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312 个结果
  • 简介:TheWebQualityAnalyser(WQA)isanewbenchmarkingtoolforindustry.Ithasbeenextensivelytestedacrossservicesindustries.Fortyfivecriticalsuccessfeaturesarepresentedasmeasuresthatcapturetheuser'sperceptionofservicesindustrywebsites.Thistooldifferstoprevioustools,inthatitcapturestheinformationtechnology(IT)relateddriversectorsofwebsiteperformance,alongwiththemarketing-servicesrelateddriversectors.Thesedriversectorscapturerelevantstructure,functionandperformancecomponents.An'on-off'switchmeasurementapproachdetermineseachcomponent.Relevantcomponentmeasuresscaleintoarelativepresenceoftheapplicablefeature,withafeatureblockdeliveringoneofthesectordrivers.Althoughithousesbothmeasurableandafewsubjectivecomponents,theWQAoffersaprovenandusefulmeanstocomparerelevantwebsites.TheWQAdefineswebsitestrengthsandweaknesses,therebyallowingforcorrectionstothewebsitestructureofthespecificbusiness.WQAbenchmarkingagainstservicesrelatedbusinesscompetitorsdeliversapositionontheWQAindex,facilitatesspecificwebsitedriverratingcomparisons,anddemonstrateswherekeycompetitiveadvantagemayreside.Thispaperreportsonthemarketing-servicesdriversectorsofthisnewbenchmarkingWQAtool.

  • 标签: Benchmarking performance website service analysis COMPARE
  • 简介:AsreportedfromafieldseminaronMJAon-linecoalcompositiondetectionsystem,NDRChasrankedtheMJAsystemwiththekeyandspecialprojectsofciviliannon-powernucleartechnologyindustrialization.MJAdevicedevelopedindependentlybyNanjingDaluZhongdianTechnologyCo.,Ltd.isthefirstfullcoalflow,all-elementandall-indextypeofon-linedetectionsystem.Itwassuccessfullyusedforincomingcoaldetectionofpowerplants.

  • 标签: 野外实验 在线检测系统 煤炭 MJA系统
  • 简介:本文提出一种新的盲均衡和通道辨识方法.该方法基于过采样技术和独立分量分析神经网络进行信道均衡,利用均衡输出序列和高阶累积量,辨识信道参数.与通常的方法相比,该方法网络结构简单,不必利用训练序列.计算机仿真结果表明算法的良好性能

  • 标签: 过采样 盲均衡 高阶统计 独立分量分析
  • 简介:Basedonanalysisofnearinfraredspectralabsorptionofmethane,absorptiontypeopticalfibermethanegassensorwithhighsensitivityusingDFBLDasasourceisdemonstrated.Lightsourcemodulationharmonicmeasurementispresentedinthispaper.Inordertoeliminatethenoise,theratioofthefundamentalandsecond-harmonicsignalsisused.Themathematicalmodelofgasconcentrationharmonicmeasurementisbuiltup.Thedetectionresultofmethaneconcentrationisalsoshown.Experimentshaveprovedasensitivityof28×10-6.

  • 标签: 气敏传感器 在线测量 甲烷 光纤
  • 简介:ManysocialeventsspreadfastthroughtheIntemetandarousewidecommunitydiscussions.Thoseon-linepublicopinionsemergeintodiversetopicsalongthetime.Moreover,thestrengthofthetopicsisfluctuating.Howtocatchbothprimarytopicsandtrendoftopicsovertheshiftingon-linediscussionsarenotonlyoftheoreticalimportanceforscientificresearch,butalsoofpracticalimportanceforsocietalmanagementespeciallyincurrentChina.Totrythecutting-edgetextanalytictechnologiestodealwithunstructuredon-linepublicopinionsandprovidesupportforsocialproblem-solvinginthebigdataeraisworthanendeavour.Thispaperappliesdynamictopicmodel(DTM)toexplorethechangingtopicsofnewpostscollectedfromTianyaZatanBoardofTianyaClub,themostinfluentialChineseBBSinmainlandChina.Byanalysisofthehotandcoldtermstrends,wecatchthetopicsshiftofmainon-lineconcernswithillustrationsoftopicsofschoolbusandenvironmentinDecemberof2011.Analgorithmisproposedtocomputethestrengthfluctuationofeachtopic.Withvisualizedanalysisoftherespectivemaintopicsinseveralmonthsof2012,somepatternsofthetopicsfluctuationontheboardaresummarized.

  • 标签: 发展趋势 社会管理 论坛 公众 联机 强度波动
  • 简介:Thenearly30-yeareconomicgrowthmiraclebringstheconsequenttremendouspoor-richgapleadingstrongdrivesforsocialtransformationincurrentChina.Chinesetopleadershaverealizedtoincreasethepeoples'income,improvequalityoflifeandconstructa'harmonioussociety'askeymissionsespeciallyinrecent10years.Howtomeasureaharmonioussocietyisoneimportanttopicasdifferentmeasuresmayleadtodifferentdevelopmentpolicies.Thispaperoutlinesover10indicesrelevanttomeasureaharmonioussociety.Someareglobalindicators,whilesomearecontributedbydomesticresearchersandarousedebates.Mostofthoseindicatorsrequireconductingsurveysonsocialattitudesundermicrolevels,whichisalwaystimeconsumingwithproblemofdataquality.AsInternettechnologyadvancesprovidewaystorecordanddisseminatefreshcommunityideasandthoughtsconveniently,detectingtopicsoremotionsfromon-linepublicopinionsisbecomingatrendoronesupplementwaytoovercomethosedataacquisitionproblems.Thispaperdiscussesoneapproachtoon-linesocietalriskperceptionusinghotsearchwordsandBBSposts.Suchatrialaimstoprovideanotherwaytosocietalriskperceptiondifferentfromthoseintraditionalsociopsychologystudies.Challengesarealsoindicated.

