简介：Underforcedventilation,thedustdiffusionofundergroundpowerhouseconstructionisinvestigatedusinga3DhighReynoldsnumberk-εmodel.Theinterfacialmomentumtransfersandthewallroughnessinthewallfunctionareconsidered.VentilationinthethirdlayerofundergroundpowerhouseofXiangjiabahydropowerstationisusedasacase.Thegeometricstructurehasadecisiveeffectontheairflowdistribution.Itisconcludedthatthedustconcentrationdecreasesgraduallywiththeincreaseoftheventilationtime.However,iso-concentrationcurveshavethesametendencyafter1800s.Thedustconcentrationmeetstheventilationanddust-preventionhealthstandardafter2300s.ThepredictionbythepresentmodelisconfirmedbytheexperimentalmeasurementbyNakayama.

简介：到还原剂隧道噪音，褪色，并且内部用户的干扰有效地在有多用户的混乱通讯系统，一个盲目隧道均等算法基于双unscentedKalman，过滤器算法被建议。假设多输入多产量(MIMO)的系数隧道能被一个autoregressive模型，描述二个分开的州空间的代表被用于信号和系数。然后，二个unscentedKalman过滤器被用来同时估计混乱信号和隧道系数。模拟结果显示算法罐头有效地追踪以快集中速度在混乱MIMO通讯系统使隧道褪色的多路径的系数。

简介：Basedonexperimentalresults,thispaperpresentsthatunderspecificvibrationalandsolidifyingconditions,thereareseveralperiodiclayersappearinginthecrystallizationofA1-3％Mgalloy.Themechanismoftheformationofperiodiclayerisdiscussed.Furthermore,theuseofthelayerstoidentifythesolid-liquidinterfaceandtheeffectofsuchlayersonmechanicalpropertiesofalloyhavebeenstudied.

简介：如何处理非精确条件下的数据检索在当前信息社会中已变得越来越为重要．本文介绍了一种基于多元组Ｒｏｕｇｈ集的有效信息检索方法．这种新方法是对普通Ｒｏｕｇｈ集模型的一种推广，它可通过多元组近似集来获取非精确查询结果

简介：三桶、四桶近海有转移力量的结构的一种新形式的风力量基础在这被建议纸，和foundation-soil-transition结构的综合有限元素模型被使用ABAQUS建立。建议基础的带的能力在垂直负担，水平负担和弯曲时刻下面被学习。多斗式的基础的垂直适用能力能被垂直适用能力粗略地估计，这能被看见单个桶；三桶的基础计划的水平适用能力被排水量控制，当四桶的基础计划的被土壤的内部力量控制时。而且，带的能力被形成由的全面结构提供在土壤前多斗式失败。与常规单个桶的基础相比，主要有紧张和压力，被用于多斗式的基础，以便基础的带的能力能充分被利用。土壤失败的概率能很好与建议多斗式的基础被减少，并且转移力量的结构的压力传播通过有可变剖面图的钢横梁是更一致的。

简介：Temporalmodedirectnumericalsimulationwasdonefortheprocessoflaminar-turbulenttransitioninanincompressibleboundarylayeronaflatplate.Theanalysisoftheresultsshowedthatduringthebreakdownprocessoflaminar-turbulenttransition,themodificationofthemeanflowprofilebythedisturbancesledtoaremarkablechangeinitsstabilitycharacteristics,manifestedinthesignificantenlargementofthelinearunstablezoneandthemaximumamplificationrate,andledtothatmanymoredisturbanceswereexcitedandenhancedrapidly,correspondinglytheturbulentenergyalsoincreasedrapidly,andthemeanflowprofilesevolvedswiftlyfromlaminartoturbulent.Itwasalsofoundthatiftheobliquewavesintheinitialdisturbancesdidnotformsymmetricalpairs,thesubsequentspan-wisemeanvelocitieswould,ingeneral,benonzeroduetononlinearinteraction,whichwouldhaveagreateffectonthestabilitycharacteristicsandalsoimpliedthattheturbulenceobtainedbydirectnumericalsimulationmightnotbefullyarandomprocess.

