Fuzzy Matter-Element Evaluation Method for Analysis of Debris Flow Risk Assessment

2012 ◽  
Vol 446-449 ◽  
pp. 3058-3061 ◽  
Author(s):  
Chun Tan ◽  
Jian Ping Chen ◽  
Yu Zhen Pan ◽  
Cen Cen Niu ◽  
Li Ming Xu
Keyword(s):  
Risk Assessment ◽  
Debris Flow ◽  
Information Entropy ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Practical Application ◽  
Element Analysis ◽  
Matter Element Analysis ◽  
Concept Of Information

Based on the principle of fuzzy matter-element analysis, the concept of information entropy is introduced to establish a fuzzy matter-element evaluation method. This method is utilized to comprehensively evaluate the degree of debris flow. The classifications of debris flow are regarded as the objects of matter-element and their indexes for evaluation as well as the corresponding fuzzy values are used to construct the composite fuzzy matter-elements. By calculating the relevancy the comprehensive evaluation of debris flow can be carried out. This model is applied to analyze the degree of debris flow in the practical application. The application shows that the model is effective and practical.

Risk Assessment of Reservoir by Fuzzy Comprehensive Evaluation Method Based on Information Entropy

2013 ◽  
Vol 438-439 ◽  
pp. 1612-1618
Author(s):  
Yong Jia Song ◽  
Cong Cong Jin ◽  
Xian Cai Zhang ◽  
Jing Li
Keyword(s):  
Risk Assessment ◽  
Information Entropy ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment Method ◽  
Assessment Model ◽  
Risk Level ◽  
Entropy Weight ◽  
Weighting Method

This paper proposes a new risk assessment model on account of the fuzziness and uncertainty of risk factors in the reservoir after earthquake. The paper adopts methods of information entropy and fuzzy mathematics to assess risk level of the model. After analyzing the statistical data of earthquake-damaged reservoirs, we present comprehensive weight composed of importance and improved entropy weight. Base on comprehensive weight, we can adopt membership function to establish single factor evaluation of the model. Moreover, we combine fuzzy weighting method to assess risk level of a reservoir after earthquake. The result shows that risk level of the reservoir is high-risk. The case study verifies the practicability and rationality of the risk assessment method. Therefore, the method could be applied in the emergency rescue and reinforcement for reservoir after earthquake.

A Highway Safety Level Evaluation Model Based on Matter Element Analysis

2011 ◽  
Vol 219-220 ◽  
pp. 412-415
Author(s):  
Zhi Bin Qin ◽  
Zhao Hui Liu ◽  
Ye Ying Peng
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Highway Safety ◽  
Element Analysis ◽  
Safety Level ◽  
Factors Affecting ◽  
Comprehensive Evaluation Method ◽  
Matter Element Analysis ◽  
Highway Network

Previously, factors affecting freeway network safety under all operational circumstances have been divided hierarchically. Consequently, evaluation indicators for highway safety have been established on the basis of specification and twin statistic data. We present a novel multi-objective comprehensive evaluation method for the safe operation of segments of a highway network, together with the calculation formula, based on matter element analysis. In addition, the method is evaluated using an example.

The Research of Design Method on Green Modular that Oriented Construction Machinery

2014 ◽  
Vol 1049-1050 ◽  
pp. 828-832
Author(s):  
J.R. Yang
Keyword(s):  
Evaluation Method ◽  
Modular Design ◽  
Comprehensive Evaluation ◽  
Design Method ◽  
Fuzzy Comprehensive Evaluation ◽  
Element Analysis ◽  
Construction Machinery ◽  
Comprehensive Evaluation Method ◽  
The Finite Element Analysis ◽  
Factor Evaluation

The aim of this study was to obtain the method of the green design and modular design that oriented construction machinery products. A variety of modern design tools such as the finite element analysis software package and optimize design package and a two-factor evaluation fuzzy modelare used to analyze and Evaluation the green degree and the module degree of the construction machinery. Some modern mathematical tools such as AHP and fuzzy comprehensive evaluation method are used to calculate and evaluate the green degree and the module degree in construction machinery design. The proposed design method can meet the requirements of the green degree and the module degree of the construction machinery.

Study of Subway Construction Risk Assessment Based on the Triangular Fuzzy Numbers

2011 ◽  
Vol 243-249 ◽  
pp. 6312-6318
Author(s):  
Ge Liu ◽  
Feng Li
Keyword(s):  
Risk Factors ◽  
Risk Assessment ◽  
Evaluation Method ◽  
Fuzzy Numbers ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Indicator System ◽  
Triangular Fuzzy Numbers ◽  
Subway Construction ◽  
Membership Matrix

According to the characteristics of subway construction in Tianjin, a risk assessment indicator system has been established in subway construction. On the basis of traditional AHP (Analytic Hierarchy Process), the introduction of the concept of triangular fuzzy numbers evaluates the weight of risk factors in a more accurate and objective way. Adopting a fuzzy comprehensive evaluation mathematical model, by constructing membership matrix, the metro construction is not difficult to quantify the risk factors with the scientific evaluation methods. It can be proved that fuzzy comprehensive evaluation method used in subway construction process is a scientific, effective evaluation method.

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