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使用PB数据管道对象实现多数据库备份与更新

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计算机工程与应用 2004年第26期40卷 163-165页

作者：赵祥刘素红屈永华王培娟北京师范大学地理学与遥感科学学院遥感与地理信息系统研究中心北京100875 北京师范大学地理学与遥感科学学院遥感科学国家重点实验室北京100875 北京师范大学地理学与遥感科学学院环境遥感与数字城市北京市重点实验室北京100875

论文介绍了PowerBuilder数据管道(DataPipeline)对象的主要特点与作用,结合数据库存储过程的使用,提出后台多数据库备份与更新的策略及关键技术,并给出其实现方法,为多数据库维护与使用提供了一个实例。

关键词： PowerBuilder数据管道多数据库备份与更新

4. and application of land reclamation in mining area

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中国有色金属学会会刊：英文版 2005年第S1期15卷 49-52页

作者： XIE Hong-quan~(1,2 ), HU Zhen-qi~1, JING Hai-tao~3. GAO Yong-jiu~(4., CHEN Qiu-ji~(5), FENG Zhong-ke~(6) (1. china University of Mining and Technology(beijing Campus), beijing 100083. china 2. Hebei Polytechnic University, Tangshan 063.09, china 3. Xuzhou Normal University, Xuzhou 221009, china 4. Tangshan Branch, china Coal Research Institute, Tangshan 063.12, china 5. Henan Polytechnic University, Jiaozuo 4.4.00, china 6. beijing Forestry University, beijing 100083. china) china Univ Min & Technol Beijing 100083 Peoples R China Hebei Polytech Univ Tangshan 063009 Peoples R China Xuzhou Normal Univ Xuzhou 221009 Peoples R China china COal Res Inst Tangshan Branch Tangshan 063012 Peoples R China Henen Polytech Univ Jiaozuo 454000 Peoples R China beijing Forestry Univ Beijing 100083 Peoples R China

4. products are basic mode of digitized products that are made by combining model remote sensing with GIS technology, and have already brought everybody’s high recognition. Coal mining makes great destroy to land of coal mining area, and ecological environment becomes worse, therefore land reclamation of mining area has already turned into investigated emphases. 4. meaning is briefly introduced, and its six characteristics are expounded in this paper. Production technique and application status of 4. are summarized, and existed problems are analyzed in developed aspect. Land reclamation of mining area is a complex system engineering, and application of 4. products can be impenetrated in whole process. Otherwise 4. has broad application scope in land management of mining area and mine information construction. Compound of remote sensing and DTM can be apply to solve mine survey, monitor of surface and marginal slope and so on.

关键词： 4. produce land reclamation remote sensing image data resource

Research on the damage of the Great Wall of Ming Dynasty in beijing by remote sensing

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Science china(Technological Sciences) 2008年第S1期51卷 195-202页

作者： LI XiaoJuan,GONG HuiLi,ZHANG Ou,ZHANG WeiGuang & SUN YongHua The Key Lab of 3. Information Acquisition and Application,MOE,the Key Lab of beijing Resource Envi-ronment and GIS,and College of Resource environment & Tourism,Capital Normal University,beijing 10003.,{3. Capital Normal Univ Key Lab Informat Acquisit & Applicat MOE Key Lab Beijing Resource Environm Beijing 100037 Peoples R China

Using aerial photos and high resolution satellite images of the year of 2004.this paper establishes remote sensing interpretation marks of the Great Wall of Ming Dynasty's damaged levels. Based on field survey and remote sensing survey in 1984.we analyzed present situation and changing characteristics being of the Great Wall of Ming Dynasty in {4.. The results show that about 7.02% of the wall is well-preserved (about 25861 m); 3..5% of the wall is slightly or moderately dam-aged (about 115989 m); 61.5% of the wall is badly damaged (about 2263.9 m). This paper analyzes the dynamic change of the Great Wall of Ming Dynasty. It shows that the damaged situation of the Great Wall of Ming Dynasty in {4. is serious. From 1984.to 2004.the well-preserved wall is decreased by 3.206 m (decreased by 56%); badly damaged wall increased by 51207 m (increased by 67%). Finally,this paper analyzes the influence factors of damaging Great Wall. The conclusion is as follows: The damaged Great Wall is generally near the roads and villages,small slope,and easily arriving land.

