简介：Wesolvethelocaluniaxialtensionofaninfiniterodintheframeworkofnon-ordinarystate-basedperidynamics.Thesingularsolutionsofstressanddisplacementareacquired.Whentheinfluencingrangeofthewindowfunctionapproacheszero,thesetwosolutionswillreturntothesolutionsoftheclassicalelasticity.Theanalysisshowsthatthesingularitiesofthesolutionsstemfromsuchafeatureofthewindowfunctionthatmustberepresentedbyarapidlydecreasingfunctioninphysics.Contrarytotheclassicalelasticity,thestresssolutionofperidynamicsissmootherthanthedisplacementsolution.Inaddition,acriterionusedtoselectthewindowfunctionisproposedinthispaper.

简介：Inthispaper,weproposeamethodtodealwithnumericalintegralbyusingtwokindsofC~2quasi-interpolationoperatorsonthebivariatesplinespace,andalsodis-cusstheconvergencepropertiesanderrorestimates.Moreover,theproposedmethodisappliedtothenumericalevaluationof2-Dsingularintegrals.Numericalexper-imentswillbecarriedoutandtheresultswillbecomparedwithsomepreviouslypublishedresults.

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简介：Inviewofthepoorwatersupplysystem'snetworkproperties,thesystem'scomplicatednetworkhydraulicequationswerereplacedbymacroscopicnodalpressuremodelandthemodelofrelationshipbetweensupplyflowandwatersourcehead.Byusingpump-stationpressureheadandinitialtankwaterlevelsasdecisionvariables,themodelofoptimalallocationofwatersupplybetweenpump-sourceswasdeveloped.Geneticalgorithmwasintroducedtodealwiththemodelofoptimalallocationofwatersupply.Methodsforhandlingeachconstraintconditionwereputforward,andovercometheshortcomingsuchasprematureconvergenceofgeneticalgorithm;asolvingmethodwasbroughtforwardinwhichgeneticalgorithmwascombinedwithsimulatedannealingtechnologyandself-adaptivecrossoverandmutationprobabilitieswereadopted.Anapplicationexampleshowedthefeasibilityofthisalgorithm.

简介：二新奇离子的液体，N，N-disalicylideneethylenediaminium醋酸盐和N，N-disalicylideneethylenediaminiumtrifluoroacetate，被红外，1HNMR，DTA-TG和元素的分析准备并且描绘。试验性的结果显示新离子的液体拥有更低的融化的点和更高电的电导率。此处报导的离子的液体是与在阳离子的Schiff基础功能的组一起的离子的液体家庭的第一个成员，是引人注目的。

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简介：我们建议一条新奇途径叫了适应模糊基于蚂蚁的路由(在远处)一组聪明的代理人(或蚂蚁)造在一双节点之间的路径，并发地探索网络并且交换获得的信息更新路由搁置。路由决定能被模糊逻辑技术基于另外的代理人的行为的一个以前的集合构造的当前的网络状态和知识的本地信息做。模糊逻辑技术允许象路径延期和路径利用那样的多重限制以一个简单、直觉的方法被考虑。在远处超过OSPF，AntNet和ASR的模拟试验表演，中的三个当前很重要的最先进的算法以端对端的延期，包交货，和包落下比率。在远处是为在下一代网络的数据的路由的一种有希望的选择。

简介：Inthispaperwestudytheproximalpointalgorithm(PPA)basedpredictioncorrection(PC)methodsformonotonevariationalinequalities.Eachiterationofthesemethodsconsistsofapredictionandacorrection.ThepredictorsareproducedbyinexactPPAsteps.ThenewiteratesarethenupdatedbyacorrectionusingthePPAformula.Wepresenttwoprofitfunctionswhichservetwopurposes:Firstweshowthattheprofitfunctionsaretightlowerboundsoftheimprovementsobtainedineachiteration.Basedonthisconclusionweobtaintheconvergenceinexactnessrestrictionsforthepredictionstep.Secondweshowthattheprofitfunctionsarequadraticallydependentuponthesteplengths,thustheoptimalsteplengthsareobtainedinthecorrectionstep.Inthelastpartofthepaperwecomparethestrengthsofdifferentmethodsbasedontheirinexactnessrestrictions.

