浅谈组件式GIS

组件式地理信息系统（ComGIS）是适应软件组件化潮流的新一代地理信息系统。本文阐述了组件式GIS发展的几个阶段,指出组件式GIS的特点和结构,并简要介绍了MapInfo公司的组件式GIS：MapX;最后分析了基于COM技术的组件式GIS的不足以及组件式GIS的发展趋势。     

基于ArcEngine的滁州市公交线路查询系统的开发与研究

随着计算机技术和地理信息系统的发展,以GIS为媒介开发相关的查询系统已在诸多领域得以广泛应用。在公交查询系统设计方面结合ArcEngine技术,具有很大的实用价值。当前主流公交查询系统大多都以互联网为媒介,对于脱机工作的公交查询系统普遍较少,给一些非联网用户带来不同程度上的不便。因此结合滁州市公交查询系统实际需要,同时明确公交查询系统的数据库设计方案以及所需实现的系统功能,以ArcEngine为开发设计平台,设计开发出适合大众需求的桌面版公交查询系统。在基于ArcEngine的滁州市公交查询系统站点信息查询模块中,实现模糊查询,以及查询信息与地图的紧密结合,使查询结果更加清晰明了,从而实现人、车、路紧密配合,和谐统一,大大改善了交通环境。     

MapObjects在城市数字化建设中的应用

组件式地理信息系统是适应软件组件化潮流的新一代地理信息系统。Mapobjects是ESRI公司提供的的一组供GIS应用开发人员使用的制图与GIS功能ActiveX组件,是一个功能强大、使用方便的GIS快速开发工具。本文针对几个实际的数字化工作中的应用开发方向,研究使用Mapobjects进行GIS二次开发推进城市数字化建设的方法。     

COM技术在GIS中的应用

地理信息科学的发展对GIS平台和GIS应用提出了更高、更新的要求,ComGIS和WebGIS于是应运而生.本文结合ComGIS和WebGIS,简要介绍了ComGIS和WebGIS的基本原理,讨论了COM/DCOM技术在GIS平台和GIS系统中的应用,并给出基于MaPInfo的COM组件开发实例.     

COM技术在GIS中的应用

地理信息科学的发展对GIS平台和GIS应用提出了更高、更新的要求,ComGIS和WebGIS于是应运而生。本文结合ComGIS和WebGIS,简要介绍了ComGIS和WebGIS的基本原理,讨论了COM／DCOM技术在GIS平台和GIS系统中的应用,并给出基于MapInfo的COM组件开发实例。     

基于GIS的公交换乘管理系统开发与研究

通过采用BorlandC Builder软件与TOPMap控件,开发制作了武汉城市公交换乘管理系统,并阐述了对城市地理信息系统的开发与应用的看法.     

基于移动通信终端的公交查询系统实现

随着3G的日益临近,基于手机等移动通信终端的应用需求会越来越迫切,应用系统将会越来越丰富。本文探讨了一种运用J2ME技术和RMS数据库并采用模糊查询算法开发基于移动通信终端的公交查询系统的实现方案。     

浅析基于GIS的安全保障型城市建设

从地理信息系统(GIS)应用于安全保障型城市的研究背景入手,对国内外GIS应用于城市公共安全现状和进展情况进行了分析,在安全保障型城市建设需求的基础上,分析了GIS系统在其建设过程中的功能,并提出了基于GIS的长治市安全保障型城市建设系统的设计开发、架构与功能模块。     

TOD发展模式的内涵解析和若干关键思考

公共交通导向的开发（TOD）模式是提高资源利用效率和交通节能减排的有效途径,符合当前碳达峰、碳中和目标决策要求。新形势赋予TOD模式新目标,即构建以公共交通主导的绿色生产生活方式。为此,在交通构建、用地开发和可持续发展等方面提出若干思考。交通方面,为实现“双碳”目标,公共交通成为综合交通的主导是必要的,基础是提供比小汽车有竞争力的公交服务,并配合良好的慢行系统,同时引导和控制小汽车使用。土地开发方面,引导城市生产、生活围绕公共交通系统组织,优化城市空间形态,差异化控制开发强度和推动产站城一体化发展。可持续发展方面,保障公共交通财务可持续和实现公共交通对城市减碳的贡献,核心是确保充足的客流量,从而实现公共交通可持续发展与TOD开发的双赢。     

基于MAPGIS和ArcView的城市水土流失地理信息系统设计与开发

对城市水土流失地理信息系统的设计与开发从系统总体设计、系统功能结构、系统实现等多方面进行了探讨，在城市水土流失地理信息系统专家模型方面进行了有益的探索，取得了初步成果，为建立城市水土流失地理信息系统提供了一个范例。     

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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