Effect Evaluation of Bench Blasting Based on Unascertained Measurement Model

2014 ◽  
Vol 1033-1034 ◽  
pp. 1377-1380
Author(s):  
Tie Jun Tao ◽  
Jian Hua Zhang ◽  
En An Chi ◽  
Ming Sheng Zhao ◽  
Qiang Kang
Keyword(s):  
Evaluation Model ◽  
Measurement Theory ◽  
Influence Factors ◽  
Measurement Model ◽  
Evaluation Index ◽  
Actual Situation ◽  
Effect Evaluation ◽  
Uncertainty Measurement ◽  
Bench Blasting ◽  
Index Weight

In order to resolve the uncertainty problem of influence factors in effect evaluation of bench blasting, the effect evaluation model of bench blasting based on uncertainty measurement theory was built, then this model was used to evaluate the bench blasting effect in Hongshuitai flat engineering. The evaluation results show that: the information entropy and confidence identifying criterion were respectively used to ascertain the evaluation index weight and identifying criterion, by these ways, the evaluation results of this model are more objective; and the evaluation index can be selected flexibly according to actual situation, the calculation of evaluation model is simple, so the evaluation results can offer decision basis for blasting workers to make timely adjustment of the blasting scheme.

Safety Evaluation in Emulsion Explosive Continuous Manufacturing Based on Unascertained Measurement Model

2014 ◽  
Vol 1033-1034 ◽  
pp. 1354-1357
Author(s):  
Ya Jun Luo ◽  
Ming Sheng Zhao ◽  
En An Chi ◽  
Tie Jun Tao
Keyword(s):  
Evaluation Model ◽  
Measurement Theory ◽  
Safety Evaluation ◽  
Measurement Model ◽  
Evaluation Index ◽  
Continuous Manufacturing ◽  
Actual Situation ◽  
Emulsion Explosive ◽  
Uncertainty Measurement ◽  
Index Weight

In order to resolve the problems that many units are intersect and mutual restraint in the safety evaluation of emulsion explosive continuous manufacturing, the safety evaluation model based on uncertainty measurement theory was built, then this model was used to evaluate the safety of emulsion explosive continuous manufacturing in one explosive industry. The evaluation results show that: the information entropy and confidence identifying criterion were respectively used to ascertain the evaluation index weight and identifying criterion, by these ways, the evaluation results of this model are more objective; and the evaluation units can be selected flexibly according to actual situation, the calculation of evaluation model is simple, so the evaluation results can offer decision basis for explosive industry to make good management.

Evaluation of Non-Coal Mines Safety Emergency Capacity Based on Unascertained Measurement Model

2014 ◽  
Vol 556-562 ◽  
pp. 4638-4642
Author(s):  
Cheng Lin Pan ◽  
Zhen Hong Yang ◽  
Xiao Fang He
Keyword(s):  
Coal Mine ◽  
Evaluation Model ◽  
Measurement Theory ◽  
Safety Evaluation ◽  
Measurement Model ◽  
Mine Safety ◽  
Evaluation Indexes ◽  
Coal Mine Safety ◽  
Uncertainty Measurement ◽  
Capability Evaluation

Based on the uncertainty measurement theory, considering evaluation indexes of monitoring, personnel positioning, emergency actions, compressed air self-help, water rescue and communication, a mining emergency combat capability evaluation model is built to solve the difficulty of non-coal mine safety evaluation. This model is proposed to many uncertainty factors of safety evaluation of non-coal mine, according to the actual situation, carries on quantitative analysis, calculates indexes’weight, conducts grade decision by confidence identification criteria, then derives results of non-coal mine safety evaluation. This method is used to evaluate a certain six systems of non-coal mine. Compared with expert appraisal conclusion, the result shows consistency, therefore uncertainty measurement model is reasonable.