简介：这份报纸基于双层结构建议一条紧缩的极化微条天线。整个天线的带宽被分别地扩展顶和底部层拓宽。在天线结构和尺寸的调整的设计以后，建议天线能两个都在2.33GHz2.97GHz完成左边、右边的圆形的极化。测量结果显示有效带宽是在S乐队的640MHz，相对带宽能与S11完成24%不到15dB。

简介：Thispaperdiscussesthestabilityoftheoreticalsolutionsfornonlinearmulti-variabledelayperturbationproblems(MVDPP)oftheformx′(t)=f(x(t),x(t-τ1(t)),…,x(t-τm(t)),y(t),y(t-τ1(t)),…,y(t-τm(t))),andgy′(t)=g(x(t),x(t-τ1(t)),…,x(t-τm(t)),y(t),y(t-τ1(t)),…,y(t-τm(t))),where0<ε<<1.Asufficientconditionofstabilityforthesystemsisobtained.AdditionallyweprovethenumericalsolutionsoftheimplicitEulermethodarestableunderthiscondition.

简介：自从喷气和爆炸，气体的产品被锋利的接口分开，传统的弄平的粒子水动力学(SPH)方法是困难的在接口避免计算不稳定性。多相的SPH(MSPH)方法被用于改进稳定性，哪个smoothes粒子密度并且在接口使压力连续。形成过程的喷气的数字例子被用来测试MSPH方法的能力。结果证明方法为在喷气和气体的产品之间的大密度坡度仍然是算法稳定性并且有潜在的申请到爆炸和喷气问题。塑造的费用的开始方法的效果也被讨论。

简介：Dependentonautomaticallygeneratedunstructuredgrids,acomprehensivecomputationalfluiddynamics(CFD)numericalsimulationisperformedtoanalyzetheinfluenceofnozzlegeometryontheinternalflowcharacteristicsofamulti-holedieselinjectorwiththemulti-phaseflowmodelbasedonEulerianmulti-fluidmethod.Thedieselcomponentsinnozzleareconsideredastwocontinuousphases,dieselliquidanddieselvaporrespectively.Consideringthatbothofthemarefullycoupledandinterpenetrated,sepa...

简介：Amulti-objectiveoptimizationofnon-uniformbeamsispresentedforminimumradiatedsoundpowerandweight.Thetransfermatrixmethodisusedtocomputethestructuralandacousticresponsesofanon-uniformbeamaccuratelyandefficiently.Themulti-objectiveparticleswarmoptimizationtechniqueisappliedtosearchtheParetooptimalsolutionsthatrepresentvariouscompromisesbetweenweightandsoundradiation.Severalconstraintsareimposed,whichsubstantiallyreducethevolumefractionoffeasiblesolutionsinthedesignspace.Twononuniformbeamswithdifferentboundaryconditionsarestudiedtodemonstratethemulti-objectiveoptimaldesignsofthestructure.

简介：Anapproachispresentedtodealwithamulti-attributedecision-makingprobleminwhichtheattributeweightsareunknownandtheattributevaluestaketheformofuncertainlinguisticvariables.First,alinguisticassessmentstandardissetuptodealwiththeuncertainlinguisticattributes,andtheoperationlawsofuncertainlinguisticvariablesandtheuncertainlinguisticweightingaverage(ULWA)operatorareintroduced.Thenarankingformulaofuncertainlinguisticvariablesbasedonexpectation-var...

简介：Asanimportantelementinsustainablebuildingdesign,thebuildingenvelopehasbeenwitnessingaconstantshiftinthedesignapproach.Integratingmulti-objectiveoptimization(MOO)intothebuildingenvelopedesignprocessisverypromising,butnoteasytorealizeinanactualprojectduetoseveralfactors,includingthecomplexityofoptimizationmodelconstruction,lackofadynamic-visualizationcapacityinthesimulationtoolsandconsiderationofhowtomatchtheoptimizationwiththeactualdesignprocess.Toovercomethesedifficulties,thisstudyconstructedanintegratedbuildingenvelopedesignprocess(IBEDP)basedonparametricmodelling,whichwasimplementedusingGrasshopperplatformandinterfacestocontrolthesimulationsoftwareandoptimizationalgorithm.ArailwaystationwasselectedasacasestudyforapplyingtheproposedIBEDP,whichalsoutilizedagrid-basedvariabledesignapproachtoachieveflexibleoptimumfenestrations.Tofacilitatethestepwisedesignprocess,anovelstrategywasproposedwithatwo-stepoptimization,whichoptimizedvariouscategoriesofvariablesseparately.Comparedwithaone-stepoptimization,thoughtheproposedstrategyperformedpoorlyinthediversityofsolutions,thequantitativeassessmentofthequalitiesofPareto-optimumsolutionsetsillustratesthatitissuperior.

