简介：6月初，伊朗国家航运公司（IRISL）宣布计划推出一条到日本的定期航线，在对伊朗实施制裁期间，公司仅有一条从南部港口城市阿巴斯港到东亚地区的航线。然而，现在有通往韩国，新加坡及中国的航线，并且这些航线都很活跃。

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简介：2007年3月16日，交通部海事局常务副局长刘功臣赴香港与香港特别行政区政府海事处处长谭百乐举行了海上安全定期会议。会议结束后双方签署了《香港特别行政区政府海事处与交通部海事局海上安全定期会议纪要》。

简介：Basedontheprincipleofimpedancemismatching,theperformanceofrigidvibrationisolationmassinimpedingvibrationwavepropagationwasdiscussedfromtheperspectiveofwaveapproach.BasedonFEM,theinfluenceofitsweightaswellasthecross-sectionshapeparametersontheisolationperformanceofrigidvibrationisolationmasswasstudiedthroughnumericalsimulation.Theresultsshowthatrigidvibrationisolationmasscaneffectivelyimpedethepropagationofthemediumandhighfrequencyvibrationwaves,andtheheavierthevibrationisolationmass,thebettertheisolationperformance.Forlowfrequencywaves,thevibrationisolationeffectisnotsoobvious;forarectangularvibrationisolationmass,theisolationperformancecouldbeeffectivelyimprovedbyincreasingthecross-sectionheightandreducingthecross-sectionwidth.Ausefulreferencewasprovidedfortheapplicationofrigidvibrationisolationmassestothevibrationisolationandnoisereductionofshipstructure.

简介：介绍了一种基于Spalding公式拟合的脊状表面减阻测试方法，相比于用天平等测力设备测试的方法，其优点在于简便实用，从应用实例来看，准确性也是令人满意的．由于该方法依靠的数据基础是壁面边界层内层速度分布，因此，速度分布测量的准确程度是影响该方法测试结果准确与否的决定因素．

简介：Inconsideringthetheoryofstructuraldynamicoptimizationdesign,adesignmethodofthestructuralstyleofshipcompositebracewithrigidvibrationisolationmasswasstudied.Twokindsofstructuraldynamicoptimizationformulationsminimizingthevibrationaccelerationofthenon-pressurehullontherestrainingconditionofthegrossweightoftheshipcabinwereestablished:1)dynamicoptimizationofthesectionaldimensionsoftherigidvibrationisolationmassinthecompositebrace;2)dynamicoptimizationofthearrangingpositionoftherigidvibrationisolationmass.Throughtheoptimizationresults,sectionaldimensionsandthearrangingpositionoftherigidvibrationisolationmasswithbetterperformanceinreducingvibrationweregained,andsomereferencewasprovidedforpracticalengineeringdesignsaswellasenrichmentofthedesignmethodofanovelshipvibration-isolationbrace.

简介：Rigidblockingmassesarelocatedinthetypicalbasestructureofapowercabinbasedontheimpedancemismatchprinciple.Bycombiningtheacoustic-structuralcouplingmethodandstatisticalenergyanalysis,thefull-bandvibrationandsoundradiationreductioneffectofvibrationisolationmasseslocatedinabasestructurewasresearched.Theinfluenceoftheblockingmass’cross-sectionsizeandshapeparametersandthelayoutlocationofthebaseisolationperformancewasdiscussed.Furthermore,theeffectivenessofrigidvibrationisolationdesignofthebasestructurewasvalidated.Theresultsshowthatthemediumandhighfrequencyvibrationandsoundradiationofapowercabinareeffectivelyreducedbyablockingmass.Concerningweightincrementandsectionrequirement,suitablyincreasingtheblockingmasssizeandsectionheightandreducingsectionwidthcanresultinanefficiency-costratio.

简介：4月,中国出口集装箱运输市场仍处恢复期,运输需求虽呈上升走势,但运力过剩情况仍较为严重,班轮公司在多条航线上的运价推涨未能取得预期效果,市场运价小幅震荡,总体下行。欧地航线运输需求总体呈恢复性增长态势,月初因运力过剩严重,涨价计划因市场接受度不高而最终取消,随着舱位利用率逐步回升,部分班轮公司在月末小幅提涨即期市场订舱运价。

简介：稳定规模重点发展加强管理提高质量──我校函授教育发展战略的一点思考高明桥（大连海事大学）恢复成人教育十余年来。我校成人教育以获得国家教委１９９２年全国成人教育先进单位为标志，开创了一条健康发展的道路。成人教育学院目前拥有函授生５０１人，分５个专业、本...