若干重要逻辑蕴涵算子的性质与比较

对十个重要逻辑蕴涵算子的性质进行了较全面的比较研究，得到了若干基二结果，它们在各逻辑系统的比较研究中有一定参考价值。     

A δ-function-like peak in the specific heat of two-dimensional vortex lattice: Monte Carlo study

A repulsive vortex-vortex interaction model was used to numerically study the melting transition of the two-dimensional vortex system with Monte Carlo method. Then a δ-function-like peak in the specific heat was observed and the internal energy showed a sharp drop at the melting temperature, which indicated that there exists a first-order melting transition at finite temperatures. The Lindemann criterion was also investigated and valid, but different from previous simulation results. Project supported by the Science and Technology Ministry of China (No. NKBRST-G19990646) and Zhejiang Provincial Natural Science Foundation (No. 199031)     

Banach格上半群的局部谱半径

主要讨论了Banach格E上Co-半群的局部谱半径的性质，一些相应的特征也得以讨论．     

基于诱导信息的交通流动力学特征与非线性密度波研究

In this dissertation,based on the existing macro- scopic and microscopic models for traffic flow,several improved mathematical models in accordance with the rapid development of intelligent transportation system (ITS) are proposed,and the corresponding theoretical analysis and numerical simulation are performed.In     

简单离子晶体离子半径比的计算

介绍了关于简单离子晶体中离子半径比的计算方法,给出了一个适用于各种类型简单离子晶体的一般公式,具有简便直观,易掌握之优点。     

"微机原理与接口技术"开放性实验建设——"点阵LED显示器显示汉字"实验

在"TPC-H通用微机接口实验系统"的基础上,利用其J7端子的通用插座开发外接实验电路板,设计出"点阵LED显示器显示汉字"实验电路。该实验电路可在面包板上实现,实验者可根据实验原理和要求,从实验电路着手,进行面包板上的电路连接、安装,上机编程调试等操作,有助于实验者深刻理解实验原理与电路,提高动手能力。     

关于剩余格蕴涵代数中的准素滤子

在剩余格蕴涵代数中,提出准素滤子的概念.讨论了准素滤子与素滤子之间的关系和准素滤子与其格蕴涵同态像之间的关系.最后,得到了在格H蕴涵代数中,准素滤子和素滤子等价的结论.     

固体物理学中的一维晶格问题

通过对一维晶格晶体性质的研究，我们得到了学习固体物理学的简单方法，并加深了对固体物理学相关知识的巩固和理解。     

一种自适应IIR 格型陷波器新算法及性能分析

A novel adaptive algorithm of IIR lattice notch filter realized by all-pass filter is presented.The time-averaged estimation of cross correlation of the present instantaneous input signal and the past output signal is used to update the step-size,leading to a considerably improved convergence rate in a low SNR situation and reduced steady-state bias and MSE.The theoretical expression for steady-state bounds on the step-size is derived,and the influence factors on the stable performance of the algorithm theoretically are analyzed.A normalized power factor is then introduced to control variation of step-size in its steady-state bounds.This technique prevents divergence due to the influence of large power input signal and improves robustness.Numerical experiments are performed to demonstrate superiority of the proposed method.     

Science Letters: Lattice type transmission line of negative refractive index

In this letter, we introduce a novel passive transmission line of negative refractive index （i.e., left-handedness） based on identical symmetrical lattice type structures [thus called ＂lattice type transmission line＂ （LT-TL）]. The dispersion characteristic and the transmission response of the proposed LT-TL are analyzed. While all the other left-handed passive transmission lines are of high pass, the present passive left-handed transmission line is of low pass. Compared with a conventional transmission line, the LT-TL has a phase shift of 180° in the entire wide pass-band.