检索结果-南通市图书馆

A new method for spatio-temporal prediction of rainfall-induced landslide

Science china Earth Sciences 2006年第4期49卷 421-430页

作者： DING Jixin1,2, YANG Zhifa2, SHANG Yanjun2, ZHOU Shenghua1 & YIN Juntao3.1. china Non-ferrous Metals Resource Geological Survey, Beijing 100012, china 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Key Laboratory of engineering Geomechanics, Beijing 100029, china 3. school of geoscience & environmental engineering, central south university, changsha 410083, china china Non-ferrous Metals Resource Geological Survey Beijing China Institute of Geology and Geophysics Chinese Academy of Sciences Key Laboratory of Engineering Geomechanics Beijing China school of geoscience & environmental {3. Central South University Changsha China

Geological condition and rainfall are two most principal conditions inducing landslides in the Chongqing region. By analyzing the forming conditions of rainfall-induced landslides, a new method for spatio-temporal prediction of rainfall-induced landslide is brought forward on the basis of grading and overlapping geological condition and rainfall factor in this paper. At first, semi-quantitative assessment and grading for the geological condition of a certain area or slope can be carried out with the multi-factor interactive matrix. Then the severity of rainfall in that area is grading according to the maximum daily rainfall and the total rainfall in a rainfall course. Finally, the “landslide probability judgement factor” can be worked out through grading and overlapping “geological condition influenc- ing factor” and “rainfall influencing factor”, by which the landslide can be graded into 4 grades, they are landslide extremely easily happening, landslide easily happening, landslide difficultly happening and landslide hardly ever happening respectively. More accurate spatio-temporal prediction of rain- fall-induced landslides can come true on the ground of detailed geological survey of some dangerous slopes in an area and more precise weather forecast. Finally, the reliability and feasibility of carrying out the spatio-temporal prediction of rainfall-induced landslides with the method of “two factors” grading and overlapping are validated by the example of Jipazi landslide.

关键词： rainfall-induced landslide, geological condition, rainfall, two factors, grading and overlapping, interactive matrix, spatio-temporal prediction.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Preparation and characterization of nitrogen-doped titanium dioxides

引用

Science china Chemistry 2007年第2期50卷 212-216页

作者： ZHU GuoPing1 & ZHOU KangGen2 1 environmental Science Research & Design Institute of Zhejiang Province,Hangzhou 3.0007,china 2 Department of environmental {3.,school of Metallurgical Science and {3.,central south university,changsha 410083,china environmental Science Research & Design Institute of Zhejiang Province Hangzhou China Department of environmental engineering School of Metallurgical Science and Engineering Central South University Changsha China

A type of high visible-light active titanium oxinitride(TiO2-xNx) powder was prepared by a simple proc-ess:the calcination of the hydrated titanium dioxide at the atmosphere of ammonia-argon using a tu-bular electric furnace at high temperatures. The hydrated titanium dioxide was synthesized as the precursor of TiO2-xNx using titanic acid as raw material,which came from sulfate technique of produc-ing titanium white. The effects of temperature and reaction time on the nitrogen content,grain size and crystal structure were studied. The visible-light activity and photocatalysis capability of the powder were also investigated.

关键词： nitrogen-doped titanium dioxides visible-light activity photocatalysis titanium oxinitride

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Entropy Assessment on environmental Influence of Condense Heat in Recovery System in Air-Conditioning Refrigerating Machine

引用

湖南大学学报（自然科学版） 2009年第S1期36卷 96-101页

作者： TANG Wen-wu1,2,WANG Han-qing1,2(1.school of Energy Science and engineering,central {3. university,changsha,Hunan 410083,china 2.school of Civil engineering,Hunan university of Technology,Zhuzhou,Hunan 412008,china) school of Energy Science and engineering Central South University Changsha 410083 China school of Civil engineering Hunan University of Technology Zhuzhou 412008 China

This paper presented an entropy evaluation method for the influences of condense heat recovery system on the *** at the damage of the condense heat to the environment,an entropy of resource loss and an emission entropy from the condense heat recovery system in the air conditioning refrigerating machine were *** the evaluation of the entropies,we developed a new algorithm for the parameter identification,called the composite influence coefficient,based on the Least Squares Support Vector Machine *** simulation,the numerical experiments shows that the Least Squares Support Vector Machine method is one of the powerful methods for the parameter identification to compute the damage entropy of the condense heat,with the largest training error being-0.025(the relative error being-3.56%),and the biggest test error being 0.015(the relative error being 2.5%).