简介：Inthispaper,weinvestigatethenegativeextremumsoffundamentalfunctionsofLagrangeinterpolationbasedonChebyshevnodes.Moreover,weestablishsomecompanionresultstothetheoremofJ.Szabadosonthepositiveextremum.

简介：Thispapercomprehensivelyinvestigatesthepropertiesofselfphasemodulationbasedopticaldelaysystemsconsistingofdispersioncompensationfibreandhighlynonlinearfibres.Itresearchesintotheimpactsofpowerlevellaunchedintohighlynonlinearfibres,conversionwavelength,dispersionslope,modulationformatandopticalfilterbandwidthontheoverallperformanceofopticaldelaysystems.Theresultsrevealthat,ifthepowerlaunchedintohighlynonlinearfibresisfixed,thetimedelaygenerallyvarieslinearlywiththeconversionwavelength,butjumpsintermittentlyatsomeconversionwavelengths.However,thetimedelayvariessemi-periodicallywiththepowerlaunchedintohighlynonlinearfibres.Thedispersionslopeofhighlynonlinearfibreshassignificantinfluenceonthetimedelay,especiallyforthenegativedispersionslope.Thetimedelaydifferswithmodulationformatsduetothedifferentcombinedinteractionofnonlinearityanddispersioninfibres.Thebandwidthoftheopticalfiltersalsogreatlyaffectsthetimedelaybecauseitdeterminesthebandwidthofthepassedsignalintheselfphasemodulationbasedtimedelaysystems.Theoutputsignalqualityoftheoveralltimedelaysystemsdependsontheconversionwavelengthandinputpowerlevel.Theoptimisationofthepowerlevelandconversionwavelengthtoprovidethebestoutputsignalqualityismadeattheendofthispaper.

简介：Catalystplaysanimportantroleindirectcolaliquefaction(DCL)^[1],Duetorelativelyhighactivity,lowcostandenvironmentallybenignfordisposal,ironcatalystsareregardedasthemostattractivecatalystsforDCL.Tomaximizecatalyticeffectandminimizecatalystusage,ultra-finesizecatalystsarepreferred.Themosteffectivecatalystsarefoundtobethoseimpregnatedontocoalbecauseoftheirhighdispersiononcoalsurfaceandintimatecontactwithcoalparticles.

简介：Inthispaper,weproposeasparseovercompleteimageapproximationmethodbasedontheideasofovercompletelog-Gaborwavelet,meanshiftandenergyconcentration.Theproposedapproximationmethodselectsthenecessarywaveletcoefficientswithameanshiftbasedalgorithm,andconcentratesenergyontheselectedcoefficients.Itcansparselyapproximatetheoriginalimage,andconvergesfasterthantheexistinglocalcompetitionbasedmethod.Then,weproposeanewcompressionschemebasedontheaboveapproximationmethod.TheschemehascompressionperformancesimilartoJPEG2000.TheimagesdecodedwiththeproposedcompressionschemeappearmorepleasanttothehumaneyesthanthosewithJPEG2000.

简介：拿估计到达的方向被介绍的进报道的在数组元素之中的相互的联合的一个multi-subarraysubspace试穿方法。一致线性数组的相互的联合矩阵与banded被建模对称的Toeplitz矩阵。根据相互的联合矩阵的DOF(自由的度)，在二个方面的数组元素的部分被忽视。精神算法的理论特征，适合算法的subspace之一，被学习。为大N和一致线性数组，MCLS精神评价错误是asymptotically，联合，与零个工具散布的Gaussian，和它的协变性表达式被获得。它从模拟被知道在那里存在当当它的变化有一些增加时，相互的联合不存在时，有为数组元素和信号来源的某些数字的最低评价错误的subarray，和它估计到达的方向的性能接近理想的状况。方法与高分辨率被用于深测术的sidescan声纳，并且好结果被获得了。以增加数组元素的数字的成本，方法能减少在数组元素之中的相互的联合的爱。

