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简介：设计了一种基于微控制器的RadFET辐射剂量测试系统,介绍了系统的测试原理和方法,通过测量阈值电压的偏移值可得到吸收剂量。利用60Coγ辐照测试系统进行了试验验证。试验结果表明：该测试系统能够实现宽范围辐射剂量测量,同时该系统也可用于其他MOSFET器件阈值电压的测量,尤其适用于辐射剂量的长期测量或者实时测量。

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简介：Inthispaper,wepresentanovelSupportVectorMachineactivelearningalgorithmforeffective3Dmodelretrievalusingtheconceptofrelevancefeedback.Theproposedmethodlearnsfromthemostinformativeobjectswhicharemarkedbytheuser,andthencreatesaboundaryseparatingtherelevantmodelsfromirrelevantones.Whatitneedsisonlyasmallnumberof3Dmodelslabelledbytheuser.Itcangrasptheuser'ssemanticknowledgerapidlyandaccurately.Experimentalresultsshowedthattheproposedalgorithmsignificantlyimprovestheretrievaleffectiveness.Comparedwithfourstate-of-the-artqueryrefinementschemesfor3Dmodelretrieval,itprovidessuperiorretrievalperformanceafternomorethantworoundsofrelevance

简介：在这研究，为波浪精力变换与固定指南翼推进一台推动汽轮机的表演的改进以便完成，表演上的指南翼形状的效果被实验调查。调查被模型在稳定的流动状况下面测试执行。作为结果，因为转矩的增加，有3D指南翼的汽轮机的效率比有2D指南翼的汽轮机的稍微优异，这被发现指南翼，尽管越过为3D案例的汽轮机的压力落下为2D案例比那稍微高。关键词液体机械-推动汽轮机-指南翼-波浪精力变换CLC数字TK735

简介：现在的纸为与快速的3D片和格子生成器(RAPID3DGRID)相结合的turbomachinery的空气动力学的设计描述优化方法论，一个N.S解答者，一个片parameterization方法(BPM)，一个基于坡度的analyseparameterization方法(GPAM)，有激增的一个反应表面方法(RSM)算法和一个简单坡度方法。由片parameterization方法的使用，一个接近音速的压缩机转子能被一套多项式表示，然后它使我们能转变表示坐标的片数据到表示参数然后减少参数的数字。与改变任何一个参数，我们能获得几组样品。这里，仅仅十个参数被认为寻找一个优化压缩机转子。由于优化，断热的效率被1.73%增加。

简介：Theshiftinthepercolationthresholdofcompressedcompositeswasstudiedbya3Dcontinuumpercolationmodel.AMonteCarlo(MC)methodwasemployedinthesimulations.Thepercolationthresholdwasfoundtorisewiththecompressionstrain,whichcapturesthebasictrendincompression-inducedconductivityvariationfromtheexperiments.Bothfiberbendingandtextureformationcontributetothepercolationthreshold.Theresultssuggestthatfillerswithahighaspectratioaremoredesirableforsensorandelectricalswitchapplications.

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简介：Inthiswork,anewmethodtodealwiththeunconnectedpixelsinmotioncompensatedtemporalfiltering(MCTF)ispresented,whichisdesignedtoimprovetheperformanceof3Dliftedwaveletcoding.Furthermore,multipledescriptionscalablecoding(MDSC)isinvestigated,andnovelMDSCschemesbasedon3Dwaveletcodingareproposed,usingtheliftingimplementationoftemporalfiltering.TheproposedMDSCschemescanavoidthemismatchprobleminmultipledescriptionvideocoding,andhavehighscalabilityandrobustnessofvideotransmission.Experimentalresultsshowedthattheproposedschemesarefeasibleandadequatelyeffective.

