简介:ThemagneticfusionreactorusingtheadvancedD-3Hefuelshastheadvantageofmuchless-neutronproductionssothattheconsequentdamagestothefirstwallarelessserious.Iftheestablishmentofthiskindofreactorbecomesrealistic,theexplorationof3Heonthemoonwillbelargelymotivated.Basedonrecentprogressesinthesphericaltorus(ST)research,wehavephysicallydesignedaD-3HefusionreactorusingtheextrapolatedresultsfromtheSTexperimentsandalsothepresent-daytokamakscaling.Itisfoundthatthereactorsizesignificantlydependsonthewallreflectioncoefficientofthesynchrotronradiationandoftheimpuritycontaminations.ThesecondaryreactionbetweenD-DthatpromptlyleadstotheD-Treactionproducing14MeVneutronsisalsoestimated.ComparisonofthisD-3HeSTreactorwiththeD-Treactorismade.
简介:Theethanolcontentinethanol-gasolineisrespectivelydetectedbythefirst-orderderivativeUV/visabsorptionspectrum,thefirst-orderderivativenearinfrared(NIR)absorptionspectrumandtheinformationfusionmethod.Thebackwardintervalpartialleastsquares(BiPLS)algorithmisusedasthefeatureextractionmethod,whichisestablishedbythepartialleastsquares(PLS)regressionmodel.Basedontheinformationfusiontheory,thelowleveldatafusion(LLDF)andmid-leveldatafusion(MLDF)modelsareestablishedbythefirst-orderderivativeUV/visandNIRspectra.Theanalytical-resultsarecomparedwiththerelatedtextualreferences.Thereby,thesingle-spectralmodelbasedonthefirst-orderderivativeNIRabsorptionspectrumhastheoptimalresults,whereR^2p=0.9991andRMSEP=-0.3245,whiletheLLDFaftervectornormalization(LLDF-VN2)istheoptimalmulti-spectralfusionmodel,whereR^2p=0.9983andRMSEP=-0.4982.Theproposedmethodcanbeusedtodetecttheethanolcontentinethanol-gasolinerapidlyandprovidesabetterchoiceforthecomponentdetectioninmixedoils.
简介:ThispaperproposesaPCAandKPCAself-fusionbasedMSTARSARautomatictargetrecognitionalgorithm.Thisalgorithmcombinesthelinearfeatureextractedfromprincipalcomponentanalysis(PCA)andnonlinearfeatureextractedfromkernelprincipalcomponentanalysis(KPCA)respectively,andthenutilizestheadaptivefeaturefusionalgorithmwhichisbasedontheweightedmaximummargincriterion(WMMC)tofusethefeaturesinordertoachievebetterperformance.Thelinearregressionclassifierisusedintheexperiments.Theexperimentalresultsindicatethattheproposedself-fusionalgorithmachieveshigherrecognitionratecomparedwiththetraditionalPCAandKPCAfeaturefusionalgorithms.
简介:Anumericalmethodprovidingtheoptimallaserintensityprofilesforadirect-driveinertialconfinementfusionschemehasbeendeveloped.Themethodprovidesanalternativeapproachtophase-spaceoptimizationstudies,whichcanprovecomputationallyexpensive.ThemethodappliestoagenericirradiationconfigurationcharacterizedbyanarbitrarynumberNBoflaserbeamsprovidedthattheyirradiatethewholetargetsurface,andthusgoesbeyondpreviousanalyseslimitedtosymmetricconfigurations.Thecalculatedlaserintensityprofilesoptimizetheilluminationofasphericaltarget.Thispaperfocusesondescriptionofthemethod,whichusestwosteps:first,thetargetirradiationiscalculatedforinitialtriallaserintensities,andtheninasecondsteptheoptimallaserintensitiesareobtainedbycorrectingthetrialintensitiesusingthecalculatedillumination.AlimitednumberofexampleapplicationstodirectdriveontheLaserMegaJoule(LMJ)aredescribed.
