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The mechanism of farmland marginalization in Chinese mountainous areas:Evidence from cost and return
[期刊论文] 作者:LI Shengfa,LI Xiubin,
来源:黑龙江科技学院学报 年份:2019
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者:LI Shengfa,LI Xiubin,
来源:黑龙江科技信息 年份:2017
本文通过对荣华二采区10...
[期刊论文] 作者:Wenjie Li,Shengfa Yang,Wei Yan,
来源:国际泥沙研究:英文版 年份:2019
The measurement of instantaneous sediment concentration remains a challenging task. In this study, a three-step procedure is proposed to estimate instantaneous...
[期刊论文] 作者:Wenjie Li,Shengfa Yang,Jiang H,
来源:国际泥沙研究:英文版 年份:2016
三座峡水库(TGR ) 正在受不了意外好沉积免职,到更好理解好沉积运输过程,领域大小在 Zhongxian 和 Fengjie 活动范围被进行。基于沉积散开,方程被建议用声学的 Doppler 速度计(...
Gravel excavation and geomorphic evolution of the mining affected river in the upstream reach of the
[期刊论文] 作者:Yi Xiao,Wenjie Li,Shengfa Yang,
来源:国际泥沙研究(英文版) 年份:2022
As economic development upstream in the Yangtze River basin has progressed in recent decades,the demand for sediment has rapidly increased and contributed to an expansion in sediment excavation that may affect the river\'s stability and nav......
[期刊论文] 作者:Wenjie Li,Shengfa Yang,Jiang Hu,Xuhui Fu,Peng Zhang,,
来源:International Journal of Sediment Research 年份:2016
The Three Gorges Reservoir(TGR) is suffering from unexpected fine sediment deposition,to better understand the fine sediment transport processes,field measureme...
[期刊论文] 作者:Wenjie Li,Shengfa Yang,Wei Yang,Yi Xiao,Xuhui Fu,Shuaishuai Zhang,
来源:城市道桥与防洪 年份:2019
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
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