简介：Toensurethatlimitedresourcesareallocatedmoreeffectivelytoreducemarinerisks,formalsafetyassessment(FSA),aproactivemethod,isintroducedinplanningavesseltrafficsystem(VTS).BasedonthedataofWuhanport,somenewsolutionsbasedonrisk-indicesareputforward.Theweightednumberoftrafficaccidentsispredictedafterthefutureweightedvesseltrafficvolumeisestimatedbyanalyzingthetrendoftradedevelopment.Toanalyzeriskacceptability,theas-low-as-reasonably-practica...

简介：差距统计数值是聚类有效性的一个著名索引，但是它的实现是困难的被理解并且精确地决定了。一个直接方法被介绍改进差距统计数值的表演，它使用在内簇分散的二顺序的差别在差距统计数值代替构造空参考分发。因此，差距统计数值的实现变得容易并且在应用是reformulated，和它的不确定性被减少。另外，差距统计数值的限制被二个典型例子分析，也就是说，差距统计数值是困难的被用于包含强壮重叠或不平密度的簇的数据集。实验验证建议方法的实用性。

简介：一系列电子施主包括1,1-cyclopentanecarboxylic酸diethyl酉旨(CPCADEE)，1,1-cyclopentanedimethanol醋性的diester(CPDMAD)，1,1-biethoxymethyl戊烷(BEMP)，2,2-diethyldiethylmalonate(DEDEM)和2,2-diethyl-1,3-propanediol醋性的diester(DEPDADE)，被diethylmalonate(DEM)综合。上述产品的纯净和结构被煤气的层析(GC)和煤气的层析团分光计(GCMS)分别地描绘。而且，这些施主的可能的最佳的三维的结构借助于Gaussian03和Chem3D被模仿。然后，这些电子施主与tetrachloro钛(TiCl4)和氯化物镁(MgCl2)被协调为丙烯的聚合获得催化剂。当CPCADEE或DEPDADE被用作内部施主(标志)时，聚丙烯的催化活动和性质被增加外部施主(编辑)极大地改进。然而，当BEMP被用作标志时，没有增加编辑，最高催化的活动被获得，它能减少生产费用并且简化催化合成。实验显示BEMP有氧原子和最高的electronegativity的最短的距离。

简介：LikemanyriverbasinsinChina,waterresourcesintheFudongPaiRiverarealmostfullyallocated.Thispaperseekstoassessandevaluatewaterresourceproblemsusingwaterevaluationandplanning(WEAP)modelviaitsapplicationtoHengshuiBasinofFudongPaiRiver.Thismodelallowsthesimulationandanalysisofvariouswaterallocationscenariosand,aboveall,scenariosofusers'behavior.Waterdemandmanagementisoneoftheoptionsdiscussedindetail.Simulationsareproposedfordiverseclimaticsituationsfromdryyearstonormalyearsandresultsarediscussed.Withinthelimitsofdataavailability,itappearsthatmostwaterusersarenotabletomeetalltheirrequirementsfromtheriver,andthateventheecologicalreservewillnotbefullymetduringcertainyears.Buttheadoptionofwaterdemandmanagementproceduresoffersopportunitiesforremedyingthissituationduringnormalhydrologicalyears.However,itappearsthatdemandmanagementalonewillnotsufficeduringdryyears.Nevertheless,theeaseofuseofthemodelanditsuser-friendlyinterfacesmakeitparticularlyusefulfordiscussionsanddialogueonwaterresourcesmanagementamongstakeholders.

简介：Two-dimensionalirregularpolygonspackingproblemisverydifficulttobesolvedintraditionaloptimalway.Simulatedannealing(SA)algorithmisastochasticoptimizationtechniquethatcanbeusedtosolvepackingproblems.ThewholeprocessofSAisintroducedfirstlyinthispaper.AnextendedneighborhoodsearchingmethodinSAismainlyanalyzed.AgeneralmoduleofSAalgorithmisgivenandusedtolayouttheirregularpolygons.Thejudgmentofintersectionandotherconstrainsofirregularpolygonsareanalyzed.ThenanexamplethatwasusedinthepaperofStefanJakobsislisted.ResultsshowthatthisSAalgorithmshortensthecomputationtimeandimprovesthesolution.

