香港回归与上海经济和航运业的发展

随着１９９７年香港的回归和９０年代上海经济持续稳定的发展，中国未来半出现丙个国际中心城市－香港和上海。如何认识这两个国际中心城市之间的关系对中国经济的发展是至关重要的。本文从经济和航运两方面对这一问题进行了深入的分析。     

加快上海枢纽港建设,促进城市经济的发展

本文从枢纽港、航运中心和城市经济金融贸易中心之间的相互关系，说明上海经济金融贸易中心的建立，必须以发达的航运业为基础，而枢纽港建设是航运发展、航运中心建立的关键。上海枢纽港的建设，有利于增强与亚太地区其它中心港、枢纽港的竞争能力，从而更好地参与世界集装箱运输大循环，有利于加快上海经济金融贸易中心的建立，促进上海经济的快速发展。同时文章从上海及周边腹地经济的发展状况等方面阐述了上海建设国际枢纽港的可能性，最后指出了拓宽融资渠道，加快上海枢纽港建设的途径。     

航运服务业集聚模式的生成机理及要素研究——推进上海国际航运中心建设的思考

为了研究航运服务业集聚的生成模式和生成要素,本文在对服务业集聚理论研究的基础上,根据市场和政府对航运服务业集聚的作用,将其生成模式划分为自然生成模式、政府主导型生成模式和混合推动型生成模式,并分别结合伦敦、新加坡和上海三个城市的航运服务业集聚模式的生成要素进行了系统研究。     

《国际海运危险货物规则》40-20修正案主要修订内容介绍

在介绍《国际海运危险货物规则》(IMDG规则)40-20版修正案的修订脉络基础上,从危险货物分类、一览表及特殊规定等4个方面分析了修正案的主要修订内容,并根据修订情况提出相应的措施建议。     

Benefit of speed reduction for ships in different weather conditions

Currently, the shipping industry is facing a great challenge of reducing emissions. Reducing ship speeds will reduce the emissions in the immediate future with no additional infrastructure. However, a detailed investigation is required to verify the claim that a 10% speed reduction would lead to 19% fuel savings (Faber et al., 2012).This paper investigates fuel savings due to speed reduction using detailed modeling of ship performance. Three container ships, two bulk carriers, and one tanker, representative of the shipping fleet, have been designed. Voyages have been simulated by modeling calm water resistance, wave resistance, propulsion efficiency, and engine limits. Six ships have been simulated in various weather conditions at different speeds. Potential fuel savings have been estimated for a range of speed reductions in realistic weather.It is concluded that the common assumption of cubic speed-power relation can cause a significant error in the estimation of bunker consumption. Simulations in different seasons have revealed that fuel savings due to speed reduction are highly weather dependent. Therefore, a simple way to include the effect of weather in shipping transport models has been proposed.Speed reduction can lead to an increase in the number of ships to fulfill the transport demand. Therefore, the emission reduction potential of speed reduction strategy, after accounting for the additional ships, has been studied. Surprisingly, when the speed is reduced by 30%, fuel savings vary from 2% to 45% depending on ship type, size and weather conditions. Fuel savings further reduce when the auxiliary engines are considered.     

Collision course? The North Airfield Safety Study at Los Angeles International Airport (LAX)

The LAX North Airfield Safety Study was undertaken by an Academic Panel consisting of the present authors, and was based in large part on a simulation that was conducted at FutureFlight Central at NASA Ames Research Center. The primary aim of the study was “to estimate as specifically as possible the level of future safety associated with several geometrical configurations of the LAX North Airfield.” This paper describes the study, and how it combined information from human-in-the-loop simulations at NASA with historical data from LAX and other US airports about runway incursions and collisions. The analysis indicated that, even under its existing physical layout, LAX North would experience very low risk of runway collisions at traffic levels projected for 2020. That risk could be reduced by about half if the North Airfield runways were reconfigured, and some reconfigurations would also add appreciably to the operational efficiency of the airport. But because the “baseline” level of risk is so low, the Study concluded that “it would be difficult to construct a compelling case on safety grounds alone for reconfiguring the North Airfield.”     

SOLAS、MLC2006和CFR中若干问题的探讨

文中概述了国际海事公约和国外规则,包括SOLAS、MARPOL、COLREG、MLC 2006和CFR等读者不易理解的正文和附则中"章"、"分章"、"部分"、"节"、"分节"和"条"的编排和解释所出现的中文不同表述,简要介绍了美国CFR和FR相关法规中或多或少尚可更加明晰的表示方法,并说明CFR和FR之间的关联。为那些对国际公约感兴趣,且欲进一步理解海事公约和规则的读者提供建议。     

成都地铁票务管理信息化实践

针对成都地铁票务管理上的难点和痛点,通过信息化手段和互联网+的应用,对原有的现金收益审核工作进行无纸化改造,在车站购票/充值环节提供移动支付功能,解决票务运作上重复性工作量大、人工作业环节效率低易出错、业务人员数量随着线网规模不断增大等突出问题,基本实现票务管理的信息化、自动化和网络化,提质、增效、降成本效果显著。同时相关功能均是基于已运营的线路进行改造,可为其他城市改变既有的票务管理提供借鉴。     

国际工程物资采购和管理风险分析与对策

随着改革开放的不断深入和国民经济的快速发展,我国施工企业参加国际工程承包项目的机会越来越多。但在国际工程项目建设中,所需的物资采购和管理是一个关键环节,处理不好可能存在各种风险,给企业造成经济损失。此文根据国际工程物资采购和流转的特点,对物资采购和管理过程中存在的风险进行识别与分析。通过分析,提出防范和控制风险的对策及建议。     

机车用铸钢轮心表面缺陷和辐板焊修的探讨

分析TB/T1400—2005《机车用铸钢轮心技术条件》,总结出一些新造机车铸钢轮心表面允许和不允许存在的缺陷。介绍某机车整体车轮崩裂事故,分析发生事故的原因。认为铁道部铁运〔2007〕128号文《铁路机车车轮管理办法》的部分规定存在不合理性,叙述对技术文件的理解和认识。