简介:Toaimattheproblemthatthehorizontaldirectivityindexofthevectorhydrophoneverticalarrayisnothigherthanthatofavectorhydrophone,thehigh-resolutionazimuthestimationalgorithmbasedonthedatafusionmethodwaspresented.TheproposedalgorithmfirstemploysMUSICalgorithmtoestimatetheazimuthofeachdividedsub-bandsignal,andthentheestimatedazimuthsofmultiplehydrophonesareprocessedbyusingthedatafusiontechnique.Thehigh-resolutionestimatedresultisachievedfinallybyadoptingtheweightedhistogramstatisticsmethod.TheresultsofthesimulationandseatrialsindicatedthattheproposedalgorithmhasbetterazimuthestimationperformancethanMUSICalgorithmofasinglevectorhydrophoneandthedatafusiontechniquebasedontheacousticenergyfluxmethod.Thebetterperformanceisreflectedintheaspectsoftheestimationprecision,theprobabilityofcorrectestimation,thecapabilitytodistinguishmulti-objectsandtheinhibitionofthenoisesub-bands.
简介:Satelliteremotesensingofinlandwaterbodyrequiresahighspatialresolutionandamultibandnarrowspectralresolution,whichmakesthefusionbetweenpanchromatic(PAN)andmulti-spectral(MS)imagesparticularlyimportant.TakingtheDaquekousectionoftheQiantangRiverasanobservationtarget,fourconventionalfusionmethodswidelyacceptedinsatelliteimageprocessing,includingpansharpening(PS),principalcomponentanalysis(PCA),Gram-Schmidt(GS),andwaveletfusion(WF),areutilizedtofuseMSandPANimagesofGF-1.TheresultsofsubjectiveandobjectiveevaluationmethodsapplicationindicatethatGSperformsthebest,followedbythePCA,theWFandthePSintheorderofdescending.Theexistenceofalargeareaofthewaterbodyisadominantfactorimpactingthefusionperformance.Meanwhile,theabilityofretainingspatialandspectralinformationsisanimportantfactoraffectingthefusionperformanceofdifferentfusionmethods.ThefundamentaldifferenceofreflectivityinformationacquisitionbetweenwaterandlandisthereasonforthefailureofconventionalfusionmethodsforlandobservationsuchasthePStobeusedinthepresenceofthelargewaterbody.Itissuggestedthattheadoptionoftheconventionalfusionmethodsintheobservingwaterbodyasthemaintargetshouldbetakenwithcaution.Theperformancesofthefusionmethodsneedre-assessmentwhenthelarge-scalewaterbodyispresentintheremotesensingimageorwhentheresearchaimsforthewaterbodyobservation.
简介:无
简介:处于正常操作条件,一个常规方形根的求容积法Kalman过滤器(SRCKF)给足够地好的评价结果。然而,如果大小不是可靠的,SRCKF可以给不精密的结果并且到时间分叉。这研究与过滤器获得修正介绍一个适应SRCKF算法因为测量的盒子失灵。由建议一个切换的标准,一个最佳的过滤器根据测量质量从适应、常规的SRCKF被选择。一个分系统软差错察觉算法与过滤器剩余被造。利用一个清楚的分系统差错系数,有缺点的分系统由于系统重建被孤立。以便改进多传感器系统的性能,一个混合熔化算法基于适应SRCKF被介绍。状态和错误协变性矩阵被priori熔化估计也预言,并且被分系统的预言并且估计的信息更新。建议算法被用于容器动态放系统模拟。他们与正常SRCKF和本地评价相比是加权的熔化算法。模拟结果证明介绍适应SRCKF改进分系统过滤的坚韧性,并且混合熔化算法有更好的表演。模拟验证建议算法的有效性。
简介:
简介:Directsimulationof3-DMHD(magnetohydrodynamics)flowsinliquidmetalfusionblanketwithflowchannelinsert(FCI)hasbeenconducted.Twokindsofpressureequilibriumslot(PES)inFCI,whichareusedtobalancethepressuredifferencebetweentheinsideandoutsideofFCI,areconsideredwithaslotinHartmannwalloraslotinsidewall,respectively.ThevelocityandpressuredistributionofFCImadeofSiC/SiC_farenumericallystudiedtoillustratethe3-DMHDfloweffects,whichclearlyshowthatt...
