沿海地区大气透过率的特征分析

利用LOWTRAN7大气辐射计算模式，对2个红外通道分别选取不同的模式大气进行计算，得到了各种模式大气的大气透过率。利用沿海地区的历史资料初步分析了沿海区域模式大气，计算了沿海地区的大气透过率，并讨论了整体、细致边界层方案的模式计算值，得出一些有意义的结论。     

利用遗传算法求大气压强精确公式

利用有关文献提供的大气在1－11km对流层的大气压强实测数据，运用遗传算法反演精确计算出由多态方程推导大气压强公式中的大气比热比γ，从而给出计算大气压强的精确公式，其计算值与实测值非常吻合，并与文献给出的大气压强公式进行了比较，结果表明，用遗传算法所确定的大气压强精确公式更准确，说明遗传算法在反演问题中具有很高的应用价值。     

边界层气象要素垂直廓线的数值计算

借助于湍流能量方程和湍流耗散率方程，用方程组闭合的方法，建立了大气边界层模式。采用单点常规的气象观测资料，计算了大气边界层内外特征参数和气象要素的垂直廓线，再现了边界层的结构特征，计算结果与系留探空观测比较，廓线的变化趋势基本一致。     

开发区区域大气和水环境容量的计算及管理

介绍了开发区大气、水环境容量计算及管理方法，并以湖南城陵矶经济技术开发区为例，初步了方法的具体应用和有关细节处理，所介绍的方法将对其他类似开发区大气、水环境容量的计算及管理起到一定的借鉴和指导作用。     

焦作城市大气SO2污染源解析及空间分析

建立了适合于焦作市城区大气SO2污染的解析模型，利用该模式计算了1996-2000年焦作市城区大气中的SO2体积质量和主要污染源的体积质量贡献，结合GIS技术对该区的大气SO2污染进行了空间分析，绘制了大气SO2体积质量等值线图和焦作市大气SO2污染分区评价图，为环境管理部门提高管理水平和管理效率提供参考。     

大气混合层厚度的计算方法及影响因子

本文讲述了大气混合层厚度的定义及它在大气环境保护中的作用。论述了大气混合层厚度的多种计算方法如国标法、干绝热法、罗氏法等，并分析了大气混合层厚度的各种影响因子。其中大气稳定度是决定混合层厚度的最主要因子。     

不同下垫面热通量和水汽通量的数值计算

发展了一个裸露土壤的参数化数值计算方法，检验了土壤物理参数对土壤－大气界面热通量和水汽通量计算的敏感性。结果表明，土壤工是最重要的土壤特征参数，它直接控制着地表和大气之间水，热通量的输送强度和热量平衡。     

宇宙背景辐射下太阳电磁辐射

宇宙中存在着温度为3K的背景辐射，故在宇宙中太阳的电磁辐射不会无穷远。利用字宙学的结果计算了微波背景辐射下太阳辐射的射程，并与地球大气中的情况做了比较。计算表明，宇宙中的辐射距离大约是地球大气中辐射距离的1亿倍。     

武清区燃煤污染分析及治理方案的研究

以2003年度天津武清区燃煤大气污染源(未包括电厂)为调查对象(分为采暖期和非采暖期两套数据)．课题建立了天津武清区基于燃煤污染的大气污染源排放清单数据库，通过大气扩散模型计算分析了各类污染源排放大气污染物的浓度时空分布特征，并模拟了不同的空气污染控制对策的环境效益，为空气污染治理提供了科学依据．     

高空核爆炸对无线电波传播的影响

分析了高空核爆炸释放出的各种辐射射线，粒子在大气中的传输情况，讨论了各种射线成附加电离的物理机制及相应源的临界高度，给出了瞬发和缓发核辐射在大气中产生电离的计算公式，计算了核爆炸产生的电子密度的时空分布并讨论了其分布特性，最后计算了附加电离区对短波信号的吸收情况。     

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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