Study on the Quality Evaluation System of Belt Conveyor

2014 ◽  
Vol 685 ◽  
pp. 169-172
Author(s):  
Xu Ming Wang
Keyword(s):  
Evaluation System ◽  
Quality Evaluation ◽  
Element Model ◽  
Belt Conveyor ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Relational Degree ◽  
Quality Evaluation System ◽  
Matter Element Model ◽  
Hierarchy Process

The belt Conveyor is widely used in all kinds of machanics, so the quality evaluation of belt conveyor is very necessary. Extenics theory is frequently used to build matter-element model. This paper uses theory of matter elements analysis to establish the mathematical models for the quality evaluation of belt conveyor, presents an evaluation regulation, calculates the relational degree, and define the weights of evaluation indexes with the analytic hierarchy process. Finally, the quality grade of the awaiting evaluation belt conveyor is established.

Quality Evaluation of Belt Conveyor Based on Extenics Theory

2013 ◽  
Vol 694-697 ◽  
pp. 2960-2963 ◽  
Author(s):  
Chen Liu ◽  
Xu Ming Wang
Keyword(s):  
Quality Evaluation ◽  
Element Model ◽  
Belt Conveyor ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Quality Grade ◽  
Relational Degree ◽  
Matter Element Model ◽  
Hierarchy Process

Extenics theory is used to establish the matter-element model for the quality evaluation of the belt conveyor. Introducing the relational function in the extension set theory to calculate the relational degree, defining the weights of evaluation indexes with AHP (the analytic hierarchy process), and so the quality grade of the awaiting evaluation belt conveyor can be obtained. Taking a type of belt conveyor as an example to study the practical application of the proposed method, the results show that the method possesses a certain practicability. The method can give a reasonable evaluation on the quality of belt conveyor.

Application of Extenics Theory to Accuracy Evaluation of Machining Center

2013 ◽  
Vol 397-400 ◽  
pp. 135-139
Author(s):  
Chen Liu ◽  
Xiang Li Bu
Keyword(s):  
Set Theory ◽  
Element Model ◽  
Accuracy Evaluation ◽  
Practical Application ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Machining Center ◽  
Relational Degree ◽  
Matter Element Model ◽  
Hierarchy Process

The matter-element model for the accuracy evaluation of the machining center is established based on extenics theory, the accuracy evaluation indexes of machining cente are made of multiple elements. The relational degree is calculated by introducing the relational function in the extension set theory, and the weights of evaluation indexes are defined with AHP (the analytic hierarchy process), so the awaiting evaluation machining center is determined though the accuracy grade. A type of machining center as an example is studied the practical application of the proposed method, the result is reasonable and shows that the method possesses a certain practicability.

Study on Comprehensive Quality Evaluation System and Method of College Students

2013 ◽  
Vol 409-410 ◽  
pp. 1547-1550
Author(s):  
Ying Yao ◽  
Xing Meng ◽  
Hong Yuan Zhang
Keyword(s):  
College Students ◽  
Analytic Hierarchy Process ◽  
Evaluation System ◽  
Quality Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
High Quality ◽  
Analytic Hierarchy ◽  
Quality Evaluation System ◽  
Hierarchy Process

Developing high-quality talents, who are needs by nation and society, is the fundamental task for institutions. And people more and more concern college students’ quality. This paper firstly introduces the related contents about college students’ comprehensive quality evaluation, and builds the evaluation index system, using the analytic hierarchy process to determine the weight of each index.

Evaluation of Professional Internships of Road and Bridge Specialty

2014 ◽  
Vol 533 ◽  
pp. 499-502
Author(s):  
Xiao Hui Xia
Keyword(s):  
Student Achievement ◽  
Evaluation System ◽  
High Speed ◽  
Quality Evaluation ◽  
Ahp Method ◽  
Analytic Hierarchy ◽  
Project Construction ◽  
Quality Evaluation System ◽  
Hierarchy Process

Today, high-speed development of hardware, software technology and project construction for the system will provide the technical conditions. This paper uses the Analytic Hierarchy Process (AHP) method designed scientific internships student achievement and the quality of road and bridge specialty internships and mentoring quality evaluation system.

scholarly journals Subjective Product Evaluation System Based on Kansei Engineering and Analytic Hierarchy Process

