基于产业支撑的社会主义新农村建设研究

建设社会主义新农村是我国现代化进程中全党工作的重中之重,是全面解决“三农问题”的切入点,是实行工业反哺农业、城市支持农村的落脚点。要实现这一宏伟的目标与历史重任,必须重视农业、农村和农民问题,完成三大战略转变：一是农业的产业化转变,二是农村社会向现代社会形态的转型,三是农民向产业工人及市民的转变。     

一种有效提高超大偏心率轨道初轨确定精度的新方法

针对某型号航天器的运行轨道偏心率大、轨控结束后可用于初轨确定的测轨数据少的特点,提出了一种能有效提高超大偏心率短弧段初轨确定精度的新方法。该新方法将轨道改进的思想融入初轨计算方法中,使之既适用于各种偏心率轨道的初轨计算,也适用于各种偏心率轨道的长弧段、多圈、多站数据的轨道改进;解决了传统初轨确定方法超大偏心率轨道短弧段初轨确定误差偏大的问题。通过任务实测数据的检验,新方法适用于各种偏心率轨道,并且超大偏心率轨道的初轨确定精度明显优于传统方法。     

航空发动机智能制造生产线构建技术研究

结合航空发动机制造生产线特点,研究了智能制造的特征及要素,设计了面向航空发动机的智能制造生产线架构,并阐述了实施内容、关键技术及实现方法,为智能制造技术在航空发动机制造企业以及装配制造业应用提供了重要参考.     

新型航天器太阳电池阵基板的质量控制

影响新型航天器太阳电池阵基板的质量因素较多,且很复杂。文章着重介绍了基板的质量控制内容,还对一些突出的质量问题作了简述。     

Effects of commercialisation in the European space sector

Space activities are evolving from publicly financed to commercial undertakings. In 2000, the 50% mark was reached in Europe and this figure shows a steadily increasing tendency. Reduced public funding and increased technical maturity in space technologies have been the major forces driving this commercialisation process. European industry has adapted itself to this new environment with a number of mergers over the last decade. Strategic alliances represent the second, current phase in this process in order to cope with the challenges of the global space sectors. Besides national space legislation, new regulatory frameworks, initiated by the European commission and the WTO, as well as an increasingly internationally oriented workforce will accelerate this commercialisation process.     

经济可持续增长与产业结构的税收政策关联性分析

经济可持续增长除资本、技术、资源、人才因素外,还与产业结构的布局密切相关。在阐述我国产业结构的现状、三次产业之间的比例不合理、三次产业内部结构不合理,及我国三次产业的税收政策后,调整三次产业结构,提出了促进经济可持续增长,完善三次产业的税收政策取向。     

战略导弹测试发射控制系统的发展和导弹模拟器的应用

战略导弹武器系统采用了快速机动使用方式,控制系统实现了全数控方案,地面各种勤务工作的设备做到了智能化.对地面测试发射控制系统的需求发生了变化,测控系统采用了"弹测"和"地测"相结合,以地面计算机控制为主的体制,采用了分布式计算机网络结构方案,自动化测试系统在"三化"方面也有很大进展.测控系统功能扩大了,系统更为复杂,测控软件在配套设备中的份量越来越大,越显重要,测控系统自检尤其是测控软件的测试尤显突出,文中提出采用导弹模拟器解决测控系统自检和测控软件测试问题,还可作为部队模拟训练装置,提出导弹模拟器的组成和设计方法以及使用问题.     

State of art on energy management strategy for hybrid-powered unmanned aerial vehicle

New energy sources such as solar energy and hydrogen energy have been applied to the Unmanned Aerial Vehicle(UAV), which could be formed as the hybrid power sources due to the requirement of miniaturization, lightweight, and environmental protection issue for UAV. Hybrid electrical propulsion technology has been used in UAV and it further enforces this trend for the evolution to the Hybrid-Powered System(HPS). In order to realize long endurance flight mission and improve the energy efficiency of UAV, many researching works are focused on the Energy Management Strategy(EMS) of the HPS with digital simulation, ground demonstration platforms and a few flight tests for the UAV in recent years. energy management strategy, in which off-line or on-line control algorithms acted as the core part, could optimize dynamic electrical power distribution further and directly affect the efficiency and fuel economy of hybrid-powered system onboard.In order to give the guideline for this emerging technology for UAV, this paper presents a review of the topic highlighting energy optimal management strategies of UAV. The characteristics of typical new energy sources applied in UAV are summarized firstly, and then the classification and analysis of the architecture for hybrid power systems in UAV are presented. In the context of new energy sources and configuration of energy system, a comprehensive comparison and analysis for the state of art of EMS are presented, and the various levels of complexity and accuracy of EMS are considered in terms of real time, computational burden and optimization performance based on the optimal control and operational modes of UAV. Finally, the tendency and challenges of energy management strategy applied to the UAV have been forecasted.     

民机风洞试验验证技术中的几点新发展

通过总结近年来与国内外风洞试验验证专业领域中的合作经验,提出了几点民机风洞试验验证技术中的新发展。它们有的已经广泛应用于工程实际,有的是在对外合作中刚刚获得的一些新经验,有的则是刚开始摸索并将要在后续的风洞试验验证中继续深入实施的措施等,一并提出,以期为后来者提供参考。     

新一代北斗试验卫星伪距质量初步评估

为验证北斗全球系统卫星新型导航信号体制、星间链路和高精度原子钟等关键技术,中国于2015年3月30日至2016年2月1日间发射了5颗新一代北斗试验卫星。试验卫星除了播发新的民用信号B1C和B2外,同时还播发B1I和B3I平稳过渡信号。试验卫星导航信号的伪距质量以及北斗现有工作卫星存在的与高度角相关伪距误差问题在新一代北斗卫星上是否得到解决是大家普遍关注的问题,将基于北斗试验卫星实测数据对此进行初步评估与验证。