流域水环境治理新技术与新材料研究进展

相较传统流域水环境监测与治理手段,基于3S技术的"数字流域"技术可以获取更多的水环境信息数据,通过RS手段可以获得水色、水温、水面形态等信息,推测有关水文及水质信息,GPS可以用来校正RS获取的空间位置信息。运用GIS对RS获取的数据信息进行分析,能够模拟流域水环境变化及其生态效应,为流域水环境治理相关部门提供决策服务。同时,近年来生态浮床、河道曝气技术、生态混凝土、阿科蔓复合生态技术、光催化技术等新技术与新材料的研究有了很大进展,不同的技术与材料各有不同特点,实际应用范围有限,尚未在流域水环境治理领域广泛应用。     

基于3S技术构建森林景观信息系统

介绍了地理信息系统技术(GIS)、遥感技术(RS)和全球定位系统技术(GPS)在森林景观研究中的应用和整个3S系统的集成模式．在3S系统中遥感用于获取森林景观资源的有关信息；全球定位系统用于定位采集地面数据和导航；而地理信息系统用于管理和处理收集到的有关森林景观资源的各种信息．     

基于高分1号影像的鄱阳湖水陆交错带植被演替分析

3S(GPS、GIS和RS)技术可以为湿地研究、合理评价湿地变化和预测未来湿地发展趋势提供强有力的技术保证。选取鄱阳湖湿地为研究区,由于卫星遥感技术可以在较短时间内获取连续的大范围的空间信息,具有空间宏观性,采用2013年和2017年2期的高分1号遥感数据,综合运用RS与GIS技术系统,利用卫星遥感技术获得鄱阳湖生态经济区土地利用信息,在波普特征分析和影像特征的基础上,基于专家知识发现探索水体、泥滩、湿生植物和挺水植物等信息的自动提取方法,为高分1号影像处理和湿地研究提供参考。通过面向对象分类方法对遥感影像解译结果的综合分析,对鄱阳湖研究区域水陆交错带植被的演替进行分析。     

3S技术在水域面积监测项目中的应用

<正>本文介绍了全球定位系统(GPS)、地理信息系统(GIS)、遥感(RS)等三大技术在数据的获取与处理上的各自特点，并结合江苏省盐城市水域调查，阐述了在水域调查矢量采集和后续水域数据更新中以GPS为基础升级的网络RTK技术可作为外业数据获取的主要手段；GIS数据处理功能强大，技术人员可以利用其强大的数据分析功能，快速查询到水域的空间位置信息、基础信息，并对其进行分析；RS可以快速、便捷地获取较大范围内监测区域的影像数据。     

3S技术在传统地理实习中的应用

以地学高新技术应用为特色的地理学实验教学,为传统地理实习提供新的思路和实习模式。地理学领域中的3S技术是目前应用最为广泛的高新技术,全球定位系统（GPS,Global Positioning System）能够快速准确地提供导航定位服务,地理信息系统（GIS,GeographicInformation System）则能够高效管理分析地理信息,遥感技术（RS,Remote Sensing）则可以提供宏观、综合的遥感图像来协助识别地物信息和地质地貌现象。通过3S技术（GPS,GIS,RS）的辅助教学,不仅能够提高学生在野外实习中的效率,增强实习效果,而且提高了学生掌握地学高新技术深入应用的能力。     

浅谈3S技术在林业产业规划设计中的实际应用

3S即是全球定位系统GPS(Global Positioning System);遥感RS(Remote Sensing)和地理信息系统GIS(Geographic Information System)的简称,近年来随着国内林业产业的发展对林业产业规划设计提出了更高的要求,怎样综合运用3S技术在设计过程中提高设计的科学性、合理性和可操作性是本行业目前需要解决的问题之一。     

新经济词典

“三S”技术 所谓“三S”即是遥感(Remote Sensing,简称RS)、地理信息系统(Geographic InformationSystem,简称GIS)和全球定位系统(GlobalPositioning System,简称GPS)的统称。“三S”技术是指将上述三种对地面观测的新技术有机地结合在一起,用来对地面物体的特征、特性进行综合分析的技术。     

鄱阳湖流域综合规划与管理技术

从80年代开始实施的江西省山江湖工程是一项针对鄱阳湖流域可持续发展的流域综合管理工程。本文回顾了山江湖工程l0多年来实施流域管理战略的过程，分析了鄱阳湖流域生态系统恢复的发展阶段和新时期流域综合规划和管理的战略思想，同时提出了建立鄱阳湖综合流域管理信息共享平台和一种对流域生境进行制图以及对景观生态系统进行建模的综合评价方法。     

基于HJ-1A/1B卫星TVDI的干旱遥感监测研究——以鄱阳湖流域为例

针对鄱阳湖流域2011年春季出现的特大旱情,利用2011年3~6月HJ-1A/1B卫星CCD影像计算NDVI,结合同步HJ-1B卫星IRS数据计算的地表温度信息,构建NDVI-LST空间,获取了鄱阳湖流域温度植被干旱指数(Temperature Vegetation Dryness Index,TVDI).利用同步观测的AMSR-E(Advanced Microwave Scanning Radiometer-EOS)表层土壤含水量数据对温度植被干旱指数结果进行可靠性验证.结果表明,TVDI和AMSR-E土壤含水量之间存在显著的负相关,相关系数达到-0.697(P0.05),由HJ-1A/1B卫星影像计算得到TVDI可以有效表征鄱阳湖流域的土壤含水情况.用TVDI监测结果分析鄱阳湖流域2011年干旱,从空间分布来看,鄱阳湖流域受灾最严重的是环鄱阳湖区和修水流域.从时间分布来看,鄱阳湖流域3月底以轻旱为主,4月底流域南部旱情加重出现中度干旱,5月鄱阳湖流域将近80%的区域都受到不同程度干旱的影响.     

数字城市与3S技术

“数字城市”建设将会为城市的可持续发展战略提供信息保障体系，满足政府决策、宏观调控、科技创新、自然资源与环境监测、智能交通及城市管理和各项社会公益事业等对信息方面的强烈需求，GPS、GIS和RS（3S）是数字城市的基础。其中GPS可以为数字城市提供一个统一的空间位置；GIS可以使二维信息向三维信息及网络化方向发展；RS可以实现数据的融合与分析。     

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