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1·Baed on the ionosonde data, we used an empirical method to derive the neutral meridional wind during tile storm.

采用一个半经验模式利用垂测数据计算了磁暴效应引起的有效热层子午向中性风。

2·Baed on the Robust tuning method of conventional PID controller, a new on-line PID self tuning method is put forward.

在常规pid控制器的控制参数的鲁棒整定法基础上，提出了一种新的PID在线整定改进方案。

3·In the next 5-8 year, part of Europe, Aia and the Middle Eat are projected to witne a hift in trend, a thee countrie will try to reduce the capability gap exitent with their land-baed C4ISTAR.

未来5-8年，欧亚和中东地区部分国家预计将转变这一趋势，因为这些国家将尽量减少光电设备与陆基C4ISTAR系统之间的能力差距。

4·Baed on widely using PBL teaching mode in medical education the author made some exploration on the establishment of the academic evaluation of PBL for the principle for students' achievements.

在医学教育中广泛应用PBL教学法的情况下，对建立适合PBL学业成绩评价应掌握的原则、常用方式作了一定的探讨与尝试。