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146 个结果
  • 简介:道德认知不能仅停留于知识层面。它最终应该内化为学生的一种品质,升华为学生的一种精神,而传统的教学方法使学生获得的道德认识却难以实现这一升华。因此,我们在思想道德教育中必须融入现代教育理念,让学生从自身实际出发,以兴趣为先导,以内需为动力,以实践为载体,积极倡导自主学习、合作学习与探究学习。使学生的主体性得到充分的发挥,让学生在主动思考、写作探索、亲身经历中自主地去发掘,自主地去构建科学的道德认知,为自身思想道德素质的全面提高创设扎实的基础。

  • 标签: 锂资源 聚变堆 世界 中国 DT 评价
  • 简介:ThemagneticfusionreactorusingtheadvancedD-3Hefuelshastheadvantageofmuchless-neutronproductionssothattheconsequentdamagestothefirstwallarelessserious.Iftheestablishmentofthiskindofreactorbecomesrealistic,theexplorationof3Heonthemoonwillbelargelymotivated.Basedonrecentprogressesinthesphericaltorus(ST)research,wehavephysicallydesignedaD-3HefusionreactorusingtheextrapolatedresultsfromtheSTexperimentsandalsothepresent-daytokamakscaling.Itisfoundthatthereactorsizesignificantlydependsonthewallreflectioncoefficientofthesynchrotronradiationandoftheimpuritycontaminations.ThesecondaryreactionbetweenD-DthatpromptlyleadstotheD-Treactionproducing14MeVneutronsisalsoestimated.ComparisonofthisD-3HeSTreactorwiththeD-Treactorismade.

  • 标签: 核等离子体特征 球形托卡马克 核聚变 核燃料添加 频率同步
  • 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.

  • 标签: DERIVATIVE ABSORPTION SPECTROMETRY information fusion ethanol-gasoline
  • 简介:ThispaperproposesaPCAandKPCAself-fusionbasedMSTARSARautomatictargetrecognitionalgorithm.Thisalgorithmcombinesthelinearfeatureextractedfromprincipalcomponentanalysis(PCA)andnonlinearfeatureextractedfromkernelprincipalcomponentanalysis(KPCA)respectively,andthenutilizestheadaptivefeaturefusionalgorithmwhichisbasedontheweightedmaximummargincriterion(WMMC)tofusethefeaturesinordertoachievebetterperformance.Thelinearregressionclassifierisusedintheexperiments.Theexperimentalresultsindicatethattheproposedself-fusionalgorithmachieveshigherrecognitionratecomparedwiththetraditionalPCAandKPCAfeaturefusionalgorithms.

  • 标签: 目标识别算法 KPCA MSTAR SAR 非线性特征提取 核主成分分析
  • 简介:Anumericalmethodprovidingtheoptimallaserintensityprofilesforadirect-driveinertialconfinementfusionschemehasbeendeveloped.Themethodprovidesanalternativeapproachtophase-spaceoptimizationstudies,whichcanprovecomputationallyexpensive.ThemethodappliestoagenericirradiationconfigurationcharacterizedbyanarbitrarynumberNBoflaserbeamsprovidedthattheyirradiatethewholetargetsurface,andthusgoesbeyondpreviousanalyseslimitedtosymmetricconfigurations.Thecalculatedlaserintensityprofilesoptimizetheilluminationofasphericaltarget.Thispaperfocusesondescriptionofthemethod,whichusestwosteps:first,thetargetirradiationiscalculatedforinitialtriallaserintensities,andtheninasecondsteptheoptimallaserintensitiesareobtainedbycorrectingthetrialintensitiesusingthecalculatedillumination.AlimitednumberofexampleapplicationstodirectdriveontheLaserMegaJoule(LMJ)aredescribed.

