对多目标线性规划的λ－算法的修正

本文指出运用多目标线性规划λ－算法在某些情况下会得出错误的结果，分析了发生错误的原因，并给出修正的λ－算法．     

芳核的芳香性与光谱参数的关系

探讨了芳香族化合物的芳香性与其ＵＶ－光谱和Ｈ－ＮＭＲ谱参数的一致性关系，用λ和Δδｍａｘ值的判断化合物的芳香性是一方便的方法。     

一类非线性二阶半正周期问题正解的存在性

本文研究了非线性二阶半正周期问题■正解的存在性，其中λ为正参数，a:■:■均为连续函数，ω是[0, 1]上的连续函数且|ω(t)|≤k,f:■为连续函数且满足■.运用锥上不动点定理证明了：存在常数λ_*>0,使得对于λ∈(0,λ_*),该问题至少有一个正解.     

指纹形态结构的分形矩阵分类法

根据指纹的不同形态结构，运用分形理论对其识别，通过求取指纹的分形矩阵，计算矩阵的本征值λ和迹等特征，由λ值的性质和迹的大小，将指纹分成弧，帐，箕，斗，杂等８类。     

一个推广的Hilbert型积分不等式

通过引入独立参数λ1,λ2,v1,v2,建立一个新的具有最佳常数因子的混合核为ln(xλ1/yλ2)/(max{xλ1,yλ2})λ(λ0)的Hilbert型积分不等式的推广。作为运用,建立了它的等价形式、逆向情形及特殊结果.     

一类半无穷区间问题非负解的存在性

把边值问题转化成相应的算子方程，运用拓扑理论、非线性更替定理得出：如果有限区间上带参数λ(其中λ∈0.1))的边值问题的解一致有界，那么当λ=1时该问题也存在解．通过考察非线性项f(t，y)的性质，结合Lebesgue控制收敛定理、对角化原理和Arzela—Ascoil定理研究了奇异半无穷区间问题，并给出半无穷区间边值问题非负解存在的充分条件。     

比色法测定市售大山楂丸中总黄酮的含量

采用以槲皮素为对照品，比色法测定大山楂丸中总黄酮的含量（λmax=510nm）。绘制了标准曲线并做了线性方程回归，测得含量为2．63％。此测定方法结果准确，操作方便，重复性好，可作为大山楂丸中总黄酮物质含量测定方法。     

定时截尾试验下可靠性的经验Bayes估计

讨论定时截尾试验下可靠性的经验Bayes估计,给出了失效率λ的EB估计和近似区间估计。该方法简单方便。     

一个图的图设计(Ⅰ)

λKv是λ重v点完全图,对于有限简单图G，所谓的图设计G—GDλ(v)是一个序偶(X，B)，其中X是Kv的顶点集，而区组集V为λKv的全部边的一种分拆，其每个成员(区组)都是与G同构的子图．运用“差方法”、“带洞图设计”等工具，结合一系列小设计的构作，对一个6点9边图H的图设计进行了讨论，并证明了：存在H-GD(v)←→v≡0，1(mod9)且v≠9．     

模糊集合的一个新的分解定理

给出了用论域Ｚ的若干经典子集的交来表示模糊集合Ａ↓～的定义，证明了Ａ↓～＝∩↓λ∈〔０，１〕（λｏＡλ），Ａ↓～＝∩↓λ∈〔０，１〕（λｏＡλ），Ａ↓～＝∩↓λ∈〔０，１〕（λｏＨ（λ））。     

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.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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