Service Evaluation System Research Articles

RESEARCH ON CURRENT DIGITAL TRANSFORMATION STRATEGIES IN HIGHER VOCATIONAL COLLEGES

This article explores the connotation, effectiveness, challenges and response strategies of digital transformation in higher vocational colleges in the context of the current digital era. First, the impact of digital transformation on education and teaching methods, management models and talent training concepts is analyzed, and the importance and necessity of digital transformation are emphasized. Secondly, it summarizes the achievements of digital transformation in improving teaching quality, enriching teaching resources, and improving management efficiency. Then, the challenges faced by digital transformation such as campus infrastructure, student literacy, teacher capabilities, and teaching model innovation were pointed out, and strategies such as strengthening infrastructure construction, cultivating students digital literacy, and improving teachers digital teaching capabilities were proposed. Finally, it emphasized the importance of building a digital support system, establishing a service evaluation system and a data-driven governance system, and called on all parties to work together to promote the in-depth development of digital transformation and make more efforts to cultivate high-quality application talents and promote social and economic development. Great contribution.

Research on the construction and application of a smart library services maturity evaluation system based on CMM

PurposeSmart libraries are the result of the application of smart technologies in the era of digital intelligence. The establishment and improvement of its service evaluation system serve as indicators for evaluating the growth of smart libraries.Design/methodology/approachThis study introduces and improves the capability maturity model (CMM), creatively constructs a service maturity model specifically designed for smart libraries and combines the Delphi method with the analytic hierarchy process (AHP) to establish a service maturity evaluation system for smart libraries while calculating indicator weights. Finally, two representative smart libraries are selected as case studies, and an empirical application is conducted using the fuzzy comprehensive evaluation method.FindingsThe empirical study shows that the developed smart libraries service maturity evaluation system holds significant theoretical and practical value in evaluating smart libraries.Originality/valueEnhances the CMM and creatively constructs a service maturity model for smart libraries. Combines the Delphi method with AHP to establish a service maturity evaluation system while calculating indicator weights. Uses a fuzzy comprehensive evaluation method to evaluate two representative smart libraries. Demonstrates that the smart library services maturity evaluation system holds significant theoretical and practical value.

An Analysis of Performance Appraisal in China from The Perspectives of Scholars

The importance of performance appraisal is widely acknowledged, and its implementation varies from country to country. China's performance evaluation is conducted once a year, and a new version of the civil service evaluation system will be developed in 2020. This study examines academic perspectives on performance appraisal in China, which often vary in approach, content, incentive structures, and outcomes. Due to the lack of accuracy and subjectivity, the concept of "unscientific indicator design" in China has been greatly criticized. Chinese civil servants must have a high ideological and political quality, strong working ability, maintain a good work style, outstanding work performance, and achieve excellent results in the annual assessment. These criteria have a wide range and have the potential to lead to unfair evaluations that can negatively impact employee motivation. Many experts put forward opinions and suggestions on improving the content of performance appraisal in China; The Dutch academics suggest a transparent and detailed workflow system for registering and measuring performance, while the Brazilian academics suggest that employee performance should be taken seriously during evaluation. This requires recognizing strengths and weaknesses, making suggestions for improvement, and identifying their career prospects based on the results of the performance review. This study mainly examines the scholars' views on the similarities and differences of performance evaluation. In addition, it assesses current concerns within the appraisal system. This data will provide the basis for the exploration and development of broader, more scientific and logical performance evaluation systems.

