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世博园白莲泾河道综合调水决策系统的设计与应用

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水电能源科学 2010年第9期28卷 131-133页

作者：戚晓明汪迎春杜培军中国矿业大学地理信息与遥感科学系江苏徐州221116 蚌埠学院计算机科学与技术系安徽蚌埠233000 河海大学水文水资源与水利工程科学国家重点实验室江苏南京210098

以.NET为软件开发平台,采用Google Earth GE API和MapX 5.0控件,结合世博园白莲泾河道综合调水需求,在分析调水系统的设计目标、框架及主要功能的基础上,开发实现了调水解决方案管理、数据库管理、GE环境、GIS环境下水质与水位动态演示... 详细信息

以.NET为软件开发平台,采用Google Earth GE API和MapX 5.0控件,结合世博园白莲泾河道综合调水需求,在分析调水系统的设计目标、框架及主要功能的基础上,开发实现了调水解决方案管理、数据库管理、GE环境、GIS环境下水质与水位动态演示等模块。模拟试验结果表明,该系统模拟精度较高,可视化效果较好,达到了系统的预定目标,有利于世博园的河道水质保障要求。

关键词：世博园白莲河道水质综合调水决策系统设计与应用 Application System Design Decision Making Integrated Transfer 软件开发平台数据库管理可视化效果主要功能预定目标试验结果设计目标模拟精度环境

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基于模糊决策和层次分析法的采矿方法选择

武汉理工大学学报 2009年第8期31卷 145-148,153页

作者：叶海旺常剑武汉理工大学资源与环境工程学院矿物资源加工与环境湖北省重点实验室武汉430070

以内蒙古某萤石矿为例,利用模糊数学理论和层次分析法来建立采矿方法优选模型,首先从众多影响采矿方法选择的因素中选取9个较为重要的因素,再利用层次分析法确定各因素的权重,最后采用模糊决策评选出最为合适的采矿方法。结果表明,采用... 详细信息

以内蒙古某萤石矿为例,利用模糊数学理论和层次分析法来建立采矿方法优选模型,首先从众多影响采矿方法选择的因素中选取9个较为重要的因素,再利用层次分析法确定各因素的权重,最后采用模糊决策评选出最为合适的采矿方法。结果表明,采用该模式选取的采矿方法具有一定的科学性和合理性,值得推广应用。

关键词：采矿方法模糊决策层次分析法权重

Important progress on the use of isotope techniques and methods in catchment hydrology

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Research in Cold and Arid Regions 2009年第3期1卷 207-214页

作者： JinKui Wu 1,2. YongJian Ding 1, BaiSheng Ye 1, QiYue Yang 3, Zhi Wei 1 1. key laboratory of Ecological Hydrology and Basin Sciences in Cold and Arid Regions {2. and engineering Re-search Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, china. 2. Institute for Landscape Ecology and resources Management, Justus-Liebig-University Giessen, Giessen 35392. Germany. 3. College of Earth and {2. Science, Lanzhou University, Lanzhou, Gansu 730000, china. key laboratory of Ecological Hydrology and Basin Sciences in Cold and Arid Regions {2. and engineering Research Institute Chinese Academy of Sciences Institute for Landscape Ecology and resources Management Justus-Liebig-University Giessen

The use of isotope techniques and methods in catchment hydrology in the last 50 years has generated two major types of progress: (1) Assessment of the temporal variations of the major stocks and flows of water in catchments, from which the estimation of wa-ter residence times is introduced in this paper. (2. Assessment of catchment hydrologic processes, in which the interactions be-tween different waters, hydrographical separation, and bio-geochemical process are described by using isotopes tracers. Future progress on isotope techniques and methods in hydrology is toward the understanding of the hydrological process in large river basins. Much potential also waits realization in terms of how isotope information may be used to calibrate and test distributed rainfall-runoff models and regarding aid in the quantification of sustainable water resources management.

