Φ630石英轻质抛物面反射镜的二维动态哈特曼检验

简要介绍二维动态哈特曼波前探测仪检测波面形的基本原理、方法及其特点。首次运用该方法对φ630石英轻质抛物面反射镜实现了定量检测，给出了镜面面形测量结果。     

非负权重最优组合预测方法的基本理论研究

本文从三个方面研究了非负权重最优组合预测方法的基本理论，给出了一种解决三阶非负权重最优组合预测问题的简捷方法。     

回转体零件特征和GT编码自动转换系统的研制

文章主要介绍了作者研制的回转体零件特征和ＧＴ编码的自动转换系统的原理和实现方法。该系统具有良好的实用价值。     

间歇输片中胶片下冲规律的研究

本文从理论和实验两方面研究间歇输片的下冲规律。研制出高画幅稳定度间歇式高速摄影机。     

Magnetic Exchange—Coupled Sm（Co,R）／Cr（R=Al,Si,Ti,Nb,Cu）series Films for Ultrahigh—Density Longitudinal Recording Media

SmCoR(R=Al,Si,Ti,Nb,Cu)/Cr series films were fabricated as one kind of promising materials for the ultrahigh density longtudinal magnetic recording media.The Sm(Co,Al,Si)/Cr thin with coercivity up to 2.36kOe,squareness ratio S near 0.94 and coercive squareness ratio S^* about 0.9 were obtained.The Cr interlayer caused magnetic decoupling in Sm(Co,Al,Si)/Cr/Sm(Co,Al,Si)thin films,High coercivtty of 3400-3840Oe and extremely fine grain size of 5-8nm for the magnetic layer were examined.Using different substrate bias among the Sm(Co,Al,Si)(deposited with substrate bias of -150V)/Sm(Co,Al,Si)(deposited with no substrate bias)/Sm(Co,Al,Si)(deposited with substrate bias of -150V),the multilayer exhibited high coercivity of 2960Oe and S^* of 0.96,Sm(Co,Al,Si)/Sm(Co,Ti,Cu)/Sm(Co,Nb,Cu) trilayer improved matching between the magnetic layer and the Cr underlayer,and led to increasing in-plane anisotropy,high coercivity of 3280Oe and S* of 0.92,Lattice matching of SmCoR{112} and Cr{110},etc.were found under various conditons.The microstructures of these four kinds of medium were also examined.The results suggest that it is possible to produce Sm(Co,Al,Si,Ti,Nb,Cu)multi-layer media with the combined magnetic properties required for the ultrahigh desity magnetic recording.     

Structure of Vortex Dislocations is a Wake—Type Flow

Structure and dynamical processes of vortex dislocations in a kind of wake-type flow are described clearly by vortex lines,which are directly constructed from data of three-dimensional direct numerical simulations of the flow evolution.     

线性规划的支撑方法（一）

本文简要介绍了求解线性规划的支撑方法。它引入了类似于基的支撑概念，但对非基变量不作为零的要求，即迭代不一定在极点上进行。文中给出了包括支撑可行解、ε－最优解（次优解）在内的主要概念，论述了最优性判据和次优性判据，建立了迭代算法并证明了有限步终止性。     

质子射频场照射对碳—13自旋晶格弛豫的影响

用推广的Ｓｏｌｏｍｏｎ方程描述了＾１Ｈ通道加上射频场的＾１３Ｃ自旋晶格弛豫，分析表明在＾１Ｈ射频照射下＾１３Ｃ自旋晶格弛豫通常是一个三指数过程，但是在一些实验条件下可以变为单指数的；数值计算给出了满足Ｔ１＾ｃ＜Ｔ１＾Ｈ和满足Ｔ１＾ｃ＞Ｔ１＾Ｈ的＾１３Ｃ自旋晶格弛豫过程的明显差别，并显示了不同射频场强度的影响，实验观测了固体Ｌ－缬氨酸的甲基＾１３Ｃ自旋晶格弛豫，所得结果与理论分析很好符合。