磁暴期间中低纬电离层暴形态和物理机制分析

本文利用东亚地区１２个低纬电离层台站的测高仪观测数据，对１９７８年８月２７日发生的一次曲型磁暴期间电离层峰值高度和密度的变化进行了分析。采用滑动平均区分开电离层中不同时间尺度的扰动，分析了影响中低纬度电离层暴的几种扰动形态特征，并对其物理机制进行了讨论。结果表明：伴随磁暴急始的磁层压缩，电离层中表现出峰值密度增加和峰值高度下降；磁暴主相期间热层大气暴环流及其所引起的中性大气成分变化控制着电离层的大     

Current and future activities in education and public outreach at the Observatoire de Haute Provence

The Haute Provence Observatory has for primary mission the operation of telescopes, up to two meters in diameter, for the astrophysics community, and the measurements of various upper atmosphere parameters for the geophysics community. An education and outreach program has been developed with several reached: from school pupils to post-doctorate students, teachers, and the general public. In the recent years we put emphasis on the formation of teachers and on the renewal of the general public visit. Given the wide range of education and outreach activities we cover, we had to develop a relation network with individuals, amateurs, teachers and institutions, amplifying our efforts. For the future, we will try to make an optimal use of the resources available in the St Michel l’Observatoire area, taking steps to reach an agreement with the neighbouring “Centre d’Astronomie”, a structure devoted to education and public outreach belonging to the local authorities.     

Proposal for a United Nations Basic Space Technology Initiative

The United Nations Programme on Space Applications, implemented by the United Nations Office for Outer Space Affairs, promotes the benefits of space-based solutions for sustainable economic and social development. The Programme assists Member States of the United Nations to establish indigenous capacities for the use of space technology and its applications. In the past the Programme has primarily been focusing on the use of space applications and on basic space science activities. However, in recent years there has been a strong interest in a growing number of space-using countries to build space technology capacities, for example, the ability to develop and operate small satellites. In reaction to this development, the United Nations in cooperation with the International Academy of Astronautics has been organizing annual workshops on small satellites in the service of developing countries. Space technology related issues have also been addressed as part of various other activities of the Programme on Space Applications. Building on these experiences, the Office for Outer Space Affairs is now considering the launch of a new initiative, preliminarily titled the United Nations Basic Space Technology Initiative (UNBSTI), to promote basic space technology development. The initiative would be implemented in the framework of the Programme on Space Applications and its aim would be to help building sustainable capacities for basic space technology education and development, thereby advancing the operational use of space technology and its applications.     

职业技能大赛背景下的职校教师群体现状分析及应对策略

职校教师群体在相关技能大赛政策的导引下，逐渐分化为红花群体、绿叶群体、黄叶群体和落叶群体等四个基本群体。这四群体板结僵化，影响全校教师的专业发展。针对这种情况，职校当从组团辅导参赛、实施轮流参赛、开展基础项目竞赛、重视人文素养培养等几方面人手，为全校教师营造参加技能大赛的机会，推动每位教师的专业发展。     

高校扩招对农村学生发展影响的探讨——基于教育公平的视角

在人们对高等教育的期望值逐渐增大的背景下,高等教育公平问题受到了广泛关注。文章借助数据统计方法对高校扩招以来我国农村大学生在入学、就业等方面情况进行深入探讨,从教育公平的视角来看,农村大学生在高等教育起点和结果等方面与城市大学生之间依然存在教育不公平现象。为了充分发挥教育对社会公平的促进作用,建议通过四项措施逐渐提高高等教育公平。     

Active learning for advanced students: The Center for Integrated Space Weather Modeling graduate summer school

In recent years there has been considerable research in undergraduate physics education regarding the application to classroom instruction of techniques that are generally referred to as active engagement techniques. However, in very few cases have such pedagogical strategies been applied to graduate-level instruction. In this paper we describe an innovative application of a variety of active engagement techniques at the graduate summer school conducted by the Center for Integrated Space Weather Modeling, a Science and Technology Center funded by the National Science Foundation. We believe that the model presented here can serve as a valuable guide to other group contemplating space physics education at all levels, as well as graduate education generally.     

GEO移动通信卫星合成多波束天线仿真分析

针对地球静止轨道（GEO）移动通信卫星星上多波束天线波束成形技术,研究了合成多波束对地覆盖、点波束天线增益以及波束间干扰抑制技术。利用仿真分析软件进行多波束天线的波束成形仿真分析,优化了天线系统的设计参数,改善了波束间的隔离度指标,提高了系统通信性能和局部地区的信道容量,完成了地球静止轨道移动通信卫星系统合成多波束天线的设计。     

遥测参数实时判决系统的研制

导弹遥测数据实时判决系统充分利用遥测参数数据,通过字符滚动、时间历程曲线等形式实现实时显示,并判决弹上遥测参数的物理量信息,从而能够实时监视弹上设备的工作情况,为靶场对导弹试验的控制提供可靠的决策依据。     

用中国传统文化建构当代大学生思想政治教育体系

中国传统化是中华民族在生息繁衍中形成的理论化和非理论化的，并转而影响整个社会的，具有稳定的共同精神、心理状态、思维方式和价值取向等精神成果的浓缩；它对于建构当代大学生思想政治教育体系具有重要的指向价值。     

基于NURBS曲面的雷达散射截面物理光学算法研究

文章实现了一种使用物理光学（PO）计算雷达散射截面的算法。目标模型用非均匀有理B样条（NURBS）曲面建立，并使用等参数等弦长方法剖分为Ⅳ个四边形面元。在剖分面元上，使用Gordon方法将物理光学积分转化为闭合区域线积分。整个算法在保持计算精度的前提下有较高的计算速度。