Comprehensive Assessment of Assembling-Possibility of Products Based on Extensive Theory

2010 ◽  
Vol 102-104 ◽  
pp. 237-241
Author(s):  
Qi Dong Chen ◽  
Yan Nian Rui ◽  
Qing Zhang Chen ◽  
Zheng Xiao Hua ◽  
Lian Sheng Zhao

It is important to assembling-possibility of products for the DFA (Design For Assembling). Asembling factors is analyzed, and a matter-element model is deduced, the evaluation model of products design for assembling is established according to the extensive theory and superiority evaluating method, and the process of this method is discussed in detail. The example confirmed that the evaluating method is advanced and practicality. The present analysis is qualitative combining.

2019 ◽  
Vol 272 ◽  
pp. 01027
Author(s):  
Gaolei Liu ◽  
Ran Dai ◽  
Feng Zhang ◽  
Yanpeng Zhao ◽  
Chaoyue Zhang ◽  
...  

With the development of liquefied natural gas(LNG) port, as one of the crucial LNG port sitting process, the LNG terminal site’s condition assessment method has always received attention from experts, scholars concern more and more about the method’s practicality and reliability. In the traditional condition assessment method, due to the characteristics of the complex and extensive factors in the comprehensive assessment of the LNG terminal site, the assessment system is not comprehensive enough, or the assessment is too complex, the indexes are not easy to quantify, such problems are emerging. In view of the above reasons, the principal component analysis(PCA) method is used to transform the multi-indicators that affect the comparison of terminal sites into a few comprehensive indicators. A comprehensive evaluation model of the LNG terminal site based on cloud matter element theory and subjective and objective comprehensive weighting method was constructed. By the subjective and objective comprehensive weighting method, the comprehensive weight of each index is determined and the LNG terminal site comprehensive assessment standard cloud element model is constructed with the combination of cloud model and matter-element theory. The cloud matter-element correlation function is established to determine the degree of association between the matter element to be evaluated and the standard cloud matter element model. In order to eliminate random errors and improve the credibility of the results, the algorithm is used for multiple calculations and analysis to achieve the purpose of simultaneously giving the evaluation results and coefficients of credible degree. Finally, the reliability and rationality of the method are verified by an example.


2011 ◽  
Vol 204-210 ◽  
pp. 834-837 ◽  
Author(s):  
Ping Lv ◽  
Dong Liu ◽  
Fei Fei Zhao

Aiming at water security issues existed in water resources development and utilization, studied the water resources carrying capacities of fifteen farms in Jiansanjiang branch bureau in 2008. Used grey correlation analysis to establish evaluation indices system. Entropy theory was introduced into weight calculation. Synthesized evaluation results of traditional matter-element model, fuzzy comprehensive evaluation model and fuzzy matter-element model to grade water resources carrying capacities. The results show that water resources carrying capacities of Farm Shengli, Qindeli, Qianshao and Qianfeng are gradeⅠ; carrying capacities of Farm 859, Daxing, Qinglongshan, Qianjin, Honghe, Yalvhe and Nongjiang are gradeⅡ; carrying capacities of Farm Qixing, Chuangye, Hongwei and Erdaohe are gradeⅢ. The study achievements provide scientific evidences for water resources protection and sustainable utilization in Jiansanjiang branch bureau.


2013 ◽  
Vol 726-731 ◽  
pp. 744-749 ◽  
Author(s):  
Yong Chao Shi ◽  
Ai Wu Cao ◽  
Jin Wang

According to the extension of matter element, a quantitative evaluation model of dam risk analysis of multiple parameters is developed. Matter-element model was constructed to assess dam behavior by matter-element transform. The emergency capacity besides safety of dam and failure losses is taken into concerned during the analysis of risk of dam. Finally, a simple example shows that is more reasonable compared with traditional methods.