关键词： air-conditioning refrigerating machine condense heat entropy evaluation LS-SVM

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Hydrochloric acid recovery from rare earth chloride solutions by vacuum membrane distillation

引用

Rare Metals 2006年第3期25卷 287-292页

作者： TANG Jianjun ZHOU Kanggen school of Construction and environmental engineering Shenzhen Polytechnic Shenzhen 518055 China Metallurgical Separation Science and engineering Lab Central South University Changsha 410083 China

The possibility of the recovery of hydrochloric acid from rare earth （RE） chloride solutions was first experimentally studied by batch vacuum membrane distillation （VMD）. The recovery by continuous VMD was also studied to devise methods that enabled the operation of VMD setup in a stable condition as well as to increase the membrane-operating life The results indicated that HCl separation with RE by VMD was possible, and the recovery ratio of 80% could be achieved by batch VMD. In continuous VMD, when the temperature of circular solutions, circular rate, and downstream pressure was 62-63., 5.4 cm/s, and 9.3. kPa, respectively, the HCl concentration in circular solutions and the processing capacity per membrane area were obtained. The mathematical results were in accordance with the experimental ones.

关键词： membrane separation hydrochloric acid recovery vacuum membrane distillation rare earth mathematical stimulation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

长株潭地区土壤环境地球化学调查与评价研究

引用

土壤通报 2009年第2期40卷 382-386页

作者：息朝庄戴塔根中南大学地学与环境工程学院湖南长沙410083

通过长株潭地区环境地球化学调查工作的实施,对长株潭地区土壤环境地球化学研究的工作方法进行了初步研究。结果显示,工业区重金属中Cu、Zn、Pb、As、Cd的污染较严重,尤其是Cd,这说明工业生产所产生的废水、废气、废渣是引起土壤中重金... 详细信息

通过长株潭地区环境地球化学调查工作的实施,对长株潭地区土壤环境地球化学研究的工作方法进行了初步研究。结果显示,工业区重金属中Cu、Zn、Pb、As、Cd的污染较严重,尤其是Cd,这说明工业生产所产生的废水、废气、废渣是引起土壤中重金属污染的主要原因;各功能区重金属含量大小关系总体是:工业区>居民区>商业办公区>休闲区,居民区和休闲区中重金属超标可能是由生活废水、生活垃圾和汽车尾气引起的。

关键词：土壤重金属环境地球化学长株潭地区

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于GIS的湖南省国土资源遥感综合调查信息系统设计与实现

引用

计算机工程与应用 2004年第5期40卷 200-203页

作者：邓吉秋鲍光淑苏丹妮中南大学地学与环境工程学院长沙410083 中南大学信息物理工程学院长沙410083

湖南省国土资源遥感综合调查信息系统是湖南省国土资源遥感综合调查成果的集成体现,是一个数据可动态更新的运行系统。论文始终遵循软件工程理论、面向对象方法、开放式GIS标准,分析了湖南省国土资源遥感综合调查信息系统的数据、系统需... 详细信息

湖南省国土资源遥感综合调查信息系统是湖南省国土资源遥感综合调查成果的集成体现,是一个数据可动态更新的运行系统。论文始终遵循软件工程理论、面向对象方法、开放式GIS标准,分析了湖南省国土资源遥感综合调查信息系统的数据、系统需求,并对系统数据库、功能、结构、运行模式进行了总体设计。系统集成的思路与模式采用系统与数据相分离、图形数据与属性数据相分离两大原则;数据集成基于统一的数据格式、地图投影和编码标准,使得栅格数据、矢量数据以及相关属性数据能集成管理与查询;集成系统开发主要包括子系统控制、图形符号化、比例尺控制与图文互查等方面。在此基础上开发完成的系统是具有傻瓜式操作、数据可动态更新和应用子系统任意设置升级的管理型GIS。

关键词：国土资源遥感 GIS 系统设计系统开发湖南省

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Green Marketing Strategies in Railway Industry Based on Recycling Economy

The Green Marketing Strategies in Railway Industry Based on ...

