Research on Environmental Adaptability Evaluation of Engine Based on Fuzzy Evaluation

2012 ◽  
Vol 490-495 ◽  
pp. 2583-2587
Author(s):  
Xian Cheng Wang ◽  
Xing He ◽  
Jing Zhang
Keyword(s):  
Evaluation System ◽  
Evaluation Model ◽  
Heilongjiang Province ◽  
Fuzzy Evaluation ◽  
Hierarchical Analysis ◽  
Evaluation Theory ◽  
Vehicle Engine ◽  
Special Vehicle ◽  
Environmental Adaptability ◽  
Weight Coefficients

Investigation on environmental adaptability of special vehicle engine is scarce and its current evaluation system is unjustifiable in our country. Based on the fuzzy evaluation theory, referenced the criterion of American army environmental adaptability experiment, the paper determined the engine environmental adaptability evaluation fuzzy sets, baseline vectors and weight coefficients by the methods of hierarchical analysis and expert scoring. Then an environmental adaptability evaluation model was established to analyze and evaluate the engine environmental adaptability of the typical areas. The results indicate that the environmental adaptability of Bange in Tibet province rank "poor", Turpan in Tibet province rank "good", and Mohe in Heilongjiang province rank "average".

Entropy Weight Multi-Level Fuzzy Comprehensive Evaluation in Power Plant Security Based on Reliability Identification

2012 ◽  
Vol 482-484 ◽  
pp. 2390-2395
Author(s):  
De Qiang Li
Keyword(s):  
Power Plant ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Security Evaluation ◽  
Fuzzy Evaluation ◽  
Entropy Weight ◽  
Multi Level

In the paper, we establish an evaluation system in the study of four aspects such as people, regulation, equipment and technology management, field management and engineering construction. We present an entropy weight multi-level fuzzy comprehensive evaluation model in power plant security on the basis of reliability identification. Firstly, it identifies the reliability of power plant security evaluation system. Secondly, it can meet the condition that the system is reliable. Then it obtains the indicator weight of all levels in the evaluation system by the entropy weight method. Finally, it carries out a comprehensive evaluation in power plant security by the multi-level fuzzy evaluation method.

Grindability Evaluation of Advanced Ceramics

2004 ◽  
Vol 471-472 ◽  
pp. 132-135 ◽  
Author(s):  
Ai Bing Yu ◽  
L.J. Zhong ◽  
Xin Li Tian
Keyword(s):  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Experimental Results ◽  
Fuzzy Evaluation ◽  
Grinding Forces ◽  
Principal Stresses ◽  
Advanced Ceramics ◽  
Evaluation Theory ◽  
Better Than

Evaluation system of grindability was proposed for advanced ceramics. Grinding forces and material removals of SiC, Al2O3, Si3N4 and ZrO2 were measured. Grindabilities of ceramics were evaluated with property parameters based on fuzzy comprehensive evaluation theory. The experimental results suggest that grindabilities of SiC and Al2O3 are better than those of Si3N4 and ZrO2. The fuzzy evaluation results show grindabilities of SiC and Al2O3 ceramics are classified as grade of very easy to grind, and Si3N4 and ZrO2 are classified as grade of difficult to grind. The ranking of maximum grinding principal stresses of ceramics considering Poisson’s ratio is SiC, Al2O3, ZrO2 and Si3N4. Theoretical analysis calculated with property parameters is consistent with experimental results in comparison of grinding output parameters. The proposed evaluation system for ceramic grindability is feasible, and the evaluated results are comprehensive and reasonable.

