An Evaluation Approach for Shearer Operation Condition Through Comprehensive Fuzzy Evaluation and Entropy Method

2015 ◽  
Vol 12 (15) ◽  
pp. 5847-5856
Author(s):  
Ze Liu
Keyword(s):  
Entropy Method ◽  
Fuzzy Evaluation ◽  
Operation Condition ◽  
Evaluation Approach ◽  
Comprehensive Fuzzy Evaluation

scholarly journals Postgraduate Training Performance Evaluation Applying Weighting and Comprehensive Fuzzy Evaluation Methods

2021 ◽  
Vol 16 (01) ◽  
pp. 124
Author(s):  
Mei Wang ◽  
Zeng Zhang ◽  
Mi Xu
Keyword(s):  
Performance Evaluation ◽  
Evaluation System ◽  
Postgraduate Training ◽  
Comprehensive Evaluation ◽  
Graduate Training ◽  
Entropy Method ◽  
Fuzzy Evaluation ◽  
Training Performance ◽  
Output Quality ◽  
Comprehensive Fuzzy Evaluation

Postgraduate training performance evaluation is an important part of higher education evaluation. In order to quantitatively evaluate the performance of postgraduate training combined with the needs of talent training in colleges and universities, a comprehensive evaluation system for postgraduate train-ing performance is designed and proposed. The analytic hierarchy process and the entropy method are combined to determine the weights of seven in-put and output indicators, such as funding input, teacher source input, sci-entific research ability, and graduate output quality. The comprehensive fuzzy evaluation model is also applied. This paper tests the above models to evaluate the graduate training performance of 20 colleges at Tianjin Univer-sity. It is found that the weight of student input and graduate output quality combined is 87.69%, which makes them the key indicators to measure the performance of graduate training. Furthermore, it is concluded that the per-formance of the science college was significantly higher than that of the humanities college.

Fuzzy Synthetic Evaluation on Operation Conditions of Power Equipment Based on Optimized Weights

2013 ◽  
Vol 694-697 ◽  
pp. 915-918
Author(s):  
Qing Chao Zhang ◽  
Chao Wei ◽  
Xiao Tian Zhang ◽  
Xin Hua Jia
Keyword(s):  
Entropy Method ◽  
Power Equipment ◽  
Fuzzy Evaluation ◽  
Fuzzy Synthetic Evaluation ◽  
Reliable Operation ◽  
Operation Condition ◽  
Operation Conditions ◽  
Condition Evaluation ◽  
Variable Weight ◽  
Synthetic Evaluation

The need for economic and reliable operation of power equipment has lead to the search for effective methods for evaluating the condition of equipments. In this paper, fuzzy synthetic evaluation based on optimized weights is proposed to enhance the precision and flexibility. This method makes dual optimization on the weights of the factors which have vital influence on the accuracy of condition evaluation. At first, the initial weights are adjusted by entropy method effectively. Then variable weight model is introduced to make correction according to the deviation of actual data and normal state. At last, the fuzzy evaluation thought is utilized to value the ultimate operation condition of power equipment. A numerical example of a condenser in generator set is provided to illustrate the feasibility and effectiveness of the proposed method.

Research and Evaluation of Bionics Shape Design Based on Cases

2014 ◽  
Vol 551 ◽  
pp. 621-625
Author(s):  
Nan Chu Guo
Keyword(s):  
Genetic Algorithm ◽  
Quantitative Methods ◽  
Evaluation Method ◽  
Evaluation Methods ◽  
Shape Design ◽  
Fuzzy Evaluation ◽  
Ideal Approach ◽  
Comprehensive Fuzzy Evaluation

The paper proposes an ideal approach of shape design by using shape evaluation methods accurately. The paper proposes and tests the comprehensive fuzzy evaluation method using a case of two clips based on genetic algorithm and quantitative methods. By using this evaluation method, the shape details of a product could be improved gradually.

scholarly journals Research on CBM of the Intelligent Substation SCADA System

Energies ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3892
Author(s):  
Jyh-Cherng Gu ◽  
Chun-Hung Liu ◽  
Kai-Ying Chou ◽  
Ming-Ta Yang
Keyword(s):  
Influencing Factors ◽  
Comprehensive Evaluation ◽  
Fuzzy Theory ◽  
Fuzzy Comprehensive Evaluation ◽  
Entropy Method ◽  
Fuzzy Evaluation ◽  
Monitoring And Control ◽  
Analytic Hierarchy ◽  
Scada System ◽  
The Status

