环境质量评价
- 名environmental quality assessment
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基于GIS的城市环境质量评价系统的设计
Design of urban environmental quality assessment system basing on GIS
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基于RS和GIS的天祝县草原景观空间格局分析与生态环境质量评价
RS and GIS Based Landscape Pattern Analysis and Ecological Environmental Quality Assessment of Grassland in Tianzhu
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铁皮石斛GAP种植基地的环境质量评价
Estimate of Environmental Condition on GAP Plant Base of Dendrobium officinale
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利用GIS技术进行海洋环境质量评价的研究
Research on marine environment quality evaluate by GIS
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基于GIS的害虫发生影响因素分析及森林生态环境质量评价
Analysis to the Ecological Factors Affected on the Forest Pest and Evaluation of Forest Ecological Environment Quality Based on GIS
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因此,BP神经网络评价法更适合洞庭湖区浅层地下水环境质量评价。
Therefore , BP neural network evaluation method is more suitable for shallow groundwater environmental quality assessment of Dongting Lake .
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基于RBF网络的大气环境质量评价
Application of RBF-ANN in Atmospheric Environmental Quality Evaluation
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GIS支持下的区域耕地土壤环境质量评价&以福建省莆田市荔城区为例
Evaluation of environmental quality in regional cultivating soil by GIS & Take Licheng District , Putian City , Fujian Province as an example
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公路建设生态环境质量评价3S技术辅助分析研究
Study on the Assessment of Regional Eco-environmental Quality with Aided Analysis of 3S Technique
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在区间与区间之距IR距概念的基础上给出了相应的可拓评价方法区间可拓评价方法,并在区域水环境质量评价中给出实例。
On the basis of IR distance this paper gives out IR extension assessment method and its application to water environmental quality assessment .
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结果高阶前馈神经网络模型应用于区域环境质量评价时,其性能指标优于传统BP网络。
Results The properties of higher order feedforward neural networks model were superior to those of the traditional BP model when applied in the assessment of regional environmental quality .
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借助野外调查采样分析和GIS技术进行福建省荔城区季节性蔬菜地综合环境质量评价。
Based on the technologies of field investigation , soil sampling , analysis and GIS , the multiple environmental qualities of seasonal vegetable fields in Licheng county , Fujian province were evaluated .
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经研究表明:综合指数法、模糊综合指数法、灰色聚类法、BP神经网络法这四种水质评价方法都属于水质综合评价模型,对水环境质量评价的结论也是基本一致的。
Through the research , it can show : four kinds of appraisement methods all belong to the Comprehensive evaluation model , their conclusions of the water quantity evaluate also are basic consistent .
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与迭加型指数法相比,改进的W值法更科学、合理、全面直观,是地表水环境质量评价的首选模型。
Compared with the Method of Superposition Index , improved nethod of W is more scientific , reasonable , visual and comprehensive and it is the prime model for environmental quality assessment of surface water .
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研究结果表明,BP神经网络应用于环境质量评价无需构建复杂的参数方程,且具有基于知识学习的特性,结构简单实用,具有客观性和通用性。
The result demonstrates that BP neural network , when it is used to evaluation of environmental quality , is simple , practical , objective and can be generalized because of its features of knowledge learning without complicated parameter equation .
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应用人工神经网络网络模型,结合MATLAB中BP网络算法的基本训练函数,建立了城市环境质量评价的BP神经网络模型。应用该模型,对广州市1997年至2002年的环境质量进行综合评价。
The thesis studies the rationality and reliability of Artificial Neural Network , and a BP neural network model for urban environmental quality evaluation built in MATLAB 's neural networks toolbox , the well trained network is used to assess eco-environmental quality for the year 1997 ~ 2002 of Guangzhou .
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通过对比分析,证明这种基于降维技术和B-P神经网络相结合的方法用于解决非线性多维体系的环境质量评价问题是行之有效的。
The contrast analysis proved that this method of combining reducing dimension technology and B-P neural network was effective for the solution of environmental monitoring assessment problem in non-linear multi-dimensional system .
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提出可将环境质量评价的无论是定量指标还是定性参数转化成二进制的1或0,进而将这种二进制数引入B-P网络。
In this paper , we present that can convert not only quantitative index but qualitative parameter as well of environmental qulity assessment into binary 1 and 0 , and then introduce binary number into B P neural network .
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用模糊数学和层次分析法进行城市综合环境质量评价
Assessment of urban comprehensive environmental quality by fuzzy mathematics and AHP
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长江三角洲地区地下水环境质量评价
Groundwater quality evaluation in the delta area of the Yangtze River
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德阳市水源环境质量评价与保护对策
On assessment and protection of water source environment of Deyang City
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鄂尔多斯含煤盆地综合地质环境质量评价
The Quality Evaluation of Geological Circumstances in Coal-bearing Basin in Eldos
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有时序多目标决策在水库环境质量评价中的应用
Application of Multi-objective Decision with Time-series in Reservoir Environmental Quality Assessment
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基于模糊信息分配的水环境质量评价
Assessment of Water Environment Based on the Fuzzy Information Diffusion Method
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辽宁省地下水环境质量评价与水质污染防治
Environmental quality assessment and pollution protection of groundwater in Liaoning Province
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物元模型及其在区域水环境质量评价中的应用
Matter-element Model and Its Application on Regional Water Environmental Quality Evaluation
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环境质量评价与预测方法的现状
A Review on the Methods of Assessment and Prediction of Environmental Quality
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矿区土地复垦中的环境质量评价
Assessment of the Environmental Quality in Land Reclamation of the Mining Areas
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福建省蒲田荔城区季节性蔬菜地综合环境质量评价
Evaluation of Multiple Environmental Quality of Seasonal Vegetable Field in Licheng County
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偏异指数在环境质量评价中的应用意义
Applications of Deviating Index in The Evaluation of Environmental Quality