scholarly journals Integrated Environmental Effect Assessment on Large Coal-Electricity Production Base and Sustainability Strategy: A Case in Xilin Gol, China

2020 ◽  
Vol 12 (15) ◽  
pp. 5943
Author(s):  
Chenxing Wang ◽  
Yan Yan ◽  
Jiaxun Li ◽  
Yuan Quan ◽  
Shanlin Li ◽  
...  
Keyword(s):  
Large Scale ◽  
Water Environment ◽  
Assessment Model ◽  
Electricity Production ◽  
Electric Networks ◽  
Assessment Index ◽  
The North ◽  
Sustainability Strategy ◽  
Assessment Index System ◽  
Comprehensive Framework

Coal-electricity production base (CEPB) is an integrated plant comprising of coal mining, power conversation and chemical treatment in a particular area. As a representative of the national energy structure’s adjustment and development, a CEPB could support the West-to-East Gas Transmission Project and manage electric networks. However, the national large-scale CEPBs are always distributed in arid and semi-arid regions in the north of China, which has already led to ecological and environmental problems to local areas. This paper aims at making a comprehensive assessment on CEPBs by building an assessment index system and an assessment model of the environmental effects of the large CEPB in Xilin Gol, China. The results showed that the integrated assessment result is 0.64, which reflects that the exploitation and construction of CEPBs have not severely damaged the ecological environment of Xilin Gol yet, but the water environment has been seriously disturbed and the damage to the atmosphere, soil and ecological system, as well as other potential ecological harm, cannot be ignored. Towards future sustainability, this paper provides five sustainable strategies which are established on a comprehensive framework, establishing monitoring mechanisms of the environmental impact process, devising metrics of sustainability and keeping regular assessment using fine management to continuously decrease the pollutants in production processes and meet goals of regional sustainable development.

Environmental Impact Analysis of Water Environment in Coal Mining Areas Based on Matter-Element Model

2010 ◽  
Vol 108-111 ◽  
pp. 403-408 ◽  
Author(s):  
Qi Liang Wang ◽  
Lei Wang
Keyword(s):  
Coal Mining ◽  
Large Scale ◽  
Impact Analysis ◽  
Water Environment ◽  
Element Model ◽  
Evaluation Index System ◽  
Assessment Model ◽  
Environment Impact ◽  
Mining Areas ◽  
Matter Element Model

In connection with the problems that coal mining accounts for water environment pollution and socio-economic development, the main factors was analyzed. From water environment system, ecological system and socio-economic system, corresponding evaluation index system was perfected and became fit for factual situation. Matter-element model of water environment impact evaluation was constructed and used to evaluate four large-scale coal mining areas. The results showed that assessment model in accordance with the objective reality. Compared with other evaluation models, matter-element model is more accurate and comprehensive. By matlab, a calculating program was made and can be dynamically amended.

Analytical model for assessing collapse risk during mountain tunnel construction

2016 ◽  
Vol 53 (2) ◽  
pp. 326-342 ◽  
Author(s):  
Guo-Hua Zhang ◽  
Yu-Yong Jiao ◽  
Li-Biao Chen ◽  
Hao Wang ◽  
Shu-Cai Li
Keyword(s):  
Risk Factors ◽  
Risk Assessment ◽  
Index System ◽  
Assessment Model ◽  
Tunnel Construction ◽  
Assessment Index ◽  
Assessment Index System ◽  
Geological Prediction ◽  
Tunnel Collapse ◽  
Mountain Tunnel

Risk management for safety in mountain tunnel construction is of great significance. However, existing research lags behind engineering applications. In this paper, the risk of mountain tunnel collapse is used as an example to illustrate a new assessment method based on case-based reasoning, advanced geological prediction, and rough set theory. First, the risk surroundings and risk factors involved in tunnel collapse are integrated and summarized, and a risk assessment index system is established for tunnel collapse. At the same time, because the dynamic response parameters obtained by the advanced geological prediction usually indicate a typical geological structure, sensitive response parameters are introduced in the assessment index system. Advanced risk assessment can be performed for tunnel sections at a certain distance ahead of the tunnel face. Second, the major risk surroundings and the advanced geological prediction results are analyzed for the tunnel under assessment. Cases with similar attribute characteristics are selected via comparison with previous cases. Attribute reduction and calculation of weights are subsequently performed for the risk surroundings and risk factors of similar cases based on the attribute significance theory of rough sets. Finally, index screening and objective weights are applied in the fuzzy comprehensive assessment model. The results of this paper can be used to improve the theoretical level and reliability of risk assessment in tunnel safety and serve as a reference for tunnel construction.

