共查询到20条相似文献，搜索用时 31 毫秒
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《地球空间信息科学学报》2006,9(2):102-102
Contributions are welcomed on one of the following subjects or in related areas:GIS;geodynamic;physical geo-surveying;GPS;geo-surveying;engineering surveying;RS;photogrammmetry;mappingapparatus;cartology;graphics. Paper submitted in the electronic text on… 相似文献
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《地球空间信息科学学报》2003,(4)
Contributions are welcomed on one of the following subjects or in related areas: GIS Geodynamic Physical geo-surveying GPS Geo-surveying Engineering surveying RS Photogrammmetry Mapping apparatus Cartology GraphicsPaper submitted in the electronic text on a diskette should be sent along with two printed copies. The main text should be preceded by the abstract of no more than 300 words,followed by key words. Full references should be listed in the order of the citations in the text under the 相似文献
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《地球空间信息科学学报》2007,10(2):90-90
Contributions are welcomed on one of the following subjects or in related areas:·GIS ·Geodynamic ·Physical 相似文献
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《地球空间信息科学学报》2007,10(1):3-3
Contributions are welcomed on one of the following subjects or in related areas: ·GIS ·Geodynamic ·Physical geo-surveying ·GPS ·Geo-surveying ·Engineering surveying ·RS ·Photogrammmetry ·Mapping apparatus ·Cartology ·Graphics Paper submitted sh 相似文献
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《地球空间信息科学学报》2006,9(4):243-243
Contributions are welcomed on one of thefollowing subjects or in related areas :·GIS·Geodynamic·Physical geo-surveying·GPS·Geo-surveying·Engineering surveying·RS·Photogrammmetry·Mapping apparatus·Cartology·GraphicsPaper submitted should be sent 相似文献
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Commuters’ non-linear response to time distances 总被引：2，自引：0，他引：2
Established analyses of labour market commuting are based on random choice models and gravity type models. In these models generalised transport costs are formulated as exponential or log-linear distance dependent functions. This paper presents empirical observations, which imply that time distances influence the commuting behaviour in a non-linear way, such that the time sensitivity is much lower for very short and long distances, whereas intermediate distances display a high time sensitivity. This is explained in a model that is parameterised and estimated. The results are important for understanding and predicting commuter behaviour. It also helps to delineate space, as in classical traditions, into local, intra-regional and extra-regional space. 相似文献
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From Physical Space to Visual Image Space 总被引：1，自引：0，他引：1
YE Zetian LIN Hui LIU Xianlin YE Zetian Ph.D Chinese Academy of Surveying Mapping Beitaiping Road Haidian District Beijing China. 《地球空间信息科学学报》2003,6(2):42-47
1 IntroductionVirtualreality (VR)isaformofhuman computerinterface(HCI) [1 ] .Andnowitisamajorbranchofcomputing ,cover ingabroadspectrumofhumaninteractionwithcomputers .Itrangesfromtheinteractionwithrealenvironmentstothatwithsyntheticallygeneratedworlds[2 ] .Usually ,intheinterac tiveprocess ,oneofthemainoutputsofcomputerisgraphicsonthescreen .Thegraphicsarethemaininformationsourcereceivedbyhumanfromthecomputers .Tohuman ,visionisthemostimportantorgantogaininformationfromthenaturalworld .S… 相似文献
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GQL： Extending XQuery to Query GML Documents 总被引：10，自引：2，他引：8
GUAN Jihong ZHU Fubao ZHOU Jiaogen NIU Liping 《地球空间信息科学学报》2006,9(2):118-126
IntroductionThe geography markup language (GML)[1]is anXML encoding in compliance with ISO 19118 forthe transport and storage of geographic informationmodel according to the conceptual modeling frame-work used in the ISO 19100 series and includingboth the… 相似文献
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ZHANG Shiyu ZHONG Min 《地球空间信息科学学报》2007,10(4):260-264
Using the model data for surface mass changes of the atmosphere, ocean, soil moisture and snow depth, the vertical crustal displacements of 25 ficual stations in China were calculated according to the ... 相似文献
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Isard’s contributions to spatial interaction modeling 总被引：2，自引：0，他引：2
This short review, surveys Isards role in promoting what has become known as spatial interaction modeling. Some contextual information on the milieu from which his work emerged is given, together with a selected number of works that are judged to have been influenced (directly and indirectly) by his work. It is suggested that this burgeoning field owes a lot to the foundations laid in the gravity model chapter of Methods. The review is supplemented by a rather extensive bibliography of additional works that are indicative of the breadth of the impact of this field. 相似文献
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This special issue brings together papers that were presented in the 9th International Symposium on Physical Measurements and Signatures in Remote Sensing（ISPMSRS05）, Beijing,2005. 相似文献
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Input/output (I/O) of geospatial raster data often becomes the bottleneck of parallel geospatial processing due to the large data size and diverse formats of raster data. The open‐source Geospatial Data Abstraction Library (GDAL), which has been widely used to access diverse formats of geospatial raster data, has been applied recently to parallel geospatial raster processing. This article first explores the efficiency and feasibility of parallel raster I/O using GDAL under three common ways of domain decomposition: row‐wise, column‐wise, and block‐wise. Experimental results show that parallel raster I/O using GDAL under column‐wise or block‐wise domain decomposition is highly inefficient and cannot achieve correct output, although GDAL performs well under row‐wise domain decomposition. The reasons for this problem with GDAL are then analyzed and a two‐phase I/O strategy is proposed, designed to overcome this problem. A data redistribution module based on the proposed I/O strategy is implemented for GDAL using a message‐passing‐interface (MPI) programming model. Experimental results show that the data redistribution module is effective. 相似文献