简介：<正>为推动科贸、技贸结合,加快科研成果产业化、商品化,促使我国科研院所的科技产品参与国际市场竞争,外贸部、国家科委决定赋予包括邮电部武汉

简介：Jointlocationandscalemodelsoftheskew-normaldistributionprovideusefulextensionforjointmeanandvariancemodelsofthenormaldistributionwhenthedatasetunderconsiderationinvolvesasymmetricoutcomes.Thispaperfocusesonthemaximumlikelihoodestimationofjointlocationandscalemodelsoftheskew-normaldistribution.Theproposedprocedurecansimultaneouslyestimateparametersinthelocationmodelandthescalemodel.Simulationstudiesandarealexampleareusedtoillustratetheproposedmethodologies.

简介：ＩｎｅｒｔｉａｌＰａｒａｍｅｔｅｒｓｉｎＩｄｅｎｔｉｃａｌａｎｄＮｏｎ－ｉｄｅｎｔｉｃａｌＢａｎｄｓａｔＮｏｒｍａｌＤｅｆｏｒｍａｔｉｏｎＺｈａｎｇＪｉｎｇｙｅ；Ｉ．ＲａｇｎａｒｓｓｏｎａｎｄＬ．Ｌ．Ｒｉｅｄｉｎｇｅｒ（Ｄｅｐａｒｔ...

简介：有从50nm变化到600nm的不同厚度的钽薄电影被收音机频率磁控管作为免职温度(T)和偏爱电压(Ub)的功能劈啪作响在Si底层上扔。表面粗糙和它的动态进化行为是使用原子力量显微镜学(AFM)调查的份量上。与从300K增加T到600K，表面粗糙Rrms和动态代表逐渐地减少。随到-150V，Rrms和第一减少的从0V的Ub的增加然后增加。电影表面进化上的T和Ub的依赖以表面散开，墩生长，和离子侵犯效果被讨论了。

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简介：计算机图形和人的计算机相互作用的许多最近的应用程序作为输入设备采用了颜色照相机和深度照相机。因此，拿不同颜色和深度的硬件的两种类型的有效刻度输入被要求。我们的途径移开在明确地象在深度和颜色照相机之间的转变一样解决照相机intrinsics的以前的方法使用非线性的优化的数字困难。混合参数的一个矩阵被介绍线性化我们的优化。混合参数从深度提供转变参量的空格(深度照相机图象)到一种颜色由从深度照相机联合深度照相机和旋转转变的内在的参数到颜色的参量的空格(颜色照相机图象)照相机。旋转转变和内在的参数能明确地在标准QRfactorisation的帮助下从我们的混合参数被计算。我们与地面真相深度信息被微软Kinect捕获的综合数据和真实世界的数据测试我们的算法。当由于使用混合参数的优点花少得多计算时间(Herreras方法的1/50和Raposos方法的1/10)时，实验证明我们的途径能向刻度的可比较的精确性提供最先进的算法。

简介：为模仿air-to-refrigerantfin-and-tube蒸发器的稳定的州的行为的一个一般、简单的模型在试管内与详细流动模式的焦点被介绍。为了模仿热，在空气和工作液体之间转，蒸发器被划分成很多控�

简介：１ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｔｈｅｏｒｙｏｆｇｅｏｍｅｔｒｉｃｃｏｎｔｉｎｕｉｔｙａｎｄｉｔｓａｐｐｌｉｃａｔｉｏｎｓｈａｖｅａｔｒａｃｔｅｄｃｏｎｓｉｄｅｒａｂｌｅａｔｅｎｔｉｏｎｉｎｔｈｅｃｉｒｃｌｅｓｏｆＣＡＤ／ＣＡＧＤ［１，２，３，９，１...

