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Remote sensing image classification based on artificial neural network:A case study of Honghe Wetlands National Nature Reserve

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Remote sensing image classification based on artificial neur...

2010 International Conference on Computer,Mechatronics, Control and Electronic Engineering (CMCE 2010)

作者： Yu-guo Wang jilin Business and Technology College changchun,china Hua-peng Li Northeast institute of Geography and Agroecology,CAS changchun,china Graduate University of Chinese Academy of sciences Beijing,china

Artificial neural network (ANN) is an important part of artificial intelligence,it has been widely used in remote sensing classification research *** remote sensing classification based on ANN is difficult,because of the complex feature of wetlands *** purity of training samples for remote sensing image supervised classification is difficult to guarantee that will affect the classification results based on *** article proposed a method for sample purification based on statistical analysis theory which could purify training samples for improved wetlands remote sensing classification based on *** BP ANN with a nonlinear mapping function can give good classification results for complex *** selected a TM image of Honghe Wetlands National Nature Reserve as study ***,we used the statistical analysis theory to remove noise in training samples;second,we used the original samples and purified samples to train the BP ANN separately,and produced two classification maps of TM image based on two trained BP ANN;finally,we compared the classification accuracy between the two *** results showed that BP ANN trained with purification sample improved the wetlands classification accuracy significantly.

关键词： statistical analysis theory remote sensing image BP ANN supervised classification wetlands

Sludge Solubilisation by Hydrogen Peroxide/Ozone Treatment and Organic Matter Recovery

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Sludge Solubilisation by Hydrogen Peroxide/Ozone Treatment a...

The International Conference on Advances in Chemical Technologies for Water and Wastewater Treatment

作者： YIN Jun~(1 2) ZHAO Yu-xin~(1 2) WANG Jian-han~2 ~1 School of Municipal and Environmental Engineering Harbin institute of Technology Harbin 150090 china ~2 jilin province Key Laboratory of Water Pollution Control and Resources Reuse jilin Architectural and Civil Engineering institute changchun 130021 china

＜正＞With the increasing demand for high efficiency and safety sludge treatment technology,an advanced sludge treatment process combining hydrogen peroxide and ozone was *** impacts of different pH value,ratio of hydrogen peroxide to ozone and the original sludge concentration on sludge disintegration were *** on the analysis of different parameters,soluble total organic carbon and particle chemical oxygen demand were selected as the indicator of sludge *** a result,it can be concluded that the combination of hydrogen peroxide and ozone process had a good performance when the molar ratio of hydrogen peroxide to ozone was 1.2 and the pH value was at the range of 6～*** increase of sludge initial concentration was benefit for sludge *** this study,the identical initial concentration of sludge was 9,850～20,000mg/*** addition,experimental results also indicated that the hydrolysis of sludge could be used as an alternative carbon source for nitrogen removal and the average rate of COD consumption of sludge supernatants was 7.67mgCOD/gMLSS·h.

关键词： Advanced oxidation process Sludge solubilisation Hydrogen peroxide/Ozone Carbon source Denitrification

中国吉林陨石雨——物质成分和组构的初步研究

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地质学报 1976年第2期 176-190+216页

作者： Meteorite Research Group of the changchun College of Geology and jilin institute of Geological science 长春地质学院吉林省地质科学研究所陨石研究小组

一九七六年三月八日,在中国吉林省吉林地区降落了一场空前规模的石陨石雨,这是中外科学史上的一个重大事件。经过无产阶级文化大革命锻炼的吉林地区的广大干部和群众,在陨石出现、爆裂以及降落后,立即做了最迅速、最仔细、最准确的观测... 详细信息

一九七六年三月八日,在中国吉林省吉林地区降落了一场空前规模的石陨石雨,这是中外科学史上的一个重大事件。经过无产阶级文化大革命锻炼的吉林地区的广大干部和群众,在陨石出现、爆裂以及降落后,立即做了最迅速、最仔细、最准确的观测和纪录,并在极短的时间內收集了散落在五百多平方公里范围內的陨石标本,积累了丰富的很有研究价值的第一手资料,对陨石的系统研究提供了极为有利的方便条件。

关键词：球粒陨石初步研究球粒结构精细结构陨石雨橄榄石岛状硅酸盐矿物斜方辉石正辉石陨硫铁陨石矿物铬铁矿尖晶石组构物质成分中华人民共和国

离子色谱法测定水样中S^(2-)、SO_3^(2-)、SO_4^(2-)、S_2O_3^(2-)

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吉林地质 2001年第2期20卷 64-71页

作者：时艳刘江潮吉林省地矿信息中心吉林长春130061 吉林省地质科学研究所吉林长春130012

该种方法利用离子色谱仪的电导检测器与电化学检测器串联 ,十几分钟即可连续完成水中S2 - 、SO2 - 3 、SO2 - 4、S2 O2 - 3 的测定 ,方法具有快速、高效、方便、灵敏、选择性好等特点。方法的检出限分别为 :S2 - 12 5 μg/L ;SO2 - 3 2... 详细信息

该种方法利用离子色谱仪的电导检测器与电化学检测器串联 ,十几分钟即可连续完成水中S2 - 、SO2 - 3 、SO2 - 4、S2 O2 - 3 的测定 ,方法具有快速、高效、方便、灵敏、选择性好等特点。方法的检出限分别为 :S2 - 12 5 μg/L ;SO2 - 3 2 2 4 μg/L ;SO2 - 45 0 μg/L ;S2 O2 - 35 0 μg/L。相对标准偏差在 1 5 %～ 6 9%之间 ,能够满足水中S2 - 、SO2 - 3 、SO2 - 4、S2 O2 - 3四种阴离子分析测试的需要。

关键词：离子色谱 S^2- SO3^2- SO4^2- S2O3^2- 水样硫离子亚硫酸根离子硫酸根离子

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Relationship between bulking sludge and substrate type under aerobic conditions

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Relationship between bulking sludge and substrate type under...

