取消船舶签证带来监管模式调整的20问

船舶进出港签证是海事机构在水上安全监管中最主要的审批管理手段之一,文章从取消船舶签证带来监管模式的调整20个问题进行研究探讨并提出对策。     

安徽水运业人力资源管理现状与发展建议

从目前制约安徽由水运大省向水运强省迈进的主要因素——人才角度出发,分析人才需求和人才培养现状,指出存在问题,认为应加快建立水运人才梯队培养机制和体系。     

李克强:快递员工把幸福快递到千家万户

正1月27日,中共中央政治局常委、国务院总理李克强来到位于西安市肖里村的西安顺丰速运有限公司看望慰问快递员工。李克强说,快递业关系经济民生,你们既是在运送商品,也是在传递亲友心意,给大家送去春节的温暖,把幸福快递到千家万户。快递业是中国经济的"黑马",祝你们在马年快马加鞭、万马奔腾、马到成功!     

涉台海事调查现状及两岸海事调查合作机制

海峡两岸发生涉台海上事故后,由于政治因素影响及法律依据不同,无法及时进行充分、全面的调查,导致事故原因不清、责任不明,甚至影响两岸民众的和谐气氛。为防止类似事故的再次发生,促进海峡两岸海事调查合作,通过对两岸海事调查处理规定、涉台海事调查处理现状的分析,探讨利用国际公约的安全调查合作理念建立两岸海事调查合作机制的必要性和可能性。     

A Real-Time TCP Stream Reassembly Mechanism in High-Speed Network

With the continual growth of the variety and complexity of network crime means, the traditional packet feature matching cannot detect all kinds of intrusion behaviors completely. It is urgent to reassemble network stream to perform packet processing at a semantic level above the network layer. This paper presents an efficient TCP stream reassembly mechanism for real-time processing of high-speed network traffic. By analyzing the characteristics of network stream in high-speed network and TCP connection establishment process, several polices for designing the reassembly mechanism are built. Then, the reassembly implementation is elaborated in accordance with the policies. Finally, the reassembly mechanism is compared with the traditional reassembly mechanism by the network traffic captured in a typical gigabit gateway. Experiment results illustrate that the reassembly mechanism is efficient and can satisfy the real-time property requirement of traffic analysis system in high-speed network.     

Solving resource-constrained multiple project scheduling problem using timed colored Petri nets

To solve the resource-constrained multiple project scheduling problem (RCMPSP) more effectively, a method based on timed colored Petri net (TCPN) was proposed. In this methodology, firstly a novel mapping mechanism between traditional network diagram such as CPM (critical path method)/PERT (program evaluation and review technique) and TCPN was presented. Then a primary TCPN (PTCPN) for solving RCMPSP was modeled based on the proposed mapping mechanism. Meanwhile, the object PTCPN was used to simulate the multiple projects scheduling and to find the approximately optimal value of RCMPSP. Finally, the performance of the proposed approach for solving RCMPSP was validated by executing a mould manufacturing example.     

基于道路网络交通平衡的动态拥挤收费分析

拥挤收费作为一项有效的交通需求管理手段得到许多国家及城市的重视。目前,大多数拥挤收费采取静态管理分析手段,不能真实有效的解决实际交通问题,在此提出道路网络交通平衡概念,以道路网络交通平衡为目标,提出卖时监控、及时反馈、动态实施的拥挤道路收费机制。     

基于海事监管的引航员管理

随着《中华人民共和国船员条例》配套规定之一的《中华人民共和国引航员注册和任职资格管理办法》正式出台实施,以及全国引航管理体制改革全部完成,对加强现阶段引航员安全管理工作又是一个新的课题,笔者结合多年的工作经验,从海事部门的监督管理角度对引航员安全管理工作进行客观地分析,并对存在的问题和不足进行探讨,以期引航员安全管理工作更上一台阶.     

浦东公交体制改革后政府补贴机制框架思路探讨

2008年下半年,浦东启动了公交第三轮改革,建立了全国资的浦东公交有限公司。2009年2月13日,上海市委审议通过了《关于进一步深化本市公交改革方案》,标志着上海公交优先发展战略的全面实施。在这个社会大背景下,根据公交新体制的特性,有必要进一步研究政府对公交公益性补贴的机制。     

基于不同细集料T梁承载能力的评定

针对某桥梁建设中由于缺乏配制高性能混凝土的优质天然河砂,利用机制砂配制出C50混凝土,并用于预应力T梁。通过选用三片T梁进行常规试验和破坏。试验表明,机制砂混凝土T梁和天然河砂T梁两者物理力学性能基本一致,并确定了机制砂混凝土T梁的极限荷载。