三基色计算全息图

介绍了三基色计算全息图的设计与制作，用白光光源照明该全息图，可以演示光的叠加，再现彩色图像并给出了理论分析和相应的实验结果。     

Characteristics in optimization of CGH for array generator

A method of simulated annealing in optimization of a computer generated holo-gram(CGH)is presented.The characteristics of energy in annealing curve are analyzed.Thecooling schedule such as giving an initial temperature,the temperature function,the numberof interactions and stopping criterion are discussed.As an example,an optimization of phaserelief kinoform,a CGH with multiple phase levels,is implemented.     

On centroid branches of trees from certain families

We obtain various results involving the centroid branches of randomly chosen trees from simply generated families.     

Isoperichoric focusing field-flow fractionation and thin layer isoperichoric focusing based on coupling of gradient generated by primary field with secondary field action: general principles and performances

The primary field forces can generate spatially oriented gradient of the effective property of a continuum or pseudo-continuum fluid (carrier liquid). When this gradient is coupled with the action of a secondary field of identical or different nature the isoperichoric focused zones of the dispersed species can appear. Consequently, they can be separated according to differences responding to the property gradient of the carrier liquid. This concept can be applied under static (non-flow) conditions in thin layer focusing as well as under dynamic conditions with the elution due to the carrier liquid flow in focusing field-flow fractionation. The gradient established by the action of the primary field and the concentration distribution of the isoperichoric focused zone formed by the coupled effect of the gradient and of the primary or secondary field are described theoretically. The rigorous relationship describing the shape of the focused zone is compared with the approximate solutions. The performances of the proposed principle were evaluated by model calculations. Potential experimental configurations considering the implementation of the static and dynamic conditions are discussed. The generalized isoperichoric focusing theory can be applied to describe the particular processes operating in analytical and preparative focusing separations of the particles of various, but especially of biological origin.     

Weakly compactly generated Banach spaces and the strong law of large numbers

IfB is a weakly compactly generated Banach space andf: (S,S, ) satisfies the strong law of large numbers, thenf=f ₁+f ₂, wheref ₁ is Bochner -integrable andf ₂ is Pettis -integrable with Pettis norm 0. The decomposition is unique.     

关于Hamilton图的一点注记

通过类似于对一可平面图求生成树个数的方法,得到一个关于Hamilton图的Hamilton圈的个数的等式。并讨论了一类特殊的平面图。     

环面蜗杆制造误差的检测分析

针对当前蜗杆制造误差检测的实际情况，结合成都工具研究所研制的蜗杆误差检查仪，进一步深入讨论了一种改进性方案的原理及其电路的硬软件设计。该方案的下位机硬件系统主要是数据采集电路，应用重庆大学张光辉教授的发明专利“计算机对脉冲信号的细分与辨向新方法”，利用频率极高的外部插入脉冲，结合软件构成按时间均匀分度的辅助标尺，完成在动态测量过程中采样点实时细分任务，再将采样数据上传给上位PC机进行数据处理，得出检测结果。该方案集成度高，并且大大简化了传统检测方法中繁琐复杂的硬件电路。     

关于sumfromi=1ton(Ai+B)~k

利用生成函数的方法得到的一些性质和定理.     

修正离轴参考光计算全息图的数值再现及像质评价研究

修正离轴参考光计算全息图制作方法中,博奇、黄氏及李维汉型三种计算全息图实质上是分别在全息图函数中加入新的偏置项,从而形成不同的全息图编码方式.由于这三种编码方式所加的偏置项不同,其对再现像质量的影响也不相同.本文将计算全息技术与数字全息技术相结合,实现了博奇、黄氏及李维汉型三种计算全息图的设计制作、数据处理、再现过程的全数字化.一方面,采用计算机对计算全息图进行数字化滤波,在频谱域消除虚像和零级像,得到了单一的清晰实像;另一方面,通过引入信噪比和图像亮度等参数指标,对以上三种计算全息图的再现像质量进行评价