OADM环网的实验研究

研究了光分插复用器(OADM)的关键技术,重点分析了相关的实现技术,完成了利用OADM构建全光环网的实验研究,给出了重要的实验数据,包括眼图、光谱图、光信噪比、保护与恢复等,并对这些实验数据进行了分析,为光传送网的设计与构建提供了重要的参考依据.     

Porous surfur-doped hard carbon for excellent potassium storage

Hard carbon is promising anode for potassium-ion batteries(PIBs),however,the poor rate capability hinders its development as potential anode.To address this question,we design a sulfur-doped porous hard carbon(S-HC)for PIBs through the combination of structural design and composition adjustment.The as-designed S-HC exhibits a long cycling life with^191 mAh/g after 300 cycles at 1 A/g,and an excellent rate capability with^100 mAh/g at 5 A/g,which was attributed to its structural characteristics and compositions.The S-HC demonstrates to be promising anode in the future.     

光交叉连接节点的功能结构

光交叉连接(OXC)是未来波分复用光传送网实现交换与选路功能的核心部件.目前,OXC节点的物理结构得到深入研究,已经提出了一些采用不同光子器件的OXC实现方案.本文从描述光交叉连接功能的角度出发,给出一种分析OXC节点功能结构的模型,并比较各种OXC方案在功能结构上的差异。     

Molecular modeling of the binding mode of chiral metal complexes δ- and ∧-[Co(phen)2dppz]3+with B-DNA

Molecular modeling methods have been applied to the structural characterization of the interaction between chiral metal complexes [Co(phen)₂dppz]³⁺ (where phen = 1, 10-phenanthroline, dppz = dipyrido[3,2-a: 2′, 3′ -c]phenazine) and the oligonucleotide (B-DNA fragment). The natures of two kinds of the binding modes, which are currently intense controversy, have been explored. Barton proposed that there is enantio-selective DNA binding by the octahedral complexes and intercalative access by these complexes from the major groove; but Norden suggested that both enantiomers bind extremely strongly to DNA from the minor groove without any noticeable enantio-selectivity. Our results support and extend structural models based upon Norden’s studies, and conflict with Barton’ model.     

一种求解虚波长路径光网络波长资源优化问题的启发式算法

本文提出了一种虚波长路径光网络的启发式路由选择算法,它可以用来解决以最小化网络所需波长数目为目标的资源优化问题.该算法应用了基于最大概率路径的选路优化策略.对一个样例网络的数值分析结果表明该算法是有效的.     

双孤子压缩态的特性

在线性近似条件下,量子化了非线性薛定谔方程,用后向传播法数值求解了双孤子压缩态的特性.数值结果表明,在碰撞距离附近,压缩比显著增加.减小孤子间相互作用,可以降低压缩比.     

ON AN OPEN PROBLEM PRESENTED BY LADAS

ConsiderneutraldifferentialdiffereflceequatinwhereTE(0,co),ae[0,co),Q(t)EC[[t.,co),R ].In1988,G.Ladaspresentedanopenprobleminprivatecommuni(:ationandthenin[1].Theproblemisasfollowing:Assumethatfi:Q(s)ds=co,showthateverynonoscillatorysollltioTIot'equation(…     

Dammann光栅在光互连中的应用

本文将Ｄａｍｍａｎｎ光栅［１，２］应用于光互连，提出了用Ｄａｍｍａｎｎ光栅实现完全混洗的方法．一个２×２的Ｄａｍｍａｎｎ光栅与一个成像透镜的组合，具有与四焦点透镜类似的成像作用．像面上，像的位置与Ｄａｍｍａｎｎ光栅的位置有关，适当选择光栅的位置可以实现不同元素数目及不同元素密度的完全混洗．本文给出了有关的理论推导及实验结果．     

用无衍射光子束写入细微图形的CAM技术

本文提出了用无衍射光子束写入细微图形的新方法,从理论上论证了无衍射光子束的生成机理.设计了无衍射光子束的发生装置.介绍了已研制成功的CAM光刻机.     

Pseudo almost periodic solutions of differential equations with piecewise constant arguments

In this paper, we give a definition of pseudo almost periodic sequence and study the existence of pseudo almost periodic sequence to difference equation. Based on these, we investigate the existence of pseudo almost periodic solutions to differential equations with piecewise constant arguments which was considered by K. L. Cooke & J. Wiener and found applications in certain biomedical problems.