共搜索到110条信息，每页显示10条信息，共11页。用时：0小时0分0秒316毫秒
......
J. Cent. South Univ. (2018) 25: 2654-2663 DOI: https://doi.org/10.1007/s11771-018-3943-0 Adaptive neural network based sliding mode altitude control for a quadrotor UAV Hadi RAZMI Department... that the controller design for these quadrotors is considered the challenging issue of the day. In this work, an adaptive sliding mode controller based on neural network is proposed to control the altitude......
; 文章编号:1672-7207(2014)11-4012-06 Altitude coefficient considering CO and smoke emission in high altitude highway tunnels YAN Tao1, 2, WANG Mingnian1, GUO Chun1... of Civil Engineering, Southwest Jiaotong University, Emei 614202, China) Abstract: To provide a feasible method for more accurate calculation of the ventilation, the calculation formula of altitude......
decrease with the increase of the altitude. But the air quantity in the mines and the air quantity supplied by the fan remain constant in spite of the change of the altitude.As the altitude increases.... Thus the selection procedure of the fan is simplified. It isn’t necessary to carry out complicated altitude correction in the ventilation design. Both the fan and the motor can be selected with normal......
(varying water temperature) and altitude (varying gas density). The results show that there is a measurable but relatively small effect of gas density on bubble size. The D32 is revealed to increase...; frother; bubble size; viscosity; altitude......
......
; 文章编号:1672-7207(2014)01-0237-07 Altitude effect of blasting vibration velocity in rock slopes JIANG Nan, ZHOU Chuanbo, PING Wen, XU Xing, LU Shiwei (Faculty of Engineering...° slope were established by applying the proved model and parameters. The impact of altitude effect on PPV attenuation was studied by numerical simulation. The simulation results indicate that the PPVs......
高海拔地区封闭溶样-原子吸收法测定地质样品中的金马旻1,王玉功1,余志峰1(1.甘肃省兰州市国土资源部兰州矿产资源监督检测中心)摘 要:针对高海拔地区大气压低,水的沸点低,金的溶出率不高的情况,通过三角瓶敞口和聚乙烯塑料瓶封闭溶样进行地质金矿样品分解方法的对比表明,利用聚乙烯塑料瓶在水浴锅中封闭溶样,矿样中的金可分解完全.该方法经国家一级标准物质分析验证,结果与标准值相符.该方法精密度(RSD,n=5)为3.65%~4.83%,检出限为0.15μg/g,适用于高海拔地区野外现场批量样品分析.关键词......
......
......
