大型水陆两栖飞机特殊任务模式对总体设计的挑战

面向森林灭火和水上救援任务设计的大型水陆两栖飞机，由于其特殊的任务模式，给设计工作带来了许多全新的挑战。首先，分析了国内森林灭火和水上救援的需求，并介绍了对应的任务模式。然后，总结了在型号研制过程中不同于常规飞机的特殊设计和相应的解决方法，具体包括：以国内供应商为主体的构型管理体系的建立、气水动一体化设计、全新的起落架布局设计、任务系统集成和效能评估、驾驶舱集成设计、设备布置和腐蚀防护设计。最后，提出了在适航审定和集成应用方面仍需重点关注的4个研究方向。     

Development of a ground-based space micro-algae photo-bioreactor

The purpose of the research is to develop a photo-bioreactor which may produce algae protein and oxygen for future astronauts in comparatively long-term exploration, and remove carbon dioxide in a controlled ecological life support system. Based on technical parameters and performance requirements, the project planning, design drafting, and manufacture were conducted. Finally, a demonstration test for producing algae was done. Its productivity for micro-algae and performance of the photo-bioreactor were evaluated. The facility has nine subsystems, including the reactor, the illuminating unit, the carbon dioxide (CO₂) production unit and oxygen (O₂) generation unit, etc. The demonstration results showed that the facility worked well, and the parameters, such as energy consumption, volume, and productivity for algae, met with the design requirement. The density of algae in the photo-bioreactor increased from 0.174 g (dry weight) L⁻¹ to 4.064 g (dry weight) L⁻¹ after 7 days growth. The principle of providing CO₂ in the photo-bioreactor for algae and removing O₂ from the culture medium was suitable for the demand of space conditions. The facility has reasonable technical indices, and smooth and dependable performances.     

军用飞机推行综合保障工程的研究

阐述了ILS的涵义及ILS在军用飞机形成战斗力中的重要作用,结合军用飞机实施ILS的现状,对大力推行军用飞机ILS的实施提出了几点建议。     

综合质量管理系统的一种方法(英文)

ＩＳＯ９０００认证已被制造业视为一种有效的竞争优势。在香港，ＩＳＯ９０００认证已获得广泛采纳，并已伸延至服务行业，藉以提高公司形象。不过，不少取得认证的公司因抱怨原因而将文件工作、非直接生产员工及过多资源转投在非核心业务方面。本文旨在推荐一套既能专注于主要业务，又能灵活地结合其他管理标准，如ＩＳＯ９０００、ＩＳＯ１４０００及将来ＩＳＯ１８０００要求的“综合管理系统”。本文最后阐述了如何实施建议的综合管理系统，以达到理想的业务表现。     

一种新型的充放电及分流一体化空间电源控制技术

为满足卫星轻量化需求,本文对一体化的空间电源调节技术进行了研究。采用一种新型的集蓄电池充放电与并联分流一体化功率拓扑结构和功率调节控制策略,可实现使用单一电路完成太阳阵分流、电池充电控制、电池放电调节三种功能。介绍了新型拓扑的工作模式、功率调节控制策略及其实现方法,通过Pspice软件进行了电路建模与原理仿真,结果证明此方法有效。     

直升机航空电子综合仿真系统研究

综合仿真系统是直升机航空电子系统研制过程中必不可少的支持设施，本文简要介绍了其基本原理、系统结构和主要软件模块。     

综合火力/飞行控制系统火飞耦合器设计技术研究

为提高武器的攻击精度、延长可攻击时间，本文建议了IFFC系统中的空-空射击作战模态，研究了火飞耦合器的基本结构及其参数优化设计方法，提出了一种以随机射线优化方法和IFFC系统数字仿真相结合的离线寻优的参数设计策略。在寻找过程中采用了以减小脱靶量为优化准则的目标函数。数字仿真表明，优化后的IF-FC系统的可攻击时间延长了30％，攻击精度提高了约50％。本文所提出的设计准则与方法对其它非空-空射击模态的IFFC系统仍有普遍意义。     

基于遗传算法的高速飞行器模糊飞控一体化

以高超声速飞行器通用模型的俯仰通道为控制对象,针对其6自由度非线性模型设计了一体化飞控系统.飞控系统由1个模糊控制器和2个PD控制器组成.基于遗传算法实现了模糊控制规则和PD反馈参数的自动优化,无需先验知识和训练数据.仿真表明,该方法可以同时满足飞行控制系统鲁棒性和优化过程收敛性的要求,特别是鲁棒性优于同样采用模糊控制的经典双回路飞控系统.     

INS/SMNS组合导航信息融合算法

为了解决INS/SMNS(Inertial Navigation System /Scene Matching Navigation System)组合导航系统信息融合时涉及到的时间对准、多速率滤波、不等间隔以及量测滞后等问题,根据INS/SMNS组合导航主要应用于末制导段以及Kalman滤波与观测值的关系,提出了采用外推法进行时间对准、变周期离散化进行不等间隔多速率滤波、使用计算机软件消除量测滞后的解决方案.对比分析了常规Kalman滤波、消除量测滞后Kalman滤波以及方案的滤波精度.仿真结果表明设计的方案具有较高的滤波精度.     

Personality,social support and affective states during simulated microgravity in healthy women

This study investigated the time-course of stress and recovery states and their relations to social support and personality traits in healthy women during a long-term head-down tilt bed rest. Personality, social support and affective states were assessed in 16 women exposed to simulated microgravity for a 60-day duration involving three stages: a 20-day baseline control period (BDC), a 60-day head-down tilt bed rest (HDT) and a 20-day post-HDT ambulatory recovery period (R+). Participants were divided into two groups: an exercise (Exe, n = 8) and a control group (Ctl, n = 8). All the participants experienced significantly more stress during the HDT period. But exercise did not improve the impaired effects of simulated microgravity. The Exe group perceived more stress and less recovery than the Ctl group during the HDT period. Among the five major personality factors, only Neuroticism was related to both social and affective variables. Neuroticism was positively associated with stress and negatively associated with recovery and social support (S-SSQ). Practical implications in psychological countermeasures for better dealing with the key human factor in spaceflights are discussed.