林口县跃进水库大坝安全评价工作浅谈

大多数的病险水库,在每年汛期都成为各地方防汛的重点,都要花费大量的人力、财力进行抢险。近几年来国家为保证人民的生命、财产安全,加大了对病险水库的资金投入,怎样才能对病险水库进行准确的安全评价,成为近年来水利行业的工作重点之一。     

资源节约型社会综合评价方法与应用

资源节约型社会综合评价是资源节约型社会建设的前提与基础。基于可拓分析理论,在建立了资源节约型社会综合评价指标体系的基础上,将资源节约型社会各指标的节约程度分为高、较高、中、低等四个等级,通过确定待评物元、节域、经典域、指标权重以及关联函数对资源节约型社会进行综合评价,并以2007年北京、天津、上海、重庆等四个直辖市的资源节约型社会综合评价研究为例进行了实证研究。     

Prospect of Evaluation Study on Vegetation Degradation

Vegetation degradation is related to the stability and succession process of ecological systems.This paper combed and screened the recent national and international research on vegetation degradation,and discussed vegetation degradation research in terms of selection of reference ecosystem for evaluation,selection of evaluation index system and the selection of evaluation methods.At last,the direction of vegetation degradation research was predicted and prospected.     

生态文明建设下退耕还湿必要性与成效分析——基于博弈和模糊评价视角

退耕还湿既是生态文明建设的要求,又是人们对美好环境向往的时代需求。以退耕还湿的必要性和成效为研究基点,通过主体利益博弈和模糊综合评判来阐明该工程的推行选择和效益发展。政府和农户利益博弈的结果是双方反复博弈后最终会以群体高比例达成最优均衡战略[服从,补偿],从主体层面表明退耕还湿具有必要性;运用AHP-Fuzzy模型对20个具有代表性的湿地因子从经济、社会、生态3方面效益对三江平原湿地进行综合评价,得出各效益最大隶属度分别是3、4、3,综合效益最大隶属度为3,处于潜力发展期,表明退耕还湿的实施有成效,具有较好的发展前景。最后,针对两种方法和结果,给出了相应结论及相关建议。     

工程质量综合评价方法

针对工程质量评价的问题进行了探讨，并应用模糊数学的理论的提出了工程质量的综合评价方法。     

Evaluation on Heavy Metals in Black Soils of Hailun and Bayan Counties in Northeast China

The concentration of heavy metals was investigated in black soil samples collected from the fields treated with chemical in Bayan County which were from the vegetation covers,bare soil and grain fields without any chemical treatments in Hailun National Field Research Station of Agroecosystem,Chinese Academy of Sciences (CAS) in July,2009.Results showed that the presence of significantly high concentration of zinc (Zn) and lead (Pb) in soils covered with grass vegetation.However,mercury (Hg),copper (Cu),nick...     

生晒山参鉴定方法的研究

采用显微感官与Ｘ光、ＣＴ机检验的方法鉴定真伪生晒册参，与纯感观鉴定相比，其检测手段先进，方法简便快捷，实用性强，结果准确度高。     

The complex relationship between landscape and recreation

The relation between landscape and recreation is very complex. There are various, interrelated approaches to analyze this relation, such as land evaluation, impact analysis, spatial behaviour analysis, and assessment of the scenic quality of the landscape or landscape evaluation. In many of these approaches airphoto interpretation can be a useful tool.     

汉语自动分词中的神经网络技术研究

本文讨论了人工神经网络技术应用于汉语自动分词的映射模型和性能，着重分析网络结构和学习算法对歧义词切分的影响，在大量仿真实验的基础上，对其性能进行评价。