Factors Influencing on the Evaluation System of Cold Chain Logistics Services for Agricultural Products in Guangxi Province, The People’s Republic of China

The objectives of this study were: (1) To study the factors that affect the evaluation system of cold chain logistics services for agricultural products in Guangxi Province, the People’s Republic of China. (2) To study the relationships between influence factors and the evaluation system of cold chain logistics services for agricultural products in Guangxi Province, the People’s Republic of China. (3) To build a model of relationship between quality management and the evaluation system of cold chain logistics services and propose suggestion for improving the evaluation system of cold chain logistics services for agricultural products in Guangxi Province, the People’s Republic of China. The study employed a mixed research methodology. In the quantitative analysis section, a questionnaire survey was conducted using simple random sampling. In the qualitative part of the analysis, in-depth interviews were conducted with eight senior managers from agricultural production departments, logistics management companies, fresh agricultural product sales companies, hotels, and government departments. The data analysis utilized statistics including frequency, percentage, mean, standard deviation, and structural equation model. Major Findings: the factors influencing the evaluation system of cold chain logistics services for agricultural products in Guangxi Province were examined. The identified influencing factors included agricultural product cold chain logistics quality management, logistics environment, and transportation efficiency. It was found that agricultural product cold chain logistics quality management has a significant positive impact on the logistics environment, transportation efficiency, and agricultural product cold chain logistics service evaluation system. At the same time, the logistics environment and transportation efficiency have a significant positive impact on the agricultural product cold chain logistics service evaluation system. This study presents the issues with the development of the cold chain logistics service evaluation system for agricultural products in Guangxi, along with countermeasures and suggestions for improvement.(1)Full utilization of existing resources to promote industrialization and modernization of fresh agricultural product logistics; (2) Development of a systematic agricultural product cold chain logistics system to support the agricultural product industry; (3)Strengthening the construction of cold chain supply chains for urban and rural agricultural products; (4)Expediting the introduction of energy-efficient and environmentally sustainable long- and short-distance cold chain transport vehicles; (5)The application of information technology is To be encouraged with a view to enhancing the efficiency and transparency of cold chain logistics.

Catalyzing the Success of Implementation of After-School Physical Activity Program in Primary School under the “Double-Reduction” Policy

The implementation of “Double-Reduction" policy creates a suitable external environment for the further development of after-school physical education services. In this study, literature review, questionnaire and interview methods are used as the main research methods to investigate the development status of after-school physical education services in urban primary schools in Guilin under the “double-reduction" policy environment, and to analyze and discuss the main influencing factors of after-school physical education services, such as coverage, contents, form and duration, participation and service mode, as well as quality and evaluation. The results revealed that: Under “double-reduction" policy, the after-school PE service coverage of primary schools in Guilin needs to continue to expand, and should strive to reach full coverage; Parents and students have strong demand for diversified after-school PE services, but there is a shortage of PE teachers, insufficient benefit guarantee for teachers to participate in after-school services, and the lack of quality and evaluation system. The paper suggests that relevant government departments should formulate after-school PE service policies to strengthen guidance, integrate high-quality after-school PE resources to participate in after-school service by purchasing services, strengthen the motivation of PE teachers to participate in after-school service, construct a reasonable after-school PE service evaluation system, and improve the quality of after-school PE service.

Intelligent performance evaluation of e-commerce express services using machine learning: A case study with quantitative analysis

Amidst the robust development of the service economy and information technology, the information age has significantly transformed consumption concepts and service demands. The requirements for logistics services from customers have become increasingly stringent. Beyond price and speed, quality has steadily emerged as the most crucial factor. When evaluating express services, experts primarily choose indicators from an enterprise perspective, mainly overlooking customer perception. The purpose of this paper is to establish a key index system for assessing the quality of express services aimed at improving the service quality of express deliveries within the development mode of intelligent logistics. In terms of methodology, we proposed a quantitative and qualitative e-commerce logistics service evaluation system. Specifically, we developed a key index system for assessing the quality of express services based on the theory of the six senses and the selection from an index library at first. And then, we ascertained the weight of each index in the evaluation by analyzing the proportion of customer comments. We employed analysis methods of machine learning, text data processing, mathematical statistics, and big data technology to determine the evaluation index and evaluation model of express service. Finally, our primary findings from the empirical verification and analysis of a real express enterprise indicate that this evaluation model can effectively assess the quality of express services. Our model can evaluate the current service quality and predict the quality of future services. We have derived some interpretations and conclusions based on these analyses and findings. Firstly, the level of customer perception is of great importance in the evaluation of express service quality. Secondly, our model can provide valuable feedback for express enterprises to improve their services. Lastly, we proposed corresponding improvement strategies to enhance the service quality of express enterprises under the intelligent logistics development mode.

