陶瓷材料小裂纹的生长与聚合

对陶瓷材料小裂纹的生长与聚合规律进行了试验研究。结果表明由Ｖｉｋｅｒｓ压痕法引入的单个小裂纹的裂纹扩展速率（ｄａ／ｄｔ）随裂尖应力强度因子的增大呈先降后升的Ｖ形特征。理论分析和数据处理均表明这种特征是由压痕法引入的残余应力场的影响所致。试验结果还表明多个小裂纹的生长与聚合规律也与残余应力场密切相关。文中提出的叠加残余应力场模型很好地解释了上述试验结果     

SMESE (SMall Explorer for Solar Eruptions): A microsatellite mission with combined solar payload

The SMESE (SMall Explorer for Solar Eruptions) mission is a microsatellite proposed by France and China. The payload of SMESE consists of three packages: LYOT (a Lyman α imager and a Lyman α coronagraph), DESIR (an Infra-red Telescope working at 35–80 and 100–250 μm), and HEBS (a High Energy Burst Spectrometer working in X- and gamma-rays).     

小角度仪器检定0级平板平面度的误差研究

通过误差分析与计算，论证了0.01mm／m合象水平仪不能满足0级平板平面度检定精度要求，采用0．005mm／m自准直仪或电子水平仪可获得满意的检定精度结果。由此得出正确选择检定工具，对于保证0级平板检定质量有着重要意义。     

Small scale structures in the solar corona

The observational characteristics of the small scale magnetic structures are summarized. The temperature structure and temporal variability of the emission from coronal bright points, that pervade the source region of the solar wind in coronal holes and the quiet sun, and from active regions are shown to be remarkably similar. Particular emphasis is given to observations, potentially feasible with SOHO, that could resolve some of the outstanding issues regarding the role of the small scale magnetic structures in the energy balance and properties of the solar wind.     

用小角度测量仪校准合象水平仪的不确定度问题探讨

介绍了微分筒式小角度测量仪的构造及测量原理 ,对使用该小角度测量仪校准合象水平仪时的测量不确定度进行了分析计算 ,指出使用微分筒法校准合象水平仪准确度高且操作方便。     

小卫星的重力梯度控制方法

本文首先论述重力梯度卫星三种控制方式（重力梯度，重力梯度＋飞轮，重力梯度＋磁控＋飞轮），其次研究重力杆和天平动阻尼球结构设计与参数分析。最后建立重力梯度卫星数学模型和进行仿真实验。对小卫星来说，重力梯度既能满足性能要求又是廉价的一种姿态控制方法。     

The enigma of small satellites for earth observation

Small satellites have captured a continuously increasing share of the market in the fields of science, technology and recently also in the telecommunications and Earth observation areas. User requirements and market opportunities for space based satellite systems for Earth observation products have grown substantially in the past decade. Criteria for the utilization of different classes of satellite systems (small and large) and analogies to developments in other areas, e.g. the telecommunications field are discussed. The end to end character of service and product oriented systems as key criteria for market success in the scientific, applications and commercial areas is underlined. Recent developments in the global change, the Earth observation applications and commercial sectors are reviewed and compared. Opportunities for small satellites in the field are related to technology advancements, cost reduction options, and progress in the state of the art in system design.     

小卫星的推进系统

小卫星推进系统可以完成多种功能：变轨、轨道保持、姿态控制、重新定位以及离轨等。先进化学推进系统和低功耗电推进系统是现代小卫星的理想选择。近期可供小卫星应用的推进系统包括高压Ｉｒ／Ｒｅ双组元推力器、电弧推力器、霍尔推力器、脉冲等离子体推力器。业已证明，这些推进系统可以在目前计划中的许多小卫星上发挥其用武之地。本文综述了这一技术领域的最新进展。     

CMOS相机在微小卫星上的应用

文章主要介绍了CMOS探测器件相对于CCD器件的优点 ,讨论了CMOS焦平面的的设计方案 ,最后给出了CMOS相机的实验室成像结果和外景成像结果。     

单片系统在星载计算机上的应用

小卫星的设计目标之一是低成本、轻质量以及研制周期短，使用商用现货的元器件和开发工具可以更好的支持这一思想。可编程单片系统是其中的一项关键技术。这种单片系统方案可以降低小卫星电子系统(比如数管，通信和控制系统)的体积、复杂度和成本。该文阐述了单片系统在航天器上的应用，并以一星载计算机的单片系统作为设计举证，包括一个微处理器软核、其他的外围接口设备软核及所采用的目标芯片，并对以微处理器软核为核心的片上系统如何实现进行描述，同时提供了通过片上总线集成外围接口设备软核的方法。