An equipment status management and maintenance platform of an intelligent substation monitoring and control system is built in the Tai-Tam substation of the Taipower company. The real-time operating status of the equipment, such as the server, supervisory control and data acquisition (SCADA) human–machine interface (HMI) software, switches, intelligent electronic devices (IEDs), merging units (MUs), as well as the entire SCADA system, are evaluated comprehensively. First, the status information of all equipment is collected, and the theory of relative deterioration degree (RDD) and fuzzy theory (FT) are applied to calculate the fuzzy evaluation matrix of the equipment influencing factors. Then, the subjective analytic hierarchy process (AHP) and the objective entropy method for weighting are combined to calculate the comprehensive weights of the equipment influencing factors. Finally, the result of the equipment status evaluation is obtained using the fuzzy comprehensive evaluation (FCE) method and is presented at the equipment status management and maintenance platform. Such equipment status evaluation results can be used by the inspection and maintenance personnel to determine the priority for equipment maintenance and repair. The result of this study may serve as a valuable reference to utility companies when making maintenance plans.

scholarly journals Ergonomic Fuzzy Evaluation of Firefighting Operation Motion

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Lifang Yang ◽  
Tianjiao Zhao ◽  
Fanyu Meng
Keyword(s):  
Evaluation System ◽  
Objective Evaluation ◽  
Comfort Level ◽  
Fuzzy Evaluation ◽  
Analytic Hierarchy ◽  
Engineering Software ◽  
Comprehensive Fuzzy Evaluation ◽  
Fuzzy Weight ◽  
The Moment ◽  
Hierarchy Process

The firefighting operation motion has an important impact on the safety and comfort of firefighting operation. As a judgment criterion of the firefighting efficiency, the comfort level is hard to judge in that it is completely decided by human feeling, so the comprehensive fuzzy evaluation is utilized for evaluation of comfort level. In this paper, firstly the factor and judgment set of firefighting operation comfort level are determined, and the fuzzy weight evaluation is obtained by questionnaires and analytic hierarchy process. Secondly, the joint angles of some particular motions are determined by motion capture equipment, the moment is obtained by ergonomic engineering software, and then the comprehensive comfort evaluation on firefighting operation motion is completed. Finally, the objective evaluation system of firefighting operation comfort is established.

Blockchain crowdfunding projects evaluation using GRA-TOPSIS

Kybernetes ◽  
2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Chunxia Yu ◽  
Yi Leng ◽  
Jing Li ◽  
Jiacheng Yu
Keyword(s):  
Human Resources ◽  
Entropy Method ◽  
Evaluation Index System ◽  
Three Dimensions ◽  
Evaluation Index ◽  
Content Type ◽  
Integrated Method ◽  
Evaluation Approach ◽  
Fuzzy Environment ◽  
Operation Process

Purpose This paper aims to propose a novel blockchain crowdfunding projects evaluation approach using extended techniques for order preferences by similarity to ideal solution (TOPSIS) under fuzzy environment. Design/methodology/approach By analyzing the characteristics and operation process of blockchain crowdfunding model, this paper formulates the evaluation index system from three dimensions of human resources, capital and publicity. In addition, the entropy method is used to calculate the weight of each indicator to avoid subjective judgments; different alternatives are evaluated using the grey correlation analysis (GRA) and TOPSIS-integrated method which considers the distance and similarity between alternatives simultaneously. Findings By analyzing the characteristics and operation process of blockchain crowdfunding model, this paper formulates the evaluation index system from three dimensions of human resources, capital and publicity. In addition, the entropy method is used to calculate the weight of each indicator to avoid subjective judgments; different alternatives are evaluated using the GRA and TOPSIS-integrated method which considers the distance and similarity between alternatives simultaneously. Originality/value Blockchain crowdfunding has become a new model for fund-raisers to raise funds from public investors. This paper proposes a novel blockchain crowdfunding projects evaluation approach using extended TOPSIS under fuzzy environment.

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