A Service Ecosystem Model for Improving Healthcare Service Accessibility in Primary Care: A Micro Level Perspective

Access to healthcare is one of the fundamental aspects of the health system. Everyone has the basic right to access the best possible health services without any form of discrimination. Accessibility is one of the measures in the context of social sustainability in healthcare, which refers to the capacity of a healthcare system to promote a better quality of life and enhance the overall well-being of a community (Mehra & Sharma, 2021). In a large developing country like Indonesia, the difficulties surrounding healthcare services are significantly intensified. Extensive and widespread healthcare access disparities pose significant challenges. These include inefficiency, limited accessibility, a lack of interoperability among relevant stakeholders, and various other obstacles. Despite recent efforts to enhance healthcare access, substantial factors remain contributing to the inconsistent delivery of services. These encompass fragmented and silos healthcare systems and a lack of integration (Kementerian Kesehatan Indonesia, 2021). Access is a concept that encompasses multiple dimensions. Various aspects of access can be evaluated in relation to the availability of health services, the utilization of health services, or the outcomes derived from health services (Gulliford et al., 2002). However, the conceptualization of access to healthcare services in Indonesia remains unclear, highlighting the challenges in measuring the health service monitoring and evaluation system. Not all aspects are measurable and have suitable measures (Kementerian Kesehatan Republik Indonesia, 2021). To assess access accurately, it is essential to consider a comprehensive set of measures that encompass the characteristics of services, providers, and systems, aligning them with the capabilities of individuals, households, and communities (Levesque et al., 2013). Keywords: Service Ecosystem, Value Co-Creation, Healthcare Services, Healthcare Accessibility.

Regulation and optimization of cultivated land in different ecological function areas under the guidance of food security goals-a case study of Mengjin County, Henan Province, China

China’s arable land is facing the dual constraints of increasing “non-grain” and tightening ecological control. However, extreme emphasis on food production or excessive attention to ecological protection cannot effectively solve the practical problems of cultivated land utilization. In this paper, evaluation indexes were selected from the aspects of ecological service, landscape integrity, ecological sensitivity, etc., and ecological importance evaluation system for territory space was constructed. The ecological importance of territorial space was divided into three ecological functional areas, namely, the extremely important regions, the relatively important regions and the general regions. The morphological characteristics of cultivated land use in different ecological function areas were described systematically, and the main problems of cultivated land use in different regions were analyzed. On the basis of ensuring the ecological security of territorial space, this paper puts forward the regulation and control plan of cultivated land in different ecological functional areas aiming at food security, and makes an empirical study with Mengjin County as the case area. The results showed that: under the guidance of food security objectives, the implementation of different types of cultivated land remediation programs according to the problems existing in different ecological functional areas could guarantee food security to the greatest extent and amplify the ecological and environmental effects of land remediation. By means of land consolidation and ownership adjustment, the abandoned farmland in general and relatively important ecological regions can be restored for food use, which can not only enhance the food supply capacity, but also without causing damage to the ecological environment. There is a large area of arable land in the ecologically extremely important regions. Large-scale ecological conversion will have a certain impact on food security supply. Promoting ecological farming is an important way to resolve the contradiction between food safety production and ecological environment protection. This study can provide reference for decision making of arable land consolidation in the new period.

