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.

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.

Quantitative and Comprehensive Evaluation of Qualitative Indices in Dam Safety Monitoring

2011 ◽  
Vol 301-303 ◽  
pp. 924-931
Author(s):  
Bo Xu ◽  
Hui Xia ◽  
Yuan Yao
Keyword(s):  
Distance Function ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Safety Monitoring ◽  
Dam Safety ◽  
Grey Theory ◽  
Comprehensive Evaluation Method ◽  
Dam Safety Monitoring ◽  
Qualitative Index

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.

The Green Supply Chain Management Risk Analysis

2012 ◽  
Vol 573-574 ◽  
pp. 734-739 ◽  
Author(s):  
Rui Min Ma ◽  
Li Fei Yao ◽  
Rong Huang
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Green Supply Chain Management ◽  
Green Supply Chain ◽  
Chain Management ◽  
Comprehensive Evaluation Method

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.

Application of AHP - Fuzzy Comprehensive Evaluation Method in Students Assessment

2014 ◽  
Vol 962-965 ◽  
pp. 3010-3015 ◽  
Author(s):  
Ning Zhang ◽  
Zhi Gang Zhang
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Student Evaluation ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method

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.

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.

scholarly journals Research on the Mechanism of the Sustainable Development Model of Enterprises Based on Big Data Analysis Model

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Wei Zhang ◽  
Chaodan Yang ◽  
Ying Cheng ◽  
Haiying Chen ◽  
Wei Wang
Keyword(s):  
Sustainable Development ◽  
Performance Evaluation ◽  
Evaluation System ◽  
Business Performance ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
The Sustainable Development ◽  
Performance Evaluation System ◽  
Comprehensive Evaluation Method

This paper adopts the analysis method of big data to conduct an in-depth analysis and research on the sustainable development mechanism of enterprises, firstly, combing the content and methods of enterprise business performance evaluation, defining enterprise sustainable development, and exploring the integration of enterprise sustainable development and enterprise business performance evaluation by specifically analyzing from different perspectives. Then, we analyze the industry in which the enterprise is located, its business situation, and strategy, and after analyzing the current business performance evaluation system of the enterprise, we point out its problems. The current performance evaluation system is incomplete, focuses only on economic benefits, is not long term, and does not consider the company’s strategy and stakeholders’ needs, which affects its importance and feasibility. Then, the above analysis is integrated to build a performance evaluation system consisting of four dimensions, namely, economic dimension, scientific research and innovation dimension, social dimension, and ecological dimension, from the perspective of sustainable development, and a total of 29 indicators are selected. Then, the two research tools of first value method and fuzzy comprehensive evaluation method were combined, based on the panel data of enterprises from 2016 to 2020; the first value method was used to get the weights of each indicator in the business performance evaluation system. The fuzzy comprehensive evaluation method was used to get a comprehensive evaluation score of enterprise’s business performance in 2019, and then the evaluation results were analyzed in detail and suggestions were made, which confirms that enterprises are based on the sustainable development perspective. The evaluation of business performance is necessary and important. Finally, we propose supporting safeguards, such as establishing a performance evaluation team and a monitoring mechanism, dynamically improving the enterprise performance evaluation system, establishing a sustainable corporate culture, preparing and publishing a sustainable development report, and accelerating the information construction of performance evaluation.

Vibration Analysis of Pumps Units Based on Fuzzy Matter-Element

2012 ◽  
Vol 591-593 ◽  
pp. 2037-2041
Author(s):  
Kun Rong Huang ◽  
Han Qing Wang ◽  
Guo Xiang Lin ◽  
Yong Hui Tang
Keyword(s):  
Vibration Analysis ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
General Procedure ◽  
Technical Condition ◽  
Pump Unit ◽  
Factors Affecting ◽  
Comprehensive Evaluation Method ◽  
Major Factors

This paper analysises and evaluates vibration situation and gives the general procedure for vibration analysis of pumps units, which contain determination of each evaluation matter-element and comprehensive evaluation method based on matter-element. Evaluation matter-element is established by evaluation system of pumps vibration, aimed at a particular example. The factors affecting the vibration of the pump unit has three major factors of the mechanical, hydraulic, electrical, sub-factors of the three factors. According to the characteristics of the pump unit vibration and the current technical condition, the vibration is divided into five levels: most serious, more serious, normal, minor, and slight. The evaluation weight matter-element are established by using AHP, weight are determined by using the combination of AHP and entropy, finally comprehensive evaluation of pumps vibration performance is practiced. Thus, this evaluation is feasible and useful.

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