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190 个结果
  • 简介:AnewSuboptimalMaximumLikelihoodEstimation(SMLE)algorithmbasedonfull-derampmodelanditsimplementationinsatellite-borneradaraltimeterarepresented,withemphasisontheinfluenceofboththereturnfluctuationandthereceivernoiseonheightandslopeestimationprecision.Someconclusionsareobtainedandverifiedbycomputersimulation.

  • 标签: Satellite-borne RADAR ALTIMETER Signal processing SMLE
  • 简介:Thispaperdealswithanimportantsubjectofrejectingtheabnormaldataintelligentlyinthedynamicdatasystem.Basedontheprincipleofnearestneighboroffuz-zymathematics,anapproachofmathematicallyabstractingthehumanthinkingandphys-icalpracticeknowledgeisdiscussed,anewmethodofautomaticrejectionofabnormalda-taisthenproposed.Theexperimentalresultsshowthatthemethodisavailabletothepractice.

  • 标签: ABNORMAL DATA MEMBERSHIP FUNCTION FUZZY DISTANCE
  • 简介:在钨卤素灯的安排和晶片收到的发光的一致性之间的关系被讨论,并且一种axial-symmetricallamps-array被设计保证边上的照耀是近似一样的著名计算机生产厂商他晶片的中心上的。晶片对力量oftungsten卤素灯上的温度的大小数字地被计算。

  • 标签: 大直径晶片 快速热处理 钨卤素灯 退火处理
  • 简介:Thispaperdevotedtofindingprocessingmethodsofalkalinehydrolysateproducedfromricehuskpre-extraction,anddiscussesalkalinehydrolysateprocessingschemedanddisengagementofsomeproducts:amorphoussilicaofvariousquality,alkalinelignin,andwaterandalkalineextractionpolysaccharides.Silicasampleswerecharacterized:crude(air-dried),burnt(nopreliminarywatertreatment),washedindistilledwater,andwashedindistilledwaterandburnt.Wastewaterparametersupontheextractionofsolidsfromalkalinehydrolysatedroppedafewdozensorthousandtimesdependingontheappliedprocessingmethod.Colordecreasedafewthousandtimes,turbiditywasvirtuallyeliminated,chemicaloxygendemandedabout20–136times;polyphenolscontentmightdecrease50%orbevirtuallyeliminated.Themostprospectiveschemeobtainedthetwofollowingsolidproductsfromricehuskalkalinehydrolysate:amorphoussilicaandalkalineextractionpolysaccharide.Chemicaloxygendemandoftheremainingwastewaterdecreasedabout140timescomparedtothesilica-freesolution.

  • 标签: 碱性水解 水解物 加工方法 无定形二氧化硅 化学需氧量 预处理方法
  • 简介:Approximatequeryprocessinghasemergedasanapproachtodealingwiththehugedatavolumeandcomplexqueriesintheenvironmentofdatawarehouse.Inthispaper,wepresentanovelmethodthatprovidesapproximateanswerstoOLAPqueries.Ourmethodisbasedonbuildingacompressed(approximate)datacubebyaclusteringtechniqueandusingthiscompresseddatacubetoprovideanswerstoqueriesdirectly,soitimprovestheperformanceofthequeries.WealsoprovidethealgorithmoftheOLAPqueriesandtheconfidenceintervalsofqueryresults.AnextensiveexperimentalstudywiththeOLAPcouncilbenchmarkshowstheeffectivenessandscalabilityofourcluster-basedapproachcomparedtosampling.

  • 标签: OLAP 数据处理 决策支持系统
  • 简介:Usingtheextremedifferenceofself-similarityandkurtosisatlargelevelscaleofwavelettransformapproximationbetweenthePTFM(PulseTrainsofFrequencyModulated)signalsanditsreverberation,afeature-basedmatchedfiltermethodusingtheclassify-before-detectparagriamisproposedtoimprovethedetectionperformanceinreverberationandmultipathenvironments.Processingthedataoflake-trailsshowedthattheprocessinggainoftheproposedmethodisbiggerthanthatofmatchedfilterabout10dB.Inmultipathenvironments,detectionperformanceofmatchedfilterbecomebadlypoorer,whilethatoftheproposedmethodisimprovedbetter.Itshowsthatthemethodismuchmorerobustwiththeeffectofmultipath.

