摘要：In the context of global climate change and urbanization,urban flooding is an important type of natural disaster that affects urban development,especially in China,which is experiencing rapid *** the past 10 years,urban flooding events have caused huge disaster losses in Chinese *** has resulted in significant negative effects on the urban infrastructure,socioeconomic systems,and urban residents,thus causing widespread *** have confirmed the change in extreme rainstorms is due to the changing environments in many cities *** studies on the impact of these rainstorms with different characteristics for urban flooding is valuable for coping with unfavorable *** addition,numerical simulations provide an economical and viable means to perform these *** paper presents a numerical model of Xiamen Island in *** were conducted for 12 design rainstorm events with different return periods,rain patterns,and *** results indicate that,in the case of an equal rainfall amount,the rainfall intensity is the key factor that affects the inundated area,depth,and ***,the rainfall intensity is not the only determining factor;the rainfall pattern also affects the *** regard to the rainfall pattern,a higher rainfall peak coefficient usually leads to severe urban inundation and *** a result,the lag time would be shorter,which may further exacerbate the impact of urban flood *** results of this study provide insights into managing flood risks,developing urban flood prevention strategies,and designing flood prevention measures.

摘要：在日趋复杂的营销环境和日益迭代的图书出版模式驱动下,图书营销要完成传递图书信息、提升销售、维系读者关系的目标,已经无法完全通过人力实现,势必需要借助数字化工具。本文结合对国内外出版机构营销中的数字化工具的梳理,分析了数字化营销工具如何赋能图书营销的运营、提升营销效率。通过对数字化营销工具发展和应用的探究,有助于帮助我们更好地审视和理解图书营销中的技术基因,探寻当下复杂营销环境及技术背景下的图书营销破题之道。

摘要：以实例为背景,为保障特种车辆通行,提出了在原桥上架设装配式公路钢桥的临时加固危桥方案。设计了钢桥和进出口的具体结构形式,采用数值模拟方法对不同结构形式钢桥的承载力和刚度进行计算和对比分析,计算结果和通车实况均验证了方案的可行性和合理性。