关键词： isotope hydrological process catchment progress

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滑坡灾害复杂性特征研究

水土保持研究 2007年第5期14卷 325-329页

作者：林孝松许江西南资源开发及环境灾害控制工程教育部重点实验室、重庆大学重庆400044 水利水运工程重庆市重点实验室、重庆交通大学重庆400074

从系统论的角度出发,将滑坡灾害作为一个复杂的巨系统来进行研究,详细分析了滑坡灾害在存在意义和演化意义两个方面的复杂性特征。同时,从协同理论、分形分维、突变理论、人工神经网络与免疫系统以及空间信息技术综合集成等方面探讨了... 详细信息

从系统论的角度出发,将滑坡灾害作为一个复杂的巨系统来进行研究,详细分析了滑坡灾害在存在意义和演化意义两个方面的复杂性特征。同时,从协同理论、分形分维、突变理论、人工神经网络与免疫系统以及空间信息技术综合集成等方面探讨了多学科在滑坡灾害复杂性方面的研究。滑坡灾害的复杂性研究可以在一定程度上促进人类对滑坡灾害整体行为和发展演化过程的研究与探索,同时也可以为滑坡灾害的防治评价和预测预报提供科学依据和辅助决策支持,在滑坡灾害及其相关地质灾害的防治中具有积极的作用,在滑坡灾害的防灾减灾中有着广泛的应用前景。

关键词：滑坡灾害复杂性系统论

结合光谱、纹理与形状特征的高空间分辨率遥感影像分类(英文)

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结合光谱、纹理与形状特征的高空间分辨率遥感影像分类(英文)

TRANSVERSE MIXING IN A TRAPEZOIDAL COMPOUND OPEN CHANNEL

中国测绘学会第九次全国会员代表大会暨学会成立50周年纪念大会

作者： Yindi Zhao*a, b, Peijun Dua aSchool of Environment & Spatial Informatics, china University of mining and {2., xuzhou 2.1008, P.R. china bjiangsu key laboratory of resources and environmental information engineering, xuzhou 2.1008, P.R. china

Texture and shape analysis offer interesting possibilities to characterize the structural heterogeneity of classes in the high spatial resolution satellite imagery. In this paper, texture features are generated based on the Gaussian Markov random field (GMRF) model, and shape features are measured using geometric moments. Then feature selection is implemented according to the class separability. To reduce the border blurring effect introduced by texture features, the unsupervised classification algorithm involved ordered procedures is proposed, in which linear objects are extracted using spectral and shape features firstly, then other objects are detected using the combination of spectral, texture, and shape features. The proposed classification method is implemented using QuickBird imagery. For comparison, the standard K-means method with spectral data is used as a benchmark. The experimental results show that the ordered classification method with the combination of spectral, texture, and shape information performed better than conventional methods.

关键词： Texture feature shape feature high spatial resolution classification

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Journal of Hydrodynamics 2008年第5期20卷 645-649页

作者： ZENG Yu-hong HUAI Wen-xin GUYMER I. State key laboratory of Water {2. and Hydropower engineering Science Wuhan University Wuhan430072 China School of engineering University of Warwick Coventry CV4 7AE UK

Transverse mixing characteristics of solute in the open channel flow can provide useful information for river environmental management. The lateral mixing coefficient is a crucial parameter for reproducing the transverse mixing either by numerical simulation or by analytical prediction. Since the solute mixing can be greatly affected by the lateral variations in water depth, mixing coefficient should be determined in each sub-section （i.e., the main channel, side slope and flood plain） separately. In this article, the transverse mixing in a symmetric trapezoidal compound channel was studied based on {2. measurement of longitudinal and transverse velocity components and lateral distribution of solute concentration. The lateral mixing coefficient was estimated by adopting different Schmidt numbers in different sub-sections divided according to the developing trend of the eddy viscosity, and finally a piecewise linear profile of mixing coefficient was adopted to analytically predict the transverse solute concentration. The comparison between the analytically predicted data and the measuring solute concentration proved that this is an effective way to estimate the lateral mixing in the open channel flow with lateral variations in water depth,

关键词： transverse mixing trapezoidal compound channel mixing coefficient

Toxic Volatile Organic Compounds in Hotel Guestrooms in Guangzhou,South china

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Toxic Volatile Organic Compounds in Hotel Guestrooms in Guan...

