微波遥感在洪水探测中的应用研究

利用BEST软件,对ASAR雷达数据进行洪水区的快速提取,并利用开源的GRASS GIS和QGIS软件对提取结果进行再处理,最后进行相应的空间分析,最终得到了ASAR雷达数据的处理流程图。     

基于RS和GIS的南京市区生态绿地现状分析

基于ETM和SPOT图像，采用ERDAS和ARCGIS软件，对原始数据进行几何纠正、假彩色合成等一系列预处理。然后对图像进行监督分类、绿地信息提取，并运用景观软件对南京市区的生态绿地现状进行分析。研究表明：南京市区的绿地率较高，但是分布不均匀。     

拱塔斜拉桥索塔锚固区应力分析

文章以某拱塔斜拉桥为研究对象,运用有限元分析软件ANSYS对其索塔锚固区进行空间应力分析;通过索塔锚固区不同工况下的应力分析,总结了锚固区应力分布特性,并研究了锚固区应力在索力及预应力单独作用时沿高度方向的衰减情况,为相关设计给出了相应的建议.     

某深切峡谷地应力场空间分布特征研究

运用三维线弹性有限元软件(3D-σ)模拟了某深切河谷地应力场的形成演化过程，从而得到了研究区的现今地应力场，并对研究区地应力场的空间分布特征进行了分析和讨论，最后提出了地下厂房分析设计的地应力建议值，并对其岩爆可能性进行了评价。     

超限高层建筑的结构设计

本文以上海地区某超限高层住宅剪力墙结构为例,采用SATWE和PMSAP两种不同结构设计软件进行设计计算后,并对主要计算结果进行了分析与对比,提出了一些个人看法.     

基于NS_2的无线个人区域网仿真

文章介绍了个人无线区域网(WPAN)和功能强大的网络仿真软件NS_2,分析了NS_2的体系结构和功能,重点讨论了如何使用NS_2进行无线个人区域网仿真,并利用追踪文件来分析仿真结果。     

MAPGIS在广东某稀土矿靶区圈定与成矿预测中的应用

近年来随着GIS软件的普及推广,GIS在地质工作特别是在资源勘查中发挥着越来越重要的作用,可以借助GIS强大的空间分析技术,以计算机为辅助工具,对矿山探矿范围内进行靶区圈定与成矿预测研究。MAPGIS在空间分析方面提供了强大的空间分析模块——DTM分析。笔者以广东某稀土矿为例,采用MAPGIS软件,利用其DTM功能,从建立矿化强度模型入手,对普查区范围进行了靶区圈定和成矿预测研究。文章认为：运用GIS的空间分析技术进行成矿预测和靶区圈定是今后几年内进行资源勘查研究的一个重要发展方向。     

基于实验语音学的甘肃学生英语语音偏误分析

简单概述了甘肃方言的基本语音特点,以语音学及实验语音学理论为指导,利用Praat语音分析软件对甘肃方言区学生的英语发音问题进行了分析研究,并就对如何提高方言区学生的英语发音能力提出了一些建议。     

定位于鸡选择性清扫区域的SH3RF2基因生物信息学分析

为了解鸡SH3RF2基因的结构与功能,由NCBI数据库获得鸡SH3RF2基因的mRNA和氨基酸序列数据信息,利用NCBI/Blast软件进行序列分析、同源性比对确定鸡SH3RF2基因的3’UTR区序列。在此基础上,利用公共数据库和相关软件对SH3RF2基因的CDS(coding sequence)区和其3’UTR(untranslated region)区进行了MicroRNA靶标的预测分析,进一步利用生物信息学相关数据库对其蛋白理化性质和一级结构进行分析,模拟了其二级结构和空间结构并构建了SH3RF2蛋白的系统进化树。     

太原市大气能见度研究

针对太原市区2015年4月—2016年3月期间大气能见度、常规气象资料(温度、相对湿度、风速)、环境空气污染因子(PM_(2.5)、SO_2、NO_2)等影响因子,采用IBM SPSS Statistics 20统计分析软件,对太原市区大气能见度变化及其影响因素进行统计和相关性分析,归纳总结出了太原市区大气能见度的主要影响因素和变化规律,并提出了改善太原市区大气能见度的应对措施。     

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     

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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