Assessment Index System Research Articles

Research on fire risk assessment model in commercial and residential communities

The causes of fire in commercial and residential communities are complex, rescue is difficult, once a fire occurs, the loss is difficult to estimate, and a reasonable fire risk assessment needs to be made. This paper establishes a complete index system for fire risk assessment in commercial and residential communities, establishes a cloud model by using the ISM-Shapley value method, evaluates the safety level of a commercial and residential community in Jinan, and puts forward corresponding countermeasures, which provides a quantifiable analysis method for fire risk analysis.

LESÕES ESPORTIVAS COMUNS E SERVIÇOS DE SAÚDE EM IDOSOS

ABSTRACT Introduction: The integration of sports into medicine is to optimize the allocation of health resources, improve the efficiency of health services, and promote the health level of the entire population through the mutual integration and coordination of resources from sports and medical systems. Objective: Investigate and analyze the common factors of sports injuries in the elderly after participation in sports, providing a reference for the scientific formulation of sports programs and health promotion services in the elderly. Methods: The risk factors of sports injuries in elderly people aged 60-75 years in three cities were investigated, including organization management, sports environment, sports items, and other factors were statistically analyzed. The risk assessment index system of sports injuries in the elderly and the types and causes of common sports injuries were summarized by statistical methods. Results: There are many reasons for sports injuries in the elderly, including subjective and objective factors, but the common sports injuries come mainly from subjective factors, mainly pelvic girdle, knee, and ankle. Conclusion: It is necessary for the elderly to participate in physical exercise, fully recognizing the risks of the possible sport to take preventive measures for sports injuries. Once there is a sports injury in the process of exercise, measures should be taken the first time for intervention treatment. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

Study on Ecological Environmental Impact Assessment Index System of UHV AC Transmission and Transformation Engineering-A Case Study of 1000kv UHV Transmission and Transformation Engineering from Zhangbei to Xiongan

Ultra-high voltage (UHV) power grid is a new transmission and transformation technology, which has the advantages of large transmission capacity, long transmission distance, low line loss, saving land resources and obvious economic benefits. Taking the Zhangbei-xiongan 1000kv AC high voltage power transmission and transformation project as an example, this paper constructs the eco-environmental index system of the UHV transmission and transformation project by using the pressure-state-response model, and constructs a set of 18 indexes eco-environmental index system, it mainly includes three aspects: the eco-environmental pressure index caused by the construction behavior in different construction stages of power transmission and transformation projects, and the eco-environmental state index given by on-the-spot investigation and study of projects, based on the construction unit on the ecological environment impact management response measures given indicators. The index system provides a basis for comprehensive and systematic evaluation of the impact of power transmission and distribution projects on the ecological environment, and finally draws the corresponding project construction evaluation conclusions. In this paper, the eco-environmental impact assessment index system of power transmission and transformation engineering has certain universality, and it has certain reference and guiding significance for the ecological environment evaluation of power transmission and transformation engineering.

