scholarly journals Spatial Identification and Redevelopment Evaluation of Brownfields in the Perspective of Urban Complex Ecosystems: A Case of Wuhu City, China

Author(s):  
Zihao Wang ◽  
Xiaoqiang Chen ◽  
Na Huang ◽  
Yinan Yang ◽  
Li Wang ◽  
...  

Rapid industrialization and urbanization in China have led to a rapid increase in the number of brownfields, however there is a lack of identification of the spatial extent of brownfields in cities and accurate assessment of brownfield redevelopment. Based on the relationship between brownfields and urban complex ecosystems, this paper defines brownfields in China and constructs a comprehensive evaluation index system including socio-economic and ecological subsystems. Using Wuhu City as empirical evidence, 19 brownfields were identified using remote sensing data and field surveys. Based on the detection of soil contaminants in brownfields, a fuzzy integrated evaluation method was used to suggest their redevelopment direction. It is found that the government’s planned land use types and the brownfield redevelopment evaluation results match to a large extent, but social, economic and ecological environmental factors should be more fully considered. At the same time, the identification and redevelopment of brownfield sites in the city as a whole need to be carried out by the government’s professional forces in order to obtain more effective and scientific conclusions.

2013 ◽  
Vol 859 ◽  
pp. 511-514 ◽  
Author(s):  
Jing Jing Wan ◽  
Ying Hua Song

This paper has put forward a comprehensive assessment model of the emergency management capability of the coal mine accidents which is based on AHP and fuzzy comprehensive evaluation, and has made an empirical analysis. Firstly, the meaning and the key contents of the emergency management capability of coal mine accidents was elaborated. Secondly, the comprehensive evaluation index system of coal mine accidents emergency management capability was established. And then, the first class index weights were determined by AHP. Finally, this paper made a comprehensive evaluation of a certain regions emergency management capability of coal mine accidents by means of the fuzzy comprehensive evaluation.


2014 ◽  
Vol 638-640 ◽  
pp. 2446-2449 ◽  
Author(s):  
Bo Liu ◽  
Ju Qin Shen ◽  
Gao Yan Xu ◽  
Liang Tang ◽  
Zi Lin Xu ◽  
...  

With the aim to improve the controlling efficiency of engineering project, this essay probes into the comprehensive evaluation of controlling efficiency of engineering project and put forward scientific comprehensive evaluation method to provide support to reasonable comprehensive evaluation of controlling efficiency of engineering project. Complete comprehensive evaluation index system of controlling efficiency of engineering project is constructed from three aspects, i.e. implementation efficiency of construction objective, external coordination efficiency and professional qualification enhancement efficiency; based on matter-element analytical method, mathematic model that could evaluate controlling efficiency of engineering project comprehensively is constructed.


Water Policy ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 410-428 ◽  
Author(s):  
Yongnan Zhu ◽  
Lei Li ◽  
Yong Zhao ◽  
Zhongmin Liang ◽  
Haihong Li ◽  
...  

Abstract We used system theory to analyze the structure of a regional drought disaster system and separated the drought disaster risk system into three subsystems. These were drought disaster-causing factors, disaster-inducing environments, and disaster-bearing bodies. Analysis of the main factors of these subsystems allowed the establishment of a regional comprehensive drought disaster risk evaluation index system. To simultaneously evaluate the distribution and development trends of the regional comprehensive drought disaster risk, we established a dynamic evaluation model. Based on the ideas of the projection pursuit clustering method and the dynamic comprehensive evaluation method, the model can make use of multi-dimensional space–time drought disaster information. The model was applied to evaluate comprehensive drought disaster risk in the Xuzhou region, China. The evaluation results show that the method was able to illustrate the development trend and distribution of the comprehensive drought disaster risk in the Xuzhou region. The clustering zoning results show that Pizhou City is the area with the highest risk in Xuzhou, while Fengxian has the lowest. The development trend of comprehensive drought disaster risk with time is not significant.


2013 ◽  
Vol 357-360 ◽  
pp. 1783-1788
Author(s):  
Chang An Zhou ◽  
Hong Ren ◽  
Jing Yang Zhou

In order to solve the existent problems of incomplete and ambiguous information during the evaluation on the multiple constraints factors of city underground space development and utilization, this paper applies analytic hierarchy process and fuzzy comprehensive evaluation method to construct the comprehensive evaluation index system of the multiple constraint factors of city underground space development and utilization, then Yuzhong District, Yubei District, Beibei District in Chongqing respectively as an example, and comprehensively to evaluate the multiple constraint factors of city underground space development and utilization. Example analysis shows that, it has high feasibility and effectiveness that applies the method of fuzzy comprehensive evaluation to the multiple constraint factors of city underground space development and utilization, and it can contribute to solve fuzziness and uncertainty problems of the evaluation process.


