状态空间精细法计算弹性地基板的动力响应

采用状态空间精细法计算弹性地基板的动力响应量。对空间域采用有限元计算，对时间域采用状态空间精细法。在计算过程中，不解线性方程组，直接进行精细迭代计算，程序简单，效率高。给出２个数值算例，对数值结果与直接积分法进行了比较，其计算结果比较接近。     

西气东输第七标段管线工程穿越河沟洪水冲刷计算探讨

通过分析研究，对西气东输天然气管道第七标段(临汾-郑州)穿越河沟设计洪水冲刷深度采用64-1公式、毛氏公式及河床演变公式进行计算比较，认为在一般情况下冲深采用毛氏公式成果比较合理，安全且经济，应予推荐采用。     

结构动力计算的半开卷考试

本文认为，结构力学的结构动力计算一章公式很多，完全采用阅卷考试不太适宜，采用开卷考试也有弊端，而采用半开卷考试比较适宜，即在考卷中同时给出部分公式，供考生选用．     

《谈艺录》论宋诗

钱先生在论宋诗时，采用了比较的方法，有同时代人的横向比较，也有不同时代人的纵向比较。梅尧臣与孟郊比：“未宜等齐称”；后山与山谷：同属江西派；杨万里与陆游比较：杨诗艺术超过陆，陆诗思想超过杨。     

烯烃稳定性比较方法的讨论

烯烃稳定性比较方法的讨论唐宗礼（贵阳师专化学系贵阳５５０００８）烯烃的稳定性在有机化学中是一个重要的概念，一般采用氢化热数据进行比较，也可用生成热比较［１］。但对某些烯烃异构体，两种方法比较得出不同结论，如异丁烯与反－２－丁烯的比较。两种比较方法有何...     

《粘度法测定高聚物分子量》实验数据处理方法探讨

数据处理能力是分析问题、解决问题的基础。该文具体讨论《粘度法测定高聚物分子量》实验数据处理方法。通过采用线性拟合与采用非线性拟合的理论分析比较，以及与误差理论简单分析比较，可以断定采用线性拟合方法处理《物理化学实验》数据有直观、准确等特点，能更好地解释实验数据规律，能够提高学生数据处理能力和分析问题的能力。     

面向成人教育学院教学档案管理系统的设计与实现

基于C／S与B／S技术，结合高等院校成人教育学院教学档案管理系统的设计与实现，探讨了管理信息系统的开发模式、实现技术和软件特点，特别是需求变化比较大的情况下，管理信息系统的实现机制和数据获取技术。对需求相对稳进的常规数据处理事务，采用C／S技术实现；而对动态发生的一些事务，则采用数据获取技术予以解决，而对远程事务，采用B／S技术比较方便。     

一种新的盲自适应频移滤波器

介绍了基于谱相关理论的频移滤波器，在此基础上提出了采用两种自适应算法的FRESH滤波器：LMS算法和CMA算法，并通过计算机仿真比较了两种算法的性能．结果表明，采用CMA算法的FRESH滤波器不需要训练序列，在性能上比较接近于传统的LMS算法，是一种实用的FRESH滤波器．     

瞬时电流比较型逆变器的研究

介绍了一种交流永磁同步电机电流控制方案。该方案采用改进电流比较方式，通过电流信号的比较，电压矢量的限定，选取电压矢量，该系统具有结构简单，响应速度快，谐波小的特点。     

房屋增层改造的设计探讨

对房屋增层改造采用整体式外套框架与分离式外套框架进行了方案比较，结果表明，采用整体式外套框架结构方案更经济，且有较好的可靠性和实用性。     

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     

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