浅析非线性编辑网络系统

非线性编辑网络是未来一段时间视频技术发展和人们注目的焦点.它在我国电视节目制作与播出系统由数字化向网络化过渡的过程中起到了积极的推动作用.分析了非线性编辑网络系统的结构、组成、网络管理、网络的稳定性和安全性.     

使用EXCEL软件讨论透镜的像差问题

球面光学透镜在实际应用中难以形成理想的像。使用EXCEL软件,对球面透镜的偏差进行计算,作图并分析透镜的像差及解决办法。     

非线性混合似变分不等式解的存在性

本文介绍了自反Banach空间中一类非线性混合似变分不等式，利用极大极小不等式和辅助变分原理技术，给出了这类非线性混合似变分不等式解的存在性与唯一性的新证法。     

Non-linear 2-DOF model and centre manifold theory to study limit cycle oscillations caused by drum-brake judder

This paper presents the research on the laws of systematic-parameter dependent variation in the vibration amplitude of drum-brake limit cycle oscillations (LCO). We established a two-degree non-linear dynamic model to describe the low-frequency vibration of the drum brake, applied the centre manifold theory to simplify the system, and obtained the LCO amplitude by calculating the normal form of the simplified system at the Hopf bifurcation point. It is indicated that when the friction coefficient is smaller than the friction coefficient at the bifurcation point, the amplitude decreases; whereas with a friction coefficient larger than the friction coefficient of bifurcation point, LCO occurs. The results suggest that it is applicable to suppress the LCO amplitude by changing systematic parameters, and thus improve the safety and ride comfort when applying brake. These findings can be applied to guiding the design of drum brakes.     

形变映射方法和非线性WBK方程的研究

拓展了形变映射方法，以非线性WBK水波方程为例，获得系统丰富的解析解，包括孤波解，周期波解，雅可比椭圆函数解和其他精确解．     

遗传算法在非线性方程组求解中的应用

本文研究了遗传算法在非线性方程组求解上的应用，分析了其解决此类问题的特性及局限性。     

汇率干预中的多点自由边值问题的数值计算方法

1IntroductionIt is i mportant for the economic development of acountry to maintain the stabilization of exchange rate,so the intervention of exchange rate has become thetopic of the main concerns of the economic and math-ematical circles[1-5].To maintain the stabilization ofexchange rate,many countries use target zone re-gi mes,that is,the central banks intervene in the for-eign exchange market such that the exchange ratestays within the interval[a,b].There are fixed costand cost proportional …     

大学物理波动光学教学与信息技术整合的研究

在大学物理教学中引入信息技术，在大学物理波动光学概念与规律的教学过程中改革传统的大学物理教学手段和教学方法，实现信息技术与物理概念、规律教学整合，提高教学效果和学生的创新精神，本文提出了一些方法与思路，为相关学科的教学改革提供有益的启示。     

亮度取决于像的性质吗？

近年来，有一道几何光学题频繁出现，虽然答案正确，但是解析欠妥，易使人误解．该题及解析究竟源于何处，笔者未作考证，为方便起见，抄录于此：