民营企业财务管理问题浅析

分析我国民营企业发展过程中财务管理工作方面存在的诸多问题,如财务管理体制问题、投资和筹资问题等;同时针对上述问题提出相应解决方法。     

郑州至万州铁路河南段速度目标值选择

郑州至万州铁路是《铁路"十二五"发展规划》中快速铁路网中重要组成部分,也是河南省"米"字形快速铁路通道的重要组成部分,是我国西南地区通往中原、华北、东北地区便捷快速客运主通道和欧亚大陆桥中快速客运通道的重要组成部分,同时兼顾沿线城际及旅游客流运输。速度目标值是项目最重要的一项参数,而各方意见分歧很大,直接影响到项目的推进,为此结合本线功能定位,从路网布局、运量水平及特征、列车开行方案、运行时间、出行时间价值、工程投资、效益和能耗因素等8个方面,对速度250 km/h和350 km/h两个方案进行系统比较,建议采用350 km/h速度目标值方案,目前这一方案已经通过审查部门组织的各阶段审查,并已经进入实施建设当中。     

城市轨道交通工程投资分析与控制探讨

城市轨道交通是一项系统工程,投资大、回收期长,涉及到多个专业领域,近年来其造价呈上升趋势。如何有效控制工程造价成为专家学者关注的热点和难点,也是制约轨道交通可持续发展的关键。此文根据轨道交通建设工程投资的构成,从多个专业出发,根据有关统计数据和参考指标,对各系统造价进行分析,找出影响工程造价的主要因素,并针对其主要因素提出优化设计方案、合理确定车站结构和规模、车站装修标准、提高国产设备应用化率、统筹线网规划,注重资源共享等控制工程造价的有效措施。     

论设计在项目投资和成本管控中的作用

在国际工程EPC总承包模式下,加强设计对项目投资和成本的管理与控制至关重要,并直接影响到承包商的经济效益.此文分析设计在项目投资和成本管控存在主要问题的基础上,通过工程实例,就设计在总价合同项目和单价合同项目中起到的管理和控制作用进行论述,结果表明,进行设计方案比选和优化,可以节省工程投资,降低项目成本.     

大临工程设置与投资控制合理性分析

投资控制是每个建设项目最重要的内容之一。搞好工程项目投资控制,要做到全方位、全过程、有重点的控制,虽然大临工程的投资只占项目总投资的1%～3%,但它的设置是否合理却将对整个项目能否如期完成起到重要作用。此文结合铁路建设项目实际,从3个方面介绍了不同地形、不同地质条件下如何合理设置大临工程施工场地,以达到既满足工程需要又节省投资的目的,为大临工程设计者提供参考。     

分布式覆盖技术在WCDMA网络建设中的应用

从分布式覆盖技术概念、组网设备、组网方式等方面对以RRU设备为主体的分布式覆盖技术进行了阐述,从而总结出其技术特点;以山西省临汾市WCDMA试验网为背景,突出了分布式覆盖技术在3G网络建设方案中的应用,并且得出投资、建设周期、安全、扩容性等方面的结论.     

Serving vs. settling: What drives the establishment of low-cost carriers’ foreign bases?

This paper uses a probit model on a cross-sectional dataset of 202 airports and 29 airlines to assess the drivers for the establishment of foreign bases by European low-cost carriers (LCCs). We find that managerial, organizational, and environmental factors impact on foreign base establishment. In particular, there is evidence that the presence of a growth-oriented firm leader and the strategic importance of an airport for an airline significantly increase the probability of the presence of bases, while national unit labor costs, the volatility of flight operations and the membership of an LCC in an airline group significantly decrease this probability.     

Transit investment and economic development

This paper describes the development of approaches to analysing the links between investment in transit and economic development. It indicates the need to bring together disparate approaches from urban economics and transportation economics to get a full understanding and uses recent results on agglomeration economies to present a more rigorous model of the wider economic benefits of transit investment. Although the evidence increasingly points towards identifiable benefits over and above those captured in conventional transport cost-benefit analysis, the chapter counsels against the assumption of simple rules.     

交通工程建设项目方案投资效果的研究

从投资效果的实际问题出发，对不同投资方案的优缺点进行了分析，提出了补加投资效果分析中带有一些规律性的问题，并对多方案比较方法作了举例说明。     

Increasing urban tram system efficiency,with battery storage and electric vehicle charging

This paper examines the possible placement of Energy Storage Systems (ESS) on an urban tram system for the purpose of exploring potential increases in operating efficiency through the examination of different locations for battery energy storage. Further, the paper suggests the utilisation of Electric Vehicle (EV) batteries at existing Park and Ride (P&R) sites as a means of achieving additional energy storage at these locations. The study achieves this through MATLAB modelling utilising captured GPS data and publically available information. This study examines the scenario of uni-directional substations with no interconnection between the overhead catenary for both directions of travel, and discusses the trade-offs between ESS size and required current limits.The results show the savings in both energy and basic CO₂ emissions alongside the discussion of Return on Investment (RoI) that can be achieved through the potential installation of ESS at identified ideal locations along the tram network. Moreover, this may be extended to the use of EVs as stationary ESS sited at the existing P&R facilities. Further, the model may also be used to inform future infrastructure upgrades and potential improvements to air quality within urban environments.