狭缝光栅分光特性及其对视区的影响

应用光栅等分光元件对视差图进行空间分离是实现立体显示的重要方法之一,介绍了狭缝光栅作为分光元件实现立体显示的原理,建立了子像素发光经过多个周期狭缝光栅的数学模型,分析狭缝光栅参数及子像素发光宽度对视区及立体显示器亮度的影响。结果表明,在对狭缝光栅参数设计过程中需要综合考虑视区特性与显示器亮度,狭缝的透光比应控制在0.2～0.3,在样机生产过程中将透光比定为0.25,采用高亮背光模式以补偿立体显示器亮度,取得了较好效果。结果对狭缝光栅的参数设计具有指导意义。     

地球同步气象卫星星载高精度太阳敏感器的研制

根据地球同步气象卫星 (GSMS)星载扫描同步控制器系统的要求和对太阳目标特性的分析 ,研制了一台用于该GSMS的星载高精度太阳敏感器 (HASS)及配套的性能测试装置 .该太阳敏感器的光学头部由两对狭缝组成 ,采用平衡检测方式产生高精度的太阳脉冲 ,为星上扫描同步控制器和卫星地面站云图配准的引导提供基准信号 .其在卫星子午面内的扇形视场为 - 2 9.5°～ 2 9.5° ,当其随星体按 10 0r/min的速率旋转时 ,可实现 0 .4 6 μs(r.m .s)的测量精度 .另外 ,该太阳敏感器还具有高可靠性、实时性和低功耗的特点     

凝视热成像系统MTF测试技术分析

概述了目前进行高成像系统ＭＴＦ测试的几个主要方法，着重分析了其中的斜缝法和激光散斑法各自解决问题的工作原理，技术特点及技术关键，指出，对于凝视成像系统的ＭＴＦ测试，这是两种比较值得研究和推广的技术。     

切分轧制技术的发展与应用

简要回顾了近年来切分轧制技术的发展过程，着重介绍了几种典型的切分轧制工艺及其应用，并分析了该技术的发展动向。     

三维漫射体真彩色合成似狭缝彩虹全息术

采用合成似狭缝彩虹全息术记录三维漫射体真彩色彩虹全息图，用单波长激光逆光路再现。在记录过程中，不同波长的参考光具有不同的入射角，从而使透镜孔径的有效利用率达到最高，并给出了理论分析和实验结果．     

多缝式烧嘴点火器在攀钢烧结生产中的应用

多缝式烧嘴点火器具有燃烧效率高，火焰长度易调，炉膛温度分布合理等优点，经工业试验证明，该点火器能满足攀钢烧结点火工艺要求，并有明显节能效果。     

CARS光谱测温及仪器狭缝函数对测量的影响

设计了一种利用光参量振荡器(OPO)来代替染料激光器的宽带相干反斯托克斯喇曼散射(CARS)光谱测温实验装置。为了提高CARS测量温度的精度,测量和分析了检测系统中狭缝函数对测量结果的影响,确定了狭缝函数的具体形式。将测量结果与热电偶读数比较,发现在温度范围300K～1200K内,温度测量的不确定度小于2%。     

兼使水流转向的非对称窄缝挑坎

讨论了兼有水流转向功能的一级非对称直线边壁窄缝的设计方法与水力特性，两边墙转向角之差即为水流转向角，两边墙转角相等时出口水流的水深和佛汝德数也分别相等。按在窄缝出口前形成完整幅射流的条件，讨论了兼有转向功能的非对称曲线边墙窄缝的设计方法与水力特性。比较了六种体型(三种对称、三种非对称)窄缝在八种工况对泄槽底板的冲击压强，实测结果表明，非对称性越强冲击压强越小。     

Partitioning of polymers into pores with surface interactions at dilute solution limit

The partitioning of a single polymer chain into a slit in a good solvent with different surface interactions is examined through Monte Carlo simulations from subcritical regime to adsorptive regime. The chain conformation in the subcritical regime is not perturbed by the surface interactions significantly. In the adsorptive regime, the conformation of the chain is strongly perturbed by the surface interactions. The confinement free energy in the two regimes maybe written in a uniform formula, βΔμ_conf∼c₁N(a/D)^xε_w+c₂N(a/D)^1/ν with x∼2.0 or larger in the subcritical regime and ∼1.0 in the adsorptive regime, where ν is the Flory exponent, D is the slit width, N is the chain length, a is the monomer size, and ε_w is the surface interaction energy between the polymer beads and the slit. This formula is valid for a long chain in the narrow slit in the subcritical regime or when the adsorption layer h>D in the adsorptive regime. A critical behavior occurs when ε_w is at the critical adsorption point and x=1/ν, then Δμ_conf will have little dependence on N or D. Higher order terms that are neglected in the above equation, however, may be present that could lead to a weak dependence of K on N and D even in the critical adsorption point.     

Disclosure in 3D of slit-membrane as well as -strands, and en-face basal lamina in situ of renal glomerulus of normal rats in embedment-free section transmission electron microscopy

With higher contrast and transparency due to the absence of epon and stereo-viewing effect due to thicker sections than conventional electron microscopy as methodological advantages, the renal glomerular slits were re-examined in embedment-free section electron microscopy. In addition to clear demonstration of strands bridging the slits in forms of ladders with highly irregular intervals and various extension-directions and length, this study disclosed clearly for the first time in the "section" TEM thin sheets which partially spanned the slit together with the strand-ladders. No strands were found to align in forms of typical zippers in normal kidney. Furthermore, en-face ultrastructure of the basal lamina in situ was clearly demonstrated in superimposed sites of the endothelial fenestrae with the slits.