  • 标签: direct drive INERTIAL CONFINEMENT fusion laser
  • 简介:Toaimattheproblemthatthehorizontaldirectivityindexofthevectorhydrophoneverticalarrayisnothigherthanthatofavectorhydrophone,thehigh-resolutionazimuthestimationalgorithmbasedonthedatafusionmethodwaspresented.TheproposedalgorithmfirstemploysMUSICalgorithmtoestimatetheazimuthofeachdividedsub-bandsignal,andthentheestimatedazimuthsofmultiplehydrophonesareprocessedbyusingthedatafusiontechnique.Thehigh-resolutionestimatedresultisachievedfinallybyadoptingtheweightedhistogramstatisticsmethod.TheresultsofthesimulationandseatrialsindicatedthattheproposedalgorithmhasbetterazimuthestimationperformancethanMUSICalgorithmofasinglevectorhydrophoneandthedatafusiontechniquebasedontheacousticenergyfluxmethod.Thebetterperformanceisreflectedintheaspectsoftheestimationprecision,theprobabilityofcorrectestimation,thecapabilitytodistinguishmulti-objectsandtheinhibitionofthenoisesub-bands.

  • 标签: 估计算法 高分辨率 方位角 融合法 矢量水听器 数据融合技术
  • 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.

  • 标签: GF-1 satellite IMAGE FUSION methods FUSION
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  • 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。

  • 标签: 卡尔曼滤波器 多传感器系统 融合算法 数值积分 自适应 平方根
  • 简介:<正>9月23日,甲骨文OpenWorld大会旧金山现场及COSTAMESA,Emulex公司宣布,第五代EmulexLightPulse光纤通道(FC)主机总线适配器(HBA)已获得Fusion-io认证,可用于IONDataAccelerator存储产品。甲骨文公司在OpenWorld大会上展示的解决方案中也集成了EmulexLightPulseGen5FCHBA。

  • 标签: 光纤通道 甲骨文 认证 五代 总线适配器 存储产品
  • 简介:Directsimulationof3-DMHD(magnetohydrodynamics)flowsinliquidmetalfusionblanketwithflowchannelinsert(FCI)hasbeenconducted.Twokindsofpressureequilibriumslot(PES)inFCI,whichareusedtobalancethepressuredifferencebetweentheinsideandoutsideofFCI,areconsideredwithaslotinHartmannwalloraslotinsidewall,respectively.ThevelocityandpressuredistributionofFCImadeofSiC/SiC_farenumericallystudiedtoillustratethe3-DMHDfloweffects,whichclearlyshowthatt...

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  • 简介:Inthisstudyalumbarspinalfusionanimalmodelisestablishedtoassesstheeffectofspinalfusioncage,andexploretheminimumarearatiooftitaniumcagesectiontovertebralsectionthatensuresbonehealingandbiomechanicalproperty.Lumbarcorpectomywasconductedbyposterolateralapproachwithtitaniumcageimplantationcombinedwithplatefixation.Titaniumcageswiththesamelengthbutdifferentdiameterswereused.Afterimplantationoftitaniumcages,theprogressofbonehealingwasobservedandthebonebiomechanicalpropertiesweremeasured,includingdeformationanddisplacementinaxialcompression,flexion,extension,andlateralbendingmotion.Thefactorsaffectingtheinvivogrowthofspinesupportingbodywereanalyzed.Theresultsshowthatthearearatiooftitaniumcagesectiontovertebralsectionshouldreach1/2toensurethebonehealing,sufficientboneintensityandbiomechanicalproperties.Somebonehealingindicators,suchasBMP,suggestthatthereisarelationshipbetweenthepeaktimeandthepeakvalueofboneformationandmetabolismmarkersandthebonehealingstrength.

  • 标签: LUMBAR CORPECTOMY titanium cage implantation spinal
  • 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。

  • 标签: 转基因抗虫植物 刺吸式害虫 融合蛋白 GNA 植物表达 毒性
  • 简介:γ-ray in 25 MeV/u 40Ar+115In and 103Rh Fusion-fission Reactionsγ-rayin25MeV/u40Ar+115Inand103RhFusion-fissionR...

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  • 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.

  • 标签: 原子光刻 铬原子 会聚激光 VirtualLab Fusion平台
  • 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.

  • 标签: 非病毒基因载体 小麦基因 重组蛋白 融合蛋白 转染 病毒DNA