民用飞机产品研制保证等级分配原则研究

研制保证等级是民用飞机研制过程的关键技术。研究了民用飞机产品项目研制保证等级定义,解读并分析了SAE ARP 4754A、RTCA DO-178B以及DO-254各标准有关项目研制保证等级的分配要求差异及产生差异的原因。为解决各标准要求差异导致分配结果不一致的问题,在研究研制保证的目的、解决方法以及相关政策要求的基础上,提出关于民用飞机产品项目研制保证等级若干通用分配原则建议,用于指导项目研制保证等级分配的实际应用。并且,通过应用案例表明该分配原则的可行性。     

Building capacity in the basic space sciences in Southern Africa: Experiences and prospects

The basic space sciences and their supporting technologies underpin the ability of a country to utilise space applications programmes for development. By whatever measure is employed, Africa is under-represented in the international space science community. This paper reviews lessons learnt over the past 8 years with regard to sustainable capacity building in the region. At present there are a number of role-players in the space arena engaged in various capacity-building initiatives. We advocate that the emphasis of these initiatives should shift from fairly isolated capacity-building activities to comprehensive regional capacity-building programmes developed jointly by the different role-players. In order to develop such coordinated programmes, the establishment of a capacity-building forum involving the space community, the development sector and the developing countries in a region, is proposed.     

高校工会工作推动社会主义文化发展

研究在社会主义文化建设中如何充分发挥高校工会的组织作用。以满足职工文化诉求、职工文化权益、职工文化活动需要为出发点和落脚点,大力推进社会主义核心价值体系建设,维护广大教职工精神文化权利,加强先进校园文化职工文化建设,开展形式多样的文化活动。高校工会为推动社会主义文化发展做出积极贡献。     

坚持以人为本理念 改进高校思想政治教育

高校思想政治教育坚持以人为本的理念,旨在强调高校思想政治教育要以促进大学生个体的全面发展为根本,充分尊重思想政治教育对象的差异性,为每个大学生的健康成长提供支持、关心和帮助。高校思想政治教育工作应从促进思想政治教育自身和大学生的全面发展以及增强思想政治教育的实效性三个方面出发,以此开拓高校思想政治教育的新路径。     

金刚石工具的性能、应用研究与进展

研究和综述了3种类型金刚石工具的性能与应用,为金刚石工具的合理选用提供了参考。对镀覆金刚石工具的应用与进展、金刚石颗粒均匀有序在工具中排列的应用与进展作了研究表明：金刚石工具有广阔的发展空间与应用前景;并对金刚石工具研究方向作了简要分析。     

对欠发达地区基础英语教育发展的对策研究

欠发达地区基础英语教育落后于发达地区。对此找出了欠发达地区基础英语教育不均衡发展的原因,并提出了可以通过加强教师队伍的自身建设,抓好课堂教学,注重教学的趣味性,处理好语言与文化的关系,改变基础英语教育评价制度,加大政府财政投入等努力,来促进欠发达地区基础英语教育的均衡发展。     

Where does the stone go when we drop it? Development of French schoolchildren’s knowledge of gravity

In this study, we explored children’s knowledge of gravity at different ages (5–6, 7–8, and 9–10 years), by asking the same question (“Where does a stone go when we drop it?”) in three different contexts (on Earth, in a spaceship orbiting the Earth, and on the Moon). We tested the influence of context and children’s age on both the answers and the justifications they provided. We expected that children of all ages would find it easier to make correct predictions in the Earth context than in the other two contexts. We were also interested in the kinds of justification children construct and how these justifications change during ontogenesis. Seventy-two French children were individually interviewed at their school. None of them had received any direct teaching about gravity. Results showed that children found it easier to predict the fall of the stone on Earth than its behaviour in the other two contexts, but that the younger children predicted the fall of the stone on the Moon more accurately than the older children. This unusual developmental effect only occurred for the Moon context. We also found that the categories of justifications changed with age, with a move away from intuitive considerations towards mechanistic ones.     

航天员出舱活动的发展阶段及启示

从1965年3月18日苏联航天员列昂诺夫首次出舱以来，航天员出舱活动已经有40多年的历史。这40年大体上可以分为两个阶段：1965至1980年为第一阶段，即试验阶段；1981至2010年为第二阶段，即成熟阶段；2010年以后出舱活动将继续发展和提高，并进入出舱活动发展的第三阶段，即提高阶段。文章对出舱活动发展的三个阶段进行了概述和分析研究。     

我国实施环境审计的理性思考

环境问题已成为人类所面临的全球性严峻挑战，在我国尤为突出。解决环境问题，实施可持续发展战略，是一个庞大而复杂的系统工程，环境审计作为综合性的经济监督手段，是其中必不可少的重要组成部分。但我国环境审计的理论研究和实践工作刚刚起步，尚处于探索阶段，探讨开展我国环境审计的策略，已成为亟待解决的一个课题。