简介：寒冷/热采购的空气调节(交流)的选择通常关于某些方面担心并且不能揭示这些问题的整个侧面。灰关系分析(GRA)是处理方法与不明确的信息在一个系统分类比较序列和某个引用顺序的关联程度的一个数据。它被用于从四个主要方面评估并且选择交流寒冷/热的来源，它是技术，经济，可靠性，和操作和管理。选择交流寒冷/热的结果与GRA方法采购的案例研究表演能是更合理的并且可使信服。因此，它在加热为设计者提供一条新途径，通气，比较并且评估不同ACcold/heat的空气调节地采购原料。

简介：Howtodealwiththecollaborationbetweentaskdecompositionandtaskschedulingisthekeyproblemoftheintegratedmanufacturingsystemforcomplexproducts.Withthedevelopmentofmanufacturingtechnology,wecanprobeanewwaytosolvethisproblem.Firstly,anewmethodfortaskgranularityquantitativeanalysisisputforward,whichcanpreciselyevaluatethetaskgranularityofcomplexproductcooperationworkflowintheintegratedmanufacturingsystem,ontheabovebasis;thismethodisusedtoguidethecoarse-grainedtaskdecompositionandrecombinethesubtaskswithlowcohesioncoefficient.Then,amulti-objectiveoptimieationmodelandanalgorithmaresetupfortheschedulingoptimizationoftaskscheduling.Finally,theapplicationfeasibilityofthemodelandalgorithmisultimatelyvalidatedthroughanapplicationcasestudy.

简介：Agenetic-optimizationframeworkbasedonthepartialcooperationcommunicationprotocolisproposedforscalablevideocoding(SVC)streamtransmissionundermulti-relayamplifyandforwardcooperativenetworks.Unliketraditionalcooperativetransmissionschemes,thetransmissionmodeforeachcodedunitinthisnewprotocolcanbeswitchedflexiblybetweendirecttransmissionandcooperativetransmission.Obviously,underthisprotocol,thebandwidthefficiencyandtransmissionrobustnesscanbebalancedadaptivelyaccordingtotheprioritylevelofcodedunitsandwirelesschannelfadingcharacteristics.Basedonthis,awell-knowngeneticoptimizationalgorithm-differentialevolutionisexploitedheretofindthejointlyoptimaltransmissionmodes,powerallocationandunequalerrorprotection(UEP)channelcodingstrategiestominimizetheendtoendreconstructedvideodistortion.Extensivesimulationresultsshowthat,comparedwithclassicaloptimalcooperativeUEPtransmissionschemes,theproposedoptimizedtransmissionframeworkbasedonthepartialcooperativeprotocolcanbringsignificantpeak-signal-to-noise-ratio(PSNR)gainsforthereconstructedvideoinavarietyofchannelbandwidth,powerbudgetandtestsequences.

简介：AllfactorsaffectingthePCRsysteminPinusmassonianaLambwereinvestigatedonebyone.TheresultsshowthattheoptimumPCRsystemofEST-SSRwere:2μL10×Buffer(Mg2+Free),30ngtemplateDNA,0.1875mmol/LdNTPs,3.75mmol/LMg2+,8pmolprimerpair,1.0UTaqDNApoly-meraseintotal20μLreactionsystem.Finally,atotalof11isolatesofP.massonianawasusedfortestingthestabilityofthePCRamplification.TheresultsprovethattheoptimumPCRsystemwasstable,reliable,highlyrepetitive.

简介：Amulti-objectivehybridgeneticbasedoptimizationalgorithmisproposedaccordingtothemulti-objectivePropertyofinverseplanning.Itisbasedonhybridadaptivegeneticalgorithmwhichcombinesthesimulatedannealing,usesadaptivecrossoverandmutation,andadoptsnichedtournamentselection.Theresultoftheteatcalculatationdemonstratesthatanexcellentconvergingspeedcanbeachievedusingthisapproach.

