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Detection of Breaking Waves Using X-Band Pulse Radar in the Nearshore Region
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作者 Y.C.Lin C.C.Chang +2 位作者 M.C.Lee h.c.chan J.M.Leu 《China Ocean Engineering》 SCIE EI CSCD 2013年第4期549-556,共8页
An X-band pulsed Doppler microwave radar has been used to determine the characteristics of breaking waves. Field experiments were conducted at the Shuang-Si estuary in the north of Taiwan in the winter of 2005. Analys... An X-band pulsed Doppler microwave radar has been used to determine the characteristics of breaking waves. Field experiments were conducted at the Shuang-Si estuary in the north of Taiwan in the winter of 2005. Analyses on maxima radar cross section and Doppler frequency shift are done to characterize wave breaking zones. Based on observations of breaking waves, the wave breaking zones are shown to be located at water depths of 1.8 to 2.2 m in the experimental site. In general, the results indicate that a radar system has the potential to delineate the spatial variation of breaking waves clearly and that this is sufficient to achieve a measurement operation for near-shore air-sea interaction events. 展开更多
关键词 RADAR Doppler effect wave breaking coastal zone
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受扭穿孔筒体结构弹塑性分析
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作者 J.S.Kuang Y.K.Cheung h.c.chan 《广州建筑》 1996年第3期40-50,共11页
在钢筋混凝土高层建筑物中,有电梯,楼梯和服务性管道的简体结构,是全部或部分抵抗由风和地震引起的横向荷载的最经济的结构之一。在许多情况中,筒体墙结构为矩形平面,基本上是由各楼层楼板或连梁相连结的薄壁敞开式剪力墙构成,组成一个... 在钢筋混凝土高层建筑物中,有电梯,楼梯和服务性管道的简体结构,是全部或部分抵抗由风和地震引起的横向荷载的最经济的结构之一。在许多情况中,筒体墙结构为矩形平面,基本上是由各楼层楼板或连梁相连结的薄壁敞开式剪力墙构成,组成一个穿孔筒体结构。由于结构的不对称,风力的偏心矩以及质心、刚性心在有地震荷载时不重合。 展开更多
关键词 钢筋混凝土 筒体结构 弹性 塑性分析
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