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41.
渔港是沿海渔区渔船生产、航行,停泊安全的重要基础保障.为加强渔港安全管理、促进渔业经济发展和新农村建设,在研究渔港功能、渔港安全监控和信息管理系统现状的基础上,对船舶动态监控、船岸通信、综合信息管理3个子系统的设计原理和实现途径,对数据接受和处理,船舶动态数据库,目标船化标绘系统,基于AIS(Automatic Identification System)数据的智能船舶动态视频监控4个核心技术问题逐一进行了论述.系统的设计和研发达到了国家中心渔港的建设要求,并满足了渔港安全管理的需要. 相似文献
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介绍了一种适应于内河极浅水域疏浚的多功能作业的特种疏浚工程船及其船型设计特点。该船设计过程中克服了常规船不曾有过的种种难题,且在重量及浮态控制方面较常规设计经验有所突破,有较好参考价值。 相似文献
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Effective waterway management requires information on the characteristics and locations of boats. A field-based boat census—a traditional method to obtain spatially accurate information—is relatively expensive, time-consuming, and restrictive in scope. Vessel registration data, maintained by all U.S. states, is potentially a more robust information source. This research evaluated the accuracy and reliability of vessel registration data to supply location and attribute information for boats. The study premise was to use vessel registration data, which includes the mailing address of registered boat owners, to develop a spatially enabled inventory of boats. The study area comprised 12,064 salt-water accessible property parcels in two Florida counties. An on-water census (OWC) provided location and characteristics for 5,023 vessels, which were compared to 8,681 vessel registration records linked to the study area. Discrepancies between the OWC and vessel registration data were explained by a stratified, random sample of 485 telephone survey respondents. Study results show that vessel registration data accurately located and characterized roughly 81% of the boat population; in contrast, the OWC accurately located less than 56%. A conclusion is that state vessel registration data is a better alternative than an OWC for locating and characterizing boats kept along waterways. 相似文献
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厦漳大桥北汊主桥通航孔的通航能力与其上游及桥区附近的码头建设规模密切相关.以调研数据为基础,分析北汊主桥通航孔的特点及碍航性,提出通航净空高度是制约其通航能力的主要因素,通过实船数据的统计分析,论证北汊主桥通航孔的通航能力.其结论对该桥区通航安全管理及桥区上游和附近码头建设规模的确定具有参考价值. 相似文献
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The paper examines the potential effects of failure of heavily used, outdated locks and dams on the Monongahela River in southwestern Pennsylvania. Catastrophic failure would result in lengthy outage of barge traffic. The displaced volume of coal shipments from mines to power plants is estimated using Energy Information Administration survey data. The resilience of the impacted facilities, the viability of their shipping alternatives, and their ability to re-organize into new markets is assessed. Lost revenues are estimated for facilities that close due to an inability to adapt, as well as the replacement cost of towboats and barges trapped by a catastrophic and sudden failure. The aggregate costs to these facilities as a result of a year-long closure are estimated at $0.56-1.7 billion. 相似文献
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人的失误模型在船舶溢油事故应急中的应用分析 总被引:1,自引:0,他引:1
船舶交通事故问题的预测一直是业内研究人员十分重视的研究课题。分别采用回归预测法、时间序列预测法、灰色理论预测法和贝叶斯统计预测法等不同方法,结合国内某港引航站近十多年来船舶引航总量和事故的实际情况,进行了比较分析和对未来情况予以预测。着重就贝叶斯方法在港口船舶引航风险预测中的运用进行了探讨。结论证明贝叶斯估计方法得到的结果具有良好的预测效果。 相似文献