Symmetry ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1340 ◽  
Author(s):  
Yaxue Zuo ◽  
Zhenya Wang
Keyword(s):  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Subjective Evaluation ◽  
Reliability And Validity ◽  
Objective Evaluation ◽  
Product Evaluation ◽  
Kansei Engineering ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Hierarchy Process

Product evaluation is very important for product improvement and development, and subjective product evaluation determines customer’s evaluation of products to some extent, so the purpose of this study is to establish a reasonable subjective product evaluation system. In this study, we comprehensively determine the evaluation indexes based on Kansei engineering (KE), establish an overall product evaluation system by using analytic hierarchy process (AHP), and establish the subjective product evaluation system by classifying the evaluation indexes in the overall product evaluation system into “objective evaluation index” and “subjective evaluation index”, removing the objective evaluation indexes, and retaining the subjective evaluation indexes. Additionally, we select some modern chairs as experimental samples to verify the reliability and validity of this subjective product evaluation system by means of questionnaires. The experimental results show that, in this subjective product evaluation system, the subjective evaluation of the product is positively correlated with the “favorite” level of the product in comprehensive evaluation, and negatively correlated with the “least favorite” level of the product in comprehensive evaluation, indicating that this subjective product evaluation system realizes a symmetry between subjective product evaluation and comprehensive product evaluation. Therefore, it can be concluded that this subjective product evaluation system based on KE and AHP proposed in this study has reliability and validity, and can be used for product evaluation to judge the popularity of products and enhance the competitiveness of products.

Motion Performs Evaluation of a Numerical Machine Tool Based on Extenics Theory

2013 ◽  
Vol 433-435 ◽  
pp. 1161-1164
Author(s):  
Chen Liu ◽  
Xiang Li Bu
Keyword(s):  
Machine Tool ◽  
Evaluation Method ◽  
Element Model ◽  
Weight Coefficient ◽  
Numerical Control ◽  
Control Machine Tool ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Relational Degree ◽  
Control Machine

Abstract: In order to evaluate motion performs of a numerical control machine tool objectively, the matter-element model for the motion performs evaluation of the NC was established based on extenics theory, the motion performs evaluation indexes of NC was made of multiple elements. The relational degree was calculated by introducing the relational function in the extension set theory, and the evaluation indexes weight coefficient of NC were defined by using the 1-9 scale law in AHP (the analytic hierarchy process). A numerical control machine tool as a study object, the motion performs was studied by using the extenics theory. The result indicated that the motion performs of this NC was good, the evaluation method possesses a certain practicability.

scholarly journals Eutrophication Assessment Based on the Cloud Matter Element Model

2020 ◽  
Vol 17 (1) ◽  
pp. 334
Author(s):  
Yumin Wang ◽  
Xian’e Zhang ◽  
Yifeng Wu
Keyword(s):  
Cloud Model ◽  
Evaluation Process ◽  
Element Model ◽  
Analytic Hierarchy ◽  
Index Method ◽  
Comprehensive Index Method ◽  
Analytic Hierarchy Process Method ◽  
Matter Element Model ◽  
Hierarchy Process ◽  
Process Method

Eutrophication has become one of the most serious problems threatening the lakes/reservoirs in China over 50 years. Evaluation of eutrophication is a multi-criteria decision-making process with uncertainties. In this study, a cloud matter element (CME) model was developed in order to evaluate eutrophication level objectively and scientifically, which incorporated the randomness and fuzziness of eutrophication evaluation process. The elements belonging to each eutrophication level in the CME model were determined by means of certainty degrees through repeated simulations of cloud model with reasonable parameters of expectation Ex, entropy En, and hyper-entropy He. The weights of evaluation indicators were decided by a combination of entropy technology and analytic hierarchy process method. The neartudes of water samples to each eutrophication level of lakes/reservoirs in the CME model were generated and the eutrophication levels were determined by maximum neartude principal. The proposed CME model was applied to evaluate eutrophication levels of 24 typical lakes/reservoirs in China. The results of the CME model were compared with those of comprehensive index method, matter element model, fuzzy matter element model, and cloud model. Most of the results obtained by the CME model were consistent with the results obtained by other methods, which proved the CME model is an effective tool to evaluate eutrophication.

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