3S技术集成及其在地质领域中的应用

综述了3S技术集成和它们在地质领域中的应用,并就3S技术集成在地质领域中的应用作了展望。     

3S的集成与发展及其在林业中的应用

文章在总结RS、GIS和GPS及其特点的基础上,对3S的集成与发展进行了简单介绍,指出3S集成技术是当今空间科学领域的一个研究前沿,3S技术已广泛应用于各个领域中,因此,多波段、多平台的RS信息及其在野外调查中所必须的GPS和多功能GIS的结合使用,在林业中的应用相当广泛。     

3S技术在青藏高原研究中的应用前景分析

介绍了3S(GIS,RS,GPS)技术的特点及最新进展,总结了3S技术在青藏高原研究的现状和取得的成果,分析了3S技术在青藏高原研究中的应用前景,并设计了3S技术在高原研究中的集成框架.并指出基于GIS的高原研究数据、资料、成果的数据库建设和信息共享,高原三维地形模型建设及古地形的三维再造,高原地区的地学信息图谱研究是当前3S技术在高原研究中的重要领域和基础.     

浅谈3S技术在矿政管理领域中的应用

随着现代信息技术的不断发展．3S技术在当前矿政管理领域中也得到了迅速推广应用．特别在地质矿产、水资源、地质环境评价、地质灾害预测预防等矿政管理方面有了突破性的进展。实践证明了,3S技术在矿政管理中的应用给矿政管理系统带来了显著的经济效益和社会效益。     

3S技术在国土资源大调查中的应用初探

简要介绍了“3S”（RS，GIS，GPS）技术的内容，各自的发展趋势及集成应用于国土资源大调查中的状况．详细介绍了3S技术在基础调查计划、矿产勘查跨世纪工程、地质灾害预警工程中的具体应用，以及数字国土和技术发展工程的进展情况．最后，对3S技术在国土资源大调查中应用的问题提出了一些看法，并对3S技术的发展进行了展望．     

3S技术在土地资源管理中的应用

"3S"技术作为当前信息管理的高新技术,在土地资源管理中具有广阔的应用前景。本文在介绍RS,GIS,GPS及"3S"集成的基础上,从土地利用调查、土地利用总体规划、土地利用动态监测、土地资源评价和土地整理五个方面简要阐述了"3S"技术在土地管理中的应用,并展望了"3S"技术在土地管理中的应用前景。     

3S技术在土地资源管理中的应用

“3S”技术作为当前信息管理的高新技术,在土地资源管理中具有广阔的应用前景。本文在介绍Rs,GIS,GPS及“3S”集成的基础上,从土地利用调查、土地利用总体规划、土地利用动态监测、土地资源评价和土地整理五个方面简要阐述了“3S”技术在土地管理中的应用,并展望了“3S”技术在土地管理中的应用前景。     

3S技术与水利建设

随着信息技术的发展,3S技术在水利建设中发挥了越来越大的作用.本文简单介绍了遥感(RS)、地理信系统(GIS)、全球定位系统(GPS)和3S集成技术的基本概念,在其基础上,综述目前我国3S技术在水利信息化建设中的主要应用方向和发展趋势.     

SIMATIC S7-1200可编程控制器技术特点

SIMATICS7-1200可编程控制器是西门子公司推出的新一代PLC,作为S7-200的升级替代产品,S7-1200被定位在S7-200和S7-300之间。为了使广大读者能够更快的了解并掌握S7-1200,笔者在查阅技术数据和应用实践的基础上,对S7-1200的技术及应用特点做了系统的总结。其模块化设计,扩展灵活;集成了多种强大的工艺功能,可满足自动化系统中的特殊需求;通讯模块和集成的PROFINET接口,可实现自动化领域的多种通讯机制;高效集成的组态软件SIMATIC STEP 7 Basic在更新升级之后,更加方便、高效。     

基于3S集成的矿产资源成矿预测研究

矿产资源是重要的自然资源,是社会生产发展的物质基础,关系着人们的生产和生活。随着地球科学领域数字空间数据的迅速增长,3S技术成为矿产资源领域真正的需求。同时GIS、GPS、RS等高新技术的普及应用为成矿预测展示了新的前景。文中主要介绍如何实现用3S集成技术进行矿产资源预测。     

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

正~~