简介:Inthisstudyalumbarspinalfusionanimalmodelisestablishedtoassesstheeffectofspinalfusioncage,andexploretheminimumarearatiooftitaniumcagesectiontovertebralsectionthatensuresbonehealingandbiomechanicalproperty.Lumbarcorpectomywasconductedbyposterolateralapproachwithtitaniumcageimplantationcombinedwithplatefixation.Titaniumcageswiththesamelengthbutdifferentdiameterswereused.Afterimplantationoftitaniumcages,theprogressofbonehealingwasobservedandthebonebiomechanicalpropertiesweremeasured,includingdeformationanddisplacementinaxialcompression,flexion,extension,andlateralbendingmotion.Thefactorsaffectingtheinvivogrowthofspinesupportingbodywereanalyzed.Theresultsshowthatthearearatiooftitaniumcagesectiontovertebralsectionshouldreach1/2toensurethebonehealing,sufficientboneintensityandbiomechanicalproperties.Somebonehealingindicators,suchasBMP,suggestthatthereisarelationshipbetweenthepeaktimeandthepeakvalueofboneformationandmetabolismmarkersandthebonehealingstrength.
简介:到还原剂收益损失和减少杀虫剂使用的害虫抵抗的转基因的植物的采纳是成功的。达到控制在给定的转基因的植物咀嚼并且吸害虫的目标,我们产生了表示熔化蛋白质的转基因的烟草,Arabidopsis,和米饭植物,AaIT/GNA,在里面它杀虫的蝎子毒液神经毒素(Androctonus南极光毒素,AaIT)被熔化到雪花莲lectin(Galanthusnivalis凝集素,GNA)。与表示AaIT或GNA的转基因的烟草和Arabidopsis植物相比,表示展出的AaIT/GNA的转基因的植物增加了抵抗和毒性到一个咀嚼的害虫,棉花一种蛾的幼虫,Helicoverpaarmigera。表示AaIT/GNA的转基因的烟草和米饭植物显示出增加的抵抗和毒性到二个吸的害虫,whitefly,Bemisiatabaci,和米饭褐planthopper,Nilaparvatalugens分别地。而且在这块地里,当与N大批出没于时,表示AaIT/GNA的转基因的米饭植物在谷物产量展出了重要改进。lugens。这研究证明在转基因的植物表示AaIT/GNA熔化蛋白质能是为控制害虫的一条有用途径,特别地吸不产生在Bt的毒素的害虫收割。
简介:γ-ray in 25 MeV/u 40Ar+115In and 103Rh Fusion-fission Reactionsγ-rayin25MeV/u40Ar+115Inand103RhFusion-fissionR...
简介:为了探究原子光刻中基片与会聚激光场间距对沉积纳米光栅质量的影响,我们基于VirtualLabFusion(VLF)平台实现了基片定位控制方案中光学系统的建模和仿真.结果显示:基片在切割会聚激光时将产生直边衍射图像,其轮廓形状和最大值都会随着基片切割激光截面区域大小的变化而变化:虚拟光电探测器上所得到的反射光强度值将随着基片-会聚激光间距的变化给出了倒置的高斯线型,其最低点出现在基片中心和会聚激光场轴线重合时的位置上.当会聚激光场截面恰好被基片阻挡一半时,探测处的强度值降至45.5%.这种光强随基片位置的变化情况为精确地定位基片位置提供了理论支撑.
简介:Thelackofefficientandnon-toxicgenedelivery,preferablywithnon-viralDNAvectors,isgenerallyregardedasamajorlimitationforgenetherapy.Inthisstudy,awheathistoneH4genewasclonedfromTriticumaestivum,sequenced,modifiedandexpressedinE.coli.ThewheathistoneH4geneandreconstructedH4TLgeneencodedwheathistoneH4andarecombinantproteinof141aminoacidswithanapproximatemolecularweightof15500.GelelectrophoresismobilityshiftassaysdemonstratedthatthepurifiedproteinhadhighaffinityforDNA.Mostsignificantly,thecomplexofplasmidpEGFP/C1withH4TLwastransfectedwithincreasedefficiencyintoMCF-7,HO8910,LNCap,A549andHeLacellsinvitro.Theseresultsdemonstratethatthetargetingofnon-viralvectorstotumor-specificreceptorsprovidesacheap,simpleandhighlyefficienttoolforgenedelivery.