Evaluation Model of Aircraft Maintenance Mode Based on Improved AHP

2012 ◽  
Vol 605-607 ◽  
pp. 308-313
Author(s):  
Jiu Sheng Chen ◽  
Chen Liu
Keyword(s):  
Evaluation Model ◽  
Mode Selection ◽  
Evaluation Index ◽  
Scale Selection ◽  
Standard Procedures ◽  
Hierarchy Model ◽  
Group 3 ◽  
Index Weight ◽  
Optimal Evaluation ◽  
Maintenance Mode

By analyzing Maintenance Significant Item (MSI) standard procedures of Maintenance Steering Group-3(MSG-3), building optimal evaluation index of maintenance mode selection, an improved hierarchy model based on MSG-3 is established for evaluation of maintenance mode. Scale selection and layer weight confirmation is improved to solve the sort of index weight in evaluation. It makes maintenance mode selection more reasonable. The hierarchy model is implemented on .NET platform. The simulation result proves the validity of the method.

An Evaluation Model of Enterprise Informatization Level Based on Grey Whitenization Weight Cluster Analysis

2011 ◽  
Vol 189-193 ◽  
pp. 823-829
Author(s):  
De Ling Yang ◽  
Wan Ming Chen
Keyword(s):  
Cluster Analysis ◽  
Index System ◽  
Evaluation Model ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Enterprise Informatization ◽  
Grey Incidence Analysis ◽  
Index Weight ◽  
Incidence Analysis

According to the existing insufficiency of researches of enterprise informatization level evaluation, building an evaluation model of enterprise informatization level based on grey whitenization weight cluster analysis. First, based on the existing research, build an evaluation index system of enterprise informatization level. Then, by using grey incidence analysis idea, put forward a method to determine index weight. And then, construt an evaluation model of enterprise informatization level based on grey whitenization weight cluster analysis. Finally, test the validity of the model through the application example.

scholarly journals Attribute Synthetic Evaluation Model for the CBM Recoverability and Its Application

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Xiao-gang Xia ◽  
Yun-feng Yang
Keyword(s):  
Evaluation Model ◽  
Influence Factors ◽  
Coal Bed ◽  
Target Area ◽  
Actual Situation ◽  
Calculation Methods ◽  
Basic Premise ◽  
Similar Weight ◽  
Development Practice ◽  
Synthetic Evaluation

The coal-bed methane (CBM) recoverability is the basic premise of CBM development practice; in order to effectively evaluate the CBM recoverability, the attribute synthetic evaluation model is established based on the theory and method of attribute mathematics. Firstly, five indexes are chosen to evaluate the recoverability through analyzing the influence factors of CBM, including seam thickness, gas saturation, permeability, reservoir pressure gradient, and hydrogeological conditions. Secondly, the attribute measurement functions of each index are constructed based on the attribute mathematics theory, and the calculation methods of the single index attribute measurement and the synthetic attribute measurement also are provided. Meanwhile, the weight of each index is given with the method of similar number and similar weight; the evaluation results also are determined by the confidence criterion reliability code. At last, according to the application results of the model in some coal target area of Fuxin and Hancheng mine, the evaluation results are basically consistent with the actual situation, which proves that the evaluation model can be used in the CBM recoverability prediction, and an effective method of the CBM recoverability evaluation is also provided.

scholarly journals The evaluation of college students’ innovation and entrepreneurship ability based on nonlinear model

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Guihong Liang ◽  
Daniyal M. Alghazzawi ◽  
Nympha Rita Joseph
Keyword(s):  
College Students ◽  
Structural Model ◽  
Evaluation Model ◽  
Entrepreneurship Education ◽  
Colleges And Universities ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Ecological Environment ◽  
Index Weight ◽  
Innovation And Entrepreneurship

Abstract Under the background of ‘mass entrepreneurship and innovation’, Chinese colleges and universities have strengthened students’ entrepreneurial and innovative abilities. The article first analyses the reasons why applied universities should strengthen innovation and entrepreneurship education. On this basis, the evaluation index system of students’ innovation and entrepreneurship ability is constructed. The thesis uses the nonlinear structural model to complete the index weight setting. Finally, the paper verifies the effectiveness of the combined evaluation model through the data on innovation and entrepreneurship of college students in an university where applied. At the same time, the article proposes measures for optimising the ecological environment of innovation and entrepreneurship education for colleges and universities.