IMPACT OF CLINICAL PATHWAY IMPLEMENTATION OF LAPAROSCOPIC APPENDECTOMY ON LENGTH OF STAY, HOSPITAL COST AND PATIENT HEALTH OUTCOME AT EMC PEKAYON HOSPITAL

The most important goal in health services is to produce patient health outcomes that benefit patients and continue to prioritize the quality of health services. The results of the interviews conducted found that referrals from insurance agents also decreased due to problems related to the variety of services that have an impact on increasing service costs. The purpose of this study was to determine the impact of implementing a clinical pathway as a tool for quality and cost control on length of stay, hospital costs, patient health outcomes in groups that implement and do not implement clinical pathways. This study took place at the EMC Pekayon Hospital with a population of all medical record files of patients who had a diagnosis of appendicitis with laparoscopic appendectomy surgery in the period 2021 to November 2022 who met the inclusion criteria, namely 69 patients. Clinical pathway is the independent variable and length of stay, hospital cost, patient health outcome is the dependent variable. The research design used is analysis with qualitative in-depth interviews and documentation studies. The results showed that the implementation of the clinical pathway had an impact on the length of stay, hospital costs and patient health outcomes. The implications of this research in theory will prove the impact of the implementation of research variables and managerially will further improve the service evaluation system in hospitals to improve service quality and cost efficiency.

Construction And Analysis of Service Satisfaction Survey

According to the Seventh National Population Census Bulletin, China has entered an aging society, "aging" problem is very prominent. In the face of the growing elderly population, society for the "pension" demand is increasing. The survey shows that the proportion of urban residents willing to support the elderly at home has been gradually reduced, and the proportion of community elderly care and elderly care institutions has increased. But the big gap and unbalanced supply of the pension market have become a serious problem, which brings more opportunities and challenges. Now, what we pursue is not only simple "the old has to support, the old has to depend on" more is one kind "the old has to support, raises has the excellence" the retirement pattern. This article is based on the data collected from the "Market Research and Analysis Competition" questionnaire, based on AHP, Maslow's Hierarchy Theory of Demand and Customer Satisfaction Theory combined with SERVQUAL(Service Quality) model, this paper constructs the service evaluation system of elderly care institutions.

Digital transformation of citizens’ evaluations of public service delivery: evidence from China

Thanks to the development of digital technologies and their applications in public service delivery, ratings by citizens of service quality have been transforming from paper/phone surveys to digital interfaces, similar to what has happened in e-commerce. How does digitalization drive the change in ratings by citizens? Are citizens more satisfied when they rate public services online? We provide empirical answers to these questions based on data from the government service evaluation system in a Chinese city. We found that digital interfaces facilitate the behavior of citizens making evaluations and boost citizen satisfaction compared with offline channels. Specifically, interfaces displayed on mobile applications significantly facilitate evaluations by citizens and improve citizen satisfaction. The results provide theoretical and practical implications for understanding the digital transformation of public service ratings.

Does change in the scoring system impact service evaluation? Evidence from Booking.com

PurposeIn September 2019, Booking.com changed from the smiley-based scoring system (2.5–10) to the purely 10-point evaluation system (1–10). The smiley-based service evaluation is based on the multi-dimensional (M-D) system, whereas the purely 10-point service evaluation is based on the single-dimensional (S-D) system. This paper aims to focus on how a change in review posting policies impacts service evaluations regarding review generation and distribution.Design/methodology/approachThe authors exploit the natural experiment using Booking.com when the site changed its scoring system from a multidimensional smiley-based service evaluation system to an S-D scoring system. The authors collected online reviews posted on two travel agencies (Booking.com and Priceline.com) between September 2019 and October 2020. A quasi-experimental approach, Difference-in-Differences, was used to isolate the impacts of the new scoring system from the impacts of the change in the service evaluation environment, i.e. COVID-19.FindingsThe change in the scoring system considerably alters review distributions by decreasing the portion of positive reviews but increasing the portion of highly positive reviews. Using the theory of emotion work (Hochschild, 1979, 2001), DID is also the reason that the former M-D smiley-based system could have underrated, highly positive reviews of services. Using the information transfer theory (Belkin, 1984), the authors reason the asymmetric transfer of information when users consume reviews from the older (M-D) system but are required to generate reviews on a newer (S-D) system.Practical implicationsThe findings would provide online review platform management with a deeper understanding of the consequences of changes in service evaluations when the scoring system is changed.Originality/valueThough the change in the scoring system would affect how customers evaluate the services of hotels, the causal impacts of switching to the new S-D scoring system have not yet been thoroughly covered by prior hospitality and service evaluation literature, which this research aspires to do.