简介：Accordingtothespecificationofsuperalloy-stainlesssteelarcbrazingandcharacteristicofthebasemetal,abestfillermetalwhichhasrelativelowermeltingpoint,nicewettability,goodweldforming,andadequateshearstrengthwasresearched.TheexperimentresultsshowthatwettabilityofCuFeMnonthestainlesssteelisverypoor,concomitantwithamassofpurplesootduringtheweldingwhichdeterioratestheworkingcondition.CuSiMnhasthebestwettabilityonboththesuperalloyandstainlesssteel,butthereremainsalotofpitandslagonthesurfaceoftheweldbead.Copper-basedsolderhasthehighestmeltingpointanditswettabilityandclearancefillabilityareweakerthanCuSi3.WettabilityandclearancefillabilityoftheCuSi3arethebestinallthecandidatefillermetals,anditsweldissmoothnessandhashighershearstrength.Foritscomprehensiveability,CuSi3isselectedasthefinalfillermetal.

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简介：Themajoraimscombustionengineersallovertheworldarestrivingatareconservationofenergyandallevia-tionofenvironmentalpollution,forwhichthemonitoringandcontrolofthefurnaceprocessareofprimeimportancetoattainanoptimizedconditionofcombustion.Oxygencontentinfluegasisgenerallyusedasanindicatorofwhethertherightamountofcombustionairissupplied.However,itcannotdirectlyreflectthedegreeofperfectionofthecombustionprocesstakingplaceinthefurnace.OntheotherhandCOisaproductofchemicalreactionwhichdirectlyreflectsthe

简介：Coldstrippingisthemostcommonprocessforcrudeoilsweeteninginoilfieldsparticularlyatoffshoreinstallationsbecauseofitslowpriceandrelativelyeasyoperatingconditionsincomparisonwithothersweeteningprocesses.Inthispaperthecoldstrippingprocessintraycolumnhasbeenmodeledmathematicallyinstaticanddynamicmodes,andsolvedwiththeMATLABsoftware.Thisprocesshasbeenusedintheexistingtreatmentfacilitiesofanoffshoreoilproductioncomplexforverifyingthemodelresults.WiththehelpofHYSYSsoftwaretheeffectiveparametersontheprocesshavebeendiscussedandtheoptimizedconditionsfinalizedaftersomeplantmodificationsforimprovingtheperformanceofstrippercolumnshavebeenproposed.

简介：在这篇论文，为设计优化的一个方法elasto塑料捆绑结构基于参量的变化原则(PVP)被建议。优化试图在许可的节点排水量的限制下面发现最小的重量/卷答案。Thedesign优化是有平衡限制(MPEC)的数学编程的明确的表达。在优化克服互补限制的数字困难，重复进程，包括二次的编程(QP)和更新的进程，被采用著名计算机生产厂商他优化方法。而且，elasto塑料的弄弯捆绑成员在设计优化被看作限制。combinational优化策略为排水量限制和弄弯的限制被建议，它包括上面提及的方法和一个最佳的标准。三个数字例子被举证明方法的有效性求婚了。

简介：这篇论文在计划的一个材料要求(MRP)处理计划的铅时间计算的问题在随机的铅时间下面的环境。目的是最小化成立和backlogging费用的和。建议途径基于库存控制决定变量在哪儿是整数的分离时间。系统的二种类型被考虑：连续生产的多水平和汇编系统。为连续生产系统(在每水平的部件的一种类型)，一个数学模型被建议。然后，这个模型等价于众所周知的分离报童模型，这被证明。这直接在计划的铅时间提供最佳的价值。为多铺平汇编系统，一个奉献模型被建议，变量和目的工作的决定的一些性质被证明。这些性质被用来在客观功能上在决定变量和更低、上面的界限上计算更低、上面的限制。获得的限制和界限打开可能性开发例如，使用一个分支和界限途径的一个有效优化算法。纸与相应证明和几个数字例子详细论述建议模型。建议模型的一些优点和这研究的观点被讨论。

