次数分别为81和82的对称群的OD-刻画

利用群的阶和群的素图度数序列分别刻画次数为81和82的对称群,证明对称群S81和S82均可3-重OD-刻画的.值得指出的是,该结论对文献(Y.X.Yan,G.Y.Chen,L.C.Zhang,et al.Chinese Annals Math.,2013,34:777-790.)中提出的公开问题给予肯定的回答.     

药用砂仁的解剖研究

本文对药用砂仁的原植物(砂仁Amomum villosum Lour.,海南砂仁A.longiligulareT.L.Wu和缩砂密A.villosum Lour.var Xanthioides T.L.Wu & Senjen)及混淆品(长序砂仁 A.thyrsoideum Gagnep.和疣果豆蔻 A.muricarpum Elm.)作了较详细的解剖研究,发现上述正品和混淆品两大类,既有同属植物的共同特点,也有比较明显的鉴别特征,这两大类分别归属草果亚属和豆蔻亚属,因此也可为两属的划分提供解剖学上的依据.     

基于SQLDMO的数据库备份与恢复的实现

介绍了数据库备份与恢复的基本方法,特别是封装数据库操作的作用.以SQL Server2000为例,在ASP.NET(C#语言)环境下实现了基于SQLDMO的数据库备份和还原.分析了备份和还原的几种方法、选择策略和SQLDMO的功能.详细给出了备份和还原的具体思路和类实现,存储过程和游标在还原中的应用.     

基于XML的ASP.NET的开发与应用

简要介绍了XML语言的基本概念和主要优点及ASP.NET平台.在此基础上重点介绍了XML的用途、文件结构,以及基于ASP.NET的开发模式.详细介绍了采用ASP.NET中的类来转换、显示XML文档和利用ADO.NET对关系数据库中数据和XML数据相互转换,从而提高应用程序的效率和应用范围.最后总结了XML在企业系统改造应用中的优势,并展望了XML应用于Web的发展前景.     

某些图论问题的进展

在Bondy,Murty编著的“Graph Theory With Applications”一书的附录Ⅳ中,搜集了图论中五十个尚未解决的问题。本文介绍其中某些问题的进展和主要参考文献。文中涉及的术语和符号参见该书的中译本“图论及其应用”(吴望名等译)。问题1.重构猜想和边重构猜想(Ulam1929;Harary 1964) 参考:C.St.J A.Nash-Williams,The Restruction Problem,in Selected Topics in Graph Theory 1(eds.L.W.Beineke,R.J.Milson),Apademic press, 1978,205—236. J.A.Bondy,R.L.Hemminger,J.G.T.1(1977)227—268. 1983年,Bondy在他和Hemminger的文章基础上,重写了题为“The Reconstruction of Graphs”的综合性文章,补充了许多新的内容。     

《封神演义》英译本的语言层面的研究——词汇的研究

《封神演义》又名《封神榜》,是神魔小说中的瑰宝.以姜子牙辅佐周朝(周文王、周武王)讨伐商纣的历史为背景.包含了大量民间传说和神话.以其巨大的篇幅和奇特的幻想闻名于世.曾经被翻译成多种语言.据传是明朝时期的道士许仲琳所编写的长篇章回体小说.本文选取《封神演义》的一个英译本,新世界出版社在2000年出版的顾执中的译本,依据归化和异化理论,从语言方面对此译本进行研究.     

特征和的Vinogradov不等式的进一步改进

利用Todd Cochrane和J.C.Peral关于某一三角和的上界估计,结合特征和的估计方法,本文给出了特征和的Vinogradov不等式更好的结果.     

烟台海域发光细菌的分离鉴定

在烟台黄海海域所捕获的鱼的内脏和体表分离得到27株海洋发光细菌,经生理、营养和形态学的特性鉴定为三个种:Photobacterium Phosphoreum, Vibrio orientalis和V.splendidus biotype Ⅰ.其主要表型特征和已报道的相一致.根据文献,V.splendidus biotype Ⅰ属世界罕见,至今它是我国分离成功的第二株,V.prientalis,和V.splendidus biotype Ⅰ,此外,实验证明分布于整个黄海.     

厌学的学生

现在的中学有相当一部分学生很难教,教师用尽办法教,而学生都学不好,甚至不学.这些学生听课不专心,搞小动作,不做、不交作业,测验考试成绩很差.家长和学生认为是学校和教师的责任.学校和教师却认为是家长和社会环境造成的后果.……     

科技论文的特点

科技论文有如下特点: 1.学术性.它侧重于对事物进行抽象的概括的叙述和论证,基本内容不是客观事物的外部直观形态和过程,而是事物发展的内在本质和发展变化的规律,它致力表现事物的发生、发展和变化的规律性. 2.创造性.这是衡量科技论文价值的根本标志.论文总结的科研工作,不应该简单重     

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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