Comparative assessment and essential analysis on new international GHG emission reduction proposals

Since Kyoto Protocol came into force on February 16, 2005, the endeavor by international society to combat the climate change has stepped into a new milestone. The greenhouse gas （GHG） abatement mechanisms in Kyoto Protocol have served a remarkable function but also been questioned during the practices of past three years about its environmental effectiveness. A lot of new international GHG emission reduction proposals are proposed from many new a.spects, some of which especially impose pressure on developing countries. So it is of great importance to research on these new proposals in time for negotiation beyond Kyoto and institution of Chinese relevant climate policies. As this paper focutses on the way of commitment distribution of mechanisms, the mechanisms here are categorized in one of two types： those distribute commitment based on countries and those based on sectors. Some of the typical mechanisms are selected to be analyzed comparatively, especially about their influence on developing countries,E-mail address： jiangdongmei@tsinghua.edu.cn     

论企业绩效评价系统优化——基于共生理论的思考

现有的企业绩效评价模式在实际应用中表现出各种局限性,相应的绩效评价理论虽在不断发展,但仍存在诸多缺陷.共生理论的应用为绩效评价研究开拓了新的视角,以共生理论为基础构建的多元化绩效评价系统优化了传统的评价模式,更有效地推动了企业价值创造以及企业的可持续发展.     

论生态教育视野下学科发展的内生动力机制

学科水平决定一所大学的水平,加强学科的发展和建设有利于提升高校的整体水平和综合实力。教育生态化是以生态学的生态观念为价值取向形成的一种教育新理念。通过对目前我国学科发展的特点和趋势及学科发展的动力机制的介绍,提出了生态教育视野下掌握学科发展的内生动力机制,促进高校学科的和谐发展的对策。     

基于空谱特性的高光谱图像压缩感知重构

针对现有的高光谱图像压缩感知重构算法对图像的空谱特性利用不够充分,导致重构图像质量不够高的问题,提出了一种高光谱图像变投影率分块压缩感知结合优化谱间预测重构方案。编码端以频段聚类方式将高光谱图像的所有频段分成参考频段和普通频段,对不同频段单独采用不同精度分块压缩感知以获取高光谱数据。在解码端,参考频段直接采用稀疏度自适应匹配追踪(SAMP)算法重构,对于普通频段,则设计了一种优化谱间预测结合SAMP算法的新模型进行重构：首先通过重构的参考频段双向预测普通频段,并对其进行压缩投影,然后计算预测前后普通频段投影值的残差,最后利用SAMP算法重构该残差,以此修正预测值。实验表明,相比同类算法,该算法充分考虑了高光谱图像的空谱特性,有效改善了重构图像质量,且编码复杂度低,易于硬件实现。     

Causal Linkages among the Product Diversification of Exports,Economic Globalization and Economic Growth

This paper examines causal relationships between economic globalization, the three indices for product diversification of exports (Theil index, intensive margin and extensive margin) and economic growth in the unbalanced panel data framework in 139 countries over the period 1970–2010. We also consider the subgroup of the countries related to the income levels and run the panel Granger non‐causality tests for heterogeneous panels. The empirical results indicate that there is a bidirectional causal relationship between economic globalization and economic growth. There is also a significant causal relationship that runs from all three indices for the diversification of exports to economic growth. After implementing various robustness checks, we observe that diversification of exports and economic globalization are positively related with economic growth merely in the upper middle economies.     

浅议保护和传承中国邮驿文化遗产

文章回顾了中国古代邮驿的发展进程,呼吁中国邮政将邮驿作为文化遗产进行传承和保护,探讨了传承和保护中国邮驿的具体措施。     

我国港口物流业的发展战略研究

国际运输和现代物流的一体化趋势的长足发展 ,加强了港口在物流链中的战略地位 ,同时也带来了新的挑战。本文在全面分析我国港口面临的挑战的基础上 ,建议从宏观、微观、技术等三个方面重新定位我国港口物流业的发展战略     

基于模糊综合评判法的中小信用担保机构评级研究

本文基于模糊数学理论建立了中小担保机构评价体系,并通过实际案例检验了其有效性。该评价体系不仅能够对企业整体信用等级进行比较科学而合理地评价,而且能够计算出影响企业资信状况的内部各因素的等级状况,从而为管理者深入了解企业内部状况提供科学依据。     

基于旅游景区拓展创新的江南古镇研究——以江苏周庄为例

美丽的江南古镇吸引了越来越多的游客,但狭小的古镇限制游客数量的进一步增多,降低了游客体验质量。如何合理引导游客,降低古镇核心区游客容量成为江南古镇共同面临的问题。本文作者以古镇周庄景区拓展创新作为研究课题,从"水周庄"、"新周庄"和"洋周庄"三个方面研究了古镇周庄景区的拓展创新,并以此基础,设计出新的休闲制度下的周庄旅游线路,对周庄景区的拓展创新、旅游产品内涵的延伸、游客体验质量的提高有着重要的意义。     

成渝城市群与珠三角城市群创新潜力比较及影响因素分析

城市群区域创新一体化对促进区域内部资源优化整合,带动周边城市创新发展具有重大意义。使用随机前沿知识生产模型研究了成渝城市群及珠三角城市群创新潜力,并采用一步法的创新非效率模型分析了影响创新潜力的主要因素。结果表明,随着创新阻力的减少,成渝城市群及珠三角城市群的创新效率在不断提升,且差距逐渐缩小;相比于珠三角城市群,成渝城市群拥有更大的创新潜力。同时,城市群内部各城市之间创新效率差异明显。为进一步提高各城市群的创新效率,应进一步转变经济发展方式,扩大开放,加强政府对创新的扶持力度,优化创新环境,提高工业集聚水平。