简介：Acrucialsystemfortheoperationofhigh-speedtrainsisthepantographcatenaryinterfaceasitisthesoleresponsibletodeliverelectricalpowertothetrain.Beingthecatenaryastationarysystemwithalonglifespanitisalsolesslikelytoberedesignedandupgradedthanthepantographsthatfitthetrainvehicles.Thisletterproposesanoptimizationprocedurefortheimprovementofthecontactqualitybetweenthepantographandthecatenarysolelybasedontheredesignofthepantographheadsuspensioncharacteristics.Apantographmodelisdefinedandvalidatedagainstexperimentaldynamiccharacteristicsofexistingpantographs.Anoptimizationstrategybasedontheuseofaglobaloptimizationmethod,tofindthevicinityoftheoptimalsolution,followedbytheuseofadeterministicoptimizationalgorithm,tofinetunetheoptimalsolution,isappliedhere.Thespringstiffness,dampingcharacteristicsandbowmassarethedesignvariablesusedforthepantographoptimization.Theobjectiveoftheoptimalproblemistheminimizationofthestandarddeviationofthecontactforcehistory,whichisthemostimportantquantitytodefinethecontactquality.Thepantographheadsuspensioncharacteristicsareallowedtovarywithintechnologicalrealisticlimits.Itisfoundthatcurrenthigh-speedrailwaypantographshavealimitedpotentialformechanicalimprovements,notexceeding10%-15%onthedecreaseofthestandarddeviationofthecontactforce.

简介：Somepropertiesofconvexconesareobtainedandareusedtoderiveseveralequivalentconditionsaswellasanotherimportantpropertyfornearlycone-subconvexlikeset-valuedfunctions.Undertheassumptionsofnearlycone-subconvexlikeness,aLagrangianmultipliertheoremonBensonproperefficiencyispresented.Relatedresultsaregeneralized.

简介：现在的纸为与快速的3D片和格子生成器(RAPID3DGRID)相结合的turbomachinery的空气动力学的设计描述优化方法论，一个N.S解答者，一个片parameterization方法(BPM)，一个基于坡度的analyseparameterization方法(GPAM)，有激增的一个反应表面方法(RSM)算法和一个简单坡度方法。由片parameterization方法的使用，一个接近音速的压缩机转子能被一套多项式表示，然后它使我们能转变表示坐标的片数据到表示参数然后减少参数的数字。与改变任何一个参数，我们能获得几组样品。这里，仅仅十个参数被认为寻找一个优化压缩机转子。由于优化，断热的效率被1.73%增加。

简介：Theoptimizationdesignofthepowersystemisessentialforstratosphericairshipswithparadoxicalrequirementsofhighreliabilityandlowweight.Themethodologyoforthogonalexperimentispresentedtodealwiththeproblemoftheoptimizationdesignoftheairship’spowersystem.Mathematicalmodelsofthesolararray,regenerativefuelcell,andpowermanagementsubsystem(PMS)arepresented.Thebasictheoryofthemethodoforthogonalexperimentisdiscussed,andtheselectionoffactorsandlevelsoftheexperimentandthechoiceoftheevaluationfunctionarealsorevealed.TheproposedmethodologyisvalidatedintheoptimizationdesignofthepowersystemoftheZhiYuan-2stratosphericairship.Resultsshowthattheoptimalconfigurationiseasilyobtainedthroughthismethodology.Furthermore,theoptimalconfigurationandthreesub-optimalconfigurationsareintheParetofrontierofthedesignspace.Sensitivityanalysesfortheweightandreliabilityoftheairship’spowersystemarepresented.