关键词： the Great Wall of Ming Dynasty remote sensing interpreting damage dynamic change spatial analysis

Natural eco-environmental evaluation of eastern Qinghai-Tibet Plateau using RS and GIS

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Journal of Geographical Sciences 2002年第3期12卷 283-288页

作者： YANG Shengtian, LIU Changming, YANG Zhifeng, SUNRui, ZHOU Xiaodong(1. Inst. of environmental Sciences, beijing Normal University, beijing 100875,{3. 2. Dept. of Resources and environmental Science, beijing Normal University, beijing 100875,china) Inst. of environmental Sciences Beijing Normal University 北京 100875 Dept. of Resources and environmental Science Beijing Normal University 北京 100875

The impact of interbasin water transfer on environment is very significant. The affected area of the west route scheme of the South to North Water Transfer Project in china (SNWT) is located in the eastern Tibetan Plateau, where the altitude is high with frigid eco-environment. In this article, {3. {4. and GIS are applied to analyze the natural environment and the natural environment index is established to express the natural conditions of the study area. After the natural environment index is divided into four grades and the features of each grade are analysed, some results are obtained for reference in environmental assessment of the west route of SNWT.

关键词： Qinghai-Tibet Plateau environmental assessment remote sensing GIS

Potential land for plantation of Jatropha curcas as feedstocks for biodiesel in china

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Science china Earth Sciences 2010年第1期53卷 120-127页

作者： WU WeiGuang 1,2,3.HUANG JiKun 1,3.& DENG XiangZheng 1,3.1 Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,beijing 100101,{4. 2 Department of Economics and Management,Zhejiang Forestry University,Linan 3.13.0,{4. 3.Center for Chinese Agricultural Policy,Chinese Academy of Sciences,beijing 100101,{4. 1. Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China2. Department of Economics and Management Zhejiang Forestry University Linan 311300 China3. Center for Chinese Agricultural Policy Chinese Academy of Sciences Beijing 100101 China

As a renewable energy,biofuel has attracted great attention in china and the rest of *** with the national food security,china recently has shifted its biofuel development priority from grain-based to non-grain-based biofuels,including forest-based biodiesel,since *** curcas is one of major biodiesel ***,there is rising debate on availability of land for expanding Jatropha curcas *** overall goal of this paper is to evaluate potential land for Jatropha curcas used as feedstock for biodiesel in *** on remote {3. data on land use,data on meteorological,soil and land slope,and suitable {4. for Jatropha curcas plantation,this study uses Agro Ecological Zone method and considers social-economic constraints to evaluate potential suitable land for Jatropha curcas plantation in china's major Jatropha curcas production region,Southwest *** results show that while there are some potential lands to expand Jatropha curcas areas,amount of these lands will hardly meet the government's target for Jatropha curcas-based biodiesels development in the *** may need to reconsider its long-term targets on the development of Jatropha curcas-based biodiesels.

关键词： biodiesel Jatropha curcas potential land suitability evaluation Southwest china

Spatial variations of tidal water level and their impact on the exposure patterns of tidal land on the central Jiangsu coast

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Acta Oceanologica Sinica 2010年第1期29卷 79-87页

作者： WANG Zhenyan GAO Shu HUANG Haijun Key laboratory of Marine Geology and environment Chinese Academy of Sciences Qingdao 266071 China Graduate School Chinese Academy of Sciences Beijing 100039 China MOE Key laboratory for Coast and Island Development Nanjing University Nanjing 210093China

The exposed area of intertidal zone varies with tidal water level changes, If intercomparisons of satellite images are adopted as a method to determine geomorphological changes of the intertidal zone in response to accretion or erosion processes, then the effect of water level variations must be evaluated. In this study, two Landsat TM images overpassing the central Jiangsu coastal waters on 2 January and 7 March 2002, respectively, were treated by the changing detection analysis using Image Differencing and Post-classification Comparison. The simultaneous tide level data from four tide gauge stations along the coast were used for displaying the spatial variations of water levels and determining the elevations of waterlines. The results show that the spatial variations of water levels are highly significant in the central Jiangsu coastal waters. The huge differences of tidal land exposure patterns between the two imaging times are related mainly to the spatial variations of tidal water levels, which are controlled by the differences in tidal phases for different imaging times and the spatial variations of water level over the study area at each imaging time. Under complex tidal conditions, e.g., those of the central Jiangsu coastal waters, the tide-surge model should be used to eliminate effectively the effects of water level variations on remote sensing interpretation of geomorphological changes in the intertidal zone.

关键词： waterline water level variations exposure patterns central Jiangsu coast remote sensing

remote sensing application system for water environments developed for environment Satellite 1

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中国科学：地球科学英文版 2010年第S1期53卷 45-50页

作者： WU ChuanQing1,WANG Qiao1,ZHANG YongJun1,LI JunSheng2,WU YuanFeng2,ZHU Li1 & YAO YanJuan1 1 Satellite environment Center,Ministry of environmental Protection,beijing 100029,{3. 2 Center for Earth Observation and {4. Earth,Chinese Academy of Sciences,beijing 100190,{3. 1. Satellite environment Center Ministry of Environmental Protection Beijing 100029 China2. Center for Earth Observation and Digital Earth Chinese Academy of Sciences Beijing 100190 China

remote sensing data collected by the environment Satellite I are characterized by high temporal resolution,high spectral resolution and mid-high spatial *** designed the remote sensing Application System for Water environments(RSASWE) to create an integrated platform for remote sensing data processing,parameter information extraction and thematic mapping using both remote sensing and GIS *** system provides support for regional water environmental monitoring,and prediction and warning of water *** to process and apply data collected by environment Satellite I,this system has automated procedures including clipping,observation geometry computation,radiometric calibration,6S atmospheric correction and water quality parameter *** consists of six subsystems:remote sensing image processing,basic parameter inversion,water environment remote sensing thematic outputs,application outputs,automated water environment outputs and a non-point source pollution monitoring *** present RSASWE plays an important role in operations at the Satellite environment Center.

