一月份全国港口铁路运送集装箱吞吐量统计(暂部分)

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五月份全国沿海主要港口客货吞吐量统计

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三分之一船舶不受国际安全与防污染公约管辖

据一家政府间组织数据库发布的世界船队年度统计报告．目前，三艘船舶中就有一艘船舶因为其尺寸的原因不受国际安全与防污公约的管辖。报告称，2011年．不到500总吨的船舶数量占到了79074艘船舶总数的36％．但仅占全球船舶总吨位的1％。杂货船是这一比例中最为普遍的船型，总数占到了全球船队总数的21．5％。然而．大部分杂货船都是中小型船舶，吨位在500总吨以上，2．5万总吨以下。     

AIS系统在大型船舶锚泊半径及船间距的应用

航运业不断发展,港口的泊位资源越来越紧张,经常出现多只船舶同时锚泊的情况,船舶的安全停靠成为需要重点解决的问题。为了保障锚泊可靠性,需要计算自身船舶的水位空间占用大小及与相邻船舶的锚位距离,使船舶锚泊操控在锚泊时占用的空间误差最小。对此,本文利用自动识别系统(AIS)的动态及静态数据来描述船舶锚泊的水域空间半径及各大小不同船舶锚泊距离,通过计算机程序拟合单个船舶实际停泊的半径变化范围,最后进行仿真。     

十一月份长江干线主要港口货物吞吐量统计

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TYJL-ADX型联锁系统设计中的注意事项

介绍了TYJL-ADX计算机联锁系统的研发背景,对TYJL-ADX型计算机联锁系统在工程设计中的注意事项及要求进行了详细的介绍。     

九月份全国主要邮轮码头接待出入境旅客及船舶数量统计

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二月份全国主要邮轮码头接待出入境旅客及船舶数量统计

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A data model applied to the knowledge-based ICAS

Image-guided computer aided surgery system (ICAS) contributes to safeness and success of surgery operations by means of displaying anatomical structures and showing correlative information to surgeons in the process of operation. Based on analysis of requirements for ICAS, a new concept of clinical knowledge-based ICAS was proposed. Designing a reasonable data structure model is essential for realizing this new concept. The traditional data structure is limited in expressing and reusing the clinical knowledge such as locating an anatomical object, topological relations of anatomical objects and correlative clinical attributes. A data structure model called mixed adjacency lists by octree-path-chain (MALOC) was outlined, which can combine patient's images with clinical knowledge, as well as efficiently locate the instrument and search the objects' information. The efficiency of data structures was analyzed and experimental results were given in comparison to other traditional data structures. The result of the nasal surgery experiment proves that MALOC is a proper model for clinical knowledge-based ICAS that has advantages in not only locating the operative instrument precisely but also proving surgeons with real-time operation-correlative information. It is shown that the clinical knowledge-based ICAS with MALOC model has advantages in terms of safety and success of surgical operations, and help in accurately locating the operative instrument and providing operation-correlative knowledge and information to surgeons in the process of operations.     

九月份全国主要港口运行综述

2015年9月份,全国港口生产运行总体回稳,外贸货物、集装箱吞吐量增速呈小幅上扬。一、货物吞吐量小幅增长据9月份快报统计,全国规模以上港口完成货物吞吐量95509万t,同比增长1.6%。其中,沿海港口完成64264万t,增长0.6%;内河港口完成31245万t,增长3.9%。前三季度,规模以上港口完成货物吞吐量859930万t,同比增长2.8%,增速较去年同期放。