Multi-level Fuzzy Comprehensive Evaluation Research Articles

Threat modeling and assessment of unmanned aerial vehicle under complicated meteorological conditions

To study the effect of meteorological conditions on Unmanned Aerial Vehicle(UAV),an algorithm of multi-level fuzzy comprehensive evaluation method based on threat value was proposed.This algorithm improved a two-level weight value determination and the comprehensive evaluation model,which can get the comprehensive threat index after being calculated.The simulation results show that this algorithm can assess the degree of weather threat accurately and have faster operation speed,smaller error and lower complexity.The efficiency and validity have also been improved.

Analysis of Geological Disasters Economic Evaluation

This paper first introduces the meaning and mission of the economic evaluation of geological disasters,as well as the basic concepts of different economic evaluation, and then discuss the methods of economic evaluation of geological disasters, including multi-level fuzzy comprehensive evaluation method and statistical data evaluation method, and gives the outlook of the economic evaluation of geological disasters.

Terrestrial Ecological Risk Assessment Model of Nuozhadu Reservoir

Large reservoir ecological risk assessment is an important part of ecological environmental protection and improvement. Taking Nuozhadu reservoir in Lancang river basin as an example, a multi-level risk receptor--multiple risk source evaluation index system which can describe the complicated relationship and mechanism of ecological risk is established in terms of recognizing ecological risk sources and receptors of the valley area of terrestrial ecosystems; Considering fuzziness of human cognition on ecological system, diversity and different measure standard of the risk evaluation indicators, the multi-level fuzzy comprehensive evaluation model based on RRM(Relative Risk Model) thought is constructed. Calculation results show that the ecological-risk fuzzy-evaluation score of each receptor and the overall score can be obtained, which can provide important reference for ecological environment improvement of Nuozhadu reservoir area through the comparative analysis.

Analysis of Geological Disasters Economic Evaluation

This paper first introduces the meaning and mission of the economic evaluation of geological disasters,as well as the basic concepts of different economic evaluation, and then discuss the methods of economic evaluation of geological disasters, including multi-level fuzzy comprehensive evaluation method and statistical data evaluation method, and gives the outlook of the economic evaluation of geological disasters.

Fuzzy multiobjective decision support model for urban rail transit projects in China

This paper aims at developing a fuzzy multiobjective decision support model for urban rail transit projects in China under the background that China is presently experiencing an unprecedented construction of urban rail transit. In this study, an appropriate model using multilevel fuzzy comprehensive evaluation is developed. To do so, detailed description and definition of multilevel fuzzy comprehensive evaluation is displayed. In the decision process, the followings are considered as the influential objectives: traveller attraction, environment protection, project feasibility and operation. In addition, consistent matrix analysis method is used to determine the weights between objectives and the factor weights between factors, which reduce the work caused by repeated establishment of the decision matrix on the basis of ensuring the consistency of decision matrix. An application study is provided as an example to demonstrate the feasibility of this model. The results show that this model is reliable and applicable for decisionmaking in urban rail transit projects. Finally, a decision support system is developed to benefit decisionmakers in optimizing the process of identifying superior urban rail transit projects. First Published Online: 11 Oct 2013

The Life Cycle Management and Evaluation of Equipment Maintenance Quality

The maintenance activity of the equipment is the basis and supports that ensure the intact rate of the equipment and adequately giving play to its capability, to insure the high efficiency of maintenance activity, it is imperative that implement the life cycle management and many positions evaluation for maintenance quality. Firstly, to discuss the countermeasure and method of the life cycle management of maintenance quality from design and application and maintenance stages; secondly, to advance the principle of equipment maintenance quality; lastly, to establish the multi-level fuzzy comprehensive evaluation model of equipment maintenance quality.

Study on Post-Evaluation for the Power Transmission and Transformation Project Based on AHP-Fuzzy Comprehensive

On the basis of the basic theory of post evaluation of power transmission and transformation project in this paper, it selects the multi-level fuzzy comprehensive evaluation method to evaluate the project. Take the Qian Fangzi power transmission and transformation project as an example;It has carried on the empirical research. From the process of the project implementation, economic benefits, the influence of the project, sustainability evaluation and so on, it has achieved good results and proved the effectiveness of the proposed evaluation model.

