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

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.

2014 ◽  
Vol 513-517 ◽  
pp. 4239-4243
Author(s):  
Wang Wei ◽  
Dai Guang Long ◽  
Lv Chen

Aiming at the increasingly severe problem of University Campus Safety, this paper uses AHP based on the analysis and study of daily management of universities to establish five indexes as first criteria layer, which are school safety management, the management of counselor, the family factor, the factor of college student, social safety environment, and nineteen safety evaluation indexes as second criteria layer. So the Stratified hierarchical structure model can be built. As a result the fuzzy comprehensive evaluation model can be established. More over this paper applies MATLAB to solve the calculation of the model. Through the empirical analysis the evaluation result is consistent with the actual situation. Finally the result shows that the model have an important guiding significance to safety management work in colleges and universities, besides it is feasibility and operability.


2018 ◽  
pp. 172-182 ◽  
Author(s):  
Shengmin CAO

This paper mainly studies the application of intelligent lighting control system in different sports events in large sports competition venues. We take the Xiantao Stadium, a large­scale sports competition venue in Zaozhuang City, Shandong Province as an example, to study its intelligent lighting control system. In this paper, the PID (proportion – integral – derivative) incremental control model and the Karatsuba multiplication model are used, and the intelligent lighting control system is designed and implemented by multi­level fuzzy comprehensive evaluation model. Finally, the paper evaluates the actual effect of the intelligent lighting control system. The research shows that the intelligent lighting control system designed in this paper can accurately control the lighting of different sports in large stadiums. The research in this paper has important practical significance for the planning and design of large­scale sports competition venues.


2021 ◽  
pp. 1-13
Author(s):  
Guoyi Chen ◽  
Jiansheng Zhang ◽  
Shangmin Zhang ◽  
Bangquan Yan

With the fierce competition under the background of knowledge-based economy, tourism enterprises are increasingly aware that they must turn their focus from traditional products to customers for the sake of survival and development. Integrating the customer relationship management and knowledge management, the customer knowledge management (CKM) has aroused higher attention from the tourism enterprises. As for how to determine the factors influencing the Customer knowledge management competence (CKMC) of tourism enterprises and their weights, an index system was established for evaluating CKMC of tourism enterprises based on the balanced score card (BSC) and knowledge management process, the weight design and consistency check of the indexes were implemented using the analytic hierarchy process (AHP), and the overall evaluation value and concrete index scores at all levels were obtained via the fuzzy comprehensive evaluation model. In the end, the scientificity and operability of the evaluation model were verified through an empirical analysis of China Youth Travel Service (CYTS). The results show that: (1) The business process, customer communication, system support, and market performance are important level I indexes used to measure the CKMC; (2) The key Level II factors influencing the CKMC of enterprises include customer knowledge sharing mechanism, timeliness of customer communication, degree of importance attached by senior leadership, and customer acquisition rate; (3) The evaluation model based on AHP and fuzzy evaluation method can objectively describe the overall up-to-standard degree of enterprises’ CKMC, and clearly identify the strengths and weaknesses. This research shows that the combination of AHP and fuzzy evaluation-based method is capable of more scientific and complete evaluation of CKMC, compensates for the deficiencies of single evaluation model, and provides a new method for the effective improvement of enterprises’ CKMC.


2011 ◽  
Vol 71-78 ◽  
pp. 769-777 ◽  
Author(s):  
Cheng Yi ◽  
Jing Shi ◽  
Xiao Long Zhao ◽  
Wen Hai Zhao ◽  
Qiang Liu ◽  
...  

As pointed out in this paper that, for a common building material, it is relatively difficult to judge its green degree in comparison with that for a special function material because the judgment factors are comprehensive. The relevant factors which affect the greenness index such as physic expenditure, pollution, economic are analyzed and all influential factors are discussed. For the common building materials, their different inter-restrain factors are divided in administrative level and the weight of factors is determined according to the AHP theory. Meanwhile, the assessment scale and criteria for the factors, and the grading standard for the material green degrees are given in the paper. Based on the fuzzy comprehensive evaluation theory, a green degree evaluation model is established. Finally, the reasonability of the model is testified with the instances introduced in the paper.


2012 ◽  
Vol 482-484 ◽  
pp. 2390-2395
Author(s):  
De Qiang Li

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.


2004 ◽  
Vol 471-472 ◽  
pp. 132-135 ◽  
Author(s):  
Ai Bing Yu ◽  
L.J. Zhong ◽  
Xin Li Tian

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.


2012 ◽  
Vol 235 ◽  
pp. 282-287
Author(s):  
Shao Qiong Qi

Based on the characteristic of higher vocational college,This paper analyzes the present situation of internal control in railway vocational college, takes the empirical analysis of internal control by the internal control evaluation model based on fuzzy comprehensive evaluation method, and proposes the following solutions according to the internal control problems of railway vocational college: (1)improve internal control environment by strengthening the organizational construction, management level, and so on; (2) enhance control activities by improving internal account control and implementing budget management; (3)pay attention to risk management; (4)strengthen internal and external supervision.


2012 ◽  
Vol 174-177 ◽  
pp. 3328-3333
Author(s):  
Chao Wang ◽  
Hai Bin Ma ◽  
Chuan Qin Yao

The critical condition evaluation of BT mode is adopted to balance rights and benefits between government and investor. This paper aims to describe and analyze repurchasing radix design, yield design, and repurchasing mode design. Apply the fuzzy comprehensive evaluation to set the evaluation model, which includes 8 valuables factors reflected in the evaluation, and do the preliminary empirical research of the model and get the primary weighing of the 8 factors through the empirical research. By calculating and analyzing, the model truly reflects the interest relation between the government and the investor. Using this model, theoretical foundation to BT mode decision-negotiation is offered.


2014 ◽  
Vol 687-691 ◽  
pp. 206-211
Author(s):  
Wei Dong Zheng ◽  
Pei Hong Wang

In order to evaluate the performance of regenerative heater comprehensively and scientifically, the fuzzy comprehensive evaluation model of regenerative heater is proposed on the basis of fuzzy mathematic theory as well as the relevant background knowledge of the problem. In the fist-level fuzzy comprehensive evaluation model, the evaluation indicator system was established taking the influence of the turbine load into consideration. The definition of “excellence degree” was given to show the relative approach degree between the quantitative indicator and the excellent indicator. Membership functions of fuzzy evaluation set were constructed based on the excellence degree. Knowledge in terms of twenty experts’ experience and historical data was used to determine the indicator weight set. In the second-level indicator fuzzy comprehensive evaluation model, four composition operator models were selected to conduct the fist-level evaluation. The proposed model turns out to be feasible and effective by three typical load conditions.


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