Green Construction Bid Evaluation System Research Based on Comprehensive Evaluation Method

Author(s):  
Huiling Li ◽  
Xige Liu ◽  
Si Tang
2021 ◽  
Author(s):  
xueying bao ◽  
Zhenxia He

Abstract The current bid evaluation method can no longer meet the needs of green construction of railway construction projects, so a bid evaluation method based on an improved PCA-gray variable weight clustering model is proposed. A bid evaluation index system for railway green construction projects with a hierarchical structure was constructed from three aspects: basic construction ability, business ability and green construction ability, and the index evaluation criteria were given. Considering the high dimensional complexity of the bid evaluation system, the improved PCA method was used to reduce the dimension of the bid evaluation system, and on this basis, an improved linear weighted comprehensive evaluation function was constructed to preliminarily evaluate the construction ability of bidders. Then, the grey variable weight clustering model is used to construct the definite weighted function to further analyze the green construction ability of the bidders and select the optimal bidder. Finally, the method was applied to the bid evaluation of railway engineering projects from Lanzhouxi to Zhongchuan Airport, and the conclusion is consistent with the actual bidders, which proves the applicability and effectiveness of the model.


2013 ◽  
Vol 303-306 ◽  
pp. 1452-1455 ◽  
Author(s):  
Shu Wen Sun ◽  
Yu Wen Zhai

According to the subjectivity, randomness and fatigue of the satisfaction selection of online teaching evaluation indicators for the students, the level of teachers teaching can not truly measure by the evaluation results. This paper introduces the fuzzy comprehensive evaluation method to deal with the evaluation data, and Practice has proved that this method produced results more equitable to reflect on teaching level. Which help teachers to promptly improve and improve teaching, the variable quality of teaching time control for process control, change the static management for dynamic management.


2020 ◽  
Vol 10 (16) ◽  
pp. 5398
Author(s):  
Mingqing Liu ◽  
Jun Liu ◽  
Mengyang Zhen ◽  
Futian Zhao ◽  
Zhimin Xiao ◽  
...  

In blasting operation, some undesirable impacts, such as fly-rock, fragmentation, and back break, are induced. If the blasting design is not optimized, these mentioned impacts would reduce the blasting efficiency. To improve and optimize the blast design, blasting effect evaluation is essential. Due to the complexity of interactions among blasting parameters, empirical methods may not be appropriate for blast design optimization. A two-level mathematical model based on fuzzy mathematics, is proposed in this work. In total, 11 typical parameters were chosen and classified into three groups. The blasting effect is evaluated from three aspects, and then the comprehensive evaluation is given. A blasting effect evaluation system was developed based on the mentioned method on the platform of VC++. Some other techniques, such as image processing, were integrated into the system, which allowed for obtaining all of the parameters rapidly and conveniently. The system was applied in practical bench blast engineering. The results obtained from the system can provide effective information for the optimization of the next blast design.


2014 ◽  
Vol 937 ◽  
pp. 419-423
Author(s):  
Yi Wei Li ◽  
Yi Shen ◽  
Qiang Meng

In order to evaluate the application effect of spinescence as an alternative to metal segregating gratings of expressway, the evaluation system is built. By using the methods of AHP and FCE the comprehensive isolation effect evaluation of Solanum deflexicarpum is carried out. The result shows that the comprehensive evaluation method can guide and enhance the effect of future spinescence application on segregating gratings engineering of expressway.


2011 ◽  
Vol 301-303 ◽  
pp. 924-931
Author(s):  
Bo Xu ◽  
Hui Xia ◽  
Yuan Yao

Since there are few methods to evaluate the qualitative index in dam safety monitoring and the evaluation system is imperfect, in this paper a new quantitative and comprehensive evaluation method for qualitative index is explored with the introduction of the method of interval marking, Set-Valued Statistics, grey theory and Jousselme distance function. Firstly, the interval marking method and Set-Valued Statistics are used to obtain the comprehensive quantitative value; then the evaluation class of the comprehensive quantitative value is quantified and the evidence vector is obtained through grey theory; next the weights of all qualitative indices are obtained through Jousselme distance function; finally the comprehensive influence of the qualitative indices on dam safety is determined by using the evidence vector and weights. The case study proves that this method is feasible which can reasonably determine the influence of qualitative index on dam safety.


2012 ◽  
Vol 573-574 ◽  
pp. 734-739 ◽  
Author(s):  
Rui Min Ma ◽  
Li Fei Yao ◽  
Rong Huang

This paper first introduces research about green supply chain management, and points out the differences between green supply chain management and traditional supply chain management according to the characteristics of green supply chain. Then, the paper analyses the sources of risk in green supply chain management fundamentally and constructs a risk evaluation system owing to the classification of sources. Finally paper makes a quantitative analysis to the risk of green supply chain with the fuzzy comprehensive evaluation method.


2014 ◽  
Vol 962-965 ◽  
pp. 3010-3015 ◽  
Author(s):  
Ning Zhang ◽  
Zhi Gang Zhang

The evaluation object is defined more reasonable. This paper establishes the student evaluation system by scientific questionnaire firstly, then determines the index weights by using AHP, thirdly quantifies the qualitative indexes according to the fuzzy comprehensive evaluation method. Finally we get each student’s score of the student evaluation system. Aiming at freshmen and sophomore , the student evaluation system can objectively reflect the students' comprehensive quality and have a guiding significance for improving the students' comprehensive quality.


2021 ◽  
Vol 2137 (1) ◽  
pp. 012057
Author(s):  
Yong Li ◽  
Laibin Yin ◽  
Ping Heng

Abstract Aiming at the problem of transformer condition evaluation, a comprehensive evaluation system for transformer noise is constructed according to the mechanism of transformer noise generation and propagation. Using matter-element theory and AHP, a state analysis method for transformer noise evaluation based on AHP matter-element model is proposed. The case analysis proves that the method is feasible for non-contact evaluation of transformer faults, and can accurately evaluate the state of the transformer, providing guidance for the operation and maintenance of the transformer.


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