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Yuchun Li, Tianlai Fan, Aihua Wang, Jun Zeng, Yubiao Lv, Mingwang Zhang and Dajun Liu
The geochemical characteristics of a 2.1 m BBW25 core, collected from the Beibu Gulf, have been investigated in terms of the major and trace elements, organic matter, and CaCO3 and AMS 14C dating by XRF, ICP-OES, ICP-MS, and more. We have found through p...
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Dan Liu, Dajun Li, Meizhen Wang and Zhiming Wang
In recent years, because of highly developed LiDAR (Light Detection and Ranging) technologies, there has been increasing demand for 3D change detection in urban monitoring, urban model updating, and disaster assessment. In order to improve the effectiven...
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Ting Chen, Haiqing He, Dajun Li, Puyang An and Zhenyang Hui
The all-embracing inspection of geometry structures of revetments along urban rivers using the conventional field visual inspection is technically complex and time-consuming. In this study, an approach using dense point clouds derived from low-cost unman...
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Bo Liu, Xuechao Liu, Dajun Li, Yu Shi, Gabriela Fernandez and Yandong Wang
When using the traditional Douglas?Peucker (D?P) algorithm to simplify linear objects, it is easy to generate results containing self-intersecting errors, thus affecting the application of the D?P algorithm. To solve the problem of self-intersection, a n...
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