HS－2000型双反射镜补偿式高速摄影系统研究

介绍ＨＳ─２０００双反射镜补偿式高速摄影系统的补偿原理、结构及其试验结果。     

乳胶厚度对卤化银反射全息图衍射特性的影响

实验研究了自制的超细颗粒卤化银乳剂SDUF－1分别在AAC显影、改进的R－10漂白处理及改进的GP－8溶解物理显影处理条件下，其乳胶厚度对反射全息图衍射特性的影响。实验结果表明，在这两种不同处理条件下衍射效率与胶厚的关系有相当大的差别，合适的乳胶厚度分别为12μm和6μm左右。     

遮掩式低回波金属支架的设计

本文推出了一种具有固定遮掩屏的低ＲＣＳ金属支架系统；介绍了其主要特点及设计方法；计算了该支架了多种数学模型的散射截面分布；试验研究了优化支架模型的散射特性。本文的计算及试验结果对于设计制做产用回波金属目标支架具有重要的参照价值。     

Radiation-laminar free convection in a square duct with specular reflection by absorbing-emitting medium

The purpose of this work is to study the effects of specularly reflecting wall under the combined radiative and laminar free convective heat transfer in an infinite square duct. An absorbing and emitting gray medium is enclosed by the opaque and diffusely emitting walls. The walls may reflect diffusely or specularly. Boussinesq approximation is used for the buoyancy term. The radiative heat transfer is evaluated using the direct discrete ordinates method. The parameters under considerations are Rayleigh number, conduction to radiation parameter, optical thickness, wall emissivity and reflection mode. The differences caused by the reflection mode on the stream line, and temperature distribution and wall heat fluxes are studied. Some differences are observed for the categories mentioned above if the order of the conduction to radiation parameter is less than order of 10^-3 for the range of Rayleigh number studied. The differences at the side wall heat flux distributions are observed as long as the medium is optically thin. As the top wall emissivity decreases, the differences between these two modes are increased. As the optical thickness decreases at the fixed wall emissivity, the differences also increase. The difference of the streamlines or the temperature contours is not as distinct as the side wall heat flux distributions. The specular reflection may alter the fluid motion.     

基于Java反射机制的Excel文件导出实现

在信息量集中的系统中,把大量数据导出为Excel文件格式,既利于阅读也方便打印。这些特性使得Excel文件的导出被广泛应用于管理信息系统中。为了提高导出文件内容的个性化及易用性,本文探讨了利用Java的反射机制导出Excel文件的原理和方法。     

柳州,云浮,宣化三厂预热分解系统技术改进经验引起的思考

本文分析了柳州、云浮、宣化三厂预分解系统粘结堵塞、难以稳定生产和不能“达产达标”的原因,逐一介绍了三厂预分解系统技术改进的措施和效果,并就其技改工程经验进行了分析总结和探索思考.