  • 标签: 社会风险 和谐 测量 当代中国 互联网技术 社会心理学
  • 简介:一个新联机遥远的粒子分析系统基于图象处理被开发了测量microparticles。系统由粒子收集者传感器(PCS)组成,粒子图象传感器(PIS),图象遥远播送模块和图象处理系统。然后,图象处理的一些细节被讨论。这个系统的主要优点在粒子样品收集和粒子图象获得是更方便的。粒子尺寸能与偏差abot用系统被获得没有偏差,不到1m,和粒子数字能被获得。发达系统也对对学术、工业的申请的microparticle的另外的分析方便、万用。

  • 标签: 远程监控系统 图像分析 微粒 图像处理系统 图像传感器 粒子分析
  • 简介:HIRFL-CSRacceleratorfacilityhasbeenoperatingwith3ionsources,whichareLAPECR1,LECR3andSECRAL.Theseionsourcescanprovidedifferentkindsofionswithdifferentenergy.Forexample,LAPECR1mainlyprovidesH+andHe+witheextractionvoltageabove25keV,LECR3canprovidetheionbeamswithlowtomediumchargestates,includingthemetallicionswithlowmass,suchasC^4+,Ar^11+,B^3+,Mg^7+,etc.,whileSECRALaimstoproduceintenseandhighlychargedionbeams,especiallymetallicones,suchlikeKr^19+,Xe^31+,Ni^19+,Bi^31+,U^33+,andsoon.

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  • 简介:Amethodwasdevelopedtorealizequalityevaluationoneveryweld-spotinresistancespotweldingbasedoninformationprocessingofartificialintelligent.Firstly,thesignalsofweldingcurrentandweldingvoltage,asinformationsource,weresynchronouslycollected.Inputpoweranddynamicresistancewereselectedasmonitoringwaveforms.Eightcharacteristicparametersrelatingtoweldqualitywereextractedfromthemonitoringwaveforms.Secondly,tensile-shearstrengthofthespot-weldedjointwasemployedasevaluatingtargetofweldquality.Throughcorrelationanalysisbetweeneverytwoparametersofcharacteristicvector,fivecharacteristicparameterswerereasonablyselectedtofoundamappingmodelofweldqualityestimation.Atlast,themodelwasrealizedbymeansofthealgorithmsofRadialBasicFunctionneuralnetworkandsamplematrixes.Theresultsshowedvalidationsbyasatisfactioninevaluatingweldqualityofmildsteeljointon-lineinspotweldingprocess.

  • 标签: 焊接工艺 焊接法 焊缝 质量
  • 简介:<正>OnNovember2,2005,China’sfirston-linemonitoringdeviceforfair-windvibrationwassuccessfullyinstalledanddebuggedonthe500-kVPing-FeiLineatthesectioncrossingHuaiheRiverinPingwei,AnhuiProvince.Uponauthorization,theoperationsecurityoftheriver-crossingearthingconductorcanbemonitoredonInternetinChina.

  • 标签: installed ANHUI AUTHORIZATION CROSSING installatio
  • 简介:最近的研究证明了联机录像成像是为监视结晶化过程的一种很有希望的技术。当需要柔韧、快、有能力处理的图象分析由于操作象混合和稳固的集中那样的条件的时间的变化改变了图象质量,在为即时靠近环的控制使用这种技术的瓶颈被考虑。因为晶体趋于重叠或属于对方,在高固体的集中的图象分析结果极其挑战性,在晶体之间的边界通常是模糊的。这篇论文论述能有效地处理在高固体的集中拿的图象的一个图象分割算法。方法片断晶体在水晶块的轮廓上沿着主要相关的凹面点属于对方。详细过程在一个热阶段的反应堆用申请被介绍给l-glutamic酸的结晶化。

  • 标签: 分析方法 图象 处理技术 结晶化
  • 简介:LECR4isthefirstECRionsourceusingevaporativecoolingtechnologyintheworld.Itsuniquefeatureisthatthesolenoidsweremadefromsolidsquarecopperwires(3.32mm×5.77mmwithinsulation),andthatallthecoilsareentirelyimmersedintheroomtemperaturecoolant.Thecoilscanproduceamaximumaxialmagneticfieldupto2.5T.LECR4aimstoprovideintensemultiplechargestateionbeamsforSSC-Linacproject-anewLinearinjectorfortheSeparatedSectorCyclotron(SSC).Presently,someionbeamswithdifferentM/QratiohavebeenacceleratedsuccessfullywiththeRFQandDTL,suchas200eμAof16O^5+,200eμAof40Ar^8+,50eμAof209Bi^30+etc.ThemeasuredtransmissionefficiencyofRFQisupto90%.ThelayoutofLECR4ionsourceandtheLEBTisshowninFig.1.

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