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51.
52.
This article analyses the UK legislation which will implement the UNCTAD Code of Conduct for Liner Conferences. The historical background to the Merchant Shipping (Liner Conferences) Act, 1982 is outlined and the author points out the relative decline of the UK merchant fleet in the face of competition from developing maritime nations, socialist countries and the USA. Provisions in the UK act curtailing the provisions of the Code are described. UK opposition to the cargo sharing and flag preference provisions of the Code is described and the article concludes by arguing that, although the Code does not satisfy all the UK demands, it remains the best option in a world increasingly dominated by protectionism.  相似文献   
53.
Surveying co-located space-geodetic instruments for ITRF computation   总被引:2,自引:2,他引:0  
A new and comprehensive method is presented that can be used for estimating eccentricity vectors between global positioning system (GPS) antennas, doppler orbitography and radiopositioning integrated by satellites (DORIS) antennas, azimuth-elevation (AZ-EL) very long baseline interferometry (VLBI) telescopes, and satellite laser ranging (SLR) and lunar laser ranging (LLR) telescopes. The problem of reference point (RP) definition for these space-geodetic instruments is addressed and computed using terrestrial triangulation and electronic distance measurement (EDM) trilateration. The practical ground operations, the surveying approach and the terrestrial data processing are briefly illustrated, and the post-processing procedure is discussed. It is a geometrically based analytical approach that allows computation of RPs along with a rigorous statistical treatment of measurements. The tight connection between the geometrical model and the surveying procedure is emphasized. The computation of the eccentricity vector and the associated variance–covariance matrix between an AZ-EL VLBI telescope (with or without intersecting axes) and a GPS choke ring antenna is concentrated upon, since these are fundamental for computing the International Terrestrial Reference Frame (ITRF). An extension to RP computation and eccentricity vectors involving DORIS, SLR and LLR techniques is also presented. Numerical examples of the quality that can be reached using the authors approach are given. Working data sets were acquired in the years 2001 and 2002 at the radioastronomical observatory of Medicina (Italy), and have been used to estimate two VLBI-GPS eccentricity vectors and the corresponding SINEX files.  相似文献   
54.
重点介绍了高精度确定大型天线几何旋转中心的观测方案和计算方法。结合具体实例,在ITRF2000框架下,论述了控制网布设、观测方案确定、数学模型的建立、数据处理的过程,结果与已知外部参考结果进行了比较,坐标分量上达到毫米级外附精度,验证了观测、计算方案的可行性和准确性。  相似文献   
55.
皖南国际旅游文化示范区文化旅游资源整合开发模式   总被引:6,自引:0,他引:6  
程晓丽  胡文海 《地理研究》2012,31(1):169-177
文化旅游是当今世界旅游发展的主流,旅游与文化的关联度渗透性日益增强,如何提升旅游产品的文化内涵,是世界各地旅游业长远发展的关键问题。皖南国际旅游文化示范区包括黄山、池州、宣城、芜湖、马鞍山、铜陵六市及安庆市的潜山县,辖34个县市区,总面积38220km2,总人口1069.6万,是安徽省最具开发潜力的旅游板块,文化旅游资源的品位和富集度都很高,但是在开发过程中存在着开发层次较低、产业链条脆弱、整体旅游形象不明、缺乏王牌产品、整合开发乏力等诸多问题。通过分析示范区文化旅游资源的开发现状及问题,提出了对文化旅游资源开发进行整合的模式,即以空间为依托的地域组合模式、以市场为依托的产品整合模式、以营销为依托的形象整合模式、以产业为依托的文化与旅游互动发展模式等。  相似文献   
56.
This paper responds to increasing discussions about responsibility within geography by exploring some of the spatialities imbued in thinking responsibly about internationalisation in the UK Higher Education system, and it uses the categorisation of the international student as a way in to this exploration. Although international students have been considered from the viewpoint of migration studies, global education studies and critical pedagogical studies, this paper attempts a postcolonial analysis of international students, to consider what forms of pedagogic responsibility are called forth through this framework. Building on bell hooks’ call for an ‘engaged pedagogy’, this paper shows that routing care and responsibility through postcolonial geographies incites a more sharply demanding political praxis.  相似文献   