scholarly journals Study and Application of Safety Risk Evaluation Model for CO2Geological Storage Based on Uncertainty Measure Theory

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Hujun He ◽  
Yaning Zhao ◽  
Xingke Yang ◽  
Yaning Gao ◽  
Xu Wu
Keyword(s):  
Information Entropy ◽  
Risk Evaluation ◽  
Measure Theory ◽  
Evaluation Model ◽  
Risk Level ◽  
Uncertainty Measure ◽  
Geological Storage ◽  
Safety Risk ◽  
Uncertainty Measurement ◽  
Index Weight

Analyzing showed that the safety risk evaluation for CO2geological storage had important significance. Aimed at the characteristics of CO2geological storage safety risk evaluation, drawing on previous research results, rank and order models for safety risk evaluation of CO2geological storage were put forward based on information entropy and uncertainty measure theory. In this model, the uncertainty problems in safety risk evaluation of CO2geological storage were solved by qualitative analysis and quantitative analysis, respectively; uncertainty measurement functions for the relevant factors were established based on experimental data; information entropy theory was applied to calculate the index weight of factors; safety risk level was judged based on credible degree recognition criterion and ordered. This model was applied in three typical zones of Erdos and Hetao basins. The results show that uncertainty measure method is objective and reasonable and can be used as a new way to evaluate the safety of CO2geological storage sites in the future.

The Application on Risk Evaluation of Gas Explosion in Heading Face Based on Unascertained Measurement Model

2011 ◽  
Vol 304 ◽  
pp. 395-400
Author(s):  
Lian Sheng Liu ◽  
Guang Quan Zhang ◽  
Hui Wu
Keyword(s):  
Coal Mine ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Influence Factors ◽  
Measurement Model ◽  
Mine Safety ◽  
Security Level ◽  
Gas Explosion ◽  
Technical Standards ◽  
Evaluation Indexes

According to influence factors of heading face gas explosion in coal mine, selection principle based on evaluation indexes, combined with Coal mine safety regulations, Technical standards for gas extraction and experts advice, the multilevel evaluation sets of gas explosion risk in heading face was established, and the weight of each evaluation factors was determined by information entrop, finally, a coal mine was evaluated by using the unascertained measure evaluation model we had established, then security level of the coal mine was achieved. The results showed the unascertained mathematical theory was applied on comprehensive evaluation of the gas prevention and control in mine heading face, it had important significance to prevent the occurrence of gas explosions and other accidents in heading face.

scholarly journals Contribution Modeling on Condition Evaluation of Asphalt Pavement Using Uncertainty Measurement and Entropy Theory

2021 ◽  
Vol 2021 ◽  
pp. 1-10 ◽  
Author(s):  
Jue Li ◽  
Hui Wei ◽  
Yongsheng Yao ◽  
Xin Hu ◽  
Lei Wang
Keyword(s):  
Performance Evaluation ◽  
Evaluation Index ◽  
Pavement Performance ◽  
Entropy Theory ◽  
Minimum Entropy ◽  
Uncertainty Measurement ◽  
Measurement Function ◽  
Performance Evaluation Index ◽  
Index Weight ◽  
The Impact

In view of the deficiency that traditional pavement performance evaluation index did not consider the influence of their difference on weight, the grade of the evaluation index also did not take into account intermediate state and the impact of uncertainty on the evaluation results, a determination method of pavement performance evaluation index weight based on entropy theory was developed. The unascertained measurement function of evaluation index was performed by left-half ladder distribution, and unascertained measurement matrix was obtained. The index weight was calculated by minimum entropy theory, and the practicability of this method was verified through a concrete example finally. The results show that there were different weights in different samples, which depended on index measurement function and were the overall characterization of comprehensive measurement of every index. The method which is based on the given weighting factor did not conform to the engineering facts. It was difficult to identify the importance of the pavement performance evaluation index in different samples. The balance of the various indexes is better to be considered in the proposed method, and the comprehensive situation of pavement performance is really reflected, which improves the evaluation of the reliability.

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