关键词： water environment remote sensing Application System environment Satellite 1

基于Multigen/Vega的校园VR仿真系统的实现——以中国矿业大学为例

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系统仿真学报 2004年第9期16卷 1995-1998页

作者：宋金玲肖寒盛业华王锦地北京师范大学地理学与遥感科学学院遥感与地理信息系统研究中心遥感科学国家重点实验室环境遥感与数字城市北京市重点实验室北京100875 中国矿业大学环测学院徐州221008 南京师范大学地理科学学院南京210097

虚拟现实技术对于城市规划和城市的可持续发展有着非常重要的意义,它的长足进步,为真实景观的再现提供了有效手段。本论文在已有的二维地理信息系统数据的基础上进行校园数据的获取与组织,利用虚拟现实技术实现校园全景的三维重建,采用... 详细信息

虚拟现实技术对于城市规划和城市的可持续发展有着非常重要的意义,它的长足进步,为真实景观的再现提供了有效手段。本论文在已有的二维地理信息系统数据的基础上进行校园数据的获取与组织,利用虚拟现实技术实现校园全景的三维重建,采用层次型与面向对象相结合的三维数据结构,构造了校园全景的仿真模型,并实现了校园全景的驱动显示,为校园规划和可持续发展更可靠的保证。

关键词：虚拟现实 Multigen Vega 仿真

GIS-based risk analysis of debris flow:an application in Sichuan, southwest china

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International Journal of Sediment Research 2008年第2期23卷 138-148页

作者： B.F.DI1,2,3.N.S.CHEN1,P.CUI1,Z.L.LI1,Y.P.HE4.and Y.C.GAO1 3.1 Ph.D.,Chengdu Institute of Mountain Hazards and environment,CAS,Chengdu 61004.,china,Department of Architecture & environment,Sichuan University,Chengdu 610065,china,Graduate University of Chinese Academy of Sciences,beijing 10004.,china,2 Prof.,Department of Architecture & environment,Sichuan University,Chengdu 610065,china,3.Graduate University of Chinese Academy of Sciences,beijing 10004.,china 4.Department of Civil and environmental Engineering,San Diego State University,5500 Campanile Dr.San Diego,CA 92121,USA [a]Ph.D. Chengdu Institute of Mountain Hazards and environment CAS Chengdu 61004. china Department of Architecture & environment Sichuan University Chengdu 610065 china Graduate University of Chinese Academy of Sciences beijing 10004. china [b]Prof. Department of Architecture & environment Sichuan University Chengdu 610065 china [c]Graduate University of Chinese Academy of Sciences beijing 10004. china [d]Department of Civil and environmental Engineering San Diego State University 5500 Campanile Dr. San Diego CA 92121 USA

Debris flow is a serious geologic hazard in *** is estimated that nationally debris flows cause up to 2 billion RMB(250 million US$) in damages and 3.0-600 deaths and injuries *** mitigate debris flow hazards,it is necessary to map,model,and identify zones of debris flow hazards and vulnerability as to inform the local people about the potential risk with a geographic information *** research presents a regional scale case study modeling debris flow risk(hazard and vulnerability) in Sichuan Province,Southwestern *** this area,3.290 debris flows have been identified and the spatial-temporal distribution and activity characteristics of them have been *** on the available meteorological data,a digital Elevation Model with the rate of 1:250,000 and a regional geological map,the 24.hr rainfall threshold(y) for debris flow occurrence is closely related(significant at 99% confidence level) to the index(x) defined using a geology factor(rock hardness:a) and a topographical factor(channel gradient:d) where y = 21 + 10200 / x,in which x = 2.7 × ea + 1000 × *** discipline is constructive in developing the rainfall threshold for debris flow activity in remote mountainous areas that lack *** a given watershed,a four-level debris flow hazard map is developed by comparing the rainfall threshold to the design rainfall intensities with 50-,20-,and 5-year average recurrence intervals,*** degree of debris flow vulnerability is determined by the watershed socio-economic conditions.A four-class debris flow risk map,at the final phase of the research,is generated by combining debris flow hazards and *** the debris flow risk assessment,the Sichuan Province is classified into the slight,moderate,severe and very severe regions,which accounts for 3.%,19%,20% and 25% of total area respectively.

关键词： Debris flow Geographic information system Hazard Vulnerability Risk Rainfall threshold