报告包括电子商务方面的重要观点、政策与环境、网购平台、行业应用、电商物流、电商金融等研究。

关键词：政策环境；网购平台；电商物流；电商金融

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报告从行业事件分析、政策环境、市场环境、旅游交通、国际环境等相关行业数据方面进行了分析评论。

关键词：政策环境；市场环境；旅游交通；国际环境

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报告从行业事件分析、政策环境、市场环境、旅游交通、国际环境等相关行业数据方面进行了分析评论。

关键词：政策环境；市场环境；旅游交通；国际环境

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报告从行业事件分析、政策环境、市场环境、旅游交通、国际环境等相关行业数据方面进行了分析评论。

关键词：政策环境；市场环境；旅游交通；国际环境

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Li-ion batteries are mainly used in devices such as laptops, smart phones, notebooks, and tablets, owing to their high energy density and rechargeable properties. The newage battery is also finding increasing use in EVs, especially in tandem with the growing popularity of BEVs and PHEVs. Li-ion batteries consist of one or more energy generating compartments called cells. Each cell has three components: a positive electrode (cathode), a negative electrode (anode), and an electrolyte between the two electrodes.

关键词：锂离子电池；设备；高能量密度；充电性能；纯电动汽车；充电式混合动力车

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PEVs can represent a significant power resource for the grid. An IVCI with bi-direction V2G capabilities would allow PEVs to provide grid support services and thus generate a source of revenue for PEV owners. The fleet of EV Project vehicles represents a power resource between 30 MW and 90 MW, depending on the power rating of the grid connection (5-15 kW). Aggregation of vehicle capacity would allow PEVs to participate in wholesale reserve capacity markets. One of the key insights from EV Project data is the fact that vehicles are connected to an EVSE much longer than is necessary to deliver a full charge. During these hours when the vehicles are not charging, they can be participating in wholesale power markets providing the high-value services of regulation and spinning reserves. The annual gross revenue potential for providing these services using the fleet of EV Project vehicles is several hundred thousands of dollars to several million dollars annually depending on the power rating of the grid interface, the number of hours providing grid services, and the market being served. On a per vehicle basis, providing grid services can generate several thousands of dollars over the life of the vehicle.

关键词：电池充电；电池；电动车辆

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The communities of Hartford, Connecticut, and Syracuse, New York, implemented year-long campaigns to test whether NHTSAs high-visibility enforcement (HVE) model could be applied to reduce two specific forms of distracted driving driving while talking on a hand-held cell phone or texting. The HVE model applies strong laws, vigorous targeted law enforcement, extensive media that emphasizes the enforcement, and evaluation. Both sites conducted 4 waves of enforcement between April 2010 and April 2011. NHTSA developed and bought TV and radio spots featuring the tag line Phone in One Hand, Ticket in the Other. Both sites generated ample earned media. Police wrote 100 to 200 citations per 10,000 population for each wave in each site. Driver surveys showed an increase in awareness that cell phone laws were being enforced and recognition of the new slogan. Observed hand-held driver cell phone use dropped from 6.6% to 2.9% in Hartford, and from 3.7% to 2.5% in Syracuse. Connecticuts control area also showed a decrease in use (from 6.6% to 5.6%) but not to the same extent as Hartford. New Yorks control area had similar decreases (5% to 3%), perhaps a result of separate enforcement campaigns running simultaneously in the control site. The results show that high-visibility enforcement campaigns can reduce the number of people who use hand-held cell phones while driving.

关键词：电动汽车；空气转换；供电效率；公共安全

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Mechanics of a functionally graded cylinder subject to static or dynamic axial loading is considered, including a potential application as energy absorber. The mass density and stiffness are power functions of the radial coordinate as may be the case with variable-density open-cell or closed-cell foams. Exact solutions are obtained in the static problem and in the case where the applied load is a periodic function of time. The absorption of energy is analyzed in the static problem that is reduced to an easily implementable nondimensional formulation. It is demonstrated that by using foams with a variable in the radial direction mass density it is possible to achieve higher energy absorption while at the same time saving weight.

关键词：燃料电池；电动汽车；能量梯度

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Creating transportation infrastructure, which can clean up itself and contaminated air surrounding it, can be a groundbreaking approach in addressing environmental challenges of our time. This project has explored a possibility of depositing coatings on the existing materials to address a feasibility of this approach. More specifically, we have quantified the rates of removal of pollutants from the air by a new generation of coatings, which can be applied on any architectural elements and transportation infrastructure. We have also used indicators synthesized in our lab to demonstrate the self-cleaning properties of these now commercially available coatings. In addition, we have worked with the company pioneering this technology in the US and Europe to scope the new application of this technology. The survey of the existing and future commercial projects has indicated that this technology is already leading to very exciting applications in transportation sector, where concrete, asphalt, steel, glass and masonry surfaces will become green and sustainable interfaces mitigating the environmental and health impacts of transportation. The results obtained in this project have a significant relevance to the USDOT goals, such as development of livable communities by providing an access to environmentally sustainable travel options. Moreover, it has also relevance to another DOT goal focused on environmental sustainability, where self-cleaning properties of the coatings have a potential to improve both energy and water conservation.

关键词：大气；空气治理；空气净化

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Urban mobility is not only one of the pillars of modern economic systems, but also a key issue in the quest for equality of opportunity, once it can improve access to other services. Currently, however, there are a number of negative issues related to traffic, especially in mega-cities, such as economical issues (cost of opportunity caused by delays), environmental (externalities related to emissions of pollutants), and social (traffic accidents). Solutions to these issues are more and more closely tied to information and communication technology. Indeed, a search in the technical literature (using the keyword "urban traffic" to filter out articles on data network traffic) retrieved the following number of articles (as of December 3, 2013): 9,443 (ACM Digital Library), 26,054 (Scopus), and 1,730,000 (Google Scholar). Moreover, articles listed in the ACM query relate to conferences as diverse as MobiCom, CHI, PADS, and AAMAS. This means that there is a big and diverse community of computer scientists and computer engineers who tackle research that is connected to the development of intelligent traffic and transportation systems. It is also possible to see that this community is growing, and that research projects are getting more and more interdisciplinary. To foster the cooperation among the involved communities, this book aims at giving a broad introduction into the basic but relevant concepts related to transportation systems, targeting researchers and practitioners from computer science and information technology. In addition, the second part of the book gives a panorama of some of the most exciting and newest technologies, originating in computer science and computer engineering, that are now being employed in projects related to car-to-car communication, interconnected vehicles, car navigation, platoon-ing, crowd sensing and sensor networks, among others. This material will also be of interest to engineers and researchers from the traffic and transportation community.

关键词：智能交通系统；交通模型；交通仿真

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