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991.
Behnam Atazadeh Mohsen Kalantari Abbas Rajabifard Serene Ho Tom Champion 《International journal of geographical information science》2017,31(3):499-522
Currently, 2D-based analogue building subdivision plans are used to represent the spatial extent of private, public and communal property ownership rights. These plans are recognized as posing a range of challenges in terms of communicating the spatial complexity of ownership spaces within multi-storey buildings. In response to these challenges, three-dimensional (3D) digital data environments are being investigated as a potential approach for managing complex, vertically stratified ownership arrangements. The argument presented in this article is that Building Information Modelling (BIM) can be adopted for 3D digital management of data related to complex ownership spaces. BIM provides a common and 3D digital data sharing space, underpinning a reliable basis for facilitating collaboration and decision-making over the lifecycle of buildings. However, ownership attributes and the spatial structure of ownership arrangements inside buildings are yet to be accommodated within the BIM data environment. In this article, we present a range of required data elements for managing complex ownership spaces, which have been elicited by investigating current practices pertaining to subdivision of ownership spaces within multi-storey buildings in Melbourne, Australia. An open data model in the BIM domain is extended with these data elements and a prototype model for a real multi-storey building is implemented to demonstrate the viability of the extended data model for 3D digital management and visualization of data related to complex ownership arrangements. 相似文献
992.
Integrating multi-source big data to infer building functions 总被引:1,自引:0,他引:1
Ning Niu He Jin Xinyue Ye Yu Liu Xia Li 《International journal of geographical information science》2017,31(9):1871-1890
Information about the functions of urban buildings is helpful not only for developing a better understanding of how cities work, but also for establishing a basis for policy makers to evaluate and improve the effectiveness of urban planning. Despite these advantages, however, and perhaps simply due to a lack of available data, few academic studies to date have succeeded in integrating multi-source ‘big data’ to examine urban land use at the building level. Responding to this deficiency, this study integrated multi-source big data (WeChat users’ real-time location records, taxi GPS trajectories data, Points of Interest (POI) data, and building footprint data from high-resolution Quickbird images), and applied the proposed density-based method to infer the functions of urban buildings in Tianhe District, Guangzhou, China. The results of the study conformed to an overall detection rate of 72.22%. When results were verified against ground-truth investigation data, the accuracy rate remained above 65%. Two important conclusions can be drawn from our analysis: 1.The use of WeChat data delivers better inference results than those obtained using taxi data when used to identify residential buildings, offices, and urban villages. Conversely, shopping centers, hotels, and hospitals, were more easily identified using taxi data. 2. The use of integrated multi-source big data is more effective than single-source big data in revealing the relation between human dynamics and urban complexes at the building scale. 相似文献
993.
Five wooden trackways in raised bogs located along a precipitation gradient in Northwest Europe (Ireland, England, The Netherlands and Germany), and all dated toc. 2600 cal.BC, show differences in building method related to variable hydrological conditions in the local bog surfaces. Differences in the bearing strength of the highly humified hummock-hollow surfaces can be largely attributed to differences in the climatically related water content of the peat. Water balance studies, based on current climatic data and using the concept of system-linked discharge, can explain the hydrological differences between the ombrotrophic bogs established by archaeological excavations of the wooden trackways. Active peat growth at the time of construction and building methods used indicate mean annual precipitation values similar to present reflecting the modern rainfall gradient.This publication is the fourth paper in a series of papers presented at the session on Past Climatic Change and the Development of Peatlands at the ASLO and SWS Meetings in Edmonton, Canada, May 30–June 3, 1993. Dr P. Kuhry and Dr S. C. Zoltai are serving as Guest Editors. 相似文献
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996.
基于2017年广州市单体建筑数据,以建筑高度和建筑间距2个指标,确定主城区基本的建筑组合,利用热点分析辨识更高尺度上的建筑组合,在此基础上分析广州建筑组合的空间分布及其影响因素。主要结论有:1)建筑组合有9种基本类型,4 272斑块数量与面积在占比上具有很强的同步性。2)百米尺度斑块构成了主城区建筑组合的基本单元,并以混合用地类型为主,由高层建筑组成的类型用地功能指示作用明显。3)主城区基本类型圈层分布特点突出,各类型圈层分异规律存在差异。4)地价是城市建筑高度、人口密度由中心向外递减的核心制约因子,是城市建筑组合分异的宏观背景因素,并能在平原地形上很好地以圈层形式呈现出来。在百米尺度上,绿地、珠江与主干道在微观层面对建筑组合类型、高度和密度产生影响,使得主城区建筑组合复杂化、多样化。 相似文献
997.
There is less than a decade left to accomplish the goal of ending global poverty by 2030. This paper investigates global poverty dynamics and finds a shift in the world's poverty gravity center from South Asia to Africa in the period 1990–2015. Sub-Saharan Africa has become the main battlefield for poverty reduction in the world. Global poverty reduction has been accompanied by political instability and local conflicts, economic marginalization, rural decline, and natural hazards as well as climate change which are jointly impacting the least developed areas and making the world's poverty reduction vulnerable to external shocks. The "STAR" scheme, including maintaining political stability, promoting targeted poverty alleviation, implementing regular assessments of poverty reduction initiatives, and revitalizing rural and poverty-stricken areas, is proposed with specific measures to enhance the resilience capacity of poverty alleviation in the world. 相似文献
998.
Giuseppe Montana Luciana Randazzo Ilaria A. Oddo Mariano Valenza 《Environmental Geology》2008,56(2):367-380
Chemical, mineralogical and isotopic composition (34S/32S) analyses were carried out on “black crusts” developed on the old buildings of Palermo (Sicily) with the aim to distinguish
between natural and anthropogenic sulphur sources. Furthermore individual samples of total suspended particulate (TSP) were
collected and analysed in order to estimate the influence of air pollution on the decay process of calcareous stones in a
typical southern Mediterranean coastal environment. SEM/EDS analysis, X-ray diffractometry, IR spectroscopy and liquid chromatography
led to the compositional characterization of “black crusts” and airborne particulate matter in the city. Sulphur isotopic
compositions of gypsum-bearing crusts showed a prevailing contribution of anthropogenic sources (vehicle exhaust and other
combustion processes). Natural sulphur and/or sulphate sources (biogenic and/or sea-spray) were shown to play a secondary
role. These data can be considered a starting point for the determination of the rate of growth of “black crusts” in a coastal
Mediterranean urban environment like Palermo. In the future, they might be useful to local authorities for planning more efficient
maintenance action in order to slow as much as possible the rate of decay of the monumental heritage of the city. 相似文献
999.
城市基础比例尺地形图更新与建库 总被引:2,自引:1,他引:1
分析了城市基础比例尺地形图更新机制和在实践中的应用,探讨了空间地理信息数据建库的标准和数据库更新关键技术,提出了对生产部门建设"数字城市"过程应建立基础数据更新机制的建议. 相似文献
1000.