2012 ◽  
Vol 452-453 ◽  
pp. 726-730
Author(s):  
Yao Wu Wei

ERP (Enterprise Resource Planning) is a kind of advanced management method and ideological system, which is an effective tool to improve operating efficiency. In reference to the domestic and foreign relevant research results, this paper attempts to find a set of evaluation index system and method, which is suitable for small and medium-sized enterprises in China implementing ERP system performance evaluation according to characteristics. Then use AHP to determine each index weight and evaluate comprehensively ERP implementation performance of small and medium-sized enterprise employing the fuzzy comprehensive evaluation method. This can provide ERP project methodological guidance and help enterprise to carry out the scientific decision, improve the success rate of ERP implementation, and promote the process of ERP in our country popularity.


2013 ◽  
Vol 357-360 ◽  
pp. 2754-2758
Author(s):  
Chang An Zhou ◽  
Can Chen ◽  
Hong Ren

According to constraint elements more and more appearing in the comprehensive forms, and at present it only considers that single constraint element of city underground space development and utilization has been unable to reflect the actual situation. On the basis of the main characteristics of city underground space development and utilization, this paper aims to analyze various factors which may cause the consequence and the frequency of appearance, and to construct evaluation index system of city underground space development and utilization which is composed of 5 one-level indexes, 20 two-level indexes of evaluation index system of multiple constraint factors of city underground space development and utilization, and to use the analytic hierarchy process and fuzzy comprehensive evaluation method to analyze and evaluate the influence on city underground space development and utilization. Analysis of the example application shows that, it only considers single constraint element of city underground space development and utilization is not comprehensive, and not science, and it needs to consider the correlation between various constraint elements.


2013 ◽  
Vol 448-453 ◽  
pp. 2629-2635
Author(s):  
Hai Long Bao ◽  
Chen Fang ◽  
Jian Lin Yang ◽  
Yang Bai

As the urbanization in China accelerates, metropolitan regions are tending to change their spatial expansion mode from traditional satellite city mode to city cluster development strategy. Under this situation, the paper proposes the method and steps of evaluation for urban distribution network in city which takes the city cluster development strategy. The method takes city cluster as the unit of network planning and evaluation, firstly analyze the functional orientation and the land allocation of the target cluster for evaluation, then take other clusters with the similar function in other metropolis by analogy, finally a more instructive evaluation index system and evaluation standard will be obtained. The practical application in the medium voltage distribution network of Mazhai Industry Park in the city of Zhengzhou has proved that the method proposed is able to meet the demand of practical work in distribution network evaluation under new situation.


2013 ◽  
Vol 291-294 ◽  
pp. 2217-2221
Author(s):  
Hai Yan Wang ◽  
Wei Li ◽  
Xin Wei Du ◽  
Quan Ming Zhang ◽  
Song Ling Dai ◽  
...  

With integrated consideration of existing research on power grid development evaluation index system and requirements of power grid development diagnosis, a more comprehensive power grid development diagnostic index system is established from five aspects of power grid security and reliability, high efficiency, coordination, economics and social environment and more than 20 indicators. In addition, a new power grid development diagnostic evaluation method based on hierarchical analysis and multi-level fuzzy comprehensive evaluation is proposed in order to diagnose and assess power grid status quo and the actual level of development comprehensively, objectively and systematically ,which will help power grid enterprises conveniently to find the main reason of affecting the power grid and enterprise development and encourage enterprises to continuously improve the targeted improvement measures and the level of grid development.


2011 ◽  
Vol 403-408 ◽  
pp. 2632-2635
Author(s):  
Jin Yu Tian ◽  
Ling Ling Wu

In order to solve the financial risks of electric power enterprises analysis problem, a fuzzy comprehensive evaluation model is used in this paper. By constructing evaluation index system and calculating index weights, the model can reasonably evaluate the financial risks of electric power enterprises. For illustration, an electric power enterprise example is utilized to show the feasibility of the model in solving the problem Results show that financial risk of the electric power enterprise is general. The paper provides a new way for financial risks of electric power enterprises analysis, and makes its research further perfected. Thus, electric power enterprises can control and prevent financial risks better.


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