  • 标签: 多尺度特征 匹配滤波器 PTFM 脉冲最优化 密度函数
  • 简介:Throughanevent-relatedpotential(ERP)study,weexaminedtheprocessingmechanismsoffourtypesofChinese(Mandarin)relativeclauses(RCs),namelysubjectsubject-extractedrelativeclause(SSR),subjectobject-extractedrelativeclause(SOR),objectsubject-extractedrelativeclause(OSR),andobjectobject-extractedrelativeclause(OOR)totesttheuniversalityandlanguagespecificityofRCcomprehensionprocesses.Theresultsofthisstudysupportapreferenceforobject-extractedRCsmodifyingboththesubjectandobjectofasentence,i.e.,SORsandOORs.Inparticular,ERPresultsshowedstrongerP600effectsintheRCregionforSSRscomparedwithSORs,whichwearguereflectsacanonicalwordordertheory.StrongerN400effectswereobservedforverbscomparedwithnouns,reflectingeasierunderstandingfornouns.ERPresultsfromthematrixclauseobjectandtherelativizer'de'showedstrongerP600effectsinSSRscomparedwithSORs,suggestingthematicstructureeffectsonsyntacticconstructionandtheprocessingpreferenceofthewholesentence.

  • 标签: ERP 偏好 加工 主题提取 汉语 事件相关电位
  • 简介:BeamalignmentdependsonCCDreal-timeimageanalysisandprocessing.Inordertoimprovethequalityofthealignment,multiplefiltersareusedinfar-fieldandnear-fieldimageprocessings.Thesemultiplefiltersareconstitutedofanaveragefilterandamedianfilterindifferentconnectionsequences,sothattheycandealwithdifferentkindsofnoise.Toreducetheeffectoftheunknownnonlinearrelationshipbetweenmotorrunningstepsanddeviationpixels,afeasiblemethodologyisofferedtoimprovethisphenomenonandafuzzyalgorithmisappliedtothemotorfeedbackcontrolprocess.Becauseofthefuzzycontrolitisnotnecessarytoestablishanaccuratemathematicalmodel,sotheimpactofthenonlinearrelationshipwillbereduced.

  • 标签: ALIGNMENT FUZZY control IMAGE processing MULTIPLE
  • 简介:Ajobshopschedulingproblemwithacombinationprocessingincomplexproductionenvironmentisproposed.Basedonthedefiningof'non-elasticcombinationprocessingrelativity'and'virtualprocess',theproblemcanbesimplifiedandtransformedtoatraditionalone.Onthebasisofthedispatchingrulesselectengineandconsideredfactorsofcomplexproductionenvironment,aheuristicmethodisdesigned.ThealgorithmhasbeenappliedtoamouldenterpriseinShenzhenforhalfayear.Thepracticeshowedthatbyusingthemethodsuggestedthenumberofdelayedorderswasdecreasedabout20%andtheproductivitywasincreasedby10to20%.

  • 标签: 作业车间调度问题 启发式算法 联合处理 SHOP JOB 生产环境
  • 简介:因为表示每份object.In订单解决这个问题使用明确的形式,古典不平的集合不能在决定过程显示出模糊和目标的重要性,这份报纸第一介绍每个目标在有会员度显示出它的模糊的一张特殊决定桌子并且被分配了重量在决定procedure.Then显示出它的重要性,特殊决定桌子被学习,同时,相关不平的集合模型被提供相关definitio

  • 标签: 决策表粗糙集 粗糙集模型 模糊性 属性约简算法 加权 决策过程
  • 简介:Weproposeaschemetoengineeranon-localtwo-qubitphasegatebetweentworemotequantum-dotspins.Alongwithone-qubitlocaloperations,onecaninprincipalperformvarioustypesofdistributedquantuminformationprocessing.Theschemeemploysaphotonwithlinearlypolarisationinteractingoneaftertheotherwithtworemotequantum-dotspinsincavities.Duetotheopticalspinselectionrule,thephotonobtainsaFaradayrotationaftertheinteractionprocess.Bymeasuringthepolarisationofthefinaloutputphoton,anon-localtwo-qubitphasegatebetweenthetworemotequantum-dotspinsisconstituted.Ourschememayhasveryimportantapplicationsinthedistributedquantuminformationprocessing.