Treatment of Tooth Wear Using Direct or Indirect Restorations: A Systematic Review of Clinical Studies.

Tooth wear is considered a well-developed issue in daily clinical practice; however, there is no standard protocol for treatment. The aim of this manuscript was to systematically review the literature to evaluate the clinical outcomes of direct or indirect restorations for treating tooth wear. A literature search was conducted through the PubMed MedLine, Scopus, ISI Web of Science, Scielo, and EMBASE databases up to 29 April 2022. Clinical studies evaluating the clinical performance of direct or indirect restorations for treating tooth wear for a minimum follow-up of 6 months were included in the review. A total of 2776 records were obtained from the search databases. After full-text reading, 16 studies were included in the qualitative analysis. Considering the high heterogenicity of the studies included, a meta-analysis could not be performed. All studies included the rehabilitation of anterior and posterior teeth with extensive wear, using both indirect and direct restorations for a maximum follow-up of 10 years. Restoration materials included ceramo-metal crowns, full gold crowns, lithium disilicate ceramic, zirconia, polymer infiltrated ceramic networks, and resin composites. Most of the reports assessed the survival rate of the restorations and the clinical features using the United States Public Health Service (USPHS) Evaluation System criteria. Contradictory discoveries were perceived concerning the type of restoration with better clinical performance. Considering the current literature available, there is no evidence in the superiority of any restoration technique to ensure the highest clinical performance for treating tooth wear.

High Confident Evaluation for Smart City Services

This study aims to analyze massive data in cities through data vitalization, and quantitatively evaluate smart city services, so as to promote the construction and development of smart cities. Due to the great difference between cities, a single evaluation method cannot accurately describe the development of a city. In this study, we classify cities by multiple labels according to various bases to give cities comprehensive description. Then, a Multi-level Service Evaluation System (MSES) is introduced. It considers individual weights to cities with different characteristics and evaluates the smart city services from different aspects. In addition to putting forward the iterative development of smart city services, a Maturity Model-based Service Evaluation (MMSE) framework is proposed based on the evaluation results of the MSES. It constructs a standardized and high confident evaluation framework to analyze the current state of cities and make feedback to the government policies. Finally, we take 10 cities in China to demonstrate the effectiveness of MMSE during the development of smart city services.

American After-school Service Evaluation System and Its Enlightenment to Chinese After-school Services under the "Double Reduction" Policy

The introduction of the "double reduction" policy has further promoted the reduction of students’ burdens, the correction of After-school training, and the improvement of After-school services. Students and their parents have higher expectations for After-school services. How to establish a normalized, standardized, and diversified After-school service system and improve the quality of After-school services has become our compulsory education stage to solve the problem. Throughout the current research about After-school services in our country, we are still in the infancy stage, the implementation of After-school services is varied, and various types of After-school counselling organizations occupy a large proportion of After-school service market, which makes it difficult to conduct effective regulation and evaluation for a long time. After years of development of After-school services in the United States, they have very rich experience in the evaluation of After-school services and are worthy of our reference. Therefore, this research will be based on the service evaluation after class in terms of purpose, content, and method; the results analysis of these three aspects will summarize experience and draw lessons from it in combination with China’s national conditions on the basis of class services; and the formation that belongs to China after the class service evaluation system will be used to get inspiration, advice, and formation to provide more quality services after class in our country.

