随机系统的Fuzzy系统逼近

揭示随机系统的Fuzzy系统逼近.首先,相对于不确定性系统,给出了随机系统的定义,它视为对一个不确定系统的逼近.然后指出,对于任意给定的一个随机系统,总能将它转化为一组Fuzzy推理规则,由此可构造一个Fuzzy系统,并且证明这样构造的Fuzzy系统能逼近给定的随机系统到指定的精度.随后,讨论Fuzzy系统与随机系统转换中的还原性.这里通过实例展现这种逼近的效果,还用例子说明某些特殊随机系统的Fuzzy系统逼近.最后简要地概述不确定性系统的统一性问题.     

混沌系统同步性质的一个注记

对响应系统单边匹配得到误差系统,当误差系统趋于零时,实现了驱动系统和响应系统的混沌同步,而当把单边匹配的控制器分解成两部分,分别匹配到驱动系统和响应系统时(双边匹配),双边匹配得到的误差系统与单边匹配得到的误差系统完全相同。仿真结果表明:尽管两种匹配方法误差系统完全相同,但系统达到同步的时间不一样,并且双边匹配改变了系统的混沌特性,而单边匹配仍保持了系统的混沌特性。     

建筑漏电火灾报警系统安装与调试分析

文章结合漏电火灾报警系统系统的组成与功能,简单介绍了漏电火灾报警系统与火灾自动报警系统的区别,突出了漏电火灾报警系统系统的优势,着重分析了该系统在现场施工中时的安装工艺的注意事项,重视系统的调试运行。     

广义Hamilton系统与梯度系统

广义Hamilton系统-9梯度系统是两类不同的重要动力学系统．本文研究这两类系统的关系．首先,给出广义Hamilton系统,它是Hamilton系统的一种推广,而Birkhoff系统在一定条件下可成为广义Hamilton系统;其次,研究梯度系统及其意义;最后,研究两类系统的关系,并举例说明结果的应用．     

广义不确定性系统概念及其基本原理

给出了包含自然系统和人为系统的复合系统定义．以及确定性系统、不确定性系统的定义．论述了随机系统、模糊系统、粗糙系统、灰色系统、未确知系统、泛灰系统的内涵;进而引入了广义不确定性系统的概念,它涵盖了复合系统和广义泛灰系统．论述了广义不确定性系统的7个基本原理：给出了广义不确定性系统的基本结构,为综合研究客观存在的各类系统奠定了理论基础．     

数字集群通信系统工程方案研究

本文针对数字集群通信系统,分析比较了主流集群通信体制方案,包括TETRA系统、GT800系统、GOTA系统、iDEN系统,对主流集群通信系统工程方案进行了研究,并以TETRA系统和GOTA系统为例,设计了TETRA集群通信系统工程方案和GOTA集群通信系统工程方案,并分别给出TETRA集群通信系统工程方案和GOTA集群通信系统工程方案的应用范例。     

基于光纤通信方式的抄表系统通道设计

通信系统是远方抄表系统的神经系统,通信系统的可靠与否,将直接影响到系统的数据采集可靠性;通信系统的合理与否,将直接影响到系统的运行速度、故障恢复性能。因此高可靠性。合理的通信系统是系统的关键。     

人体系统动力学模型研究

该文主要讨论了人体系统模型,包括人体系统的物质模型、力学模型、数学模型和信息模型.重点讨论了人体系统的动力学模型基础理论,内容涉及人体系统的连续动态系统、离散动态系统、人体系统的随机性、自组织、人体系统的简单巨系统、复杂巨系统等诸多基础问题.     

基于工作流图的办公自动化系统的设计和实现

传统的系统需求分析方法有数据流图法等 ,但对于基于工作流的系统如办公自动化系统并不适合 笔者运用工作流图法对办公自动化系统进行需求分析 ,明确了系统需求 ,接着给出了系统的功能模块设计 ,并研究了基于LotusDomino/Notes的系统解决方案和系统实现技术 ,最后应用于镇江市经委OA系统的建设中 ,开发出相关的应用软件 ,为办公自动化系统提供了一种新的实施方法     

浅谈抄表系统的通信通道设计

通信系统是远方抄表系统的神经系统,通信系统的可靠与否,将直接影响到系统的数据采集可靠性;通信系统的合理与否,将直接影响到系统的运行速度、故障恢复性能。因此高可靠性、合理的通信系统是抄表系统的关键。     

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.     

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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

正~~