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。     

Key technologies of ship remote control system in inland waterways under ship-shore cooperation conditions北大核心CSCD

［Objective ］ To meet the requirements of remotely controlling ship in curved, narrow and crowded inland waterways, this paper proposes an approach that consists of CNN-based algorithms and knowledge based models under ship-shore cooperation conditions. ［Method］On the basis of analyzing the characteristics of ship-shore cooperation, the proposed approach realizes autonomous perception of the environment with visual simulation at the core and navigation decision-making control based on deep reinforcement learning, and finally constructs an artificial intelligence system composed of image deep learning processing, navigation situation cognition, route steady-state control and other functions. Remote control and short-time autonomous navigation of operating ships are realized under inland waterway conditions, and remote control of container ships and ferries is carried out. ［Results］The proposed approach is capable of replacing manual work by remote orders or independent decision-making, as well as realizing independent obstacle avoidance, with a consistent deviation of less than 20 meters. ［Conclusions］The developed prototype system carries out the remote control operation demonstration of the above ship types in such waterways as the Changhu Canal Shenzhou line and the Yangtze River, proving that a complete set of algorithms with a CNN and reinforcement learning at the core can independently extract key navigation information, construct obstacle avoidance and control awareness, and lay the foundation for inland river intelligent navigation systems. © 2022 Journal of Clinical Hepatology. All rights reserved.     

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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地方高校学生学习行为与教学满意度

学生对教师开展的教学活动的满意度将影响学生的学习行为和学业成绩。通过对地方高校学生学习行为、对教师教学活动的满意程度和学业成绩的问卷调查，采用斯皮尔曼等级相关系数，分析地方高校学生学习行为与对教师教学活动满意度间的关系，发现影响地方高校学生学业成绩的相关因素，最后提出提高地方高校学生的学业成绩的对策。     

“别具一格”的集中学习

为深入开展党的群众路线教育实践活动，着力提高全体党员、干部学习的积极性和主动性，巩固和检验党员干部在群众路线教育实践活动第一环节的学习成果，集团党委于6月5日举行了党的群众路线教育实践活动知识竞赛。     

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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