Study on the Enrichment Degree of Coalbed Methane Based on the Fuzzy Comprehensive Evaluation

2010 ◽  
Vol 34-35 ◽  
pp. 815-819
Author(s):  
Xiang Zhen Yan ◽  
Bao Hui Wang ◽  
Xiu Juan Yang
Keyword(s):  
Coalbed Methane ◽  
Reference Model ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment System ◽  
Coal Bed ◽  
Coal Bed Methane ◽  
Fuzzy Mathematics ◽  
Mathematics Model ◽  
Fuzzy Mathematics Model

Considering the various influencing factors of enrichment of coal bed methane, the evaluation indexes of enrichment for coal bed methane are determined. The weight values of all factors indexes are given and the fuzzy mathematics model is established on the basis of the fuzzy mathematics. As a case study, the fuzzy mathematics model is applied to the assessment of enrichment of coal bed methane. The results show that the No.5 coal seam of Shan 2 of Shanxi formation in Daning-Jixian is a better enrichment area. The evaluation result performed on the basis of the fuzzy mathematics model is in good agreement with the measured result. The example indicates that the method is credible and has high precise. The assessment system established in the paper can be regarded as a reference model in coal bed methane exploitation potential assessment.

Design and Implement of the Urban Bridge Cluster Monitoring Online Assessment System

2013 ◽  
Vol 351-352 ◽  
pp. 1298-1301
Author(s):  
Ling Zhi Xi ◽  
Yi Li ◽  
Chang Zhou
Keyword(s):  
Monitoring System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Condition Assessment ◽  
Assessment System ◽  
Fuzzy Mathematics ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method ◽  
Communication Signal

Bridge health monitoring system (BHMS) is a package of technologies for structural monitoring, control, maintenance and management. Making use of the fusion of technologies from different disciplines, such as sensing, communication, signal processing, system identification, etc., the system is empowered to simultaneously get all kinds of information which reflect the safety conditions of bridge structure, and provide scientific proof for the analysis of bridge health. The assessment method is the core of the BHMS. In the conventional assessment procedure, there is significant influence of subjective factors involved. A feasibility study on the use of fuzzy comprehensive evaluation method in the bridge condition assessment is presented in this paper. The applications of fuzzy mathematics in condition assessment of bridges were discussed. Based on the research of present methods, analytical hierarchy process and fuzzy mathematics were integrated and applied in condition assessment of the project of main roads bridge Online Safety Monitoring Management System in Hangzhou (Phase II), a web-based urban bridge cluster monitoring system have been established. From a continuous beam bridge case study, it is observed that the fuzzy comprehensive evaluation method is capable of simulating the bridge condition evaluation process and has a good application.

Application of Fuzzy Comprehensive Evaluation Based on Entropy Method in the General Layout and Transportation Design Optimization

2011 ◽  
Vol 94-96 ◽  
pp. 210-213
Author(s):  
Qiu Ping Wang ◽  
Yan Hua Yu
Keyword(s):  
Program Evaluation ◽  
Information Entropy ◽  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Entropy Method ◽  
Evaluation Index ◽  
Fuzzy Mathematics ◽  
Objective Method ◽  
Fuzzy Weight

Based on the design of general layout and transportation optimization of a variety of factors, established a program evaluation system, the theory of fuzzy mathematics general layout and transportation design a comprehensive evaluation. For the fuzzy weight of each factor to determine the application of an objective method of empowerment from the perspective of information entropy to determine the factors enabling the weight of each evaluation index, fuzzy comprehensive evaluation of the results obtained. To detail with an example.

Analysis and Design of Intelligent Assessment System for Supplier Service Quality

2013 ◽  
Vol 712-715 ◽  
pp. 2686-2691
Author(s):  
Lian Jie Wang
Keyword(s):  
Service Quality ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Research Result ◽  
Fuzzy Comprehensive Evaluation ◽  
Relevant Information ◽  
Assessment System ◽  
Index Set ◽  
Analysis And Design ◽  
Paper Form

Through the study of the multiple dimensions of supplier, this paper comes up with an index system of evaluating the quality of supplier service quality and studies the analysis and design of intelligent assessment system for supplier service quality. Based on the extensive collection of survey research result, the paper form an index set with the KPI method, then form the fuzzy comprehensive evaluation model. This intelligent assessment system map all relevant information of supplier that an earlier entered to the evaluating indicator, then output the assessment result. With the help of this system, the purpose of providing reference for that managers make decisions is attain.

