异构计算系统的表调度式任务映射与调度算法

研究了在异构计算系统（ＨＣＳ）中利用表调度式算法进行任务映射与调度．给出两种异构静态优先级表调度式任务映射算法（ＨＳＰ和ＧＨＳＰ）,以及一种异构动态优先级表调度式任务映射算法（ＢＨＤＰ）．实验结果表明,ＧＨＳＰ算法对于粗中粒度ＤＡＧ的调度效果稍好于ＨＳＰ算法,而ＢＨＤＰ算法对于粗粒度和细粒度ＤＡＧ的调度效果均明显优于ＨＳＰ和ＧＨＳＰ算法．     

SDH中恢复四次群时钟的数字化预处理方法

同步数字系列（ＳＤＨ）中的指针调整引入了８ｂｉｔ或２４ｂｉｔ的大幅度抖动。为了处理这一抖动，提出了一种数字化处理方法——自适应预测法，可以作为预处理方法应用于ＳＤＨ中的四次群时钟恢复。该方法在一个统计周期内统计指针调整和码速调整的次数，并根据统计结果，在下一个周期内自适应地预测出四次群支路时钟。该时钟不含指针抖动，便于利用模拟锁相环进行最终处理，得到均匀的四次群时钟。从该方法的基本原理，以及对它的静态抖动和抖动转移性能分析中可知，相对于以往的减小指针抖动的方法，如比特泄漏法等，自适应预测法具有输出抖动小，抖动转移性能好，捕捉范围宽等特点。     

双交叉积A#σ上A及其辫化结构

设（Ａ,Ｈ,σ）是斜配对的,文章首先构造了双交叉积Ａ＃σＨ,特别地,Ｄｒｉｎｆｅｌ’ｄ偶Ｄ（Ｈ）就是这种双交叉积,即Ｄ（Ｈ）＝Ｈ＾＊ｃｏｐ＃σＨ,其中σ为赋值映射。其次,若一般双交叉积Ａα＃βＨ有辫子结构σ,则存在σ使得（Ａ,Ｈ,σ）是斜配对的,且Ａα＃βＨ＝Ａ＃αＨ。     

SONET和SDH系列的比较研究

为在工程实践中ＳＯＮＥＴ（同步光缆网）和ＳＤＨ（同步数字系列）设备的有效互通提供理论依据，本文在传输速率、复用结构、映射方式、开销字节等方面对ＳＯＮＥＴ和ＳＤＨ之间的差异作了比较和研究，结果表明，ＳＯＮＥＴ和ＳＤＨ虽是不相同的数字传输系列，但两者间是相互兼容可以互通的。     

几乎H连续映射

引进了几乎Ｈ连续映射的概念，讨论了几乎Ｈ连续映射的性质以及几乎Ｈ连续映射与连续、Ｈ连续、几乎连续、几乎Ｎ连续等映射的关系．     

准同步数字系列,同步数字系列,同步光纤网的技术比较及互通

作者首先从理论上对准同步数字系列，同步数字系列，同步光纤网作了技术比较，并对ＳＤＨ和ＳＯＮＥＴ在传输速度，复用结构，映射方式，开销比特等方面作了理论和比较和研究。     

SD大鼠胚胎及成年雌鼠乳酸脱氢酶同工酶谱和分布的研究

本文采用琼脂糖凝胶电泳方法，分析研究了ＳＤ大鼠胚胎及成年雌大鼠心、肾和肝组织的乳酸脱氢酶（ＬＤＨ）同工酶谱和分布。结果表明，大鼠胚胎期ＬＤＨ同工酶以ＬＤＨ５含量最高，ＬＤＨ１含量最低。其同工酶活性顺序为ＬＤＨ５〉ＬＤＨ４〉ＬＤＨ３〉ＬＤＨ２〉ＬＤＨ１。而成年雌大鼠心肌以ＬＤＨ２含量最高，ＬＤＨ１次之，ＬＤＨ５最低；其同工酶活性顺序为ＬＤＨ２〉ＬＤＨ１〉ＬＤＨ３〉ＬＤＨ４〉ＬＤＨ５；肾组织同工酶活性     

Scott Domain上的稳定映射与Lawson拓扑

研究了Ｓｃｏｔｔ Ｄｏｍａｉｎ上稳定映射的性主Ｓｃｏｔｔ Ｄｏｍａｉｎ上稳定映射与拓扑之间的联系，给出了Ｓｃｏｔｔ Ｄｏｍａｉｎ上稳定映射的特征定理，得到了Ｓｃｔｏｏ Ｄｏｍａｉｎ上的稳定映射下Ｌａｗｓｏｎ拓扑之间的关系定理。     

AF C*-代数上的Schur积与完全正映射

设Ｂ是作用在Ｈｉｌｂｅｒｔ空间Ｈ上的含单位元的ＡＦＣ＿代数,Ｄ是Ｂ的典型ｍａｓａ,Ｓ是Ｂ中的范数闭算子系统并且是ＣｈｏｒｄａｌＤ＿双模,则任给Ｓ中正元ｇ,存在完全正映射ψｇ：Ｂ→Ｂ（Ｈ）使得任给ｆ∈Ｓ,ψｇ（ｆ）＝ｇｆ,其中ｆｇ是ｇ与ｆ的Ｓｃｈｕｒ积．     

Scott Domain上的稳定映射与Lawson拓扑

研究了 Ｓｃｏｔｔ Ｄｏｍ ａｉｎ 上稳定映射的性质及 Ｓｃｏｔｔ Ｄｏｍ ａｉｎ 上稳定映射与下拓扑之间的联系,给出了 Ｓｃｏｔｔ Ｄｏｍ ａｉｎ 上稳定映射的特征定理,得到了 Ｓｃｏｔｔ Ｄｏｍ ａｉｎ上的稳定映射与 Ｌａｗ ｓｏｎ 拓扑之间的关系定理     

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.     

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     

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

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