基于Google Maps的城市应急知识库系统的设计

从突发事件给社会、民众带来的危害入手,分析了城市应急知识库系统的重要性.采用JavaScript与HTML超文本标记语言相结合的方式,实现网络用户与服务器的交互.借助Google Maps地图,实现相关信息在地图上的显示.本系统可以实现数据的录入、信息的查询、报表的生成、图片的浏览及突发事件的应急举措等功能.     

基于GIS的高原夏菜物流配送问题研究

针对传统车辆路径规划存在的问题,提出基于地理信息系统(GIS)的车辆路径规划问题.本系统基于组件式GIS体系结构,使用Web Services技术将车辆调度的数学模型封装为具有标准接口的组件,降低用户的使用难度.Google Maps的地图数据可以免费使用,是非专业GIS用户的首选.通过Google Maps JavaScript API搭建WebGIS平台,将物流车辆信息与地理空间数据结合建立物流配送系统,解决兰州陇海农产品市场有限公司物流配送的实际问题,将为中小企业使用信息化手段进行物流车辆调度管理提供样版.     

基于Google Maps API地震信息查询系统研究与开发

针对地震信息网络发布现状,为了实现对地震信息实现有效的管理,特别是方便用户的快速查询,本文探讨了基于Google Maps API、Google Earth KML及数据库等相关技术建立信息查询系统,并开发出了应用系统.该系统实现了对地震信息资源在GIS平台上的应用,这为有关部门在信息检索方面提供了支持,为公众快速获得相关地震信息提供了一个便捷的平台.     

基于Google Maps API的地图解析研究与实现

首先对Google Maps的运行机制进行分析,研究了Google Maps主要采用的两种技术:图片数据分片和Ajax技术.然后重点探讨Google Maps的地图解析,并设计一个基于Google Maps API的地图解析的持久化方案,最后对这个方案进行了实现.     

采用Oracle的Google地图兴趣点抓取和发布的WebGIS系统

通过Google Maps API开发实现对兴趣点的抓取,以Oracle Spatial点对象字段实现存储,借助Oracle Maps开发WebGIS系统,实现Google Maps兴趣点数据快速抓取,并与对应的属性和地图符号在Oracle中一体化存储,最终实现同数据库中已有的矢量和栅格数据的叠加和集成发布.对桂林市漓江流域旅游资源空间数据构建进行应用实践,结果表明:该系统可帮助开发者快速构建集兴趣点位置、属性、显示符号为一体的空间数据库,大大缩短开发周期并有效降低开发成本.     

基于Google Maps的奥运服务网站的建设

综合应用了Google Maps APIJ、avaJ、avaScript、AJAX、ADO.NET数据访问技术、XML读取数据库和解析xml文件等关键技术和方法,在B/S架构下构建了一个基于Google Maps电子地图的能够实现七大奥运城市天气预报、医疗健康、旅游景点、餐饮消费、商业服务等功能模块的奥运服务网站.该网站的建立能够很好地为广大国内外游客形象、直观地了解中国的奥运城市提供方便、快捷的服务.     

基于GIS的地震信息发布系统设计与实现

地震的发生是由于地壳下岩层原有的断层发生了位移所导致的,其所释放的巨大能量会以地震波的形式传播到地表,造成人员伤亡和财产损失。该文结合当前Web开发技术和移动开发技术,设计了Web端以及移动端的两个地震信息发布系统。其中Web端利用了Google Maps API,移动端利用ArcGIS for Android和Android Stuio技术,实现了Android地震信息发布系统的设计。     

基于Ajax和MapX的WebGIS体系及其实现

随着Google Maps的推出.越来越多的WebGIS平台采用了Ajax.Ajax自身的特征也决定了它非常适合WebGIS的开发.商用WebGIS平台功能完善但是价格过高,其对应的桌面平台的二次开发组件则功能完备同时价格低廉.该文研究了Ajax和MapX二次开发组件在WebGIS系统中的应用,探讨了利用Ajax技术结合GIS二次开发组件开发功能强大同时价格低廉的Web-G1S的实现方法,并提出了一个完整的解决方案.     

获取学术信息新途径——Google Scholar

阐述学术搜索引擎Google Scholar的基本情况、特点、学术价值和检索方法,旨在为广大用户在因特网上快速准确的找到自己所需的信息提供帮助,对于人们正确认识和使用Google Scholar具有实际意义.     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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