  • 标签: 量子信息处理 自旋极化 量子点 分布式 法拉第旋转 相互作用
  • 简介:处理的大数据正在成为数据中心计算的固执己见者部分。然而,最近的研究显示了大数据工作量不能充分利用现代记忆系统。我们发现处理的大数据的戏剧的无效从缓存失误的庞大的数量和看情况的存储器存取的货摊。在这篇论文,我们介绍二优化处理这些问题。第一是slice-and-merge策略,它减少种类过程的缓存失误率。第二优化是direct-memory-access,它改革在钥匙/值的存储使用的数据结构。这些优化被评估与微基准并且真实世界的基准HiBench。结果我们的微基准清楚地以硬件事件计数表明我们的优化的有效性;并且HiBench的另外的结果显示出1.21X一般水准加速在上申请级。两结果说明那小心的硬件/软件合作设计将改进大数据处理的存储器效率。我们的工作已经集成于为ApacheHadoop的Intel分发。

  • 标签: 数据处理 内存系统 直接存储器访问 基准测试 Apache 高速缓存
  • 简介:ThisstudydescribesanoverviewofthePOSCO'sBaosteel'sshort-flow(BSSF)slagprocessingproject,includingprocessflow,processset-up,equipmentcomposition,auxiliaryfacilitiesandrelevantparameters,aswellasabriefdescriptionofitsapplicationaftercommissioning.

  • 标签: 钢渣处理 应用 技术 熔融 工艺流程
  • 简介:Physicalpropertiesofseawater,suchassalinity,temperature,densityandacousticvelocity,couldbedemarcatedthroughdegradationofenergycausedbywaterabsorption,attenuationandotherfactors.Toovercomethechallengingdifficultiesinthequickmonitoringofthesephysicalproperties,wehaveexploredthehighresolutionmarineseismicsurveytoinstantlycharacterizethem.Basedontheuniquewavefieldpropagatingintheseawater,wehavedevelopedanewapproachtosuppressthenoisecausedbytheshallowseawaterdisturbanceandobtainusefulinformationforestimatingtheseawaterstructure.Thisapproachimprovesseismicdatawithhighsignal-to-noiseratioandresolution.Theseismicreflectionimagingcanmaptheseawaterstructureacoustically.Combinedwiththeknowledgeoflocalwaterbodystructureprofileoveryears,theinstantmodelforpredictingtheseawaterpropertiescouldbebuiltusingtheseismicdataacquiredfromthespeciallydesignedhighprecisionmarineseismicacquisition.Thismodelcanalsobeupdatedwithinstantobservationandthecompletedataprocessingsystem.Thepresentstudyhasthepotentialvaluetomanyapplications,suchas3Dseawatermonitoring,engineeringevaluation,geologicaldisasterassessmentandenvironmentalassessment.

  • 标签: 数据处理系统 地震勘测 海洋学 水体 地震数据采集 海水结构
  • 简介:在这份报纸,环境扫描电子显微镜学(ESEM)被用于描绘矿物质和处理残余(COPR)的铬铁矿矿石的元素分发。测试结果证明忍受Crbrownmillerite发生在COPR粒子的边界,当有在它的结构的Cr(VI)的hydroandradite在内介绍COPR粒子时。方镁石和方解石发生在空隙的区域。Ca,Fe和艾尔在整个COPR粒子是分布式的元素分析表演,和Mg主要在空隙的区域或在粒子表面上存在。Cr的一个更低的内容在COPR粒子是均匀地分布式的,当Cr的稍微更高的集中发生在粒子内时。让Cr从COPR移居将花一相对更长的时间,这被建议,特别为hexavalent铬,因此沥滤的时间和粒子尺寸可以是影响Cr(VI)的版本的二个重要因素。