2000-2018年内蒙古沙区“生态-经济-社会”复合系统脆弱性演变及关键影响因素

PDF HTML阅读 XML下载 导出引用 引用提醒 2000-2018年内蒙古沙区“生态-经济-社会”复合系统脆弱性演变及关键影响因素 DOI: 10.5846/stxb202203100586 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金面上项目(41971253) Vulnerability evolution of the ecological-economic-social complex system and the key influencing factors in the sandy region of Inner Mongolia from 2000 to 2018 Author: Affiliation: Fund Project: National Natural Science Foundation of China(41971253) 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:在气候变化和人类活动共同影响下,沙区"生态-经济-社会"复合系统快速变化,为沙漠化治理及区域可持续发展带来了严峻的挑战。因此,揭示沙区"生态-经济-社会"复合系统脆弱性演变规律,辨识影响脆弱性演化的关键因素及区域差异对沙区可持续管理具有重要意义。以内蒙古自治区为研究区,利用"暴露-敏感-适应"评估模型构建沙区"生态-经济-社会"复合系统脆弱性评价指标体系,将空间主成分分析与时空地理加权回归模型相结合,探讨2000-2018年内蒙古"生态-经济-社会"复合系统脆弱性时空演变及关键因素作用机制。结果表明:(1)脆弱性及暴露度、敏感性和适应性三个维度在空间上均有较强的异质性特征,脆弱性具有整体分散、局部聚集的分布格局;暴露度的空间分布为中部高,两边低;敏感性的空间分布为西部高,东部低;适应性的高低值分布与脆弱性相反。(2)脆弱性的变化在总体上呈现大部分区域降低,局部区域升高的趋势,显著升高区域主要聚集在内蒙古南部地区。(3)影响脆弱性分布的因素在每年均有所不同,但总体上植被覆盖度、沙漠化程度、气象指数等生态指标是影响脆弱性显著变化区域的主要因素。 Abstract:Under the combined effects of climate change and human activities, the rapidly change of the ecological-economic-social complex system in sandy areas poses serious challenges to desertification control and regional sustainable development. Therefore, it is of great significance to reveal the vulnerability evolution law of the ecological-economic-social complex system in sandy region, identify the key factors affecting the vulnerability evolution for the sustainable management of sandy region. In this paper, the Inner Mongolia Autonomous Region was taken as the research area, and the VSD (Vulnerability Scoping Diagram) model was used to construct the vulnerability assessment index system for the ecological-economic-social complex system. The spatial principal component analysis and spatio-temporal geographically weighted regression model were combined to explore the spatio-temporal evolution of the vulnerability of the ecological-economic-social complex system and the influencing mechanisms of the key factors from 2000 to 2018. The results show that: (1) vulnerability, exposure, sensitivity and adaptability have strongly heterogeneous characteristics in space, and vulnerability has a distribution pattern of overall dispersion and local aggregation; the spatial distribution of exposure is high in the middle and low on both sides; the spatial distribution of sensitivity is high in the west and low in the east; the distribution of high and low values of adaptability is the opposite of vulnerability. (2) Vulnerability changes generally show a trend of decreasing in most regions and an increasing trend in some areas. The areas with vulnerability significantly increase mainly concentrated in the southern Inner Mongolia. (3) The factors that affect the distribution of vulnerability are different each year, but in general, ecological indicators such as vegetation cover, desertification degree and meteorological indices are the main factors that affect significant change in vulnerability. 参考文献 相似文献 引证文献

Research on the Implementation Effect of Equity Incentive in Liquor-making Industry: Taking Shanxi Fen Wine as an Example

As an important tool to effectively alleviate agency problems and reduce business risks, equity incentive has been widely used in the liquor industry. This paper takes the equity incentive of Shanxi Fen wine as the research object, adopts the event research method to analyze the stock price effect after the implementation of the equity incentive, and analyzes the long-term financial performance by picking out the financial indicators such as growth ability, profitability, debt paying ability and operating ability, so as to spy out the implementation effect of the equity incentive of Shanxi Fen wine. The research shows that the market is generally satisfied with the expectation of Shanxi Fen wine's equity incentive scheme and the company's profitability, operation and development capabilities have been significantly improved after the implementation of equity incentive. The analysis found that Shanxi Fen wine equity incentive scheme still has some problems, such as less incentive, single performance evaluation index, shorter incentive period, etc. Based on this, specific measures are put forward, such as increasing the share of equity incentives, increasing incentives, enriching the index assessment system, and prolonging the cycle of equity incentives, in order to further improve the implementation effect of equity incentives.

Flood Risk Assessment and Management in Urban Communities: The Case of Communities in Wuhan

The likelihood and uncertainty of severe rains and flooding in the middle basin of the Yangtze River have grown due to global warming and growing urbanization. A flood risk assessment index system is built based on resilience theory to assess community flood risk in a significantly changing environment, with communities serving as the primary body to manage flood risk in cities. The flood risk level of communities in Wuhan from 2011 to 2020 was assessed using the Analytic Hierarchical Process (AHP) and Dempster–Shafer (DS) evidence theory, utilizing an example of the typical Wuhan community. The findings indicate that: (1) The weight of hazard-causing factors is the largest and has the greatest influence on the risk of flooding in the community. (2) When looking at time series, the risk of hazard-causing factors gradually rises, while the risks associated with systemic governance, protective works, and community vulnerability steadily decline. Building resilient communities and enhancing flood risk management capability should be priorities for the government, local communities, and citizens.

Risk Evaluation of Overseas Mining Investment Based on a Support Vector Machine

Analyzing the general method of establishing a support vector machine evaluation model, this paper discusses the application of this model in the risk assessment of overseas mining investment. Based on the analysis of the risk assessment index system of overseas mining investment, the related parameters of the optimal model were ascertained by training the sample data of 20 countries collected in 2015 and 2016, and the investment risk of 8 test samples was evaluated. All 8 samples were correctly identified, with an error rate of 0. South Africa’s mining investment risk in 2016 was assessed using the risk evaluation model for overseas mining investment based on a support vector machine, and it was rated as grade IV (general investment risk). The results show that the model can provide a new solution for the judgment and deconstruction of the risk of overseas mining investment.