2011 World Congress on Engineering and Technology(CET 2011)

作者： Yang Xiong Wang Shuying Peng Yongzhen Key Laboratory of Beijing for Water Quality science and Water Environmental Recovery Engineering Beijing University of Technology Beijing china Huo Mingxin School of Urban and Environmental sciences Northeast Normal University changchun City jilin province china Guo Jianhua School of Municipal and Environmental Engineering Harbin institute of Technology Harbin Heilongjiang china

In this study,the sludge settleability and filamentous bacteria were investigated and compared in three sequencing batch reactors（SBR）filled with different substrates under aerobic *** substrate concentration gradient, the storage capability for microorganisms was low,and sludge bulking occurred *** sludge bulking was caused when the systems were fed with acetate and *** open and fluffy flocs formed in the system fed with *** analysis indicated that special filaments dominated in different substrate-fed *** is in favor of Thiothrix,while glucose is in favor of ***,and starch may cause a N. limicolaⅡand *** dominated sludge bulking.

关键词： bulking sludge substrate,storage capability sludge settleability filaments aerobic conditions.

Ontology-based Knowledge Representation for Resolution of Semantic Heterogeneity in GIS

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Ontology-based Knowledge Representation for Resolution of Se...

2011 3rd IEEE International Conference on Information Management and Engineering(ICIME 2011)

作者： Ying Liu1 2 3 Bai Zhang*1 1Northeast institute of Geography and Agroecology Chinese Academy of sciences changchun 130012 china Nan Wang2 Zongming Wang1 2jilin University of Finance and Economics changchun 130117 china 3 Graduate University of Chinese Academy of sciences Beijing 100049 china

Lack of semantic interoperability in geographical information systems has been identified as the main obstacle for data sharing and database ***,however, must develop methods to overcome the problems of semantic *** are considered to be one approach to support geographic information *** paper presents an ontology-driven integration approach to help in detecting and possibly resolving semantic *** originality is that each data source participating in the integration process contains an ontology that defines the meaning of its own data. This approach ensures the automation of the integration through regulation of semantic integration ***, land classification in field GIS is described related to the example.

关键词： ontology semantic integration semantic heterogeneity intelligent reasoning gis

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模糊属性自动机在层位标定中的应用

石油地球物理勘探 2001年第1期36卷 45-50页

作者：韩道范刘财李德昌长春科技大学

本文将句法模式识别理论与地震数据解释中的层位追踪相结合 ,叙述了一种模糊属性自动机的波组识别算法 ,并将它应用于断层两侧层位的标定。利用此方法进行层位对比具有运算速度快、不要求已知波形与待识别波形的长度相等的特点。因此 ,... 详细信息

本文将句法模式识别理论与地震数据解释中的层位追踪相结合 ,叙述了一种模糊属性自动机的波组识别算法 ,并将它应用于断层两侧层位的标定。利用此方法进行层位对比具有运算速度快、不要求已知波形与待识别波形的长度相等的特点。因此 ,它的应用更具有广泛性。实例应用证实了可行性。

关键词：层位标定地震数据断层属性波形模糊解释相等要求广泛性

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关于茸鹿副产品开发及培育终端消费市场的几点思考

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特产研究 2004年第4期26卷 55-57页

作者：刘秉宇刘彦吉林省图书馆吉林长春130021 中国农业科学院特产研究所吉林吉林132109

根据现代产业经济理论的观点,运用系统工程中系统辨识分析方法对我国茸鹿副产品开发滞后与终端消费误区所导致产业瓶颈效应进行剖析,阐述消费市场没做大的原因并提出了对策。

关键词：消费市场现代产业经济理论终端消费误区副产品系统工程茸鹿培育中国

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Vehicle State and Friction Force Estimation Using Nonlinear Observer Strategies

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Vehicle State and Friction Force Estimation Using Nonlinear ...

第二十七届中国控制会议

作者： Zhao Linhui 1,Liu Zhiyuan 1,Chen Hong 2 1.Control science and Engineering,Harbin institute of Technology,Harbin 150001,P.R.china 2.Control science and Engineering,jilin University,changchun 130025,P.R.china

Approaches to estimate friction forces and vehicle states are presented in this ***,based on the dynamical equations of the wheels,the estimates of the longitudinal friction forces are achieved by means of sliding mode unknown input estimation ***,using the longitudinal friction forces estimated and the nonlinear relation between lateral and longitudinal friction force of the tire,a new nonlinear vehicle dynamic model is ***,based on this model,nonlinear observers for estimation of longitudinal and lateral velocities are modified and extended to work for different road surface conditions and in critical driving *** input-to-state stability results are *** friction forces and vehicle states estimated are compared to those of the simulator *** results show the effectiveness of the proposed approaches.

关键词： Friction force estimation Vehicle state estimation Sliding mode observer Nonlinear observer