湟水国家湿地公园湿地价值及其辐射格局研究

评估湿地价值量并分析价值的空间分布情况, 对湿地保护管理和区域规划利用具有重要的指导意义。以青海西宁湟水湿地公园为研究区, 构建一套适合高原城市湿地的生态系统服务评价体系, 采用功能价值法和断裂点模型法, 分析公园的湿地价值及其辐射格局特征。结果表明: (1)2020年湟水国家湿地公园的15项生态系统服务的总价值为6.18亿元, 四大服务价值量按照价值高低排序依次为文化服务、调节服务、支持服务和供给服务; (2)5个评价区中, 湟水主河道的价值最高, 其次为北川湿地和海湖湿地, 最后是火烧沟公园和宁湖湿地; (3)5大湿地区生态系统服务的辐射范围由大到小依次为: 宁湖湿地>北川湿地>湟水主河道>海湖湿地>火烧沟公园; 对湿地服务辐射范围叠加处理后, 形成1个核心区和5个次核心区域; (4)湟水国家湿地公园的生态系统服务存在空间溢出情况, 湟水主河道的生态系统服务向周边湿地公园溢出, 其他四个湿地区之间生态系统服务存在相互溢出和叠加的现象。;Evaluation of wetland ecosystem services and its spatial distribution is of great significance for wetland conservation, management and sustainable utilization. There are characteristics of population agglomeration, sensitive and fragile ecological environment, disturbed by human activities, and great demand for wetlands in plateau cities. However, due to the constraints of climate and geographical conditions, some wetland ecosystem services are very limited. Taking the Huangshui National Wetland Park (HNWP) as a case study, the current paper constructed an ecosystem service evaluation system that is suitable for plateau city wetland. Combined field investigation data with the analysis of experimental data, we analyzed the wetland value and its radiation pattern characteristics by using function value methods and the break-point model. The results showed that: (1) the total value of the 15 ecosystem services from HNWP was 6.18×10⁸ Yuan in 2020. Four types of the ecosystem services were sorted through large to small as cultural services, regulation services, support services and supply services. The value of each ecosystem service from high to low was humidification > recreation services > heritage value > existence value > surface water storage > river sediment transport > culture and education research > temperature regulation > biodiversity protection > ecological and environmental water use > air filtration> oxygen release > carbon fixation > sewage treatment > harvestable plant products. (2) In the five wetland parks of the HNWP, the value of the Huangshui River was the highest, followed by the Beichuan wetland, the Haihu wetland, the Huoshaogou wetland and the Ninghu wetland. (3) The order for radiation pattern from large to small was Ninghu Wetland, Beichuan Wetland, Huangshui River, the Haihu Wetland and the Huoshaogou Wetland. A core area and five sub-core areas of the ecosystem services were formed after the overlap of the wetland service radiation pattern. (4) There was spatial spillover of ecosystem services in the HNWP. The ecosystem services from Huangshui River overflow to the surrounding wetland parks, and there were mutual spillover and superposition of ecosystem services among Haihu Wetland, Beichuan Wetland, Ninghu Wetland and Huoshaogou wetland. Overall, the results of this study focused on the ecosystem services of urban wetlands, clarified the boundary of ecosystem services on the basis of the evaluation, and determined the spillover and superposition of ecosystem service between different wetlands in the same region. The information may support the sustainable utilization of plateau urban wetlands, which provides a reference for implementing ecological civilization construction.

