Shift control method for the local time at descendi ngnode based on sun-synchronous orbit satellite

This article analyzes the shift factors of the descending node local time for sun-synchronous satellites and proposes a shift control method to keep the local time shift within an allowance range. It is found that the satellite orbit design and the orbit injection deviation are the causes for the initial shift velocity, whereas the atmospheric drag and the sun gravitational perturbation produce the shift acceleration. To deal with these shift factors, a shift control method is put forward, through such methods as orbit variation design, orbit altitude, and inclination keeping control. The simulation experiment and practical application have proved the effectiveness of this control method.

高职药剂学课程思政实践与探索

五年制高职课程教学在育人方面发挥着主渠道作用,以高职药剂学专业课程为例,介绍专业课开展课程思政的意义和总体设计,从建立课程思政资源库、注重融入方式的多样化和开展线上线下混合式教学方面探讨课程思政实践过程,并对课程思政教学成效给予评价。