Research on Project Risk Management of Power Engineering Based on Fuzzy Comprehensive Evaluation Method

The electric power engineering project has many characteristics like large scale, long construction period, complex technology, many units involved and so on. In order to avoid risk and improve the risk management efficiency of electric power engineering project, this article established a risk evaluation index system from the perspective of environmental risk, economic risk, technical risk, management risk, and market risk. According to the characteristics of the risk evaluation indicators, it built a multi-level fuzzy comprehensive evaluation model and took a power construction projects as an example to analyze the application of the model.

Wind Power Industry Competitiveness Evaluation in Hebei Province Based on Improved Fuzzy Comprehensive Evaluation Model

The wind resource is rich relatively in Hebei Province, and the wind energy utilization also has great potential. So it can play an important role to the sustainable development of Hebei Province energy, prompting the coordinated development of social economy and ecological environment. As a kind of renewable clean energy, wind power has the advantage of no pollution, low cost, but the wind power also has the inherent shortcoming of intermittence, random and instability. To evaluate the competitiveness evaluation of wind power industry in Hebei Province scientifically and accurately, this paper constructed the multi-level fuzzy comprehensive evaluation model, and defined the subordinate function and weight proportion. The competitiveness evaluation of wind power industry in Hebei province showed that the results given by this model are reliable, and this method to evaluate the industry competitiveness is feasible.

Crew Qualification Comprehensive Evaluation of Shipping Enterprise Based on Multi-Level Fuzzy Evaluation Method

Under the background of international trade and economic globalization, shipping enterprise which provide ocean shipping service undertake most cargo transportation globally plays a very important role today. Ships navigation is the basic operating method of shipping enterprise, ship crew is undoubted a key factor. Due to the specificity of ocean shipping industry, work specification greatly different from onshore staff, therefore, crew qualification evaluation is a challenge. This article based on the characteristics of shipping enterprise, specifically study on comprehensive evaluation index system for crew qualification, adopted multi-level fuzzy comprehensive evaluation method to obtain each index weight and corresponding values, proved effectiveness of model through appraisal of crew in a shipping enterprise. The model designed comprehensive crew qualification evaluation index system, it provides reference for crew performance assessment and further improved crew human resources management and career planning.

Sustainable Attraction of Ecological Countryside Resort

Based on the analysis of nine factors, which influencing mostly the sustainable attraction of Ecological Countryside Resort, this paper builds an index system for evaluating the attraction of Ecological Countryside Resort. Considering the attribute of the evaluation of sustainable attraction of ecological countryside resort, which is multi-gradation, multi-factor, and qualitative-and-quantitative-index-concentrating, this paper develops a multilevel fuzzy comprehensive evaluation method for assessing sustainable attraction of Ecological Countryside Resort. Thus, this paper provides a basis for improving the sustainable attraction of Ecological Countryside Resort, prolonging the life of Ecological Countryside Resort, optimizing the development and service marketing of Ecological Countryside Resort.

Evaluation and Optimal Selection of Diversion Tunnels Construction Simulation Schemes Based on Multi-Level Fuzzy Comprehensive Evaluation

Traditional project evaluation and optimal selection based on multi-objective programming and Delphi is highly dependent on subjective cognition, difficult to define weighted coefficient and without considering the uncertainty of the indexes. To solve these problems, this paper builds a multi-level fuzzy comprehensive evaluation model for the evaluation and optimal selection of diversion tunnels construction simulation schemes, and unites entropy weight and analytic hierarchy process (AHP) to calculate composite index weights. Through the comprehensive evaluation in a real-life diversion tunnels, this method is proved advanced and intuitive for giving objective evaluations and providing optimization suggestions for program development.

Application of Analytic Hierarchy Process in the Steel Industry

Through analysing the indexs of the steel industry supply chain financing default risk, the article establishes a multi-level fuzzy comprehensive evaluation model for the steel industry supply chain financing default risk. Application examples show that the model overcomes the defect of subjective evaluation. It’s a rational and effective tool to assess the default risk of the steel industry supply chain financing.

