新能源世博用车示范运行行驶工况研究

新能源汽车由于具有明显的节能和环保优势而成为各国汽车工业研究开发的热点。2010年上海世博会为新能源汽车提供了规模宏大的示范运行机会,本文通过项目研究阐述了新能源世博用车示范运行行驶工况的建立,并为形成一套完整的电动汽车行驶工况构建规范方法提供了技术支持。     

我国家电产业出口发展战略浅析:比较优势还是竞争优势

近年来,我国家电产品出口发展态势良好,但是也存在一定的问题,而问题的解决则依赖于其出口发展战略的合理选择。通过分析比较优势和竞争优势两种发展战略对当前我国家电产业的适用性,笔者认为:一方面,要继续发挥我国的比较优势,更好实现我国家电产业的升级;另一方面,要以竞争优势为发展方向,把我国家电产业做大做强。     

The accuracy of long-term earnings forecasts in the electric utility industry

This paper examines the accuracy of various methods of forecasting long-term earnings growth for firms in the electric utility industry. In addition to a number of extrapolative techniques, Value Line analyst forecasts are also evaluated. Value Line analyst forecasts for a five-year time horizon are found to be superior to many of the extrapolative models. Among the extrapolative models examined, implied growth and historical book value per share growth rate models performed best. These results provide strong support for using Value Line growth forecasts in cost of capital estimates for electric utilities in the context of utility rate cases. Value Line forecast errors could be explained by changes in dividend payout ratios, the firm's regulatory environment and bond rating changes.     

低温环境下的电动汽车性能影响研究

对比常温和低温两种外部环境条件下温度对电动汽车性能的影响,找出适合本地化的电动汽车电池温度控制方式,有利于降低生产成本。     

地方政府融资平台发展综述

地方政府融资平台是在我国投融资体制改革的过程中产生的,目前已成为地方政府运用市场手段建设公共基础设施的重要载体。地方政府融资平台的发展历程包含4个阶段,包括初创萌芽阶段、起步探索阶段、稳步发展阶段、扩张繁荣和规范发展阶段,各阶段展示出了不同的特点和发展规律。     

电力行业专利标准化研究

随着科学技术的迅速发展和经济全球化的不断深入,标准化水平已成为企业核心竞争力的基本要素。其中专利技术的标准化又使得技术标准的强势与专利权的优势相结合,使得知识产权权利人的市场优势倍增。"得标准者得市场",专利技术标准化已成为国际竞争中新的游戏规则,更是西方大国在国际贸易中的战略手段之一。目前,国外企业利用"技术专利化、专利标准化、标准国际化"的竞争路线取得了较大的技术和市场优势。而尚处于专利标准化起步阶段的我国企业却面临着极大挑战,尤其在技术密集型的电力行业,各个主要电力企业正在积极推进"走出去"战略,其面临来自国外企业专利标准的挑战更大。因此,本文首先分析了我国企业面临的挑战及外国企业实施专利标准化战略的成功经验,并结合电力行业的特点,提出专利标准化建设建议,构建电力行业专利标准化战略。     

Socially optimal replacement of conventional with electric vehicles for the US household fleet

In this study, a framework is proposed for minimizing the societal cost of replacing gas-powered household passenger cars with battery electric ones (BEVs). The societal cost consists of operational costs of heterogeneous driving patterns' cars, government investments for charging deployment, and monetized environmental externalities. The optimization framework determines the timeframe needed for conventional vehicles to be replaced with BEVs. It also determines the BEVs driving range during the planning timeframe, as well as the density of public chargers deployed on a linear transportation network over time. We leverage data sets that represent US household driving patterns, as well as the automobile and the energy markets, to apply the model. Results indicate that it takes 8 years for 80% of our conventional vehicle sample to be replaced with electric vehicles, under the base case scenario. The socially optimal all-electric driving range is 204 miles, with chargers placed every 172 miles on a linear corridor. All public chargers should be deployed at the beginning of the planning horizon to achieve greater savings over the years. Sensitivity analysis reveals that the timeframe for the socially optimal conversion of 80% of the sample varies from 6 to 12 years. The optimal decision variables are sensitive to battery pack and vehicle body cost, gasoline cost, the discount rate, and conventional vehicles' fuel economy. Faster conventional vehicle replacement is achieved when the gasoline cost increases, electricity cost decreases, and battery packs become cheaper over the years.     

我国混合动力客车产业发展对策研究——基于SWOT的分析

混合动力客车(HEB)作为节能环保的新型交通工具已成为客车产业的发展趋势。在我国混合动力客车的发展还处于成长阶段。采用SWOT分析方法,分析研究我国的混合动力客车产业发展,并针对现状提出相关建议。     

Infrastructure development for alternative fuel vehicles on a highway road system

A new mathematical model for positioning alternative fuel (AF) refueling stations on directed-transportation networks with the objective of maximizing the coverage of path flow volume is proposed. This model is especially designed for developing an AF infrastructure on toll roads and other highways, where vehicles do not need to exit the road network for refueling, some candidate station locations are not located at interchanges, and some stations may only service vehicles on one driving direction. The proposed model is applied to the Pennsylvania Turnpike System using the 2011 truck traffic data and considering different vehicle driving ranges.     

道路车辆路试实录动态环境条件的实验室检测标准化

汽车路试实录动态环境条件实验室再现会存在差异，而影响产品评估的可比性和互认，本文对如何在实验环境中“路谱”再现标准化过程及要素进行阐述，同时列举了一些验证中可能产生影响的因素。供拟订试验谱或试验设计时参考。