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简介：Anapproachforgeneratinginteractive3Dgraphicalvisualizationofthegeneticarchitecturesofcomplextraitsinmultipleenvironmentsisdescribed.3Dgraphicalvisualizationisutilizedformakingimprovementsontraditionalplotsinquan-titativetraitlocus(QTL)mappinganalysis.Interactive3DgraphicalvisualizationforabstractexpressionofQTL,epistasisandtheirenvironmentalinteractionsforexperimentalpopulationswasdevelopedinframeworkofuser-friendlysoftwareQTLNetwork(http://ibi.zju.edu.cn/software/qtlnetwork).Noveldefinitionofgraphicalmetasystemandcomputationofvirtualcoordinatesareusedtoachieveexplicitbutmeaningfulvisualization.Interactive3DgraphicalvisualizationforQTLanalysisprovidesgeneticistsandbreedersapowerfulandeasy-to-usetooltoanalyzeandpublishtheirresearchresults.

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简介：Thispaperisconcernedwithexperimentalandnumericalresearchon3DflowpastprismaticturbinecascadeSE1050(knowninQNETnetworkasopentestcaseSE1050).Theprimarygoalwastoassesstheinfluenceoftheinletvelocityprofileontheflowstructuresintheinterbladechannelandontheflowfieldparametersatthecascadeexitandtocomparethesefindingstoresultsofnumericalsimulations.Investigationsof3Dflowpastthecascadewithnon-uniforminletvelocityprofilewerecarriedoutbothexperimentallyandnumericallyatsubsonic(M2is=0.8)andattransonic(M2is=1.2)regimeatdesignangleofincidence.Experimentaldatawasobtainedusingatraversingdevicewithafive-holeconicalprobe.Numerically,the3DflowwassimulatedbyopensourcecodeOpenFOAMandin-housecode.AnalysesofexperimentaldataandCFDsimulationshaverevealedthedevelopmentofdistinctivevortexstructuresresultingfromnon-uniforminletvelocityprofile.Originofthesestructuresresultsinincreasedlossofkineticenergyandspanwiseshiftofkineticenergylosscoefficientdistribution.Differencesfoundbetweenthesubsonicandthetransoniccaseconfirmearlierfindingsavailableintheliterature.ResultsofCFDandexperimentsagreereasonablywell.

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简介：在这份报纸，我们在场一三维(3D)在为收音机频率的晶片水平的真空包装技术微机电的系统(RFMEMS)共鸣器，低损失的硅vias在被用来播送RF发信号。Au-Sn焊接结合被采用象电的导体一样提供真空封装。封装帽子的一个RF模型被建立评估包装的寄生效果，它提供3DRFMEMS封装的一个有效设计答案。与建议包装结构，24dB的signal-to-background比率(SBR)被完成，以及共鸣器的优秀因素(Q因素)在包装以后从8000～10400增加。包装共鸣器有线性频率温度(英尺)在在0楨?慰数?之间的一个温度范围特征?牵敶?牡?牰癯摩吗？？

简介：Inthispaper,weproposeahighlyautomaticapproachfor3Dphotorealisticfacereconstructionfromasinglefrontalimage.Thekeypointofourworkistheimplementationofadaptivemanifoldlearningapproach.Beforehand,anactiveappearancemodel(AAM)istrainedforautomaticfeatureextractionandadaptivelocallylinearembedding(ALLE)algorithmisutilizedtoreducethedimensionalityofthe3Ddatabase.Then,givenaninputfrontalfaceimage,thecorrespondingweightsbetween3DsamplesandtheimagearesynthesizedadaptivelyaccordingtotheAAMselectedfacialfeatures.Finally,geometryreconstructionisachievedbylinearweightedcombinationofadaptivelyselectedsamples.Radialbasisfunction(RBF)isadoptedtomapfacialtexturefromthefrontalimagetothereconstructedfacegeometry.Thetextureofinvisibleregionsbetweenthefaceandtheearsisinterpolatedbysamplingfromthefrontalimage.Thisapproachhasseveraladvantages:(1)Onlyasinglefrontalfaceimageisneededforhighlyautomaticfacereconstruction;(2)Comparedwithformerworks,ourreconstructionapproachprovideshigheraccuracy;(3)ConstraintbasedRBFtexturemappingprovidesnaturalappearanceforreconstructedface.