QUADTREE

作品数：31被引量：77H指数：6
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相关作者：丁锐孟小峰胡玉龙付仲良彭瑞更多>>
相关机构：中国人民大学华南理工大学浙江省地理信息中心武汉大学更多>>
相关期刊：《High Technology Letters》《Green Energy and Intelligent Transportation》《Progress in Natural Science:Materials International》《Journal of Southeast University(English Edition)》更多>>
相关基金：国家自然科学基金国家高技术研究发展计划国家重点基础研究发展计划更多>>
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Hybrid Finite Element Method Based on Polygon-Quadtree Meshes for Heat Transfer and Thermal Elastic Analysis
《Acta Mechanica Solida Sinica》2023年第5期745-753,共9页Lihui Wang Rui Zhang Ran Guo Jiangbo Tao 
supported by the National Natural Science Foundation of China(Grant Nos.12062007 and 12072135).
A steady-state thermal hybrid element model is proposed to calculate particle-reinforced composites divided by an improved quadtree mesh.The functional of hybrid flux finite element method(HF-FEM)is constructed using ...
关键词：Hybridflux method Hybrid thermal stress method Improved quadtree grid STEADY-STATE 
A non-uniform quadtree map building method including dead-end semantics extraction
《Green Energy and Intelligent Transportation》2023年第2期17-28,共12页Xiuzhong Hu Guangming Xiong Junyi Ma Gege Cui Quanfu Yu Shihao Li Zijie Zhou 
To reduce the complexity of large-scene high-resolution maps while using the dead-end information distributed in the unmanned vehicle driving environment,we propose a novel non-uniform quadtree map-building method inc...
关键词：Unmanned vehicles MAPPING Path planning QUADTREE DEAD-END 
Kinematic inventory of rock glaciers in the Nyainqentanglha Range using the MT-InSAR method
《International Journal of Digital Earth》2023年第1期3923-3948,共26页Xuefei Zhang Min Feng Jinhao Xu Dezhao Yan Jing Wang Xiaoqing Zhou Tao Li Xiang Zhang 
funded by the National Natural Science Foundation of China[grant number 4217011817];State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Youth Innovation Key Program[grant number TPESER-QNCX2022ZD-04].
Rock glaciers are typical periglacial landforms with tongue or lobate morphological shapes and characterized by the distinct front,lateral margins,and often by ridge-and-furrow surface topography textures as well as k...
关键词：Rock glacier MT-InSAR quadtree segmentation Nyaingentanglha KINEMATICS 
Parking detection method using quadtree decomposition analysis被引量：1
《Journal of Traffic and Transportation Engineering(English Edition)》2022年第4期645-653,共9页Khaled Shaaban Houweida Tounsi 
Searching for available parking spaces can be a painful experience for drivers due to driving around until finding a vacant space.This study proposes a new method to automatically detect available parking spaces.The p...
关键词：Traffic engineering Parking detection Smart cities Outdoor parking Image processing Image detection 
An optimized hexagonal quadtree encoding and operation scheme for icosahedral hexagonal discrete global grid systems
《International Journal of Digital Earth》2022年第1期975-1000,共26页Long Zhao Guoqing Li Xiaochuang Yao Yue Ma Qianqian Cao 
supported by the Strategic Priority Research Program of Chinese Academy of Sciences [grant number XDA19020201].
Although research on the discrete global grid systems (DGGSs) has become an essential issue in the era of big earth data,there is still a gap between the efficiency of current encoding and operation schemes for hexago...
关键词：Discrete global grid systems HEXAGON quadtree encoding 
Improving Linked-Lists Using Tree Search Algorithms for Neighbor Finding in Variable-Resolution Smoothed Particle Hydrodynamics被引量：1
《Communications in Computational Physics》2019年第6期57-86,共30页Shahab Khorasanizade J.M.M.Sousa 
supported by Fundacao para a Ciencia e a Tecnologia(FCT),through IDMEC,under LAETA,project UID/EMS/50022/2013;The financial support via FCT grant SFRH/BSAB/114588/2016 is also acknowledged.
Improving linked-lists for neighbor finding with the use of tree search algorithms is proposed here,aiming to cope with highly non-uniform resolution simulations employing a meshless method.The new procedure,coined Qu...
关键词：Smoothed particle hydrodynamics linked-list QUADTREE neighbor finding variable resolution 
Numerical simulation of wind-driven circulation and pollutant transport in Taihu Lake based on a quadtree grid被引量：6
《Water Science and Engineering》2019年第2期108-114,共7页Xiao-dong Liu Ling-qi Li Peng Wang Zu-lin Hua Li Gu Yuan-yuan Zhou Lu-ying Chen 
supported by the National Natural Science Foundation of China(Grants No.51739002 and 51479064);the World-Class Universities(Disciplines)and Characteristic Development Guidance Funds for the Central Universities;the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions(Grant No.PPZY2015A051)
In this study,a two-dimensional flow-pollutant coupled model was developed based on a quadtree grid.This model was established to allow the accurate simulation of wind-driven flow in a large-scale shallow lake with ir...
关键词：Numerical simulation WIND-DRIVEN CIRCULATION POLLUTANT transport QUADTREE GRID Shallow-flow hydrodynamics Taihu Lake 
基于移动终端高效显示海量坐标对象的方法探讨
《通信与信息技术》2019年第3期54-56,共3页郑昊 淡嘉 
为了能在计算能力有限的移动设备上高效显示海量坐标对象,采用Quadtree作为数据结构,建立针对坐标对象集合的空间索引,并通过一个用于限制坐标对象规模的滑动可视区域-"视口",来从Quadtree中快速查找出需要动态显示的对象。通过对实现...
关键词：QUADTREE 空间索引 时间复杂度 移动终端 区域坐标搜索 
Terrain Rendering LOD Algorithm Based on Improved Restrictive Quadtree Segmentation and Variation Coefficient of Elevation被引量：2
《Journal of Beijing Institute of Technology》2018年第4期617-622,共6页Zhenwu Wang Xiaohua Lu 
Supported by the National Natural Science Foundation of China(61363075);the National High Technology Research and Development Program of China(863 Program)(2012AA12A308);the Yue Qi Young Scholars Program of China University of Mining&Technology,Beijing(800015Z1117)
Aiming to deal with the difficult issues of terrain data model simplification and crack disposal,the paper proposed an improved level of detail(LOD)terrain rendering algorithm,in which a variation coefficient of eleva...
关键词：terrain data model simplification crack disposal level of detail(LOD)terrain rendering algorithm variation coefficient of elevation node evaluation function restrictive quadtree segmentation 
An h-adaptive numerical manifold method for solid mechanics problems
《Science China(Technological Sciences)》2018年第6期923-933,共11页YU ChangYi LIU Feng XU Ying 
supported by the National Natural Science Foundation of China(Grant Nos.11602165&51479131);Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences(Grant No.Z015010);the Natural Science Fund of Tianjin City(Grant No.16JCQNJC07800)
The numerical manifold method(NMM) features its dual cover systems, namely the mathematical cover and physical cover,which provide a unified framework for mechanics problems involving continuum and discontinuum deform...
关键词：numerical manifold method （NMM） adaptive analysis quadtree meshes mean value coordinates cover refinement 
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