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在多次参加城市地籍测量实践的基础上,文章对城镇地籍控制测量布设光电测距导线(网)时,导线的布设原则、最大长度;发展层次、密度、权的确定等若干技术问题进行了探讨。 相似文献
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“准地籍测量”是在已有的地形图上根据地籍台帐于实地标绘宗地界域线,划分街道、街坊、调查区及编号,调查宗地座落、地名、门牌号码、房屋结构及层数等;基于这种测量模式,其成果以传统的图、表展示已很难适应。实践运用MGE地理信息基础平台开发出的地籍信息管理系统,其准地籍测量约70%的宗地成果与实际确权一致,不失为一种快速、经济有效的地籍测量模式。 相似文献
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国外地籍测量发展现状与展望 总被引:1,自引:0,他引:1
论述了国外地籍测量发展现状与展望,特别是对世界地籍事业与技术最为发展的联邦德国进行了较详细地介绍,也一般地叙述了美国、日本、苏联以及波兰、捷克、民主德国等东欧国家的地籍测量发展状况,并提出了趋势分析。 相似文献
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RTK技术是GPS发展的最新技术 ,已经开始应用于测量的很多方面。主要论述了GPSRTK在地籍测量中的相关技术 ,并且将其与地籍测量中的其他技术进行了一些比较 ,提出了将GPSRTK与全站仪结合进行地籍测量的基本观点。 相似文献
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在漳州地籍测绘工作中,先使用徕卡TCR-2全站仪采集数据,并依次转换为可供清华山维数字化地籍测量软件使用的数据格式,并利用EPSW98对所测的数字图形进行编辑,达到地物标注准确,然后使用EPSCM2000地籍处理系统建立地籍数据库,实现对该地籍测量数据库的检索及报表输出. 相似文献
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2011年7月,湖南省地籍管理工作会议在株洲举行。会议指出:当前和今后一个时期,既是地籍工作实现量积累的转折期,更是实现提升的关键期,地籍管理工作将处于由国土资源基础性工作向核心工作转变、由传统地籍向现代地籍转变的起步时期。这反映了地籍工作在国土资源管理中的新定位。 相似文献
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Rod Gerber 《GeoJournal》1990,20(1):15-23
Geography in Australia has a heritage that is strongly British, but more recently has been influenced from other parts of
the world, such as North America and New Zealand. Its popularity has fluctuated and it is now under threat as a separate subject
in the compulsory years of schooling. In higher education, geography has retrieved lost ground to be a popular area of study,
but not a research area in the current national priorities. Geography plays a focal role in the general education of Australians.
It is a medium for education involving the education of people, about, in, and for the society and environment in which they
live. Through education, geography will enable people to explore their life-roles as learners, social beings, recreators,
producers, consumers and citizens. It will develop in people distinctive knowledge, thinking processes, attitudes and values,
and encourage participation in social and environmental actions. Teachers in secondary and higher education have differing
and distinctive roles. Being a geographer in Australia does have benefits including: working in an identifiable area of knowledge
maintaining a bridge across the physical and social sciences; the promotion of inquiry approaches and as a focus for the various
adjectival educations that have emerged. These are tempered by challenges such as: threats from emerging disciplines, current
national research priorities and the movement to social science education. Therefore, promotion of geography in Australia
needs to be much more forceful than it has until now. The work of groups such as the Institute of Australian Geographers and
the Australian Geography Teachers' Association needs to be co-ordinated more closely to develop a strong lobby for geography
in Australian education. 相似文献
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Owain Jones 《Geoforum》2008,39(4):1600-1612
This paper draws out linkages between non-representational theory (NRT) and pragmatism. In doing so it sets NRT in a much wider, historical anti-representational movement. This should add momentum to its progress, and open up the considerable pragmatist and neo-pragmatist heritage as a resource for dealing with questions about methods, politics and ethics that NRT raises. Firstly I outline pragmatism and NRT to ground the discussion. Secondly the convergences between pragmatism, poststructuralism and the later work of Wittgenstein are considered. After that I go through a series of working principles which can underpin what is being termed anti-representational theory. These include; the primacy of life and action, pluralism, materiality/spatiality/temporality/relationality, anti-essentialism, creativity, collectivity, fallibilism, and disorder in method. I conclude by considering anti-representational knowledge production through radical incrementalism underpinned by witness and narrative. 相似文献
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这里基于某铁路隧道仰拱400MHz天线探地雷达的实际采集数据,采用Radan7软件处理方法所检测的缺陷结果,与施工单位及相关质量控制单位所组织的破检验证完全相符。通过对检测缺陷展开全面分析与解释,为隧道缺陷检测提供了依据和方法,将其应用于该工区后续隧道施工和隧道缺陷的检测处理与解释,具有重要的现实指导意义。 相似文献
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Leslie W. Hepple 《Geoforum》2008,39(4):1530-1541
