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......

基于马脊梁矿5127巷掘进期间应力区顶板蠕动变形严重,导致巷道顶板锚杆(索)支护失效、断裂、变形等现象,根据巷道原支护现状分析了......

Peristalsis of Carreau-Yasuda fluid is investigated. Analysis is carried out in the presence of velocity slip and convec......