Risk Level Assessment and CO Prediction of Underground Mines for Poisoning and Asphyxiation Accidents

To effectively prevent the occurrence of poisoning and asphyxiation accidents in underground mines, this paper establishes an evaluation index system for the factors influencing accidents, constructs a combined assignment model to solve the problem of low accuracy of assignment results caused by a single algorithm, predicts the CO concentration after blasting because CO poisoning is the main cause of accidents, explores the accuracy of different time series prediction methods, and projects the required ventilation after blasting to ensure the safe operation of personnel. Firstly, starting from “man-machine-environment-management”, social factors are introduced to build an evaluation index system. Secondly, three combinatorial allocation models were compared, namely rough set theory–G1 method (RS-G1), entropy method–G1 method (Entropy-G1), and CRITIC method–G1 method (CRITIC-G1). The best model was selected and the allocation rating model was constructed in combination with the cloud model, and the mine risk level was evaluated by using the model. Thirdly, the GM(1,1) model, the quadratic exponential smoothing method, and the ARIMA model were compared by calculating posterior differences and errors, and the method with the highest accuracy was selected for predicting CO concentration. The results show that the inclusion of social assessment indexes in the assessment index system makes the consideration of assessment indexes more comprehensive. The RS-G1 combined assignment model achieved higher accuracy than other combined assignment models, and the GM(1,1) model had the highest accuracy and the best prediction effect. The results of the study can help provide targeted prevention and management measures for poisoning and asphyxiation accidents in underground mines.

Identification and optimization methods for delineating ecological red lines in Sichuan Province of southwest China

Ecological red lines (ERLs) are one of innovation regional ecological management systems, and a major strategy of construction of ecological civilization of China. Assessments of ecosystem services and the ecological sensitivity of the environment are the conventional methods for ERL delineation, which cannot quickly identify protection patterns, and also lacks the recognition of geological and geographical processes mechanism and influencing factors of ERLs. However, this omission may lead to inaccurate ERL delineation in mountainous areas. This study constructed an ecological–geological (eco–geo) environment vulnerability assessment index system to quickly identify protection patterns and optimize conventional ERL, taking Sichuan Province of Southwest China as the study region. The results showed that the conventional ERL covered 148,000 km2, accounting for 30.45 % of the total area. The extreme and severe vulnerability areas in the eco–geo environment together covered 189,700 km2, accounting for 39.10 %. The conventional ERL was almost completely included in the extreme vulnerability zone. Two optimization methods were analyzed by overlaying the vulnerability zone (extreme/extreme and severe) on nature reserves and the conventional ERLs. The first scheme covered an area of 188,600 km2 and 238,400 km2 for extreme and extreme and severe vulnerability, respectively; this reflected a more comprehensive vulnerability and protection pattern. The second scheme covered 197,600 km2 and 241,700 km2 for extreme and extreme and severe vulnerability, respectively, and could rapidly identify the vulnerability zones and protected areas. The study found that the geological and geographical processes in mountainous areas were the key factors shaping the ERLs. The assessment and the two schemes on provincial scale were practical, referential for similar mountainous area of China, and also be applied to other scales, serving the comprehensive management of ERL and the regional ecological security.

Dust Explosion Risk Assessment for Dry Dust Collector Based on AHP-Fuzzy Comprehensive Evaluation

Dry dust collectors are a typical dust and gas coexistence space. Dust explosion risk assessments should be performed for effective prevention and control of dust explosion accidents. In this paper, a dust explosion risk assessment index system for dust removal systems was constructed following the dust characteristics and the actual operation of a dry dust collector. The proposed system consisted of three first-level indexes (dust explosion characteristic parameters, environmental parameters in the dust collector box, use state of explosion prevention and control device) and seven second-level indexes (dust explosion sensitivity, dust explosion severity, temperature in the dust collector box, pressure difference between inlet and outlet, operating state of spark detection, operating the explosion venting disc, and operating state of the lock gas ash discharge valve). The analytic hierarchy process was adapted to calculate the weight of each index. Additionally, a dust explosion risk assessment model for the dust removal system was constructed using the fuzzy comprehensive evaluation method to form a set of dust explosion risk assessment methods suitable for dry dust collectors. The risk of explosion was assessed at level II through the use of paper powder with a particle size of 75 μm, which means this method is reliable.