Geography has had only limited interchange with the American philosophical tradition of pragmatism. This paper claims that a closer engagement with pragmatism has much to offer to geography, not least in providing an arena within which very different types of geographical inquiry - qualitative and quantitative, human and physical - may find some common ground for useful conversation and debate. However, this will only be fully achieved if geography embarks on a threefold engagement with pragmatism: (1) studies that develop and deploy specific pragmatist ideas and concepts within particular geographical research; (2) studies that attempt to relate geographical research to the wider arena of the pragmatic tradition; (3) historical examination of early links between pragmatism, social science and geography. The history and contemporary revival of pragmatism is described, together with its impacts on social theory and social science. The existing literature on geographical engagement with pragmatism is then examined, and it is argued that there is a much broader relevance within both human and physical geography, not linked to particular styles of research. The question of the history of earlier influences of pragmatism on American geography is then raised, and some linkages charted. The philosopher Hilary Putnam has used the term ‘pragmatist enlightenment’ to describe what he sees as the promise of pragmatism, and the paper concludes by suggesting that this also promises an exciting and fruitful engagement for geography. 相似文献
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侯遵泽 《物探化探计算技术》2007,29(5):460-464
根据数字水印的基本原理,运用小波分析方法将伪随机序列嵌入到数字图像中,并可以通过检测判定水印的存在与否,进而鉴别图像的版权真伪。在水印检测时,可以不必使用原始图像作比对来实现盲检测。该算法具有良好的隐蔽性和稳健性,从表面上无法感知水印的存在,更不可能伪造,因此提高了图像防止伪造的能力。 相似文献
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Despite limited research on access to advice services, it has long been assumed that access is related to geographic proximity [e.g. Blacksell, M., 1990. Social Justice and access to legal services: a geographic perspective. Geoforum 21 (4), 489–502]. The current study uses data from the English and Welsh Civil and Social Justice Survey, a large-scale nationally representative survey of respondents’ experience of and response to civil and social justice problems [Pleasence, P., 2006. Causes of Action: Civil Law and Social Justice, second ed. TSO, Norwich], to examine the impact of proximity to mainstream advice services on awareness and utilisation of services. In general, proximity of advice services had a relatively modest impact on both awareness and advice seeking. However, proximity did impact upon mode of contact and there was some evidence of difference in strategy (particularly more inaction) for isolated individuals without use of motorised transport. The suitability of different modes of advice provision for particular demographic groups are discussed, as well as implications for service delivery. 相似文献
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Geoff Kelly 《Geoforum》2007,38(2):326-338
The development of renewable energy sources is of prime interest to many countries seeking to pursue greenhouse gas emission reduction obligations. The increased use of renewables offers the possibility of not only contributing to emission reduction, but at the same time improving energy supply diversity and security, and developing employment and business in related supply industries. Two main mechanisms are in common use, one a quota (quantity) instrument often associated with tradable certificates, and the other a prescribed pricing mechanism. This paper considers the renewable energy development strategies of three countries (the UK, Australia, and New Zealand) all using a variant of the quota/certificate approach as the central instrument in their programs. The regulatory frameworks defining the application of the certificate systems differ notably, and the likely differing outcomes suggest that these regulatory settings may be at least as important as the selection of the basic policy instrument, in determining the overall success of programs of this nature. 相似文献
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Geography and computational social science 总被引:1,自引:0,他引:1
Paul M. Torrens 《GeoJournal》2010,75(2):133-148
The emergence of computational social science has had a transformative influence on the geographical sciences, integrating
diverse themes of scholarship and allying it with the pursuit of grand challenges in the physical, natural, and life sciences.
Geography has benefitted from many of these developments and has, in turn, catalyzed significant advances and innovation in
computational social science. In this paper, I explore the relationship between geography, computing, and the social sciences
by examining the evolution of some central themes in the computational social sciences: complexity, informatics, modeling
and simulation, information visualization, cyberspace, socio-technical systems, and semantic computing. 相似文献