高校公选课程“生活化学实验”思政教学设计与实践

基于“课程思政”的教学理念,针对高校公共选修课程的特点,以“生活化学实验”为例进行了课程思政教学设计,探索思政教育融入该课程的教学过程、教学实践以及评价方式。融入创新教育和绿色教育的理念,激发学生的学习兴趣和爱国热情,把思想政治工作和思想价值引领贯穿于教育教学全过程,真正实现“教书”和“育人”相统一,为学生的全面发展做出贡献。

空空导弹过失速翻转后向发射方法

为缩短近距格斗导弹越肩发射的响应时间,实现空空导弹在近距格斗时对于后方目标的快速打击,提出了一种利用导弹在大/超大攻角下的静不稳定性,并辅助喷流直接力控制、末段主动舵偏控制的空空导弹快速后向发射方法。为研究所提出的新发射方法中预置舵偏、喷流直接力、末段主动舵偏控制策略的影响,发展了基于动态嵌套网格的耦合主动舵偏控制策略的高精度计算流体力学/飞行动力学数值模拟方法。数值模拟结果表明,所提出的方法可以在1.53 s内完成导弹的快速重新定向并在翻转末段保持姿态稳定可控。新方法可以将越肩发射的重新定向时间缩短至传统方法的约1/10。

Outage Probability Analysis in Downlink SWIPT-Assisted Cooperative NOMA Systems

We study a downlink non-orthogonal multiple access (NOMA) system, in which a base station (BS) serves a near user and a far user on the same frequency band simultaneously. Due to physical obstacles or heavy shadowing, there is no direct link from the BS to the far user and the near user acts as a cooperative relay for the far user by adopting the simultaneous wireless information and power transfer (SWIPT) technique. In particular, we first derive the outage probabilities of the SWIPT-assisted cooperative NOMA system by considering both full-duplex and half-duplex relaying modes. Then, we analyze the approximated closed-form expression of exact outage probability by applying the Gaussian-Chebyshev quadrature formulas. Simulation results validate the correctness of the theoretical analysis and demonstrate the advantages of the SWIPT-assisted cooperative NOMA system over orthogonal multiple access(OMA)benchmarks.