Research on the Construction of Physical Education Curriculum Evaluation System Based on Information Technology

2014 ◽  
Vol 998-999 ◽  
pp. 1705-1708
Author(s):  
Jing Chao Xu ◽  
Jun Qing Wang ◽  
Jing Li
Keyword(s):  
Mathematical Model ◽  
Physical Education ◽  
Evaluation System ◽  
Curriculum Evaluation ◽  
Fuzzy Evaluation ◽  
Education Curriculum ◽  
Evaluation Theory ◽  
Computer Evaluation ◽  
Comprehensive Fuzzy Evaluation ◽  
Evaluation Matrix

This paper analyzed and researched physical education curriculum evaluation system according to the principle of computer evaluation technique. The first part introduced the physical education curriculum evaluation system this thesis designed the function of the system. The second part of the paper established the mathematical model of the teaching model of physical education through a comprehensive fuzzy evaluation theory and introduced comprehensive fuzzy evaluation matrix form. The third part designed B/S and C/S joint framework model of computer evaluation of PE curriculum combined with comprehensive fuzzy evaluation mathematical model. Finally, this paper designed the Java programming language taking the evaluation of the students about physical education course for example and concluded the implementation form of the data structure table and designed the physical training computer evaluation system.

scholarly journals Evaluation of reservoir management modernization under the concept of coordinated development

2020 ◽  
Vol 20 (8) ◽  
pp. 3697-3706
Author(s):  
Da-jin Yu ◽  
Zhengwei Zou ◽  
Jin Li
Keyword(s):  
Evaluation System ◽  
Large Scale ◽  
Evaluation Model ◽  
Reservoir Management ◽  
Middle Level ◽  
Jiangxi Province ◽  
Fuzzy Evaluation ◽  
Economic Management ◽  
Coordinated Development ◽  
Factors Affecting

Abstract The modernization of reservoir management is of great significance to the coordinated development of the region. There are many factors affecting the modernization of reservoir management, and there is a certain degree of ambiguity, randomness and uncertainty among the factors. It is difficult to evaluate the modernization of reservoir management comprehensively by traditional methods. This study first studies the connotation of reservoir management modernization under the concept of coordinated development; that is, securitization, economization, scientificalization and greenization. On this basis, a modernization evaluation system and AHP-Fuzzy evaluation model for reservoir management are constructed. Then, an empirical study is conducted with six large reservoirs in Jiangxi Province of China. The results show that the modernization level of large-scale reservoir management in Jiangxi Province is generally above the middle level, and the economic management and engineering management level of some reservoirs is relatively low, resulting in a low scientific and economic level of reservoir management, which is a key factor restricting the process of reservoir management modernization.

Fuzzy Comprehensive Evaluation Research of Construction Safety of Large Cross

2014 ◽  
Vol 488-489 ◽  
pp. 437-440
Author(s):  
Wen Dong Ma ◽  
Xiao Guang Wu ◽  
Heng Da Chen
Keyword(s):  
Large Scale ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Evaluation Research ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Fuzzy Evaluation ◽  
Evaluation Theory ◽  
Management Level ◽  
Advantages And Disadvantages

Using the fuzzy evaluation theory,through the establishment of the safety of large cross construction of fuzzy evaluation model, using AHP to evaluate the safety of large cross construction, the comprehensive safety evaluation,and points out its advantages and disadvantages. The fuzzy control is conducive to the management level of large-scale cross constructionsafety improve, to the great guidance for other types ofcity rail traffic.

The Research on Building up the Hierarchy Process and Fuzzy Evaluation Model and Evaluation System about the Cement Concrete Pavement on the Basis of the Fuzzy Mathematics Theory

2011 ◽  
Vol 255-260 ◽  
pp. 3228-3233 ◽  
Author(s):  
Zong Bin Liu ◽  
Wei Shui Fei ◽  
Pei Guan Wu ◽  
Fei Chen
Keyword(s):  
Evaluation System ◽  
Evaluation Model ◽  
Concrete Pavement ◽  
Fuzzy Mathematics ◽  
Fuzzy Evaluation ◽  
Cement Concrete ◽  
Analytic Hierarchy ◽  
Cement Concrete Pavement ◽  
Hierarchy Process ◽  
Fuzzy Evaluation Model

Making reference to the process of cement concrete pavement evaluation about current design, construction quality examination，highway maintenance management code, this paper builds up a hierarchy process and fuzzy evaluation model about the cement concrete pavement on the basis of the fuzzy mathematics theory, and confirms the weight of every process by the analytic hierarchy process, trying to elicit the import of each index, and sets up an evaluation system of the cement concrete pavement.

