双束激光法测薄透镜焦距的实验探究

利用激光特性,结合透镜三条特性光线之一,提供了一种利用平行激光束测量凹、凸透镜焦距的方法。该方法仪器装置简单,准确率高,拓宽了实验思路与方法,可作为学生设计实验。     

一种基于Hamilton阵列编码和RC4算法的密钥编排方法

本文从序列密码和Hamilton阵列编码的理论分析人手，利用一种高维大码距的Hamilton阵列编码算法，结合RC4算法设计了一种密钥编排方法。从对输出序列的分析看出，利用可以看作是变结构的Hamilton阵列编码来构造密钥编排方法，具有一定的实用意义。     

Constrained oscillation of a bubble subjected to shock wave in microvessel

A three-phase coupled model of the gas–liquid–solid oscillation system is established to analyze the oscillation characteristics of a bubble inside a micro blood vessel with various radii and its shape changes with different interface boundaries. The results show that unlike the spherical symmetric oscillation in an unbounded fluid, the oscillating bubble has significant asymmetric characteristics under the constraint of a flexible microvessel, especially while its radius reduces to the same order of magnitude as that of the bubble. Moreover, the variation of microbubble motion, whether the geometric shape or oscillation feature, exhibits obvious differences in the micro blood vessel compared with the rigid wall. The reasons behind these phenomena are analyzed in this paper. The conclusions have significant importance in the understanding of the mechanism of microvessel injury in ultrasound therapy.     

高等师范院校无机化学实验教学改革初探

本文结合我院化学专业无机化学实验教学改革的实际情况,对高等师范院校无机化学实验教学的改革进行了初步的探索,以便适应素质教育的需要,培养出能力强、素质高的化学教师。     

Temperature-sensitive goldnanotube array membranes modified with poly(N-isopropylacrylamide)

A kind of temperature-sensitive nanotube array membrane was developed by modifying gold-nanotube array membranes with poly(N-isopropylacrylamide) (PNIPAm). The permeation ability of the mem-branes at different temperatures was investigated using sodium fluorescein and quantum dots as probes. The results showed that the pore diameter of nanotube was changed due to the reversible re-sponse of PNIPAm-modified membranes to temperature, and then the permeation ability of the mem-branes was changed. The permeation of fluorescence probes was slow and even almost blocked at 25℃ (below the lower critical solution temperature, LCST), since PNIPAm formed expanded structures and decreased the pore size. While at 40℃ (above the LCST), the permeation was increased, since PNIPAm became compact structures and the pore diameter was increased. Furthermore, the permea-tion ability of the temperature-sensitive nanotube array membranes could be adjusted reversibly and it is possible to use the membranes in nanofluidic devices, nanogates, etc.     

二维光阵列发生器的设计

研究了二维光阵列发生器的设计原理 ,设计和加工了二维 16× 16、32× 32点阵的光阵列发生器 .     

透镜成像放大率的研究及应用

讨论了物点、平面物体关于透镜成像的横向放大率和纵向放大率的定义式、计算式、函数曲线及相互关系，并举例说明了它们的应用     

Optimum linear array of an optical aperture synthesis telescope

Measuring out successively the degree of coherence of the source produced by any couple of the small apertures via rotating an array composed of the small aperture telescopes, and synthesizing them into the (u, v) coverage of the source, the brightness distribution of the source can be obtained by the inverse Fourier transform of the degree of coherence with much higher resolution than from a single telescope. This article discusses the arrangements of the small apertures in the linear array, and found a method to decide the quality of the arrangements. the judgment factor ε is introduced to calculate the arrangements in quantity. There are 1.5×10¹¹ possibilities for 11 apertures. Therefore, the computer procedures are programmed to select the optimum arrangements. The effect of the simulation of the aperture synthesis is given for the linear array. The simulation method can also be used in the nonlinear arrays.     

采样-保持电路中的一种增益误差自校正方法

提出一种用于流水线模数转换器(ADC)中的模拟增益误差自校正电路．该电路由一个可编程电容阵列、一个比较器和一小块数字电路组成，通过对第一级采样一保持电路的增益进行校正，使它的增益误差达到12bit转换精度的要求。仿真结果表明，整个流水线ADC的有效量化位数从原来的9．95bit提高到11bit。     

An Intelligent Design of Electron Lens System

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