Assessment of distributed new energy-bearing capacity of new power systems with multisource complementary characteristics

A reasonable assessment of the bearing capacity of distributed power-generation sources in power systems is a key guarantee for the construction of new power systems with new energy sources as the core. In view of the fact that the current distributed new energy-bearing capacity assessment method has not yet established a systematic assessment index system and has not taken into account multisource complementarity, a new distributed energy-bearing capacity assessment method for power systems that takes into account the characteristics of multisource complementarity was proposed. First, a distributed new energy-bearing capacity assessment framework was constructed and the influencing factors of distributed energy-bearing capacity were analysed. Second, a multidimensional distributed power bearing-capacity assessment index system and calculation method considering thermal stability, short-circuit current, voltage deviation, and harmonics was proposed and the assessment process of distributed energy-bearing capacity was proposed. Finally, the validity and applicability of the proposed method were verified through actual case simulation.

The Application of Posterior Error Criterion to Dynamic Equivalence Evaluation

The scale and complexity of the power system are increasing, which carry out a lot of difficulty and effort to detailed simulation of the whole system, so effective dynamic equivalence is the premise of the modeling of electromagnetic transient simulation of large power systems. This paper targeting at the present situation of lack quantization standard in the dynamic equivalence, this paper took the posterior error criterion of grey forecasting model into the Dynamic Equivalence Evaluation, then proposed more detailed and exactly quantization standard appraisal index system, further perfect the error evaluation system of dynamic equivalence efficiency.

A novel knowledge management method about integrated grounded theory for performance assessment of green building construction engineering

ABSTRACT The green building construction is an important part of the green building, and setting up a suitable assessment model about green building construction engineering has great significance. This paper combined green construction and project management knowledge for performance assessment of green building construction engineering and used integrated method of grounded theory and G2 (G2 empowerment method) entropy method as a knowledge management strategy to build the performance assessment index set. Firstly, based on the existing literature and semi-structured interview data, grounded theory coding technology is used to identify the influencing factors of green construction performance to determine the assessment index set and corresponding assessment standards and formed the assessment index system. Then, the subjective and objective weighting methods are combined, and the G2 entropy method is used to carry out comprehensive weighting. This method has the advantages of comprehensive weighting and avoids the problem of how to allocate the proportion of subjective and objective weight in traditional comprehensive weighting. Finally, a novel knowledge management comprehensive method of performance assessment about green building construction engineering was presented. The detailed methods and steps presented in this paper can provide reference for performance assessment and knowledge management of green building construction engineering.

The Construction of an Assessment Index System of Law-Based Governance of a City in China

Constructing an assessment index system of law-based governance of a city provides a data basis and an empirical basis for China’s urban construction of the rule of law and highlights its characteristics in the era of big data. A thorough understanding of the theory of the rule of law is required in order to establish this index system. The establishment of the index system needs to be based on a deep understanding of the theory of the rule of law. In particular, it is important to understand the relationship between the core content of the rule of law and the law-based governance of a city, and then to determine the connotation of law-based governance of a city. This serves as the starting point for constructing the index system. At the same time, it is necessary to have a solid grasp of the index theory, adhere to the method of index setting, break down the concept of law-based governance of a city into different levels of indicators according to the types and attributes of the indicators and continue to visualize and operationalize them until the content can be measured. As a whole, this forms a complete assessment index system. Of course, the content of the index system is not fixed and needs to be constantly tested and adjusted in practice.

Research on the comprehensive evaluation of the value of water conservancy heritage based on expert knowledge and public cognition: a case study of Red Flag Canal

Abstract The scientific construction of the indicator system and the objective evaluation method that apply to the value of water conservancy heritage are of great significance to the promotion and development of water culture and water conservancy heritage conservation. This study constructs an index system for water conservancy heritage value assessment from seven first-level indexes, such as engineering value, economic value, social value, ecological value, artistic value, innovative value and heritage value, builds a fuzzy comprehensive evaluation model based on expert knowledge and public perception and carries out empirical evidence with the example of China's Red Flag Canal. The results show that the overall value of the Red Flag Canal was 94.68 points, which reached a high level. The result is consistent with that the Red Flag Canal was successfully declared as the national water conservancy heritage, thus verifying the scientificity and rationality of the index system and the evaluation method constructed by this study.

