUnionisopposedtosuchanupgradeoftheDeclaration.Infact,draftingaFrameworkConventionontheRighttoDevelopmentseemstobethebestoptionforaccommodatingtheconcernsofthedifferentpoliticalgroups,asitallowsforastep-by-stepapproach.Aframeworkconventionisatreatyunderinternationallaw:suchatreatyisopentoStates,andonceithasenteredintoforce,itisbindingonStatesthathaveexpressedconsent.ThepotentialaddedvalueofaFrameworkConventionontheRighttoDevelopmentistobalancethecurrenthumanrightsregimewithatreatythatgoesbeyondindividualStateresponsibilityandtakesinspirationfromprinciplesderivedfrominternationaldevelopmentefforts,suchasmutualaccountability,alignmentofpoliciesamongpartnercountries,andinclusivepartnerships.