简介：疲劳断口图像的纹理具有多样性,对多种纹理混合在一起的纹理图像分割是一大难点。基于二维经验模式分解提出了一种新的疲劳断口图像的分割方法。对图像进行BEMD分解后提取本征模式函数bimf中的纹理能量作为特征：首先,对疲劳断口图像进行BEMD分解,得到一系列的本征模式函数bimf和残差函数;然后,采用Laws纹理能量描述方法分别对bimf和残差提取纹理能量作为特征分量;最后,在最近邻准则下对所得特征分量进行分割。通过对比经典的傅立叶方法,断口图像的分割结果表明该方法对疲劳断口图像的分割具有较好的效果。

简介：通过对TC4钛合金显微组织的金相图片的研究，提出一种对金相定量分析的数字图像处理方法。以ImageJ软件为工具，采用数字图像处理中的图像增强、阈值化、图像分割等数字化处理方法，计算出钛合金组织在不同热处理状态下α相所占比例，以及金相分析中其他的特征参数。研究结果表明：该数字图像处理方法可实现对TC4组织金相图片的处理，在TC4棒材锻件中α相占49.38%，长短轴比为1.458。

简介：Grouplet变换是通过Haar变换实现的一种二维图像多尺度分析技术,拥有根据图像的纹理结构自适应改变基的能力,从而具有较好的稀疏性。与小波变换相比,Grouplet变换在针对纹理复杂的金属断口图像的识别方面具有更优越的性能;将Grouplet变换与关联向量机结合,采用Grouplet熵作为特征,关联向量机作为识别器,提出了一种新的基于Grouplet熵-RVM的航空构件断口图像识别方法。试验表明：该方法结合了Grouplet变换以及关联向量机的优势,在针对222张断口图像的训练与识别中,识别率达到了85.58%,相比Grouplet熵-SVM方法识别速率提高了5倍。

简介：采用超声相控阵检测方法对预制了夹杂和气孔缺陷的奥氏体不锈钢焊缝进行检测，分析了缺陷的相控阵图像与A扫描信号特征。试验采用的是超声相控阵扇型扫查方式，同时用深度定标方法对仪器参数进行了优化，对缺陷的位置及尺寸进行测量并获得了能够判断缺陷类型的图像特征和A信号特征。研究结果表明：超声相控阵方法不但适用于不锈钢焊缝的检测，且具备更大的检测范围及更丰富的检测信息；通过检测图像特征及相关的A信号特征能够对这2类缺陷的位置及类型进行有效评价。

简介：

简介：

简介：[篇名]SignificantincreaseinmachinepartdurabilityandlongevityduetothenewpatentedLincarb,LinterprocessandLinheattechnologies，[篇名]Lasersurfacetreatmentofsteels，[篇名]ForecastingofthePhaseTransformationHardenedZoneandGorrelationInfluenceFactorsintheSurfaceHeatTreatmentbyPlasma，[篇名]Fatigueandfracturebehaviorofalasersurfaceheattreatedmartensitichigh-nitrogentoolsteel，[篇名]Theoreticalmodelsofsurfaceheattreatmentofproductsinsolarfurnaces-1:uniformradiant-energyflux。

简介：

简介：CorrelationbetweentheflnorescentmaterialsproducedbyendosymbioticpseudomonasfluorcscensFPT-9601andmicrobialcontrolofsoil-bornebacterialdiseaseusingthisstrain；CORROSIONOFALUMINUMALLOY2024BYJETFUELDEGRADINGMICROORGANISMS；Developmentandtestingofnewvolatilecorrosioninhibitorsfornultimetalsystems；Developmentofdiscbrakerotorsforheavy-andmedium-dutytrackswithhighthermalfatiguestrength；DimethylSulfideRemovalfromSyntheticWasteGasUsingaFlatPoly(dimethylsiloxane)-CoatedCompositeMembraneBioreactor。

简介：AStudyofMicrobiologicallyInducedCorrosionbySRBonCarbonSteelusingHydrogenPermeation,Alloying,DeoxidizingandInoculatingCastAlloyswithPressedPowderPseudo-MasterAlloys,Anaerobicdigestionforreductionandstabilizationoforganicsolidwasteduringspacemissions:Systemsanalysis,Anaerobicdigestionforreductionandstabilizationoforganicsolidwastesduringspacemissions:Laboratorystudies,AssessmentofmicrobialcommunityvariabilityinreplicatetubularnitrifyingbioreactorsusingPCRandTRFLPanalysis.

