scholarly journals Research on Comprehensive Evaluation Method of Transformer Noise Based on AHP Matter Element Model

2021 ◽  
Vol 2137 (1) ◽  
pp. 012057
Author(s):  
Yong Li ◽  
Laibin Yin ◽  
Ping Heng
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Element Model ◽  
Comprehensive Evaluation Method ◽  
Condition Evaluation ◽  
Noise Evaluation ◽  
Comprehensive Evaluation System ◽  
Matter Element Model ◽  
Element Theory

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.

System Implementation on Fuzzy Comprehensive Evaluation of Slope Stability Based on GIS

2011 ◽  
Vol 243-249 ◽  
pp. 3007-3011 ◽  
Author(s):  
Jun Lan Zhao
Keyword(s):  
Slope Stability ◽  
Evaluation System ◽  
Large Scale ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Comprehensive Evaluation Method ◽  
Slope Engineering ◽  
Comprehensive Evaluation System ◽  
Set Up

Application and research of GIS in the slope engineering is one of the hot topics in this field. In this paper, the fuzzy comprehensive evaluation method of slope stability based on GIS was researched. It developed and set up a multi factor slope fuzzy comprehensive evaluation system by using slope database and can quantitatively classify and evaluate the slope stability in a quick and efficient way. This system can be at work on slope data management, inquiry, statistics and spatial analysis. It evaluated the fatality and vulnerability to the slope of a large scale coal mine as an example.

Application of the Comprehensive Evaluation Method on Mechanism Scheme of Machining Center

2011 ◽  
Vol 338 ◽  
pp. 581-586
Author(s):  
Jian Hui Liu ◽  
Si Wen Yuan ◽  
Jia Lin Chang
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Database System ◽  
Fuzzy Mathematics ◽  
Expert Evaluation ◽  
Comprehensive Evaluation Method ◽  
Machining Center ◽  
Comprehensive Evaluation System

Based on fuzzy mathematics theory, a multi-layer fuzzy comprehensive evaluation system for mechanism schemes of machining center was established using value set instead of fuzzy set, which avoided the problems of constructing membership function, and achieved the quantitative evaluation for mechanism scheme with complex elements preliminarily. The model provided references for the development and establishment of the expert evaluation database system of the mechanism scheme.

Study on the Selection of Subcontractors Based on Fuzzy Comprehensive Evaluation

2012 ◽  
Vol 594-597 ◽  
pp. 3006-3010
Author(s):  
Yu Feng ◽  
Kang Bin
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Engineering Project ◽  
Comprehensive Evaluation Method ◽  
General Contractor ◽  
Comprehensive Evaluation System ◽  
Selection Of

From the point view of the general contractor, we can analysis of the various factors which affect the selection of subcontractors and construct them as the basis for the comprehensive evaluation index system of the subcontractors’ capacity risks. Then we can use Fuzzy Comprehensive Evaluation method to put forward the selection of subcontractors based on Fuzzy Comprehensive Evaluation. Finally, we list some engineering project examples to verify the feasibility and practical of the comprehensive evaluation system to provide references and recommendation for general contractor on evaluation and selection of subcontractors.

Application of Fuzzy Matter-Element Model Based on Cooperative Game Weight in Evaluation of Groundwater Carrying Capacity

2012 ◽  
Vol 518-523 ◽  
pp. 4135-4138 ◽  
Author(s):  
Yan Kang ◽  
Huan Jie Cai ◽  
Song Bai Song
Keyword(s):  
Cooperative Game ◽  
Carrying Capacity ◽  
Cooperative Game Theory ◽  
Comprehensive Evaluation ◽  
Groundwater Resources ◽  
Simple Algorithm ◽  
Element Model ◽  
Shaanxi Province ◽  
Matter Element Model ◽  
Element Theory

A fuzzy matter-element evaluation modeling based on cooperative game weight (FME-CGW) is presented in this paper. Based on cooperative game theory, authors introduce a cooperative game weight which embodying an idea of competition and coordination among different weight methods. Based on the cooperative game weight, employing fuzzy matter-element theory and Hamming approach degree, the authors develop FME-CGW model. The derived model is applied to assess the groundwater resources carrying capacity in Guanzhong plain in Shaanxi province. The results are reasonable and satisfactory by comparing to other methods. The study of this practical example shows that the modeling presented in this paper is a new method with simple algorithm and strong practicability, which can be adopted to analysis various comprehensive evaluation issues.

The Application of Fuzzy Comprehensive Evaluation Model in the Teaching Evaluation System

2013 ◽  
Vol 303-306 ◽  
pp. 1452-1455 ◽  
Author(s):  
Shu Wen Sun ◽  
Yu Wen Zhai
Keyword(s):  
Evaluation System ◽  
Online Teaching ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Teaching Evaluation ◽  
Comprehensive Evaluation Method ◽  
Time Control ◽  
Control Change

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.

Comprehensive Evaluation System and Elements for Hydrocarbon Traps

2014 ◽  
Vol 962-965 ◽  
pp. 112-116
Author(s):  
Guo Min Chen ◽  
Quan Wen Liu
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Process ◽  
Evaluation Theory ◽  
Hydrocarbon Trap ◽  
Hydrocarbon Traps ◽  
Precision Trap ◽  
Comprehensive Evaluation System ◽  
Main Components

The hydrocarbon trap evaluation is theoretical guidance for the practical exploration of hydrocarbon traps, the present complicated exploration targets requires the conclusion of hydrocarbon trap evaluation more scientific and reliable so as to adapt to the requirement of high frequency, high precision trap exploration. With the guidance of system theory and modern scientific evaluation theory, modern hydrocarbon traps evaluation has already become a system engineering, which obviously characterized by the comprehensive evaluation, quantitative evaluation and comprehensive decision. In this paper the comprehensive evaluation system for hydrocarbon traps has been established, it indicated that the comprehensive evaluation tends to be a whole procedure which involves such aspects including evaluation contents, data, methods, techniques, and evaluation process specifically, so its main components includes: evaluation object characteristics, theoretical guidance, evaluation contents, methods, techniques, and database establishment. Furthermore, it emphasize closely on the analysis of the exploration objects, focus on the comprehensive geological research, supported by scientific exploration and thinking and computer technology, considered evaluation method and technology research as the key contents, and finally enable to provide reference for the modern hydrocarbon trap exploration when it appear to become increasingly complicated and subtle.

scholarly journals A Comprehensive Evaluation Method of Bench Blast Performance in Open-Pit Mine

2020 ◽  
Vol 10 (16) ◽  
pp. 5398
Author(s):  
Mingqing Liu ◽  
Jun Liu ◽  
Mengyang Zhen ◽  
Futian Zhao ◽  
Zhimin Xiao ◽  
...  
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Open Pit ◽  
Effect Evaluation ◽  
Empirical Methods ◽  
Blasting Operation ◽  
Comprehensive Evaluation Method ◽  
Blast Design ◽  
Blast Performance

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.

Study on the Effect Evaluation of Spinescence Application on Segregating Gratings of Expressway - Taking Wu (Ding) – Kun (Ming) Expressway as Example

2014 ◽  
Vol 937 ◽  
pp. 419-423
Author(s):  
Yi Wei Li ◽  
Yi Shen ◽  
Qiang Meng
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Isolation Effect ◽  
Effect Evaluation ◽  
Comprehensive Evaluation Method ◽  
The Evaluation System

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.

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