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  • 简介:Inordertohighrealityandefficiency,thetechniqueofmotioncapture(MoCap)hasbeenwidelyusedinthefieldofcomputeranimation.Withthedevelopmentofmotioncapture,alargeamountofmotioncapturedatabasesareavailableandthisissignificantforthereuseofmotiondata.Butduetothehighdegreeoffreedomsandhighcapturefrequency,thedimensionofthemotioncapturedataisusuallyveryhighandthiswillleadtoalowefficiencyindataprocessing.Sohowtoprocessthehighdimensiondataanddesignanefficientandeffectiveretrievalapproachhasbecomeachallengewhichwecan'tignore.Inthispaper,firstwelayoutsomeproblemsaboutthekeytechniquesinmotioncapturedataprocessing.Thentheexistingapproachesareanalyzedandsummarized.Atlast,somefutureworkisproposed.

  • 标签: 数据处理技术 运动捕捉 综述 动作捕捉 电脑动画 运动捕获
  • 简介:Theprocessesreportedforthepreparationoflanthanumhexaboride(LaB6)fromlanthanumoxideinvolvetheuseofcarboneitherelementalorintheformofboroncarbideorelementalboronitselfasreducingagents,fusedsaltsathightemperaturesorreactionswhichrequiretheproductboridetobeleachedout.Eachofthesetechniqueseitherincreasestheprocesscostsand/orincreaseschancesofcontaminationinfi-nalproduct.PureLaB6canbestbepreparedbyareactionwhichproducesagaseousbyprodu...

  • 标签: 镧氯氧化物 镧 hexaboride 煤气固体
  • 简介:Conceptofblackbox,conditionofmodelingandcontrolmethodswereintroduced.Takinghighpuritysilicabrickasanexample,thesilicabrickfeaturedwithhighpurity,lowporosity,lowtruedensityandhighstrengthwasdevelopedthroughproblemanalysis,testdesign,modelingandoptimization.Usinginformationtechnologytoupgraderefractoriesindustrywasdiscussed.

  • 标签: 建模方法 黑盒子 材料技术 耐火 应用 低孔隙度
  • 简介:Approximating-natureforestrymanagementtechniqueapplicationresearchisdevelopedinCiinninghamialanceolataplantationfor17yearsatJiuxianForestFarminSongxiCounty,FujianProvince.TheresultsshowthatthebiodiversityoftheC.lanceolataplantationwasincreasedfrom48.5±3.3to74.6±3.3afteradoptingclose-to-natureforestrymanagementtechniques.Comparedwithconventionalmanagementmethod,thetestedforest’ssoilfertilitywasimproved:thesoilmoisture-physicalpropertiesandsoilexchangepropertieswereameliorated,thesoilnutrientcontentswereincreased;theaveragebreastheight,averagetreeheight,individualvolume,Chinesefirstandvolumeandstandtotalvolumewerepromotedby9.24%-17.64%,8.61%-17.29%,27.94%-58.46%,2.38%-28.64%and8.63%-37.55%,respectively.Theworsethesiteconditions,thegreatertheeffectindexeswithclose-to-natureforestrymanagementtechniqueswereimproved.

  • 标签: approximating-nature FORESTRY Cunninghamia lanceolata PLANTATION management
  • 简介:Detectingthetimingandamountofdeformationiscriticalforunderstandingthephysicalcausesandeventuallywarningofpossiblelandslidehazards.Monitoringofdeformationofstructuresandgroundsurfacedisplacementsduringlandslidescanbeaccomplishedbyusingdifferenttypesofsystemsandtechniques.Besidesgeotechnicalorphysicaltechniques,remotesensingtechniquescanbeclassifiedassatellitetechniques,photo-grammetrictechniques,geodetictechniques,groundbasedtechniques,andsoon.TostudyandgoverngrowinggeologicaldisastersinChina,especiallyintheThreeGorgesarea,ThreeGorgesResearchCenterforGeo-hazard(TGRG)isestablishinganinfrastructuretoef-fectivelyandcomprehensivelyanalyzethemechanismoflandslidedeformation,focusedontheHuangtupolandslide,usingofvariousad-vancedmonitoringsystemsandtechniques.Inthisarticle,theframeworkandlatestadvancesofintegrationofmultiremotesensingtechniquesintheinfrastructurearepresented.Differentremotesensingtechniques,dataprocessingandintegratingmethods,andthelatestresultsarediscussedindetail.Atlast,reviewsoncurrentworkandsuggestionsforfurtherworkareputforward.

  • 标签: 遥感技术 山体滑坡 集成框架 大地测量技术 地质灾害 三峡库区
  • 简介:Thelocalthermalconductivityofpolycrystallinealuminumnitride(AlN)ceramicsismeasuredandimagedbyusingascanningthermalmicroscope(SThM)andcomplementaryscanningelectronmicroscope(SEM)basedtechniquesatroomtemperature.ThequantitativethermalconductivityfortheAlNsampleisgainedbyusingaSThMwithaspatialresolutionofsub-micrometerscalethroughusingthe3ωmethod.Athermalconductivityof308W/m·Kwithingrainscorrespondingtothatofhigh-puritysinglecrystalAlNisobtained.Theslightdifferencesinthermalconductionbetweentheadjacentgrainsarefoundtoresultfromcrystallographicmisorientations,asdemonstratedintheelectronbackscattereddiffraction.Amuchlowerthermalconductivityatthegrainboundaryisduetoimpuritiesanddefectsenrichedinthesesites,asindicatedbyenergydispersiveX-rayspectroscopy.

  • 标签: 扫描电子显微镜 氮化铝陶瓷 扫描热显微镜 热导率测量 显微镜技术 互补