In the PPP project of rural sewage treatment, data mining technology is used to analyze the relationship of benefit and cost

Applied Mathematics and Nonlinear Sciences, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 1, 2025

Abstract With the urbanization process and population development, rural sewage treatment is a serious problem, which brings harm to environment human health, emergence of PPP project opportunities. This paper takes as research topic, it corresponds proposed theory its full life cycle. Integrating data mining technology based on DEA model, establishes an input-output index system evaluate relationship between incremental cost benefit. Taking Anhui Province China main area, quantitative analysis regional wastewater management being carried out. The average values economic, environmental social benefits in were 1.07, 0.99 0.99, respectively, Huainan adopts program, one areas all benefit indexes have increased, while Xuancheng does not adopt exactly opposite. total 78.75 million yuan 52.58 yuan, accounting for 73.36% 55.29% operating cost, respectively. In terms revenue, Rural Wastewater Treatment sales gross profit was 5.28 with margin 6.53%. However, reached 12.27 18.63%.

Language: Английский

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Evaluation of green innovation efficiency in catering industry based on data envelopment analysis

Applied Mathematics and Nonlinear Sciences, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 1, 2025

Abstract Green innovation makes economic growth rely on scientific and technological innovation, replaces the traditional cheap labor energy-driven development mode, achieves goal of ecological environment improvement sustainable development, realizes green society as a whole. In this paper, China’s catering industry is selected specific research object, system indicators for measuring efficiency built, an SBM-DEA model based non-expected outputs constructed, Malmquist-Luenberger productivity index introduced to improve model, realizing evaluation in 30 provinces regions China. Meanwhile, convergence status regional national explored according China whole East West. The values two stages technology industrialization are 0.6149 0.8751, respectively. value second stage significantly higher than that first stage. through comparison, it can be seen has clear gap between regions, dynamic most provincial administrative units greater 1. addition, from 2014 2023, change trend presented by inter-regional differences food beverage East-Central, East-West, Center-West overall decreasing trend, is, convergence, which provides data support relevant decisions.

Language: Английский

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Efficiency Measurement and Trend Analysis of the Hydrogen Energy Industry Chain in China

Sustainability, Journal Year: 2025, Volume and Issue: 17(7), P. 3140 - 3140

Published: April 2, 2025

Hydrogen energy, characterized by its abundant resources, green and low-carbon attributes, wide-ranging applications, is a critical energy source for achieving carbon peaking neutrality goals. The operational efficiency of the hydrogen industrial chain pivotal in determining security supply contribution to China’s transition. This study investigates selecting 30 listed companies primarily engaged as research sample. A three-stage data envelopment analysis (DEA) model applied assess industry’s comprehensive technical efficiency, pure scale efficiency. Additionally, kernel density estimation utilized analyze trends over time. Key factors influencing are identified, targeted recommendations provided enhance performance sustainability chain. These findings offer valuable insights support development resilience industry.

Language: Английский

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Equity analysis of regional human resource allocation in higher education

Applied Mathematics and Nonlinear Sciences, Journal Year: 2024, Volume and Issue: 9(1)

Published: Jan. 1, 2024

Abstract Higher education, as the most important link in national education system, shows an imbalance allocation of its human resources both time and space. In view this, this paper uses DEA-BCC model spatial measurement to construct a higher resource efficiency model, which is used analyze depth imbalanced state regional China. The utilized conduct empirical research on equity education. To explore status three major regions (31 provinces) China from 2016-2023. Using statistical data, number full-time teachers, enrolled students, teacher-student ratio each region are analyzed. mean values China, high low, central (0.988), eastern (0.953), western (0.928). Among 31 provinces, Beijing, Shanghai Henan have highest value technical (1.000), lowest Tibet (0.768), average 0.950. has more faculty educated groups than regions. faculty-to-student ratios 2020 1:16.04, 1:20.25, 1: 17.53, all room for adjustment.

Language: Английский

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