SPOT image used in river water suspendedsediment and its environmental background analysis

2.12.International Conference on environmental engineering and {2.(ICEET2.12.

作者： Yan Peng 1,Xinming Wang 2.1 Institute of environmental Science and engineering,State {2. laboratory of Organic Geochemistry,Guangzhou University,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Higher Education Mega Center,Guangzhou,china 2.State {2. laboratory of Organic Geochemistry,Guangzhou,{2. laboratory of Environment Protection and resources Utilization Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangdong Province,china

Air samples were collected by stainless steel canisters in twenty hotels' guestrooms in *** volatile organic compounds(VOCs) were determined by preconcentrator-gas chromatography-mass selective detector *** mean concentration of VOC39 was 443.6μg *** levels were found to be higher indoors in half of the *** showed that Guangzhou's hotels had pollution of VOCs for some ***,benzene and xylene were major contaminants in aromatic ***,dichloromethane,chloroform,1,2.ichloroethane,1,1,2.2.tetrachloroethane,1,2.dichloropropane,trichloroethylene,carbon tetrachloride and 1,4-dichlorobenzene were major contaminants in chlorinated hydrocarbons.

关键词： Volatile organic compounds Indoor air quality Hotel Aromatic hydrocarbons Chlorinated hydrocarbons

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Journal of Geographical Sciences 1999年第4期9卷 402-409页

作者： WU Jun FANG Hong-liang FUSu-xing HUANGXuan(The State key Labofatory of resources and Environment {2. System, Institute ofGeograpy, Chinese Academy of Sciences, Beijing 100101, china)

High spatial and spectral resolution sensors such as Landsat Thematic mapper wereusually used to estimate the suspended sediment concentrstions in the coastal zones. But few peoplehave used SPOT image in estimating suspended sedanment concentlations. When studying thesuspended sediment concentlation in Danshui hiver in Taiwan. SPOT adage was used because of itshigher spatial resolution and Danshui hiver being not as wide enough as the coastal area. The riversuspended sediment concentlation was divided into four levels by MLC classifer. Composite ofband1 and band2.was found the best combination to express the suspended sediment. And therelationship of river suspended sediment and its environmental background was analyzed byoverlaying the map of suspended sediment, vegetation type and pollution resouxces.

关键词： Suspended sediment environmental background Danshui hiver SPOT

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热作为油运移动力的物理模拟实验

石油与天然气地质 2003年第3期24卷 210-214页

作者：邱楠生方家虎石油大学石油天然气成藏机理教育部重点实验室北京102249 中国矿业大学资源系北京100083

针对不同物性输导体、不同供油条件、不同温度差作用下油的运移情况进行了 5组模拟实验。结果表明在温度差作用下油流体可以发生运移 ,证实热 (温度 )在一定条件下可以作为流体运移的直接动力。在实验条件下 ,温度差 (热 )是决定油运移... 详细信息

针对不同物性输导体、不同供油条件、不同温度差作用下油的运移情况进行了 5组模拟实验。结果表明在温度差作用下油流体可以发生运移 ,证实热 (温度 )在一定条件下可以作为流体运移的直接动力。在实验条件下 ,温度差 (热 )是决定油运移进行与否、运移速度、运移距离大小的最主要因素。在其他条件相同的情况下 ,温差越大 ,运移距离越长 ;干砂中比湿砂中运移距离长 ;两端加热比一端加热运移距离长 ;一端开放更有利于油运移 ;不断补给供油量并不能使运移距离增大 ;储层物性并不影响油运移距离。

关键词：热/温度差运移动力模拟实验