简介：Basedonthesteady-statesolutionoffinite-statebirthanddeathprocess,theprincipleoflineconfigurationforsharedmulti-channelsystemisanalyzed.Callcongestionratioequationandchannelutilizationratioequationarededuced,andvisualizeddataanalysisispresented.Theanaly-sisindicatesthat,calculatedwiththeproposedequations,theoverestimateforcallcongestionratioandchannelutilizationratiocanberectified,andtherebythecostofchannelscanbesavedby20%inasmallsystem.WithMATLABprogramming,lineconfigurationmethodsareprovided.Inordertogenerallyandintuitivelyshowthedynamicrunningofthesystem,andtoanalyze,promoteandimproveit,thesystemissimulatedusingM/M/n/n/mqueuingmodelandMonte-Carlomethod.Inaddition,thesimulationvalidatesthecorrectnessofthetheoreticalanalysisandoptimizingconfigurationmethod.

简介：基于自动电压，控制(AVC)和电池精力存储控制的改进自动电压协作控制策略(AVCCS)(BESC)被建议让光电的连接格子的系统(PVGS)减轻环境骚乱引起的电压变化。当小环境骚乱发生时，仅仅AVC被使用，当BESC与当大骚乱发生时，制止电压变化的AVC被合并时。决定电压变化的允许的振幅的一个可调节的参数被介绍认识到上述切换的进程。一个基准低电压分发系统包括PVGS被使用商业软件建立挖沉默。模拟结果证明在AVCCS下面的电压满足IEEE标准1547，并且安装电池电容是也减少了。同时，电池服务生活被在控制过程避免经常的控告/解除扩大。

简介：BiochaninA(BCA),themostabundantisoflavoneinchickpeas,presentsawiderangeofbiologicalactivities,suchashypolipidaemic,anti-oxidative,antiproliferative,andestrogen-likeeffects.WeinvestigatedtheinteractionbetweenBCAandhumanserumalbumin(HSA)viaseveraltechniques.UV–VisabsorptionspectroscopyverifiedtheconformationalvariationofHSAafterBCAaddition,andfluorescencespectroscopyrevealedtherelevantbindingparameters.CirculardichroismspectroscopywasusedtoestimatethesecondarystructuralchangesofHSAwithandwithoutBCA.MoleculardockinganddynamicssimulationswerethenappliedtostudythecharacteristicsofHSAwithBCA.EnergydecompositionanalysiswasusedtoprovethatTrp214insubdomainIIAofHSAisthemostlikelybindingsiteofBCA.VanderWaalsforcesandhydrophobicinteractionsmayplayimportantrolesduringthebindingprocess.AllofourresultsshowedthatBCApresentssignificantbindingaffinitytoHSA,thusconfirmingthattheroleofHSAhasasanefficienttransporterofbiomolecules.

简介：由于多来源的复杂性质地质的数据，通过一个单身者重建每地质的结构是困难的3D建模方法。在这分析提出的多来源数据解释方法基于地质的数据的分离、不规则的特征上的一个数据库驱动的模式和焦点。从盖住精确性，分辨率，数量和质量的一个范围的许多来源的地质的数据被分类并且根据他们为3D建模的可靠性和一致性综合。有不一致的合理B花键(NURBS)技术的地质的表面的新插值近似试穿构造算法然后被介绍。NURBS技术能为精确性，表面连续性和地质的结构的数据存储在要求之中保留平衡。最后，四其他的3D建模途径与一些例子的参考被表明，它根据数据数量和精确性说明被选择。建议途径为不同实际工程要求提供灵活当模特儿的模式。

简介：综合考虑了目前供应链合作全球化的新特点,研究了供应链订单分配合作协商过程的混合建模问题.在回顾国内外相关研究工作的基础上,分析了现有的供应链合作协商模型,指出了简化的MAS框架模型的局限性,且不适合于解决复杂系统的问题.随后以制造型供应链为例,采用Multi-Agent和复杂系统的研究思想,利用时间Petri网生产模型进行物料分解,综合Multi-Contract合作协商理论构造出基于Multi-Agent的供应链订单分配合作协商模型.仿真结果显示该模型有助于有效解决供应链中合作协商问题.