基于LGIOWA算子的方案优选问题的分析

采用不确定语言型决策方法来解决方案优选等具有多属性的模糊群决策问题,给出了一种模糊语言评估标度相应的三角模糊数表达方式,提出了LGIOWA算子,及其在应用过程中的具体步骤,并提出了一种相应的集结多属性群决策信息的方法。利用该方法较好地解决了方案优选问题中的一些难点,最后通过算例说明了方法的可行性和有效性。     

基于LOWA算子的方案优选问题研究

采用不确定语言型决策方法来解决方案优选等具有多属性的模糊决策问题,提出了基于LOWA算子的多属性决策方法,并利用该方法较好地解决了方案优选问题中的一些难点,为解决此类问题提供了一种很好的通用方法。     

基于Choquet模糊积分算子的多指标属性船型方案优选模型

船型方案排序及优选是一个多指标属性、多层次且指标属性相互关联的决策问题.考虑船型方案评价中各评价指标间存在的模糊性和相互关联性,利用模糊测度和Choquet模糊积分算子对船型方案进行优选.此方法的优点是考虑了方案各指标属性的关联关系,而且决策过程不用确定各指标属性的权重,减少了决策过程中决策者的主观臆断性,使排序结果更具客观性和科学性.计算实例说明:基于Choquet模糊积分方法建立的船舶方案优选模型正确,方法简单,结果合理,为船型方案选择提供了一种可靠的参考.     

DEA模型在含有Vague集的模糊多属性决策中的应用

现实中的不确定性处处存在,因此对模糊多属性决策问题的研究是十分必要的。Vague集同时考虑了隶属与非隶属两方面的信息,较全面地反映了决策方案和评价属性之间的相关性。当决策者无法给出对各属性的偏好时,就较难确定各属性的权重,这样就无法姣好地解决模糊多属性决策问题。由于利用DEA评价模型不需要提前给定各属性的权重值。因此为了更好地对决策方案进行评价,本文将DEA模型与Vague集相结合．利用DEA—C^2R模型给出了解决含有Vague集的模糊多属性决策问题的一种评价方法。     

含模糊数的 模糊多目标多人优选决策方法

多目标多人决策是一个重要的研究领域,目前已经提出了一些有效的决策方法。但对目标值和权重为模糊数的模糊多目标多人决策问题却研究得较少,本文对这类模糊多目标多人决策问题进行了探讨,利用相对正理想方案与相对负理想方案概念定义了相对差异距离,进而建立了模糊优选模型与方法,并通过战役决心方案的评价说明了该方法是可行、有效的,可作为军事决策与决策支持系统的备选方法。     

基于直觉模糊积分的多属性决策方法

为了研究多属性决策问题中决策属性间存在的关联因素对决策方案的综合评价问题,引入模糊测度的概念,给出直觉模糊积分的定义,并讨论其性质。在此基础上,提出了一个基于直觉模糊积分的多属性群决策方法,并通过实例分析验证了该方法的可行性和有效性。     

区间直觉联系指数势决策模型的研究

文章针对区间多属性决策问题指标和权重具有区间未确知特点,建立了区间多属性决策的直觉联系指数势模型。该模型基于直觉模糊集与联系数理论耦合方法,首先应用待选方案评价指标构成决策矩阵,通过规范化处理转换成直觉模糊评价矩阵,进而构建待选方案对最优方案的隶属度和非隶属度的线性规划求解模型,并应用单纯形法求解后转换为联系数,以计算联系指数势,确定最优方案。最后将模型应用于空调系统方案优选,以验证模型的可靠性和实用性。实例计算结果方案1~5的联系指数势分别为0.558 6、0.518 9、0.550 2、0.595 0、0.562 7,评价结果与MAEA法、可能度法和TOPSIS法的结果基本吻合,表明该模型应用于空调系统方案优选是有效可行的,能真实反映实际评价指标和权重的区间与未确知特点,并克服了传统区间多属性决策排序难的缺点,也为类似方案优选问题提供了新的参考。     

模糊多属性决策方法及其在模糊优选中的应用

从模糊多属性决策基本理论出发，给合方案优选的特点，运用三角模糊数，提出一种多属性模糊优选方法，建立了决策模型．该模型具有较好的通用性和可操作性．     

一种模糊多属性决策ELECTRE方法

为了简化传统决策的复杂运算,将结构元理论引入模糊多属性决策,模糊数的复杂运算转化为同序单调函数的运算。结果表明:将模糊结构元理论同经典ELECTRE方法结合用来解决模糊多属性决策问题,弥补了使用ELECTRE方法难以对模糊数进行排序、需要转换成确定系统的不足。这种方法对于研究模糊多属性决策问题具有一定的参考价值。     

层次分析法在农业决策方案优选中的应用

农业决策方案的优选属于多目标决策问题,由于用来评价目标的属性很多,且各属性的衡量标准不统一,给专家决策带来了很大的困难。本文将介绍层次分析法在求解此类问题中的应用。     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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     

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