基于图像处理的桥墩防撞预警系统的研究

利用图像处理硬件设备，通过摄像头将视频信息采入，送入DSP进行分析处理；专门视频信息处理软件，运用各种图像处理技术，进行实时处理分析，对船舶进行实时监控。当船舶进入预警区，经计算机判断处理，提醒监控人员并通过广播对船舶驾驶人员发出警告，避免事故发生。 在图像序列处理技术的开发中，采用软硬件分离的方法，先进行基于Visual C＋＋的计算机软件设计研究；在软件中，研究了船舶检测、船舶跟踪与计算等内容。     

分散压缩型锚索在船闸工程中的运用

主要介绍京杭运河淮安市淮安三线船闸土锚施工和试验情况。在软弱土层和复杂土质情况下,利用分散压缩型锚索的结构特点,通过土锚试验、完善设计、改进施工工艺等综合措施,保证达到设计承载力,对以后土锚的应用与发展起很大的作用。     

新型码头钢-混凝土组合面板

基于特殊需要,提出了带型钢加劲肋的钢板-混凝土组合板这一新型组合码头面板。以加劲肋形式、组合板厚度和栓钉布置为参数,进行了9块组合板的力学性能试验。试验结果表明,通过适当地选择型钢加劲肋形式、合理地布置栓钉和确定混凝土厚度,可以保证组合作用的发挥。组合板的正截面承载力可按基于修正平截面假定的极限状态计算;组合板的变形,可在按现行钢结构设计规范计算的基础上,加上考虑界面滑移影响的附加变形值予以修正。计算值与试验值吻合较好。     

因地制宜,综合施治,务实解决街坊小区积水顽症

上海市杨浦区某些街坊小区一遇暴雨即产生严重的积水问题。通过调查研究，找出病症，提出改造方案．有效地解决了小区的积水顽症。本文结合实际，总结了若干综合技术措施和行政管理、协调手段。     

Distribution of suspended sediment in the coastal sea off the Ganges–Brahmaputra River mouth: observation from TM data

Remote sensing technique was applied to estimate suspended sediment concentration (SSC) and to understand transportation, distribution and deposition of suspended sediment in the estuary and throughout the coastal sea, off the Ganges–Brahmaputra River mouth. During low river discharge period, zone of turbidity maximum is inferred in the estuary near the shore. SSC map shows that maximum SSC reaches 1050 mg/l in this period. Magnitude of SSC is mainly owing to resuspension of the bottom surface sediments induced by tidal currents flowing over shallow water depths. The influence of depth on resuspension is farther revealed from the distribution and magnitude of SSC along the head of Swatch of No Ground (SNG) submarine canyon. During high river discharge period, huge river outflow pushed the salt wedge and flashes away the suspended sediments in the coastal sea off the river mouth. Zone of turbidity maximum is inferred in the coastal water approximately within 5–10 m depth of water, where the maximum SSC reaches 1700 mg/l. In this period, huge fluvial input of the suspended sediments including the resuspended bottom sediments and the particles remaining in suspension for longer period of time since their initial entry control mainly the magnitude of SSC. In the estuary near the shore, seasonal variation in the magnitude of SSC is not evident. In the coastal sea (>5 m water depth), seasonal influence in the magnitude of SSC could be concluded from the discrepancy between SSC values of two different seasons. Transportation and deposition of suspended sediments also experiences seasonal variations. At present, suspended sediments are being accumulated on the shallow shelf (between 5 and 10 m water depth) in low discharge period and on the mid-shelf (between 10 and 75 m water depth) during high discharge period. An empirical (exponential) relationship was found between gradual settle down of suspended sediments in the coastal sea and its lateral distance from the turbidity maximum.     

航行船舶在浅水水底引起的压力变化

航行船舶在水底引起的压力变化对其自身安全有重要影响。通过船池模型试验研究，总结出了航行船舶水底压力的分布规律，分析了负压峰值的影响因素，提出了水压场换算方法。在浅水、薄船条件下，忽略非线性影响，得到了船舶水压场的简化计算公式，计算结果较好地反映了试验结果的变化规律。     

一般状态下悬链线方程的应用

建立悬链线方程,分析悬链受力及方程的解法,结合实例运用悬链线方程计算锚链参数,完成工程船在具体海况下的锚泊设备选型。     

舰载作战系统新一代网络技术发展探讨

着重分析了目前舰载作战系统的网络结构，指出了所存在的不足，介绍了目前较流行和成熟的商用网络传输体制，分析了今后新一代作战系统网络技术的发展趋势，提出了利用合适的成熟商用网络传输体制进行二次开发，并在此基础上构建开放式RPR弹性分组环网络，给出了网络拓扑结构。     

基于层次灰色模型的铁路技术创新绩效综合评价

运用技术创新基本理论,结合铁路技术创新实际,从效益(经济、社会)增长、市场状态(市场份额、市场营销)改善和创新主体素质(技术装备水平、管理水平)提高3个方面建立了评价铁路技术创新绩效的多级指标体系。将层次分析法(AHP)和灰色系统理论结合起来建立了层次灰色评价模型(HGM),运用该模型对铁路技术创新绩效分别从整体和分项进行了综合评价,得出:铁路技术创新绩效绩优度为“一般”,其主要原因在于铁路运输市场状态改善中市场份额扩大程度较低。实证分析结果表明:改进层次灰色评价法(层次灰色评价模型)为一种评价铁路技术创新绩效的有效方法。     

波流联合作用下的船舶系泊

通过波流联合作用下开敞式深水码头系泊试验研究成果的分析,阐述了流对系泊船舶的作用性质,波流联合作用下系泊船舶动态特征,缆绳选择及系缆方式,并对试验方法的选取提出了建议。