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500 个结果
  • 简介:Performancesrequired:prospecttobeadoptedinDEMO.ShieldingforV.V.andTFCinITER.Designprinciples:thepeaktemperatureandstressshouldnotexceedtechnicallimits.Thestructureoftestblanketmodules(TBM)shouldbesimpleforeasyfabrication,andTBMshouldberobustforreliability.

  • 标签: 聚变堆材料 ITER 试验包层模件 概念设计 热负荷限制
  • 简介:Thefastions,producedinD-3Hefusionplasma,arethe14.7MeVprotonsand3.6MeVαparticles.Becausetheirslowingdowntimesarefinite,therefore,theydevelopacertainamountofadditionalbeta(fir)whichhastobesupportedbythemagneticfield.

  • 标签: 电流放大系数 快离子 聚变等离子体 质子 Α粒子
  • 简介:AdeuteronpossessesacoulombpotentialbarrierwithmaximumUmax≈10^6eV(atro=1.51×10^-13cm)aroundhim.Soprerequisitetodirectcollideandexcitenuclearfusionreactionfortwodeuteronsistopenetratetoallofoppositebarrier.

  • 标签: 冷核聚变 基础物理学 电子屏蔽系数 氘核
  • 简介:数据熔化,新研究域,是现代信息技术和许多另外的题目的集成和扩展。数据熔化概念被介绍,Dempster-Shafer证据推理被描述并且适用于油和煤气的察觉。方法的一个例子用数字模拟数据被显示出。处理结果显示数据熔化方法能广泛地在烃察觉被使用。

  • 标签: 信息融合 综合推理 DEMPSTER-SHAFER理论 油气预测 数值模拟
  • 简介:Onthebasisofananalysisoftheerrorsourcesinmultibeamechosoundingsystem,adataprocessingmethodforcompensatingsystematicerrorsinmultibeamsurveyisproposed.Inordertoimprovetheaccuracyofoverallswath,adatafusiontechniqueusingsinglebeamsurveydataascontrolinformationforsinglebeamandmultibeamechosoundingisthenpresented.Somequestionsinvolvedinsolvingtheadjustmentproblem,suchasitsfeasibilityandthenumericalstability,arediscussedindetail,andatwo-stepadjustmentmethodissuggested.Finally,apracticalsurveydatasetisusedasacasestudytoprovetheefficiencyandreliabilityoftheproposedmethods.

  • 标签: MULTIBEAM echosounding ERROR COMPENSATION DATA FUSION
  • 简介:Housesarekeyelementsbothinaerialphotographsandmaps.Theirextractionhassignificancenotonlytomilitary,butalsotoautomaticalrela-tiveorientation,automaticalabsoluteorientation,feature-basedmatching,sys-tematicdescription,automaticdataaquisition,structureanalysis,imageunder-standing,digitalmapping,andconstructionofurbangeographicinformationsys-tem(UGIS).Forthispurpose,thispapermainlyaddresses:(1)abriefintroduc-tiontothemultiresolutionanalysisofwavelettheoryanditsdifferenceformLaplacianpyramid,(2)howtogeneratethemultiresolutionimagesandedgefea-tures,and(3)howtoemploythesemultiresolutionimagesandedgefeaturestoextractthehousesfromaerialphotographsbymultiresolutionstructureandinfor-mationfusion.

  • 标签: WAVELET theory MULTIRESOLUTION analysis: HOUSE EXTRACTION
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  • 简介:Takingtheadvantageoftheliftingscheme'scharactersthatcanbuildwavelettransformsfortransformingfromintegertointegerandthequalityofthereconstructingimageisindependentofthetopologywayadoptedbytheboundary,animagefusionalgorithmbasedonliftingschemeisproposed.Thispaperdiscussesthefundamentaltheoryofliftingschemefirstlyandthenaftertakingtransformanalysisaccordingtoakindofimagesthatneedtobeconfused.