简介：新奇适应力量控制和形成横梁的联合优化算法在认知无线电(CR)被建议放在联网，在的地方有系列被准许的主要网络的认知网络份额光谱。在这份报纸，主要基础车站(PBS)和认知基础车站(CBS)都被装备与多天线，当每个主要用户(PU)和认知用户(CU)有仅仅一条天线时。与传统的算法不同，产生答案的一个适应重量因素在这份报纸，和用户的不同优先级被供应到不同存取用户(脓和CU)也被考虑，因为脓更高的优先级，脓的重量因素作为经常被修理，，signal-to-interference和噪音比率(SINR)阀值为CU是未改变的，它适应地被设置，SINR阀值也因此被改变。用这个算法，transmit电源被减少，它在通讯系统为电源放大器放松严格的要求。并且而且，由于脓修理了SINR阀值，在接收装置的计算SINR是将近未改变的，要不是CU，SINR随着适应重量因素正在变化。在脓的服务(QoS)的质量的保证下面，在这份报纸的解决方案能根据适应SINR阀值启用CR存取到CR网络，因此它供应更高的光谱利用效率。

简介：Withthecontinuousimprovementofthetrainspeed,thedynamicenvironmentoftrainsturnsouttobeaerodynamicdomination.Solvingtheaerodynamicproblemshasbecomeoneofthekeyfactorsofthehigh-speedtrainheaddesign.Giventhattheaerodynamicdragisasignificantfactorthatrestrainstrainspeedandenergyconservation,reducingtheaerodynamicdragisthusanimportantconsiderationofthehigh-speedtrainheaddesign.However,thereductionoftheaerodynamicdragmayincreaseotheraerodynamicforces(moments),possiblydeterioratingtheoperationalsafetyofthetrain.Themulti-objectiveoptimizationdesignmethodofthehigh-speedtrainheadwasproposedinthispaper,andtheaerodynamicdragandloadreductionfactorweresettobeoptimizationobjectives.Theautomaticmulti-objectiveoptimizationdesignofthehigh-speedtrainheadcanbeachievedbyintegratingaseriesofproceduresintothemulti-objectiveoptimizationalgorithm,suchastheestablishmentof3Dparametricmodel,theaerodynamicmeshgeneration,thecalculationoftheflowfieldaroundthetrain,andthevehiclesystemdynamics.Thecorrelationbetweentheoptimizationobjectivesandoptimizationvariableswasanalyzedtoobtainthemostimportantoptimizationvariables,andafurtheranalysisofthenonlinearrelationshipbetweenthekeyoptimizationvariablesandtheoptimizationobjectiveswasobtained.Afteroptimization,theaerodynamicdragofoptimizedtrainwasreducedbyupto4.15%,andtheloadreductionfactorwasreducedbyupto1.72%.

简介：ThedesignofnewSatelliteLaunchVehicle(SLV)isofinterest,especiallywhenacombinationofSolidandLiquidPropulsionisincluded.ProposedisaconceptualdesignandoptimizationtechniqueformultistageLowEarthOrbit(LEO)boundSLVcomprisingofsolidandliquidstageswiththeuseofGeneticAlgorithm(GA)asglobaloptimizer.ConvergenceofGAisimprovedbyintroducinginitialpopulationbasedontheDesignofExperiments(DOE)Technique.LatinHypercubeSampling(LHS)-DOEisusedforitsgoodspacefillingproperties.LHSisastratifiedrandomprocedurethatprovidesanefficientwayofsamplingvariablesfromtheirmultivariatedistributions.InSLVdesignminimumGrossLiftoffWeight(GLOW)conceptistraditionallybeingsought.SincethedevelopmentcoststendtovaryasafunctionofGLOW,thisminimumGLOWisconsideredasaminimumdevelopmentcostconcept.Thedesignapproachismeaningfultoinitialdesignsizingpurposeforitscomputationalefficiencygivesaquickinsightintothevehicleperformancepriortodetaileddesign.

简介：在认知无线电(CR)系统，察觉到的有效光谱保证第二等的用户(苏)成功地存取光谱洞。典型地，察觉问题从传播策略的优化独立被考虑了。在实践，由于失误察觉和虚惊的非零可能性，然而，察觉到的阶段影响产量象在主要用户(PU)的传播上一样怀疑。在这份报纸，用精力察觉，我们最大化全部的产量由联合在multibandCR系统优化察觉阀值和传播策略怀疑。一套重复基于算法被建议解决这个混合整数编程问题，它与IEEE802.22标准建议的一致察觉阀值选择算法相比显示出更好的性能。

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