简介：Dampingahybridsteppingmotorwithestimatedpositionandvelocity,Gridcurrentregulationofathree-phasevoltagesourceinverterwithanLCLinputfilter,TorsionalinteractionstudiesonpowersystemcompensatedbySSSCandfixedcapacitor,Amultivariablenewcontrolsolutionforincreasedlonglinesvoltagerestorationstabilityduringblackstartup,

简介：[篇名]Magneto-OpticalStudiesoftheCriticalStatesinc-axisOrientedMgB{sub}2ThinFilmandBulkMgB{sub}2/MgNano-Composites，[篇名]TheSoreteffectonconvectioninahorizontalporousdomainundercrosstemperatureandconcentrationgradients，[篇名]Improvingtheanti-seizureabilityofSiCsealinwaterwithRIEtexturing，[篇名]Coppernanoparticleswithinamorphousandcrystallinedielectricmatrices，[篇名]In-linelaserDopplervelocimeterusingfibre-opticBragggratinginterferometricfilters，[篇名]PreparationofaUV-attenuatingagentusingamechanochemicalreaction，[篇名]DesignofanAdaptiveObserverforSensorlessVectorControlofInductionMachinesunderRegeneratingConditions，[篇名]ConflictovernaturalresourcesamongpastoralistsinnorthernKenya:alookatrecentinitiativesinconflictresolution，[篇名]Releasingnitrogenfromammoniatedligninbywhiterotfunguscometabolizesenvironmentalpollutants，[篇名]Onanalogyanddissimilarityofdependenceofstabilityonseveralparametersinflowsimulations，[篇名]Ontheexponentialstabilityofaclassofnonlinearsystemsincludingdelayedperturbations，[篇名]6-indiameterInPsinglecrystalsgrownbythehot-wall，[篇名]Swing-upControlofaTranslationalInvertedPendulumHavingRestrictedTravel，[篇名]RobustPIDRate-BasedControlforPropagationDelayVariation，[篇名]Apracticalapproachforthedesignofmultivariablecontrolsystems，[篇名]Fibersensordetectslithium。

简介：

简介：

简介：[篇名]Doublethermochemicaltreatmentintoolmanufacturingfromstructuralsteel，[篇名]Lifetimepredictionofhelicoptergears:experimentalinvestigationsandcomputermodelling，[篇名]Fluidizedbedapparatusesforthermaltreatmentandclassificationofdispersematerials，[篇名]Experimentalrigofthermochemicaltreatmentscraptires，[篇名]Thermochemicaltreatmentofsteel20khuponcyclictemperaturechanges。

简介：

简介：[篇名]Relationsbetweenfracturetoughness,hardnessandmicrostructureofvacuumheat-treatedhigh-speedsteel，[篇名]Flexiblefurnaceconceptsforvacuumheattreatmentusinghigh-pressuregasquenching，[篇名]Effectofboronmicro-alloyingonmicrostructureandmechanicalpropertiesoffine-grainedCM247LCsuperalloy，[篇名]PROPERTIESOFPOLYCRYSTALSSINTEREDATHIGHPRESSURESFROMDIAMONDNANOPOWDERSPRODUCEDBYDETONATIONANDSTATICSYNTHESES，[篇名]TheEffectsofSteelQuality,VacuumHeatTreatmentQuenchRateandCharpyV-NotchImpactTestTemperatureontheImpactToughnessandMicrostructureofPremiumQualityH-13ToolSteel。

简介：

简介：SY508-3-08[篇名]Stablefuzzycontrolforaclassofnonlinearsystems，SY508-3-09[篇名]Determinationof36{supleft}CIinenvironmentalsamplescollectedintheJCObyAMS，……

简介：[篇名]Heattreatmentoftheweldedjointsformainunitsofseaplatformsinthenorthsea，[篇名]FatigueLifeImprovementofStructuralElementswithFatigueCracks，[篇名]Newmaterialsandproductiontechnologiesforinnovativelightweightconstructions，[篇名]Effectsoftheelectronbeamlocalpost-wellheat-treatmentonthemicrostructureandpropertiesof30CrMnSiNi2Asteelweldedjoints，[篇名]Energyfromelectricresistanceheatersectionsoverthevesselsurfaceatlocalheattreatmentofringwelds。