Rationality Fuzzy Comprehensive Evaluation of Mining Ventilation System

2013 ◽  
Vol 710 ◽  
pp. 808-811
Author(s):  
Lei Gang Miao ◽  
Yuan Yuan Niu ◽  
Dian Bao Yu
Keyword(s):  
Influence Factor ◽  
Comprehensive Evaluation ◽  
Ventilation System ◽  
Fuzzy Comprehensive Evaluation ◽  
Mine Ventilation ◽  
Fuzzy Mathematics ◽  
Widespread Application ◽  
Fuzzy Characteristic ◽  
Mathematics Method

Each influence factor had the obvious fuzzy characteristic in view of the mine ventilation system, the utilization fuzzy mathematics method has established one kind of new ventilation system rationality fuzzy mathematics judgment model, carried on the synthesis judgment to the ventilation system rationality, this judgment method could give the quota description direct-viewing to the system rationality. Finally, take some mining bureau's four ore as the example, has confirmed the model rationality. This method may operational strong, the effect be better, may in the general mine ventilation system appraisal the widespread application.

scholarly journals Routing Algorithm of Wireless Sensor Network and Robustness Analysis Based on Fuzzy Mathematics

2017 ◽  
Vol 13 (12) ◽  
pp. 85 ◽  
Author(s):  
Ying Xiang ◽  
Miaochao Chen ◽  
Xiaohong Zhuang ◽  
Xiaoxing Li
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Routing Algorithm ◽  
Robustness Analysis ◽  
Fuzzy Comprehensive Evaluation ◽  
Wireless Sensor ◽  
Fuzzy Mathematics ◽  
Comprehensive Evaluation Method

<p style="margin: 1em 0px;"><span lang="EN-GB"><span style="font-family: Times New Roman; font-size: medium;">In order to reduce the energy consumption and enhance the robustness of wireless sensor network (WSN), this paper proposes a hierarchical clustering routing algorithm based on fuzzy mathematics (HCRAFM). To make a comprehensive analysis of WSN, it is also necessary to detect the robustness of the network. Facing the multiple random variables, the traditional robustness detection models assume that all nodes have the same weight, making it impossible to quantify the analysis indices or obtain accurate results. Thus, the fuzzy mathematics theory was introduced to the WSN robustness detection, forming a fuzzy comprehensive evaluation method. The simulation results show that the HCRAFM strikes a load balance between WSN nodes, extends the life cycle of each node, and prolongs the service life of the network. In addition, the proposed algorithm is proved to have sound robustness and strong applicability.</span></span></p>

The Application of Fuzzy Comprehensive Evaluation to Cutting Sequences' Optimization of Multi-Feature Part

2011 ◽  
Vol 188 ◽  
pp. 662-666
Author(s):  
Zhe Li ◽  
Min Li Zheng ◽  
Jia He ◽  
Jun Jian Ming
Keyword(s):  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Machining Process ◽  
Fuzzy Mathematics ◽  
Cutting Sequences ◽  
Comprehensive Evaluation Model ◽  
Science Management ◽  
Cutting Sequence ◽  
Set Up

The fuzzy comprehensive evaluation which is one of the important embranchment of fuzzy mathematics is often used in the field of science management and decision, but less used in the machining process. Based on the fuzzy mathematical theory, we put forward the establishing process of fuzzy comprehensive evaluation model, and then set up the three-grade fuzzy comprehensive evaluation model of cutting sequence. Three cutting sequences of multi-feature bearing chock component have been evaluated, the evaluation results have verified the rationality and trueness of the model. The application and dissemination of the fuzzy comprehensive evaluation will have active significance in the machining process.

Fuzzy Mathematics Applied to Heavy Metal Pollution in the Marine Environment, the Calculation of Water Quality Assessment - A Case Study of Lianyungang Marine

2011 ◽  
Vol 356-360 ◽  
pp. 2124-2130
Author(s):  
Wen Bin Chen
Keyword(s):  
Water Quality ◽  
Heavy Metal ◽  
Environmental Pollution ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Comprehensive Evaluation ◽  
Standard Form ◽  
Fuzzy Comprehensive Evaluation ◽  
Fuzzy Mathematics ◽  
Membership Matrix

Reference fuzzy mathematics of fuzzy comprehensive evaluation method, Select a representative indicator of pollutants to establish fuzzy comprehensive evaluation index system to evaluate the virulence of Lianyungang marine heavy metal pollution levels; by the monitoring data to establish indicators of each factor on the degree of membership at all levels of the standard form a membership matrix, then make the weight factor multiplied by the membership matrix, get the fuzzy product, obtain a comprehensive evaluation set which indicating that water quality standards for water quality at all levels of membership level, reflecting the ambiguity of comprehensive water quality level, then based on the message obtain the integrated environmental pollution of Lianyungang Marine, provide the scientific basis of environmental pollution control for Lianyungang Marine.

Evaluation of Jujube Beverage Prescriptions with Fuzzy Mathematics

2011 ◽  
Vol 271-273 ◽  
pp. 573-576 ◽  
Author(s):  
Han Gao ◽  
Su Fang Fu
Keyword(s):  
Citric Acid ◽  
Sensory Evaluation ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Fuzzy Mathematics ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method

The effects of different prescriptions on the sensory evaluation of jujube beverages were investigated with the method of fuzzy comprehensive evaluation, in which taste, color, flavor, and body were taken as the evaluation factors with proper weights. The results showed that the fuzzy comprehensive evaluation method could differentiate the grades of different products objectively and accurately. The optimum prescription was found as follows: fermented jujube puree of 90%, sugar of 8%, honey of 0.5%, citric acid of 0.15% as well as proper compound stabilizer.

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