引用

工程和商业管理国际学术会议

作者： Fenling Feng school of Traffic and Transportation engineering, central south university, {3., P.R.china, 410075

Making reasonable marketing strategies is the basis for the development of railway industry, and it is necessary to develop recycling economy for the sustainable development of railway industry. The thesis analyzes the problems existed in the railway marketing. Besides, it explores the relationship between recycling economy and green marketing, and suggests that recycling economy is the theory basis of green marketing, while the later one is the important method to develop recycling economy. What's more, it put up with the methods to carry on green marketing strategies. They are designing scientific railway recycling development, making and improving law, rule, policy and standards related to recycling economy in railway industry, and implementing the idea of recycling economy, carrying on green marketing and making green marketing mix. There are four powerful functions in the process of establishing green marketing system which is enterprises, consumers, the government and environmental NGOs (non-governmental organizations).

关键词： railway marketing strategies recycling economy

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Assembly and Transfer of Iron-sulfur Clusters during the isc Proteins in Acidithiobacillus f errooxidans

Assembly and Transfer of Iron-sulfur Clusters during the isc...

引用

第五届全国化学生物学学术会议

作者： Yanfei Zhang Wenjie Zhao~1 Huidan Jiang~1 Jia Zeng~1 Jianshe Liu~(2*) 1 school of Resources Processing and Bioengineering,central {3. university,changsha 410083,P R china 2 school of environmental Science & engineering,Donghua university,Shanghai 201620,P R china

The highly conserved operon iron-sulfur cluster(iscSUA)is essential for the general biogenesis and transfer of iron-sulfur proteins in *** this study,expression,purification and characterization of the proteins of the isc operon(iscSUA)of Acidithiobacillus ferrooxidans ATCC 23.70 was *** and transfer of[FeS]in vitro during the isc proteins and other iron

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Assembly of [Fe4S4] Cluster by Iron-sulfur Protein IscA from Acidithiobacillus ferrooxidans

Assembly of [Fe4S4] Cluster by Iron-sulfur Protein IscA from...

引用

第五届全国化学生物学学术会议

作者： Jianshe Liu~(1*) Huidan Jiang~2 Wenjie Zhao~2 Jia Zeng~2 Yanfei Zhang~2 1 school of environmental Science & engineering,Donghua {3.,Shanghai 201620,P R china 2 school of Resources Processing and Bioengineering,central south {3.,changsha 410083,P R china

＜正＞IscA was proposed to be involved in the iron-sulfur cluster assembly in AcidithiobaciUus ferrooxidans encoded by the iscSUA operon,but the role of IscA in the iron-sulfur cluster assembly still remains *** IscA from *** ATCC 23.70 was cloned and successfully expressed in Escherichia coli,finally purified by one-step affinity chromatography.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Genetic and epigenetic etiology of Parkinson diseases

Genetic and epigenetic etiology of Parkinson diseases

引用

2012年海内外华人神经科学会议

作者： Zhuo-Hua Zhang~* The State Key Laboratory of Medical Genetics Xiangya Medical school central south {3. changsha Hunan china.

＜正＞Parkinson’s disease（PD） is the most common neurodegenerative movement *** pathological hallmarks of PD are loss of dopaminergic neurons in substantia nigra compacta（SNc） of midbrain and formation of intracellular aggregate Lowy bodies. Majority of PD patients are ***,about 10%PD cases are *** genetic studies of familial cases result in identification of causative mutations in multiple *** analysis of these PD linked genes has provided important insight into the disease pathogenic ***,the etiology of sporadic PD remains largely *** long-term research goal is to reveal the molecular mechanism of *** hypothesize that both genetic and environmental factors play important roles in PD pathogenesis and that the environmental factors regulate PD genesis and progression via at least partially epigenetic mechanism. Based on the hypothesis,our research focus includes to elucidate the pathophysiological function of PD linked genes and their pathogenic mutants and to identify the epigenetic changes associated with *** results suggest that PD-linked parkin,PINK1,and DJ-1 form a functional E3.ligase complex to promote ubiquitination and proteasomal degradation ofun/misfolded *** of the E3.ligase complex is regulated by nedd8 modification of both parkin and *** identify PD-associated epigenetic modification,we have performed genome-wide methylation sequencing of brain tissue DNAs from 5 PD patients and their matched *** reveal hypermethy lation of 23. genes in PD brain tissues over their *** 3.%of these genes are related to *** vitro studies show that cells treated with sub-lethal dosage of PD neurotoxin MPP+ results in reduced expression of genes in neurogenesis pathway in addition to increased expression of immune related genes and cell death related genes. The study provides to our knowledge the first evidence of linking epigenetic

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：