摘要：In the field of optical interconnecting network and in super fast photonic computing system, the tree architecture and optical nonlinear materials can play a significant role. Nonlinear optical material may find important uses in optical switching. Optical switch using nonlinear material makes it possible for one optical signal to control and switch another optical signal through nonlinear interaction in a material. In this communication such materials have been successfully exploited to design an all-optical tree-net architecture, which can be utilized for time division multiplexing scheme in all-optical domain.

摘要：The author establishes parallel corpus of The Apple tree by John Galsworthy and two translated Chinese versions by Huang Zixiang and Dong *** and ICTCLAS are applied to make a quantitative study on the linguistic features of the source and the target language.A comparative study is made on the translation skills and styles of the two Chinese *** samples are analyzed and *** is concluded that the form and the literal meaning of the source language is retained more in Huang’s version while the implied meaning is conveyed more in Dong’s version,with more standard,fluent,and natural Chinese and more flexible sentence *** socio-cultural contexts of the two translators are also considered in analyzing their styles and translation choices.

摘要：Dendrimers are considered as a promising family of organic second-order nonlinear optical （NLO） polymers because of their well-defined structures, easily modified peripheral functional groups, interior branches and central cores. In order to obtain NLO materials with high performance, dendrimer structures have been optimized in the past years, such as the ＂branch only＂ and the ＂root containing＂ type dendrimers. This feature article highlights the achievements in exploring the rational design of dendrimers, partially marked by their macroscopic NLO performance.

摘要：Based on the graphic theory and improved genetic algorithm,an improved genetic algorithm to search the minimum spanning trees is given . The algorithm uses binary code to represent the problem of minimum spanning trees. It designs the corresponding fitness function,operator and few controlling strategies to improve its speed and evolutionary *** one solution can be gotten with running traditional al-gorithem atone *** new algorithm can get a set of the solutions with higher probability in a shorter *** experiment shows that it has a better performance than traditional methods.

摘要：针对一些较复杂的家庭住宅,提出融合tree及改进型AODVjr路由算法—AODVjr-PB的家庭无线网络设计方案。网关由LPC2214嵌入式芯片设计,STC12C5A60S2单片机作为家电子节点控制核心。网关和移动遥控器通过IP-Link 1221无线模块监控家电,实现智能电器、环境监测和安全防护。网关还连接GPRS/GSM网络、Internet和公共交换电话网络(public switched telephone network,PSTN),操作者可通过手机或计算机远程遥控监测家电网络。系统具有安全可靠、简单实用、经济便宜和节能低耗的特点。

摘要：分词词典是汉语信息处理系统的一个基本组成部分 ,其查询和更新效率将直接影响汉语信息处理系统的性能。本文采用PATRICIAtree的数据结构 ,设计了一种可以对词典词条进行快速查询、更新的分词词典机制 ,并从理论上初步分析了它的性能。最后通过实验 ,在时间效率上与逐字二分的分词词典机制进行了比较。结果表明 ,基于PATRICIAtree的分词词典机制具有更高的查询速度和更新效率 ,能满足大规模、开放文本处理系统的需求。

摘要：随着互联网络和网络应用的高速发展,网络检测和安全性日渐重要.通过对网络数据包进行分析,可以实现对网络有效的监控,定位网络中出现的故障,保证其安全性.实现上述功能最重要的要求是如何快速准确地从海量的网络数据包中检索出符合条件的数据包.为了达到此目的,需要有效的工具来实现.然而,传统的工具并不具备这样的功能.因此,提出一种基于Wavelet tree的针对网络数据的数据检索方法,并设计实现了一个网络数据索引系统Pi.实验评估表明,通过Pi建立的数据索引大小为原文件大小的2%左右,且支持多种复杂的查询,对某一属性的准确查询、范围查询以及最值的查询等等.

摘要：英语教学是科学,也是艺术。作为一门科学,自然有其内在的规律;作为一门艺术,无疑应当讲究方法。要教好一种语言而不涉猎其语言理论,不探索其教学规律及其教学方法,语言教学活动就必然陷入一种不自觉的或者盲目的实践而终久不可能有根本的改观。

摘要：全新的基于全定制传输门结构42压缩高性能乘法生成器能根据用户输入自动产生并行乘法器的Verilog代码,并对Wallacetree的连线进行了优化.最后在末级加法器阶段,生成器能根据到达的时延不同自动选择不同加法器最优的分段.在设计某些乘法器时生成器产生的代码综合结果在面积增加10%～20%左右时比Synopsys Design Ware库里相应的乘法器快5%～9%左右.

摘要：传统的图像复原方法往往只考虑遥感图像获取过程中模糊和噪声对图像质量的影响,而忽略了图像混迭的影响.针对斜模采样系统调制传递函数各向异性的特点,通过自适应倒易晶胞确定图像中混迭和噪声较小的频谱覆盖范围;从图像复原的贝叶斯方法出发,以小波域隐马尔科夫树模型作为图像的先验模型,提出一种结合自适应倒易晶胞和隐马尔科夫模型的斜采样遥感图像复原方法.实验结果表明,该方法可有效地提高图像分辨率,较常用的图像复原方法复原效果更好.