57.
国际地层委员会最新表决通过第四系为系级年代地层单位,它位于新近系之上,底界由意大利西西里岛的Monte San Nicola"金钉子"定义,也就是由定义格拉斯阶底界的"金钉子"来定义,年龄值约为2.59Ma;更新统的底界也下移到这个位置,格拉斯阶划归更新统,长期争论的第四系的地位和定义问题有望得到解决。  相似文献   
58.
香港港口的发展与粤港港口衔接研究   总被引:2,自引:0,他引:2  
徐群亮 《热带地理》1997,17(2):139-148
本文在宏观上论述了香港港口具有典型的山地溺谷湾形态特征和潮流强、波浪弱、泥沙淤积少的动力特性,指出过量的围海造地威胁天然良港的永续利用。文中从港口的历史发展阐明香港港口的发展模式和方向。根据货运量持续增长尤其是集装箱运输快速增长的发展现状、面临的隐优和挑战、未来运输量增长的预测,讨论了香港港口可持续发展的新港址,提出屯门龙珠岛-青山电厂煤码头,赤Lie角新机场以东的大屿山岛北岸两处深水岸段作为新发  相似文献   
59.
Bridging organizations facilitate a range of governance processes, including cooperation and social learning, and are theorized to be a key component of robust governance systems. In this article, we use node removal simulations to test structural hypotheses of robustness in a regional water governance network in Central America. We investigate the response of network measures supporting core governance processes to the targeted removal of bridging organizations and other actors, which we compare to random and centrality-based simulations. The results indicate removing bridging organizations has a greater impact on the network than any other type of actor, suggesting bridging organizations are critical to the robustness of the governance system. Furthermore, network structures supporting cooperation may be less robust than structures facilitating social learning. We conclude with policy implications of the research findings as they relate to the exit problem in governance systems with a large presence of international development actors.  相似文献   
60.
After decades of pressure from vulnerable developing countries, the Warsaw International Mechanism on Loss and Damage (the WIM) was established at the nineteenth Conference of the Parties (COP 19) in 2013 to address costly damages from climate change. However, little progress has been made towards establishing a mechanism to fund loss and damage. The WIM's Executive Committee issued its first two-year workplan the following year at COP 20 which offered, among other things, a range of approaches to financing loss and damage programmes, which we review here. We provide brief overviews of each mechanism proposed by the WIM ExCom, describe their current applications, their statuses under the United Nations Framework Convention on Climate Change (UNFCCC), some of their advantages and disadvantages, and their current or potential application to loss and damage. We find that several of these mechanisms may be useful in supporting loss and damage programmes, but identify some key gaps. First, most of the mechanisms identified by the WIM ExCom are insurance schemes subsidized with voluntary contributions, which may not be adequate or reliable over time. Second, none were devised to apply to slow-onset events, or to non-economic losses and damages. That is, if harms are inflicted on parts of a society or its ecosystems that have no price, or if they occur gradually, they would probably not be covered by these mechanisms. Finally, the lack of a dedicated and adequate flow of finance to address the real loss and damage being experienced by vulnerable nations will require the use of innovative financial tools beyond those mentioned in the WIM ExCom workplan.

Key policy insights

  • Despite a full article of the 2015 Paris Agreement devoted to loss and damage, there is little international agreement on the scope of loss and damage programmes, and especially how they would be funded and by whom.

  • Most of the loss and damage funding mechanisms identified by the WIM ExCom are insurance schemes subsidized with voluntary contributions, which may burden the most vulnerable countries and may not be reliable over time.

  • None of the mechanisms were devised to apply to slow-onset events, or to non-economic losses and damages.

  相似文献   
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