2016 ◽  
Vol 17 (3) ◽  
pp. 870-878
Author(s):  
Yue Zhang ◽  
Sen Peng ◽  
Xin-hua Zhao

Research into natural organic matter (NOM) removal in drinking water treatment processes is mostly independent, distributed, disconnected and unable to meet the needs of technology application; therefore, an assessment of the value of NOM treatment processes is necessary. In this paper, a hybrid evaluation model based on rough set theory and a matter-element model was used to evaluate the value of eight NOM removal processes. The counting process of the weighting factor did not include any subjective information which avoided the artificial factor deviation and made the evaluation more objective. The result indicated that in addition to the MIEX + coagulation + sedimentation + filtration (MCSF) treatment process, the rest of the NOM treatment processes had a certain value; the coagulation + sedimentation + filtration + adsorption (CSFA) and coagulation + sedimentation + filtration + membrane (CSFM) treatment processes had the highest values which meant that these treatment processes could remove the NOM in drinking water effectively. It also illustrated that the coagulation + sedimentation + adsorption + membrane (CSAM) treatment process had high feasibility, which has important significance for guaranteeing the safety of drinking water.


2013 ◽  
Vol 734-737 ◽  
pp. 3290-3294
Author(s):  
Zi Lin Xu ◽  
Ju Qin Shen ◽  
Bo Liu ◽  
Liang Tang ◽  
Feng Wang

The index system for the tourism value evaluation of the urban industrial heritage was constructed from four perspectives, including the value of locational factor, value of science and technology, value of humanistic emotions and the aesthetic value of tourism. The evaluation model for the urban industrial heritage was established on the basis of matter-element model and analytical hierarchy process.


2014 ◽  
Vol 638-640 ◽  
pp. 2419-2422
Author(s):  
Liang Tang ◽  
Ju Qin Shen ◽  
Bo Liu ◽  
Li Rong Bao ◽  
Zi Lin Xu

Against the background of Chinese construction enterprise constructing learning-oriented enterprise, this essay probes into the methods of evaluating the implementation effect of Chinese learning-oriented construction enterprise. The evaluation system of implementation effect of Chinese learning-oriented construction enterprise is constructed from four aspects, i.e. social satisfaction, interior operation, financial position as well as learning and growth and evaluation model of implementation effect is also built based on matter-element model.


2015 ◽  
Vol 737 ◽  
pp. 441-445
Author(s):  
Zhe Sheng Zhao ◽  
Bi Lin Shao

In view of the current situation that lacking of the guidance method on evaluation emergency ability for construction enterprises,This article uses the extension matter-element model to evaluate construction enterprise accident emergency ability. According to the time node characteristics of accident emergency ability,Using AHP for constructing the evaluation index system of accident emergency abilities of construction enterprises and determining the weight coefficient of each index ,Using extension theory to establish the evaluation model of construction enterprise emergency ability,and taking an example conducted evaluation and determined the accident emergency ability grade.


2014 ◽  
Vol 960-961 ◽  
pp. 375-381
Author(s):  
Feng Ren

In order to assess the operational efficiency of cogeneration heating system and measure the systems social, economic, energy-saving and environmental protection benefits in North China, an evaluation index system is built up after analyzing the influence factors which may impact the heating system operation. The association degree function of classical matter element method is improved. And then, an improved matter-element evaluation model is established, which not only can figure out the evaluation grade that heating system belongs to, but also can point out the direction of the further improvement work. Besides, the model has other merits, such as uncomplicated operation, good scalability and so on. Example indicates that this evaluation model has excellent applicability and operability.


2012 ◽  
Vol 594-597 ◽  
pp. 2945-2950
Author(s):  
Guang Yue Wang ◽  
Jan Wu Zhao

To solve the existing fuzziness in the grading of stability evaluation of geocell protected slope and inconsistent between evaluation result by single index and the fact, this paper establishes index system of the stability evaluation of geocell protection of slope and propose a method. First, two-grade Fuzzy Matter-element Model is established based on the index system. Second, factor weights of evaluation index are calculated by AHP. Finally, the grade of the stability of geocell protection of slope is obtained based on Correlation Degree. Analysis results show that based on comprehensive consideration of subjective factors and objective factors, this method is effective and agrees well with engineering practical.


Sign in / Sign up

Export Citation Format

Share Document