Water abundance evaluation of a burnt rock aquifer using the AHP and entropy weight method: a case study in the Yongxin coal mine, China

2021 ◽  
Vol 80 (11) ◽  
Author(s):  
Jiankun Xue ◽  
Lei Shi ◽  
Hao Wang ◽  
Zhongkui Ji ◽  
Hongbo Shang ◽  
...  
Keyword(s):  
Coal Mine ◽  
Entropy Weight ◽  
Water Abundance ◽  
Entropy Weight Method ◽  
Weight Method

scholarly journals Multi-Granularity Feasibility Evaluation Method of the Partial Destructive Disassembly for an End-of-Life Product

2021 ◽  
Author(s):  
Lei Guo ◽  
Xiufen ZHANG
Keyword(s):  
End Of Life ◽  
Evaluation Method ◽  
Evaluation Model ◽  
Entropy Weight ◽  
Component Level ◽  
Fine Grained ◽  
Feasibility Evaluation ◽  
Entropy Weight Method ◽  
Weight Method

Abstract Partial destructive disassembly (PDD) is essential for end-of-life products to improve their automatic disassembly efficiency and reduce disassembly cost. A feasibility evaluation of the PDD is the key step to evaluate whether the PDD can be implemented. However, it has not been studied previously to our knowledge. To deal with this problem, a multi-granularity feasibility evaluation method is proposed. A multi-granularity feasibility evaluation model of the PDD was constructed based on the complex product’s hierarchical structure, which not only described the evaluation indices from the product level to the component level but also presented methods and rules to quantify them. 1Thus, disassembly entropy was introduced into the target group’s coarse granularity evaluation. The feasibility of the fine-grained index of the PDD for the component layer was constructed based on the product’s failure characteristic. The fine-grained index was calculated by the fuzzy trigonometric function and its weighting was obtained based on the structure entropy weight method. Thus, the results of the evaluation were used as feedback to guide the PDD process. Finally, a Passat engine case study illustrates the feasibility and effectiveness of the method.

Study of the Construction Plan Bid Assessment Method of the Coal Mine Project Based on Entropy-Weight Method

2013 ◽  
Vol 275-277 ◽  
pp. 2748-2751
Author(s):  
Yang Wang ◽  
Chuan Ming Zhang ◽  
Zu He Wang
Keyword(s):  
Coal Mine ◽  
Assessment Method ◽  
Evaluation Index ◽  
Actual Situation ◽  
Entropy Weight ◽  
Evaluation Indexes ◽  
Construction Scheme ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Optimal Construction

In order to choose the optimal construction scheme in the coal mine construction project, this paper establishes evaluation indexes and applies entropy weight method to determine the objective weight of evaluation index based on the expert scoring so that the evaluation results are more consistent with the actual situation. This method solves the drawbacks that the evaluation indexes depend on the subjective assumptions too much and provide an effective method for choosing the optimal bid scheme of the coal mine construction.

A Case Study on a Combination NDVI Forecasting Model Based on the Entropy Weight Method

2017 ◽  
Vol 31 (11) ◽  
pp. 3667-3681 ◽  
Author(s):  
Shengzhi Huang ◽  
Bo Ming ◽  
Qiang Huang ◽  
Guoyong Leng ◽  
Beibei Hou
Keyword(s):  
Forecasting Model ◽  
Entropy Weight ◽  
Model Based ◽  
Entropy Weight Method ◽  
Weight Method
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