Owing to the weak observability of the azimuth misalignment angle, alignment accuracy and time are always the contradict......

To ensure success of precise navigation, it is necessary to carry out in-field calibration for the accelerometers in pla......

Background: Wearable monitors(WMs) are used to estimate the time spent in sedentary behaviors(SBs) and light-intensity p......

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......