A SOMNN Model for Transport Risk Assessment of Hazardous Materials by Rail

2012 ◽  
Vol 629 ◽  
pp. 778-783
Author(s):  
Ke Pan ◽  
Shouan Guan
Keyword(s):  
Risk Assessment ◽  
System Analysis ◽  
Safety Management ◽  
Hazardous Materials ◽  
Economic Loss ◽  
Assessment Model ◽  
Assessment Index ◽  
System A ◽  
China National Petroleum Corporation ◽  
Assessment Index System

Railway siding for transport of hazardous materials is an important way in transporting of hazardous materials in China and they often result in catastrophic consequences for environment and society with a great deal of economic loss. Risk assessment for railway siding is an effective way to ensure its operational safety. This paper focuses on the application of self-organizing neural network (SOMNN) to assess the risk of the railway siding operational system and classify its risk factors. In this work, the system analysis method based on the characteristics of railway siding for hazardous materials is first used to establish the transport risk assessment index system. A comprehensive risk assessment model of railway siding has been developed with the SOMNN theory to improve present methods available for risk assessment of rail siding’s safety. A field case study about 15 railway slides for transporting of oil in Jilin broach center of China National Petroleum Corporation is undertaken so that the effectiveness of the proposed approach could be verified. The result is in line with the actual situation and indicates that this method used is feasible and rational. This model provides a new method for transport risk assessment of hazardous materials by rail. The method is also proved more efficient for both risk assessment and safety management. The work specified in this paper can be as reference to the assessment work in China.

Fuzzy Comprehensive Assessment of Air Material Suppliers

2014 ◽  
Vol 596 ◽  
pp. 164-168
Author(s):  
Zhong Lv
Keyword(s):  
Comprehensive Assessment ◽  
Assessment Model ◽  
Science Assessment ◽  
Effective Measure ◽  
Assessment Index ◽  
Comprehensive Theory ◽  
Assessment Index System ◽  
Main Factors ◽  
Set Up ◽  
Hierarchy Process

Science assessment to air material suppliers is an effective measure that insures cost controlling and safety operating of an airline. Through analyzing the main factors of the air material suppliers, this paper constructs an assessment index system of the air material suppliers. The weights of assessment indexes is determined by means of the analytical hierarchy process (AHP). A assessment model of air material suppliers based on fuzzy comprehensive theory has also been set up. The model is validated through example. This prove that the method can give an overall comprehensive assessment level of the air material suppliers.

The Application of Fuzzy Comprehensive Evaluation in Risk Assessment of Incremental Launching Bridge

2012 ◽  
Vol 204-208 ◽  
pp. 2028-2033 ◽  
Author(s):  
Zhong Chu Tian ◽  
Lei Yang ◽  
Tian Yong Jiang
Keyword(s):  
Risk Assessment ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment Model ◽  
Analytic Hierarchy ◽  
Assessment Index ◽  
Comprehensive Evaluation Model ◽  
Assessment Index System ◽  
Hierarchy Process

The risk factors of continuous incremental launching bridge during construction stage are specialized. The risk in incremental launching stage is analyzed and identified. A risk assessment index system is built. A fuzzy comprehensive evaluation model is developed. The results obtained from the risk assessment model verifies the validity and practicality of the developed method by the combination of analytic hierarchy process and fuzzy mathematics theory. Moderate risk assessment results are developed to provide references for incremental launching construction method.

Snow Disaster Risk Assessment in China with the Multi-Layer Fuzzy Comprehensive Evaluation Method

2013 ◽  
Vol 726-731 ◽  
pp. 913-916
Author(s):  
Chao Lv ◽  
Hui Li Gong
Keyword(s):  
Risk Assessment ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Disaster Risk ◽  
Assessment Model ◽  
Historical Case ◽  
Assessment Index ◽  
Disaster Risk Assessment ◽  
Assessment Index System

The snow disaster is one of the main disasters in prairie pastoral areas of China. Once the snow disaster occurs, it will cause the death of a large amount of livestock due to the starvation and freezing weather. Therefore, it is especially important to forecast the risk of the snow disaster scientifically and reasonably. This paper established the snow disaster risk assessment index system firstly, and then established the snow disaster risk assessment model based on multi-layer fuzzy comprehensive evaluation. Finally, the massive experiment monitors and the contrast confirmation with the historical case data, showed that this model is practical and feasible, which conducted a useful attempt to further improve snow disaster risk assessment ability in pastoral areas.

