基于免疫原理的入侵检测模型研究

简要介绍了生物免疫学的原理，对基于免疫学的入侵检测的相关技术进行了介绍，重点分析了检测器生成的否定选择算法，并以开源入侵检测工具Snort为基础，提出了一个基于免疫原理的入侵检测系统模型，最后给出了该系统模型同时具有误用检测和异常检测的优点，并具有很好的自我适用能力。     

发电机三相电压相位差的数字测量

针对噪声干扰、量化误差和信号频率波动，提出了一种基于谐波分析和周期跟踪测量相位差的方法，介绍了测量原理和实现方法，在发电机试验系统中的应用表明，该方法是一种切实可行的高精度相位差测量方法。     

自蓄热烧嘴的研制与实验研究

简述了自蓄热烧嘴系统的设计与研制过程，并利用该装置系统进行了实验室的实验研究。研究结果表明：该装置系统既能高效回收烟气余热，又能大大幅度降低NOx的排放；而且其设计原理合理，结构简单，具有进一步进行工业试验的价值。     

OLTP技术及模型概要设计

OLTP(Online Transaction Process，联机事务处理)是当今大型系统应用的主要模式。文章简要介绍了OLTP的技术原理及OLTP平台概要设计。     

直8型机起落架缓冲支柱缓冲试验中的若干问题

本文简要介绍直8型机起落架绥冲支柱缓冲试验的原理和方法，并结合生产和大修的实践，对试验中存在的若干问题及调整方法进行分析，提出了试验的优化方法，经生产验证，提高了试验的效率。     

新一代软件加密狗原理及应用

简要介绍了软件加密狗的几个发展阶段，具体说明了加密狗的软、硬件原理，最后结合某型软件加密狗介绍了其在软件保护中的具体应用。     

TRF6900在矿井移动通信系统中的应用

超高频通信已成为矿井无线通信的主要发展方向，文中论述了工作于900MHz的FM／FSK射频收发芯片TRF6900的DDS／PLL工作原理以及本振电路的设计，介绍了由该芯片及微处理器、功率放大器、天线开关设计的矿井移动通信手机组成结构，并提供了同其它频段通信手机对比的井下试验数据。试验证明TRF6900非常适合应用于井下电池供电的移动通信系统。     

光纤光栅传感系统维护及原理研究

光纤光栅传感系统使用光纤作为测量元件和信号传输介质，为提高光纤对温度、应力的敏感程度及准确定位能力。文章对光纤光栅传感系统的基础知识、系统维护、制作原理及使用注意事项进行了简要的论述。     

三仓泵各仓结构参数的设计

介绍了一种能连续供料的新型气力输送系统－三仓泵的设计思路和其各仓结构参数的设计方案，试验结果表明，该方案正确、合理。     

带有BCH纠错码的高性能射频IC卡系统

为了进一步提高射频IC卡系统的性能和拓宽其应用范围，介绍了一种带有BCH纠错码器件的射频IC卡系统，从而增强了系统的抗干扰能力，该系统能适中种不同的环境。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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