期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
非标准马蹄形隧洞水力计算探讨 被引量:1
1
作者 张家锐 陈熊 《人民长江》 北大核心 2020年第3期128-130,135,共4页
工程实际中,为优化马蹄形隧洞断面受力条件,常采用非标准型式的过水断面,但复杂的体型又会导致水力学计算非常困难。为解决这一工程难题,通过数学计算采用几何分割法和积分法推导出了两种非标准马蹄形断面任意水深对应的水力学要素解析... 工程实际中,为优化马蹄形隧洞断面受力条件,常采用非标准型式的过水断面,但复杂的体型又会导致水力学计算非常困难。为解决这一工程难题,通过数学计算采用几何分割法和积分法推导出了两种非标准马蹄形断面任意水深对应的水力学要素解析式,并利用Excel等计算软件方便快捷地求出精确解析解。依托滇中引水工程,将推导的公式应用于非标准马蹄形隧洞断面水力要素拟定中,结果准确可靠,可为类似工程的水力学计算提供参考。 展开更多
关键词 非标准马蹄形断面 水力计算 几何分割法 积分 滇中引水工程
在线阅读 下载PDF
Recognition algorithm for turn light of front vehicle
2
作者 李仪 蔡自兴 唐琎 《Journal of Central South University》 SCIE EI CAS 2012年第2期522-526,共5页
Intelligent vehicle needs the turn light information of front vehicles to make decisions in autonomous navigation. A recognition algorithm was designed to get information of turn light. Approximated center segmentatio... Intelligent vehicle needs the turn light information of front vehicles to make decisions in autonomous navigation. A recognition algorithm was designed to get information of turn light. Approximated center segmentation method was designed to divide the front vehicle image into two parts by using geometry information. The number of remained pixels of vehicle image which was filtered by the morphologic feaatres was got by adaptive threshold method, and it was applied to recognizing the lights flashing. The experimental results show that the algorithm can not only distinguish the two turn lights of vehicle but also recognize the information of them. The algorithm is quiet effective, robust and satisfactory in real-time performance. 展开更多
关键词 intelligent vehicle turn light recognition adaptive threshold front vehicle
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部