IPv4/IPv6翻译网关的研究

In this paper, a model of translation gateway is proposed. The communications between IPv4 network and IPv6 network are realized by using the Microsoft intermediate driver technology in environment of Windows 2000.     

在学校建立数字化图书馆的必要性

在藏文民族学校建立图书馆的起步较晚，受经费紧张的影响及各种专业设置不稳定等因素，馆藏的文献资料较为贫乏，要想在短时间内赶上普通高校图书馆文献资料馆藏的数量，为教育教学，师生员工提供好资料相当困难，要改变以往馆藏资料贫乏的现象，建立一套科学的数字化图书馆是一项很合理很必要的管理模式。     

Evolution of Weighted Networks by Duplication-Divergence Mechanism

The duplication and divergence process is ubiquitous in nature and man-made networks. Motivated by the duplication-divergence mechanism which depicts the growth of protein networks, we propose a weighted network model in which topological evolution is coupled with weight dynamics. Large scale numerical results indicate that our model can naturally generate networks with power-law-like distributions of degree, strength and weight. The degree-strength correlation is illustrated as well. These properties are in agreement well with empirical data observed in real-world systems. Furthermore, by altering the retention probability δ, weighted, structured exponential networks are realized.     

试析少儿英语的“感知”教学

如何提高少儿英语的教学质量,这是全社会共同关心和急需解决的问题。本文在前人研究的基础上,结合少儿的特点,着重探讨少儿英语的“感知”教学,即让少儿在“感知”中习得英语。     

Synchronizing Complex Networks by an Adaptive Adjustment Mechanism

We propose an adaptive adjustment mechanism for synchronizing complex networks, in particular for sociological or/and biological systems. We do not take it for granted that a dynamical system is put on isolated nodes and they are coupled with each other by one （or more） variable（s）, as employed in most previous models. As a replacement, we suppose that each node may have any finite number of possible states, and their evolutions with time are determined by their nearest-neighbouring （or even second-nearest-neighbouring, etc） nodes in an adaptive adjustment mechanism. It is found that synchronization can be achieved for almost all connected networks and that the scale-free property can evidently improve the synchronizing speed.     

高负荷情形开网络的强逼近

本文用强逼近理论,对一般排队网络在高负荷情形下,得到了队长,虚等待时间和顾客在网中逗留时间的强逼近定理.同时还得到了队长嵌入过程的强逼近定理.     

讲二次根式以前一定要先讲实数理论吗？

1.前言根据现行全日制中学数学数学大纲,讲二次根式以前,先讲数的开方和实数概念.这是完全正确的.因为二次根式的理论基础是有理数的平方根,因此必须先讲数的开方,由此就出现了无理数.这就迫使我们非讲实数概念不可.这是初中代数教学中一大难点.对于初中学生来说,要理解实数概念太困难了.可是不讲又不行.二次根式就无法进行了.没办法,只好马马虎虎地讲.目前中学数学大纲就是采取这个方针.