构建铁路数据通信网骨干网的网络安全管理中心

针对当前铁路通信网络面临的安全问题,提出铁路数据通信网骨干网的网络安全管理中心的构建方案,通过被动、主动的防御手段,力争构建一个完整的、动态的网络安全管理中心,将铁路通信网络调整到最安全和风险最低的状态,持续地保证铁路通信各系统的网络安全。     

丰田＂召回事件＂对汽车零部件企业的警示

丰田“召回事件”向国内汽车零部件企业敲响了警钟。国内汽车零部件企业应当从丰田“召回事件”中吸取教训。要做大应先做强,打牢做大的基础;要正确处理好速度与质量的关系,任何时候都必须坚持“质量就是生命”的信念和追求;为消费者和社会提供优质的产品,既是企业应尽的义务,也是企业应该担负的社会责任,更是企业可持续发展,在市场竞争中“永葆青春”的法宝;在“走出去”的过程中,要加强“风险防范”,千万不能低估了跨国经营的法规制度的风险防范。     

LNG燃料动力船机舱设计研究

以本质安全型机舱、紧急防护型机舱为基础,提出了增强安全型机舱的设计思路,通过增强通风、加强探测与报警、采用全熔透对焊接头等措施降低机舱风险.以某内河LNG燃料动力船为目标,进行了增强安全型机舱的设计,给出了气体燃料管路上安装相应阀件、机舱和阀箱内设置气体探测和机械通风、供气管路的连接采用全熔透对焊接头、发动机进排气总管和曲轴箱上安装防爆安全阀、驱动风机的电动机安装在通风管道外、管道及电器设备接地等设计要求,达到了本质安全型机舱的风险水平.     

桥梁工程事故回顾分析与对策探讨

本文通过回顾从19世纪初以来世界上主要发生的桥梁事故情况,选取其中三个较为典型的桥梁事故,分析其倒塌的原因,并结合作者收集的信息,统计出桥梁事故发生的规律,从而对避免桥梁工程事故的发生提出一些建议和对策。     

哈尔滨局集团公司货运智能决策支持系统研究

为加强哈尔滨局集团公司各系统间货运数据资源整合,提升营销精准度,在众多物流企业中占据竞争优势,阐述哈尔滨局集团公司铁路货运营销管理现状,针对现有信息系统缺少对市场行情、经济形势的采集和分析等问题,结合商业智能相关技术,分析当前货运营销管理决策的特点及需求,提出构建哈尔滨局集团公司货运智能决策支持系统的目标及架构,设计智能人机交互、智能搜索引擎、市场营销管理、客户行为感知、市场行情监测、自定义报表查询等功能,为哈尔滨局集团公司货运营销管理提供了重要支持。     

Risk perception affecting the performance of shipping companies: the moderating effect of China and Korea

Risks in the shipping industry have been highlighted and have attracted significant attention, especially following the bankruptcy of Hanjin in 2017. Due to the decrease in container volume, the business environment for large shipping companies in China has deteriorated. Therefore, major large shipping companies have implemented mixed ownership reform, which provides more opportunities for large Korean shipping companies to enter the Chinese shipping industry. This study first identifies risk perception, specifically focusing on the moderating effect of Chinese and Korean shipping companies, and then demonstrates the impact of these risks on shipping company performance. The results show that market, operational, and technical risks have a negative influence on Chinese shipping companies, whereas market, policy, financial, operations, and technical risks have a negative influence on Korean shipping companies. This study contributes to the fundamental understanding of the effect of risk perception on performance among shipping companies in both countries and calls for further research on risk management plans based on the risk factors identified herein. On a practical level, this study provides an important reference for operators and investors who seek to enter strategic alliances or joint venture in Chinese shipping industry.     

A risk assessment model with systematical uncertainty treatment for container shipping operations

ABSTRACT

The substantial adverse effects of risk factors on container shipping and logistics promoted a deep integration of risk analysis into the decision-making process. This paper aims to develop a well-grounded quantitative model to operational risk in a container shipping context. Considering uncertainty as a primary component of the risk concept, methods were employed in an inter-complementary manner to enable not only a sense of foreseeability but also a deeper look into the weaknesses of the knowledge base. The intersubjectivity of the input extraction process was supported by the Evidential Reasoning (ER) algorithm. Risks are then assessed based on a Fuzzy Rules Bayesian Network (FRBN) model with a 2-level parameter structure before meaningful interpretations can be derived through a new risk mapping approach. Besides an illustrative case study, the model was tested by sensitivity analysis and an examination of multiple validity claims.     

Measuring risk aversion to guide transportation policy: Contexts,incentives, and respondents

Road pricing may provide a solution to increasing traffic congestion in metropolitan areas. Route, departure time and travel mode choices depend on risk attitudes as commuters perceive the options as having uncertain effects on travel times. We propose that Experimental Economics methods can deliver data that uses real consequences and where the context can be varied by the researcher. The approach relies on the controlled manipulation of contexts, similar to what is done in the Stated Choice approach, but builds in actual consequences, similar to the Revealed Preference approach. This paper investigates some of the trade-offs between the cost of conducting Experimental Economics studies and the behavioral responses elicited. In particular, we compare responses to traditional lottery choice tasks to the route choice tasks in simulated driving environments. We also compare students (a low cost convenient participant pool) to field participants recruited from the driving population. While we see initial differences across our treatment groups, we find that their risk taking behavior converge with minimal repetition.     

机车车辆故障与可靠性分析

论述了机车车辆故障的基本概念 ,包括故障的定义和国内外对机车车辆故障的规定以及故障严重程度的分类。介绍了故障模式、故障机理及故障分析方法 ,包括图示法、FMEA法及故障风险分析。     

追越条款的适用是否以存在碰撞危险为前提

追越条款的适用是否以两船存在碰撞危险为条件，历来存在不同的观点，笔者通过对案件和《规则》条文的分析，提出追越条款的适用不是以两船存在碰撞危险为前提，只要符合构成追越局面的条件，不论当时两船是否存在碰撞危险，追越条款就开始适用。