不同规模民用机场项目主要环境影响对比分析

按照在民航运输系统中所起的作用划分，我国民用机场可分为枢纽机场、干线机场和支线机场。由于建设规模、航空业务量不同，各类机场环境影响的范围、程度和特点也不尽相同。通过对国内机场建设项目环境影响的案例和相关研究成果进行总结，从声环境、环境空气、生态、水环境、固体废物等方面对比分析了不同规模机场的环境影响的特点，为机场选址、设计、规划等提供参考。     

The life cycle of rice: LCA of alternative agri-food chain management systems in Vercelli (Italy)

The Vercelli rice district in northern Italy plays a key role in the agri-food industry in a country which accounts for more than 50% of the EU rice production and exports roughly 70%. However, although wealth and jobs are created, the sector is said to be responsible for environmental impacts that are increasingly being perceived as topical. As a complex and comprehensive environmental evaluation is necessary to understand and manage the environmental impact of the agri-food chain, the Life Cycle Assessment (LCA) methodology has been applied to the rice production system: from the paddy field to the supermarket. The LCA has pointed out the magnitude of impact per kg of delivered white milled rice: a CO_2eq emission of 2.9 kg, a primary energy consumption of 17.8 MJ and the use of 4.9 m³ of water for irrigation purposes. Improvement scenarios have been analysed considering alternative rice farming and food processing methods, such as organic and upland farming, as well as parboiling. The research has shown that organic and upland farming have the potential to decrease the impact per unit of cultivated area. However, due to the lower grain yields, the environmental benefits per kg of the final products are greatly reduced in the case of upland rice production and almost cancelled for organic rice. LCA has proved to be an effective tool for understanding the eco-profile of Italian rice and should be used for transparent and credible communication between suppliers and their customers.     

基于模糊网络分析法的机场旅客安检系统保障能力评估

为评估机场旅客安检系统的保障能力,并针对评估过程中存在的不确定性和指标中影响因素之间的不独立性,采用模糊网络分析法(Fuzzy-ANP)建立系统评估模型。在综合考虑安检影响因素的前提下,从人、机、环、管四方面建立了机场旅客安检系统保障能力评估指标体系。以某机场为例,应用模型进行实证分析得出结论,影响该机场旅客安检系统保障能力的主要因素为员工工作量、员工心理状况和设备完好率。研究表明,评价结果与该机场实际运营状况相符合,该方法能更好地满足机场运营安全管理的实际要求。     

不同规模民用机场项目主要环境影响对比分析

按照在民航运输系统中所起的作用划分,我国民用机场可分为枢纽机场、干线机场和支线机场。由于建设规模、航空业务量不同,各类机场环境影响的范围、程度和特点也不尽相同。通过对国内机场建设项目环境影响的案例和相关研究成果进行总结,从声环境、环境空气、生态、水环境、固体废物等方面对比分析了不同规模机场的环境影响的特点,为机场选址、设计、规划等提供参考。     

民用机场空防安全的风险管理研究

主要通过对民用机场空防安全存在的风险从作业人员、设备和设施、环境、管理等4方面进行识别;以系统的观点为基础,结合相关法规,建立空防安全风险评价指标体系;运用AHP方法对民用机场的空防安全进行风险研究,并通过研究、分析计算数据,查找、预测民用机场空防系统中存在的一些不足和缺陷;针对机场保安、管理、规章制度等方面的不足,结合中国民航和民用机场的现状及实际情况提出相应的建议性措施,以期达到最低事故率、最少损失和最优的安全投资效益。     

Environmental and socio-economic evaluation of four different sites for a domestic airport

During World War II, a military airport was built inside the city of Reykjavik. This airport then became the centre of domestic aviation for the whole country. Today, 50 years later, the airport tract has become valuable for urban development. The city government therefore wants the airport relocated. Four different sites have been considered. The first alternative is to maintain the airport in the same place. A second alternative is based on reclaiming land alongside the present airport. A third possible site is in a rugged lava field south of Reykjavik, and the fourth alternative is to move the domestic traffic to Keflavik International Airport about 60 km away. The relocation has become a hot issue in the country. The people living in the countryside want to keep the airport in the same place. On the other hand, people living in Reykjavik see the airport land as valuable potential for urban development close to the city centre. To approach this debate in an orderly fashion, the four sites have been studied from an environmental and socio-economic point of view. The four alternatives are classified by four different categories: (1) economy and capital investment, (2) social impacts, (3) direct environmental consequences, and (4) public safety. Firstly, the last three categories were evaluated and weighted, and all four alternatives graded according to their environmental quality. Secondly, using the results of a separate cost-effectiveness study, a Pareto optimality solution is suggested. Finally, sensitivity analysis was carried out to investigate how the “environmental” factors through their variation can influence the final selection.     

环境产业金融支持的框架构建分析

现阶段我国环境产业面临严峻的资本形成不足、发展资金短缺的困境，对产业发展形成严重制约。环境产业金融支持理应成为推进我国环境产业和经济可持续发展的战略性机制和基本途径。文章从环境产业资本形成、投资效率，金融运行三个角度进行了分析，梳理了环境产业发展进程中金融支持的内生逻辑，为环境产业金融支持的框架构建提供了理论依据。     

Australian junior exploration floats, 2001–06, and their implications for IPOs

An analysis of 179 junior exploration floats, listed on the Australian Securities Exchange (ASX) between July 2001 and June 2006, helped to build a basic understanding of the strategy and business structure of these companies. The “typical” junior explorer raised A$4 million at initial public offering (IPO) to finance a 2-year, mainly greenfields exploration program. The capital raised at IPO entitled its investors to approximately half of the company, with the balance in the hands of the promoters, vendors and/or seed capital investors. Of the A$4 million raised at IPO, it intended to spend approximately two-thirds on exploration, while the remainder was absorbed in corporate overheads and the costs of the IPO. Once these were paid, ongoing corporate overheads averaged approximately 28% of its total operational expenditure. However, given an average total annual expenditure of approximately A$2.6 million, most juniors held insufficient capital reserves to meet operational costs beyond a time frame of 2 years. As at October 2006, 9% of the companies were in the process of mine construction, whereas 6% had made it to producer status. The lead time from listing to production ranged from 1.5 to 53 months, giving a median of 28 months.     

On The Research of Foreign and Domestic Human Capital Theory

1INTRODUCTION Human Capital Theory(HCT)'s idea origin recalls westernclassical political economics in the eighteen century.HCTcame into being in the middle and later periods of the20century,sprang up in the1960s and1970s,was introducedinto China in the1980s and is still one of the hotspotsin economic research.Foreign and domestic scholars havemade a lot of deep researches and important achievements.2FOREIGN RESEARCHIn the1950s,facing many"economic enigma"such as"Solow residual"an…     

机场鸟击事故灾害的生态防治

从生态学角度分析了机场鸟击事故灾害发生的根源和特点，概述了鸟击灾害的生态防治措施，包括主动性防治和被动性防治，以及计算机和信息技术的应用。指出鸟击灾害已经成为机场飞行安全的主要威胁之一；生态综合防治是机场鸟击事故灾害防治的根本手段。