Assessment for Safety Capability of Mine Team Leader Based on AHP and GRA

2014 ◽  
Vol 522-524 ◽  
pp. 1452-1456
Author(s):  
Can Liu ◽  
Shui Cheng Tian ◽  
Jie Liu
Keyword(s):  
Decision Making ◽  
Analytic Hierarchy Process ◽  
Team Leader ◽  
Assessment Model ◽  
Team Leaders ◽  
Analytic Hierarchy ◽  
Assessment Index ◽  
Assessment Index System ◽  
Grey Relational ◽  
Hierarchy Process

Assessment index system for safety capability of mine team leaders is established to assess their safety capability accurately, after defining its concept. The system is comprised of two layers, with 5 indexes in the first-layer and 14 indexes in the second-layer. Furthermore, the relative weights of indexes are determined by analytic hierarchy process (AHP). The grey relational assessment model for safety capability of mine team leader is constructed based on the indexes system. The safety capability of 4 mine team leaders are assessed by the model, according to the sequences in their safety capabilities. Assessment for safety capability based on AHP and GRA could be a tool for evaluation and decision-making in mining enterprises.

Study on Novel Structures the Coordinated Development between Urbanization and Water Environment in Huzhou City, China

2012 ◽  
Vol 209-211 ◽  
pp. 1040-1047
Author(s):  
Shuang Shuang Ma ◽  
You Peng Xu ◽  
Yu Long Shao
Keyword(s):  
Comprehensive Evaluation ◽  
Water Environment ◽  
Entropy Method ◽  
Policy Implications ◽  
Coordinated Development ◽  
Assessment Index ◽  
Assessment Index System ◽  
Index Weight ◽  
Coordination Function ◽  
Coordination Degree

Taking Huzhou city as an example, the landscape spatial pattern and water quality were selected respectively as the space urbanization module and water environment level module, to construct the coupling coordination degree assessment index system. Entropy method was used to calculate the index weight and the comprehensive evaluation value of urbanization and water environment, and coupling coordination degree model to analyze the coordination degree between them. The results indicate that the coupling coordination degree between urbanization and water environment in the study period presented a fluctuation trend of deteriorating fist and improving afterwards, overall in barely coordination state, and the coordination function was weak. The coupling coordination types show a volatility trend in the way of urbanization lag-water environment retarded-urbanization lag. Analysis of the coordination between urbanization and water environment could provide theoretical bases and policy implications for achieving both goals of the urbanization level progress and water environment protection.

Safety Risk Assessment of Highway Special Maintenance Project Based on BP Neural Network

2011 ◽  
Vol 368-373 ◽  
pp. 3175-3179
Author(s):  
Wei Tian ◽  
Hui Min Li ◽  
Rui Qi Yan ◽  
Yun Xiang Hu
Keyword(s):  
Neural Network ◽  
Risk Assessment ◽  
Bp Neural Network ◽  
Safety Management ◽  
Construction Safety ◽  
Assessment Model ◽  
Risk Assessment Model ◽  
Safety Risk ◽  
Assessment Index ◽  
Assessment Index System

16 items of assessment indexes are selected to build up the safety risk assessment index system of special maintenance project according to the construction safety characteristics of highway special maintenance project, based on which, the safety risk assessment model of special maintenance project based on BP neural network is brought forward. The assessment model has been trained, checked and analyzed through example and it turns out that the effective safety risk assessment of highway special maintenance project can be calculated based on this model, which also supplies decision-making basis for the project safety management.

scholarly journals A Study on RB-XGBoost Algorithm-Based e-Commerce Credit Risk Assessment Model

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Weimin Yang ◽  
Lili Gao
Keyword(s):  
Risk Assessment ◽  
Credit Risk ◽  
Index System ◽  
Operating Characteristic ◽  
Evaluation Index System ◽  
Assessment Model ◽  
Risk Assessment Model ◽  
Assessment Index ◽  
Credit Risk Assessment ◽  
Assessment Index System

The current method’s e-commerce credit risk assessment is prone to poor data balance and low evaluation accuracy. An RB-XGBoost algorithm-based e-commerce credit risk assessment model is proposed in this study. The adaptive random balance (RB) method is used to sample and process the obtained data to improve the balance degree of the data. An assessment index system is constructed based on the processed data. Based on the risk evaluation index system and the XGBoost algorithm, this paper constructed an e-commerce risk assessment model and assessed the e-commerce credit risk using this model. The experimental results show that the proposed method has good data balance, a high kappa coefficient, and a large receiver operating characteristic (ROC) curve area, which can effectively improve e-commerce credit risk assessment accuracy.

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