  • 标签: 元素分布特征 铬铁矿 矿物 环境扫描电子显微镜 粒子分布 残留
  • 简介:一个信号处理方法为高速度在水下图象的声学的传播被介绍。它有二部分。第1部分介绍信号处理为在水下声学的协调通讯。第1部分包括3个技术的点。(1)Doppler移动compensation.Chirp信号在数据包裹之间被插入。在二个拷贝关联函数之间的关联进程给吝啬的Doppler移动的更多的精确评价。然后,它能被采样补偿数据。在适应决定反馈均衡器(DFE)一个适应阶段赔偿者与快,自我优化的最不吝啬的广场(FOLMS)改编算法被利用与第二顺序阶段锁环算法比赔偿者导致更好的运动忍耐。吝啬的Doppler移动赔偿和适应阶段赔偿者的联合的表演相当好。(2)差异combiner(DC)在均衡器之前使用了。combiner和适应DFE基于FOLMS改编算法。这导致减少的计算复杂性和更好的性能。(3)串联了均衡器,涡轮架子编码了调整(TCM)解码器和重复算法。一个新bitsymbol变换器基于软产量Viterbi算法(SOVA)被学习。与传统的决定作比较,编码并且印射算法,在将近2的新变换器罐头还原剂小点错误率(BER)订。第2部分主要在一个柔韧的图象压缩算法附近。基于分离小浪变换并且修理了长度编码,为声学的图象的一个柔韧的压缩算法被学习。算法包括4个技术的点。(1)利用小浪基于转变图象的CDF9/7。(2)分析subband系数的精力分发。合适的转变层数字是3。(3)根据他们的精力分发把不同量子化步用于不同subbands。(4)使用修理了长度编码阻止错误繁殖。结果证明算法在图象质量,压缩率,和大多数之中完成平衡重要,坚韧性到BER。灰色的规模的压缩的位率声学的图象是0.85小点/象素。当BER比10-3低时,图象质量仍然保持好。当BER起床到10-2时,在那里削减一些小脏点。基于提及的上面的信号处理技术,一在水下声学的通讯系统是运作的频率乐队是的

  • 标签: 信号处理 水下声音信号传输 图像 多普勒移位补偿
  • 简介:Thereductionofcarbon/aluminapowdermixtureinaflowingnitrogenstreamwasinve-tigatedbythequantitiativeanalysisofX-raydiffraction.Experimentalresultsindicatedthatthereactionratecouldbeincreasedbyincreasingthenitrogenflowrate,ortreatingtemperature,Theratewasalsofoundtobeincreasedbydecreasingthealuminaparticlesizeandinitialbulkdensity,Andthecalcinedaluminawassup-posedtobethesuitablesourceofaluminumox-idecomparedwiththeothertypesofalumina.ThefinalpowderproductofAlNwasobservedbySEMandanalyzedbyaprticle-sizeanalyzer.

  • 标签: 加工参数 氮化铝 用碳高温还原合成 ALN 耐火材料
  • 简介:贝叶斯的匹配的地处理的一条途径(MFP)在不明确的海洋environment.In被讨论这条途径,无常知识被建模,数组收到的空间、时间的数据是充分used.Therefore,为MFP的机制是found.which很好联合不明确的领域processing.By的基于模型、数据驱动的方法理论推导,模拟分析和在海的试验性的数组数据的确认,我们发现那(1)贝叶斯的匹配的领域pr的基本部件

  • 标签: 叶贝斯理论 逼近 环境 匹配场
  • 简介:PLAispresentlyconsideredasthemostattractivecompoundfortemporarytherapeuticapplicationinthebiomedicalfield.Inthispaperwegiveanoverviewofthepresentknowledgeonthedegradationbehavior,processingtechnologyofPLAanditsapplicationinthefixationofbonefracture.

  • 标签: 骨架材料 聚交酯 降解 骨折固定应用