基于模糊物元分析原理的区域生态环境评价

基于生态环境质量概念的模糊性和评价指标的不相容性,在模糊物元分析的基础上,结合模糊集理论和欧氏贴近度概念,建立了区域生态环境评价的模糊物元模型。实例研究中,待评样本与评价等级看作是物元的事物,以各评价指标及其相应的模糊量值构造复合模糊物元,通过计算与标准模糊物元之间的欧氏贴近度值,实现待评样本生态环境质量状况的识别和排序。研究结果表明,运用模糊物元模型评价区域生态环境质量状况,其方法是可行的,结论是可靠的,从而为区域(或流域)生态环境评价提供了一种新方法。     

模糊物元分析的电动汽车城市充电站规划

为了解决充电站选址决策的多准则、不相容问题,研究了一种基于模糊物元分析理论的多方案、多特征的电动汽车城市充电站选址决策方法,构建了充电站选址决策评价指标体系并确定了各指标的权重。通过建立多个充电站备选点的多维复合模糊物元矩阵,经关联变换将电动汽车充电站选址由不相容问题转化为相容问题,以实现对多个充电站备选点的优选。实例分析表明:针对4个备选点确定5个评价指标值,通过模糊物元分析得到备选点2的关联度最高,为8.625。     

高校教师教学能力评价模型的构建及其哲学反思

高校教师教学能力往往用于管理的评价和资质的认定,引导着教师教学实践.国内研究者从心理学角度界定高校教师能力--在实践中发展起来的、反映了教师职业活动要求的能力体系.该描述强调了外延性描述,在其内涵、结构和外延性之间缺少解释环节,内涵模糊的外延不可能体现出高校教师教学能力.笔者以教师专业意识和责任意识作为教师教学能力理论模型的出发点,在文献[4]的基础上提出了高校教师教学能力理论模型,并在该理论模型基础上提出了其哲学反思,该反思促进了高校教师专业化发展,增加教书先育人的责任使命感,是高校教师教学专业可持续发展的必然要求.     

物元综合评判模型在区域大气环境质量评价中的应用

为了探索物元分析的综合评判模型在区域大气环境质量评价中应用的可行性 ,本文建立了评判大气环境质量的物元经典域和节域 ,把每个监测点环境质量做为待评事物 ,计算待评事物与经典事物的关联度 ,对监测点所属的区域环境质量进行评价。实例表明 ,物元综合评判模型用于区域大气环境质量评价是可行的。该方法具有计算简便 ,易于推广 ,便于计算机编程等优点     

高校教师课堂教学效果评估模型研究

高校教师课堂教学效果评估是一项非常有意义的工作,它为高校识别自身教学水平、增强教学能力、提高教师教学水平起着重要作用。本文合理构建高校课堂教学效果评价体系,应用层次分析法(AHP)的思想,合理简化其步骤,方便快捷地计算评价对象的权重,并运用模糊综合评价法构建了评估模型。模型具有较高的分辨率,合乎客观实际。     

轻亚粘土地震液化等级的多指标可拓综合评判

为更好地解决轻亚粘土地震液化等级评判中评价指标间的不相容问题,基于可拓学理论建立轻亚粘土地震液化等级的多指标综合评判方法:依据现场调查的历史数据和经验总结,划分轻亚粘土的地震液化等级,并建立含有影响轻亚粘土地震液化等级的各评价指标的经典域和节域矩阵,将待评轻亚粘土土样具体量值构成的待评物元代入可拓集合中进行多指标综合评判,通过计算和比较待评轻亚粘土土样与各地震液化评判等级的关联度大小来确定其评判等级。工程应用结果表明,基于物元理论和可拓集合理论进行轻亚粘土地震液化等级的综合评判,既可以从定性和定量角度评判液化等级,也能够较为客观地反映各评价指标对评判结果的贡献权值。     

浅论高校教师课堂教学质量评价体系的优化——以福建某独立学院为例

该文结合目前高校教师教学质量评价现状,分析了高校在课堂教学质量评价体系中可实施的优化研究工作。文章提出将单一、结果性的教学评价改为为过程导向性、客观的评价,从学生评教、同行教师评教、系主任评教、督导教师评教、教学管理部门评教等方面完善高校教学质量监控体系,从中发现问题,改进工作,促进高校教学质量的提高。     

高校课堂教学质量动态双向评价模型研究

随着高校计算机辅助教学的广泛应用,教学方法和教学模式出现了多元化.要客观公正地评价高校教师的课堂教学质量很大程度上取决于评价模型,因此给出了教学质量动态双向模糊评价模型的设计思想.模型以模糊数学为理论基础,采用双向自适应算法,应用了数据库技术,旨在使评价结果更具有可行性和科学性.同时开展了一定范围的应用研究,并给出了应用实例.     

课堂教学质量的模糊物元评价模型

在模糊物元分析的基础上,结合欧氏贴近度概念,建立了基于欧氏贴近度的模糊物元分析模型,并用之于课堂教学质量的评价。结果表明,该方法是合理的、可靠的。     

基于物元分析的城市综合体建筑火灾风险评价研究

为准确评价城市综合体建筑火灾风险等级,考虑到火灾风险影响因素的复杂性和不相容性,提出一种基于组合权和物元分析理论的城市综合体建筑火灾风险评价方法.首先,根据综合体建筑火灾特点与灾害机理,按人—机—料—法—环5要素确定评价指标体系,采用层次分析法(AHP)和熵权法计算指标组合权重;其次,针对评价的模糊性和不确定性,通过物元变换建立评价的物元体系,即确定火灾风险评价的经典域、节域和待评物元,通过计算等级贴近度确定综合体建筑火灾风险等级;最后,以武汉市某大型综合体为例,按照该方法确定该建筑火灾风险等级.结果表明,该综合体建筑火灾风险为安全,符合实际情况;与用于一般建筑火灾风险的其他评价方法相比,更为准确客观、简便易行.     

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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