Preliminary Study on Indexes and Assessment Method for Power Grid Development Diagnosis

With integrated consideration of existing research on power grid development evaluation index system and requirements of power grid development diagnosis, a more comprehensive power grid development diagnostic index system is established from five aspects of power grid security and reliability, high efficiency, coordination, economics and social environment and more than 20 indicators. In addition, a new power grid development diagnostic evaluation method based on hierarchical analysis and multi-level fuzzy comprehensive evaluation is proposed in order to diagnose and assess power grid status quo and the actual level of development comprehensively, objectively and systematically ,which will help power grid enterprises conveniently to find the main reason of affecting the power grid and enterprise development and encourage enterprises to continuously improve the targeted improvement measures and the level of grid development.

Multi-Level Fuzzy Comprehensive Evaluation on the Classroom Teaching Quality of Sports Theory

Multi-Level Fuzzy Comprehensive Evaluation on the Classroom Teaching Quality of Sports Theory

Risk Assessment of Groundwater Contamination: A Multilevel Fuzzy Comprehensive Evaluation Approach Based on DRASTIC Model

Groundwater contamination is a serious threat to water supply. Risk assessment of groundwater contamination is an effective way to protect the safety of groundwater resource. Groundwater is a complex and fuzzy system with many uncertainties, which is impacted by different geological and hydrological factors. In order to deal with the uncertainty in the risk assessment of groundwater contamination, we propose an approach with analysis hierarchy process and fuzzy comprehensive evaluation integrated together. Firstly, the risk factors of groundwater contamination are identified by the sources-pathway-receptor-consequence method, and a corresponding index system of risk assessment based on DRASTIC model is established. Due to the complexity in the process of transitions between the possible pollution risks and the uncertainties of factors, the method of analysis hierarchy process is applied to determine the weights of each factor, and the fuzzy sets theory is adopted to calculate the membership degrees of each factor. Finally, a case study is presented to illustrate and test this methodology. It is concluded that the proposed approach integrates the advantages of both analysis hierarchy process and fuzzy comprehensive evaluation, which provides a more flexible and reliable way to deal with the linguistic uncertainty and mechanism uncertainty in groundwater contamination without losing important information.

Airport Noise Environmental Impact Assessment Based on the Multi-Level Fuzzy Comprehensive Evaluation

In order to solve the problems of multifactor and fuzziness of airport noise environmental impact, the multilevel fuzzy cluster analysis for comprehensive assessment of airport noise environmental impact was proposed in this paper. The method is a quantitative analysis of the environmental impact of airport noise, which integrates Fuzzy Cluster Analysis with Analytic Hierarchy Process (AHP). The results show that the method is better reflecting of fuzziness between the levels of noise environmental pollution, better solving the problem of weight factors of various indicators, and making assessment results more reasonable. This work can provide decision support for airport noise manager.

Risk Assessment of Smart Grid Cyber Security Based on Multi-Level Fuzzy Comprehensive Evaluation Method

This paper proposes a comprehensive risk assessment index system for Smart Grid cyber security, including five first-level indicators such as entity and environment security, management security, data security, software security and communication security. Every indicator includes specific sub factors. The cyber security risks for Smart Grid are emphatically analysed. The paper integrates AHP with Fuzzy evaluation method, through which the weight of each layer and the risk assessment matrix are determined. Practical case study shows that cyber security level of the Smart Grid is good, but it needs improvement and reinforcement in organization system, data signature, data backup and intrusion detection system.

Comprehensive Evaluation Research on Human-Machine Relationship of CNC Machining Center in Furniture Manufacturing

Considering the characteristics of a furniture production, a man-machine relationship assessment system is developed for its CNC Machining Center by using the multi-level fuzzy comprehensive evaluation method. The evaluation factors are chosen based on the ergonomic principles. The membership function is determined by using expert survey method. The final evaluation result can be got by a fuzzy aggregation algorithm. An example is examined using the fuzzy comprehensive evaluation method. It is a simple and scientific way to access the man-machine relationship of CNC machining center in a furniture enterprise.

Extended Multi-Level Fuzzy Comprehensive Evaluation Model of Bridges Maintenance based on Fuzzy Set

Extended Multi-Level Fuzzy Comprehensive Evaluation Model of Bridges Maintenance based on Fuzzy Set