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| 1 | An efficient flood dynamic visualization approach based on 3D printing and augmented reality显示文摘Flood visualization is an effective and intuitive tool for representing flood information from abstract spatiotemporal data.With the growing demand for flood disaster visualizations and mitigation,augmented flood visualizations that support decision makers’perspectives are needed,which can be enhanced by emerging augmented reality(AR)and 3D printing technologies.This paper proposes an innovative flood AR visualization method based on a 3D-printed terrain model and investigates essential techniques,such as the suitable size calculation of the terrain models,the adaptive processing of flood data,and hybridizing virtual flood and terrain models.A prototype experimental system(PES)based on the proposed method and a comparison experimental system(CES)based on a virtual terrain are developed to conduct comparative experiments,which combine the system performance and questionnaire method to evaluate the efficiency and usability of the proposed method.The statistical results indicate that the method is useful for assisting participants in understanding the flood hazard and providing a more intuitive and realistic visual experience compared with that of the traditional AR flood visualization method.The frame rate is stable at 60 frames per second(FPS),which means that the proposed method is more efficient than the traditional AR flood visualization method. | Guoyong Zhang Jianhua Gong Yi Li Jun Sun Bingli Xu Dong Zhang Jieping Zhou Ling Guo Shen Shen Bingxiao Yin | 2020 | International Journal of Digital Earth2020，13，11： | 4 |
| 2 | Architecture of HLA Based Distributed Virtual Geographic Environment显示文摘Integrating the theory of distributed virtual geographic environment (DVGE) and high level architecture(HLA), the architecture of DVGE based on HLA is designed. The data flow and the object models of the architecture are also discussed. The architecture basically meets the need of DVGE in real-time communication, distribution, collaboration, reusing and interoperation, expansion, and standard. | XU Bingli LIN Hui GONG Jianhua | 2006 | Geo-Spatial Information Science2006，9，2： | 2 |
| 3 | Tunnel vision optimization method for VR flood scenes based on Gaussian blur显示文摘The visualization of flood disasters in virtual reality(VR)scenes is useful for the representation and sharing of disaster knowledge and can effectively improve users’cognitive efficiency in comprehending disaster information.However,the existing VR methods of visualizing flood disaster scenes have some shortcomings,such as low rendering efficiency and poor user experience.In this paper,a tunnel vision optimization method for VR flood scenes based on Gaussian blur is proposed.The key techniques are studied,such as region of interest(ROI)calculation and tunnel vision optimization considering the characteristics of the human visual system.A prototype system has been developed and used to carry out an experimental case analysis.The experimental results show that the number of triangles drawn in a flood VR scene is reduced by approximately 30%–40%using this method and that the average frame rate is stable at approximately 90 frames per second(fps),significantly improving the efficiency of scene rendering and reducing motion sickness. | Lin Fu Jun Zhu Weilian Li Qing Zhu Bingli Xu Yakun Xie Yunhao Zhang Ya Hu Jingtao Lu Pei Dang Jigang You | 2021 | International Journal of Digital Earth2021，14，7： | 1 |
| 4 | Virtual Geographic Environments (VGEs): A New Generation of Geographic Analysis Tool显示文摘 | Hui Lin Min Chen Guonian Lu Qing Zhu Jiahua Gong Xiong You Yongning Wen Bingli Xu Mingyuan Hu | 2013 | Earth-Science Reviews2013，，： | 1 |
| 5 | Preparing amphiphilic acidic zeolite via chemically coating alkylamine显示文摘Amphiphilic ODA/HY and ODA/ Hβ zeolites have been prepared via chemically coating octadecylamine (ODA) with alcohol as solvent. IR and titrimetric results indicate that ODA molecules are chemisorbed on the acidic sites in zeolite, showing the higher thermostability and alcohol-resistance. These am- phiphilic zeolites contain both the hydrophobic and hydrophilic groups, orient at the liquid-liquid phase-boundary in both cyclohexane/water and water/carbon tetrachloride systems, and exhibit the potential to be used in the phase-boundary catalysis and adsorption. No by-products with strong acid- ity are formed in this approach, therefore, it can be used to prepare amphiphilic acidic zeolites with low Si/Al ratio. | SUN RuiQin CHUN Yuant MA BingLi LI Ping DONG JiaLu XU QinHua | 2007 | Chinese Science Bulletin2007，52，17： | 1 |
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