Research on the Pattern of "Dual Circulation" Development in Zhejiang Province Under Regional Integration Taking Digital Economy as an Example

Xinyi Ding,Liying Lou,Shirong Xie,Tianlan Wei,Cong Cao 한국경영정보학회 2021 한국경영정보학회 학술대회논문집 Vol.2021 No.11

At present, the world economic situation is complex, and the epidemic has dealt a huge blow to global economic development. In this context, it is particularly important for China's economic construction to accelerate a pattern with the domestic circulation as the main body and the mutual promotion of domestic and double cycles between China and international cycles. From the perspective of the industrial chain, China is still in the middle and low end of the value chain, and the overall export competition and trade volume are low. Strengthening China's industrial chain with the help of regional economic integration is an important way to promote the "dual circulation", which can simultaneously stimulate the vitality of the two domestic and international markets, promote each other, and enhance the ability to resist risks. Among them, the Regional Comprehensive Economic Partnership Agreement (RCEP) has become a crucial platform for regional cooperation for China to build a current "dual circulation" development pattern. The development of digital economy relies on the rapid changes of digital technology. With this in-depth development of digital technology and the growing development trend of the digital economy, we are still deeply troubled by the data leakage, data abuse, digital security, network security and other technical issues, which also creates our trust in the digital economy. Studying the digital trust problem is also an indispensable step towards in achieving a healthy, efficient and sustainable digital ecological environment. Although scholars have conducted extensive studies on supply chain services in cross-border transactions and the development trend of the digital economy, the related research results have failed to address the following issues. First of all, due to cultural differences and customs, consumers in different countries often show differences in consumption behaviors. Therefore, it is necessary to conduct a comparative study on consumers in different countries to understand their behavioral preferences and differences. Secondly, most of the current literature on trust issues in cross-border transactions mainly focuses on consumer privacy and information security. It is necessary to sort out the framework of supply chain services and explore consumers' choice strategies when facing different types of services. Finally, scholars often focus on one or several types of influencing factors and ignore the interaction and influence of different types of factors. Therefore, this topic believes that in the current research, the trust relationship management model for the inclusive development of digital trade in the regional integration environment has not been constructed wholly and systematically, and many essential components have not been included in the research framework, which restricts the further development of the research in this field. So, this project will carry out analysis in five dimensions, from the technology and development of the digital economy, the reshaping of services and consumption, the acceptance of the customer, the labor market and ethical and moral safety, to deconstruct the connotation and the pattern of digital economy. This can not only describe the development picture and mechanism of digital economy in each dimension, but also try to clarify the relevance and influence among the dimensions. This project takes the trust of different stakeholders in the digital economy as the entry point. Also, it takes the users and enterprises under regional integration as the research objects to explore the specific factors affecting the trust behavior of the surrounding destiny community. The research process focuses on analyzing the trust management model in the overseas development of Zhejiang enterprises and exploring the changes that RCEP will bring to the overseas development. This project conducted an empirical study based on questionnaires, using a structural equation model through which the measurement and structural models were evaluated. The project verifies information reliability through empirical studies, examines the trust transfer function of trusted third parties in the digital environment through laboratory experiments, and analyzes the factors that moderate trust transfer by relying on partial least squares multigroup analysis. Ultimately, this topic realizes the evaluation of the effectiveness and overall effectiveness of the trust model. The study results verify that RCEP will strongly support Zhejiang enterprises' foreign development, and at the same time, identify some challenges faced by some Zhejiang enterprises in the process of foreign development. Also, the results will be beneficial to discover some new ideas to promote economic development further with RCEP. The research described in this paper was supported by a grant from the National Undergraduate Innovation and Entrepreneurship Training Program (File No. 202110337048).

Comparison of gastric-jejunum pouch anastomosis and Billroth-II reconstructions after distal gastrectomy: a propensity score matching analysis

Guangyu Chen*,Long Cheng*,Liye Liu,Guode Luo,Ming Li,Yi Wen,Tao Wang,Yongkuan Cao 대한외과학회 2022 Annals of Surgical Treatment and Research(ASRT) Vol.103 No.2

Purpose: Our study aimed to make a propensity score matching (PSM) analysis on the clinical application of gastric- jejunum pouch anastomosis (GJPA) and Billroth-II anastomosis after distal gastrectomy. Methods: We collected clinical data from 249 patients who received distal gastrectomy from January 2016 to July 2020. According to the reconstruction method used, all patients were divided into the Billroth-II group and the GJPA group. Clinical data and operation complications were analyzed. Results: The clinical characteristics of the 2 groups were comparable after PSM. In the Billroth-II group, the incidence rate of delayed gastric emptying was higher than that in the GJPA group. Fewer patients suffered reflux gastritis in the GJPA group. The RGB (residue, gastritis, and bile) scores related to the severity of bile reflux into the remnant stomach, gastritis, and residue were higher in the Billroth-II group. Postoperative nutritional status and Visick classification demonstrated that postoperative subjective feelings in the GJPA group were improved significantly. Conclusion: The application of GJPA in reconstruction after distal gastrectomy is safe, economical, and reliable. This reconstruction improved the quality of life of patients. It is worth popularizing widely in clinical settings.

