If Quebec Goes . . . The ‘Exodus' Impact?     

Lucia Lo  Carlos Teixeira 《The Professional geographer》1998,50(4):481-498

In this paper, we explore migration aspects of the 1995 Quebec Sovereignty Referendum with data from a survey administered to non-francophones in Montreal two weeks prior to the Referendum. While the Quebec sovereignty issue has been around for some time and earlier exodus from the province, particularly among anglophones, is largely regarded as “forced” in some way, this study neither confirms the 1995 Sovereignty Referendum as a paramount factor in explaining outmigration from Quebec nor points to a real reluctance to leave Montreal. The decision to move is influenced by the interplay of a multitude of factors. The political influence is only an added factor to longstanding economic decline and cultural clash. Moreover, if there is any impulsion, the degree varies among different cultural and socioeconomic groups.  相似文献   

"Making Place": The "Pacific Solution" and Australian Emplacement in the Pacific and on Refugee Bodies     

Prem Kumar Rajaram 《Singapore journal of tropical geography》2003,24(3):290-306

In September 2001, Australia effected a "Pacific Solution" to its "refugee problem": the interception and transfer of "unauthorised boat arrivals" to processing centres in the Pacific Third World. These centres were agreed to by poor countries that were approached precisely because of their vulnerability and dependence upon Australia, in exchange for increases in aid. Australia thereby created a regional refugee problem and, in so doing, Australian seignorage also demands that the laws of those sovereign countries be placed in stasis so that people not convicted of a crime may be detained indefinitely. The Pacific region, in effect, came to be mapped in terms of its utility to Australia, both downplaying and concealing complex economic, social and political issues. This essay studies the Pacific Solution as a means of Australian "emplacement" in the Pacific and on refugee identity/bodies. Both refugee identity and the Pacific Third World are assessed in terms of their utility in serving as sites for Australian emplacement, whereby and wherein the borders of Australia are reinforced, to the detriment of extant "local" emplacements.  相似文献   

江苏海域文蛤周年性腺发育的初步研究     

范可章  姚国兴  陈爱华  杨家新  许璞 《海洋科学》2006,30(7):27-32

江苏文蛤(Meretrixmeretrix)属于较为独立的地理种群。为提高江苏文蛤苗种生产能力,于2003年12月到2004年11月在江苏沿海海域的东凌、新港、吕四、大丰等采样点,定期取样,计算文蛤各采样时期的丰满度,并及时测量水温,对性腺进行直接和显微切片观察,以研究其性腺发育特点。观察表明,其发育可分为5个期:形成期、生长期、成熟期、排放期及耗尽期。形成期在3~4月,水温10.5~16.5℃;生长期在4~5月,水温18~20.5℃;成熟期在5~6月,水温24~25℃;放散期在6~8月,水温24~32℃;耗尽期在9月以后,直到11月份,水温从24℃左右下降到10℃左右。水温在10℃以下时,文蛤的生长发育处于停滞状态,从11月持续到第二年的3月初。江苏文蛤性腺发育的时间比辽宁文蛤早1个月左右,比广西文蛤迟1个月左右。  相似文献   

Isobathymetric Line Simplification with Conflict Removal Based on a B-spline Snake Model     

Eric Guilbert  Hui Lin 《Marine Geodesy》2007,30(1):169-195

This paper introduces a new method for the smoothing of isobathymetric lines for marine chart construction. Specific constraints have to be observed as the chart must be legible and safe for navigation. The method, based on a snake model, respects these constraints of legibility and safety which impose a direction for curve deformation. Conflicts such as self-intersections are also considered. These two points are the main contributions of the paper as current methods cannot deal with such constraints. Several case studies are presented and results obtained on real data are discussed.  相似文献   

AUV长基线系统海上应用中若干问题分析     

冀大雄  陈孝桢  李一平  刘健  封锡盛 《海洋工程》2007,25(4):92-95

对"CR-02"6 000 m自治水下机器人长基线声学定位系统海上试验中的若干问题从理论上进行分析和计算,并提出了解决方案。海上试验证明了方法的有效性和可靠性,为进一步的试验及应用积累工程经验。  相似文献   

国际海洋划界技术发展与探讨   总被引：3，自引：0，他引：3  

魏合龙  林峰  何书锋  沈文周 《海洋地质前沿》2003,19(6):1-4

国际海洋划界的地理环境复杂，涉及学科多，既有法律问题也有技术方法问题。适用于海域划界的国际法原则有多种，在这些海域划界原则指手下涉及了多种因素，并形成了多种划界方法，这样必将使划界工作变得异常复杂。GIS、决策支持系统等技术的应用将在国际海洋划界的管理方面提供强有力的支持，并成为重要的决策工具。  相似文献   

小型海洋调查浮标设计的若干问题     

张敬祥 《热带海洋学报》1992,(2)

文章概述了国外浮标在恶劣海况下发生的恶性事故,从而提出确保浮标安全可靠的重要性和在设计中必须解决的若干问题:合理的选型;正确的计算;可靠的结构和安全的锚锭系统。文章最后指出小型海洋调查浮标有广阔发展的前景。  相似文献   

建立中国自由贸易区的政治地理学理论基础及模式选择   总被引：8，自引：2，他引：6  

孟广文 《地理科学》2015,(1)

依据分级主权管理和政策空间分异理论分析中国分级主权管理和政策空间分异的现状,阐述中国建立自由贸易区的理论基础,提出中国建立自由贸易区的结构和区位模式,并分析论证天津自由贸易区和自由港城的规划与建设模式和路径。从理论层面,中国本来实施的就是分级主权管理政策,而事实上也存在分级主权管理的各类型特区,因此,无论是从理论上还是在实践上,建立"境内关外"型自由贸易区只不过是中国分级主权管理政策在经济领域内的新发展和新探索。中国贸易型自由经济区应包括保税区、边境贸易区、自由贸易区、自由港、自由市或自由城。应以"珠三角"、"长三角"和"环渤海地区"为重点,逐渐向边境口岸和内部节点地区扩展,分阶段有选择的建立自由贸易区,以促进区域经济中心和世界城市的形成与发展。环渤海区域选择天津保税港区为基础建立自由贸易区具有综合竞争优势。  相似文献   

物联网技术发展综述及海洋信息化对策研究     

李四海  张峰 《海洋通报》2012,31(3):354-359

物联网是在互联网的基础上,利用信息技术实现物体自动识别和信息共享的网络系统。介绍了物联网发展的背景、体系结构及物联网的主要关键技术,分析了物联网的主要特征和内涵;在此基础上,介绍了有关国家物联网的发展战略和现状,并结合我国海洋领域的具体情况,提出了物联网技术影响下,我国海洋信息化发展的应对策略和技术路径。  相似文献   

海权论与和谐海洋大战略观   总被引：1，自引：1，他引：0  

蔡一鸣 《世界地理研究》2008,17(4):41-48

21世纪是海洋世纪。在当今和平的时代里,国家与国家之间的竞争,主要表现在能源等资源的竞争．人与自然的和谐发展以及科学技术的进步,如何用和平的手段去获取国家海洋的控制权益．提高国家的综合竞争能力,兵不血刃而达到目的,是我国重要的海洋战略。论文结合马汉的海权论,海洋新世纪的发展趋势,论述了构建当代我国和谐海洋大战略观及对海洋的控制权益。  相似文献