环京津城市群生态系统服务的时空演变与驱动因素

PDF HTML阅读 XML下载 导出引用 引用提醒 环京津城市群生态系统服务的时空演变与驱动因素 DOI: 10.5846/stxb202111203270 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 中央高校基本科研业务费专项资金资助（2021ZY33）；国家林草局重点项目（2019132703，2020132109） Spatial and temporal evolution and drivers of ecosystem services in Beijing, Tianjin and the Beijing-Tianjin Ring urban agglomeration Author: Affiliation: Fund Project: The National Natural Science Foundation of China（NO.51908034） 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:城市群已成为全球经济竞争的新空间单元，在促进城镇化建设，实现资源优质配置和发挥辐射带动作用等方面发挥着重要的功能。但剧烈的社会经济活动必然会对城市群生态系统服务造成破坏，因此开展城市群生态系统服务的时空演变研究，进而探索不同驱动因子对其的作用机制具有重要意义。目前，在已有的研究中缺少对城市群尺度和长时间跨度下的生态系统服务水平演变与驱动因素探究。为此，选取京津及环京津地区为研究区域，通过总结区域生态问题，构建起研究区域生态系统服务评价体系，并对2000-2018年生态系统服务进行计算，分析时空演变特征。然后，通过最小二乘法模型（Ordinary Least Squares，OLS）筛选出潜在的驱动因子，并导入地理加权回归模型（Geographically Weighted Regression，GWR）进行地理加权回归计算。最后，通过对结果分析，探讨自然和社会因子对生态系统服务的作用机制。研究结果表明：1）2000-2018年，研究区域生态系统服务呈现出先上升后下降，在2015年达到最高值的发展特征。2）在空间上，研究区域生态系统服务内总体上呈现燕山山脉及太行山山脉北部区域为生态系统服务的高值区域，坝上区域为低值区的空间分异特征。同时，生态系统服务演变在空间上呈现以燕山和太行山为界，燕山和太行山区域呈现先减弱后提升的趋势，西北区域整体呈现减弱趋势，东南区域从2015年起逐渐降低的空间演化特征。3）在驱动因素方面，自然环境和社会经济因素对生态系统服务的驱动作用从强到弱排列依次是：降雨量 > 土壤含沙 > 人口密度 > 温度 > 基础设施密度。4）其中，人口密度、土壤含沙量、基础设施呈较为明显的负相关驱动特征，降雨量呈较为明显的正相关驱动特征，温度则呈南部负相关，北部正相关，由东南向西北影响增强的趋势。本研究通过评估环京津城市群生态系统服务，分析区域生态系统服务的分析演变特征，并探索区域自然、社会因子对生态系统服务的驱动作用，为环京津城市群未来的生态环境保护和规划策略制定提供了科学指导和决策依据。 Abstract:Urban agglomerations have become a new spatial unit for global economic competition and had important functions in promoting urbanization, achieving high-quality allocation of resources and driving economic development. Intense socio-economic activities, however, are bound to cause damage to the ecosystem services of urban agglomerations. It is important to conduct studies on the spatio-temporal evolution of the ecosystem services of urban agglomerations and explore its driving factors. In this study, Beijing, Tianjin and the Beijing-Tianjin Ring were selected as the study area. The experiments constructed an ecosystem service evaluation system for the study area by summarizing regional issues, calculated ecosystem services from 2000-2018, and also analyzed their spatial and temporal evolution characteristics. Then, the potential drivers were screened out by the ordinary least squares model of the experimental data and imported into the geographically weighted regression model for regression. Finally, the driving role of natural and social factors on ecosystem services is explored, through an analysis of geographically weighted regression results. Firstly, the ecosystem services of the Beijing-Tianjin-Hebei urban agglomeration showed an upward and then downward trend from 2000 to 2018, reaching the highest value in 2015. Secondly, Spatially, the ecosystem services in the study area generally show the spatial differentiation characteristics of high value areas in the northern regions of Yanshan Mountains and Taihang Mountains, and low value areas in the dam area. At the same time, the evolution of ecosystem services spatially shows the boundary between Yanshan and Taihang Mountains, with the Yanshan and Taihang Mountains regions showing a trend of first weakening and then improving, while the northwest region shows an overall weakening trend and the southeast region gradually decreases from 2015 onward. Thirdly, Natural environment and socio-economic factors drive ecosystem services in descending order of strength:rainfall > soil sand content > population density > temperature > infrastructure density. Fourth, the population density, soil sediment concentration and infrastructure showed significantly negative correlation driving characteristics, while the rainfall showed significantly positive correlation driving characteristics, while the temperature showed negative correlation in the south and positive correlation in the north, with an increasing trend from southeast to northwest. Overall, by assessing the ecosystem services of the Beijing-Tianjin urban agglomeration, analyzing the analytical evolution characteristics of regional ecosystem services, and exploring the driving roles of regional natural and social factors on ecosystem services, this study provides scientific guidance and decision basis for the future ecological environmental protection and planning strategy formulation of the Beijing-Tianjin urban agglomeration. 参考文献 相似文献 引证文献

