简介：Inthepresentwork,computationalsimulationswasmadeusingANSYSCFXtopredicttheimprovementsinfilmcoolingperformancewithdualtrench.Dual-trenchconfigurationconsistsoftwotrenchestogether,onewidertrenchandtheotherisnarrowtrenchthatextrudedfromthewiderone.Severalblowingratiosintherange(0.5:5)wereinvestigated.Thepitch-to-diameterratioof2.775isused.Byusingthedualtrenchconfiguration,thecoolantjetimpactedthetrenchwalltwotimesallowingincreasingthespreadingofcoolantlaterallyinthetrench,reducingjetvelocityandjetcompletelycoveredonthesurface.Theresultsindicatethatthisconfigurationincreasedadiabaticeffectivenessasblowingratioincreased.Thespatiallyaveragedadiabaticeffectivenessreached57.6%foratM=2.Noobservedfilmblow-offatallblowingratios.Theadiabaticfilmeffectivenessofdualtrenchcaseoutperformedthenarrowtrenchcase,laidbackfan-shapedhole,fan-shapedholeandcylinderholeatdifferentblowingratios.

简介：在马克思主义政治经济学的理论背景下，以中国特色社会主义理论的创新发展为目标追求，以坚持中国特色的社会主义发展道路为根本立足点，提出并通过对“中国特色的配置性方式”的内涵、有效性及决定因素的探讨，进一步增强并升华中国特色社会主义道路的理论自信．

简介：短途沿海运输是发达国家普遍使用的一种交通运输模式,其具有空气污染小、单位运费较低、运量大的特点,是能够实现低碳运输的重要方式之一。若能够将陆上运输的货物通过短途沿海运输转移至海上,可大幅度缓解陆上的交通压力,减轻空气污染。

简介：本文根据ＳＴＣＷ７８／９５公约对船舶高级消防专业培训的要求和目前我国船舶高级消防专业培训的现状，提出了船舶高级消防专业培训的教学改革方案，并就引入船舶高级消防专业培训模拟训练装置的可行性进行了探讨

简介：WedevelopedadetailedsimulationmodeloftheArcticmarinetransportsystem(MTS)foroilplatformPrirazlomnaya.Themodelhasamultidisciplinarynatureandinvolves:sub-modelsofvarioustransportandtechnologicalprocesses;stochasticweathergeneratortoobtaintimeseriesof15environmentalparameters;andcontextualplanningalgorithmtobuildvoyageplanconsideringseveraltypesofshipsandcargoes.Weusedasignificantamountofrealoperationaldatatoidentifymodelparametersandtoproveitsstatisticalreliability.Ourmainscientifictaskistoinvestigatetheinteractionofvariousprocessesofadifferentnature,whilethepracticalaimistofindasetofmeasurestoincreasetheefficiencyofMTS.Theresultsofthestudyrevealmanyexamplesofthemutualinteractionofvariousprocessesthatneedtobeconsideredatthedesignstagetoavoidtechnicalmistakes.ThestudyformedabasisformakingmanagerialdecisionsatthetoplevelofGazpromNeftShelfCompany.

简介：文章探讨了船舶检验专业学生进行分段精度测量模拟训练的学习曲线，确定了船检专业学生分段测量训练次数和频率，优化了船检专业学生的分段精度控制模拟训练实训安排，具有一定的应用价值。

简介：文章分析了当前港口机械控制系统外围传感器信号采集和监控工作原理,指出其效率代码低和运算精度不高的原因,并提出不同于当前控制系统信号采集系统工作原理的新的采集信号和监控思路,同时给出了其主要硬件电路设计过程。

简介：Themainchallengeforcontainerportsistheplanningrequiredforberthingcontainershipswhiledockedinport.Growthofcontainerizationiscreatingproblemsforportsandcontainerterminalsastheyreachtheircapacitylimitsofvariousresourceswhichincreasinglyleadstotrafficandportcongestion.Goodplanningandmanagementofcontainerterminaloperationsreduceswaitingtimeforlinerships.Reducingthewaitingtimeimprovestheterminal’sproductivityanddecreasestheportdifficulties.Twoimportantkeystoreducingwaitingtimewithberthallocationaredeterminingsuitableaccesschanneldepthsandincreasingthenumberofberthswhichinthispaperarestudiedandanalyzedaspracticalsolutions.Simulationbasedanalysisistheonlywaytounderstandhowvariousresourcesinteractwitheachotherandhowtheyareaffectedintheberthingtimeofships.WeusedtheEnterpriseDynamicssoftwaretoproducesimulationmodelsduetothecomplexityandnatureoftheproblems.WefurtherpresentcasestudyforberthallocationsimulationofthebiggestcontainerterminalinIranandtheoptimumaccesschanneldepthandthenumberofberthsareobtainedfromsimulationresults.Theresultsshowasignificantreductioninthewaitingtimeforcontainershipsandcanbeusefulformajorfunctionsinoperationsanddevelopmentofcontainershipterminals.