简介：Theglidingarccanofferhighenergyefficiencyandselectivityforchemicalreactionsandhasbeenwidelyappliedinmaterialprocessing,environmentalprotectionandotherindustrialareas.Butthedischargeproperties,measurementofplasmaparametersandrelatedphysicalpro-cessesoftheglidingarcdischargestillneedtofurtherstudied.Inthisstudy,theglidingarcwasdrivenbythetransversemagneticfieldtoproducethenon-equilibriumplasmaathighpressure.Theparametersoftheplasmaatourobservedpointweremeasuredbyopticalmethods.Theexperimentalresultshowsthattheelectrontemperatureisabout0.6eVandtheheavyparticletemperatureisapproximately2987±250K.

简介：Inthispaper,globalrobuststabilityofuncertainstochasticrecurrentneuralnetworkswithMarkovianjumpingparametersisconsidered.AnovelLinearmatrixinequality(LMI)basedstabilitycriterionisobtainedtoguaranteetheasymptoticstabilityofuncertainstochasticrecurrentneuralnetworkswithMarkovianjumpingparameters.TheresultsarederivedbyusingtheLyapunovfunctionaltechnique,LipchitzconditionandS-procuture.Finally,numericalexamplesaregiventodemonstratethecorrectnessofthetheoreticalresults.Ourresultsarealsocomparedwithresultsdiscussedin[31]and[34]toshowtheeffectivenessandconservativeness.

简介：EstimationofThomsen＇sanisotropicparametersisveryimportantforaccuratetime-to-depthconversionanddepthmigrationdataprocessing.Comparedwithothermethods,itismucheasierandmorereliabletoestimateanisotropicparametersthatarerequiredforsurfaceseismicdepthimagingfromverticalseismicprofile（VSP）data,becausethefirstarrivalsofVSPdatacanbepickedwithmuchhigheraccuracy.Inthisstudy,wedevelopedamethodforestimatingThomsen＇sP-waveanisotropicparametersinVTImediausingthefirstarrivalsfromwalkawayVSPdata.Modelfirst-arrivaltraveltimesarecalculatedonthebasisofthenear-offsetnormalmoveoutcorrectionvelocityinVTImediaandraytracingusingThomsen＇sP-wavevelocityapproximation.Then,theanisotropicparameters0andearedeterminedbyminimizingthedifferencebetweenthecalculatedandobservedtraveltimesforthenearandfaroffsets.Numericalforwardmodeling,usingtheproposedmethodindicatesthaterrorsbetweentheestimatedandmeasuredanisotropicparametersaresmall.Usingfielddatafromaneight-azimuthwalkawayVSPinTarimBasin,weestimatedtheparameters0andeandbuiltananisotropicdepth-velocitymodelforprestackdepthmigrationprocessingofsurface3Dseismicdata.Theresultsshowimprovementinimagingthecarbonatereservoirsandminimizingthedeptherrorsofthegeologicaltargets.

简介：Asadepositiontechnology,gasmetalarcwelding(GMAW)hasshownnewpromiseforrapidprototypingofmetallicparts.DuringtheprocessofmetalformingusingthearcofGMAW,lowheatinputandstabledroplettransitionarecriticaltohighqualityfiguration.TheeffectsofvariousprocessingparametersonfigurationqualitywerestudiedintheexperimentofGMAWrapidprototypingusingthewireofER50-6,includingweldingvoltage,wirefeedingrate,weldingspeedandsoon.TheoptimalparametersforER50-6areobtained.Simultaneously,itisverifiedthattherapidprototypingpartswithfavorablestructuresandqualitycanbeachievedundertheconditionsoflowheatinputandstabledroplettransition.

简介：AnelectroncyclotronresonanceheatingsystemwillbeconstructedinthenearfutureforECHandECCDinvestigationonHL-2Atokamak.ThenewECRHsystemwillprovideHL-2Awithapowercapabilityof1MWfor1satfrequencyof70GHz.Consequently,itisveryimportanttochooseasuitablegyrotronandsomecomponentsforHL-2AECRHsystem.

简介：ＲｅｓｅａｒｃｈｏｆｐａｔｔｅｒｎｄｙｎａｍｉｃｓｐａｒａｍｅｔｅｒｓｏｆｃｒｕｓｔａｌｄｅｆｏｒｍａｔｉｏｎｆｉｅｌｄｉｎｓｅｉｓｍｏｇｅｎｉｃｐｒｏｃｅｓｓＳｈｕｏ－ＹｕＺＨＯＵ（周硕愚），ＹｕｎＷＵ（吴云），Ｒｕｏ－ＢｏＷＡＮＧ（王若柏）ａｎｄ...