  • 标签: 数据压缩 图像压缩 提升方法 图像处理
  • 简介:Objective:Toevaluatetheefficacyandsignificanceofposterolateralfusioninpreventingfailureofshort-segmentstabilizationforthetreatmentofthoracolumbarburstfractures.Methods:Sixtypatientswiththoracolumbarburstfractureswereincludedinthestudy.Thepatientswereclassifiedintotwogroups(n=30ineachgroup).InGroupA,patientsweretreatedinourhospitalwithshort-segmentinstrumentationviaposterolateralfusionwithiliacbone.InGroupB,patientsweretreatedinotherhospitalwithshort-segmentfixationwithoutfusion.Allcasescametoourhospitalforreexamination.Therewere18malesand12femalesinGroupAwithameanageof42.3years(range,24to52years)and16malesand14femalesinGroupBwithameanageof41.5years(range,19to54years).Radiographic(Cobbangle,kyphosisofthevertebralbody,andsagittalindex)andclinicaloutcomes(LowBackOutcomeScore)wereanalyzedafteranaveragefollow-upof16months.Results:Afteroperation,Cobbanglewasreducedfrom19.3°to3.1°inGroupAandfrom19.1°to3.3°inGroupB(P>0.05).Itwas5.9°inGroupAand11.9°inGroupBatthefinalfollow-up(P<0.01).Itsaveragelossofcorrectionwas2.8°inGroupAand8.6°inGroupB.Averagekyphosisofthevertebralbodywasreducedfrom21.3°to6.2°inGroupAandfrom21.7°to7.4°inGroupB(P>0.05).Itwasdecreasedto7.9°inGroupAand13.5°inGroupBatthefinalfollow-up(P<0.01).Itsaveragelossofcorrectionwas1.7°inGroupAand6.1°inGroupB.Sagittalindexwasreducedfrom21.3°to3.6°inGroupAandfrom20.5°to3.8°inGroupB(P<0.05).Itwasdecreasedto5.1°inGroupAand9.8°inGroupBatthefinalfollow-up(P<0.01).Itsaveragelosswas1.5°inGroupAand6.0°inGroupB.InGroupA,73.3%ofpatientshadanexcellentresultbasedonLowBackOutcomeScoresystem,whilethatinGroupBwasonly43.3%.Conclusions:Posterolateralfusionisaneffectivemeasuretopreventimplantfailure,anddecreaselo

  • 标签: 腰部骨折 病理 治疗 临床
  • 简介:BTFusion是一个针对消费者市场的无缝固定一移动融合产品;它是科技发展的产物,同时也是BT的一个巨大成就。

  • 标签: FUSION BT 科技发展 消费者
  • 简介:BasedonthesinglesensorKalmanfilteringequations,thispaperpresentstwo-levelandthree-leveloptimalcentralizedanddistributedestimationalgorithmsforhierarchicalmultisensorsystems.Thesolutionshowsthatwhenthecorrelatedmatrix,themeanofnoise,thecontrolinput,andthemeasurementerrorareallzero,theresultinthispapertumsouttobethestandardalgorithmdiscussed.Simulationshowsthatthemeanofnoise,thecontrolinput,andthemeasurementerrorwillnotchangetheestimationcovarianceandtheestimationcovariancefluctuatesgreatlywhenthecross-correlatedmatrixissimilartothecovarianceofprocessnoise.

  • 标签: 数据融合 分层估计 多层滤波 相关噪声
  • 简介:Thispaperpresentsadatafusionmethodindistributedmulti-sensorsystemincludingGPSandINSsensors'dataprocessing.First,aresidualχ2-teststrategywiththecorrespondingalgorithmisdesigned.Thenacoefficientmatricescalculationmethodoftheinformationsharingprincipleisderived.Finally,thefederatedKalmanfilterisusedtocombinetheseindependent,parallel,real-timedata.Apseudolite(PL)simulationexampleisgiven.

  • 标签: 分布式 多传感器系统 信息熔解 联合卡尔曼过滤 数据处理 GPS