基于C/S体系结构的贵州电力地理信息系统的开发

介绍了基于Ｃ／Ｓ体系结构的ＧＺＰＳＧＩＳ（贵州电力地理信息系统）的开发环境和开发技术,重点讨论了ＯＬＥ在ＧＺＰＳＧＩＳ中的应用。     

GIS应用体系结构发展演化及Web GIS实现方法与应用研究

ＷｅｂＧＩＳ俗称万维网地理信息系统,又有人称它为ＩｎｔｅｒｎｅｔＧＩＳ,是一种基于Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ的技术标准和通信协议的网络化地理信息系统,它系ＧＩＳ技术和Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ技术相结合的产物。一、ＧＩＳ系统技术应用体系结构的发展演化经过近４０年的发展,ＧＩＳ系统已从原来的带有学术研究性质的应用研究逐步走向服务于企业、服务于管理的社会化应用发展研究,并且已广泛应用于科研教育、社会生产、管理决策等各个层面和领域。与整个计算机技术发展过程相适应。近４０年来,ＧＩＳ系统…     

GIS在贵州的社会化进程及前景

地理信息系统（ＧＩＳ） 已经从传统的学术研究逐步走向现实世界，ＧＩＳ的原有环境是多部门、多学科和多领域的。为了满足许多复杂的应用要求，如城市规划、土地利用、环境保护、公共事业的管理、自然灾害的处理及一些国家级的信息系统，导致ＧＩＳ最终走向社会化。特别在贫穷落后的贵州，ＧＩＳ还是一个新事物，在面临地球数字化挑战的时代，科学和客观的分析并应用推广它，要实现这一新技术应用的“软着陆”是一个循序渐进、分布式的过程，使ＧＩＳ在贵州从项目水平阶段向社会化应用方向发展，其中ＧＩＳ的普及教育起着至关重要的作用。     

GIS在指挥自动化系统中的应用

首先分析了军事指挥中的图形应用，讨论了Ｃ＾３Ｉ系统中的态势显示问题，并根据ＧＩＳ原理，结合实例，在分析比较目前流行的各种ＧＩＳ平台的基础上，研究了军事指挥地理信息系统的设计方法和Ｃｌｉｅｎｔ／Ｓｅｒｖｅｒ环境下的数据组织形式，实现了Ｍａｐｉｎｆｏ与Ｏｒａｃｌｅ７在ＣＩ系统中的完美结合。     

地理信息系统发展动态及在水资源管理方面的应用

地理信息系统（ＧｅｏｇｒａｐｆｏｉｃＩｎｆｏｒｍａｔｉｏｎＳｙｓｔｅｍ，ＧＩＳ）具有高效的空间数据管理和灵活的空间数据综合分析能力，在国外得到了广泛应用，国内也正在研究和应用。本文在搜集和阅读大量国内外文献的基础上，综述了ＧＩＳ的发展动态及趋势，着重介绍了国内外ＧＩＳ在水资源管理方面的应用概况，并对ＧＩＳ在水资源管理中的应用作了展望。     

ARC／INFO^接受Surfer图文数据的实现

数据是地理信息系统应用的核心。现实世界的数据具有普遍的多样性,关于ＧＩＳ接受不同数据的研究已成为当前ＧＩＳ研究中的一个难点和热点。本文根据通用ＧＩＳ工具软件ＡＲＣ／ＩＮＦＯ接受外部空间数据的方式和图形分析软件Ｓｕｒｆｅｒ的数据格式特征,运用特定的处理方法实现了由Ｓｕｒｆｅｒ格式数据向ＡＲＣ／ＩＮＦＯ矢量格式数据的转换,使ＡＲＣ／ＩＮＦＯ接受外部数据格式的范围拓宽,数据处理能力增强。     

政府地理信息系统研究与典型应用

一、政府地理信息系统及其发展综述目前我国政府系统已经拥有政务、人事、经济及新闻等大量办公信息系统数据，这些信息中８５％是与空间定位信息有关的，因而客观要求一种办公自动化（ＯＡ）与地理信息系统（ＧＩＳ）融为一体的环境。政府地理信息系统（ＧＧＩＳ）就是随着ＧＩＳ在政府机关中的逐步引用而形成并且这种待殊的应用领域愈来愈广。从国务院和省政府机关逐步向县市级政府延伸，成了政府领导宏观决策不可缺少的工具和手段。１、政府地理信息系统特征ＧＧＩＳ是ＧＩＳ一个特殊应用领域，既有ＧＩＳ的一般特性，又有自身的明显特征…     

基于GIS的水电规划决策支持系统框架设计

分析了地理信息系统（ＧＩＳ）技术在水电规划专业中的适用性,以及基于ＧＩＳ的水电规划决定支持系统的优点。对基于ＧＩＳ的水电规划决策支持系统实现的技术路线和系统框架进行了设计。较详细地给出了水电规划各个环节中应用ＧＩＳ功能的方法。基于ＧＩＳ的水电规划决策支持系统在技术上是可行的。ＧＩＳ技术的庆用将使水电规划决策支持系统功能更完善,界面更友好,提供的决策支持信息更丰富。     

贵州电网地理信息系统的设计与开发机制

介绍了贵州电网地理信息系统的设计特点和开发机制，重点讨论了动态数据交换技术ＤＤＥ在ＧＺＰＳＧＩＳ中的应用。     

地理信息系统技术在我国的应用与存在的问题

一、地理信息系统技术概述地理信息系统（ＧｅｏｇｒａｐｈｉｃＩｎｆｏｒｍａｔｉｏｎＳｙｓｔｅｍｓ,缩写为ＧＩＳ）萌芽于２０世纪６０年代初 ,在１９７２年 ,世界上第一个地理信息系统———加拿大地理信息系统（ＣＧＩＳ）全面投入运行。此后 ,实际应用的需求以及计算机技术、空间技术等的飞速发展 ,促使地理信息系统技术迅猛地发展。到了２０世纪９０年代 ,地理信息系统技术在欧美等国进入了产业化时代 ,特别是９０年代以来 ,应用的驱动使得它得到了前所未有的发展 ,被广泛应用于许多领域。例如 ,美国约８５%的联邦机构和７万多个地方…     

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