正规三角模糊数的一种排序方法

为简化正规三角模糊数的比较.通过分析Tanaka提出的模糊数比较的满意度函数,得到了2个正规三角模糊数比较的简便公式;指出了刘新旺提出的模糊数比较公式的局限性.给出了比较正规三角模糊数大小关系的满意度函数.该公式能够比较正规三角模糊数的大小,而且能够使计算简化.最后,通过数值例子说明了该方法的简洁性与有效性.     

凸模糊合作对策的模糊核仁

为了弥补在简单对策中核心具有常常为空的缺陷,研究模糊合作对策的模糊核仁解.核仁是合作对策的一种重要的解的形式.通过把合作对策核仁解的模型延拓到模糊对策中,并通过定义模糊合作对策的字典序,给出了模糊合作对策的模糊核仁的概念;然后进一步探讨了凸模糊合作对策的模糊核仁非空且唯一等特征和性质,并对此加以证明.研究表明:模糊合作对策的核仁是合作对策核仁的自然延拓.该结果丰富了对模糊合作对策的解的研究,从而解决了凸模糊合作对策的解的结构问题.     

饱和执行器的T—S模糊系统的模糊控制及仿真研究

研究了带有饱和执行器的T-S离散模糊系统的控制律设计问题.建立了闭环模糊系统渐近稳定的判别条件.通过解LMIs,得到闭环模糊系统的控制律.最后,通过仿真研究说明了所给方法的有效性.     

模糊极小圈的若干性质

通过研究模糊极小圈的性质,在模糊拟阵中定义了一种新的连通性,由这种连通性研究了一个闭模糊拟阵与其对偶模糊拟阵的秩函数的性质,给出了一个模糊拟阵为连通模糊拟阵的等价刻画.最后,研究了两个连通模糊拟阵的直和以及模糊连通分支的性质.     

基于遗传算法的模糊神经网络控制器的仿真

对遗传算法(GA)和模糊神经网络控制器的结构进行了说明.为了克服反向传播算法(BP)的缺点,通过遗传算法对模糊神经网络控制器的参数进行优化,亦即对模糊神经网络进行训练.用通过优化后的模糊神经网络控制器控制一个带有纯滞后的非线性对象,仿真结果证实了其性能较常规模糊控制器优越.     

布尔代数的模糊点子代数

模糊点子代数是模糊代数研究的一个重要内容.通过将相关代数理论中的模糊点子代数概念引入到布尔代数之中,给出了布尔代数的模糊点子代数的概念,推广了布尔代数模糊子代数的概念.然后,系统地讨论了布尔代数的模糊点子代数的性质,给出了布尔代数的模糊点子代数的2个简化判断定理,证明了布尔代数的模糊点子代数的交、同态像和同态逆像也是布尔代数的模糊点子代数等相关结论.研究结果推广了布尔代数的模糊子代数及其相关结论,进一步丰富了布尔代数上的模糊理论.     

模糊OWL 2本体到模糊关系数据库映射形式化方法

针对语义Web上的模糊OWL 2本体,提出了基于关系数据库的模糊本体存储方法.通过深入分析模糊OWL 2本体的结构及语义特点,提出了基于模糊关系数据库的模糊本体存储结构,在此基础上,给出了模糊OWL 2本体到模糊关系数据库映射的形式化方法.理论和实例结果表明所提出的形式化映射方法是合理和可行的.     

基于模糊综合评价的城市物流枢纽规划

通过浙江省衢州城市物流规划的实证案例提出了城市物流枢纽规划选址的模糊综合评价方法,分析了模糊综合评价方法的实际应用.首先提出了城市物流枢纽规划选址的评价指标体系,应用模糊综合评价方法确定选址中的定性与定量指标隶属度.通过建立模糊综合评价模型,应用层次分析法确定评价指标权重,对评价指标进行单因素评价.通过模糊综合评价值的计算获得3个合理的备选方案,并提出了具体可行的衢州城市物流枢纽功能规划方案.     

需求依赖价格且模糊的订购定价模型

在需求对价格敏感且模糊的假设下,将确定环境下的订购定价模型扩展到模糊情形.文章首先建立了基于传统逆模糊化方法的库存模型;然后,通过把模糊需求看成模糊约束条件,建立了一个带有模糊约束的模糊非线性规划模型,进而根据最大隶属原则,将模型转化为确定型非线性规划问题,寻求最优解.最后,通过应用实例将2种建模方法进行比较.     

一种基于模糊推理的模糊本体的插入技术

本文介绍了在模糊本体检索插入中使用模糊推理的一种方法.并给出了一种模糊本体的生成方法,通过使用模糊蕴含和模糊合成,对这种方法生成的模糊本体进行矩阵推理计算并得出结论.     

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~~