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    Analysis of Floods in Xijiang River and Beijiang River Based on Copula Function by REN Chengjun

    Published 2023-01-01
    “…It is of great significance to analyze the flood situation of the Xijiang River and Beijiang River for peak shifting regulation of reservoirs in the basin and flood control and disaster reduction in the Pearl River Delta.Therefore,Gamma distribution and Von Mises distribution are used to fit the flood magnitude and occurrence time of annual maximum flood,respectively.The Copula function is used to construct a joint distribution of floods in Xijiang River and Beijiang River,and the possibility of floods in Xijiang River and Beijiang River is analyzed.The results show that the probability of simultaneous occurrence of major floods in Xijiang River and Beijiang River is extremely small.When Shijiao Station in Beijiang River experiences floods at a level of 5,10,20,50,100,and 200 a,respectively,the probability of occurrence of floods with the same frequency in Gaoyao Station Xijiang River is 0.345 0,0.200 3,0.108 5,0.046 6,0.023 7,and 0.012 0,respectively.The probability of floods in the two rivers is the highest in early June.As the flood magnitude increases,the risk of flood occurrence decreases.The probability of floods at a level of 5 a in the two rivers in early June is 1.32×10<sup>-3</sup>,and that of floods at a level of 200 a is only 1.17×10<sup>-6</sup>.…”
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    Cli-fi Young Adult et imaginaire urbain : (re)configurations génériques by Natacha Levet

    Published 2023-12-01
    “…Urban spaces express disaster imagination but may be some ground for game and initiation. …”
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    Trajectory tracking sliding mode control for vertical take-off and landing aircraft based on double loop and global Lipschitz stability. by Liang Du

    Published 2025-01-01
    “…Vertical Take-Off and Landing (VTOL) aircraft excel in their ability to maneuver in limited spaces, making them ideal for a variety of uses including urban air mobility, emergency response, and disaster surveillance. Their agility and quick deployment features are especially valuable for executing complex missions in challenging environments. …”
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    Side Trip Multipath Routing Protocol for Spatial Node Failure in Data-Gathering WSNs by Keisuke Fujita, Yumi Takaki, Chikara Ohta, Hisashi Tamaki

    Published 2016-04-01
    “…In severe disaster environments, data-gathering wireless sensor networks possibly suffer from spatial node failure due to external factors such as land slide and river overflow. …”
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