简介：Ininjectionmouldingproduction,thetuningoftheprocessparametersisachallengingjob,whichreliesheavilyontheexperienceofskilledoperators.Inthispaper,takingintoconsiderationoperatorassessmentduringmouldingtrials,anovelintelligentmodelforautomatedtuningofprocessparametersisproposed.Thisconsistsofcasebasedreasoning(CBR),empiricalmodel(EM),andfuzzylogic(FL)methods.CBRandEMareusedtoimitaterecallandintuitivethoughtsofskilledoperators,respectively,whileFLisadoptedtosimulatetheskilledoperatoroptimizationthoughts.First,CBRisusedtosetuptheinitialprocessparameters.IfCBRfails,EMisemployedtocalculatetheinitialparameters.Next,amouldingtrialisperformedusingtheinitialparameters.ThenFLisadoptedtooptimizetheseparametersandcorrectdefectsrepeatedlyuntilthemouldedpartisfoundtobesatisfactory.Basedontheabovemethodologies,intelligentsoftwarewasdevelopedandembeddedinthecontrollerofaninjectionmouldingmachine.Experimentalresultsshowthattheintelligentsoftwarecanbeeffectivelyusedinpracticalproduction,anditgreatlyreducesthedependenceontheexperienceoftheoperators.

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简介：BackgroundStudieshaveshownthatmiRNA-155playedanimportantroleintheprocessofdevelopmentofhypertension.However,thereisnodateaboutmiRNA-155andbloodpressuremonitoringparameters.Therefore,weexaminedwhetherinhypertensivepatientstheexpressionlevelofplasmamiRNA-155relatedto24-hambulatorybloodpressuremonitoring(ABPM)parameters.MethodsAcohortofadultpatientsscheduledtoreceivephysicalexamination,officeandambulatorybloodpressuremonitoring.Quantitativereversetranscriptasepolymerasechainreaction(qRT-PCR)wasusedtoevaluatetheexpressionofselectedmiRNA-155.ThemiRNA-155expressionlevelcorrelationbetweenbloodpressureparameterswasassessedusingtheSpearmancorrelationcoefficient.ResultsFiftyfouressentialhypertensionpatients(25men;meanage,53.28±9.52years)andthirtyhealthyvolunteers(15men;meanage,53.03±5.87years)wereincluded.WeobservedhigherexpressionlevelofmiRNA-155(32.31±2.85vs27.21±1.59,P<0.001)inhypertensivepatientscomparedtohealthycontrolindividuals.MiRNA-155expressionlevelshowedsignificantpositivecorrelationwith24hDaytimeSBP(r=0.681,P<0.001),24hDaytimeDBP(r=0.473,P<0.001),24hDaytimePP(r=0.565,P<0.001)anddipping(r=0.257,P=0.018),respectively.ConclusionsOurstudyshowedthatmiRNA-155expressionlevelwasassociatedpositivelywithdaytimebloodpressuremonitoringparameters,aswellasbloodpressurevariability,indicatingapossibleimplicationofmiRNA-155inthepathogenesisofhypertension.

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简介：Electrondensity(Ne)inaglowdischargeplasmaforthesurfacealloyingtechniqueisdiagnosedbyopticalemissionspectrometry(OES).WithCH_4asthefeedinggas,NeisobtainedbycomparingtheHβspectrumaccordingtotheStarkbroadeningeffect.ItisnoticedthatNevarieswiththeworkingpressures(30Pato70Pa)andcathodevoltages(500Vto1000V),respectively.Duetoanabnormalglowdischarge,Neisbetween1.71×10~(15)/cm~3to6.64×10~(15)/cm~3andincreasesrapidlywithworkinggaspressuresandcathodevoltages.TheresultsshowthatOESisausefulmethodtomeasuretheplasmaparametersinasurfacealloyingglowdischargeplasma.

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