Sustained data recording system based on disk array

Most sustained data recording systems in many real-time fields are based on tape equipments. We have developed an innovative sustained data recording system based on disk array which consists of Array Controller Module (ACM), String Controller Module (SCM) and Main Controller Module (MCM). This system has a better performance and higher reliability than the traditional tape recorder and can be used conveniently in many areas of data recording, storing, playback, and remote backup. This novel recording system has been used in radar data recorder for spacecraft orbit tracking and satellite remote sensing data recording successfully.     

数控车削加工仿真系统结构研究

根据实际加工情况提出了一种虚拟NC车削加工的仿真系统的设计及实现原理。在Visual C++平台上利用OpenGL技术建立虚拟加工机床数字化模型,用C++语言实现物理仿真相关的各个数学模型的建立,进行虚拟环境下数控车削加工的几何仿真及物理仿真,实现产品的虚拟车削制造。     

INITIALIZATION METHODS FOR GROUP TRACKING

ＩＮＩＴＩＡＬＩＺＡＴＩＯＮＭＥＴＨＯＤＳＦＯＲＧＲＯＵＰＴＲＡＣＫＩＮＧＹａｎｇＣｈｅｕｇｙａｎｇ；ＱｕＪｉａｎｍｉｎｇ；ＭａｏＳｈｉｙｉ（ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＡｅｒｏｎａｕｔｉｃｓａｎｄＡｓｔｒｏｎａｕｔｉｃｓ，Ｂｅｉｊｎｇ，Ｃ...     

飞机导管标志研究与改进

分析了飞机各管路系统中导管标带识别、涂色识别和印章识别传统方法的不足，提出了采用激光刻制导管图号标记的新方法，阐明其基本原理和方法，并与传统方法作了比较分析。激光刻制方法使设计人员不用再在图样上注明导管的标志和辅助标志，减轻了设计的工作量，提高了工作效率，缩短了导管制造周期；同时减轻了飞机的重量，改善飞机性能；标记清晰、美观易认，有利于飞机的检查和维修。     

航天产品工艺定型阶段工艺文件的编制与审查

从编制《工艺定型标准化要求》、审定有关工艺定型文件和编写《工艺定型标准化审查报告》等方面浅述航天产品工艺定型阶段应做好的标准化文件的编制与审查,并对其工作内容作了介绍。     

CBERS-1卫星IRMSS数据在城市绿地系统规划的应用

文章以CBERS -1卫星长沙幅IRMSS数据作为基础资料 ,利用PCI遥感图像处理软件对数据进行了预处理和应用实验。实验证明CBERS -1卫星的IRMSS数据图像信息丰富 ,可解译程度较高 ,能满足大中城市中等比例尺城市绿地系统规划遥感调查的要求     

民航机场建立呼叫中心的作用及实施对策

论文介绍了呼叫中心的技术原理，在分析民诱机场商务活动的现状的基础上，阐述了呼叫中心的特点及其在机场经营业务中的作用，提出了民航机场呼叫中心的模型，最后论述了民航机场实施呼叫中心的对策。     

The influence of dose, dose-rate and particle fragmentation on cataract induction by energetic iron ions.

Because activities in space necessarily involve chronic exposure to a heterogeneous charged particle radiation field it is important to assess the influence of dose-rate and the possible modulating role of heavy particle fragmentation on biological systems. Using the well-studied cataract model, mice were exposed to plateau 600 MeV/amu 56Fe ions either as acute or fractionated exposures at total doses of 5 - 504 cGy. Additional groups of mice received 20, 360 and 504 cGy behind 50 mm of polyethylene, which simulates body shielding. The reference radiation consisted of 60Co gamma radiation. The animals were examined by slit lamp biomicroscopy over their three year life spans. In accordance with our previous observations with heavy particles, the cataractogenic potential of the 600 MeV/amu 56Fe ions was greater than for low-LET radiation and increased with decreasing dose relative to gamma-rays. Fractionation of a given dose of 56Fe ions did not reduce the cataractogenicity of the radiation compared to the acute regimen. Fragmentation of the beam in the polyethylene did not alter the cataractotoxicity of the ions, either when administered singly or in fractions.     

论贾谊的教育思想

贾谊是我国古代比较系统地提出教育思想的人之一。他的教学内容以儒家礼教为中心，以道德教育为目标，从而建构了他的教育思想的基本框架。他首倡胎教，他总结的一些经验和理论与现代的胎教思想不谋而合。他强调环境对教育的重大影响，认为良好的环境有利于提高品德，增长学识。在教与学这个矛盾中，他强调教师的积极主导作用，并明确指出了教师的职责和任务。     

美国MTS公司应用软件在测试上的应用

介绍了用美国ＭＴＳ公司的平面应变断裂韬度测试软件，对ＴＣ４合金进行ＫＩＣ测试的过程及结果。