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

简介：欧洲结构的正直评价过程(SINTAP)在焊接脚趾与一个假定嵌入的缺陷和表面缺陷被用于对API5LX65管道钢的焊接关节的评价。在缺省水平(水平())，评价点被从Charpy精力测试数据保存地估计破裂坚韧价值K_lc建立。同时，分析水平(基本水平)1基于破裂坚韧CTOD被使用。然后，二个评价层次被比较。所有评价点位于分析的失败线以内的评价结果表演铺平0并且t。管道的焊接关节因此是安全的。评价基于Charpy吸收了精力，这能被结束当另外的破裂坚韧数据不是可得到的时，是适用的，或不能容易被获得。结果是保守的。

简介：Basedontheoperationdatafromacertainwastewatertreatmentplant(WWTP)innortheastChina,themodelsofbackpropagationneuralnetwork(BPNN)andradialbasisfunctionneuralnetwork(RBFNN)havebeendesignedrespectivelyandtheabilityofconvergenceandgeneralizationhasbeenanalyzedseparately.AsforBPNN,theeffectsofnumbersoflayersandnodeshavebeenstudied;asforRBFNN,theinfluencesofthenumberofnodesandtheRBF′swidthhavebeenstudied.ItisconcludedthatBPNNhasconvergedmuchslowlyincomparisonwithRBFNN.TheconclusionthattheRBFNNissuitableformodelingactivatedsludgesystemhasbeendrawn.AnautomaticallyoptimumdesignprogramforRBFNNhasbeendeveloped,throughwhichtheRBFNNmodeloftraditionalactivatedsludgesystemhasbeenestablished.

简介：在计划的传统的力量传播网络，确定的分析方法广泛地被使用。在如此的方法，所有意外事故被认为有一样的出现概率，它不是合理的。在这份报纸，风险评价被介绍给传播网络就意外事故的概率的特征而言计划的进程。风险索引被给基于本地信息决定传播网络的弱点，例如公共汽车风险，线超载风险，意外事故严厉。这些索引被最佳的费用控制方法基于风险理论计算，它能帮助规划者快速在计划决定弱点并且发现解决方案到他们。为简化，仅仅衬里违背被考虑的超载。最后，建议方法被一个IEEE-RTS测试系统和一个真实力量系统从二个方面在中国验证。在第一个盒子中，原来的系统被建议方法评估发现弱点，然后四个计划计划在最好的计划在哪个之中被选择之中被建立。在第二个盒子中，四个起始的计划计划被联合规划者的经验建立，并且在由使用建议方法的评估以后，最好计划的计划在起始的计划基于弱点的信息被改进，吗并且改进计划的风险从42531.86MWnd被减少陶艺上的另外的参数是一？

简介：Avisualobject-orientedsoftwareforlanefollowingonintelligenthighwaysystem(IHS)isproposed.Accordingtoobject-orientedtheory,3typicaluserservicesofself-check,transferofhumandrivingandautomaticrunningandabnormalinformationinputfromthesensorsarechosenout.Inaddition,thefunctionsofreal-timedisplay,informationexchanginginterface,determinationandoperationinterweavinginthe3userservicesareseparatedinto5object-orientedclasses.Moreover,the5classesareorganizedinthevisualdevelopmentenvironment.Atlast,experimentalresultprovesthevalidityandreliabilityofthecontrolapplication.

简介：A0.18lmCMOSlownoiseamplifier(LNA)byutilizingnoise-cancelingtechniquewasdesignedandimplementedinthispaper.Current-reuseandself-biastechniqueswereusedinthefirststagetoachieveinputmatchingandreducepowerconsumption.ThecoresizeoftheproposedCMOSLNAcircuitwithoutinductorwasonly128lm9226lm.ThemeasuredpowergainandnoisefigureoftheproposedLNAwere20.6and1.9dB,respectively.The3-dBbandwidthcoversfrequencyfrom0.1to1.2GHz.Whenthechipwasoperatedatasupplyvoltageof1.8V,itconsumed25.69mW.ThehighperformanceoftheproposedLNAmakesitsuitableformultistandardlow-costreceiverfront-endswithintheabovefrequencyrange.