简介：为能更好解决码头建设后对现有VTS雷达站可能被遮挡的影响分析和在通航安全论证中又无法对其进行较好的论证和合理的预见,并提供有效的解决方案.为此,提出了利用航海模拟器构建相应三维实景数据库和雷达反射库,建立可移动的虚拟VTS雷达站的解决方案,实验证明其方案既能保证通过合理的预见其可能产生的后果,又能提出VTS雷达站优化的解决方案.

简介：Thispaperpresentsanimprovedunstructuredgridimmersedboundarymethod.Theadvantagesofbothimmersedboundarymethodandbodyfittedgridswhicharegeneratedbyunstructuredgridtechnologyareusedtoenhancethecomputationefficiencyoffluidstructureinteractionincomplexdomain.TheNavier-StokesequationwasdiscretizedspaciallywithcollocatedfinitevolumemethodandEulerimplicitmethodintimedomain.TherigidbodymotionwassimulatedbyimmersedboundarymethodinwhichthefluidandrigidbodyinterfaceinteractionwasdealtwithVOS(volumeofsolid)method.AnewVOScalculationmethodbasedongraphwaspresentedinwhichbothimmersedboundarypointsandcrosspointswerecollectedinarbitraryordertoformagraph.Themethodisverifiedwithflowpastoscillatingcylinder.

简介：文章从企业文化进校园的巨大作用出发,探究了企业文化进校园的具体实现形式,对推动职业院校的校园文化建设具有一定的指导意义。

简介：Smoothedparticlehydrodynamics(SPH)isaLagrangianmeshlessparticlemethod.Itisoneofthebestmethodforsimulatingviolentfreesurfaceflowsinfluidsandsolvinglargefluiddeformations.Dambreakingisatypicalexampleoftheseproblems.ThebasisofSPHwasreviewed,includingsometechniquesforgoverningequationresolution,suchasthesteppingmethodandtheboundaryhandlingmethod.Thennumericalresultsofadambreakingsimulationwerediscussed,andthebenefitsofconceptslikeartificialviscosityandpositioncorrectionwereanalyzedindetail.Whencomparedwithdambreakingsimulatedbythevolumeoffluid(VOF)method,thewaveprofilegeneratedbySPHhadgoodagreement,butthepressurehadonlyreasonableagreement.Improvingpressureresultsisclearlyanimportantnextstepforresearch.

简介：最高人民法院最新颁布的《关于扣押与拍卖船舶适用法律若干问题的规定》规定船舶活扣押将不再受海诉法调整而改为适用民事诉讼法有关规定。活扣押在适用条件、管辖法院、担保方式等方面都将面临新的转变。但这种转变并不成熟，以一般法调整具有特殊性的船舶扣押问题是否适宜值得商讨。最好的办法应是像对待死扣押一般制定专门的条款明确其操作程序，促进船舶保全措施的多样化发展。

简介：采用计算流体力学的方法计算了水下潜器主体在正弦和线性两种转艏方式下导管螺旋桨水动力性能,计算结果表明：当水下潜器主体从不同的方向摆动至同一位置时,导管螺旋桨进速、轴向速度和轴向诱导速度都不一样,逆时针方向转艏时大于顺时针方向;水下潜器按正弦转艏时,导管螺旋桨盘后轴向速度以及轴向诱导速度均大于按线性转艏的情况;潜器主体正弦摆动时,导管螺旋桨的推力大于线性摆动时,且均小于固定情况.

简介：“以最快捷的方式获取最准确的信息情报，以最科学的决策制定最完善的施救方案，以最有效的手段配备最精干的搜救力量，以最满意的社会效果回馈最关切的社会期待。”这是交通部副部长徐祖远对中国海上搜救中心提出的工作方法和目标，同时也是广大涉海人民群众对交通部海上搜救工作的切实需要。