Study on Function Zoning and Evaluation of Shallow Groundwater in Jinjiang City

2014 ◽  
Vol 675-677 ◽  
pp. 830-841
Author(s):  
Mingyao Yu ◽  
Suo Zhong Chen ◽  
Chu Yu Chen

Based on the comprehensive analysis about the hydrogeological condition, ecological environment, and the characteristics of geological environment, energy is devoted to constructing a function evaluation indicator system of shallow groundwater with Jinjiang regional characteristic in the light of the assessment indicator system proposed in technical requirement for function evaluation and zoning of shallow groundwater issued by ministry of Land and resources. By dint of expert’s knowledge and experience, efforts are spent in assigning different weight values to the indicators, classifying function evaluation grading standards, and putting forward a secondary function zoning rating system. Besides, focus is put on building a comprehensive function evaluation model of shallow groundwater by means of analytic hierarchy process based on the constructed assessment indicator system of shallow groundwater. In order to guarantee assessment accuracy, the studied region is split into regular discrete grid for the purpose of calculating the comprehensive assessment index of grid unit. Meanwhile, based on GIS’ spatial analysis function, a research is conducted on the overall function zoning map of the shallow groundwater in the studied region to accurately reveal its spatial distribution and exploitation and provide scientific basis for groundwater management.

2021 ◽  
Author(s):  
Jiamin Jiao ◽  
Guiguo Li ◽  
Xiaomin Teng ◽  
Yuxi Li ◽  
Wanglin Li

According to the characteristics of physical geography and hydrogeology in Pingtan Island area, an independent regional groundwater evaluation system is established according to the four-layer model structure of target layer, criterion layer, attribute layer and index layer in the system. AHP (Analytic hierarchy process) is used to determine the weight value of each index in the study area, and a set of groundwater function evaluation system suitable for the island area is established. A groundwater function evaluation model with high systematic order degree is constructed and applied to the groundwater function evaluation of Pingtan Island. The results show that the groundwater in Luyangpu plain, Longwangtoupu plain, Lianjiupu plain and Qilipu plain can be developed and utilized well; The function of groundwater in the south of Aozhen and the foot of Junshan mountain is general, so we need to pay attention to the protection of ecological environment; The comprehensive function of groundwater in reclamation area, Huoshaogang salt area and Tianzhuyukou seawater intrusion area is weak, which is not suitable for exploitation and utilization. The research results are suitable for the evaluation of groundwater function in independent small areas of islands, and can provide technical support for the sustainable utilization of groundwater resources in similar islands.


2013 ◽  
Vol 442 ◽  
pp. 617-622 ◽  
Author(s):  
Kai Jin Xu ◽  
Qin Liu ◽  
Lei Xu

Traffic safety has characteristics of long-term and arduous, and continued safety is the essential goal of safety, the continued safety of Yangtze River shipping is not only an important part of Yangtze River safety culture, but also a concrete manifestation of long-term safety mechanism. This paper analyzes the affecting factors of the Yangtze River shipping safety, from the perspective of sustainable safety, extract with operational index of safety evaluation, construct of the Yangtze River shipping safety evaluation model, combined with the improved analytic hierarchy process , estimates the main aspects that affects the continued safety of the Yangtze River shipping , and the research results can provide scientific basis for the long-term management of Yangtze River shipping safety.


2011 ◽  
Vol 474-476 ◽  
pp. 2243-2246 ◽  
Author(s):  
Hui Zhao ◽  
Li Ming Chen

A evaluation model based on the integration of analytic hierarchy process (AHP)-rough set theory (RS) and radial basic function (RBF) neural network is put forward for grasping the hydropower project financing risk. Firstly, the evaluation indicator system is constructed by AHP, then the evaluation indicators are discretized by RS neural network. And then, RBF neural network is used to evaluate the hydropower project financing risk. In order to grasp this evaluation model better, finally, the paper provides an example to demonstrate the application of this evaluation model.


Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1359 ◽  
Author(s):  
Wei Li ◽  
Zongkun Li ◽  
Wei Ge ◽  
Sai Wu

The internal mechanism affecting life loss caused by a dam-break flood is complicated. On the basis of analyzing the risk formation path, a risk evaluation indicator system was established which included the hazards, exposure and vulnerability factors. Variable Fuzzy Sets theory was introduced into the risk evaluation of life loss risk grades and applied to eight collapsed dams in China. According to the sequence of the risk grades of these dams, the evaluation result was mainly consistent with the actual mortality ranking sequence, showing that the model could be effectively applied to the risk evaluation of life loss in dam-break events. Aimed at the problem of large differences in the downstream population distribution of dams in China, this manuscript suggested that 10,000 people should be the basis for the grouping operation of dams in the risk evaluation. These Variable Fuzzy evaluation models and grouping suggestions could help stakeholders to allocate the funds for dam reinforcement more accurately and provide a scientific basis for the study of dam-break life loss and dam risk management.


