论高校学报编辑应具备的素质

高校学报发表的文章科技含量高、学术性理论性强,因而对学报编辑人员的素质提出很高的要求．本文就知识经济和网络经济时代学报编辑人员应具备的素质作了较详细的论述．     

新确报格式的设计及实现

铁路确报是铁路运输生产的重要内容,是铁路TMIS中重要的信息之一,既有的确报格式存在一些弊端,更改确报格式已成为提高确报信息质量的必须工作.介绍新确报格式内容以及实现流程.     

Index numbers for monitoring transit service quality

The measurement of transit service quality is very important for guaranteeing a transport supply characterized by satisfactory service levels for the passengers. Even more important is the monitoring of the levels of service quality over time, which can be very useful to determine if the goals established by the transport planners are being met or exceeded. The status and evolution of transit service quality can be monitored through periodic and regular updating of the opinions expressed by the passengers about the service during the well-known Customer Satisfaction Surveys, allowing the effect of policies to be evaluated and specific interventions to be introduced. In this work, just the issue of monitoring service quality based on users’ opinions is approached, and the index numbers usually applied in the economic and industrial field are proposed for this purpose. Index numbers permit to study the fluctuations or variations of a variable or more variables over time, providing a powerful measurement for making comparisons and predictions of the analyzed concept. The index numbers were calculated on the basis of data collected from Customer Satisfaction Surveys addressed to the passengers of the metropolitan public service of Granada (Spain). The analyzed time period has been established from 2007 to 2013. Interesting results derive from the calculation of the index numbers. Since both perceptions and importance rates are considered in this methodology, the results can inform, not only on the satisfaction tendencies but also on the trend on customers’ priorities, which is actually the expected quality. Therefore, policies could more efficiently be designed to adjust the service to the users’ real needs.     

液压锚机齿轮质量问题探讨

针对船舶液压锚机在检验过程中暴露的质量问题,从齿轮表面质量、齿轮啮合不正常磨损及齿轮啮合噪声等4个方面进行讨论分析,提出相应的解决措施。     

Cruise activity and pollution: The case of Barcelona

One of the main causes of mortality worldwide is air pollution. To tackle this problem, local, regional and national governments have implemented policies to reduce emissions from industrial and on-road sources. However, when these policies are being designed, shipping emissions are often overlooked. There has been a drastic increase in the demand for cruises and its economic relevance is also growing in port-cities. Barcelona is Europe’s leading cruise port, and it is located near the centre of the city. In this context, this paper analyses the impact of cruise ships in the air quality of the entire city of Barcelona using a dataset with information about pollutants and the number of cruises arriving to the port. We show that there is a direct impact between cruises staying at the port and city pollution. Additionally, the size and age of the cruise also affect air quality. The larger (or newer) the cruise is, the higher the emission generated. Moreover, our simulations show that the whole city is affected by these emissions.     

高速铁路通信工程施工质量验收标准解读

新修订的《高速铁路通信工程施工质量验收标准》TB 10755于2018年发布,2019年2月1日正式实施。本文结合工程实际,综合考虑技术进步、管理水平发展、国家相关法律法规以及有关标准的更新等因素,总结设计、施工、监理等单位的经验,从标准修订的背景,新标准整体上的变化,以及各系统的细节变化等方面,对新验收标准进行了详细解读。     

Customers’ selections between premium electric taxis and liquefied petroleum gas taxis

Reducing roadside emissions is a common challenge in metropolitan cities. In Hong Kong, conventional liquefied petroleum gas taxis are one of the main contributors to roadside emissions as they operate on the streets 24 h a day with a long daily driving mileage. Moreover, these taxis suffer from a severely poor service reputation. To enhance the environmental friendliness and service quality of the taxi industry, this study explores the market potential of operating premium electric taxis in the dispatching mode. A stated preference survey was conducted to 1410 taxi customers about their taxi-riding choices between premium electric taxis and conventional liquefied petroleum gas taxis. In total, 5640 observations were obtained and used to develop a series of binary logistic regression models with different model formulations for the determination of the significant factors influencing customers’ selections. The findings indicate that walk time to and wait time for taxis were the most critical concerns to the customers, and they were more willing to take premium taxis if their journey distance was longer and their desired improvement on taxi service quality was greater. The socio-demographic status of taxi customers also influences their choices. The associated policy implications are discussed for promoting taxis with better service quality and fewer roadside emissions. The findings provide some policy insights to other international cities that have a similar taxi market to Hong Kong.     

A Football Field Lost Every 45 Minutes: Evaluating Local Capacity to Implement Louisiana's Coastal Master Plan

As Louisiana continues to experience substantial coastal wetland loss—at the rate of a football field every 45 min—and multiple disasters, state and federal officials struggle with implementing restoration plans in this highly productive ecosystem. The 2007 Louisiana Comprehensive Master Plan for a Sustainable Coast is the first large-scale restoration plan in the United States to incorporate hazard mitigation. However, there is no mandate for local governments to adhere to this plan. Building upon the planning quality and evaluation literature, this study analyzes comprehensive land use plans in Louisiana's coastal zone to systematically assess the quality of the plans within the context of a non-mandated, $50 billion large-scale state restoration plan. Results indicate a great disparity in plan quality; a majority of the local governments lack the capacity to implement the nonstructural programmatic elements of the state's plan. The study concludes with a discussion and recommendations for practice and future research.     

石料质量综合评估法在海外防波堤工程中的应用

针对海外防波堤工程中经常遇到的石料质量不能满足技术规格要求的问题,对国外规范和文献中关于石料质量评估方法的研究成果进行分析。通过将石料质量综合评估法在海外某实际工程中进行应用,并结合设计方案采取施工措施,解决了该工程的石料来源问题。