二级公路改扩建为高速公路设计关键问题探讨

结合改扩建工程的设计工作,对二级公路改扩建为高速公路设计关键问题进行探讨,提出了合理的解决措施。指出此类公路改扩建设计成功的重要保证是注重既有道路评价及细节设计,灵活运用技术指标。     

目标教学在高职高专英语教学中的运用

本文结合我院开展大学英语目标教学一年来的经验与教训,以教育心理学家布卢姆的教育理论为指导,对如何在高职高专院校中开展大学英语目标教学展开讨论。     

我国船舶抵押权登记法律性质及审查标准分析

文中从船舶抵押权的概念入手，梳理了我国船舶抵押权登记与设立的关系以及船舶抵押权设立的程序，以此为基础对船舶抵押权登记的法律性质进行了探讨，分析了我国船舶登记机关现行的船舶抵押权登记审查标；住及存在的问题，结合当前我国相关立法提出了新的船舶抵押权登记审查标准，为船舶抵押权工作提供参考．     

后示范高等职业院校发展规划的战略设计

战略规划设计是高等职业院校战略规划的先导与重点。本文从高等院校战略管理的视角梳理了高等学校战略规划的演进流程、高职院校制定与实施战略规划的条件,介绍了战略规划流派与战略规划的编制模式,重点分析了战略规划主体文本结构的战略目标体系、完成战略目标的战略链、战略规划实施的重点项目与战略措施,对处于起草阶段的高职院校战略规划编制具有一定的指导价值。     

影响填挖方结合段的质量因素及防治措施

结合工程实际．分析了路基填挖方结合段常见病害及成因．并提出了工程防治措施。     

城市轨道交通项目前期工作管理理论与实践

从项目周期理论出发,将基础设施项目管理划分的项目前期工作时期、建设时期和生产运营时期,细分为规划、立项、评估、设计、开工、施工、竣工、投产运营和维护等8个阶段进行研究,提出城市轨道交通项目前期工作管理过程,从长沙市城市轨道交通项目管理实践中总结出特大型项目管理的做法.     

A revised branch‐and‐price algorithm for dial‐a‐ride problems with the consideration of time‐dependent travel cost

Developing demand responsive transit systems are important with regard to meeting the travel needs for elderly people. Although Dial‐a‐ride Problems (DARP) have been discussed for several decades, most researchers have worked to develop algorithms with low computational cost under the minimal total travel costs, and fewer studies have considered how changes in travel time might affect the vehicle routes and service sequences. Ignoring such variations in travel time when design vehicle routes and schedules might lead to the production of inefficient vehicle routes, as well as incorrect actual vehicle arrival times at the related nodes. The purpose of this paper is to construct a DARP formulation with consideration of time‐dependent travel times and utilizes the traffic simulation software, DynaTAIWAN, to simulate the real traffic conditions in order to obtain the time‐dependent travel time matrices. The branch‐and‐price approach is introduced for the time‐dependent DARP and tested by examining the sub‐network of Kaohsiung City, Taiwan. The numerical results reveal that the length of the time window can significantly affect the vehicle routes and quantitative measurements. As the length of the time window increases, the objective value and the number of vehicles will reduce significantly. However, the CPU time, the average pickup delay time, the average delivery delay time and the average actual ride time (ART)/direct ride time (DRT) will increase significantly as the length of the time window increases. Designing the vehicle routes to reduce operating costs and satisfy the requirements of customers is a difficult task, and a trade‐off must be made between these goals. Copyright © 2014 John Wiley & Sons, Ltd.     

桥区通航问题及对策研究综述

从桥梁布设原则、通航河流上桥梁建设论证的内容、通航条件的研究、桥梁碍航原因、桥梁碍航问题的处理方法、通航孔跨度的确定等方面对桥区航道问题及整治技术研究现状进行了归纳和总结,并提出了进一步研究的方向。     

交通职业教育办学定位的思考

针对办学定位的误区,文中从办学定位的内涵、原则出发,分析办学定位的影响因素,提出交通职业教育中“职业特色”定位的观点。     

一种提高舰艇编队质心干扰效果的方法研究

质心干扰是水面舰艇对抗反舰导弹的一种重要手段。文章分析了编队条件下质心干扰存在的问题,提出了采用“二次质心干扰”提高编队质心干扰效果的方法,通过仿真说明了方法的有效性。