2012 ◽  
Vol 204-208 ◽  
pp. 2028-2033 ◽  
Author(s):  
Zhong Chu Tian ◽  
Lei Yang ◽  
Tian Yong Jiang

The risk factors of continuous incremental launching bridge during construction stage are specialized. The risk in incremental launching stage is analyzed and identified. A risk assessment index system is built. A fuzzy comprehensive evaluation model is developed. The results obtained from the risk assessment model verifies the validity and practicality of the developed method by the combination of analytic hierarchy process and fuzzy mathematics theory. Moderate risk assessment results are developed to provide references for incremental launching construction method.


2021 ◽  
Vol 1203 (2) ◽  
pp. 022144
Author(s):  
Wei Tong Chen ◽  
Theresia Avila Bria ◽  
Hsieh Shih-An ◽  
Ferdinand Liem

Abstract Result of evaluates the usage function at radiology facilities and equipment based on the professional opinions of radiology department relevant medical personnel in Taiwan, using of factor analysis (FA), analytic hierarchy process (AHP), and simple weight method is : The among the four evaluation dimensions for the usage function evaluation model of radiology facilities and equipment, the safety equipment dimension is far more important than the other so that needs to be improved (The total number of institutions, whose evaluation score falling below the dimension average value, are 9, 4, 7 and 5, respectively). Of the 17 medical institutions, the overall performance of the best (90.95) and the worst (61.47) the gap between is up to 47%.


2011 ◽  
Vol 243-249 ◽  
pp. 6369-6372 ◽  
Author(s):  
Qing Shuang ◽  
Yong Bo Yuan ◽  
Kai Shuang

Bidding evaluation is a complex but important decision making process for buyer to ensure the project accomplish smoothly. Bidding evaluation has 1) separation in commercial and technical tender; 2) subjectivity in weights allocation. In order to solve the problems, this paper sought to build a new bidding evaluation model with an indicator system, based on Project Management Body of Knowledge (PMBOK). Data envelopment analysis (DEA) was introduced to assess the rank. With an alternative secondary function, the model extended the application of DEA cross-efficiency method. Experiment with a practical engineering showed the new model yield stable bidding scores and demonstrated its applicability.


2021 ◽  
Vol 275 ◽  
pp. 02008
Author(s):  
Chengzhi Niu ◽  
Yougan Zhu

Due to the severe situation of global climate change and depletion of energy resources, low-carbon development has become an inevitable choice for global climate change and maintaining sustainable economic and social development. In order to promote low-carbon development, we should scientifically evaluate the low-carbon development status of a country, economy or region. At present, the research on low-carbon evaluation indicators is still in the exploratory stage. There are not many low-carbon indicators that are really used in practice, and there is currently no recognized and authoritative low-carbon evaluation indicator system. Based on this, this article attempts to use the analytic hierarchy process to further study the low-carbon development indicator system, to establish a scientific and objective system of low-carbon development indicators, and use such an indicator system to guide and promote low-carbon development.


2013 ◽  
Vol 380-384 ◽  
pp. 1270-1273
Author(s):  
Zhao Hui Zheng

How to evaluate vocation education performance is one of the difficulties and hot research fields for the researchers related. The paper presents a new model for evaluating vocation education performance based on the principle of analytic hierarchy process and fuzzy comprehensive evaluation. First an evaluation indicator system of vocation education performance is designed through analyzing the characteristics of vocation learners behavior; Secondly in constructing the comprehensive evaluation model for vocation education performance, analytic hierarchy process and fuzzy comprehensive evaluation are combined and two level fuzzy evaluation is adopted to satisfy the dynamics, subjective and transitional characteristics of indicators and improve evaluation accuracy. Thirdly datum from three vocational colleges are taken for examples to verify the validity and feasibility of the model and the experimental results show that the model can evaluate vocation education performance practically and can help vocation education service providers take corresponding concrete measures to enhance its education performance.


2013 ◽  
Vol 368-370 ◽  
pp. 501-504
Author(s):  
Wei Zhang ◽  
Jun Zhang

In view of the selection problem of sludge disposal method in the process of sewage treatment, this paper presents main influence factors on sludge disposal method in municipal sewage treatment works and establishes the comprehensive evaluation decision model of sludge disposal method. Using the analytic hierarchy process (AHP) to analyze and evaluate sludge disposal method, the relative weights of the influencing factors are determined and the optimal sludge disposal method is obtained. The establishment of this evaluation decision model can provide a scientific basis for the reasonable selection of sludge disposal method.


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