The compensation incentive effect of athletes: A structural equation model

This study explores the compensation incentive effect of athletes. Based on the related literature, we proposed theoretical hypotheses on the compensation incentive effect and established an assessment index system of the compensation incentive effect for athletes. A structural equation model was used to test the survey data of 352 athletes in six provinces to discover the truth of the compensation incentive effect. The results suggested that direct economic compensation satisfaction, direct non-economic compensation satisfaction, and indirect non-economic compensation satisfaction had significant positive effects on the compensation incentive effect of athletes, while indirect economic compensation satisfaction showed no significant effect. Moreover, the evaluation results of athletes' compensation incentive effect showed that direct economic compensation satisfaction contributed the most to the influence factor of the compensation incentive effect. Therefore, the evaluation of athletes' compensation incentive effect should focus on variables of direct economic compensation satisfaction, i.e., basic compensation satisfaction, bonus income satisfaction, and subsidy satisfaction. Finally, some strategies and recommendations were suggested to improve the compensation design for athletes.

Research on benefit distribution mode of regional integrated energy system considering both direct and indirect benefits

A co-benefits assessment index system is developed for the introduction of a regional integrated energy system (RIES). Following which, by analyzing the interest demands of each stakeholder and determining the beneficiaries of each unit benefit, the initial benefit distribution model based on attribution relationship is established. According to the networked relationship of stakeholders, a fair and reasonable cost sharing mechanism for RIES is established. On this basis, the benefit–cost (B/C) analysis is carried out from various stakeholders to evaluate the commercial feasibility. According to the simulation results of a numerical study, the project as a whole and all stakeholders have B/C values greater than 1 to coordinate and balance related issues such as system income distribution according to the designed benefit distribution mechanism. In this way, the win-win situation of overall interests and individual interests can be realized.

A Study on the Suitability of the Assessment Standard for Healthy Building to Kindergartens: Take Assessment Standard for Healthy Building (T/ASC 02--2021) as an Example

As a special building, the kindergarten has limitations to use the assessment standard for the healthy building (T/ASC 02—2021) to evaluate. Firstly, the standard assessment index system lacks environmental construction technology for children's needs. Secondly, some assessment indexes do not match the building characteristics of kindergartens. The accuracy of the kindergarten assessment results will be affected by the assessment index system. Therefore, it is necessary to break through the limitations of kindergarten health performance assessment and build a health performance assessment index system for kindergartens. The assessment index system of healthy kindergarten should meet the health performance characteristics of the kindergarten, and its health performance assessment focuses on the activity space quality of the kindergarten.

A Distributed Power Consumption Metering Assessment Method for the Energy Internet

This paper proposes a distributed power supply consumption metering assessment index system and method for rural energy internet, which can be used in the dispatch and design departments of power companies. The method can solve the problems that exist in the existing distribution system, such as the lack of basis for siting and capacity determination and access of large-scale distributed power units, and the single and one-sided assessment index of distributed power consumption capacity. Firstly, analysing the characteristics of the new rural power grid, considering the impact of the uncertainty of distributed power supply output, organically combine the influencing factors of power quality, power supply reliability and operational safety and establish a multi-dimensional index evaluation system to measure the ability of distributed power sources to consume. Finally, the improved fuzzy estimation is used to determine the consumption capacity of the rural grid. The data of a rural grid operation is analysed by case study to accurately assess the consumption capacity of distributed power sources in the area.

Ecological environment health assessment of lake water ecosystem system based on simulated annealing-projection pursuit: A case study of plateau lake

• A DPSR framework model was proposed and covers 26 multi-scale indexes. • Ecosystem health assessment was built from environment, ecology and socioeconomic system. • Ecological health, environmental pollution and water resources were combined to system. • Simulated annealing projection pursuit was introduced as assessment method. • The key factors affecting the Ecological environment health were identified. A lake ecological environment health assessment index system is constructed based on DPSR (Driving forces-Pressure-State-Responses) framework. The simulated annealing projection pursuit (SA-PP) algorithm, which can analyze high-dimensional data, is introduced and provides a new way for lake ecological environment health evaluation and decision-making. Qionghai, a typical plateau lake in Sichuan, China, is taken as an example to introduce the application of this assessment system. The results suggest the water ecological environment of Qionghai basin is in a relatively healthy state from 2017 to 2020. The state subsystem has the largest weight, and the important influencing factors affecting the health of lake water ecological environment are the water environment characteristics, ecological characteristics and pressure subsystem in the State subsystem. Zooplankton Simpson diversity index, chlorophyll a, NH 3 -N and total nitrogen are the main influencing factors of lake ecosystem health in the lake ecosystem health system. The restriction factor of the pressure subsystem is per capita daily domestic water consumption. Therefore, improving water quality and controlling water consumption intensity become important factors to improve the health of water resources and water environment in Qionghai basin. This study provides a new way for lake ecological environment health evaluation and decision-making.