简介：存在的油进口依赖指数不能确切测量经济费用或规模，并且描述油安全的节俭的方面是困难的。测量一国家经济的外国依赖并且反映它的油经济安全，这份报纸把网油进口紧张定义为进口花费了到GDP的网油的比率。由使用Divisia索引分解，在五个工业化国家和五个最新工业化的国家的网油进口紧张的变化在19712010期间被分解成五个因素：给价格，油紧张，油自足，国内价格水平和汇率上油。结果证明统治因素是油价格和油紧张；而且，最新工业化的国家让更高的网油比工业化国家进口紧张。

简介：Bycombiningtheadvantagesoftheadditiveweightedmean(AWM)operatorandtheorderedweightedaveraging(OWA)operator,thispaperfirstpresentsahybridoperatorforaggregatingdatainformation,andthenproposesahybridaggregation(HA)operator-basedmethodformultipleattributedecisionmaking(MADM)problems.ThetheoreticalanalysesandthenumericalresultsshowthattheHAoperatorgeneralizesboththeAWMandOWAoperators,andreflectstheimportanceofboththegivenargumentandtheorderedpositionoftheargument.Thus,theHAoperatorcanreflectbetterrealsituationsinpracticalapplications.Finally,anillustrativeexampleisgiven.

简介：AnewsupportedamorphouscatalystCoP/TiO2waspreparedbychemicalreductionandcharacterizedbyICP,XRD,TEM,BETandDSC.ItsapplicationindecomposingPH3tohighpurityphosphoranditscatalyticactivitywerestudied.Thedecompositionrateisover95%at450℃.Forcomparison,unsupportedCoPamorphouscatalystwaspreparedbythesamemethod.TheresultsuggeststhatCoP/TiO2exhibitshigherthermalstabilityandcatalyticactivitythanCoP,whichisattributedtothehighdispersionofCoPalloyparticlesonthesupport-TiO2.

简介：

简介：Asecond-ordermixingdifferenceschemewithalimitingfactorisdeducedwiththereconstructiongradientmethodandappliedtodiscretizingtheNavier-Stokesequationinanunstructuredgrid.Thetransformofnonorthogonaldiffusionitemsgeneratedbytheschemeindiscreteequationsisprovided.TheDelaunaytriangulationmethodisimprovedtogeneratetheunstructuredgrid.ThecomputingprogrambasedontheSIMPLEalgorithminanunstructuredgridiscompiledandusedtosolvethediscreteequationsoftwotypesofincompressibleviscousflow.Thenumericalsimulationresultsofthelaminarflowdrivenbylidincavityandflowbehindacylinderarecomparedwiththetheoreticalsolutionandexperimentaldatarespectively.Intheformercase,agoodagreementisachievedinthemainvelocityanddragcoefficientcurve.Inthelattercase,thenumericalstructureanddevelopmentofvortexunderseveralReynoldsnumbersmatchwellwiththatoftheexperiment.Itisindicatedthatthefactordifferenceschemeisofhigheraccuracy,andfeasibletobeappliedtoNavier-Stokesequation.

简介：Toimproveglobalcontrolofdiseaseandreduceglobaltoxicity,acomplexseeddistributionpatternshouldbeachievedwithgreataccuracyduringbrachytherapy.However,theinteractionbetweentheneedleandprostatewillcauselargedeformationofsofttissue.Asaresult,seedswillbemisplaced,sharpdemarcationbetweenirradiatedvolumeandhealthystructuresisunavailableandthiswillcausesideeffectssuchasimpotenceandurinaryincontinence.Inthispaper,a3Dnonlineardynamicfiniteelements...

简介：基于的一个格子和Green-Ampt(Grid-GA)散布了hydrologic物理模型为洪水模拟被开发并且在半潮湿、半干旱的盆预报。基于从数字举起模型(DEM)和Green-Ampt渗入方法提取的每个格子房间的地形学的信息，Grid-GA模型考虑水内容的再分配，并且由植被和根拦截组成，土壤水分蒸发蒸腾损失总量，经由过量渗入机制的流量产生，流量集中，并且流动路由。土壤潮湿的下坡的再分配明确地在一个格子基础上被计算，并且沿着网络被考虑的河排水在流量路由以内在格子之中浇交换。建议模型和Xinanjiang模型在Luohe河里被用于上面的Lushi盆，黄河的一条支流，与为洪水模拟的4716km2的一个区域。结果证明两个模型在洪水模拟表演很好并且能被用于洪水在半潮湿、半干旱的区域预报。

简介：ToovercomethedeficienciesoftheexistingVerhulstGM(1,1)model,basedontheexistinggreytheory,anon-equal-intervaldirectoptimumVerhulstGM(1,1)modelisbuiltwhichchoosesamodifiedn-thcomponentx(n)ofX(0)asthestartingconditionofthegreydifferentialmodel.Itoptimizesamodifiedβvalueandthebackgroundvalue,andtakestwotimesfittingoptimization.Thenewmodelextendsequalintervalstonon-equal-intervalsandissuitableforgeneraldatamodellingandestimatingparameters...