A comprehensive industrial practice for Industrial Internet Platform (IIP): General model, reference architecture, and industrial verification

With the upgrading of industrial era, the rise of industrial Internet environment and the development of intelligent technology, enterprises will pay more attention to the system platform, information sharing, network collaboration, personalized customization and recommendation of services when designing, implementing and operating an industrial information platform, which is called Industrial Internet Platform (IIP). In the existing literature, scholars focus on a local dot, such as: technology, function, elements and application based on IIP. However, there is a lack of an overall framework to study the top-level planning of IIP implementation from a systematic perspective. Moreover, there are few studies on the detailed path and steps of IIP implementation in a specific industry. The research objective is to study the general model, reference architecture, service evaluation index system, implementation path, application verification, etc. for IIP which meets the needs of industry on the basis of existing theory and industrial practice, and to provide reference for government and industry planning, design, implementation and promotion of IIP. From a case study, the comprehensive performance rate of comprehensive ability for IIP in a pharmaceutical manufacturing industry enterprise is calculated. It can reflect the comprehensive ability for IIP in enterprise from the ability of the IIP’s resource management, platform technology, industrial application, and etc. In addition, the general model, reference architecture, implementation path and service evaluation system of IIP can improve the enterprise's resource management ability, platform service ability, industrial application ability, and enhance the core value of the enterprise and increase benefits.

A collaborative service resource evaluation model based on trust network

In the era of the 5G network, network traffic grows rapidly. Edge computing will face the challenges of high bandwidth, low latency, high reliability and other requirements of 5G network services. Due to the limited resources of node communication, computing and storage, under the sudden, intensive and high-traffic task request, edge computing will suffer from network jitter, excessive delay, access congestion, service failure and low distribution efficiency. In order to ensure network service quality and improve service efficiency, it is necessary to construct an effective collaborative service mechanism, motivate nodes to participate in cooperation, integrate network service resources and self-adapt to manage collaborative services. Therefore, establishing an effective node and service evaluation system to identify reliable resources and nodes is an effective way to improve the overall availability and reliable services of edge computing network. In this paper, we summarize and analyze the key technologies of the current collaborative service organization incentive and trust mechanism. This paper presents an attack-resistant node and service evaluation system based on a trust network. The system includes a voting collection mechanism, a trustable node selection mechanism, a questioning response mechanism and a punishment mechanism. The experiments prove that the system has a strong ability to resist attacks and is superior to the existing reputation evaluation model in terms of its performance. It can effectively improve the collaborative efficiency of edge computing and guarantee the quality of network service.

THE CONSTRUCTION OF PUBLIC SPORTS SERVICE GUARANTEE SYSTEM IN A HEALTHY COMMUNITY IN THE BACKGROUND OF PUBLIC HEALTH

ABSTRACT Community sports are a very important part of urban public service. It directly affects the quality of life of residents and plays an important role in improving the health level of the masses. However, there are still many problems in the current public sports service system, which hinders the provision of public health. In order to ensure the effectiveness of the indicators of community sports service guarantee system, this study uses the fuzzy analytic hierarchy process to construct the community public sports service guarantee system, and verifies the effectiveness of the system constructed by this method through an example application. The results show that the weight of each index from large to small is service effectiveness > residents' demand > service capacity > service content; the weight of service effectiveness is 48.46%, which is an important indicator of service guarantee system. In addition, the effectiveness of the community sports service system was verified, and the CR value of the evaluation index system was greater than 0.1, which showed that the consistency of the evaluation index system met the requirements. The public sports service guarantee system constructed by the research institute has good applicability and high practical value. I hope that the research results can provide some reference for the improvement of grass-roots sports service construction, and provide some theoretical support for the construction of grass-roots service evaluation system.