结构动力分析显式积分并行算法与实现

在分布式并行计算机环境下开展有限元并行算法研究是计算力学领域的前沿课题之一。基于区域分裂法，提出了结构动力分析两种形式的显式积分法的并行算法及步骤；同时，在用Ｔｒａｎｓｐｕｔｅｒ组成的分布式ＭＩＭＤ并行计算机上，采用３Ｌ并行Ｆｏｒｔｒａｎ编写了计算程序，并将其移植到串并行混合有限元分析软件ＰＦＥＭ中；最后，通过对三维空间钢架结构的实际分析，不仅验证了算法和程序设计的正确性，而且结果表明算法具有较高的并行效率。当２个和３个ＣＰＵ工作时，并行效率分别为０．８和０．７。     

结构动力分析显隐式混合积分并行算法及实现

在分布式并行计算机环境下开展有限元并行算法研究是计算力学领域的前沿课题之一。基于区域分裂法,提出了一种新的结构动力分析的显－隐式混合积分并行算法,给出了其算法执行过程,并从物理直观意义上解释了该算法的设计思想,指出了其本质是一种单元弱耦合的混合积分算法。同时在网络并行计算机群系统上,基于并行平台（ＰＶＭ）设计了算法程序。最后,通过数值算例证明了该算法的可靠性和有效性,并指出了进一步提高并行效率的关键是如何合理确定隐式积分区域单元数目     

在WFW网络下的动态数据变换

本文介绍在ＭｉｃｒｏｓｏｆｔＷＩＮＤＯＷＳＦＯＲＷＯＲＫＲＯＵＰＳ３．１（以下简称ＷＦＷ）网络环境下用ＭｉｃｒｏｓｏｆｔＶＩＳＵＡＬＢＡＳＩＣ３．０（以下简称ＶＢ３．０）实现不同计算机之间动态数据交换的方法，并给出了主要程序     

区域分解法解黑油数值模拟问题的并行计算

区域分解方法是适应并行计算机的工作原理应运而生的偏微分方程数值算法,将它应用于解决三维实际问题且行之有效的并行软件并不多见．本文基于共享内存多处理机并行系统解决一类三维黑油油藏数值模拟问题,分别给出了子结构类型ＤＤＭ和Ｓｃｈｗａｒｚ类型ＤＤＭ两种区域分解方法的并行算法,并进行了比较,就它们在实际应用中的区域划分对收敛速度及计算时间的影响进行了讨论     

Eu_（1－x）Sr_xFeO_（3－y）的~（57）Fe Mossbauer谱

报导Ｅｕ＿（１－ｘ）Ｓｒ＿ｘＦｅＯ＿（３－ｙ）（ｘ＝０．０～１．０）的固相反应法合成，测量了其Ｘ射线衍射及室温下的￣５７ＦｅＭｏｓｓｂａｕｅｒ谱。实验结果表明，Ｓｒ掺入了ＥｕＦｅＯ＿３晶格，结构变化与掺杂量密切相关。室温下￣５７ＦｅＭｏｓｓｂａｕｅｒ谱由一套反铁磁六线谱、一套顺磁双线谱和一套顺磁单线谱组成（Ｘ＝０．２，０．４，０．６）．处于立方相的Ｆｅ离子的ＩＳ介于Ｆｅ￣３＋和Ｆｅ￣４＋之间，可能参与电子跳跃。     

~（16）O区域原子核的双粒子能谱

采用Ｍ－３Ｙ力作为等效Ｇ－矩阵，用格林函数方法计算了１６Ｏ区域原子核１８Ｏ、１８Ｆ的能谱．计算结果与实验能谱符合较好．从而表明，采用Ｍ－３Ｙ力等效Ｇ－矩阵元，用格林函数方法计算１ｓ－０ｄ壳核能谱是十分有效的     

SMA同轴封装高速光电探测器

采用自制ＳＭＡ同轴管壳和普通ＴＯ－１８管过对同型同批的ＩｎＧａＡｓＰＩＮ光电探测器芯片进行了封装并用自建测试系统对其Ｃ－Ｖ特性进行了测试比较，结果表明：与普通ＴＯ－１８管壳封装相比，ＳＭＡ同轴管壳封装器件电容减少～０．４ｐＦ，上升时间ｔｒ由８５ｐｓ减至２５ｐｓ以下，半高全宽ＦＷＨＭ由２１０ｐｓ减至８５ｐｓ，等效－３ｄＢ带宽增至６ＧＨｚ以上，瞬态特性显著改善。     

部分取代苯定量结构-生物降解相关性(QSBR)研究

采用Ｃｈｅｍｓ３Ｄ中量子化学ＭＯＰＡＣ－ＡＭ１法计算了７种间苯胺类和８地苯酚的分子量高占有轨道能ＥＨＯＭＯ、分子最低空轨道能ＥＬＵＭＯ。用ＱＳＡＲ程序软件包查得分子体积Ｖｍ。结合分子连接性指数（＾３Ｘ,＾３Ｘ＾ｖ）对生物降解二级速率常数对数ｌｇＫｂ进行定量结构－生物降解相关性（ＱＳＢＲ）分析,通过回归分析,得到如下两个回归方程：ｌｇＫｂ＝－０．８３２－０．１１８Ｖｍ＋１．７４８＾３Ｘ＾ｖ,ｎ＝１５,Ｒ＾２＝０．８３２,ＳＥ＝０．５７７,Ｆ＝２９．７,ｐ＝０．０００。（１）ｌｇＫｂ＝０．１２４Ｖｍ＋１．７４９＾３Ｘ＾ｖ,ｎ＝１５,Ｒ＾２＝０．９９８,ＳＥ＝０．５５９１,Ｆ＝４１４８．９９,ｐ＝０．０００．（２）     

厚度对Fe－3％Si二次再结晶的影响

厚度对Ｆｅ－３％Ｓｉ二次再结晶的影响最近日本的研究员以Ｍ；Ｉｓ和ＡＩＮ作为抑制剂研究了最终厚度（０．６０～０．１８ｕｒｎ）对Ｆｅ～３％Ｓｔ二次再结晶的影响。他们发现，当０．６０ｎｌｍ厚的试样于终退火时在氢气中进行加热时，会发生完全的二次再结晶，但主〕...     

基于 Client/Server 工艺数据管理

提出了一种基于ＶｉｓｕａｌＦｏｘＰｒｏ３．０客户／服务器的工艺数据管理方法，论述了利用ＶＦＰ３．０最新的数据库技术对工艺数据进行组织、管理，以及利用事务处理机制实现工艺数据安全恢复等方面的关键技术．介绍了工艺数据库管理系统（ＰＤＢＭＳ）的系统结构．     

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