An adaptive hybrid atom search optimization with particle swarm optimization and its application to optimal no-load PID design of hydro-turbine governor

Zhao Weiguo,Shi Tiancong,Wang Liying,Cao Qingjiao,Zhang Hongfei 한국CDE학회 2021 Journal of computational design and engineering Vol.8 No.5

One metaheuristic algorithm recently introduced is atom search optimization (ASO), inspired by the physical movement of atoms based on the molecular dynamics in nature. ASO displays a unique search ability by employing the interaction force from the potential energy and the constraint force. Despite some successful applications, it still suffers from a local optima stagnation and a low search efficiency. To alleviate these disadvantages, a new adaptive hybridized optimizer named AASOPSO is proposed. In this study, the individual and group cognitive components in particle swarm optimization (PSO) are integrated into ASO to accelerate the exploitation phase, and the acceleration coefficients are introduced to adaptively achieve a good balance between exploration and exploitation. Meanwhile, to improve the search performance of the algorithm, each individual atom possesses its own force constant, which is effectively and adaptively adjusted based on the feedback of the fitness of the atom in some sequential steps. The performance of AASOPSO is evaluated on two sets of benchmark functions compared to the other population-based optimizers to show its effectiveness. Additionally, AASOPSO is applied to the optimal no-load PID design of the hydro-turbine governor. The simulation results reveal that AASOPSO is more successful than its competitors in searching the global optimal PID parameters.

Cuprum Metal-Organic-Framework and Polyacrylonitrile-Derived Cu-N-C Electrocatalyst for Application in Zinc-Air Batteries

Yajun Zhao,Jintao Chen,Xiaorui Li,Jiaqing Zhang,Yanan Li,Yajun Zhao,Liye Cao,Xiaoshi Jin 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2020 NANO Vol.15 No.02

Cu-N-C electrocatalyst was successfully prepared with Cu-BTC and polyacrylonitrile as templates by electrospinning and in-situ growth method. The effect of various N-doped content on the electrochemical performance of the catalyst were investigated and the Cu-N-C-0.25 exhibited the best OER/ORRcatalytic activities. When it was applied to the cathode of the zinc-air batteries, the power density of Cu-N-C-0.25 was 209.1 mW cm -2, which exceeded that of the commercial Pt/C + IrO2 hybrid catalyst (157 mW cm -2). The excellent electrochemical performance may be attributed to large number of active sites and high specific surface area on Cu-N-C electrocatalyst. It will be a promising alternative to precious metal catalysts containing Pt, Ir or Ru and their oxides.

Fasting Blood Glucose, Cholesterol, and Risk of Primary Liver Cancer: The Kailuan Study

Xiangming Ma,Haozhe Cui,Miaomiao Sun,Qian Liu,Xining Liu,Guangjian Li,Yaochen Wei,Qingjiang Fu,Siqing Liu,Liying Cao 대한암학회 2021 Cancer Research and Treatment Vol.53 No.4

Purpose The influence of fasting blood glucose (FBG) and cholesterolemia primary liver cancer (PLC) in China was analyzed via a large prospective cohort study based on a community population, and the combined effects between them were investigated. Materials and Methods Overall, 98,936 staff from the Kailuan Group who participated in and finished physical examinations bet-ween 2006 and 2007 were included in the cohort study. Their medical information was collected and they were followed up after examination. The correlations of serum FBG or total cholesterol (TC) with PLC were analyzed. Then, we categorized all staff into four groups: normal FBG/non-hypocholesterolemia, normal FBG/hypocholesterolemia, elevated FBG/non-hypocholesterolemia, elevated FBG/hypocholesterolemia, and normal FBG/non-hypocholesterolemia was used as a control group. The combined effects of elevated FBG and hypocholesterolemia with PLC were analyzed using the Age-scale Cox proportional hazard regression model. Results During 1,134,843.68 person-years follow-up, a total of 388 PLC cases occurred. We found the elevated FBG and hypocholesterolemia increase the risk for PLC, respectively. Compared with the non-hypocholesterolemia/normal FBG group, the risk of PLC was significantly increased in the non-hypocholesterolemia/elevated FBG group (hazard artio [HR], 1.19; 95% confidence interval [CI], 0.88 to 1.62) and hypocholesterolemia/normal FBG group (HR, 1.53; 95% CI, 1.19 to 1.97), and in the hypocholesterolemia/elevated FBG group (HR, 3.16; 95% CI, 2.13 to 4.69). And, a significant interaction effect was found of FBG and TC on PLC. All results were independent from the influence of liver disease. Conclusion Elevated serum FBG and hypocholesterolemia are risk factors for PLC, especially when combined. Thus, for the prevention and treatment of PLC, serum FBG and TC levels should be investigated.