Fuzzy Evaluation Method of Sustainable Development of Mining Area

2014 ◽  
Vol 587-589 ◽  
pp. 86-91
Author(s):  
Ri Jia Ding ◽  
Lu Yin
Keyword(s):  
Sustainable Development ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Mining Area ◽  
Actual Condition ◽  
Fuzzy Evaluation ◽  
The Sustainable Development

With respect to mining area, to establish an evaluation system that aims to reflecting its actual condition and assessing its sustainable development ability has been of importance. In this paper, we discussed the meaning of sustainable development and evaluation factors, and then built a fuzzy comprehensive evaluation model to evaluate the sustainable development condition of mining area.

scholarly journals A Multi-Attribute Fuzzy Evaluation Model for the Teaching Quality of Physical Education in Colleges and Its Implementation Strategies

2021 ◽  
Vol 16 (02) ◽  
pp. 159
Author(s):  
Yao Wang ◽  
Chunyan Sun ◽  
Ying Guo
Keyword(s):  
Physical Education ◽  
Evaluation System ◽  
Evaluation Model ◽  
Implementation Strategies ◽  
Teaching Quality ◽  
Fuzzy Evaluation ◽  
Proposed Model ◽  
Grey Relational ◽  
Fuzzy Evaluation Model

There are two major problems with teaching quality evaluation of physical education (PE) in colleges: the excessive number of evaluation factors, and the incomplete evaluation system. To solve the problems, this paper puts forward a multi-attribute fuzzy evaluation model of college PE teaching quality, and provides the strategies to implement the model. Firstly, the problems of college PE teaching were analyzed, and a novel multi-dimensional evaluation system was developed for college PE teaching quality. To quantify college PE teaching quality, an evaluation model of college PE teaching quality was established based on the Grey Relational Analysis (GRA). In addition, several strategies were presented to improve college PE teaching quality. The proposed model and strategies provide a good reference for solving similar complex system problems.

Sensory Fuzzy Evaluation System Applied in the Cabs of Mine Vehicles

2014 ◽  
Vol 548-549 ◽  
pp. 1943-1946
Author(s):  
Zhe Chen ◽  
Neng Chang ◽  
Xue Liang Ma
Keyword(s):  
Evaluation System ◽  
Sensory Experience ◽  
Harsh Environment ◽  
Fuzzy Evaluation ◽  
Evaluation Theory ◽  
Evaluation Indexes ◽  
Multi Level

The cabs of vehicles used in mines are complex man-machine interfaces since those vehicles normally operated in harsh environment. Multi-level fuzzy evaluation theory is a method used to study these interfaces. This paper describes the user sensory experience theory, based on which we establish fuzzy evaluation indexes and man-machine fuzzy evaluation prototype . Then, the method to determine the levels of factor weights and the selected approach of fuzzy synthetic operation has been developed. Finally, a case study has been presented to evaluate certain types of mine vehicle cabs.

Comprehensive Evaluation on Ecological Effects of Artificial Reef Based on Grey Clustering Analysis

2013 ◽  
Vol 726-731 ◽  
pp. 1109-1114
Author(s):  
Bing Qing Liu
Keyword(s):  
Clustering Analysis ◽  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Artificial Reef ◽  
Fuzzy Comprehensive Evaluation ◽  
Ecological Effects ◽  
Fuzzy Evaluation ◽  
Grey Clustering ◽  
Evaluation Matrix

This paper first analyzes domestic and foreign literature related to artificial reef evaluation, and then summarizes the ecological effects of artificial reefs. Accordingly, a comprehensive evaluation system on ecological effects of artificial reef is established. Further, a fuzzy comprehensive evaluation model based on grey clustering analysis is derived and presented. The model takes the artificial reef project in East China Sea as an example. An empirical study is conducted to obtain fuzzy evaluation matrix and grade evaluation result. Finally, the result of model shows consistency with the actual ecological environment which verifies the correctness of the model.

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