Dynamic evaluation of China's ecological civilization construction based on target correlation degree and coupling coordination degree

2022 ◽  
Vol 93 ◽  
pp. 106734
Author(s):  
Pan Chen ◽  
Xiaoqing Shi
CONVERTER ◽  
2021 ◽  
pp. 90-102
Author(s):  
Liu Shaoli, Zhou Xin

This paper constructs a quality evaluation indicator system of four systems: economy, society, culture and ecological civilization to measure their coupling relationship and coordination degree indicator, taking Henan province and Zhengzhou city as the research objects, and taking the panel data of 42 specific evaluation indicators from 2000 to 2019 as the evaluation sample. The results show that the biggest contributors to the development quality of economy, culture and ecological civilization of Henan province and Zhengzhou city are the total business volume of posts and telecommunications, the application number of patents, the proportion of investment in environmental pollution control in GDP respectively. During the period of 2000 to 2019, the comprehensive evaluation values of economy, society and culture development quality of Henan province and Zhengzhou city improved constantly, and the change trend were highly consistent, while the changes of that of ecological civilization development quality were far from each other. The coordination degree indicators of the four systems in Henan province and Zhengzhou city were very low, and they are in a state of low disorder at present.


2020 ◽  
Vol 12 (21) ◽  
pp. 8845
Author(s):  
Jianxue Chai ◽  
Lihui Zhang ◽  
Meng Yang ◽  
Qingyun Nie ◽  
Lei Nie

In the context of ecological civilization construction (ECC) and energy revolution strategy, there are many studies on ECC or electric power green development (EPGD). However, EPGD and ECC influence each other and are closely related, and there are few studies on the development relationship of EPGD and ECC. Therefore, this paper aims to study the coupling coordination relationship between EPGD and ECC to make them develop in harmony. Firstly, an evaluation index system of EPGD and ECC for their coupling coordination relationship is proposed. Then, this paper combines the coupling coordination degree model (CCDM), improved analytic hierarchy process (AHP) based on cloud model, and regression model to propose a coupling coordination relationship analysis model for EPGD and ECC. The improved AHP based on cloud model can fully reflect the will of decision-makers and effectively deal with the ambiguity and randomness of weight judgment. Finally, this paper conducts an empirical study on Beijing and verifies the applicability of the model proposed in this study. Policy recommendations to promote EPGD and ECC are proposed based on weight analysis, coupling coordination degree (CCD) analysis and regression analysis. This paper provides tools for the study on policies related to power development and ecological civilization.


2020 ◽  
pp. 1-12
Author(s):  
Changxin Sun ◽  
Di Ma

In the research of intelligent sports vision systems, the stability and accuracy of vision system target recognition, the reasonable effectiveness of task assignment, and the advantages and disadvantages of path planning are the key factors for the vision system to successfully perform tasks. Aiming at the problem of target recognition errors caused by uneven brightness and mutations in sports competition, a dynamic template mechanism is proposed. In the target recognition algorithm, the correlation degree of data feature changes is fully considered, and the time control factor is introduced when using SVM for classification,At the same time, this study uses an unsupervised clustering method to design a classification strategy to achieve rapid target discrimination when the environmental brightness changes, which improves the accuracy of recognition. In addition, the Adaboost algorithm is selected as the machine learning method, and the algorithm is optimized from the aspects of fast feature selection and double threshold decision, which effectively improves the training time of the classifier. Finally, for complex human poses and partially occluded human targets, this paper proposes to express the entire human body through multiple parts. The experimental results show that this method can be used to detect sports players with multiple poses and partial occlusions in complex backgrounds and provides an effective technical means for detecting sports competition action characteristics in complex backgrounds.


2011 ◽  
Vol 19 (4) ◽  
pp. 936-939
Author(s):  
Xian-Gui ZHAO ◽  
Cai-Hong MA ◽  
Ling XIAO ◽  
Ye-Xia LAN

2021 ◽  
Vol 13 (3) ◽  
pp. 1326
Author(s):  
Hongfang Li ◽  
Huixiao Wang ◽  
Yaxue Yang ◽  
Ruxin Zhao

The interactions of water, energy, and food, which are essential resources for human survival, livelihoods, production, and development, constitute a water–energy–food (WEF) nexus. Applying symbiosis theory, the economic, social, and natural factors were considered at the same time in the WEF system, and we conducted a micro-level investigation focusing on the stability, coordination, and sustainability of the symbiotic units (water, energy, and food), and external environment of the WEF system in 36 prefecture-level cities across three northeastern provinces of China. Finally, we analyzed the synergistic safety and coupling coordination degree of the WEF system by the combination of stability, coordination, and sustainability, attending to the coordination relationship and influences of the external environment. The results indicated that the synergistic safety of the WEF system in three northeastern provinces need to equally pay attention to the stability, coordination, and sustainability of the WEF system, since their weights were 0.32, 0.36 and 0.32, respectively. During 2010–2016, the synergistic safety indexes of the WEF system ranged between 0.40 and 0.60, which was a state of boundary safety. In the current study, the coupling coordination degree of the WEF system fluctuated around a value of 0.6, maintaining a primary coordination level; while in the future of 2021–2026, it will decline to 0.57–0.60, dropping to a weak coordinated level. The conclusion could provide effective information for decision-makers to take suitable measures for the security development of a WEF system.


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