基于Lotus Domino/Notes的专家会签系统的设计与实现

该文针对传统的项目申报流程中专家审批环节的缺点,结合枣庄学院当前专家审批的实际情况,基于Lotus Domino/Notes平台设计并开发了专家会签系统,实现了专家审批过程的异地性、自动化和网络化,保证了专家审批的公平性和透明性。     

基于Lotus Domino／Notes的专家会签系统的设计与实现

该文针对传统的项目申报流程中专家审批环节的缺点,结合枣庄学院当前专家审批的实际情况．基于Lotus Domino／Notes平台设计并开发了专家会签系统,实现了专家审批过程的异地性、自动化和网络化,保证了专家审批的公平性和透明性。     

一种分布式拒绝服务攻击的检测模型

提出了一种实时检测网络是否受到DDoS攻击的新模型,解决了传统检测方法难以区分突变正常流量与异常流量的问题.结合网络正常流量的特点,提出了检测DDoS攻击的新度量和检测算法.该算法不仅结构简洁、运算速度快;而且能够充分利用已知信息,具有较强的抗干扰能力.实际检测结果表明,本模型可实现时DDoS攻击的实时检测.     

Global Asymptotic Robust Stability and Global Exponential Robust Stability of Neural Networks with Time-Varying Delays

In this paper, based on nonnegative matrix theory, the Halanay’s inequality and Lyapunov functional, some novel sufficient conditions for global asymptotic robust stability and global exponential robust stability of neural networks with time-varying delays are presented. It is shown that our results improve and generalize several previous results derived in the literatures. From the obtained results, some linear matrix inequality criteria are derived. Finally, a simulation is given to show the effectiveness of the results.     

Globally Exponential Stability for Delayed Neural Networks Under Impulsive Control

In this paper, the dynamic behaviors of a class of neural networks with time-varying delays are investigated. Some less weak sufficient conditions based on p-norm and ∞-norm are obtained to guarantee the existence, uniqueness of the equilibrium point for the addressed neural networks without impulsive control by applying homeomorphism theory. And then, by utilizing inequality technique, Lyapunov functional method and the analysis method, some new and useful criteria of the globally exponential stability with respect to the equilibrium point under impulsive control we assumed are derived based on p-norm and ∞-norm, respectively. Finally, an example with simulation is given to show the effectiveness of the obtained results.     

基于MX组件的三菱PLC监控系统设计及应用

介绍了基于MX组件的三菱PLC监控系统设计过程及应用,以MX组件作为底层驱动接口,采用C#程序调用ACT控件中的函数,实现了上位机PC与不同型号三菱PLC之间的通信,奠定了监控系统设计的基础。并以三菱FX2NPLC为例,采用RS485为通信方式,完成了上位机PC对该PLC软元件状态与数据的实时采集和控制,在此基础上开发了某测试系统人机界面,经现场实际运行表明,效果良好。     

智慧校园应用系统的设计与实现

随着互联网技术的高速发展,智能手机、平板电脑等移动终端快速普及,移动互联网的信息化建设发展迅速.人们通过使用应用软件,实现信息的共享与交互,让生活变得更加便捷与智能,传统的数字校园已不能满足师生对信息的实时性和移动性的需求.本文围绕大学师生的校园学生和生活的需求,通过对智慧校园建设关键技术的分析,以移动终端为载体,构建...     

Terahertz narrow bandstop, broad bandpass filter using double-layer S-shaped metamaterials

Abstract In this study, double-layer S-shaped metamaterials （MMs） are analyzed by terahertz time-domain spectroscopy. These materials exhibit narrow bandstop and broad bandpass transmission properties at both horizontal and vertical electric-field polarizations. A 117% increase in the unloaded quality factor is experimen- tally observed for these materials. The center frequency is approximately 0.45 THz, with a 3-dB bandwidth of 0.52 THz from 0.20 to 0.72 THz at normal incidence. The measured average insertion loss is 0.5 dB with a ripple of 1 dB. These results show that double-layer S-shaped MMs are effective in designing tunable terahertz devices.     

Comparison of Australasian tertiary coals based on resolution-enhanced solid-state 13C n.m.r. spectra

¹³C solid-state nuclear magnetic resonance spectroscopy was used to characterize 32 low-rank coals from New Zealand and Austrlia. A combination of high magnetic field (4.7 T) and resolution ennhancement was used to extract spectral details beyond those seen in published spectra of coals of similar rank. Signal heights were used to characterize organic functional distributions. The spectra showed close similarities between Australian brown coals and low-rank New Zealand subbituminous coals, particularly those mined in the North Island. The spectra of New Zealand lignites all showed stronger signals from cellulose, methoxyl groups and phenols. Almost all of the New Zealand coals showed a relatively strong signal from polymethylene chains, compared with the Australian brown coals. This led to a prediction of higher alkene yields from pyrolysis of the New Zealand coals. Variations in phenolic substitution patterns were attributed to variations in the relative proportions of tannins and lignins in the depositional environments.     

光纤双折射对光纤环保偏能力影响的实验研究

为了研究光纤双折射对陀螺光纤环保偏能力的影响,选用三种不同型号的光纤采用相同的绕制方法制作相同规格的光纤环.采用白光干涉仪测试光纤环的偏振耦合分布,并利用光纤环两端尾纤与白光干涉仪尾纤的熔点引起的偏振耦合干涉峰计算绕环光纤的双折射.通过不同光纤环测试结果的比较,分析绕环光纤双折射对光纤环保偏能力的影响.测试结果表明,三...