简介：Anultrasensitivemetamaterialsensorbasedondouble-slotverticalsplitringresonators(DVSRRs)isdesignedandnumericallycalculatedintheterahertzfrequency.ThisDVSRRdesignproducesafundamentLCresonancewithaqualityfactorofabout20whentheincidencemagneticfieldcomponentnormaltotheDVSRRarray.TheresonantcharacteristicsandsensingperformanceoftheDVSRRarraydesignaresystematicallyanalyzedemployingacontrastmethodamongthreesimilarverticalsplitringresonator(SRRs)structures.Theresearchresultsshowthattheeliminationofbianisotropy,inducedbythestructuralsymmetryoftheDVSRRdesign,helpstoachieveLCresonanceofahighqualityfactor.LiftingtheSRRsupfromthesubstratesharplyreducesthedielectriclossintroducedbythesubstrate.AllthesefactorsjointlyresultinsuperiorsensitivityoftheDVSRRtotheattributesofanalytes.Themaximumrefractiveindexsensitivityis788GHz/RIUor1.04×10~5nm∕RIU.Also,theDVSRRsensormaintainsitssuperiorsensingperformanceforfabricationtolerancerangingfrom-4%to4%andwiderangeincidenceanglesupto50°underbothTEandTMilluminations.

简介：Realizationofefficientyellow-light-emittingdiodes(LEDs)hasalwaysbeenachallengeinsolid-statelighting.Greatefforthasbeenmade,butonlyslightadvancementshaveoccurredinthepastfewdecades.AftercomprehensiveworkonInGaN-basedyellowLEDsonSisubstrate,wesuccessfullymadeabreakthroughandpushedthewall-plugefficiencyof565-nm-yellowLEDsto24.3%at20A∕cm~2and33.7%at3A∕cm~2.ThesuccessofyellowLEDscanbecreditedtotheimprovedmaterialqualityandreducedcompressivestrainofInGaNquantumwellsbyaprestrainedlayerandsubstrate,aswellasenhancedholeinjectionbya3DpnjunctionwithV-pits.

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简介：Anewmethodforstructuraldamageidentificationispresentedbasedonperturbationsofcurvaturemodeshapeandfrequency.Firstly,thestructure'smassandstiffnessmatricesareexpressedasfunctionsofitselements'physicalparameters,whichreflecttheirdamagestates.Accordingtodifferencesinthecurvaturemodeshapeofthestructureinundamagedanddamagedstates,possibledamageequationsanddetermineddamageequationsareestablishedandusedtosolvefortheelements'damageparameters.Then,toensuretheaccuracyoftherecognitionresult,areasonablesolutionissubstitutedintoadamage-checkingequationbasedonthechangeoffrequencyofthedamagedstructure.Numericalexamplesareusedtoshowthat,toidentifythedamage,onlyoneordermodeneedstobetested.Whenthedegreeofdamageislow,first-orderperturbationequationscanbeusedtorecognizethedamagewithsufficientaccuracy.Iftheextentofthedamageishigh,second-orderperturbationequationscanbeusedtoprovidemoreaccurateidentificationresults.

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简介：Sandblastingmachinesarewidelyusedinchemical,mechanicalandotherengineeringfields.Theinternalflowfieldofthesandblastingmachinebelongstoacomplexgas-solidtwo-phaseflow,andimpactbythecontinuousabrasivesandcancausethemachinetowearorevenfail.Inthisstudy,theEDEM-FLUENTcouplingmethodwasusedtocalculatethetransientflowfieldofthegasphaseandthemotion,dynamicandcollisioncharacteristicsofthesand.Airinthesandblastingmachinewastreatedastheidealgasandthecontinuousphase.Thesandwasregardedasthediscretephasesolidinthecomputation.UsingtheArchardwearmodel,thewearamountofthesandblastingmachinewascalculatedandthewearlawwasanalysed,toprovideatheoreticalbasisforoptimisingthedesignandoperationmethodoftheblastingmachine.